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RECEIVED t FF1�CE CCU roduct Data OFFICE CO 15 2021 Carrier AquazoneTM BUILDING DIVISION CITY OF TIGARD United Technologies Compact Water Source Heat Pumps 1/2 to 6 Nominal Tons Ile'C2©2/- c9c7.9'6.zli /-z9o9 sw &g- , _.11k AQUAZON E'" '4 4`arr='tr A '' k' 1 t 2 } a x .' E { ' {s i esE '4, x ,'1 f ; Iff''' -f,- ;fr ,, ',.,1-,:f:e: ca:!.....nf.t.T ''''''''-',f44-,.414.'f!,`;1-;;;;:fl:N;;;;I' '.'-'f ' ''''''' ' )f-$, i zip«s . 50PCH, PCV 007-070 Compact Water Source Heat Pumps with Puron®Refrigerant(R-410A) k ©Carrier Corporation 2019 Form 50PC-13PD Features/Benefits Carrier Carrier's Aquazone WSHPs Operating efficiency minimizes transmission to the unit struc- are an efficient, compact ture. Aquazone WSHP units offer cooling alternative for all boiler/tower EERs (energy efficiency ratios) to 17.7 Permanent split capacitor motors and retrofit applications and heating COPs (coefficients of per- (PSC) - Single-package horizontally and verti- formance)to 5.1. The standard motor for all 50PC cally mounted water source heat pumps All efficiencies stated are in accordance model heat pumps is a PSC motor. For (WSHPs)with solid-state controls: with standard conditions under ISO all models other than 575-volt units, • Unique double isolation compressor (International Organization for Stan- the supplied motor has 3-speed taps mounting via vibration isolating rub- dardization) Standard 13256-1:1998 for field adjustability. The 575V motor ber grommets for quiet operation and provide among the highest ratings has a single speed tap. • Rotary(007-018)or scroll(024-070) in the industry. Constant torque ECM (electrons- compressors High quality construction cally commutated motor) • Suitable for boiler/tower use or geo- and testing The 50PC unit's constant torque thermal use with extended range blower motor option offers improved option (25°F to 110°F entering All units are manufactured to meet efficiency (ranging from 5 to 15% water temperature range) extensive quality control standards. An based on laboratory test data) over the • Hot gas reheat (HGRH) available for automated control system provides standard PSC motor. This motor is dehumidification capability continuous monitoring of each unit and similar in function to a PSC, but can • Backward compatibility for replacing performs quality control checks as handle up to 1 in. wg external static older units from various manufactur- equipment progresses through the pro pressure making it a wise choice for ers duction process. Standard construc high filtration applications. These • Field convertible discharge air tion features of the Aquazonem units motors are available in unit sizes These 15 arrangement for horizontal units include: • Permanent split capacitor (PSC) or to 070. This motor option is an excel optional constant torque electrons Cabinet lent choice for retrofit, as it offers five cally commutated motor(ECM) Heavy gage galvanized sheet metal cabi speed taps for field adjustment.The • Flexible and reliable multiple proto- net construction enables part standard- constant-torque motors do not require • col WSHP Open controller can use ization (i.e., minimal number of parts) a neutral wire for 460 3 60 power. BACnetl, Modbus2, N2, and Lon- and modular design. Cabinet interior sur- Hanging brackets Works3 protocols for integrating faces are lined with 1/2 in. thick, 11/2 lb All horizontal units come standard with energy efficiency and precise unit fiberglass insulation. Sheet metal sur hanging bracket kits for suspending the control faces are treated for maximum corrosion unit from field supplied hanger rods. • Optional mute package and closed protection to provide resilience for long These kits include heavy duty steel cell foam insulation for quiet opera- term vitality. Compact cabinet dimen brackets and rubber grommets for tion sions fit tight space limitations in both sound and vibration isolation from the • Optional tin-plated copper tubing horizontal and vertical configurations. building structure. and polymer coated aluminum fin Compressor Water connections evaporator coil available Aquazone standard efficiency units • Non-ozone depleting Puron refriger- include a rotarycompressor in sizes 007 All water connections are heavy duty ant(R-410A) 018 and a scroll compressor in size 024 bronze FPT fittings securely fastened to 070 units. Compressors are mounted on the unit corner post. This allows con an isolated system(i.e., from the cabinet) netting to a flexible hose kit without that maximizes vibration isolation and the use of a backup wrench making for easier, faster installation. Table of contents Page Features/Benefits 2 Model Number Nomenclature 5 AHRI/ISO Capacity Ratings 6 Physical Data 7 Options and Accessories 8 Dimensions 12 Performance Data 19 1. BACnet is a registered trademark of ASHRAE Electrical Data 22 (American Society of Heating, Refrigerating, and Air-Conditioning Engineers). Application Data 24 2. Modbus is a registered trademark of Schneider Electric. Control Sequence of Operation 28 3. LonWorks is a registered trademark of Echelon Guide Specifications 34 Corporation. 2 \Carr er Refrigeration/water circuit Optional tin electro-plated copper tub- sturdiness and maximum protection All units have a sealed refrigerant cir- ing with high-tech polymer coated alu- during transit. cuit including a high-efficiency rotary, minum fins protect the air coil from all reciprocating or scroll compressor. forms of corrosive elements in the air- Ease of installation Simplified refrigerant circuits provide stream. Corrosion often results in The Aquazone unit is packaged for easy maintenance, higher accuracy and refrigerant leaks and eventual failure of simple low cost handling and requires excellent performance. Also, standard the air coil costing hundreds of dollars minimal installation. All units are pre- are a reversing valve (4-way valve), to replace. Studies have also shown wired and factory charged with refrig- water-to-refrigerant coaxial (tube-in- that these air coil coatings improve erant. Horizontal units include factory- tube)coil, and enhanced aluminum fin/ moisture shedding and therefore installed hanger isolation brackets. rifled copper tube air-to-refrigerant improve a unit's moisture removal Water connections (FPT) and conden- heat exchanger coil. capability, resulting in a more comfort- sate drains(FPT)are anchored securely able indoor environment. The 50PCH to the unit cabinet. AHRI/ISO and PCV units assure both maximum Aquazone units have AHRI (Air-Con- air coil life and comfort. Simple maintenance and ditioning, Heating, and Refrigeration serviceability Institute)/ISO, NRTL (Nationally Rec- Design flexibility The Aquazone WSHP units are con- ognized Testing Lab), or CSA (Cana- Airflow configurations for horizontal structed to provide easy maintenance. dian Standards Association) labels and units are available in patterns including All units allow easy access to the com- are factory tested under normal oper- left or right return, and top, right, left, pressor section from 2 sides with large ating conditions at nominal water flow back, or bottom discharge. Horizontal removable panels. Additional panels rates. Quality assurance is provided units are field convertible from left or allow access to the blower and control via testing report cards shipped with right discharge to back discharge. box sections. each unit to indicate specific unit per- Vertical units are available in four air The blower housing assembly can be formance under cooling and heating flow patterns including top or bottom serviced without disconnecting modes. Water source heat pumps are discharge with right or left return. ductwork from the dedicated blower New York City MEA (Materials Equip- Standard water temperature range access Blower come with ment and Acceptance) 60-00-E rated. between 50 and 100°F offers maxi- accperess panel.ntly Blowlubricer unitsd bearingso for Quiet operation mum design flexibility for boiler/tower worry-free performance. Blower inlet applications. Water flow rates as low as rings allow blower wheel removal with- All 50PC units have a unique floating 1.5 gpm per ton assist with selection outg having to remove the housing or - basepan; the compressor is mounted from a various range of circulating ductwork connections. on a heavy steel plate which rests on a pumps. Factory-installed options are high density rubber pad on the base of offered to meet specific design require- Electrical disconnection of the blower the unit. In addition, compressors are ments. motor and control box is easily accom- mounted on rubber grommets. This plished via quick disconnects on each double isolation is standard in all 50PC Safe, reliable operation component. units preventing vibration and noise Standard safety features for the refrig- Easy removal of the control box from transmission from the compressor to erant circuit include a high-pressure the unit provides access to all refrigera- the unit structure, resulting in excep- switch, low-pressure sensor to detect tion components. tionally quiet operation. refrigerant loss. Equipment safety fea- The refrigeration circuit is easily tested Cabinets are fully insulated to reduce tures include water loop temperature and serviced through high and low noise transmission, low speed blowers monitoring, voltage protection, water pressure ports integral to the refrigera- are used for quiet operation through coil freeze protection, and standard tion circuit. reduced outlet air velocities, and air-to- electronic condensate overflow shut- refrigerant coils are designed for lower down. All safety features are tested and Maximum control flexibility airflow coil face velocities. A mute run at the factory to assure proper All Aquazone water source heat pumps package is also available for extremely operation of all components and safety feature a factory installed and config- noise sensitive applications. switches. ured unit protection module (UPM), air coil protection All components are carefully designed which regulates unit operation, fea- Optionaland selected for endurance, durabil- tures integrated safeties, and simplifies All units come standard with a copper ity, and carefree day-to-day opera- unit troubleshooting. The UPM module tube, aluminum-fin air coil. These air tion. is compatible with both thermostat and coils employ lanced fin and rifled tub- The Aquazonem unit is shipped to pro- DDC control. ing for maximum heat transfer. Large vide internal and external equipment The UPM provides control of the unit face areas result in lower face velocity protection. Shipping supports are compressor, reversing valve, fan, safety reducing sound while ensuring high placed under the blower housing and features, waterside economizer and hot latent heat removal for maximum compressor feet. In addition, horizontal gas reheat control. It also provides trou- dehumidification in the cooling mode. and vertical units are both mounted on bleshooting fault indication features. oversized pallets with lag bolts for The Complete C control package 3 Features/Benefits (cont) (Carrier includes the UPM and the following fea- Automatic intelligent reset will LED visual output indicates high tures: automatically restart unit 5 minutes pressure, low pressure, low voltage, 50-va transformer assists in accom- after shutdown if the fault has cleared. high voltage, air/water freeze protec- modating accessory loads. Should a fault occur 2-4 times sequen- tion, condensate overflow, and control Anti-short cycle timer provides a tially (field selectable), lockout will status via a LED panel. minimum off time to prevent the unit occur. Lockout reset can be accomplished from short cycling. The 5-minute timer Water coil freeze protection by turning the unit thermostat off and energizes when the compressor is (selectable for water or anti- then back on or by shutting off unit deenergized, resulting in a 5-minute freeze) provides a field selectable power at the circuit breaker. The delay before the unit can be restarted. switch for water and water/glycol solu- method of reset is selectable by the DIP Random start relay provides a ran- tion systems which initiates a fault switch on the unit control board. when temperatures exceed the selected dom delay in energizing each different limit for 30 continuous seconds. Puron® refrigerant WSHP unit. This option minimizes (R-410A) peak electrical demand during start-up Alarm relay setting is a selectable from different operating modes or after 24-v or pilot duty dry contact for acti- Puron refrigerant (R-410A) is a non- building power outages. Each control- vating a remote alarm. chlorine based environmentally bai- ler has a unique random start delay Low pressure bypass timer anced, non-ozone depleting refriger- ranging from 270 to 300 seconds after ant. Puron refrigerant characteristics, power is applied to the board. The low pressure switch is bypassed for compared to R-22,have: 120 seconds after a call for compres- High Binaryand near azeotropic mixture High and low pressure refrigerant sor operation to prevent nuisance lowp protection safeguards against unreli- pressure lockouts duringcold start-upof 50% R 32 and 50%R 125. able unit operation and prevents ref rig- i the heating mode. • Higher efficiencies (50 to 60% erant from leaking. higher operating pressures). Service Test mode with diagnostic • Virtually no glide. Unlike other Condensate overflow sensor is an LED (light-emitting diode) allows alternative refrigerants, the two electronic sensor mounted to the drain service personnel to check the opera- components in Puron refrigerant pan. When condensate pan liquid tion of the WSHP and control system have virtually the same leak rates. reaches an unacceptable level, the unit efficiently. Upon entering Test mode, Therefore, refrigerant can be added " is automaticallydeactivated andplacedg time delays speed up, and the Status if necessary without recovering the in a lockout condition. The sensor rec- LED flashes a code to indicate the last charge. ognizes 30 continuous seconds of over- fault experienced. This mode provides - flow as a fault condition. easy fault diagnosis; based on the fault High and low voltage protection code that the status LED flashes. provides safety protection from exces- Carrier troubleshooting tables provide sive or low voltage conditions. easy reference to typical problems. 4 Model number nomenclature Carrier c 50PCH 024 B C C 3 A C C 1 AquazoneTM Compact Water Source Factory-Installed Options Heat Pump with Puron° 1 - None Refrigerant(R-410A) 2 - Waterside Economizer 50PCH - Horizontal Configuration 8 - MERV 8 Filter 50PCV - Vertical Upflow Configuration 9 - MERV 13 Filter Nominal Capacity-Tons Operating Range/Sound Option/Insulation 007 1/2 024 - 2 042 - 3-1/2 A - Extended Range(25 to 110 F) 009- 3/4 030 - 2-1/2 048 - 4 C - Standard Range(50 to 100 F) D - Extended Range, 1/2-in.Closed Cell Foam 012 - 1 036 - 3 060 - 5 E - Standard Range, 1/2-in.Closed Cell Foam 015 - 1-1/4 041 - 3-1/2 070 - 6 F - Extended Range, Mute,Closed Cell Foam 018 - 1-1/2 J - Extended Range, Mute N - Standard Range,Mute P - Standard Range,Mute,Closed Cell Foam Horizontal Airflow Configuration Return Discharge Blower Motor B - Right Back PSC Valve Options E - Left Right PSC A - 2-Way Solenoid N - Right Left Constant Torque ECM B - Autoflow Regulator(3 gpm autoflow reg) P - Right Back Constant Torque ECM C - None S - Left Back PSC D - 2-Way Solenoid with Autoflow Regulator W- Left Right Constant Torque ECM Y - Left Back Constant Torque ECM Z - Right Left PSC Revision Code A - Revision A Vertical Airflow Configuration D - Revision D J - Left Top/Bottom Constant Torque ECM E - Revision E K - Right Top/Bottom Constant Torque ECM L - Left Top/Bottom PSC Voltage R - Right Top/Bottom PSC 1 - 575-3-60 3 - 208/230-1-60 Control 4 - 265-1-60 C - Standard C Control Package 5 - 208/230-3-60 D - Deluxe D Control Package 6 - 460-3-60 W- WSHP Open DDC Control Package A 575-3-60 with Disconnect C - 208/230-1-60 with Disconnect D - 265-1-60 with Disconnect E - 208/230-3-60 with Disconnect F - 460-3-60 with Disconnect LEGEND ECM — Electronically Commutated Motor Refrigerant Circuit Options PSC — Permanent Split Capacitor Non-Coated Air Coil Coated Air Coil Option Copper Cupronickel Copper' Cupronickel Standard C N A J Hot Gas Reheat E P D F Hot Gas Bypass T S U W Hot Gas Bypass&Reheat L M R V NOTE: Configuration and option availability are subject to change. Please refer to WSHP Builder for availability. 5 AHRI/ISO capacity ratings '(a r 50PC UNITS WITH EXTENDED RANGE AND COPPER COILS WATER LOOP HEAT PUMP GROUND WATER HEAT PUMP GROUND LOOP HEAT PUMP MOTOR UNIT Cooling 86'F Heating 68°F Cooling 59°F Heating 50°F Cooling 77°F Heating 32°F CFM GPM OPTION SIZE Capacity EER Capacity COP Capacity EER Capacity COP Capacity EER Capacity COP BTU/h BTU/W-h BTU/h BTU/h BTU/W-h BTU/h BTU/h BTU/W-h BTU/h 007 6,100 13.20 7,800 5.10 6,800 15.10 4,900 3.40 300 2.0 009 8,200 12.40 9,900 4.70 8,700 14.60 5,700 3.20 330 2.5 012 10,900 12.20 13,000 4.30 11,800 14.10 8,700 3.20 375 3.0 015 14,200 12.80 16,100 4.40 14,200 14.60 11,300 3.30 500 4.0 018 18,200 14.10 20,200 4.60 19,200 16.15 14,300 3.50 600 5.0 024 24,300 14.20 27,400 5.00 25,400 16.90 18,100 3.55 800 6.0 PSC 030 28,200 13.40 32,600 4.70 N/A 29,500 15.60 21,500 3.40 950 7.0 036 36,900 14.30 38,800 4.65 38,500 16.65 27,100 3.55 1200 9.0 041 36,000 14.15 39,100 4.45 37,400 16.20 27,400 3.30 1240 9.0 042 39,600 13.65 42,800 4.45 41,200 15.90 30,000 3.25 1380 10.0 048 46,200 13.95 58,600 4.65 48,400 16.35 39,300 3.40 1640 12.0 060 59,100 13.60 77,800 4.80 61,600 15.80 53,400 3.75 1900 15.0 070 64,000 13.30 72,800 4.40 66,400 15.00 50,800 3.40 2100 16.0 015 13,700 13.90 15,500 4.40 14,400 16.20 10,700 3.30 500 4.0 018 18.500 14.50 19,900 4.70 19,500 16.95 14,000 3.55 650 5.0 024 24,700 14.90 27,000 5.10 25,800 17.65 17,700 3.60 850 6.0 030 28,800 13.50 32,000 4.90 30,100 15.65 20,900 3.55 950 7.0 ECM 036 37,200 14.70 38,400 4.75 N/A 38,800 17.10 26,700 3.60 1200 9.0 041 37,000 14.35 38,200 4.70 38,400 16.45 26,500 3.45 1240 9.0 042 40,500 14.20 41,800 4.60 42,100 16.60 29,000 3.40 1380 10.0 048 47,100 14.30 57,800 4.70 49,300 16.70 38,500 3.45 1640 12.0 060 59,000 14.30 66,400 4.30 61,100 16.40 46,200 3.30 2000 15.0 070 65,200 14.60 71,800 4.60 67,600 16.60 50,000 3.50 2100 16.0 LEGEND NOTES: AHRI - Air-Conditioning,Heating and Refrigeration Institute 1. Ratings based upon AHRI/ANSI 13256-1 with 1-in.disposable filter. COP - Coefficient Performance 2. For specific configuration ratings,refer to WSHP Builder in Carrier ECAT. ,' EER - Energy Efficiency Ratio 3. Vertical/Horizontal airflow. ISO - International Organization for Standardization 4. Ground Loop Heat Pump ratings require an extended range option. NA - Not Applicable 5. Certified in accordance with AHRI/ISO 13256-1. .u�.�i CERTIFIED,. www.ahridirectory,org Water Source HP ANSI/AHRI/ASHRAE/IS013256-1 A 6 Physical data farrier, I PHYSICAL DATA- 50PCH,PCV (007-070) UNITS 50PCH,PCV UNIT 007 009 012 I 015 I 018 024 030 COMPRESSOR(1 each) Rotary Scroll Maximum Water Working Pressure(psig) 400* PSC Fan Motor and Blower Fan Motor Type PSC Fan Motor(hp) i/io 1/6 I 1/4 Blower Wheel Size(Dia x W)(in.) 4.5 x 4.5 I 5.5 x 4.5 9 x 7 Constant Torque Fan Motor and Blower Fan Motor Type PSC Constant Torque Fan Motor(hp) /io 1/3 I 1/3 Blower Wheel Size(Dia x W)(in.) 4.5 x 4.5 I 5.5 x 4.5 9 x 7 WATER CONNECTION SIZE FPT(in.) 3/4 CoaxialCu:0.06 0 08 0.09 0.14 0.24 0.24 Coil Volume(gal.) 0.06 Cu/Ni:0.08 Condensate Connection in.FPT 3/4 VERTICAL CABINET Cu:19 Typical Refrigerant Charge(oz) 16 15 21 Cuub 22 CuN 35 (captbe)/17 i:33 (TXV) Air Coil Dimensions(H x W)(in.) 10 x 14 12 X 16.5 16 X 16.5 20 x 16.5 Std.Filter-1 in.Throwaway(L x H)(in.) 10 x 16 16 x 20 20 x 20 Opt.Filter-2 in.MERV 8 or 13 Throwaway 10 x 16 16 x 20 20 x 20 (LxH) Weight-Operating(Ib) 98 103 105 123 173 177 190 Weight-Shipping(Ib) 126 130 132 151 201 205 217 HORIZONTAL CABINET Typical Refrigerant Charge(oz) 16 Cu:16 CuNi:19 19 22 Cu:35/CuNi:33 Air Coil Dimensions(H x W)(in.) 10 x 14 12 x 16.5 16 x 16.5 16 x 20.5 Std.Filter-1 in.Throwaway(L x H)(in.) 10 x 16 16 x 20 16 x 25 Opt.Filter-2 in.MERV 8 or 13 Throwaway 10 x 16 16 x 20 16 x 25 (LxH)(in.) Weight-Operating(Ib) 96 100 105 136 174 181 190 Weight-Shipping(Ib) 128 132 134 158 208 212 224 50PCH,PCV UNIT 036 I 041 I 042 I 048 I 060 I 070 COMPRESSOR(1 each) Scroll Maximum Water Working Pressure(psig) 400* PSC Fan Motor and Blower Fan Motor Type PSC Fan Motor(hp) 1/2 3/4 I 1/2 I 3/4 Blower Wheel Size(Dia x W)(in.) 9x7 10x8 10x9 11x9 Constant Torque Fan Motor and Blower Fan Motor Type Constant Torque Fan Motor(hp) 1/2 3/4 1 Blower Wheel Size(Dia x W)(in.) 9 x 7 10 x 8 11 x 9 WATER CONNECTION SIZE FPT(in.) 3/4 1 Coaxial Coil Volume(gal.) 0.27 0.49 I 0.62 Condensate Connection in.FPT 3/4 VERTICAL CABINET Cu:44 Cu:43 Typical Refrigerant Charge(oz) 38 52 59 73 CuNi:40 CuNi:42 Air Coil Dimensions(H x W)(in.) 24 x 20.2 20 x 16 24 x 20.2 24 x 26.75 32 x 26.2 ' Std.Filter-1 in.Throwaway(L x H)(in.) 24 x 24 20 x 20 24 x 24 24 x 30 16 x 30(2) Opt.Filter-2 in.MERV 8 or 13 Throwaway 24 x 24 20 x 20 24 x 24 24 x 30 16 x 30(2) (LxH)(in.) Weight-Operating(Ib) 229 217 239 287 307 336 Weight-Shipping(Ib) 255 243 265 312 331 360 HORIZONTAL CABINET Typical Refrigerant Charge(oz) 40 N/A 51 70 61 CuNi:39 Air Coil Dimensions(H x W)(in.) 18 x 27.5 N/A 18 x 27.5 20 x 32 20 x 42 Std.Filter-1 in.Throwaway(L x H)(in.) 18 x 30 N/A 18 x 30 20 x 34.5 20 x 24(2) Opt.Filter-2 in.MERV 8 or 13 Throwaway 18 x 30 N/A 18 x 30 20 x 34.5 20 x 24(2) (LxH)(in.) Weight-Operating(Ib) 226 N/A 231 274 288 316 Weight-Shipping(Ib) 270 N/A 264 299 318 365 LEGEND * 300 psig when unit is built with the 2-way Solenoid Valve option. FPT - Female Pipe Thread NOTE: Refrigerant charges will depend on unit configuration and N/A - Not Applicable design revision. PSC - Permanent Split Capacitor 7 Options and accessories Carrier 0 United Technologies FACTORY- FIELD- ITEM INSTALLED INSTALLED Hot gas bypass prevents icing of the air coil when the - OPTION ACCESSORY Cupronickel Heat Exchanger X unit is operating at low cooling load conditions. The hot Air Coil Protection x gas bypass valve located in the compressor discharge line Extended Range Units x diverts hot gas to the inlet of the air coil. The valve is Hot Gas Reheat x factory set to open when the evaporating pressure falls to Hot Gas Bypass x 90 psig and will modulate to prevent the pressure falling Waterside Economizer x any lower. This setting is field adjustable and this set point Sound Attenuation Package x may be adjusted as required. Constant Torque ECM X Two-Position Water Valve X Waterside economizer is available and allows for free Deluxe D Control Package x cooling for applications where the water loop temperature WSHP Open Multi-Protocol X is able to reach temperatures between 40 and 65°F. When Controller the loop is cold enough, the waterside economizer acts as a WSHP Open Equipment chilled water coil, providing free cooling without the use of TouchT""Device X the compressor(no mechanical cooling). The water leaving WSHP Open System Touch"'" Device X the economizer coil is then directed to the unit coaxial coil, WSHP Open ZS Sensor x which can allow compressor operation in integrated econ- Supply and Return Water x omizer cooling applications. Hose Kits The facto installed waterside economizer coil is mounted Electric Duct Heaters x Edge®Pro 7-Day external to the air coil as shown below. The waterside Programmable Thermostat X economizer is controlled by the factory-supplied and installed aquastat. The aquastat is factory wired to the unit Factory-installed options control board, and has a field adjustable range of—30°F to Cupronickel heat exchangers are available for higher 100°F, with recommended settings of 45°F for cooling. A corrosion protection for applications such as open tower, remote sensing bulb is stored inside the WSHP for ship geothermal, etc. Consult the water quality guidelines for ping and requires field installation. proper application and selection of this option. WATERSIDE ECONOMIZER Air coil protection option offers tin electro-plated cop- per tubing with high-tech polymer coated aluminum fins : "'°"uuiiuuu ii'll''I'' will protect the air coil from all forms of corrosive elements �- ° ° °tl"°liuu Iii, in the airstream. Air coil protection is recommended for IIIIIIIIIII ` primary residence applications to protect against formicary uiiiiiiiiiiiiiiiiilliilllll corrosion. ioppiiii 0 °°'°iuiiiiiiiiiiiiiii • Extended range units insulate the coaxial coil to prevent � u,,��uupiuu condensation, and therefore potential dripping problems, m �.1 in applications where the entering water temperature is ��� � ------ below the normal operating range (less than 50°F). Units ��� are capable of operating at a range of 25 to 110°F. Ther- �` y CO mostatic expansion valves (TXVs) come with the optional .41 extended range units and are designed to vary the flow of refrigerant depending on the load. The TXVs provide unit optimization and more stable control over a wider range of operating conditions. Hot gas reheat (HGRH) allows the unit to not only con- Water flow through the waterside economizer is controlled trol space temperature, but also control humidity levels by a factory installed and wired 3-way motorized valve. within the conditioned space. Both a thermostat and When the waterside economizer is active (based on the humidistat are needed for HGRH operation. Once the aquastat set point), flow is through the waterside econo thermostat reaches the set point temperature and if the mizer coil and then through the coaxial coil. When humidity in the space is above set point, the factory- mechanical cooling is active (when the water loop tem- installed unit control board will energize the reheat valve perature is outside the aquastat set point), water flow is allowing hot gas to flow from the compressor to the hot through the coaxial coil only. gas reheat coil downstream of the air coil. The cool, moist Waterside economizer capacity and performance data can air leaving the air coil is now reheated to produce warmer, be seen in the WSHP Builder selection software. dryer air. The call for sensible cooling will always take pre- cedence over the call for dehumidification, so if at any point the space temperature rises above set point, the HGRH is turned off allowing for cooling only. The HGRH coil and reheat valve are factory installed and factory wired to the unit controller. For HGRH performance data consult the WSHP Builder selection software. 8 Currier; WATERSIDE ECONOMIZER APPLICATION 3-Way Motorized Ball Valve Waterside -I I- N.O. N.C. Economizer Coil Aquastat Fluid to refrigerant I MBV ra) heat exchanger N.O.Fluid In I I ® � "Bulb Strapped Positive shut-off solenoid valve to Fluid" \for variable speed pumping system in line(field-installed) (field-installed) Sound attenuation packages (mute package or fluid flow to the unit when there is no call for cooling or closed cell foam) are available for applications that heating reduces system operating costs, when using vari- require especially low noise levels. With the mute package able speed pumping, by reducing the speed of the primary option, a compressor sound blanket is added to reduce loop pumps. compressor sound output. With the closed cell foam Deluxe D control package provides all of the options option, the entire unit cabinet is lined with high density on the standard Complete C control package in addition to closed cell foam insulation to reduce the fan and compres- the following: sor sound output. • Phase Monitor - Prevent motors from running at tern- Constant torque ECMs are optional on sizes 015-070 peratures above approved ratings, and provides protec- and provide the efficiency and operability of an ECM at a tion against phase loss, phase reversal, and phase lower cost than a constant airflow ECM. Constant torque unbalance. ECMs provide 5 available motor speed taps and will main- • Boilerless Control - For use when the desired means of tain a constant motor torque as external static pressure in heating is an electric heater, and no boiler is installed in the system increases. As the system static pressure a water loop system. increases, reduction in fan airflow with a constant torque • Energy Management Switch- Enables a 24 vac external ECM is minor. signal to control the operation of the WSHP. Two-position water valve is optional on all unit sizes • Pump-Valve Relay - Provides a signal between an Isola- and is a great energy savings option. The valve opens to tion valve and a secondary pump. allow 100% fluid flow through the coaxial heat exchanger • Larger transformer- 75 va transformer. only when there is a call for cooling or heating. Closing off COMPLETE C AND DELUXE D PACKAGE CAPABILITIES CAPABILITY COMPLETE C PACKAGE DELUXE D PACKAGE High and Low Refrigerant Pressure Switches X X Fluid Temperature(Freeze)Protection X X Condensate Overflow Protection Sensor X X Air Temperature(Freeze)Protection X X Anti-short Cycle Timer X X Random Start Relay X X Low Pressure Bypass Timer X X Surge Protection X X Intelligent Reset X X Lockout Reset X X Malfunction(Alarm)Output X X Test Service Mode with LED Fault Indication X X Dehumidification Control via Hot Gas Reheat X X Waterside Economizer Control X X Transformer 50 va* 75 va Field Installed DDC Controller X X Phase Monitor(3-phase Units Only) X Boilerless Control X Energy Management Switch X Pump-Valve Relay X * With HGRH (hot gas reheat), waterside economizer or factory- installed DDC (direct digital controls), the WSHP will have a 75 va transformer. 9 Options and accessories (cont) Carrie ' ',United Technologle. WSHP Open controller continuously monitors and reg- Intuitive fault detection allows prolonged operation of the ulates water source heat pump operation with reliability WSHP.The pre-programmed WSHP Open controller logic and precision. This advanced controller features a sophisti- monitors and pre-emptively shuts down a WSHP as an cated, factory-engineered control program that provides alarming condition approaches instead of causing a hard optimum performance and energy efficiency. lockout of the WSHP. This way, the WSHP can automati- The WSHP Open controller is factory installed and pro- cally restart if the fault condition clears within a set amount grammed to control all factory-installed standard options of time and a local reset of the WSHP is not required. including hot gas reheat and waterside economizer as well Learning adaptive optimal start transitions the WSHP from as provide boilerless electric heat control and demand con- unoccupied set points to occupied set points in the most trolled ventilation. efficient means possible. Over time, the WSHP will learn The WSHP Open controller is programmed to communi- and determine the best adjustment rates of the set points to cate with different protocols including BACnet, N2, Modus provide the most efficient means of shifting the WSHP to and LonWorks. While the controller is programmed to an occupied mode. operate on Carrier's i-Vu® building automation system Field-installed accessories (BAS), the WSHP Open can easily be integrated into a third party BAS. WSHP Open Equipment TouchTM and System NOTE: A separate LON integration card is required for TouchTM touchscreen devices have a color LCD display LonWorks. that allows easy connection to the controllers to view or Three speed fan control provides the most efficient WSHP change the controller's property values including set points, schedule equipment, view trends and alarms and more. operation. All WSHP Open controllers come programmed The Equipment Touch device provides easy connection to from the factory with 3-speed fan control, with user select- one controller while the System Touch device can access able low, medium and high fan speeds. Using the space temperature input, the WSHP Open controller will auto- up to 60 controllers when wired together as a network. matically operate the fan at the lowest of the 3 speeds to For more details about the Equipment Touch and System Touch devices, see either the Equipment Touch or System maintain space temperature while providing increased Touch Installation and Setup Guide. latent heat removal, reduced sound and the lowest fan energy consumption. WSHP Open - ZS sensors are the preferred method of NOTE: Three speed fan control is not available with con- monitoring space temperature, humidity and CO2 levels stant airflow ECM fan motors. Three-speed fan control is when using the WSHP Open controller. available only with constant torque ECM and PSC fan NOTE: The ZS sensor is required for space temperature ° motors. with all WSHP Open controllers. Only a ZS sensor can provide the necessary space temperature input for the WSHP Open controller. ZS SENSOR FEATURES • • 14 68. FEATURES • J. 0 O O O r ♦ O O O O % • • • 0 - O O - i ZS STANDARD ZS PLUS ZS PRO ZS PRO-F Temp,CO2,Humidity X X X X Neutral Color X X X X Addressable/Supports Daisy-Chaining X X X X Hidden Communication Port X X X X Mounts on a Standard 2-in.X 4-in.Electrical Box X X X X Occupancy Status Indicator X X X Push-Button Occupancy Override X X X Set Point Adjust X X X Large,Easy-to-Read LCD X X Alarm Indicator X X Fan Speed Control X Cooling/Heating/Fan Only-Mode Control X F to C Conversion Button X • 10 F3j Carriers ZS SENSOR OPTIONS OPTIONS ZS STANDARD ZS PLUS ZS PRO ZS PRO-F { PART NUMBER Temperature Only ZS-CAR ZSPL-CAR ZSP-CAR ZSPF-CAR Temperature with CO2 ZS-C-CAR ZSPL-C-CAR ZSP-C-CAR ZSPF-C-CAR " Temperature with Humidity ZS-H-CAR ZSPL-H-CAR ZSP-H-CAR ZSPF-H-CAR Temperature with Humidity and CO2 ZS-HC-CAR ZSPL-HC-CAR ZSP-HC-CAR ZSPF-HC-CAR Supply and return water hose kits are available as Edge® Pro 7-day programmable thermostat is avail- accessories. Hose kits are recommended for connection able for connecting a unit directly to a wall mounted ther- between the unit and the water loop piping. Hose kits are mostat. The Edge Pro thermostat offers 2-stage heat, 24 inches in length, flexible stainless steel and have 2-stage cool, remote sensor capability, pre-occupancy options for manual isolation valves with and without auto- purge, soft start, manual/auto changeover, 4 settings per flow regulators and Y-strainers. day, 24 vac, backlit LCD, keypad lockout, no batteries Electric duct heaters are available ranging from 5 to required, 5-minute compressor protection, never lost 20 kW of electric heat in all available WSHP voltages. memory, 3 security levels, and temperature display in These slip-in type heaters provide an extra means of auxil- degrees F or C. iary heat or reheat control. EDGE PRO THERMOSTAT ELECTRIC DUCT HEATERS SLIP-IN HEATER 1 II 60 WRAPPER 111100." HEATING ELEMENTS TERMINAL OR CONTROL BOX 11 • Dimensions cCarrie 0 tloib®AdoNo'Na 50PCH UNIT t Back Discharge Return Air D Opening Return Air j � Opening � C MR I� 11141C K Condensate ` ` N \ Drain Left I WaterIlk....,..........101 Return Connections B Condensate BDrainI11110111" Compressor A Electrical Access Knock-Outs Left Hand Return,Back Discharge Left Hand Return,Right Discharge NOTE:Models 048 and 060 Left Hand Return units have condenser water connections on the front right and electrical knockouts on the front left. jAir Return Air ng Opening CondenserKWater OutJ 1111111101. Condenser Condensate Condensate Water In �' Drain B DrainA A Right Hand Return,Back Discharge Right Hand Return,Left Discharge Service Clearances(Top View) Air Coil Electrical Control Blower Access Box ' Compressor Access and --► 18"Minimum 4 ► Control Access 4- 24"Optimum _ 0 24"Minimum LEGEND _ Blower 36"Optimum R/A -Return Air i 1 Compressor 50PCH007-070 UNITS A B C D E F G H J K M N P 0 R T 50PCH CAB CAB SIDE R/A CONDENSER RECOMMENDED UNIT R/A FRONT TOP FILTER WATER REPLACEMENT WIDTH DEPTH HEIGHT ENDTO DUCT TO WATER WATER TO DISC. TO DISC. END TO TOP TO RACK DUCT CONNECTIONS NOMINAL FILTER SIZE T FILTER WIDTH FILTER INLET OUTLET DISC. WIDTH DISC. HEIGHT DISC. DISC. HEIGHT FLANGE FPT SIZE RACK RACK WIDTH HEIGHT 007 19.0 33.0 11.5 1.5 16.15 15.35 2.38 9.50 5.375 6.30 5.97 4.10 4.875 1.41 11.3 8.6 3/4 10x16x1 009 19.0 33.0 11.5 1.5 16.15 15.35 2.38 9.50 5.375 6.30 5.97 4.10 4.875 1.41 11.3 8.6 3/4 10x16x1 012 19.0 33.0 11.5 1.5 16.15 15.35 2.38 9.50 5.250 6.43 6.31 4.10 4.750 1.14 11.3 8.6 3/4 10x16x1 015 22.0 43.0 17.0 1.5 20.15 21.35 2.86 15.00 8.150 6.43 9.55 4.10 7.650 3.40 16.8 15.0 3/4 16x20x1 015" 22.0 43.0 17.0 1.5 20.15 21.35 2.86 15.00 5.420 9.13 6.11 9.65 4.920 1.23 16.8 15.0 3/4 16x20x1 018 22.0 43.0 17.0 1.5 20.15 21.35 2.86 14.13 5.420 9.13 6.11 9.65 4.920 1.23 16.8 15.0 3/4 16x20x1 024 22.0 43.0 18.0 1.5 25.00 16.50 2.86 14.13 5.420 9.13 6.11 9.65 4.920 1.23 16.8 15.0 3/4 16x25x1 030 22.0 43.0 18.0 1.5 25.00 16.50 2.47 15.00 5.420 9.13 6.11 9.65 4.920 1.23 16.8 15.0 3/4 16x25x1 036 22.0 54.5 19.0 1.5 30.15 22.85 2.86 16.13 6.470 9.13 7.50 10.28 5.970 1.21 18.8 17.0 3/4 18x30x1 042 22.0 54.5 19.0 1.5 30.15 22.85 2.86 16.13 5.270 10.45 6.46 11.30 4.770 1.22 18.8 17.0 3/4 18x30x1 048 25.0 54.5 21.0 1.5 34.60 18.40 2.86 18.52 7.250 10.45 7.46 11.36 6.750 2.16 20.8 19.0 1 20x34.5x1 060 25.0 54.5 21.0 1.5 34.60 18.40 2.86 18.52 6.320 11.76 6.81 12.50 5.820 1.68 20.8 19.0 1 20x34.5x1 070 25.0 65.0 21.0 1.5 48.10 15.40 2.86 18.52 6.320 11.76 6.81 12.50 5.820 1.68 20.8 19.0 1 20x24x1(2) *When waterside economizer is installed,increase width by 7 inches. 5. The 1-in.filter rack extends 1.23-in.beyond the side of the unit.The 2-in.filter t When WSHP Open controller is installed increase depth by 2.6 inches.When rack extends 2.89-in. beyond the side of the unit. The 2-in. filter rack is waterside economizer is installed,increase depth by 7 inches. 4-sided with a filter access door on one end and can accept either a 1 in.or "50PCH015 units built with ECM motor option. 2-in.filter.When a waterside economizer is installed the filter rack will be a 2- NOTES: sided filter rack only. 1. All dimensions are within±0.125 inch. 6. Return and discharge orientations determined when facing panel with water 2. All condensate drain connections are 3/4 in.FPT. connections. • 3. Unit sizes 015-070 can be field converted between end blow and straight through discharge air configurations. 4. Specifications subject to change without notice. 12 r Carrier`, • Ci United leehwlellea 50PCV UNIT F E D D . E G 4-M -1"1<> /` _ N , Le5h /dI N P i C Condenser I C Water Out a a :1/ / Condenser 11>' ' Water In Condensate `~Electrical Drain B A Connections 2 y Left Hand Return Right Hand Return Return Air(Filter)View I I A Blower Blower Access R 18"Minimum /24"Optimum O f I L Compressor Access and Electrical/Control Access Compressor '24"Minimum LEGEND D36"Optimum R/A- Return Air /--Electrical Control Box Front of Unit Service Clearances 50PCV007-070 UNITS A B C D E F G H J K M N P 50PCV CONDENSER RECOMMENDED UNIT WIDTH DEPTH HEIGHT DISC. DISC. CABINET SIDE WATER WATER CONDEN- R/A R/ADUCT FILTER 0 WATER REPLACEMENT SIZE t DEPTH WIDTH EDGE TO TO INLET OUTLET SATE DUCT FLANGE RACK CONNECTIONS NOMINAL FILTER DISC. DISC. DRAIN WIDTH HEIGHT HEIGHT FPT SIZE 007 19.0 19.00 24.25 10.0 8.0 4.5 9.3 2.44 9.68 13.87 16.0 8.0 10.0 5.4 3/4 10x16x1 009 19.0 19.00 24.25 10.0 8.0 4.5 9.3 2.44 9.68 13.87 16.0 8.0 10.0 5.4 3/4 10x16x1 012 19.0 19.00 24.25 10.0 8.0 4.5 9.3 2.44 9.68 13.87 16.0 8.0 10.0 5.4 3/4 10x16x1 015 21.5 21.50 32.25 10.0 8.0 5.8 10.0 2.85 8.45 15.87 20.0 14.0 16.0 3.5 3/4 16x20x1 015** 21.5 21.50 32.25 14.0 14.0 3.1 5.2 2.85 8.45 15.87 20.0 14.0 16.0 5.2 3/4 16x20x1 018 21.5 21.50 32.25 14.0 14.0 3.1 5.2 2.85 8.45 15.87 20.0 14.0 16.0 5.2 3/4 16x20x1 024 21.5 21.50 39.25 14.0 14.0 3.1 5.2 2.80 8.45 18.87 20.0 18.0 20.0 5.2 3/4 20x20x1 030 21.5 21.50 39.25 14.0 14.0 3.1 5.2 2.80 8.45 18.87 20.0 18.0 20.0 5.2 3/4 20x20x1 036 21.5 26.00 43.25 16.0 14.0 4.0 5.0 2.75 10.77 18.87 24.0 22.0 24.0 5.0 3/4 24x24x1 041 21.5 21.50 40.25 16.0 14.0 1.7 4.7 2.80 8.45 18.87 20.0 18.0 20.0 4.7 3/4 20x20x1 042 21.5 26.00 44.25 16.0 14.0 4.0 5.0 2.75 10.77 18.87 24.0 22.0 24.0 5.0 3/4 24x24x1 048 24.0 32.50 45.25 18.0 14.0 7.0 6.2 3.26 13.20 20.87 30.0 22.0 24.0 6.2 1 24x30x1 060 24.0 32.50 45.25 18.0 14.0 7.0 6.2 3.26 13.20 20.87 30.0 22.0 24.0 6.2 1 24x30x1 070 26.0 33.25 58.25 18.0 16.0 7.8 7.2 2.92 13.36 25.87 30.0 30.0 32.0 7.2 1 16x30x1(2) *When waterside economizer is installed,increase width by 7 inches. 4. The 1-in.filter rack extends 1.23-in.beyond the side of the unit.The 2-in.filter t When WSHP Open controller is installed increase depth by 2.6 inches.When rack extends 2.89-in. beyond the side of the unit. The 2-in. filter rack is waterside economizer is installed,increase depth by 7 inches. 4 sided with a filter access door on one end and can accept either a 1-in.or **50PCV015 units built with ECM Motor Option. 2-in.filter.When a waterside economizer is installed the filter rack will be a 2- NOTES: sided filter rack only. 1. All dimensions are within±0.125 inch. 5. Return and discharge orientations determined when facing panel with water 2. All condensate drain connections are 3/4 in.FPT. connections. 3. Specifications subject to change without notice. 6. The local electric codes may require 36 in.or more clearance at the electrical control box. 13 Dimensions (cont) (Carrier 0 Limited Wholo9W • 50PCV WITH FACTORY-INSTALLED DISCONNECT RIGHT RETURN FRONT VIEW TOP VIEW B 0 0.26 1.95RI 1.82 .!', O A DISCONNECT 7.18 1 To 2.19 . . R . . � A DISCONNECT 50PCV007-070 UNITS 50PCV A B C UNIT SIZE WIDTH DEPTH* HEIGHT 007 20.95 19.00 24.25 009 20.95 19.00 24.25 012 20.95 19.00 24.25 015 23.45 21.50 32.25 018 23.45 21.50 32.25 024 23.45 21.50 39.25 030 23.45 21.50 39.25 036 23.45 26.00 43.25 041 21.50 21.50 39.25 042 23.45 26.00 43.25 048 25.95 32.50 45.25 060 25.95 32.50 45.25 070 27.95 33.25 58.25 'If WSHP Open Controller is factory-installed,increase depth by 2.6 inches. NOTE:Dimensions are shown in inches. 14 Carrier 50PCV WITH FACTORY-INSTALLED DISCONNECT LEFT RETURN FRONT VIEW TOP VIEW A . • / B C . 0 . 0 O 1.95 0 0 i 1.82 i DISCONNECT / 0.26 .o I 7.18 cb 0 1 i 2.}19 A / DISCONNECT 50PCV007-070 UNITS 50PCV A B C UNIT SIZE WIDTH DEPTH* HEIGHT 007 20.95 19.00 24.25 009 20.95 19.00 24.25 012 20.95 19.00 24.25 015 23.45 21.50 32.25 018 23.45 21.50 32.25 024 23.45 21.50 39.25 030 23.45 21.50 39.25 036 23.45 26.00 43.25 041 21.50 21.50 39.25 042 23.45 26.00 43.25 048 25.95 32.50 45.25 060 25.95 32.50 45.25 070 27.95 33.25 58.25 it WSHP Open Controller is factory-installed,increase depth by 2.6 inches. NOTE:Dimensions are shown in inches. • 15 Dimensions (cont) � _ ° United Technologies 50PCV WITH WATERSIDE ECONOMIZER TOP VIEW; RIGHT RETURN 50PCV 1MTH WATERSIDE ECONOMZER RIGHT RETURN,TOP DISCHARGE I I ° ' 7-1 E - - ° C I I / I i I \ A A - g 50PCV007-070 UNITS 50PCV A B C D E UNIT WIDTH WIDTH DEPTH DEPTH WIDTH HEIGHT SIZE UNIT ECO OPT UNIT ECO OPT ECO COIL 007 19.00 31.00 19.00 25.00 14.00 24.25 009 19.00 31.00 19.00 25.00 14.00 24.25 012 21.50 31.00 21.50 25.00 14.00 24.25 015 21.50 33.50 21.50 27.50 16.50 32.25 018 21.50 33.50 21.50 27.50 16.50 32.25 024 21.50 33.50 21.50 27.50 16.50 39.25 030 21.50 33.50 21.50 27.50 16.50 39.25 036 21.50 33.50 26.00 32.00 21.00 43.25 041 21.50 33.50 21.50 27.50 16.50 39.25 042 21.50 33.50 26.00 32.00 16.50 43.25 048 24.00 38.00 32.50 39.50 27.00 45.25 060 24.00 38.00 32.50 39.50 27.00 45.25 070 26.00 40.00 33.25 40.25 27.00 58.25 LEGEND NOTES: ECO- Economizer 1. Economizer height is the same as the unit height. OPT- Option 2. Dimensions are in inches. 16 (Carrie 50PCV WITH WATERSIDE ECONOMIZER TOP VIEW; LEFT RETURN 50PCV WITH WATERSIDE ECONOMZER LEFT RETURN,TOP DISCHARGE 1 I 1 1 i I_ E Co 0 _ D . I � l A . B . 50PCV007-070 UNITS 50PCV A B C D E UNIT WIDTH WIDTH DEPTH DEPTH WIDTH HEIGHT SIZE UNIT ECO OPT UNIT ECO OPT ECO COIL 007 19.00 25.00 19.00 25.00 14.00 24.25 009 19.00 25.00 19.00 25.00 14.00 24.25 012 21.50 25.00 19.00 25.00 14.00 24.25 015 21.50 27.50 21.50 27.50 16.50 32.25 018 21.50 27.50 21.50 27.50 16.50 32.25 024 21.50 27.50 21.50 27.50 16.50 39.25 030 21.50 27.50 21.50 27.50 16.50 39.25 036 21.50 27.50 26.00 32.00 21.00 43.25 041 21.50 27.50 21.50 27.50 16.50 39.25 042 21.50 27.50 26.00 32.00 16.50 43.25 048 24.00 31.00 32.50 39.50 27.00 45.25 060 24.00 31.00 32.50 39.50 27.00 45.25 070 26.00 33.00 33.25 40.25 27.00 58.25 LEGEND NOTES: ECO- Economizer 1. Economizer height is the same as the unit height. OPT- Option 2. Dimensions are in inches. 17 Dimensions (cont) Carrier: UeiNE fiMn.l.gb. 50PCH007-070 CORNER WEIGHTS (lb) 1 UNIT TOTAL(lb) LEFT HAND EVAPORATOR RIGHT HAND EVAPORATOR SIZE Left Front* Right Front* Left Back Right Back Left Front* Right Front* Left Back Right Back 007 98 28 21 25 24 21 28 24 25 009 103 29 23 26 25 23 29 25 26 012 105 29 24 26 26 24 29 26 26 015 127 36 28 34 29 28 36 29 34 018 177 57 36 48 37 36 57 37 48 024 181 58 37 48 38 37 58 38 48 030 194 61 41 52 41 41 61 41 52 036 237 71 49 66 52 49 71 52 66 042 231 70 47 64 50 47 70 50 64 048 268 87 60 62 60 60 87 60 62 060 288 88 65 69 66 65 88 66 69 070 316 98 72 76 70 72 98 70 76 *Front is control box end. 18 Performance data Carrie Please see the WSHP Builder for cooling and heating per- formance data. ANTIFREEZE CORRECTION TABLE COOLING HEATING WPD ANTIFREEZE ANTIFREEZE% EWT 90°F EWT 30°F CORRECTION TYPE FACTOR Total Capacity Sensible Capacity kW Heating Capacity kW EWT 30°F Water 0 1.000 1.000 1.000 1.000 1.000 1.000 5 0.997 0.997 1.004 0.989 0.997 1.060 10 0.994 0.994 1.006 0.986 0.995 1.125 Propylene 15 0.990 0.990 1.009 0.978 0.988 1.190 Glycol 25 0.983 0.983 1.016 0.960 0.979 1.300 30 0.979 0.979 1.020 0.950 0.974 1.736 35 0.975 0.974 1.024 0.940 0.969 1.834 5 0.997 0.997 1.003 0.990 0.997 1.060 Methanol 10 0.996 0.996 1.005 0.979 0.993 1.100 15 0.994 0.994 1.008 0.970 0.990 1.140 20 0.992 0.992 1.011 0.961 0.987 1.248 5 0.998 0.998 1.002 0.981 0.994 1.160 Ethanol 10 0.996 0.996 1.004 0.960 0.988 1.230 15 0.992 0.992 1.006 0.944 0.983 1.280 25 0.986 0.986 1.009 0.917 0.974 1.400 5 0.997 0.997 1.003 0.993 0.998 1.060 10 0.995 0.995 1.004 0.986 0.996 1.120 Ethylene Glycol 15 0.992 0.992 1.005 0.980 0.993 1.190 25 0.988 0.988 1.009 0.970 0.990 1.330 30 0.985 0.985 1.012 0.965 0.987 1.400 LEGEND EWT- Entering Water Temperature WPD- Water Pressure Differential 19 Performance data (cunt) earr`er 50PCH,PCV(007-070)BLOWER PERFORMANCE— STANDARD PSC UNIT 50PCH, RATED FAN AIRFLOW(cfm)AT EXTERNAL STATIC PRESSURE(in.wg) PCV AIRFLOW SPEED 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 i Low 370 340 295 250 — — — — — — 007 300 Med 390 360 330 300 260 — — — — — — — High 410 380 350 315 280 210 — — — — Low 370 340 295 250 — — — — — — — — 009 350 Med 390 360 330 300 260 — — — — — High 410 380 350 315 280 210 — — — — — — Low 300 290 290 300 — — — — — — 012 400 Med 380 380 360 330 290 — — — — — — — High 420 400 380 360 340 320 — — — — Low 500 450 400 — — — — — — — — — 015 500 Med 560 520 480 430 400 — — — — — — — High 700 650 600 550 500 450 400 — — — — — Low 630 590 560 — — — — — — — — — 018 600 Med 810 790 760 730 680 590 — — — — High 1010 970 920 870 800 680 530 — — — Low 740 730 700 660 610 — — — — — — — 024 800 Med 830 810 770 730 680 620 — — — — High 1000 950 900 830 750 690 630 — — — — — Low 740 730 700 660 610 — — — — — — — 030 950 Med 830 810 770 730 680 620 — — — — — — High 1000 950 900 830 750 690 630 — — — — — Low 1290 1250 1200 1150 1080 1000 — — 036 1200 Med 1410 1350 1290 1220 1150 1060 900 — — — I High 1500 1440 1370 1290 1210 1120 1000 900 — — — — Low 950 900 840 780 720 700 — — — — — — 041 1250 Med 1200 1140 1080 1010 930 870 820 — — — — — High 1490 1400 1320 1240 1160 1080 990 910 — — — — Low 1210 1210 1190 1160 1120 1080 — — — — — — 042 1400 Med 1460 1450 1430 1390 1330 1250 1160 — — — — - - High 1750 1710 1670 1620 1560 1460 1330 1210 1080 — — — Low 1450 1440 1420 1400 1360 1320 — — — — — — 048 1600 Med 1700 1670 1630 1580 1530 1470 1400 (208/230V) High 1930 1870 1810 1740 1670 1600 1520 1430 1340 — — — Low 1886 1853 1818 1773 1724 1654 1562 1481 1386 1299 883 — 048 1600 Med 2029 1993 1946 1897 1837 1763 1662 1564 1460 1360 1254 (460V) — High 2225 2170 2105 2032 1961 1885 1793 1666 1541 1435 1298 — Low 1560 1550 1540 1530 1505 1475 1440 1400 — — — — 060 2000 Med 1890 1880 1870 1860 1825 1790 1730 1670 1590 1500 — — High 2220 2200 2150 2100 2050 2000 1940 1870 1800 1700 1590 — Low 1570 1560 1550 1540 1530 1505 1475 1440 1400 — 070 2100 Med 1900 1890 1880 1870 1860 1825 1790 1730 1670 1590 1500 — High 2240 2220 2200 2150 2100 2050 2000 1940 1870 1800 1700 1590 NOTE:575V models employ 1 speed motor(high only) 20 (-CCarrier 50PCH, PCV BLOWER PERFORMANCE— CONSTANT TORQUE MOTOR 50PCH, RATED TAP# AIRFLOW(cfm)AT EXTERNAL STATIC PRESSURE(in.wg) PCV AIRFLOW 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1 480 440 410 370 340 — — — — — — — 2 530 490 450 420 380 340 — — — — — — 015 500 3 600 560 510 470 440 410 370 — — — — — 4 650 600 560 520 500 480 440 380 — — — — 5 710 660 620 580 550 520 490 470 — — — — 1 630 590 560 530 490 — — — — — — — 2 720 700 670 630 600 560 — — — — — — 018 650 3 790 770 750 710 670 620 560 — — — — — 4 910 890 850 810 740 670 590 520 — — — — 5 1010 970 920 860 810 750 660 530 — — — — 1 620 600 570 540 490 — — — — — — — 2 730 710 670 640 610 550 — — — — — — 024 850 3 820 790 760 740 710 670 630 — — — — — 4 940 910 880 850 800 740 660 — — — — — 5 1070 1010 950 900 840 760 670 — — — — — 1 620 600 570 540 490 — — — — — — — 2 730 710 670 640 610 550 — — — — — — 030 950 3 820 790 760 740 710 670 630 — — — 4 940 910 880 850 800 740 660 — — — — — 5 1070 1010 950 900 840 760 670 — — — — — 1 1120 1090 1055 1030 1000 — — — 2 1260 1230 1200 1170 1140 1080 — — — — — — 036 1200 3 1330 1290 1250 1210 1170 1100 1030 — — — — — 4 1400 1360 1310 1250 1190 1120 1040 960 — — 5 1470 1420 1360 1290 1220 1140 1050 970 890 — — — 1 840 770 700 620 — — — — — — — — 2 1220 1150 1080 1010 950 — — — — — —• — 041 1250 3 1430 1360 1280 1200 1130 1080 — — — — — — 4 1540 1460 1380 1300 1220 1140 1060 — — — — — 5 1620 1550 1470 1370 1260 1180 1090 1000 — — 1 1270 1250 1230 1210 — — — — — — — — 2 1440 1420 1410 1410 1400 1380 1340 — — — — — 042 1400 3 1540 1530 1510 1500 1490 1470 1430 1350 — — — — 4 1650 1630 1610 1600 1580 1530 1460 1360 1240 — — — 5 1730 1720 1700 1670 1620 1570 1490 1380 1260 1100 — — 1 1390 1370 1350 1320 — — — — 2 1600 1580 1550 1530 1510 — — — — — 048 1600 3 1730 1700 1670 1650 1630 1600 1580 1540 — — — — 4 1830 1810 1780 1760 1740 1710 1670 1600 1520 — — — 5 1930 1910 1880 1860 1830 1780 1720 1640 1540 1420 — — 1 1900 1880 1860 1820 — — — — — — — — 2 2000 1970 1950 1920 1890 1860 — — 060 2000 3 2110 2090 2060 2030 2010 1970 1940 1910 1880 — — — 4 2220 2200 2170 2140 2110 2080 2050 2060 2050 2000 1920 — 5 2340 2320 2290 2260 2230 2210 2180 2150 2110 2070 2000 1930 1 2050 2010 1970 1930 — — — — — — — — 2 2150 2120 2080 2030 1990 1960 — — — — 070 2100 3 2270 2230 2200 2160 2120 2080 2040 2010 1980 — — — 4 2390 2350 2320 2280 2250 2200 2160 2130 2100 2070 2030 — 5 2520 2480 2450 2420 2380 2330 2290 2260 2220 2170 2100 2020 21 ;w .. -_ Electrical data Barrie Uut.d MYaaioglea 50PCH,PCV (007-070) UNIT WITH STANDARD PSC BLOWER MOTOR ELECTRICAL DATA RATED COMPRESSOR 50PCH,PCV VOLTAGE VOLTAGE FAN MOTOR FAN MOTOR TOTAL UNIT MIN CIRCUIT MAX FUSE/ v-ph-Hz MIN/MAX QTY RLA LRA FLA HP FLA AMP HACR 007 208/230-1-60 197/253 1 2.6 17.7 0.96 0.10 3.56 4.2 15 265-1-60 238/292 1 2.6 13.5 0.96 0.10 3.56 4.2 15 009 208/230-1-60 197/253 1 3.4 22.2 0.96 0.10 4.36 5.2 15 265-1-60 238/292 1 2.9 18.8 0.85 0.10 3.75 4.5 15 012 208/230-1-60 197/253 1 4.6 28.0 0.96 0.10 5.56 6.7 15 265-1-60 238/292 1 3.8 22.2 0.85 0.10 4.65 5.6 15 015 208/230-1-60 197/253 1 5.6 29.0 1.10 1.17 6.70 8.1 15 265-1-60 238/292 1 4.6 20.0 0.90 0.17 5.50 6.7 15 018 208/230-1-60 197/253 1 7.4 33.0 1.80 0.25 9.20 11.1 15 265-1-60 238/292 1 6.0 28.0 1.60 0.25 7.60 9.1 15 208/230-1-60 197/253 1 13.5 58.3 1.80 0.25 15.30 18.7 30 024 265-1-60 238/292 1 9.0 54.0 1.60 0.25 10.60 12.9 20 208/230-3-60 197/253 1 7.1 55.4 1.80 0.25 8.90 10.7 15 460-3-60 414/506 1 3.5 28.0 0.90 0.25 4.40 5.3 15 208/230-1-60 197/253 1 12.8 64.0 1.80 0.25 14.60 17.8 30 030 265-1-60 238/292 1 10.9 60.0 1.60 0.25 12.50 15.2 25 208/230-3-60 197/253 1 8.3 58.0 1.80 0.25 10.10 12.2 20 460-3-60 414/506 1 5.1 28.0 0.90 0.25 6.00 7.3 15 208/230-1-60 197/253 1 15.2 79.0 4.40 0.50 19.60 23.4 35 036 265-1-60 238/292 1 11.6 72.0 3.30 0.50 14.90 17.8 25 208/230-3-60 197/253 1 10.4 73.0 4.40 0.50 14.80 17.4 25 460-3-60 414/506 1 5.8 38.0 1.80 0.50 7.60 9.1 15 208/230-1-60 197/253 1 15.4 83.9 4.40 0.75 19.80 23.7 40 041 208/230-3-60 197/253 1 10.4 73.0 4.40 0.75 14.80 17.4 25 460-3-60 414/506 1 5.8 38.0 2.80 0.75 8.60 10.1 15 208/230-1-60 197/253 1 16.1 109.0 4.40 0.50 20.50 24.5 40 042 208/230-3-60 197/253 1 11.2 84.0 4.40 0.50 15.60 18.4 25 460-3-60 414/506 1 5.6 44.0 1.80 0.50 7.40 8.8 15 208/230-1-60 197/253 1 19.6 130.0 4.40 0.75 24.00 28.9 45 048 208/230-3-60 197/253 1 13.7 83.1 4.40 0.75 18.10 21.5 35 460-3-60 414/506 1 6.2 41.0 2.80 0.75 9.00 10.6 15 575-3-60 517/633 1 4.8 33.0 2.60 0.75 7.40 8.6 15 208/230-1-60 197/253 1 26.0 134.0 6.00 0.75 31.80 38.4 60 060 208/230-3-60 197/253 1 16.0 110.0 6.00 0.75 21.10 25.0 40 460-3-60 414/506 1 8.0 52.0 3.00 0.75 10.60 12.6 20 575-3-60 517/633 1 6.0 38.9 3.00 0.75 8.40 9.9 15 208/230-1-60 197/253 1 28.3 178.0 5.50 0.75 33.80 40.9 60 070 208/230-3-60 197/253 1 19.2 136.0 5.50 0.75 24.70 29.5 45 460-3-60 414/506 1 8.7 66.1 2.80 0.75 11.50 13.7 20 575-3-60 517/633 1 6.9 55.3 2.60 0.75 9.50 11.2 15 LEGEND FLA - Full Load Amps NvERTFt HACR - Heating,Air-Conditioning and Refrigeration LRA - Locked Rotor Amps RLA - Rated Load Amps (tEop TO I'CV V L18TE 1 a 22 Carrier 50PCH,PCV UNIT WITH CONSTANT TORQUE ECM BLOWER MOTOR ELECTRICAL DATA RATED COMPRESSOR 50PCH,PCV VOLTAGE VOLTAGE FAN MOTOR FAN MOTOR TOTAL UNIT MIN CIRCUIT MAX FUSE/ v-ph-Hz MIN/MAX QTY RLA LRA FLA HP FLA AMP HACR 015 208/230-1-60 197/253 1 5.6 29.0 2.8 0.33 8.4 9.8 15 265-1-60 238/292 1 4.6 20.0 2.6 0.33 7.2 8.4 15 018 208/230-1-60 197/253 1 7.4 33.0 2.8 0.33 10.2 12.1 15 265-1-60 238/292 1 6.0 28.0 2.6 0.33 8.6 10.1 15 208/230-1-60 197/253 1 13.5 58.3 2.8 0.33 16.3 19.7 30 024 265-1-60 238/292 1 9.0 54.0 2.6 0.33 11.6 13.9 20 208/230-3-60 197/253 1 7.1 55.4 2.8 0.33 9.9 11.7 15 460-3-60 414/506 1 3.5 28.0 2.1 0.50 5.6 6.5 15 208/230-1-60 197/253 1 12.8 64.0 2.8 0.33 15.6 18.8 30 030 265-1-60 238/292 1 10.9 60.0 2.6 0.33 13.5 16.2 25 208/230-3-60 197/253 1 8.3 58.0 2.8 0.33 11.1 13.2 20 460-3-60 414/506 1 5.1 28.0 2.1 0.50 7.2 8.5 15 208/230-1-60 197/253 1 16.7 79.0 4.1 0.50 20.8 25.0 35 036 265-1-60 238/292 1 11.6 72.0 3.6 0.50 15.2 18.1 25 208/230-3-60 197/253 1 10.4 73.0 4.1 0.50 14.5 17.1 25 460-3-60 414/506 1 5.8 38.0 2.1 0.50 7.9 9.4 15 208/230-1-60 197/253 1 15.4 83.9 6.0 0.75 21.4 25.3 40 041 208/230-3-60 197/253 1 10.4 73.0 6.0 0.75 16.4 19.0 30 460-3-60 414/506 1 5.8 38.0 3.2 0.75 9.0 10.5 15 208/230-1-60 197/253 1 16.7 109.0 6.0 0.75 22.7 26.9 40 042 208/230-3-60 197/253 1 11.2 84.0 6.0 0.75 17.2 20.0 30 460-3-60 414/506 1 5.6 44.0 3.2 0.75 8.8 10.2 15 208/230-1-60 197/253 1 19.6 130.0 6.0 0.75 25.6 30.5 50 048 208/230-3-60 197/253 1 13.7 83.1 6.0 0.75 19.7 23.1 35 460-3-60 414/506 1 6.2 41.0 3.2 0.75 9.4 11.0 15 208/230-1-60 197/253 1 26.3 145.0 7.6 1.00 33.9 40.5 60 060 208/230-3-60 197/253 1 15.6 123.0 7.6 1.00 23.2 27.1 40 460-3-60 414/506 1 7.8 70.0 4.0 1.00 11.8 13.8 20 208/230-1-60 197/253 1 28.3 158.0 7.6 1.00 35.9 43.0 70 070 208/230-3-60 197/253 1 19.2 155.0 7.6 1.00 26.8 31.6 50 460-3-60 414/506 1 8.7 75.0 4.0 1.00 12.7 14.9 20 LEGEND FLA - Full Load Amps NNTERTet HACR - Heating,Air-Conditioning and Refrigeration LRA - Locked Rotor Amps RLA - Rated Load Amps C(iiiirio VV LIBTE 23 Application data 'Carrier ; 0 Wed Technologies AquazoneTM water source heat pumps are available in a flexi- Open loop system ble,efficient array of models,which can be used in all types of This system is used where ground water is plentiful. In this • water loop, ground water, and ground loop type systems. application, ground water is pumped through supply piping Aquazone products provide optimal energy efficient solutions from the well to the building. The water is then pumped back and adapt to the most challenging design requirements. into the ground through a discharge well as it leaves the build- • Water loop system ing. An additional heat exchanger is usually installed between the building water piping system and the ground water piping Water loop (or boiler/tower) system applications typically system. This design limits the amount of piping and excava- include a number of units plumbed to a common piping tion required. system. For optimal performance, this system should be Aquazone units are available with an extended range designed between 2.25 and 3 gpm per ton of cooling option for open or closed loop systems. To conserve water capacity. The system is comprised of highly efficient pack- on this type of system, a slow opening/closing solenoid aged reverse cycle heat pump units interconnected by a valve is recommended. Depending on loop water tempera- water loop. The water circuit serves as both a sink and tures, a water regulating valve may be needed. source for heat absorption and rejection and is designed for entering water temperatures between 50 and 90°F. Ground loop systems Within this temperature range units can heat or cool as There are many commonly specified designs for ground required from the same water source. Transferring heat loop applications. Typical designs include vertical and hori- from warm to cold spaces in the building, whenever they zontal loops. In some applications, water is piped from the coexist, conserves energy rather than creating new heat. ground or lake directly to the water source heat pump. Pip- Refer to the Carrier Water Source Heat Pump Sys- ing is limited to the amount of pipe required to get the tern Design Guide for assistance designing water loop water from the source to the unit. systems. The guide includes a practical approach for the NOTE: When utilizing Aquazone water source heat pumps most current design recommendations including: in ground loop systems, refer to design considerations in • Product application including horizontal, vertical, con- the ground water system section. sole, rooftop and water-to-water applications. • Ventilation methods and system design including energy Horizontal ground loop recovery. This system is used when adequate space is available and • Acoustical considerations for different product types. trenching can be easily accomplished. A series of parallel • Addressing indoor air quality (IAQ) issues such as con- pipes are laid out in trenches 3 to 6 ft below the ground • densate removal, humidity control. surface, and then back-filled. Often, multiple pipes are • • Air distribution design including diffuser selection/ used to maximize the heat transfer capability of each layout and ductwork design. trench. The amount of pipe and the size of the ground • Hydronic system design including pipe sizing/layout loop field are based on ground conditions, heating, and and boiler/tower sizing. cooling requirements of the application and system design. • Control configurations such as stand alone, DDC, DCV (demand controlled ventilation), and VVT®(variable vol Vertical ground loop ume and temperature) controls. This system is used in vertical borehole applications. This • Water Source Heat Pump Efficiency/Operational Cost design is well suited for retrofit applications when space is lim- Comparison chart. ited or where landscaping is already complete and minimum • System variations such as a system without a boiler, disruption of the site is desired. The vertical ground loop sys- variable pumping, and VAV (variable air volume) for tern contains a single loop of pipe inserted into a hole. The interior use. hole is back-filled and grouted after the pipe is inserted. The completed loop is concealed below ground. The number of Ground water systems loops required depends on ground conditions, heating and To utilize Aquazone units in ground water applications, cooling requirements,and the depth of each hole. extended range should be specified. This will provide fac- Hybrid systems tory-installed insulation on the coaxial coil to prevent con In some applications, it may be beneficial to incorporate a densate from dripping when entering water temperatures cooling tower into the ground loop system to reduce the are below 50°F. In addition, the copper coaxial coil overall cost. A hybrid system discards excess heat into the installed on the Aquazone units may not be suitable for all air and increases the cooling performance of the ground water conditions. Refer to the Water Conditioning section loop. for proper coaxial coil material selection. Surface water system Condensate drainage This system is typically located near a lake or pond. In this Venting application, the loop can be submerged in a series of coils Properly vent condensate lines to prevent fan pressure beneath the water surface. The number of coils required from causing water to hang up in the piping. Condensate depends on system load and design. This application lines should be pitched to assure full drainage of conden- ' requires minimum piping and excavation. sate under all load conditions. Use chemical treatment to 24 rrier>; remove algae in the condensate pans and drains in geo- outside the standard contaminant limits for a copper heat graphical areas that are conducive to algae growth. exchanger. Trapping Acoustical design • Condensate trapping is a necessity on every water source Sound power levels represent the sound as it is produced by • heat pump unit. A trap is provided to prevent the backflow the source, the WSHP unit, with no regard to attenuation of moisture from the condensate pan and into the fan between the source and the space. Acoustical design goals intake or downstream into the mechanical system. The are necessary to provide criteria for occupied spaces where water seal or the length of the trap depends on the positive people can be comfortable and communicate effectively over or negative pressure on the drain pan. As a rule of thumb, the background noise of the air-conditioning system and other size the water seal 1 in. for every 1 in. of negative pressure background noise sources. on the unit. The water seal is the distance from the bottom of the unit condensate piping connection to the bottom of Acoustical design goals are desirable sound pressure levels the condensate drain line run out piping. Therefore, the within a given conditioned space and are represented by trap size should be double the water seal dimension. noise criteria (NC) curves. The NC curve levels represent a peak over a full spectrum of frequencies.A high value in a low Horizontal units frequency band has the same effect on NC level as a lower Horizontal units should be sloped toward the drain at a 1/4 value in a high frequency band. It is important that sound Lev- in. per foot pitch. If it is not possible to meet the pitch els be balanced over the entire spectrum relative to the NC requirement, a condensate pump should be designed and curve.The lower the NC criteria curve,the more stringent the installed at the unit to pump condensate to a building drain. room acoustical design must be to meet the design goals. Horizontal units are not internally trapped; therefore an It is important to know how to convert NC levels from the external trap is necessary. Each unit must be installed with unit ratings in terms of sound power(Lw). This conversion its own individual trap and means to flush or blow out the depends on the specifics of the acoustical environment of condensate drain. It is not acceptable to use a common the installation. trap or vent for multiple units. The condensate piping sys- The resulting calculations are compared to the NC curve tern should not be designed with a pipe size smaller than selected for the area to assess the acoustical design. the drain connection pipe size. Some of the factors that affect conversion of sound Vertical units power to sound pressure and consequent NC level include: • All vertical units require installation of an external trap. • type of acoustical ceiling Water conditioning • use of metal or flex duct • absorption in the occupied space In some applications, maintaining proper water quality • location in the occupied space may require higher corrosion protection for the water-to- • open or closed layout plan refrigerant heat exchanger. Water quality varies from loca- • use of open or ducted returns tion to location and is unique for each job. Water charac- • orientation of unit to occupant teristics such as pH value, alkalinity, hardness, and specific • use of lined or unlined duct conductance are important when considering any WSHP Hot gas reheat application. Water typically includes impurities and hardness that must be removed. The required treatment Hot gas reheat (HGRH) allows the user to not only control will depend on the water quality as well as type of system. space temperature, but also humidity levels within the condi- Water problems fall into three main categories: tioned space. Excessive moisture in the space can promote 1. Scale formation caused by hard water reduces the heat mold growth leading to damage in the structure or interior transfer rate and increases the water pressure drop surfaces, as well as reducing the air quality and creating an through the heat exchanger.As water is heated, miner- unhealthy environment. als and salts are precipitated from a solution and Possible causes of excess humidity could be a byproduct of deposited on the inside surface of the pipe or tube. the unit having to operate under a widely varying load, an 2. Corrosion is caused by absorption of gases from the oversized short cycling unit, a high percentage of uncondi- air coupled with water on exposed metal. Corrosion tioned outside air being introduced into the space, a high is also common in salt-water areas. latent load in the space or any location where humidity infil- 3. Organic growths such as algae can reduce the heat tration is a problem. transfer rate by forming an insulating coating on the Typical unit control is by a wall mounted thermostat that inside tube surface. Algae can also promote corrosion senses temperature in the occupied space. By utilizing a by pitting. humidistat in addition to the thermostat, part load units with NOTE: In most commercial water loop applications,Aqua- hot gas reheat are able to control the humidity levels in the zone WSHP units use copper water-to-refrigerant heat space well. The hot gas reheat option allows cooling and exchanger. Units can and should be equipped with a dehumidification to satisfy both the thermostat and humidistat cupronickel heat exchanger for applications where water is while preventing over cooling of the space while in the dehu midification mode. 25 Application data (cont) -Ca Wad r a..meie. Once the thermostat reaches set point temperature, and is capacity from total capacity yields latent capacity. Dividing the above humidity set point, the unit controller will energize the latent capacity by 1069 converts the amount of moisture reheat valve operating the unit in hot gas reheat mode, first removal from Btuh to lb/hr. cooling and dehumidifying, then reheating the air (using hot A hot gas reheat valve and a reheat coil are optimal and refrigerant gas)before delivering it to the space, usually 2° to included in the refrigerant circuit. The refrigerant circuits in 5°F below room temperature. The unit operates like a dehu- the cooling and heating modes are identical to a standard heat midifier by reheating the air along a constant sensible heat pump. In the reheat mode, the compressor discharge gas is line, while the relative humidity of the leaving air is reduced. diverted through the reheat valve to the reheat coil which is This option offers significant energy savings over reheating air located downstream of the cooling coil. The superheated with electric heating coils. refrigerant gas reheats the air leaving the cooling coil.The hot The moisture removal capacity of a specific heat pump is refrigerant gas then passes though the water to refrigerant determined by the unit latent capacity rating. A heat pump's coil where it is condensed to a liquid. From this point the rest latent capacity can be determined by reviewing the heat of the cooling cycle is completed as in a regular heat pump. pump specification data sheets. Depending upon the entering There are check valves to prevent refrigerant flow into the water and air conditions, a total and sensible capacity can be reheat coil during standard cooling/heating cycles. interpolated from the data sheets. Subtracting sensible 26 Carrie '"UMW Technologies WATER QUALITY GUIDELINES • CONDITION HX MATERIAL* CLOSED OPEN LOOP AND RECIRCULATING WELL** RECIRCULATINGt Scaling Potential—Primary Measurement Above the given limits,scaling is likely to occur.Scaling indexes should be calculated using the limits below. • pH/Calcium All N/A pH<7.5 and Ca Hardness,<100 ppm Hardness Method Index Limits for Probable Scaling Situations(Operation outside these limits is not recommended.) Scaling indexes should be calculated at 150°F for direct use and at 90°F for indirect HX use.A monitoring plan should be implemented. Ryznar Stability Index All N/A 6.0 to 7.5 If>7.5 minimize steel pipe use. Langelier Saturation Index —0.5 to+0.5 All N/A If<=0.5 minimize steel pipe use. Based upon 150°F direct well,85°F indirect well HX. Iron Fouling Iron Fee,-(Ferrous) All N/A <0.2 ppm(Ferrous) (Bacterial Iron Potential) If Fe2+(ferrous)>0.2 ppm with pH 6 to 8,02<5 ppm,check for iron bacteria. Iron Fouling All N/A <0.5 ppm of Oxygen Above this level deposition will occur. Corrosion Preventiontt pH All 6-8.5 6 to 8.5 Monitor/treat as needed. Minimize steel pipe below 7 and no open tanks with pH<8. Hydrogen Sulfide(H2S) <0.5 ppm All N/A At H2S>0.2 ppm,avoid use of copper and cupronickel piping or HXs. Rotten egg smell appears at 0.5 ppm level. Copper alloy(bronze or brass)cast components are acceptable to<0.5 ppm. Ammonia Ion as Hydroxide, <0.5 ppm Chloride,Nitrate and Sulfate All N/A Compounds Maximum Chloride Levels Maximum allowable at maximum water temperature. 50°F(10°C) 75°F(24°C) 100°F(38°C) Copper N/A <20 ppm NR NR Cupronickel N/A <150 ppm NR NR 304 SS N/A <400 ppm <250 ppm <150 ppm 316 SS N/A <1000 ppm <550 ppm <375 ppm Titanium N/A >1000 ppm >550 ppm >375 ppm " Erosion and Clogging Particulate Size and Erosion <10 ppm of particles and <10 ppm(<1 ppm"sandfree"for reinjection)of particles and a maximum All a maximum velocity of 6 velo city offps.Filteredor maximum 800 micron size. 6 for Any particulate that fps.Filtered for maximum 800 micron size. is not removed can potentially clog components. Brackish Use cupronickel heat exchanger when concentrations of calcium or sodium All N/A chloride are greater than 125 ppm are present.(Seawater is approximately 25,000 ppm.) LEGEND ttlf the concentration of these corrosives exceeds the maximum allowable HX — Heat Exchanger level,then the potential for serious corrosion problems exists. N/A — Design Limits Not Applicable Considering Recirculating Sulfides in the water quickly oxidize when exposed to air,requiring that no Potable Water agitation occur as the sample is taken. Unless tested immediately at the NR — Application Not Recommended site, the sample will require stabilization with a few drops of one Molar SS — Stainless Steel zinc acetate solution, allowing accurate sulfide determination up to 24 hours after sampling.A low pH and high alkalinity cause system prob- *Heat exchanger materials considered are copper, cupronickel, 304 SS lems,even when both values are within ranges shown.The term pH refers (stainless steel),316 SS,titanium. to the acidity, basicity, or neutrality of the water supply. Below 7.0, the tClosed recirculating system is identified by a closed pressurized piping water is considered to be acidic. Above 7.0, water is considered to be system. basic.Neutral water registers a pH of 7.0. **Recirculating open wells should observe the open recirculating design To convert ppm to grains per gallon, divide by 17. Hardness in mg/I is considerations. equivalent to ppm. ek 27 Control sequence of operation Carrier The WSHP Open multi-protocol controller will control through a network communication and the BAS schedul- mechanical cooling, heating, hot gas reheat and waterside ing function. • economizer outputs based on its own space temperature NOTE: Scheduling can only be controlled from one source. input and set points. An optional CO2 IAQ(indoor air qual- ity)sensor mounted in the space can maximize the occupant Global occupancy scheduling • comfort. The WSHP Open has its own hardware clock that The WSHP Open controller has the capability to read the is automatically set when the heat pump software is down- occupancy status from another unit so that a group of loaded to the board. Occupancy types are described in the WSHPs can be controlled from a single occupancy sched- scheduling section below. The following sections describe ule. The local Occupancy Schedules must be disabled in the functionality of the WSHP Open multi-protocol control- order to utilize the global occupancy input. ler. All point objects that are referred to in this sequence of NOTE:Scheduling can only be controlled from one source. operation will be referenced to the objects as viewed in the BACview6 handheld user interface. BACnet network occupancy input Scheduling The WSHP Open controller has the capability to accept an external BACnet Binary Network Input for occupancy con- Scheduling is used to start/stop the unit based upon a time trol. This function is only compatible with units used in period to control the space temperature to specified occu- BACnet systems. You will need to configure the "System pied heating and cooing set points. The controller is Occupancy" BACnet network input point to locate the defaulted to control by occupied set points all the time, device and point name where the external occupancy until either a Time Schedule is configured with the Equip- point information resides. Also Occupancy Schedules must ment Touchm interface, i-Vu®Open, or a Third Party con- be disabled in order to utilize this input. trol system Enables/Disables the BAS On/Off point. Your NOTE: Scheduling can only be controlled from one source. local time and date must be set for these functions to oper- ate properly. The occupancy source can be changed to Fire/smoke detector (FSD) input (field one of the following: optional) Occupancy schedules The WSHP Open controller has the capability to read the The controller will be occupied 24/7 until a Time schedule status of a NC FSD contact input to determine if a fire or has been configured using either, i-Vu Open, Equipment smoke detector alarm is present. If the controller deter- . Touch or a third party Enables/Disables the BAS On/Off mines an alarm condition is present, all heating, cooling point. This can be disabled by going to Config>Unit>Occu- and the fan are disabled. The normal state of the switch is pancy Schedules and changing the point from Enable to Dis- factory set to Normally Closed and cannot be changed. • able. Shutdown input NOTE: This point must be Enabled in order for i-Vu Open The WSHP Open controller has a shutdown input (soft or Bacview6 to assign a Time schedule to the controller. ware) which when set to its Active mode will cause the Schedule_Schedule WSHP to safely shut down in a controlled fashion. Heating The unit will operate according to the schedule configured and cooling will be disabled after any minimum runtime and stored in the unit. The schedule is accessible via the conditions expire and the fan will be disabled after the fan Equipment Touch user interface, i-Vu Open, or Field Assis- off timer expires. All alarms are reset but any active alarm tant. The daily schedule consists of a start/stop time (stan- will remain active. After the shutdown input transitions dard or 24 hour mode)and seven days of the week, starting from Active mode to Inactive mode, the WSHP Open con- with Monday and ending on Sunday. troller will restart after the configured power fail restart delay expires. Occupancy input contact (option) If configured for remote occupancy control (default), the Indoor fan WSHP Open controller has the capability to use an external The indoor fan will operate in any one of three modes dry contact closure to determine the occupancy status of the depending upon the user configuration selected. Fan mode unit. You will need to disable the Occupancy Schedules in can be defined/selected as Auto, Continuous, or Always order to utilize the Occupancy Contact Input. The control On. In Auto mode the fan is in intermittent operation will cause the unit to go into an occupied mode whenever during both occupied and unoccupied periods. Continuous the abnormal input is sensed. After the input returns to its fan is intermittent during unoccupied periods and continu- normal state, the unit will stay in the occupied mode for the ous during occupied periods. Always On operates the fan configured Occupancy Override Delay period (15 minutes continuously during both occupied and unoccupied peri- default). ods. In the default mode, Continuous, the fan will be NOTE: Scheduling can only be controlled from one source. turned on whenever any one of the following is true: BAS (building automation system) on/off • It is in occupied mode. Determined by its occupancy sta- tus. For use with a Building Automation System that supports • Whenever there is a demand for cooling or heating in the network scheduling, you will need to disable the Occu- unoccupied mode. pancy Schedules so the BAS system can control the unit • When there is a call for dehumidification(optional). 28 Carrier IMMed 1eeheNeein When power is reapplied after a power outage, there will Cooling be a configured time delay of 5 to 600 seconds before • starting the fan. There are also configured fan delays for The WSHP Open controller will operate one or two stages Fan On and Fan Off. The fan on delay defines the delay of compression to maintain the desired cooling set point. • time (0 to 30 seconds; default 10) before the fan begins to The compressor outputs are controlled by the PI (propor operate after heating or cooling is started while the fan off tional-integral) cooling loop and cooling stages capacity delay defines the delay time (0 to 180 seconds; default 45) algorithm. They will be used to calculate the desired num- the fan will continue to operate after heating or cooling is ber of stages needed to satisfy the space by comparing the stopped. The fan will continue to run as long as the corn- space temperature (SPT) to the appropriate cooling set pressors, heating stages, or the dehumidification relays are point. The water side economizer, if applicable, will be on. If the SPT failure alarm or condensate overflow alarm used for first stage cooling in addition to the compressor(s). is active; the fan will be shutdown immediately regardless The following conditions must be true in order for the cool of occupancy state or demand. ing algorithm to run: • Cooling is set to Enable Automatic 3-speed fan control • The Fire/Smoke Input and Shutdown modes are inactive The WSHP Open controller is capable of controlling up to • Heat mode is not active and the compressor time three fan speeds. The motor will operate at the lowest guard(s) have expired speed possible to provide quiet and efficient fan operation • Condensate Overflow input is Normal with the best latent capability. The motor will increase • Fan Status is true(if option is enabled) speed if additional cooling or heating is required to obtain • If occupied, the SPT is greater than the occupied cooling the desired space temperature set point. The control set point increases the motor's speed as the space temperature rises • Space temperature reading is valid above the cooling or below the heating set point. The • If unoccupied, the SPT is greater than the unoccupied amount of space temperature increase above or below the cooling set point. set point required to increase the fan speed is user configu- • If economizer cooling is available and active and the rable in the set point. Also, the control will increase the fan economizer alone is insufficient to provide enough cool- speed as the Supply Air Temperature approaches the con- ing. figured minimum or maximum limits. • OAT is greater than the Cooling lockout temperature if Fan speed control - during heating OAT is available • Condenser Water Pump is on(if condenser water linkage • Whenever heat is required and active, the control continu- active) ously monitors the supply air temperature to verify it does If all the above conditions are met, the compressors will be not rise above the configured Maximum Heating SAT Limit energized as required, otherwise they will be de-energized. (110°F default). As the SAT approaches this value, the If cooling is active and should the SAT approach the mini- control will increase the fan speed as required to ensure the mum SAT limit, the fan will be indexed to the next higher SAT will remain 5°F below the limit. This feature provides speed. Should this be insufficient and if the SAT falls fur the most quiet and efficient operation by operating the fan ther (equal to the minimum SAT limit), the fan will be at the lowest speed possible. indexed to the maximum speed. If the SAT still continues Fan speed control- during cooling to fall 5°F below the minimum SAT limit, all cooling stages Whenever mechanical cooling is required and active, the will be disabled. control continuously monitors the supply air temperature During Cooling, the reversing valve output will be held in to verify it does not fall below the configured Minimum the cooling position(either B or 0 type as configured)even Cooling SAT Limit(50°F default). As the SAT approaches after the compressor is stopped. The valve will not switch this value, the control will increase the fan speed as position until the heating mode is required. required to ensure the SAT will remain 5°F above the limit. The configuration screens contain the Min SAT parameter Fan will operate at lowest speed to maximize latent capac- as well as cooling lockout based on outdoor air tempera- ity during cooling. ture (OAT), both can be adjusted to meet various specifica- Fan status (option) tions. There is a 5-minute off time for the compressor as well as An optional input can be configured as either an occu- a 5-minute time delay when staging up to allow the SAT to pancy input contact or a fan status input. If configured as achieve a stable temperature before energizing a second fan status, the controller will compare the status of the fan stage of capacity. Likewise, a 45-second delay is used to the desired commanded state. The fan status sensor when staging down. must be field provided and installed. Whenever the fan is commanded to run(ON), the fan status will be checked and After a compressor is staged off, it may be restarted again verified to match the commanded state. If the fan status is after a normal time-guard period of 5 minutes and if the not on, then a fan status alarm will be generated after 1 supply air temperature has increased above the minimum minute and the equipment's compressor(s) and auxiliary supply air temperature limit. heat will be disabled and the optional OA damper will close - (if equipped). 29 Control sequence of operation (cont) ,Carrier Wed Technologies The WSHP Open controller provides a status input to The WSHP Open controller provides a status input to moni- monitor the compressor operation. The status is moni- tor the compressor operation. The status is monitored to - tored to determine if the compressor status matches the determine if the compressor status matches the commanded commanded state. This input is used to determine if a state. This input is used to determine if a refrigerant safety • refrigerant safety switch or other safety device has tripped switch or other safety device has tripped and caused the cor- • and caused the compressor to stop operating normally. If pressor to stop operating normally. If this should occur, an this should occur,an alarm will be generated to indicate the alarm will be generated to indicate the faulted compressor faulted compressor condition. condition. Also, if auxiliary heat is available (see below), the Reverse cycle heating auxiliary heat will operate to replace the reverse cycle heating and maintain the space temperature as required. The WSHP Open controller will operate one or two stages Auxiliary heat of compression to maintain the desired heating set point. The compressor outputs are controlled by the heating PI Single stage electric auxiliary heat (proportional-integral) loop and heating stages capacity The control can operate a single stage of electric heat installed algorithm. They will be used to calculate the desired num- on the discharge side of the unit in order to maintain the ber of stages needed to satisfy the space by comparing the desired heating set point should the compressor capacity be space temperature (SPT) to the appropriate heating set insufficient or a compressor failure occurs. Unless a compres- point. The following conditions must be true in order for sor fault condition exists, the heat stage will only operate to the heating algorithm to run: supplement the heat provided by the compressor if the space • Heating is set to Enable temperature falls more than one degree below the desired • The Fire/Smoke Input and Shutdown modes are inactive heating set point.The heat stage will be controlled so the SAT • Cool mode is not active and the compressor time guard will not exceed the Maximum Heating SAT limit and subject has expired to a two-minute minimum OFF time to prevent excessive • Condensate Overflow input is Normal cycling. Should the compressor(s) fail to operate and heating • Fan Status is true(if option is enabled) is required,the auxiliary heat will operate as required to main- • If occupied, the SPT is less than the occupied heating set tain the space temperature set point. point • Space temperature reading is valid Indoor air quality (IAQ) and demand con- - • If unoccupied, the SPT is less than the unoccupied heating trolled ventilation (DCV) set point If the optional indoor air quality sensor is installed or the net- ' • OAT is less than the Heating lockout temperature if OAT work input point "System Space AQ" is utilized, the WSHP = is available. Open controller can maintain indoor air quality, with a field- • Condenser Water Pump is on (if condenser water linkage installed modulating OA damper providing demand controlled active) ventilation. The control operates the modulating OA damper If all the above conditions are met, the heating outputs will during occupied periods. The control monitors the CO2 level be energized as required, otherwise they will be de- and compares it to the configured set points and adjusts the energized. If the heating is active and should the SAT ventilation rate as required. The control provides proportional approach the maximum SAT limit, the fan will be indexed ventilation to meet the requirements of ASHRAE specifica- to the next higher speed. Should this be insufficient, then if tions by providing a base ventilation rate and then increasing the SAT rises further and reaches the maximum heating the rate as the CO2 level increases. The control will begin to SAT limit, the fan will be indexed to the maximum speed. If proportionally increase ventilation when the CO2 level rises the SAT still continues to rise 5°F above the maximum above the start ventilation set point and will reach the full ven- limit, all heating stages will be disabled. tilation rate when the CO2 level is at or above the maximum During Heating, the reversing valve output will be held in set point. A user configurable minimum damper position the heating position(either B or 0 type as configured)even ensures that proper base ventilation is delivered when occu- after the compressor is stopped. The valve will not switch pants are not present. The IAQ configurations can be position until the cooling mode is required. accessed through the configuration screen. The following The configuration screens contain the Max SAT parameter conditions must be true in order for this algorithm to run: as well as heating lockout based on outdoor air temperature • Damper control is configured for DCV. (OAT),both can be adjusted to meet various specifications. • The Fire/Smoke Input and Shutdown modes are inactive. • There is a 5-minute off time for the compressor as well as Fan Status is true(if option is enabled). • a 5-minute time delay when staging up to allow the SAT to The unit is in an occupied mode. • achieve a stable temperature before energizing a second IAQ sensor reading is greater than the DCV Start Control e of capacity. Likewise a 45-second delayset point. stag e is used when staging down. The control has four user adjustable set points: DCV start After a compressor is staged off, it may be restarted again control set point, DCV Maximum Control set point, Mini after a normal time guard period of 5 minutes and if the mum damper position and the DCV Maximum damper supply air temperature has fallen below the maximum sup- position. ply air temperature limit. 30 Carrier • NOTE: In order for the damper to maintain proper base ven- Two-position water economizer control tilation, the fan must be configured to operate in either the The control has the capability to control a normally open • Continuous or Always On mode. or normally closed, two-position water valve to control Two-position OA damper condenser water flow through a coil on the entering air The control can be configured to operate as a ventilation side of the unit. damper in a 2-position ventilation mode to provide the Cooling minimum ventilation requirements during occupied peri- The purpose is to provide a cooling economizer function ods. This control operation still utilizes the modulating directly from the condenser water loop when the entering damper actuator. water loop temperature is suitable(at least 5°F below space Dehumidification with hot gas reheat temperature). If the optional coil is provided and the water (HGRH) loop conditions are suitable, then the valve will open to provide cooling to the space when required. Should the The WSHP Open controller will provide occupied and capacity be insufficient for a period greater than 5 minutes, unoccupied dehumidification only on units that are or should a high humidity condition occur, then the com- equipped with the factory-installed HGR option. This func- pressor will be started to satisfy the load. Should the SAT tion requires an accessory space relative humidity sensor. reach the Minimum Cooling SAT limit, the economizer When using a relative humidity sensor to control dehumidi- valve will close during compressor operation. fication during occupied or unoccupied times, the dehu- Heating midification set points are used accordingly. Additionally, the network input point "System Space RH" may also be Additionally, the economizer control will open the water used in place of the hard wired RH (relative humidity) sen- valve should the entering water loop temperature be suit- sor. When the indoor relative humidity becomes greater able for heating(at least 5°F above space temperature)and then the dehumidification set point a dehumidification heat is required. The valve will be controlled in a similar demand will be acknowledged. As long as heating or cool- manner except to satisfy the heating requirement. Should ing is not currently active, dehumidification will be ener- the coil capacity be insufficient to satisfy the space load for gized, bringing on the supply fan (medium speed), more than 5 minutes, then the compressor will be started mechanical cooling, and the integral refrigerant hot gas to satisfy the load. Should the SAT reach the Maximum reheat coil. The controls will engage cooling mode, start Heating SAT limit, the economizer valve will close during the compressor if not already operating, and waste heat compressor operation. from the compressor cooling cycle will be diverted to the Demand limit reheat coil. The reversing valve will be positioned to oper- ate the compressor in the cooling mode. If a call for sensi- The WSHP Open controller has the ability to accept three ble cooling takes place during hot gas reheat operation,the levels of demand limit from the BACnet network. In hot gas reheat is de-energized and the reheat operation is response to a demand limit, the unit will decrease its heat- turned off. Once the call for cooling has been satisfied and ing set point and increase its cooling set point to widen the if there is still a need for dehumidification, the unit will con- range in order to immediately lower the electrical demand. tinue to operate in a dehumidification mode with the com- The amount of temperature adjustment in response is user pressor providing cooling and the refrigerant reheat adjustable for both heating and cooling and for each energized. demand level. The response to a particular demand level Waterside economizer may also be set to zero. The WSHP Open controller has the capability of providing Power failure restart delay two-position waterside economizer operation (economizer The control provides a user configurable delay when recov- coil is mounted to the entering air side of the unit and con- ering from a power failure or SHUTDOWN mode or when nected to the condenser water loop) in order to be used to transitioning from unoccupied to occupied mode in order provide free cooling (or preheating) when water conditions to prevent excessive demand when many units start simul- are optimal. Water economizer settings can be accessed taneously. Each unit can be user configured for a unique through the equipment status screen. The following condi- delay between 5 and 600 seconds. The factory pro- tions must be true for economizer operation: grammed default delay is 180 seconds. • SAT reading is available. Fire/smoke detector alarm • EWT reading is available. • If occupied, the SPT is greater than the occupied cooling The control monitors the voltage input to J1-9 to detect if set point or less than the occupied heating set point and a smoke detector or fire detector Normally Closed contact the condenser water temperature is suitable. has opened, indicating an alarm condition. The control will • Space temperature reading is valid. verify the presence of 24 vac on this input. If the input • If unoccupied, the SPT is greater than the unoccupied should open at any time, an alarm will be generated after 3 cooling set point or less than the unoccupied heating set seconds and the equipment (fan, compressor, auxiliary point and the condenser water temperature is suitable. heat and damper) will immediately return to an OFF or closed state. 31 Control sequence of operation (cont) ;Carrier; Space temperature alarms Compressor status alarm . The control provides the ability to generate an alarm when- The control generates a compressor failure alarm should the ever the space temperature exceeds the alarm set point. A compressor status input detect the compressor is OFF after separate occupied hysteresis and fixed unoccupied high and the compressor output has been energized. A 6-minute low alarm set points are provided. The control provides a 5- alarm delay is used to allow the compressor to start (pre- minute alarm delay during unoccupied periods. During occu- vents alarms due to time guard operation) before an alarm pied periods, the control uses the occupied temperature set condition is detected. The control monitors the compressor points and applies the hysteresis value to determine the output and if the compressor output is energized, the corn- alarm set points. Whenever an occupancy transition from pressor status input must detect the compressor operation. unoccupied to occupied occurs or the occupied temperature set points are changed causing an alarm condition to occur, Filter status alarm the control will automatically calculate an alarm delay(equiv- The control provides the ability to generate a dirty filter alent to the configured delay time in minutes per degree F alarm after the number of fan run hours exceeds a configu- times the temperature error that occurred plus 15 minutes). rable filter alarm timer limit. The control monitors the fan This will prevent nuisance alarms whenever an occupancy output and if the fan is operating at any speed, it accumu- change occurs and allows time for the unit to correct an lates run time. Should the fan run time hours exceed the alarming temperature condition. configurable limit, an alarm is generated. To reset the Condenser water temperature alarm alarm timer after the alarm has been generated, a Reset Filter Alarm input is provided. The filter alarm can be dis- The control has 4 configurable alarm limits for condenser abled by setting the Filter Alarm Timer Delay to zero (fac- water temperature. The control will verify that the water tory default). temperature is within operating range (between high and low limits) for the specific operating mode (heating or cool- Indoor air quality alarm ing) before energizing the compressor. Once the compres- The control provides the ability to generate a high CO2 sor is started, the condenser water temperature is further level alarm during occupied periods whenever the CO2 monitored to verify that it is within limits to ensure sufficient sensor value exceeds the user adjustable limit. Whenever water is flowing through the coil. Should the leaving water an occupancy transition from unoccupied to occupied temperature rise above or fall below the appropriate limits, occurs, or the occupied alarm limit is changed to a value and alarm is generated and the compressor will be shut that causes an alarm condition to occur, the control will down if the condition occurs for more than 15 seconds. automatically calculate an alarm delay: • Supply air temperature alarm the configured delay time in minutes + 15 minutes The control has 2 configurable alarm limits for supply air ppm times the error that occurred temperature. The control will verify that the supply air tem- perature is within operating range (between high and low This prevents nuisance alarms from occurring when occu- limits)whenever the compressor or auxiliary heat is operat- pancy changes or the set point is changed. The IAQ alarm ing. Should the air temperature rise above or fall below the can be disabled by setting Occupied High IAQ Alarm Limit to appropriate limit, an alarm is generated if the condition zero. occurs for more than 1 minute. Relative humidity alarm High condensate/overflow alarm The control provides the ability to generate an alarm The control will monitor a discrete input to determine the whenever the space relative humidity exceeds the alarm set state of a condensate level switch. The input can be config- point. Separate occupied and unoccupied high humidity ured to alarm on either an open or closed switch condition. alarm set points are provided. The control provides a 5- Should this input be in an alarm state, the control will start minute alarm delay during unoccupied periods. During a timer and after the timer exceeds a configurable Conden- occupied periods, the controller uses the occupied high RH sate Overflow Alarm Delay limit (10-second default), the alarm limit. Whenever an occupancy transition from unoc- control will generate an alarm and the unit will disable the cupied to occupied occurs, or the occupied high alarm limit compressor and fan outputs. is lowered causing an alarm condition to occur, the control Fan status alarm (optional) will automatically calculate an alarm delay: the configured delay time in minutes + 15 minutes The control generates a fan status alarm should the fan sta- tus input detect the fan is OFF after any fan speed output % RH times the humidity error has been enabled. A 30-second alarm delay is used to condition that occurred allow the fan sufficient time to start operating before an This will prevent nuisance alarms whenever an occupancy alarm condition is detected. The control monitors the fan change occurs and allows time for the unit to correct an output and if the fan is operating at any speed, the fan sta- alarming humidity condition. tus must detect the fan is operating. a 32 (-Carrier i Condenser water linkage failure alarm (if NOTE: This alarm can only be reset by re-establishing link- condenser water linkage was active) age and correcting the condition that caused the linkage fail- ' ure to occur or by setting the SHUTDOWN point to Active The control generates a condenser water linkage failure momentarily. alarm should linkage fail after once being active. The link- .. age status is monitored and should it fail to be updated OAT sensor alarm (if network OA tempera- from the Loop Controller, then a Condenser Water Link- ture was active) age alarm is generated. A 6-minute alarm delay is provided The control generates an OAT sensor failure alarm should to prevent false alarm from occurring. the value of OAT fail to be updated through the Network NOTE:This alarm can only be reset by re-establishing linkage after once being active. The update status is monitored and and correcting the condition that caused the linkage failure to should it fail to be updated, then an OAT sensor alarm is occur or by setting the SHUTDOWN point to Active momen- generated. An alarm delay (approximately 1 hour) is pro- tarily. vided to prevent false alarm from occurring while minimiz- Airside linkage failure alarm (if airside link- ing the required update rate for OAT. age was active) NOTE: This alarm can be reset by setting the SHUTDOWN point to Active momentarily. The control generates an airside linkage failure alarm should linkage fail after once being active. The linkage sta- ZS sensor alarm (if ZS sensor was active) tus is monitored and should it fail to be updated from the The control generates a ZS sensor failure alarm should the Master Zone Controller, then an Airside Linkage alarm is ZS sensor fail to communicate with the control. The generated. A 6-minute alarm delay is provided to prevent update status is monitored and should it fail to be updated, false alarm from occurring. then the alarm is generated. 33 Guide specifications Carrier 0 llama beAnologles Packaged Water Source Heat Pumps 1.03 WARRANTY: HVAC Guide Specifications (Water Loop) The manufacturer shall warranty equipment for a periodSize Range: 6,100 to 64,000 Btuh from shipping of 12months from start-up or 18 months (whichever occurs first). The 9 Cooling Capacity manufacturer shall warranty the compressor for a 7,800 to 72,800 Btuh period of up to 5 years from shipping. Heating Capacity Part 2 — Product Carrier Model Number: 2.01 EQUIPMENT 50PCH, 50PCV A. General: Units shall be prewired and precharged in Part 1 — General factory. 1.01 SYSTEM DESCRIPTION B. Basic Construction: A. Install water source heat pumps, as indicated on the 1. Units shall have the airflow arrangement as plans with capacities and characteristics as listed in shown on the plans. If units with these arrange- the schedule and the specifications that follow. Units ments are not used, the contractor supplying shall be horizontal or vertical configurations. All the water source heat pumps is responsible for equipment shall be rated and certified in accordance any extra costs incurred by other trades and with ANSI/AHRI/ASHRAE/ISO (American must submit detailed mechanical drawings National Standard Institute/Air-Conditioning, Heat- showing ductwork requirements and changes or ing and Refrigeration Institute/American Society of relocation of any other mechanical or electrical Heating, Refrigerating, and Air-Conditioning Engi- system. If other arrangements make servicing neers/International Organization for Standardiza- difficult, the contractor must provide access tion) 13256-1. All equipment shall be tested, panels and clear routes to ease service. The investigated, and determined to comply with the architect must approve all changes 10 days requirements of the standards for Heating and Cool- prior to bid. ing Equipment UL-1995 for the United States and 2. All units shall have stainless steel drain pans to CAN/CSA-C22.2 NO.236 for Canada, by Intertek comply with this project's IAQ (indoor air qual- Testing Laboratories (ETL). The units shall have ity) requirements. Painted steel or plastic is not AHRI/ISO and ETL-US-C labels. acceptable. B. Units shall be supplied completely factory built and 3. The cabinet shall be fabricated from heavy gage capable of operation with an entering water tern- galvanized steel for superior corrosion protec- perature range from 50 to 100°F. Quality control tion. All interior surfaces shall be lined with system shall automatically perform via computer: tri- 1/2-in. thick, multi-density, coated, fiberglass ple leak check, pressure tests, evacuation and accu- insulation. Insulation must be non-combustible, rately charging of system, detailed heating and non-hydroscopic and anti-fungal. Insulation cooling mode tests, and quality cross checking all must meet NFPA 90A and 90B for fire protec- operational and test conditions to pass/fail criteria. tion as well as Fire Hazard classification 25/50 C. Units shall be individually packaged on wooden skid (per ASTM E84 and UL 723 and CAN/ULC with protective corner posts and plastic stretch S102-M88), ASTM C1071, erosion require- wrapping for maximum protection. ments of UL181 and be certified to meet 1.02 QUALITY ASSURANCE GREENGUARD indoor air quality standards for low emitting products. One blower access panel A. All equipment listed in this section must be rated in and two compressor compartment access pan- accordance with ANSI/AHRI/ASHRAE/ISO els shall be removable with supply and return 13256-1 performance standard, latest edition. The air ductwork in place. applicable units shall have a AHRI/ISO label. Stan 4. Unit shall have a floating compressor or pan dard cabinet panel insulation shall meet NFPA (National Fire Protection Association) 90A require consisting of a 1/2 in. thick high density elasto- (National air erosion and mold growth limits of UL- and pad between the compressor base plate 181, stringent fungal resistance test and the unit base pan to prevent transmission g g per ASTM of vibration to the structure. C1071 and ASTM G21, and shall meet zero level bacteria growth per ASTM (American Society for 5. Units shall have a 1-in. filter rack and 1-in. thick Testing and Materials) G22. throwaway type fiberglass filter as standard. Units B. All units shall be factory tested in all operating shall have an optional 2-in. thick pleated MERV 8 modes and safety switch operation shall be verified. filter (size 007-070) or MERV 13 filter (size 015 and larger)available. The filter rack shall incorpo- C. Serial numbers will be recorded by factory and fur- rate a 1-in. duct flange. The units shall have an nished to contractor for ease of unit warranty status. insulated divider panel between the air-handling section and the compressor section to minimize the transmission of compressor noise, and to per- ' mit service testing without air bypass. 34 Carrier • 6. Cabinets shall have separate holes and knock- 4. The finned tube heat exchanger shall be con- outs for entrance of line voltage and low voltage structed of lanced aluminum fins not exceeding control wiring. Supply and return water sixteen fins per inch bonded to rifled copper connections shall be brass female pipe thread tubes in a staggered pattern and will have a fittings and mounted flush to cabinet exterior. 600 psig working refrigerant pressure. The Connections that require a backup wrench or heat exchanger shall have aluminum end that extrude past the unit corner post are not sheets. acceptable. Condensate connection will be The finned tube heat exchanger shall have an stainless steel female pipe thread fittings. Plastic optional protective coil coating. This corrosion is not acceptable. protection shall consist of tin plated copper 7. Hanging brackets shall be provided as standard tubing with coated aluminum fins that must for horizontal units. pass 1,000 hours of ASTM B117 salt fog test- 8. Units shall have a short circuit current rating ing. Painted, dipped or e-coated heat exchang- (SCCR) of no less than 5kA. ers are not acceptable. C. Fan and Motor Assembly: 5. Reversing Valve: 1. The fan shall be direct-drive centrifugal forward Reversing valves shall be four-way solenoid acti- curved type with a dynamically balanced wheel. vated refrigerant valves that will fail in the heat- The housing and wheel shall be designed for ing operation should the solenoid fail to quiet low velocity operation. The blower hous- function. Reversing valves that fail to the cool- ing shall feature a removable inlet ring to facili- ing operation shall not be allowed. tate removal and servicing of the fan motor. 6. Coaxial (tube in tube) refrigerant-to-water heat The fan motor shall be 3 speed (208V, 230V, exchanger. Refrigerant-to-water heat exchang- 26V, or 460V)or 1 speed(575V), permanently ers shall be of copper inner water tube and steel lubricated, PSC (permanent split capacitor)type outer refrigerant tube design rated to withstand with thermal overload protection. 600 psig working refrigerant pressure and 400 2. Units rated 15,000 to 70,000 Btuh shall have psig working water pressure. Shell and tube an optional constant torque electronically com- style refrigerant to water heat exchangers shall mutated motor for premium fan efficiency. be treated as pressure vessels and shall require These motors shall feature 5 pre-programmed refrigerant pressure relief valves piped to the torque settings that can be changed in the field exterior of the building. The contractor supply- . to match design requirements. 460 v-3 ph-60 ing the water source heat pumps with shell and Hz units with these motors must be able to tube heat exchangers shall be responsible for operate without the need for a neutral wire for any additional installation costs. Brazed plate the motor. water-to-refrigerant heat exchangers shall 3. Blower shall have inlet rings to allow removal of require additional centrifugal separators added wheel and motor from one side without remov to the supply water piping at each unit. Each ing housing. separator shall have an automated clean out valve piped to a waste line. The contractor sup- 4. Units supplied without permanently lubricated plying water source heat pumps with brazed motors must provide external oilers for easy plate heat exchangers shall be responsible for service. any additional costs. 5. The fan and motor assembly must be capable of 7. Safety controls shall include both a high pres- overcoming the external static pressures as sure and low pressure switch. Temperature sen- shown on the schedule. sors shall not replace these safety switches. 6. The airflow/static pressure rating of the unit 8. Access fittings shall be factory installed on high shall be based on a wet coil and a clean filter in and low pressure refrigerant lines to facilitate place. field service. D. Refrigerant Components: 9. Activation of any safety device shall prevent 1. Units shall use R-410A refrigerant. All units compressor operation via a lockout circuit. The shall have a factory sealed and fully charged lockout circuit shall be reset at the thermostat refrigerant circuit. or at the contractor supplied disconnect switch. 2. Hermetic Compressor: Units which may be reset at the disconnect Hermetic rotary or scroll compressors shall be switch only shall not be acceptable. specifically designed for R-410A refrigerant and E. Controls and Safeties: shall be internally sprung (if reciprocating), 1. Electrical: externally isolated and with thermal overload a. Controls and safety devices will be factory protection. wired and mounted within the unit. Controls 3. Refrigerant metering thermostatic expansion shall include fan relay, compressor contac- valves or capillary tubes. tor, 24-v transformer, reversing valve coil, 35 Guide specifications (cont) Carrier • Uoikd Technologies and Unit Protection Module (UPM). The c. The UPM shall feature the following field standard transformer shall be rated for a configurable adjustments: - minimum 50 va. All units shall be name 1) Lock out reset on thermostat interrup- plated for use with time-delay fuses or tion or power reset. R HACR circuit breakers. Unit controls shall 2) Two or four restart attempts before a w be 24-v and provide heating or cooling as hard lockout. required by the remote thermostat/sensor. 3) Test mode (reduces all time delays to 5 b. Optional transformers shall be rated 75 va seconds for diagnostic work). and shall have a push button reset circuit 4) Antifreeze setting for low water tern- breaker on the secondary power. perature sensor. 2. Piping: d. Safety devices include: a. Supply and return water connections shall 1) Low pressure cutout set a 40 psig for be copper FPT fittings and shall be securely loss of charge protection (freezestat mounted flush to the cabinet corner post and/or high discharge gas temperature allowing for connection to a flexible hose sensor is not acceptable). without the use of a backup wrench. 2) High pressure cutout control set at 600 b. All water connections and electrical knock- psig. outs must be in the compressor compart- 3) Low supply water temperature sensor ment corner post to not interfere with the that detects drops in refrigerant tern- serviceability of unit. Contractor shall be perature that could result in water coax responsible for any extra costs involved in heat exchanger freezing. the installation of units that do not have this 4) Low air coil temperature sensor that feature. detects drops in refrigerant temperature 3. Unit Controls: that could result in air heat exchanger freezing. a. Solid-State Safety Circuit: 5) High level condensate sensor that shuts All units shall have a Unit Protection Module off the compressor if the condensate (UPM) safety control circuit with the follow- drain pan fills with water. ing features: 6) On board voltage detection that disables t 1) Anti-short cycle time delay (5-minute the compressor control circuit if there delay on break). are extreme variations in supply voltage. 2) Random start time delay on initial 4. Deluxe D Controls: power. Optional Deluxe D control package shall have 3) Brownout/surge/power interruption all the features of the Complete C control pack- protection. age with the following additional features: 4) 120 second low pressure switch bypass a. 75 va transformer. timer. 5) High refrigerant pressure shutdown. b. Pump-valve relay to enable a pump/valve 6) Low refrigerant pressure shutdown. operation when calling for compressor 7) Low water temperature shutdown operation. (adjustable for closed loop systems). c. Energy management switch to enable 8) Air coil freeze protection shutdown. remote operation of WSHP (water source 9) High condensate level shutdown. heat pump). 10) 24 vac alarm output for remote fault d. Phase monitor to protect the compressor indication. from operating in reverse rotation on three b. The UPM shall automatically reset after a phase units (460V/3Ph only). safety shutdown. Restart the unit if the cause e. Boilerless control shall activate an electric of the shutdown no longer exists (except for heater (internal or external unit) and disable low temperature and high condensate level compressor should water temperature drop shutdowns). Should a fault re-occur within below set point. Includes a relay and splitting 60 minutes after reset, then a "hard" lockout the power supply to the unit into a blower will occur. A light-emitting diode (LED) shall motor and control power supply and a com- annunciate the following alarms: brownout, pressor power supply. The relay(when ener- high refrigerant pressure, low refrigerant gized) deactivates the compressor control pressure, low water temperature and a high circuit. level of condensate in the drain pan. The 5. WSHP Open Multiple Protocol Control: LED will display each fault condition as soon as the fault occurs. If a hard lockout occurs, a. Units shall have all the features above (UPM) then the fault LED will display the type of and the state of the art WSHP Open multi- , fault until the unit is reset. ple protocol interface board will have the 36 C ca rr er ability to be viewed in the Equipment d. ZS Pro-F sensor with communication port, Touchm, System Touchm, or field assistant occupancy status indicator, local occupancy user interface. All point objects will have the override, set point adjustment, LCD display, ability to be viewed in the Equipment Touch alarm indicator, fan speed control, cooling/ user interface. The following points must be heating/fan only mode control and F to C available at a central or remote computer conversion. location: F. Factory-Installed Options: 1) Space temperature 1. Cupronickel coaxial water-to-refrigerant heat 2) Leaving water temperature exchangers shall be provided, with cupronickel 3) Discharge air temperature inner water tube construction. 4) Command of space temperature set point 2. Evaporator coil protection shall be factory 5) Cooling status installed with tin electro-plated copper tubing 6) Heating status and high-tech polymer coated aluminum fins to 7) Low temperature sensor alarm protect the air coil from all forms of corrosive 8) High pressure switch alarm elements in the airstream. 9) Fan on/off position of space thermostat 3. Sound attenuation (mute) package shall consist 10) Unoccupied/occupied command of high technology compressor blanket on sizes 11) Cooling demand 018 and above. 12) Heating demand 4. Extended range option shall consist of coaxial 13) Fan "ON/AUTO" command coil insulation to allow for operation with enter- 14) Fault prevention with auto reset ing water temperatures from 25 to 110°F. 15) Itemized fault code viewed with Equip- 5. Units shall have an optional 2-way electrically ment Touch interface operated shut-off valve mounted internally in b. Additional WSHP Open multiple protocol the unit cabinet. The two-way motorized sole- control features shall include: noid valve is rated for a 300 psig working pres- 1) Three-speed fan control. Controller shall sure. automatically, based upon space tern- 6. Units shall have an optional water flow regulat- perature input, operate the fan at the ing valve set to 3 gallons per minute of water lowest of 3 selectable speeds to achieve flow per nominal ton of refrigeration capacity. space temperature set point. 7. Hot Gas Reheat(HGRH): Units with a capacity 2) Two-position OA(outdoor air)damper above 12,000 Btuh shall be equipped with 3) Modulating OA damper with DCV optional hot gas bypass. On/Off HGRH shall (demand controlled ventilation) be controlled by a humidistat connected to the 4) Hot gas reheat solenoid valve unit H terminal and shall start the unit in the 5) Two-position water economizer control reheat mode should the humidity be above the 6) Modulating water economizer control set point once the thermostat control is satis- 7) Single stage electric auxiliary heat fied. Cooling or heating requirements shall take 8) Power fail restart delay precedent over HGRH. 6. Multiple-protocol WSHP Open controller 8. Hot Gas Bypass: Units shall be supplied with an remote ZS sensors for DDC (direct digital con- ETL listed modulating hot gas bypass valve with trots) control options. Only Carrier ZS sensors factory supplied and installed controls to pre- can be used with the WSHP Open controller. vent air coils from frost development by taking Sensors are available as follows, and all sensors hot gas and bypassing the water coil and expan- below offer monitoring of space temperature sion device and reintroducing the hot gas into only, or space temperature and CO2, or space the refrigeration line prior to the air coil. The temperature and humidity, or space tempera- ture and CO2 and humidity. hot gas bypass valve shall maintain a minimum refrigerant suction pressure to allow for a light a. ZS Standard sensor with a communication load cooling module or a low entering air tem- port. perature cooling mode. b. ZS Plus sensor with communication port, 9. Waterside Economizer: Waterside economizer occupancy status indicator, local occupancy shall be completely installed at the factory, with override and set point adjustment. an additional condensate drain pan, motorized c. ZS Pro sensor with communication port, 3-way valve, aquastat, and all internal electric occupancy status indicator, local occupancy controls. Waterside economizer shall be rated at override, set point adjustment, LCD (liquid 400 psig and UL (Underwriters Laboratories) crystal diode) display, alarm indicator and listed for applications with the heat pump. This fan speed control. option is externally mounted outside the unit. 37 Carrier Guide specifications (cont) ith United Technologies 10. Unit mounted disconnect: A non-fused factory consist of galvanized steel wire formed and mounted disconnect shall be installed on the constructed to support ceramic bushings • unit. through which the heating element passes. 11. Closed cell foam (CCF) shall be installed on Control cabinet shall be constructed of heavy interior surfaces of water source heat pump and gage galvanized steel with multiple knock- shall meet the density and compression require- outs for field wiring. Control cabinet shall ments of ASTM D 1056, the water absorption have a solid cover also of heavy gage galva- requirements of ASTM D-1667 and the tensile nized steel and held in place with hinges and and elongation requirements of ASTM D-412. tool-release latches. Closed cell foam shall meet the flammability b. Duct heater shall be supplied with primary requirements of FMVSS302 and UL 94. over temperature protection by built in disc G. Accessories: type automatic reset thermal cutouts and 1. Carrier commercial thermostat controls are secondary over temperature protection by available as follows: built in disc type manually resettable thermal cutouts. These devices must function inde- Edge® Pro 7-day programmable thermostat pendently of one another and are not offers 2-stage heat, 2-stage cool, remote con- acceptable if series connected in the control tact input, remote sensor capability, pre-occu- circuit wiring. A disconnecting magnetic pancy purge, soft start, manual/auto control circuit is required. All duct heaters changeover, 4 settings per day, 24 vac, backlit will require either a fan interlock circuit or an LCD, keypad lockout, no batteries required, 5- airflow switch. minute compressor protection, never lost mem- ory, 3 security levels, and temperature display c. Over current protection by means of factory in degrees F or C. installed fusing within the control cabinet shall be provided for heaters rated at more 2. Hose Kits and Valves: than 48 amps. Heating elements shall be All units shall be connected to main water sup- subdivided and fused accordingly. ply and return headers with hoses. The hoses d. All wiring, component sizing, component shall be 2 feet long, braided stainless steel rated spacing and protective devices within the con- - to 400 psig at 265°F. Hoses may contain trol cabinet shall be factory installed and corn- ' optional ball valves with P/T ports, Y strainers ply with NEC (National Electrical Code) and with blow down valves and/or auto flow regula- UL standards. All heaters shall function prop- • tors as specified in the schedule. erly with a 60 Hz power supply. 3. Electric Duct Heaters: e. A wiring diagram depicting layout and Ion- a. Duct heater shall be slip-in type and shall be nections of electrical components within the UL approved for zero clearance to combusti- control cabinet shall be affixed to the inside ble surfaces. The heater shall bear a UL/ of the control cabinet cover. CSA label. Control panel and element hous- f. A rating plate label shall be affixed to the ing shall be constructed of heavy gage galva- exterior of the control cabinet cover which nized steel. All heating elements shall be states model number, serial number, volts, made of nickel/chromium resistance wire amps, phase, frequency, control volts, volt- with ends terminated by means of staking amps and minimum airflow requirements. and heliarc welding to machine screws. Heating element support structure shall ti Y • 38 1 11 ti A A !Carrie Carrier Corporation•Syracuse,New York 13221 6-19 United TochnoloBles It Manufacturer reserves the right to discontinue,or change at any time,specifications or designs without notice and without incurring obligations. Pg 40 Catalog No.04-52500150-01 Printed in U.S.A. Form 50PC-13PD Replaces:50PC-12PD