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mec2192_l -Qoo ' l°75ca serectaiil P?Cry, Carrcer Product Data OFFICE COPY "° AquazoneTM Turn to the experts Compact Water Source Heat Pumps 1/2 to 6 Nominal Tons RECEIVED ,,IAN 19 2021 CITY OF TIGARD n n u A z o N E BUILDING DIVISION s'u alter 5 i Carder 50PCH, PCV 007-070 Compact Water Source Heat Pumps with Puron®Refrigerant(R-410A) ©2020 Carrier Corporation Form 50PC-14PD Features/Benefits Carried Carrier's Aquazone WSHPs Operating efficiency Puron® refrigerant(R-410A) are an efficient, compact Aquazone WSHP units offer cooling Puron refrigerant(R-410A) is a nonch- solution for new construction EERs (energy efficiency ratios) to 17.7 lorine based environmentally bal- and retrofit applications and heating COPs (coefficients of per- anced, non-ozone depleting formance)to 5.1. refrigerant. Puron refrigerant charac- Single-package horizontally and verti- All efficiencies stated are in accordance teristics,compared to R-22, have: cally mounted water source heat with standard conditions under ISO • Binary and near azeotropic mixture pumps (WSHPs) with compact cabinet (International Organization for Stan- of 50%R-32 and 50%R-125. and standard features: dardization) Standard 13256-1:1998 • Higher efficiencies (50 to 60% • Compact design allows for replace- and provide among the highest ratings higher operating pressures). ment of legacy WSHPs from Carrier in the industry. • Virtually no glide. Unlike other alter- and other manufacturers. High quality construction and native refrigerants, the two compo- • Cabinet constructed of heavy gauge testing nents in Puron refrigerant have galvanized steel to ensure long ser- All units are manufactured to meet virtually the same leak rates. vice life. extensive quality control standards. An Therefore, refrigerant can be added if • Interior panels feature an acoustical automated control system provides necessary. fiberglass lining for quiet operation. continuous monitoring of each unit and• Permanent split capacitor motors Large access panels for ease of performs quality control checks as maintenance and service. equipment progresses through the pro- (PSC) • Suitable for boiler/tower loop appli- duction process. An automated end of The standard motor for all 50PC cations with standard operating line run test verifies component func- model heat pumps is a PSC motor. For range of 50 F to 100 F entering tionality Units are produced in an ISO all models other than 575-volt units, 9001 production facility. thesupplied motor has 3-speed taps water temperature. p • Rotary (size 007-018) or scroll (size Cabinet for field adjustability. The 575V motor 024-070) compressors. Heavy gage galvanized sheet metal has a single speed tap. • Double isolated compressor mount- cabinet construction designed with Hanging brackets ing for quiet operation large access panels for easy mainte- All horizontal units come standard with • Non-ozone depleting Puron refriger- nance and service. Cabinet interior sur- hanging bracket kits for suspending the ant (R-410A) faces are lined with 1/2 in. thick, 11/2 unit from field-supplied hanger rods. • Direct drive fan assembly with Per- lb fiberglass insulation. Sheet metal sur- These kits include heavy duty steel manent Split Capacity (PSC) motor faces are treated for maximum corro- brackets and rubber grommets for for reliable operation. slim protection to provide resilience for sound and vibration isolation from the long term vitality. Compact cabinet building structure. • Factory installed unit protection dimensions fit tight space limitations in module(UPM)ensures reliable oper- both horizontal and vertical configura- Water connections ation and simplifies troubleshooting. tions. All water connections are heavy duty • Manufactured in an ISO 9001 certi- Compressor bronze FPT fittings securely fastened to fied facility. the unit corner post. This allows con- Compact Aquazone units include a necting to a flexible hose kit without rotary compressor in sizes 007-018 the use of a backup wrench making for and a scroll compressor in size 024- easier,faster installation. 070 units. Compressors are mounted on a double isolated system (i.e., from the cabinet) that maximizes vibration isolation and minimizes transmission to the unit structure. 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 18 Electrical Data 22 Application Data 24 Control Sequence of Operation 28 Guide Specifications 33 2 (arrie� 1 Refrigeration/water circuit Design flexibility The blower housing assembly can be 1 All units have a sealed refrigerant cir- Airflow configurations for horizontal serviced without disconnecting cult including a high efficiency rotary units are available in patterns including ductwork from the dedicated blower or scroll compressor. Simplified refrig- left or right return or straight through access panel. Blower units come with erant circuits provide easy mainte- or end discharge. Horizontal units are permanently lubricated bearings for nance, higher accuracy and excellent field convertible between straight worry free performance. Blower 'inlet performance. Also, standard are a through (left or right) discharge and rings allow blower wheel removal with- reversing valve (4-way valve), water-to- end discharge. Vertical units are avail out having to remove the housing or refrigerant coaxial (tube-in-tube) coil, able in left or right return with top dis ductwork connections. and enhanced aluminum fin/rifled cop- charge. Other combinations may be Electrical disconnection of the blower per tube air-to-refrigerant heat available as a special order. Standard motor and control box is easily accom- 1 exchanger coil. water temperature range between 50 plished via quick disconnects on each 1 AHRInsO and 100°F offers maximum design flex- component. Aquazone units have AHRI(Air-Condi- ibility for boiler/tower applications. Easy removal of the control box from q ( Water flow rates as low as 2.5 gpm per the unit provides access to all refrigera- tioning, Heating, and Refrigeration ton assist with selection from a various tion components. Institute)/ISO, NRTL (Nationally Rec- range of circulating pumps. Factory- . The refrigeration circuit is easilytested ognized Testing Lab), or CSA (Cana- installed options are offered to meet g dian Standards Association) labels and specific design requirements. and serviced through high and low are factory tested under normal operat- pressure ports integral to the refrigera- ing conditions at nominal water flow Safe, reliable operation tion circuit. rates. Quality assurance is provided via Standard safety features for the refrig- Maximum control flexibility testing report cards shipped with each erant circuit include a high-pressure All Aquazone water source heat pumps d unit to indicate specific unit perfor- switch, low-pressure sensor to detect feature a factory installed and config mance under cooling and heating refrigerant loss. Equipment safety fea- ured unit protection module (UPM), modes. tures include water loop temperature monitoring, voltage protection, water which regulates unit operation, fea Quiet operation coil freeze protection, and standard tures integrated safeties, and simplifies All 50PC units have a unique floating electronic condensate overflow shut- unit troubleshooting. basepan; the compressor is mounted down.All safety features are tested and The UPM provides control of the unit on a heavy steel plate which rests on a run at the factory to assure proper compressor, reversing valve, fan, safety 1 high density rubber pad on the base of operation of all components and safety features, waterside economizer and hot the unit. In addition, compressors are switches. gas reheat control. It also provides trou- I mounted on rubber grommets. This bleshooting fault indication features. s double isolation is standard in all 50PC All components are carefully designed Additional features and functions of the units preventing vibration and noise a nd selected for endurance, durabil- UPM include: transmission from the compressor to ity, and carefree day-to-day opera the unit structure, resulting in excep- tion. Anti-short cycle timer tionally quiet operation. The Aquazonetm unit is shipped to pro- Provides a minimum off time to prevent Cabinets are fully insulated to reduce vide internal and external equipment the unit from short cycling.The 5-minute noise transmission, low speed blowers Protection. Shipping supports are timer energizes when the compressor is are used for quiet operation through placed under the blower housing. In deenergized, resulting in a 5-minute reduced outlet air velocities, and air to addition, horizontal and vertical units delay before the unit can be restarted. refrigerant coils are designed for lower are both mounted on oversized pallets Random start relay airflow coil face velocities. A mute with lag bolts for sturdiness and maxi- airflow is also available for extremelymum protection during transit. Provides a random delay in energizing package each different WSHP unit. This option noise sensitive applications. Ease of installation minimizes peak electrical demand Indoor Air Coil The Aquazone unit is packaged for during start-up from different operating All units come standard with a copper simple low cost handling and requires modes or after building power outages. tube, aluminum-fin air coil. These air minimal installation. All units are pre- Each controller has a unique random coils employ lanced fin and rifled tub- wired and factory charged with refrig- start delay ranging from 270 to 300 erant. Horizontal units include factory- seconds after power is applied to the ing for maximum heat transfer. Large installed hanger isolation brackets. board. face areas result in lower face velocity Water connections (FRO and conden reducing sound while ensuring high sate drains(FPT)are anchored securely High and low pressure refrigerant latent heat removal for maximum protection dehumidification in the cooling mode. to the unit cabinet. Simple maintenance and Safeguards against unreliable unit i Thermostatic Expansion Valve operation and prevents refrigerant serviceability from leaking. All 50PC units are equipped with a thermostatic expansion valve (TXV) The Aquazone WSHP units are con metering device to ensure reliable structed to provide easy maintenance. operation across a wide range of enter- All units allow easy access to the com- pressor section from 2 sides with large ing air and water temperatures. removable panels. Additional panels allow access to the blower and control box sections. I , 3 1 l Features/Benefits (cont) , Carrier Condensate overflow sensor Alarm relay setting flow, and control status via a LED Sensor is an electronic sensor mounted Is a selectable 24-v or pilot duty dry panel. to the drain pan. When condensate contact for activating a remote alarm. Lockout reset pan liquid reaches an unacceptable Low pressure bypass timer Can be accomplished by turning the level, the unit is automatically deacti- unit thermostat off and then back on or vated and placed in a lockout condi- The low pressure switch is bypassed for by shutting off unit power at the circuit tion. The sensor recognizes 30 120 seconds after a call for compres breaker. The method of reset is select continuous seconds of overflow as a sor operation to prevent nuisance low able by the DIP switch on the unit con fault condition. pressure lockouts during cold start-up trol board. High and low voltage protection in the heating mode. Service Test mode with diagnostic Complete C Control Package Provides safety protection from exces LED (light-emitting diode) The Complete C control package is the sive or low voltage conditions. standard control package for all 50PC Automatic intelligent reset Allows service personnel to check the units and includes the following: operation of the WSHP and control sys- Will Will automatically restart unit 5 min- tem efficiently. Upon entering Test •• Unit Protection t o Module(UPM)230V utes after shutdown if the fault has mode,time delays speed up,and the Sta- ppto cleared. Should a fault occur 2-4 times tus LED flashes a code to indicate the last for all 208V/230V units). sequentially (field selectable), lockout fault experienced. This mode provides • Factory labeled terminal strip ther- will occur. easy fault diagnosis; based on the fault mostat input for field provided ther- Water coil freeze protection code that the status LED flashes. Carrier mostat or DDC control (selectable for water or antifreeze) troubleshooting tables provide easy refer • Factory provided wiring diagram ence to typical problems. affixed to the control enclosure Provides a field selectable switch for LED visual output access panel. water and water/glycol solution systems which initiates a fault when Indicates high pressure, low pressure, temperatures exceed the selected limit low voltage, high voltage, air/water for 30 continuous seconds. freeze protection, condensate over- 4 Model number nomenclature c 50PCH 024 B C C 3 E 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 1/2 024— 2 042 — 3 1/2 A— Extended Range(25 to 110 F) 007 — 007— 13/2 024 — 2-1/2 042 — 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 Vertical Airflow Configuration D — Revision D J — Left Top Constant Torque ECM E — Revision E K— Right Top Constant Torque ECM L — Left Top PSC R— Right Top PSC Voltage 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 Refrigerant Circuit Options ECM —Electronically Commutated Motor 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 (Carrie 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 N/A N/A N/A N/A 330 2.5 Horizontal 009 8,150 12.40 10,700 4.70 8,700 14.40 6,900 3.20 330 2.5 Vertical 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 PSC 024 24,300 14.20 27,400 5.00 N/A 25,400 16.90 18,100 3.55 800 6.0 030 28,200 13.40 32,600 4.70 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 2000 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 ANSI/AHRI/ASHRAE/ISO 13256-1 with 1-in. COP - Coefficient Performance Fdo specifiec filter.on EER - EnergyEfficiencyRatio 2. For specific configuration ratings, refer to WSHP Builder in Carrier ECAT. ISO - International Oranization for Standardization 3. Vertical/Horizontal airflow. NA - Not Applicable 4. Ground Loop Heat Pump ratings require an extended range option. 5. Certified in accordance with ANSI/AHRI/ASHRAE/ISO 13256-1. CERTIFIED,. www.ahridirectory.org Water Source HP ANSI/AHRI/ASH RAE/IS013256-1 6 Physical data (Carrier PHYSICAL DATA- 50PCH,PCV(007-070) UNITS 50PCH,PCV UNIT 007 I 009 I 012 I 015 I 018 024 I 030 COMPRESSOR(1 each) Rotary Scroll Maximum Water Working Pressure(psig) 400* PSC Fan Motor and Blower Fan Motor Type PSC Fan Motor(hp) 1/10 Vs 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) 1/10 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 Coaxial Coil Volume(gal.) 0.06 Cu:0.06 Cu/Ni:0.08 0.08 0.09 0.14 0.24 0.24 Condensate Connection in.FPT 3/4 VERTICAL CABINET Cu:19 Typical Refrigerant Charge(oz) 16 19 21 CuNi:19 22 Cu:35 (captube)/17 CuNi: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(L x H) 10 x 16 16 x 20 20 x 20 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) 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 (L x H)(in.) 10 x 16 16 x 20 16 x 25 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) /2 3/4 I 1/2 I 3/4 Blower Wheel Size(Dia xW)(in.) 9x7 10x8 I 10x9 I 11 x9 Constant Torque Fan Motor and Blower Fan Motor Type Constant Torque Fan Motor(hp) V1 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 Typical Refrigerant Charge(oz) Cu:44 CuNi:40 38 Cu:43 CuNi:39 52 59 64 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) (L x H)(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 Cu:43 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) (L x H)(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 design revision. N/A - Not Applicable PSC - Permanent Split Capacitor 7 Options and accessories Cecil-ffe FACTORY- FIELD- dehumidified. The cool, dehumidified air then passes ITEM INSTALLED INSTALLED through the reheat coil where it is heated to a neutral tern- OPTION ACCESSORY perature (typically 68°F to 78°F). The neutral, dry air is Cupronickel Heat Exchanger x then delivered to the space and reduces space humidity lev- Air Coil Protection x els without cooling the space. See WSHP Builder for Extended Range Units X HGRH performance. .� Hot Gas Reheat X Hot Gas Bypass X Hot gas bypass Waterside Economizer X It prevents icing of the air coil when the unit is operating at Sound Attenuation Package X low cooling load conditions. The hot gas bypass valve Constant Torque ECM x located in the compressor discharge line diverts hot gas to Two-Position Water Valve x the inlet of the air coil. The valve is factory set to open Complete C Control Package x when the evaporating pressure falls to 90 psig and will Deluxe D Control Package x modulate to prevent the pressure falling any lower. This WSHP Open Multi-Protocol X setting is field adjustable and this set point may be adjusted Controller as required. WSHP Open Equipment X TouchTM Device Waterside economizer WSHP Open System TouchTM X It is available and allows for free cooling for applications Device where the water loop temperature is able to reach tern- WSHP Open ZS Sensor x peratures between 40 and 65°F. When the loop is cold Supply and Return Water x enough, the waterside economizer acts as a chilled water Hose Kits coil, providing free cooling without the use of the compres- Electric Duct Heaters x sor (no mechanical cooling). The water leaving the econo- Edge®Pro 7-Day mizer coil is then directed to the unit coaxial coil, which Programmable Thermostat x Factory-installed options can allow compressor operation in integrated economizer cooling applications. Cupronickel heat exchangers The factory-installed waterside economizer coil is mounted They are available for higher corrosion protection for external to the air coil as shown below. The waterside applications such as open tower, geothermal, etc. Consult economizer is controlled by the factory-supplied and the water quality guidelines for proper application and installed aquastat. The aquastat is factory wired to the unit selection of this option. control board, and has a field adjustable range of—30°F to Air coil protection 100°F, with recommended settings of 45°F for cooling. A ship- This option offers tin electro-plated copper tubingwith remote sensing bulb is stored inside the WSHP for p p pp ping and requires field installation. high-tech polymer coated aluminum fins will protect the air coil from all forms of corrosive elements in the airstream. WATERSIDE ECONOMIZER Air coil protection is recommended for primary residence applications to protect against formicary corrosion. IIIII II C„ iilulpllllpl Ilplllll'll e is. Extended range units iiillt[iilllplllllllllll • This option insulates the coaxial coil to prevent condensa- uiuuiu4iMOnun ; tion,and therefore potential dripping problems,in applica- Ilfll, IHulu1 tions where the entering water temperature is below the ;;IllullpllllllnlllllI normal operating range(less than 50°F). Units are capable qu°ju°ugi01 of operating at a range of 25 to 110°F. Thermostatic expansion valves (TXVs) come with the optional extended li ------ range units and are designed to vary the flow of refrigerant t/ �(I)� depending on the load. The TXVs provide unit optimiza- t ,a tion and more stable control over a wider range of operat- ` 0 ing conditions. `NI Hot gas reheat(HGRH) HGRH is an efficient and effective method of providing space humidity control. HGRH allows the unit to dehumid- ify the space when there is no demand for space cooling Water flow through the waterside economizer is controlled without the need for additional energy consuming devices. by a factory installed and wired 3-way motorized valve. The HGRH package is factory installed and includes a When the waterside economizer is active (based on the HGRH coil (installed behind the indoor air coil, a HGRH aquastat set point), flow is through the waterside econo- control valve, and additional refrigerant piping. The mizer coil and then through the coaxial coil. When HGRH coil is factory sized to maximize performance. mechanical cooling is active (when the water loop tern- When the space temperature is satisfied but the space perature is outside the aquastat set point), water flow is humidity is above the desired set point, a call for dehumidi- the coaxial coil only. fication is initiated and the unit fan, reversing valve, HGRH Waterside economizer capacity and performance data can valve, and compressor are enabled.The fan draws in warm be seen in the WSHP Builder selection software. humid air through the indoor air coil where is it cooled and 8 Carriers WATERSIDE ECONOMIZER APPLICATION 3-Way Motorized Ball Valve Waterside -I I- N.O. N.C. Economizer Coil Aquastat 1 Fluid to refrigerant MBV heat exchanger N.O. 0 Fluid In IYI "Bulb Strapped Positive shut-off solenoid valve to Fluid" for variable speed pumping system in line(field-installed) (field-installed) the coaxial heat exchanger only when there is a call for Sound attenuation packages (mute package or cooling or heating. Closing off fluid flow to the unit when closed cell foam) there is no call for cooling or heating reduces system oper- ating costs, when using variable speed pumping, by reduc- Available for applications that require especially low noise ing the speed of the primary loop pumps. levels. With the mute package option, a compressor sound Deluxe D control package blanket is added to reduce compressor sound output. With the closed cell foam option, the entire unit cabinet is lined Provides all of the options on the standard Complete C with high density closed cell foam insulation to reduce the control package in addition to the following: fan and compressor sound output. • Phase Monitor - Prevent motors from running at tern- Constant torque ECMs peratures above approved ratings, and provides protec- Optional on sizes 015-070 and provide the efficiency and tion against phase loss, phase reversal, and phase operability of an ECM at a lower cost than a constant air- imbalance. flow ECM. Constant torque ECMs provide 5 available • Boilerless Control - For use when the desired means of motor speed taps and will maintain a constant motor heating is an electric heater, and no boiler is installed in torque as external static pressure in the system increases. a water loop system. As the system static pressure increases, reduction in fan • Energy Management Switch-Enables a 24 vac external airflow with a constant torque ECM is minor. signal to control the operation of the WSHP. Two-position water valve • Pump-Valve Relay - Provides a signal between an isola- Optional on all unit sizes and is a great energy savings tion valve and a secondary pump. option. The valve opens to allow 100%fluid flow through • Larger transformer- 75 va transformer. 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 WSHP Open controller Intuitive fault detection Continuously monitors and regulates water source heat Allows prolonged operation of the WSHP. The pre-pro- pump operation with reliability and precision. This grammed WSHP Open controller logic monitors and pre- advanced controller features a sophisticated, factory-engi- emptively shuts down a WSHP as an alarming condition neered control program that provides optimum perfor- approaches instead of causing a hard lockout of the mance and energy efficiency. WSHP. This way, the WSHP can automatically restart if The WSHP Open controller is factory installed and pro- the fault condition clears within a set amount of time and a grammed to control all factory-installed standard options local reset of the WSHP is not required. including hot gas reheat and waterside economizer as well Learning adaptive optimal start as provide boilerless electric heat control and demand con It transitions the WSHP from unoccupied set points to trolled ventilation. occupied set points in the most efficient means possible. The WSHP Open controller is programmed to communi- Over time, the WSHP will learn and determine the best cate with different protocols including BACnet, N2,Modus adjustment rates of the set points to provide the most effi- and LonWorks. While the controller is programmed to cient means of shifting the WSHP 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 TouchlM LonWorks. These touchscreen devices have a color LCD display that Independent three-speed fan control allows easy connection to the controllers to view or change provides the most efficient WSHP operation. All WSHP the controller's property values including set points, sched- ItOpen controllers come programmed from the factory with Equipmentule equipment, view trends and ealasy connections and more. Te 3-speed fan control, with user selectable low, medium and conrTouch dSys e prTouches devi ccce to one high fan speeds. Using the space temperature input, the 60controller while the System Touch device can access up to WSHP Open controller will automatically operate the fan details controllers when uipd enttog Tourch hs a network. For moreh at the optimal speed to maintain space temperature while vie about the Equipment Touch and System Touch providing increased latent heat removal, reduced sound devices, see either the Equipment Touch or System Touch and the lowest fan energy consumption. Installation and Setup Guide. Three-speed fan control is available only with constant WSHP Open torque ECM and PSC fan motors. ZS sensors are the preferred method of monitoring space temperature, humidity and CO2 levels when using the WSHP Open controller. NOTE: The ZS sensor is required for space temperature with all WSHP Open controllers. Only a ZS sensor can provide the necessary space temperature input for the WSHP Open controller. ZS SENSOR FEATURES ♦ 4 -114 68' • 6 • ♦ 0 • • FEATURES 0 0 0 0 • O O O O % •F -• 0 O O ® - 41010 grits - ® 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 (�Ca Carrier ZS SENSOR OPTIONS OPTIONS ZS STANDARD ZS PLUS I ZS PRO ZS PRO-F Part Number Temperature Only ZS2-CAR ZS2PL-CAR ZS2P-CAR ZS2PF-CAR Temperature with CO2 ZS2-C-CAR ZS2PL-C-CAR ZS2P-C-CAR ZS2PF-C-CAR Temperature with Humidity ZS2-H-CAR ZS2PL-H-CAR ZS2P-H-CAR ZS2PF-H-CAR Temperature with Humidity and CO2 ZS2-HC-CAR ZS2PL-HC-CAR ZS2P-HC-CAR ZS2PF-HC-CAR Supply and return water hose kits Edge® Pro 7-day programmable thermostat Available as accessories. Hose kits are recommended for Available for connecting a unit directly to a wall mounted connection between the unit and the water loop piping. thermostat. The Edge Pro thermostat offers 2-stage heat, Hose kits are 24 inches in length, flexible stainless steel 2-stage cool, remote sensor capability, pre-occupancy and have options for manual isolation valves with and with- purge, soft start, manual/auto changeover, 4 settings per out autoflow regulators and Y-strainers. day, 24 vac, backlit LCD, keypad lockout, no batteries Electric duct heaters required, 5-minute compressor protection, never lost memory, 3 security levels, and temperature display in Available ranging from 5 to 20 kW of electric heat in all degrees F or C. available WSHP voltages. These slip-in type heaters pro- vide an extra means of auxiliary heat or reheat control. EDGE PRO THERMOSTAT ELECTRIC DUCT HEATERS SLIP-IN HEATER '1 II 60 _ WRAPPER HEATING Jib ELEMENTS TERMINAL OR CONTROL BOX 11 Dimensions (Carrier ) 50PCH UNIT Back Discharge Return Air D Opening Return Air '/Opening I� M i ') RT K J K Condensate ` `00� N I `p/ Drain Left I Water Return �r Connections g Condensate B I�\ G A Drain \I II A ' Compressor 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. Return Air Return Air D Opening Opening /1 R .001 Condenser K Water Out to4101 / N \/� ICondenser " Condensate Condensate v IWater In Drain B Drain \ / B A A II I/ Right Hand Return,Back Discharge Right Hand Return,Left Discharge Service Clearances(Top View) Air Coil Electrical Control Blower Access Box Compressor Access and LEGEND --► 18"Minimum 4 Q -1 Control Access 4- R/A -Return Air 24"Optimum - 24"Minimum Blower 36"Optimum - -I- - Compressor 50PCH007-070 UNITS A B C D E F G H J K M N P Q R T CAB CONDENSER RECOMMENDED 50PCH CAB SIDE R/A R/A FRONT TOP END TOP FILTER WATER REPLACEMENT UNIT END TO WATER WATER TO DISC. DISC. DUCT WIDTH' DEPTHt HEIGHT DUCT TO TO TO TO RACK CONNECTIONS NOMINAL FILTER SIZE 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. NOTES: t When WSHP Open controller is installed increase depth by 2.6 inches.When waterside econ- 1. All dimensionsnatdrain are wicon connections 0.125 inch. omizer is instated,increase depth by 7 inches. 3. All condensate 70annbe fields are 3/4td FPT. 3. Unit sizes 015-070 can be field converted between end blow and straight through dis- "50PCH015 units built with ECM motor option. charge air configurations. 4. Specifications subject to change without notice. 5. The 1-in.filter rack extends 1.23-in.beyond the side of the unit.The 2-in.filter rack extends 2.89-in.beyond the side of the unit.The 2-in.filter rack is 4-sided with a filter access door on one end and can accept either a 1 in.or 2-in.filter.When a waterside economizer is installed the filter rack will be a 2-sided filter rack only. 6. Return and discharge orientations determined when facing panel with water connections. II 12 Carrier 50PCV UNIT E G F E \ alif _r~M-�Access40444,1D � i Panels i. .IF `C I Condenser IWater Out, 1 CondenserWater In teElectricalConnectionsA q Left Hand Return Right Hand Return Return Air(Filter)View I I A Blower Blower Access I 18"Minimum f R /24"Optimum C 0 I L Compressor Access and Electrical/Control Access Compressor i'"24"Minimum LEGEND 36"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 CABINET LEFT CONDENSER RECOMMENDED CONDEN- R/A R/A DUCT FILTER WATER REPLACEMENT UNIT WIDTH` DEPTHt HEIGHT DISC. DISC. EDGE SIDE WATER WATER SATE DUCT FLANGE RACK 0 CONNECTIONS NOMINAL FILTER SIZE DEPTH WIDTH TO TO INLET OUTLET DRAIN WIDTH HEIGHT HEIGHT FPT SIZE DISC. DISC. 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 t 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. NOTES: t When WSHP Open controller is installed increase depth by 2.6 inches.When waterside 1. All dimensions are within±0.125 inch. economizer is installed,increase depth by 7 inches. 2. All condensate drain connections are 3/4 in.FPT. '"50PCV015 units built with ECM Motor Option. 3. Specifications subject to change without notice. 4. The 1-in. filter rack extends 1.23-in.beyond the side of the unit. The 2-in.filter rack extends 2.89-in.beyond the side of the unit.The 2-in.filter rack is 4 sided with a filter access door on one end and can accept either a 1-in.or 2-in,filter.When a waterside economizer is installed the filter rack will be a 2-sided filter rack only. 5. Return and discharge orientations determined when facing panel with water connections. 6. The local electric codes may require 36 in.or more clearance at the electrical control box. 13 Dimensions (cont) Carrie) 50PCV WITH FACTORY-INSTALLED DISCONNECT -) RIGHT RETURN FRONT VIEW TOP VIEW i B II 0'11i i °1 i 1 i O 0.26 1.95 ° _ () 1.82 1 DISCONNECT 7.18 2.19 „ - 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 . • A B ■ * 1 ill . 1 I 111 o 1 ^ O 1.95 r -. C) -- L 1 1.82 v DISCONNECT / 0.26 7.18 0 0 i , 2.}19 A - I 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. 15 Dimensions (cont) (Carrie 50PCV WITH WATERSIDE ECONOMIZER TOP VIEW; RIGHT RETURN 50PCV WITH WATERSIDE ECONOMY RIGHT RETURN,TOP DISCHARGE 1 ° ° I ° � E ° ° C I ° ° `1 I D 1 I � � � ,. 9 .. 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 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 IMTH WATERSIDE ECONOMIZER LEFT RETURN,TOP DISCHARGE a I � ° i �; ° I I I E i ii C i ° 1 � D Ii _.._-1 I 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 Performance data (,,,, arrie:) 50PCH007-070 CORNER WEIGHTS (LB) 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 . ( c,arrier Please see the WSHP Builder for cooling and heating per- formance data. ANTIFREEZE CORRECTION TABLE COOLING HEATING WPD ANTIFREEZE CORRECTION ANTIFREEZE% EWT 90°F EWT 30°F 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 Glycol 15 0.990 0.990 1.009 0.978 0.988 1.190 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 10 0.996 0.996 1.005 0.979 0.993 1.100 Methanol 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 10 0.996 0.996 1.004 0.960 0.988 1.230 Ethanol 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 (cont) carrier 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 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 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 Carrier ' 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 Electrical data Carrie 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 35 208/230-1-60* 197/253 1 15.4 83.9 4.40 0.50 19.80 23.7 35 036 265-1-60 238/292 1 11.6 72.0 3.60 0.50 15.20 18.1 40 208/230-3-60 197/253 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 15 042 208/230-1-60 197/253 1 16.2 109.0 4.40 0.50 20.60 24.7 40 460-3-60 414/506 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 *Data for units produced on or after week 46 of 2019. FLA -Full Load Amps HACR -Heating,Air-Conditioning and Refrigeration C (a)us LRA -Locked Rotor Amps RLA -Rated Load Amps „moo Intertek 22 `arrier 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 1 c 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 40 208-230/1/60 197/253 1 15.4 83.9 4.1 0.50 19.5 23.4 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 HACR -Heating,Air-Conditioning and Refrigeration LRA -Locked Rotor Amps CGUs RLA -Rated Load Amps Intertek 23 Application data (arrie� Aquazonem water source heat pumps are available in a flexi- leaves the building. An additional heat exchanger is usually ble,efficient array of models,which can be used in all types of installed between the building water piping system and the water loop, ground water, and ground loop type systems. ground water piping system. This design limits the amount Aquazone products provide optimal energy efficient solutions of piping and excavation required. and adapt to the most challenging design requirements. Aquazone units are available with an extended range Water loop system option for open or closed loop systems. To conserve water Water loop (or boiler/tower) system applications typically on this type of system, a slow opening/closing solenoid include a number of units plumbed to a common piping valve is recommended. Depending on loop water tempera system. For optimal performance, this system should be tures,a water regulating valve may be needed. designed between 2.25 and 3 gpm per ton of cooling Ground loop systems capacity. The system is comprised of highly efficient pack- There are many commonly specified designs for ground aged reverse cycle heat pump units interconnected by a loop applications. Typical designs include vertical and hori- water loop. The water circuit serves as both a sink and zontal loops. In some applications, water is piped from the source for heat absorption and rejection and is designed ground or lake directly to the water source heat pump. Pip- for entering water temperatures between 50 and 90°F. ing is limited to the amount of pipe required to get the Within this temperature range units can heat or cool as water from the source to the unit. required from the same water source. Transferring heat NOTE: When utilizing Aquazone water source heat pumps from warm to cold spaces in the building, whenever they in ground loop systems, refer to design considerations in coexist,conserves energy rather than creating new heat. Refer to the Carrier Water Source Heat Pump Sys- the ground water system section. tem Design Guide for assistance designing water loop Horizontal ground loop systems. The guide includes a practical approach for the This system is used when adequate space is available and most current design recommendations including: trenching can be easily accomplished. A series of parallel • Product application including horizontal, vertical, con- pipes are laid out in trenches 3 to 6 ft below the ground sole, rooftop and water-to-water applications. surface, and then back-filled. Often, multiple pipes are • Ventilation methods and system design including energy used to maximize the heat transfer capability of each recovery. trench. The amount of pipe and the size of the ground • Acoustical considerations for different product types. loop field are based on ground conditions, heating, and • Addressing indoor air quality (IAQ) issues such as con- cooling requirements of the application and system design. densate removal, humidity control. Vertical ground loop • Air distribution design including diffuser selection/ This system is ncpd in vertical borehole applications. This layout and ductwork design. design is well suited for retrofit applications when space is lim- i • Hydronic system design including pipe sizing/layout ited or where landscaping is already complete and minimum and boiler/tower sizing. disruption of the site is desired. The vertical ground loop sys- • Control configurations such as stand alone, DDC, DCV tem contains a single loop of pipe inserted into a hole. The (demand controlled ventilation), and VVT®(variable vol- hole is back-filled and grouted after the pipe is inserted. The completed loop is concealed below ground. The number of ume and temperature) controls. loops required depends on ground conditions, heating and • Water Source Heat Pump Efficiency/Operational Cost cooling requirements,and the depth of each hole. Comparison chart. Hybrid systems • System variations such as a system without a boiler, variable pumping, and VAV (variable air volume) for In some applications, it may be beneficial to incorporate a interior use. cooling tower into the ground loop system to reduce the overall cost. A hybrid system discards excess heat into the Ground water systems air and increases the cooling performance of the ground To utilize Aquazone units in ground water applications, loop. extended range should be specified. This will provide fac- Condensate drainage tory-installed insulation on the coaxial coil to prevent con- Venting densate from dripping when entering water temperatures are below 50°F. In addition, the copper coaxial coil Properly vent condensate lines to prevent fan pressure installed on the Aquazone units may not be suitable for all from causing water to hang up in the piping. Condensate water conditions. Refer to the Water Conditioning section lines should be pitched to assure full drainage of conden- for proper coaxial coil material selection. sate under all load conditions. Use chemical treatment to Surface water system remove algae in the condensate pans and drains in geo- graphical areas that are conducive to algae growth. This system is typically located near a lake or pond. In this Trapping application, the loop can be submerged in a series of coils pp g beneath the water surface. The number of coils required Condensate trapping is a necessity on every water source depends on system load and design. This application heat pump unit.A trap is provided to prevent the backflow requires minimum piping and excavation. of moisture from the condensate pan and into the fan Open loop system intake or downstream into the mechanical system. The water seal or the length of the trap depends on the positive This system is used where ground water is plentiful. In this or negative pressure on the drain pan. As a rule of thumb, application, ground water is pumped through supply pip- size the water seal 1 in.for every 1 in. of negative pressure ing from the well to the building. The water is then on the unit. The water seal is the distance from the bottom pumped back into the ground through a discharge well as it of the unit condensate piping connection to the bottom of 24 Ca rgiep- 3 3 the condensate drain line run-out piping. Therefore, the It is important to know how to convert NC levels from the trap size should be double the water seal dimension. unit ratings in terms of sound power(Lw). This conversion `' Horizontal units depends on the specifics of the acoustical environment of the installation. + Horizontal units should be sloped toward the drain at a 1/4 in. The resulting calculations are compared to the NC curve per foot pitch. If it is not possible to meet the pitch require selected for the area to assess the acoustical design. ment,a condensate pump should be designed and installed at the unit to pump condensate to a building drain. Horizontal Some of the factors that affect conversion of sound units are not internally trapped; therefore an external trap is power to sound pressure and consequent NC level include: necessary. Each unit must be installed with its own individual • type of acoustical ceiling trap and means to flush or blow out the condensate drain. It is • use of metal or flex duct not acceptable to use a common trap or vent for multiple • absorption in the occupied space units. The condensate piping system should not be designed • location in the occupied space with a pipe size smaller than the drain connection pipe size. • open or closed layout plan Vertical units • use of open or ducted returns All vertical units require installation of an external trap. • orientation of unit to occupant Water conditioning • use of lined or unlined duct In some applications, maintaining proper water quality Hot gas reheat may require higher corrosion protection for the water-to- Hot gas reheat (HGRH) allows a WSHP to dehumidify the refrigerant heat exchanger. Water quality varies from loca- space when the space temperature is satisfied but the space tion to location and is unique for each job. Water charac- humidity is high.High humidity can promote mold and bacte- teristics such as pH value, alkalinity, hardness, and specific ria growth, poor indoor air quality(IAQ),and cause occupant conductance are important when considering any WSHP discomfort. application. Water typically includes impurities and Possible cauces of excess humidity could be a byproduct of hardness that must be removed. The required treatment the unit having to operate under a widely varying load, an will depend on the water quality as well as type of system. oversized unit that is short cycling, a high percentage of Water problems fall into three main categories: unconditioned outside air being introduced into the space, a 1. Scale formation caused by hard water reduces the heat high latent load in the space or any location where humidity transfer rate and increases the water pressure drop infiltration is a problem. through the heat exchanger.As water is heated, miner- A properly sized WSHP unit operating in cooling mode will als and salts are precipitated from a solution and dehumidify the air as it cools. Once the space temperature is deposited on the inside surface of the pipe or tube. satisfied and cooling mode is disabled, the unit no longer 2. Corrosion is caused by absorption of gases from the dehumidifies. Operating the unit in cooling mode for the sole air coupled with water on exposed metal. Corrosion purpose of dehumidifying will cause the space to become cold and uncomfortable. HGRH allows the unit to continue dehu- is also common in salt-water areas. midifying the space without over cooling the space. 3. Organic growths such as algae can reduce the heat Dehumidification with HGRH requires a control system with transfer rate by forming an insulating coating on the dehumidification capabilities, such as a thermostat with dehu- inside tube surface. Algae can also promote corrosion i i i n output, thermostat S m d f ratio ou u a with separate humidistat, or PP by pitting. a DDC controller with humidity sensor and dehumidification NOTE: In most commercial water loop applications,Aqua- output. zone WSHP units use copper water-to-refrigerant heat Once the space temperature is satisfied but the space humid- exchanger. Units can and should be equipped with a ity is above the desired set point, the control system sends a cupronickel heat exchanger for applications where water is dehumidification command (H input) to the WSHP. The outside the standard contaminant limits for a copper heat WSHP is now in dehumidification mode. exchanger. In dehumidification mode, the fan, reversing valve, HGRH Acoustical design valve, and compressor are all enabled. The reversing valve Sound power levels represent the sound as it is produced by directs cold refrigerant liquid to the indoor air coil and the the source, the WSHP unit, with no regard to attenuation HGRH valve directs warm refrigerant vapor to the HGRH between the source and the space. Acoustical design goals coil. are necessary to provide criteria for occupied spaces where As the fan draws warm,humid air into the unit,the air passes people can be comfortable and communicate effectively over through the indoor air cool where it is cooled and dehumidi- the background noise of the air-conditioning system and other fied, due to the cold liquid refrigerant flowing in the coil. The background noise sources. cooled and dehumidified air then passes through the HGRH Acoustical design goals are desirable sound pressure levels coil where it is reheated to a neutral temperature (68°F to within a given conditioned space and are represented by 78 F typical), due to the warm refrigerant vapor flowing in noise criteria (NC) curves. The NC curve levels represent a the coil. The air exits the unit at a neutral temperature and -beak over a full spectrum of frequencies.A high value in a low low humidity(dry). 'requency band has the same effect on NC level as a lower The unit will remain in dehumidification mode until the space value in a high frequency band. It is important that sound lev- humidity is reduced below the set point or there is a call for els be balanced over the entire spectrum relative to the NC space cooling, which is prioritized over dehumidification curve.The lower the NC criteria curve,the more stringent the mode. room acoustical design must be to meet the design goals. The moisture removal capacity of a WSHP in a specific appli- cation will depend on multiple factors including the WSHP 25 Application data (cont) Carrie) sizing,the nominal latent capacity,the application airflow,the the fan speed or increase the unit size until the desired condi- application temperatures and humidity, and the application lions are met. fluid flow and fluid temperature. Alternate methods of dehumidification with WSHPs include WSHP Builder can be utilized to simulate the performance of fan speed control and condenser water reheat. Fan speed WSHP units with HGRH under the desired application condi- control is one of the simplest and most efficient methods of Eons and will specify the unit leaving air dry bulb temperature dehumidification, but only provides dehumidification when and wet bulb temperature, which can be used to determine the unit is in cooling mode. Condenser water reheat can be the leaving air relative and absolute humidity levels. an effective method of dehumidification in boiler/tower appli- The target leaving air dry bulb temperature for unit with cations, but is not very efficient. Condenser water reheat HGRH in dehumidification mode is between 68°F and 78°F. requires hot loop temperatures (which reduces cooling effi- The target leaving air wet bulb temperature should result in a ciency) to achieve a neutral discharge air temperature and relative humidity is between 40 and 60%, based on the dry requires an extra pump which adds to the unit power con- bulb temperature. If the relative humidity is too high, reduce sumption. Condenser water reheat coils often have a higher airside pressure drop than HGRH coils, which results in higher fan energy consumption. 26 Carrier 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. 6.0 to 7.5 Ryznar Stability Index All N/A If>7.5 minimize steel pipe use. —0.5 to+0.5 Langelier Saturation Index 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 Fee+(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 OxygenAbove this level deposition will occur. Corrosion Preventiontt pH All 6-8.5 6to8.5 Monitor/treat as needed. Minimize steel pipe below 7 and no open tanks with pH<8. <0.5 ppm At H2S>0.2 ppm,avoid use of copper and cupronickel piping or HXs. Hydrogen Sulfide(H2S) All N/A 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, Chloride, Nitrate and All N/A <0.5 ppm Sulfate Compounds 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 Maximum Chloride Levels 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 <10 ppm of particles and <10 ppm(<1 ppm"sandfree"for reinjection)of particles and a maximum Particulate Size and All a maximum velocity of 6 velocity of 6 fps. Filtered for maximum 800 micron size.Any particulate Erosion fps.Filtered for maximum that is not removed can potentially clog components. 800 micron size. Use cupronickel heat exchanger when concentrations of calcium or Brackish All N/A sodium chloride are greater than 125 ppm are present.(Seawater is approximately 25,000 ppm.) LEGEND tt If the concentration of these corrosives exceeds the maximum HX — Heat Exchanger allowable 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 Potable Water no agitation occur as the sample is taken. Unless tested immediately at NR — Application Not Recommended the site, the sample will require stabilization with a few drops of one SS — Stainless Steel Molar zinc acetate solution, allowing accurate sulfide determination up to 24 hours after sampling. A low pH and high alkalinity cause system ` Heat exchanger materials considered are copper,cupronickel,304 problems, even when both values are within ranges shown. The term SS(stainless steel),316 SS,titanium. pH refers to the acidity,basicity,or neutrality of the water supply.Below t Closed recirculating system is identified by a closed pressurized 7.0,the water is considered to be acidic.Above 7.0,water is considered piping system. to be basic.Neutral water registers a pH of 7.0. "* Recirculating open wells should observe the open recirculating To convert ppm to grains per gallon,divide by 17. Hardness in mg/I is design considerations. equivalent to ppm. 27 Control sequence of operation (arrie� The WSHP Open multi-protocol controller will control WSHPs can be controlled from a single occupancy sched- mechanical cooling, heating, hot gas reheat and waterside ule. The local Occupancy Schedules must be disabled in economizer outputs based on its own space temperature order to utilize the global occupancy input. input and set points. An optional CO2 IAQ (indoor air qual- NOTE: Scheduling can only be controlled from one ity)sensor mounted in the space can maximize the occupant source. comfort. The WSHP Open has its own hardware clock that is automatically set when the heat pump software is down- BACnet network occupancy input a loaded to the board. Occupancy types are described in the The WSHP Open controller has the capability to accept an 1 scheduling section below. The following sections describe external BACnet Binary Network Input for occupancy con- the functionality of the WSHP Open multi-protocol control- trol. This function is only compatible with units used in 3 ler. All point objects that are referred to in this sequence of BACnet systems. You will need to configure the "System operation will be referenced to the objects as viewed in the Occupancy" BACnet network input point to locate the BACview6 handheld user interface. device and point name where the external occupancy 1 Scheduling point information resides. Also Occupancy Schedules must Scheduling is used to start/stop the unit based upon a time be disabled in order to utilize this input. period to control the space temperature to specified occu NOTE: Scheduling can only be controlled from one pied heating and cooing set points. The controller is source. defaulted to control by occupied set points all the time, Fire/smoke detector (FSD) input (field optional) until either a Time Schedules configured with the Equip- The WSHP Open controller has the capability to read the ment Touch interface, i-Vu Open, or a Third Party con- status of a NC FSD contact input to determine if a fire or trol system Enables/Disables the BAS On/Off point. Your smoke detector alarm is present. If the controller deter- local time and date must be set for these functions to oper- mines an alarm condition is present, all heating, cooling ate properly. The occupancy source can be changed to and the fan are disabled. The normal state of the switch is one of the following: factory set to Normally Closed and cannot be changed. Occupancy schedules Shutdown input The controller will be occupied 24/7 until a Time schedule The WSHP Open controller has a shutdown input (soft- has been configured using either, i-Vu Open, Equipment ware) which when set to its Active mode will cause the Touch or a third party Enables/Disables the BAS On/Off WSHP to safely shut down in a controlled fashion. Heating point. This can be disabled by going to Config>Unit>Occu- and cooling will be disabled after any minimum runtime pancy Schedules and changing the point from Enable to Dis- conditions expire and the fan will be disabled after the fan able. off timer expires. All alarms are reset but any active alarm NOTE: This point must be Enabled in order for i-Vu Open will remain active. After the shutdown input transitions or Bacview6 to assign a Time schedule to the controller. from Active mode to Inactive mode, the WSHP Open con- Schedule Schedule troller will restart after the configured power fail restart delay expires. The unit will operate according to the schedule configured Indoor fan and stored in the unit. The schedule is accessible via the Equipment Touch user interface, i-Vu Open, or Field Assis- The indoor fan will operate in any one of three modes tant. The daily schedule consists of a start/stop time (stan- depending upon the user configuration selected. Fan mode dard or 24 hour mode) and seven days of the week, can be defined/selected as Auto, Continuous, or Always starting with Monday and ending on Sunday. On. In Auto mode the fan is in intermittent operation Occupancy input contact (option) during both occupied and unoccupied periods. Continuous fan is intermittent during unoccupied periods and continu- If configured for remote occupancy control (default), the ous during occupied periods. Always On operates the fan WSHP Open controller has the capability to use an exter- continuously during both occupied and unoccupied peri- nal dry contact closure to determine the occupancy status ods. In the default mode, Continuous, the fan will be 1 of the unit. You will need to disable the Occupancy Sched- turned on whenever any one of the following is true: ules in order to utilize the Occupancy Contact Input. The • It is in occupied mode. Determined by its occupancy control will cause the unit to go into an occupied mode status. whenever the abnormal input is sensed. After the input • returns to its normal state, the unit will stay in the occupied Whenever there is a demand for cooling or heating in mode for the configured Occupancy Override Delay period the unoccupied mode. (15 minutes default). • When there is a call for dehumidification(optional). NOTE:Scheduling can only be controlled from one source. When power is reapplied after a power outage, there will BAS (building automation system) on/off be a configured time delay of 5 to 600 seconds before starting the fan. There are also configured fan delays for For use with a Building Automation System that supports Fan On and Fan Off. The fan on delay defines the delay network scheduling, you will need to disable the Occu- time (0 to 30 seconds; default 10)before the fan begins to pancy Schedules so the BAS system can control the unit operate after heating or cooling is started while the fan off through a network communication and the BAS schedul- delay defines the delay time(0 to 180 seconds; default 45) ing function. the fan will continue to operate after heating or cooling is NOTE: Scheduling can only be controlled from one source. stopped. The fan will continue to run as long as the com- pressors, heating stages, or the dehumidification relays are Global occupancy scheduling on. If the SPT failure alarm or condensate overflow alarm The WSHP Open controller has the capability to read the is active; the fan will be shutdown immediately regardless occupancy status from another unit so that a group of of occupancy state or demand. 28 Carrier Automatic 3-speed fan control space temperature (SPT) to the appropriate cooling set The WSHP Open controller is capable of controlling up to point. The water side economizer, if applicable, will be three fan speeds. The motor will operate at the lowest used for first stage cooling in addition to the r for the cool - speed the best latent capability. The motor will increase ing algorithm to run: speed if additional cooling or heating is required to obtain • Cooling is set to Enable the desired space temperature set point. The control • The Fire/Smoke Input and Shutdown modes are inac- c increases the motor's speed as the space temperature rises tive ' above the cooling or below the heating set point. The • Heat mode is not active and the compressor time amount of space temperature increase above or below the guard(s)have expired set point required to increase the fan speed is user configu- • Condensate Overflow input is Normal rable in the set point.Also,the control will increase the fan • Fan Status is true(if option is enabled) speed as the Supply Air Temperature approaches the con If occupied, the SPT isgreater than the occupied cool figured minimum or maximum limits. p p 1 Fan speed control- during heating • ing set point Space temperature reading is valid Whenever heat is required and active, the control continu- • If unoccupied, the SPT is greater than the unoccupied ously monitors the supply air temperature to verify it does cooling set point. not rise above the configured Maximum Heating SAT Limit • If economizer cooling is available and active and the (110°F default). As the SAT approaches this value, the economizer alone is insufficient to provide enough cool- control will increase the fan speed as required to ensure the ing. SAT will remain 5°F below the limit. This feature provides • OAT is greater than the Cooling lockout temperature if the most quiet and efficient operation by operating the fan at the lowest speed possible. OAT is available Fan speed control -during cooling • Condenser Water Pump is on (if condenser water link- age active) Whenever mechanical cooling is required and active, the control continuously monitors the supply air temperature If all the above conditions are met, the compressors will be to verify it does not fall below the configured Minimum energized as required, otherwise they will be de-energized. Cooling SAT Limit(50°F default). As the SAT approaches If coolingm SAT is mactive and should the SAT approachtothenext the higher this value, the control will increase the fan speed as mum limit, the fan will be indexed to the higher fur- required to ensure the SAT will remain 5°F above the limit. speed. Should this be insufficient and if the SAT falls Fan will operate at lowest speed to maximize latent capac- they (equal to the minimum SAT limit), the fan will be indexed to the maximum speed. If the SAT still continues ity during cooling. to fall 5°F below the minimum SAT limit, all cooling stages Fan status (option) will be disabled. An optional input can be configured as either an occu- During Cooling, the reversing valve output will be held in pancy input contact or a fan status input. If configured as the cooling position(either B or 0 type as configured)even fan status, the controller will compare the status of the fan after the compressor is stopped. The valve will not switch to the desired commanded state. The fan status sensor position until the heating mode is required. must be field provided and installed. Whenever the fan is The configuration screens contain the Min SAT parameter commanded to run(ON),the fan status will be checked and as well as cooling lockout based on outdoor air tempera- verified to match the commanded state. If the fan status is ture(OAT), both can be adjusted to meet various specifica- not on, then a fan status alarm will be generated after 1 minute and the equipment's compressor(s) and auxiliary tions. heat will be disabled and the optional OA damper will close There is a 5-minute off time for the compressor as well as (if equipped). a 5-minute time delay when staging up to allow the SAT to Coolingachieve a stable temperature before energizing a second stage of capacity. Likewise, a 45-second delay is used The WSHP Open controller will operate one or two stages when staging down. of compression to maintain the desired cooling set point. After a compressor is staged off, it may be restarted again The compressor outputs are controlled by the PI (propor- after a normal time-guard period of 5 minutes and if the tional-integral) cooling loop and cooling stages capacity supply air temperature has increased above the minimum algorithm. They will be used to calculate the desired num- supply air temperature limit. ber of stages needed to satisfy the space by comparing the 1 i 1 29 1 Control sequence of operation (cont) Carrier) The WSHP Open controller provides a status input to switch or other safety device has tripped and caused the corn monitor the compressor operation. The status is moni pressor to stop operating normally. If this should occur, an tored to determine if the compressor status matches the alarm will be generated to indicate the faulted compressor commanded state. This input is used to determine if a condition. Also, if auxiliary heat is available (see below), the refrigerant safety switch or other safety device has tripped auxiliary heat will operate to replace the reverse cycle heating and caused the compressor to stop operating normally. If and maintain the space temperature as required. this should occur,an alarm will be generated to indicate the Auxiliary heat faulted compressor condition. Reverse cycle heating Single stage electric auxiliary heat The WSHP Open controller will operate one or two stages The control can operate a single stage of electric heat installed of compression to maintain the desired heating set point. on the discharge side of the unit in order to maintain the The compressor outputs are controlled by the heating PI desired heating set point should the compressor capacity be (proportional-integral) loop and heating stages capacity insufficient or a compressor failure occurs. Unless a compres algorithm. They will be used to calculate the desired num sor fault condition exists, the heat stage will only operate to ber of stages needed to satisfy the space by comparing the supplement the heat provided by the compressor if the space space temperature (SPT) to the appropriate heating set temperature falls more than one degree below the desired point. The following conditions must be true in order for heating set point.The heat stage will be controlled so the SAT the heating algorithm to run: will not exceed the Maximum Heating SAT limit and subject to a two-minute minimum OFF time to prevent excessive • Heating is set to Enable cycling. Should the compressor(s)fail to operate and heating • The Fire/Smoke Input and Shutdown modes are inac- ' is required,the auxiliary heat will operate as required to main- tive tain the space temperature set point. • Cool mode is not active and the compressor time guard Indoor air quality (IAQ) and demand controlled has expired ventilation(DCV) • Condensate Overflow input is Normal If the optional indoor air quality sensor is installed or the net- • Fan Status is true(if option is enabled) work input point "System Space AQ" is utilized, the WSHP • If occupied, the SPT is less than the occupied heating Open controller can maintain indoor air quality, with a field- set point installed modulating OA damper providing demand controlled • Space temperature reading is valid ventilation. The control operates the modulating OA damper • If unoccupied, the SPT is less than the unoccupied heat- during occupied periods. The control monitors the CO2 level ing set point and compares it to the configured set points and adjusts the • OAT is less than the Heating lockout temperature if ventilation rate as required.The control provides proportional OAT is available. ventilation to meet the requirements of ASHRAE specifica- • Condenser Water Pump is on (if condenser water link- lions by providing a base ventilation rate and then increasing the rate as the CO2 level increases. The control will begin to age active) proportionally increase ventilation when the CO2 level rises If all the above conditions are met, the heating outputs will above the start ventilation set point and will reach the full ven- be energized as required, otherwise they will be de- tilation rate when the CO2 level is at or above the maximum energized. If the heating is active and should the SAT set point. A user configurable minimum damper position approach the maximum SAT limit, the fan will be indexed ensures that proper base ventilation is delivered when occu- to the next higher speed. Should this be insufficient, then if pants are not present. The IAQ configurations can be the SAT rises further and reaches the maximum heating accessed through the configuration screen. The following SAT limit,the fan will be indexed to the maximum speed. If conditions must be true in order for this algorithm to run: the SAT still continues to rise 5°F above the maximum • Damper control is configured for DCV. limit, all heating stages will be disabled. • The Fire/Smoke Input and Shutdown modes are inac- During Heating, the reversing valve output will be held in tive. the heating position(either B or 0 type as configured)even • Fan Status is true(if option is enabled). after the compressor is stopped. The valve will not switch • The unit is in an occupied mode. position until the cooling mode is required. • IAQ sensor reading is greater than the DCV Start Con- The configuration screens contain the Max SAT parameter trol set point. as well as heating lockout based on outdoor air temperature (OAT),both can be adjusted to meet various specifications. The control has four user adjustable set points: DCV start There is a 5-minute off time for the compressor as well as control set point, DCV Maximum Control set point, Mini- a 5-minute time delay when staging up to allow the SAT to mum damper position and the DCV Maximum damper achieve a stable temperature before energizing a second position. stage of capacity. Likewise, a 45-second delay is used NOTE: In order for the damper to maintain proper base ven- when staging down. tilation, the fan must be configured to operate in either the After a compressor is staged off, it may be restarted again Continuous or Always On mode. after a normal time-guard period of 5 minutes and if the Two-position OA damper supply air temperature has fallen below the maximum sup The control can be configured to operate as a ventilation ply air temperature limit. damper in a 2-position ventilation mode to provide the The WSHP Open controller provides a status input to moni- minimum ventilation requirements during occupied peri- tor the compressor operation. The status is monitored to ods. This control operation still utilizes the modulating determine if the compressor status matches the commanded damper actuator. state. This input is used to determine if a refrigerant safe ptiJ 30 1 Carrier Dehumidification with hot gas reheat(HGRH) Heating The WSHP Open controller will provide occupied and Additionally, the economizer control will open the water unoccupied dehumidification only on units that are valve should the entering water loop temperature be' suit- equipped with the factory-installed HGR option. This func- able for heating(at least 5°F above space temperature)and ll tion requires an accessory space relative humidity sensor. heat is required. The valve will be controlled in a similar When using a relative humidity sensor to control dehumidi- manner except to satisfy the heating requirement. Should fication during occupied or unoccupied times, the dehu- the coil capacity be insufficient to satisfy the space load for midification set points are used accordingly. Additionally, more than 5 minutes, then the compressor will be started , the network input point "System Space RH" may also be to satisfy the load. Should the SAT reach the Maximum ) used in place of the hard wired RH (relative humidity) sen- Heating SAT limit, the economizer valve will close during sor. When the indoor relative humidity becomes greater compressor operation. then the dehumidification set point a dehumidification Demand limit demand will be acknowledged. As long as heating or cool- ing is not currently active, dehumidification will be ener- The WSHP Open controller has the ability to accept three 1 gized, bringing on the supply fan (medium speed), levels of demand limit from the BACnet network. In mechanical cooling, and the integral refrigerant hot gas response to a demand limit, the unit will decrease its heat- reheat coil. The controls will engage cooling mode, start ing set point and increase its cooling set point to widen the the compressor if not already operating, and waste heat range in order to immediately lower the electrical demand. from the compressor cooling cycle will be diverted to the The amount of temperature adjustment in response is user reheat coil. The reversing valve will be positioned to oper- adjustable for both heating and cooling and for each ate the compressor in the cooling mode. If a call for sensi- demand level. The response to a particular demand level ble cooling takes place during hot gas reheat operation,the may also be set to zero. hot gas reheat is de-energized and the reheat operation is Power failure restart delay turned off. Once the call for cooling has been satisfied and The control provides a user configurable delay when recov- if there is still a need for dehumidification, the unit will con- ering from a power failure or SHUTDOWN mode or when tinue to operate in a dehumidification mode with the corn- transitioning from unoccupied to occupied mode in order pressor providing cooling and the refrigerant reheat to prevent excessive demand when many units start simul- energized. taneously. Each unit can be user configured for a unique Waterside economizer delay between 5 and 600 seconds. The factory pro- The WSHP Open controller has the capability of providing grammed default delay is 180 seconds. two-position waterside economizer operation (economizer Fire/smoke detector alarm coil is mounted to the entering air side of the unit and con- The control monitors the voltage input to J1-9 to detect if nected to the condenser water loop)in order to be used to a smoke detector or fire detector Normally Closed contact provide free cooling(or preheating)when water conditions has opened, indicating an alarm condition. The control will are optimal. Water economizer settings can be accessed verify the presence of 24 vac on this input. If the input through the equipment status screen. The following condi- should open at any time, an alarm will be generated after 3 tions must be true for economizer operation: seconds and the equipment (fan, compressor, auxiliary • SAT reading is available. heat and damper) will immediately return to an OFF or • EWT reading is available. closed state. • If occupied, the SPT is greater than the occupied cool- Space temperature alarms ing set point or less than the occupied heating set point The control provides the abilityto generate an alarm when- and the condenser water temperature is suitable. ever the spac temperature xceeds the alarm set point. A • Space temperature reading is valid. separate occupied hysteresis and fixed unoccupied high and • If unoccupied, the SPT is greater than the unoccupied low alarm set points are provided. The control provides a 5- cooling set point or less than the unoccupied heating set minute alarm delay during unoccupied periods. During occu- point and the condenser water temperature is suitable. pied periods, the control uses the occupied temperature set Two-position water economizer control points and applies the hysteresis value to determine the alarm set points. Whenever an occupancy transition from The control has the capability to control a normally open unoccupied to occupied occurs or the occupied temperature or normally closed, two-position water valve to control set points are changed causing an alarm condition to occur, condenser water flow through a coil on the entering air the control will automatically calculate an alarm delay(equiv- side of the unit. alent to the configured delay time in minutes per degree F Cooling times the temperature error that occurred plus 15 minutes). The purpose is toprovide a coolingeconomizer function This will prevent nuisance alarms whenever an occupancy P p change occurs and allows time for the unit to correct an directly from the condenser water loop when the entering alarming temperature condition. water loop temperature is suitable(at least 5°F below space Condenser water temperature alarm temperature). If the optional coil is provided and the water p loop conditions are suitable, then the valve will open to The control has 4 configurable alarm limits for condenser provide cooling to the space when required. Should the water temperature. The control will verify that the water capacity be insufficient for a period greater than 5 minutes, temperature is within operating range (between high and or should a high humidity condition occur, then the corn- low limits)for the specific operating mode (heating or cool- pressor will be started to satisfy the load. Should the SAT ing) before energizing the compressor. Once the compres- reach the Minimum Cooling SAT limit, the economizer sor is started, the condenser water temperature is further valve will close during compressor operation. monitored to verify that it is within limits to ensure sufficient water is flowing through the coil. Should the leaving water 31 Control sequence of operation (cont) ,Carrier 5 temperature rise above or fall below the appropriate limits, can be disabled by setting Occupied High IAQ Alarm Limit 1 and alarm is generated and the compressor will be shut to zero. down if the condition occurs for more than 15 seconds. Relative humidity alarm Supply air temperature alarm The control provides the ability to generate an alarm The control has 2 configurable alarm limits for supply air whenever the space relative humidity exceeds the alarm set i temperature. The control will verify that the supply air tern- point. Separate occupied and unoccupied high humidity perature is within operating range (between high and low alarm set points are provided. The control provides a 5- limits)whenever the compressor or auxiliary heat is operat- minute alarm delay during unoccupied periods. During ing. Should the air temperature rise above or fall below the occupied periods,the controller uses the occupied high RH appropriate limit, an alarm is generated if the condition alarm limit. Whenever an occupancy transition from unoc- occurs for more than 1 minute. cupied to occupied occurs,or the occupied high alarm limit High condensate/overflow alarm is lowered causing an alarm condition to occur,the control The control will monitor a discrete input to determine the will automatically calculate an alarm delay: j state of a condensate level switch.The input can be config- the configured delay time in minutes + 15 minutes ured to alarm on either an open or closed switch condition. RH times the humidityerror Should this input be in an alarm state, the control will start condition that occurre I a timer and after the timer exceeds a configurable Conden- sate Overflow Alarm Delay limit (10-second default), the This will prevent nuisance alarms whenever an occupancy ( control will generate an alarm and the unit will disable the change occurs and allows time for the unit to correct an 1 compressor and fan outputs. alarming humidity condition. Fan status alarm (optional) Condenser water linkage failure alarm (if con- e The control generates a fan status alarm should the fan sta- denser water linkage was active) tus input detect the fan is OFF after any fan speed output The control generates a condenser water linkage failure has been enabled. A 30-second alarm delay is used to alarm should linkage fail after once being active. The link- ] allow the fan sufficient time to start operating before an age status is monitored and should it fail to be updated alarm condition is detected. The control monitors the fan from the Loop Controller, then a Condenser Water Link- 1 output and if the fan is operating at any speed,the fan sta- age alarm is generated. A 6-minute alarm delay is provided tus must detect the fan is operating. to prevent false alarm from occurring. Compressor status alarm NOTE:This alarm can only be reset by re-establishing linkage The control generates a compressor failure alarm should the and correcting the condition that caused the linkage failure to compressor status input detect the compressor is OFF after occur or by setting the SHUTDOWN point to Active momen- the compressor output has been energized. A 6-minute tarily. alarm delay is used to allow the compressor to start (pre Airside linkage failure alarm (if airside linkage vents alarms due to time guard operation) before an alarm condition is detected. The control monitors the compressor was active) output and if the compressor output is energized, the corn- The control generates an airside linkage failure alarm pressor status input must detect the compressor operation. should linkage fail after once being active. The linkage sta- Filter status alarm tus is monitored and should it fail to be updated from the The controlprovides the abilitytogenerate a dirtyfilter Master Zone Controller, then an Airside Linkage alarm is generated. A 6-minute alarm delay is provided to prevent alarm after the number of fan run hours exceeds a configu- g false alarm from occurring. rable filter alarm timer limit. The control monitors the fan NOTE: This alarm can only be reset by re-establishing link- output and if the fan is operating at any speed, it accumu age and correcting the condition that caused the linkage fail- lates run time. Should the fan run time hours exceed the ure to occur or by setting the SHUTDOWN point to Active configurable limit, an alarm is generated. To reset the alarm timer after the alarm has been generated, a Reset momentarily. Filter Alarm input is provided. The filter alarm can be dis- OAT sensor alarm (if network OA temperature abled by setting the Filter Alarm Timer Delay to zero (fac- was active) tory default). The control generates an OAT sensor failure alarm should Indoor air quality alarm the value of OAT fail to be updated through the Network The control provides the ability to generate a high CO2 after once being active.The update status is monitored and level alarm during occupied periods whenever the CO2 should it fail to be updated, then an OAT sensor alarm is sensor value exceeds the user adjustable limit. Whenever generated. An alarm delay (approximately 1 hour) is pro- an occupancy transition from unoccupied to occupied vided to prevent false alarm from occurring while minimiz- occurs, or the occupied alarm limit is changed to a value ing the required update rate for OAT. that causes an alarm condition to occur, the control will NOTE: This alarm can be reset by setting the SHUT- automatically calculate an alarm delay: DOWN point to Active momentarily. the configured delay time in minutes ZS sensor alarm (if ZS sensor was active) + 15 minutes The control generates a ZS sensor failure alarm should the ppm times the error that occurred ZS sensor fail to communicate with the control. The This prevents nuisance alarms from occurring when occu update status is monitored and should it fail to be updated, pancy changes or the set point is changed. The IAQ alarm then the alarm is generated. 32 Guide specifications ( carrier Packaged Water Source Heat Pumps from shipping (whichever occurs first). The manu- facturer shall warranty the compressor (parts only) HVAC Guide Specifications (Water Loop) for a period of up to 5 years from shipping. Size Range: 6,100 to 64,000 Btuh Part 2 —Product Cooling Capacity 7,800 to 72,800 Btuh 2.01 EQUIPMENT Heating Capacity A. General: Units shall be prewired and precharged in Carrier Model Number: factory. 50PCH, 50PCV B. Basic Construction: Part 1 —General 1. Units shall have the airflow arrangement as 1.01 SYSTEM DESCRIPTION shown on the plans. If units with these arrange- ments are not used, the contractor supplying A. Install water source heat pumps, as indicated on the the water source heat pumps is responsible for plans with capacities and characteristics as listed in any extra costs incurred by other trades and the schedule and the specifications that follow. Units must submit detailed mechanical drawings shall be horizontal or vertical configurations. All showing ductwork requirements and changes or equipment shall be rated and certified in accordance relocation of any other mechanical or electrical with ANSI/AHRI/ASHRAE/ISO (American system. If other arrangements make servicing National Standard Institute/Air-Conditioning, Heat- difficult, the contractor must provide access ing and Refrigeration Institute/American Society of panels and clear routes to ease service. The Heating, Refrigerating, and Air-Conditioning Engi- architect must approve all changes 10 days neers/International Organization for Standardiza- prior to bid. tion) 13256-1. All equipment shall be tested, 2. All units shall have stainless steel drain pans to investigated, and determined to comply with the comply with this project's IAQ (indoor air qual- requirements of the standards for Heating and Cool ity) requirements. Painted steel or plastic is not ing Equipment UL-1995 for the United States and acceptable. CAN/CSA-C22.2 NO.236 for Canada, by Intertek Testing Laboratories (ETL). The units shall have 3. The cabinet shall be fabricated from heavy gage AHRI/ISO and ETL-US-C labels. galvanized steel for superior corrosion protection. B. Units shall be supplied completely factory built and All interior surfaces shall be lined with 1/2 in. thick, multi-density, coated, fiberglass insulation. capable of operation with an entering water tern- Insulation must be non-combustible, non-hydro- perature range from 50 to 100°F. Quality control scopic and anti-fungal. Insulation must meet system shall automatically perform via computer: tri NFPA 90A and 90B for fire protection as well as ple leak check, pressure tests, evacuation and accu Fire Hazard classification 25/50 rately charging of system, detailed heating and (per ASTivi E84 cooling mode tests, and quality cross checking all and UL 723 and CAN/ULC S102 M88), ASTM operational and test conditions to pass/fail criteria. C1071, erosion requirements of UL181 and be certified to meet GREENGUARD indoor air qual- C. Units shall be individually packaged on wooden skid ity standards for low emitting products. Units shall with protective corner posts and plastic stretch have an insulated divider panel between the wrapping for maximum protection. air-handling section and the compressor section 1.02 QUALITY ASSURANCE to minimize the transmission of compressor A. All equipment listed in this section must be rated in noise, and to permit service testing without air accordance with ANSI/AHRI/ASHRAE/ISO bypass. One blower access panel and two com- 13256-1 performance standard, latest edition. The pressor compartment access panels shall be applicable units shall have a AHRI/ISO label. Stan- removable with supply and return air ductwork in dard cabinet panel insulation shall meet NFPA place. j (National Fire Protection Association) 90A require- 4. Unit shall have a floating compressor or pan I ments, air erosion and mold growth limits of UL- consisting of a 1/2-in. thick high density elasto- 181, stringent fungal resistance test per ASTM- meric pad between the compressor base plate C1071 and ASTM G21, and shall meet zero level and the unit base pan to prevent transmission bacteria growth per ASTM (American Society for of vibration to the structure. Testing and Materials)G22. 5. Units shall have a 1-in., two sided filter rack with B. All units shall be factory tested in all operating 1-in.thick throwaway type fiberglass filter as stan- modes and safety switch operation shall be verified. dard. Units shall have an optional 2-in.,four-sided C. Serial numbers will be recorded by factory and fur- filter rack with either 2-in. thick pleated MERV 8 nished to contractor for ease of unit warranty status. filter (size 007-070) or MERV 13 filter (size 015 WARRANTY: and larger)available. The filter rack shall incorpo- 1.03rate a 1-in.duct flange. The manufacturer shall warranty the unit's parts for 6. Cabinets shall have separate holes and knock- a period of 12 months from start-up or 18 months outs for entrance of line voltage and low voltage 33 Guide specifications (cont) (earner 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, have 3 speed exchanger. Refrigerant-to-water heat exchang- settings (208V, 230V, 265V, or 460V) or 1 ers shall be of copper inner water tube and steel speed setting (575V), permanently lubricated, outer refrigerant tube design rated to withstand PSC (permanent split capacitor) type with ther- 600 psig working refrigerant pressure and 400 mal overload protection. psig working water pressure. Shell and tube 2. Units rated 15,000 to 70,000 Btuh shall have style refrigerant to water heat exchangers shall an optional constant torque electronically com- be treated as pressure vessels and shall require mutated motor for premium fan efficiency. refrigerant pressure relief valves piped to the These motors shall feature 5 pre-programmed exterior of the building. The contractor supply- torque settings that can be changed in the field to ing the water source heat pumps with shell and match design requirements. 460 v-3 ph-60 Hz tube heat exchangers shall be responsible for units with these motors must be able to operate any additional installation costs. Brazed plate without the need for a neutral wire for the motor. water-to-refrigerant heat exchangers shall require additional centrifugal separators added 3. Blower shall have inlet rings to allow removal of to the supply water piping at each unit. Each wheel and motor from one side without remov- separator shall have an automated clean out ing housing. 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, externally isolated 1. Electrical: and with thermal overload protection. a. Controls and safety devices will be factory 3. Refrigerant metering thermostatic expansion wired and mounted within the unit. Controls valves or capillary tubes. shall include fan relay, compressor contac- 4. The finned tube heat exchanger shall be con tor, 24 v transformer, reversing valve coil, anUnit d ProtectionModule (UPM). The structed of lanced aluminum fins not exceeding ( ) standard transformer shall be rated for a 34 Carrier, 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. HACR circuit breakers. Unit controls shall 2.) Two or four restart attempts before a 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 that could result in air heat exchanger 3. Complete C Control: freezing. a. Unit Protection Module(UPM): 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 the compressor control circuit if there 1.) Anti-short cycle time delay (5-minute are extreme variations in supply voltage. delay on break). e. All units shall have a factory installed and 2.) Random start time delay on initial power. labeled terminal strip input for field powered 3.) Brownout/surge/power interruption thermostat or DDC control. protection. f. 50VA transformer for units without HGRH 4.) 120 second low pressure switch bypass or waterside economizer. 75VA transformer timer. for units with HGRH or waterside econo- 5.) High refrigerant pressure shutdown. mizer. 6.) Low refrigerant pressure shutdown. g. Units shall include a factory provided wiring 7.) Low water temperature shutdown diagram on the inside of the control access (adjustable for closed loop systems). panel. 8.) Air coil freeze protection shutdown. 4. Deluxe D Controls: 9.) High condensate level shutdown. 10.)24 vac alarm output for remote fault Optional Deluxe D control package shall have indication. all the features of the Complete C control pack- b. The UPM shall automatically reset after a age with the following additional features: safety shutdown. Restart the unit if the cause a. 75 VA transformer. of the shutdown no longer exists (except for b. Pump-valve relay to enable a pump/valve low temperature and high condensate level operation when calling for compressor shutdowns). Should a fault re-occur within operation. 60 minutes after reset,then a "hard" lockout c. Energy management switch to enable will occur. A light-emitting diode (LED) shall remote operation of WSHP (water source annunciate the following alarms: brownout, heat pump). high refrigerant pressure, low refrigerant d. Phase monitor to protect the compressor pressure, low water temperature and a high from operating in reverse rotation on three level of condensate in the drain pan. The phase units (460V/3Ph only). LED will display each fault condition as soon as the fault occurs. If a hard lockout occurs, e. Boilerless control shall activate an electric then the fault LED will display the type of heater(external unit)and disable compressor fault until the unit is reset. should water temperature drop below set c. The UPM shall feature the following field point. The relay (when energized) deacti configurable adjustments: vates the compressor control circuit. 35 Guide specifications (cont) C�rr1e� 5. WSHP Open Multiple Protocol Control: override, set point adjustment, LCD (liquid a. Units shall have all the features above (UPM) crystal diode) display, alarm indicator and and the state of the art WSHP Open multi fan speed control. s ple protocol interface board will have the d. ZS Pro-F sensor with communication port, ability to be viewed in the Equipment occupancy status indicator, local occupancy TouchTm, System Touchm, or field assistant override, set point adjustment, LCD display, user interface. All point objects will have the alarm indicator, fan speed control, cooling/ ability to be viewed in the Equipment Touch heating/fan only mode control and F to C user interface. The following points must be conversion. available at a central or remote computer F. Factory-Installed Options: location: 1. Cupronickel coaxial water-to-refrigerant heat 1.) Space temperature exchangers shall be provided, with cupronickel 1 2.) Leaving water temperature inner water tube construction. 3.) Discharge air temperature 2. Evaporator coil protection shall be factory 4.) Command of space temperature set installed with tin electro-plated copper tubing point and high-tech polymer coated aluminum fins to 5.) Cooling status protect the air coil from all forms of corrosive 6.) Heating status 7.) Low temperature sensor alarm elements in the airstream. 8.) High pressure switch alarm 3. Sound attenuation (mute) package shall consist 9.) Fan on/off position of space thermostat of high technology compressor blanket on sizes 10.)Unoccupied/occupied command 018 and above. 11.)Cooling demand 4. Extended range option shall consist of insula- 12.)Heating demand tion on the piping inside the unit leading to and 13.)Fan "ON/AUTO" command from the coaxial coil along with insulation on 14.)Fault prevention with auto reset the coaxial coil itself. This insulation will allow 15.)Itemized fault code viewed with Equip- for operation with entering water temperatures ment Touch interface from 25 to 110°F. b. Additional WSHP Open multiple protocol 5. Units shall have an optional 2-way electrically control features shall include: operated shut-off valve mounted internally in 1.) Three-speed fan control. Controller shall the unit cabinet. The two-way motorized sole- automatically, based upon space tern- noid valve is rated for a 300 psig working pres- perature input, operate the fan at the sure. lowest of 3 selectable speeds to achieve 6. Units shall have an optional water flow regulat- space temperature set point. ing valve set to 3 gallons per minute of water 2.) Two-position OA(outdoor air)damper flow per nominal ton of refrigeration capacity. 3.) Modulating OA damper with DCV 7. Hot Gas Reheat(HGRH): Units with a capacity (demand controlled ventilation) above 12,000 Btuh shall be equipped with 4.) Hot gas reheat solenoid valve optional hot gas bypass. On/Off HGRH shall 5.) Two-position water economizer control be controlled by a thermostat with dehumidifi- 6.) Modulating water economizer control cation output, humidistat, or DDC control con- 7.) Single stage electric auxiliary heat nected to the unit H terminal and shall start the 8.) Power fail restart delay unit in the reheat mode should the humidity be 6. Multiple-protocol WSHP Open controller above the set point once the space temperature remote ZS sensors for DDC (direct digital con- is satisfied. Cooling or heating requirements trols) control options. Only Carrier ZS sensors shall take precedent over HGRH. can be used with the WSHP Open controller. 8. Hot Gas Bypass: Units shall be supplied with an Sensors are available as follows, and all sensors ETL listed modulating hot gas bypass valve with below offer monitoring of space temperature factory supplied and installed controls to pre- only, or space temperature and CO2, or space vent air coils from frost development by taking temperature and humidity, or space tempera- hot gas and bypassing the water coil and expan- ture and CO2 and humidity. sion device and reintroducing the hot gas into a. ZS Standard sensor with a communication the refrigeration line prior to the air coil. The port. hot gas bypass valve shall maintain a minimum b. ZS Plus sensor with communication port, refrigerant suction pressure to allow for a light occupancy status indicator, local occupancy load cooling module or a low entering air tern- override and set point adjustment. perature cooling mode. c. ZS Pro sensor with communication port, 9. Waterside Economizer: Waterside economizer occupancy status indicator, local occupancy shall be completely installed at the factory, with 36 k b Carrier an additional condensate drain pan, motorized steel. All heating elements shall be made of 3-way valve, aquastat, and all internal electric nickel/chromium resistance wire with ends controls.Waterside economizer shall be rated at terminated by means of staking and heliarc 400 psig and UL (Underwriters Laboratories) welding to machine screws. Heating element i listed for applications with the heat pump. This support structure shall consist of galvanized option is externally mounted outside the unit. steel wire formed and constructed to support 10. Unit mounted disconnect: A non-fused factory ceramic bushings through which the heating mounted disconnect shall be installed on the element passes. Control cabinet shall be con- structed of heavy gage galvanized steel with unit. multiple knockouts for field wiring. Control 11. Closed cell foam (CCF) shall be installed on cabinet shall have a solid cover also of heavy interior surfaces of water source heat pump and gage galvanized steel and held in place with shall meet the density and compression require- hinges and tool-release latches. ments of ASTM D 1056, the water absorption requirements of ASTM D-1667 and the tensile b. Duct heater shall be supplied with primary and elongation requirements of ASTM D-412. over temperature protection by built hi disc Closed cell foam shall meet the flammability type automatic reset thermal cutouts and requirements of FMVSS302, UL94 and ASTM secondary over temperature protection by E84. built in disc type manually resettable thermal G. Accessories: cutouts. These devices must function inde- pendently of one another and are not 1. Carrier commercial thermostat controls are acceptable if series connected in the control available as follows: circuit wiring. A disconnecting magnetic Edge® Pro 7-day programmable thermostat control circuit is required. All duct heaters offers 2-stage heat, 2-stage cool, remote con- will require either a fan interlock circuit or an tact input, remote sensor capability, pre-occu- airflow switch. pancy purge, soft start, manual/auto c. Over-current protection by means of factory- changeover, 4 settings per day, 24 vac, backlit installed fusing within the control cabinet LCD, keypad lockout, no batteries required, 5- shall be provided for heaters rated at more minute compressor protection, never lost mem- than 48 amps. Heating elements shall be ory, 3 security levels, and temperature display subdivided and fused accordingly. in degrees F or C. d. All wiring, component sizing, component 2. Hose Kits and Valves: spacing and protective devices within the con- All units shall be connected to main water sup- trol cabinet shall be factory installed and com- ply and return headers with hoses. The hoses ply with UL standards. All heaters shall shall be 2 feet long, braided stainless steel rated function properly with a 60 Hz power supply. to 400 psig at 265°F. Hoses may contain e. A wiring diagram depicting layout and con- ; optional ball valves with P/T ports, Y strainers nections of electrical components within the with blow down valves and/or auto flow regula- control cabinet shall be affixed to the inside tors as specified in the schedule. of the control cabinet cover. 3. Electric Duct Heaters: f. A rating plate label shall be affixed to the a. Duct heater shall be slip-in type and shall be exterior of the control cabinet cover which UL approved for zero clearance to combusti- states model number, serial number, volts, ble surfaces. The heater shall bear a UL/CSA amps, phase, frequency, control volts, volt- label. Control panel and element housing amps and minimum airflow requirements. shall be constructed of heavy gage galvanized 37 Carrier Carrier Corporation•Syracuse,New York 13221 1-2020 Manufacturer reserves the right to discontinue,or change at any time,specifications or designs without notice and without incurring obligations. Pg 40 Catalog No.04-52500171-01 Printed in U.S.A. Form 50PC-14PD Replaces:50PC-13PD