Plans ,
OFFICE COPY OFFICE COPY
CITY OF TIGARD,
REVIEWED FOR CODE COMPLIANCE
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Pcnni:#: m pi-cin,I _or)Lc.c I
Address: 1 9 sa & r d r i„ pi,
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VALIDITY OF PERMIT
THE ISSUANCE OF A PERMIT
BASED ON CONSTRUCTION
DOCUMENTS AND OTHER
7)ATt SHALL NOT PREVENT
THE CODE OFFICIAL FROM
REQUIRING THE CORRECTION
OF ERRORS. OSSC 105.4
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4ob Name.D..a...FGraoP
sYt.C1:3'Tech Heat'n' Cj Park 217 Business Center
ouanny,1 11950 SW Garden Pl.
Bldg. 7- Suite 11958
Trane Precedent Gas/Electric Packaged Rooftop Tigard, OR. 97223
Unit Overview-YSC048G3EMB**000000000000000000000000000
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..124EER 1440
. . •1'6°G-Cfrrl: 34,,t ft 3.69 ft 6,82 ft 492.61b 767,0 , .
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Unit Features
48
IIMEE1211111111111111111111111111.11111
Voiiiiiiiphasetiertz 208-230/60/3
MCA 26.00 A
MOP 35.00 A
• ,
Controls
lialtrikiktiliFT"1/21611P,.e,711i2ijita&P'9.11, „ „„„-„1„-,Electra Info.„ -controls
Cooling Section
Entering Wet Bulb 67.00 F Gross Total 48.89
Ambient Temp 95.00 F Gross Sensible aa 78 MF3r,
Leaving Coil Dry Bulb 56.90 F Net Total A:7 57 MBr
Leaving Coil Wet Bulb 56.90 F Net Sensible 37 46 MBh
Leaving Unit Dry Bulb 58.69 F Fan Motor Heat 32 MBh
Leaving Unit Wet Bulb 57.60 F Refrig Charge-cfroutt.1 3.5 lb
Refrigeration System Optipps
Leaving Dew Point 56 91 F
Heating Section
Heat Type Gas Heat
Heating Stages 2
Output Heating Capacity 81.00 MBh
Output Heating Capacity with Fan 82.58 MBh
Heating EAT 70 00
Heating LAT I17.10 F
Heating Temp Rise 4 7 10 F
Fan Section
Outdoor Fan Data
Type FC Cent?t,11,-F3; Type P-opellef
Drive Type Dr ed. Fan Quantity
Evap Fan FLA 5.90 A Drive Type Direct
Indoor Fan Performance Outdoor Fan Performance
Airflow 1600 c,Trt-, Condenser Fan FLA 43 A
Design ESP 0.500 in H20
Component SP 0.000 in H20
Total SP 0.500 in H20
Supply Motor Horsepower 1.000 hp
Indoor Motor Operating Power 0.50 bhp
Indoor Motor Power 0.37 kW
Indoor RPM 945 rpm
•
Compressor Section
Power 3.38 kW
' lrcuIt
1 RLA 13.70 A
'Oroolt,..g.,RLA 0.00 A
Page lot 10
nnn.el,1 C -7,17.,17
Job Name.t7&e Group
Titr'rg,pareo ay:t'r Tech Heating&.doling
Bost •
Tap:Y4C.1
Quantity:
ACOUStiCS
Ao,
9t,� , ��
63 Hz : 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz
89 dB 72 dB 68 dB 63 dB 60 dB 56 dB 55 dB 48 dB
91 dB 71 dB 65 dB 56 dB 53 dB 50 dB 47 dB 42 dB
J'„fl.•:`, 81 dB 82 d8 83 dB 81 dB 77 dB 72 dB 66 dB 59 dB
Note:Ducted Inlet and Ducted Discharge Sound Power Levels are in accordance with AHRI 260.
Note:Outdoor Sound Power Levels are in accordance with AHRI 270.
---' one of in
e
411it' am— ;I,AI Name:0&F3 GrouP
1 ,„ E L,,,,,;:frae,d.fe,..IscoT:riiTech Heating&Cooling
Quant4 1
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EVAPORATOR
SECTION ACCESS PANEL—, s, ',,,, -;.-"------- . .''''''><"
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CONDENSATE DRAIN(AT) '''..,,,
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SERVICEK.— GAUGE PORT ACCESS 1 318"DIA HOLE
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THROUGH THE BASE \-1/7 NPT GAS CONNECTION
CONDENSATE —Th,
, -23 112"----s4
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7---- NOTES:
4 3113-
1,THRU-THE-BASE GAS AND ELECTRICAL IS NOT STANDARD ON AL L UNITS
2 VERIFY WEIGHT,CONN ECTION,AND ALL DIMENSION WITH
INSTALLER DOCUMENTS BEFORE INSTALLATION
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DIMENSION DRAWING
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I SUPPLY 14 3/4"
.• 14 -4---1! 20 114" ,. AIR FLOW
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PACKAGED GAS I ELECTRICAL
DIMENSION DRAWING
2021-07-15 17:27:42Z Page 3 of 10
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ISOMETRIC-PACKAGED COOLING
2021-07-15 17:27:42Z Page 4 of 10
i
JoJotsNome:I.,a ItGroup
.,
I - Propared By:TriTech Heating S Cooling
Unit Tag:V4C-1
Quantity-1
ELECTRICAL/GENERAL DATA
--I
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GENERAL HEATING PERFORMANCE
Model. ysco480 Oversized Motor HEATING-GENERAL DATA
(Mt Operating Voltage. 187-253 MCA-. N/A
Unt Plenary Voltage: 208 MFS: NA Heating Model Medium
On*Secondary Voltage 230 MCB. N/A Heating Input(BTU) 100,000/70,000
Unt Hear 60 Heating Output(BTU4' 81.000/56,700
Unit Phase 3 No.Burners 3
No Stages 2
EER/SEER 12 0V14.0
Standard Motor Feld Installed Oversized Motor Gas Inlet Pressure
MCA: 26.0 MCA NA Natural Gas(Min/Ma)l 4 1/7/14"
MFS' 35 0 MFS NA LP(Min/Mak) 11"/14'
MCB. 35.0 MCB NA Gas Pipe Connection Size, lir
INDOOR MOTOR
Standard Motor Oversized Motor Feld Installed Oversized Motor
N UM bef. 1 Number NA Number:
Horsepower I 0 Horsepower N/A Horsepower
Motor Speed(RPM3' -- Motor Speed(RPM): NA Motor Speed(RPM)
Phase 1 Phase NA Phase
Full Load Amps- 6 9 Full Load Amps. N/A Full Load Amps
Locked Rotor Amps .. Locked Rotor Amps Ngi, Locked Rotor Amps
COMPRESSOR Circuit 1/2 OUTDOOR MOTOR
Number I Number 1
Horsepower 3.6 Horsepower 0 33
Phase: 3 Motor Speed(RPM): 1100
Rated Load Amps' 13 7 Phase' 1
Locked Rotor Amps 83 1 Full Load Amps. 1 4
Locked RotorAmps 4 6
, •
POWER EXHAUST ACCESSORY (3 7' FILTERS REFRIGERANT (2)
IF iekt Insisted Power Exhaust)
Type
Phase N/A Type Throwaway
Horsepower N/A Furnished. Yes Factory Charge
Motor Speed(RPM) N/A Number 2 Circuit al 3 tx2"
Full Load Amps: NA Recommended 20"ii 35"x 2" Circuit 4'2 N/A
Locked Rotor Amps, N/A
NOTES:
1 Maximum(HACR)Circuit Breaker sing in for installations in the United Slates only.
2 Refrigerant charge is an approximate value For a more precise value,see unit nameplate and service instructions
3 Value does not include Power Exhaust Accessory
4 Value includes oversized motor
5 Value does not include Power Exhaust Accessory
6 EER is riled al AHRI conditions and in accordance with DOE lest procedures.
7 tnstaltatmn of the power exhaust kit will affect unit level MCA and could affect MOP slang having a direct impact on existing field wiring and urnl protection devices Ilia
change in MCANOP is the sole responsidely of the felt;installing party Tirane will not issue new nameplates as a result of ths power exhaust accessory
installation.FLA of the power exhaust kit option must be added to the MCA of Me unit for building supply conductor string determination.
2021-07-15 17:27:42Z Page 5 of 10
Job Nan*:D&B arosp
Pr»pared By,TrI ecT Heating&Cooling
U"" 'Imt Tcg.V4C 1
Cuanhty:1
INSTALLED ACCESSORIES NET WEIGHT DATA
ACCESSORY WEIGHTS
ECONOMIZER
MOTORIZED OUTSh7E AIR DAMPER -1
II
iC..
.,� � MANUAL OUTSIDE AIR DAMPER
�� BAROMETRIC RELIEF
((("' �. -.•. ``�` OVERSIZED MOTOR
:1,44
BELT DRIVE MOTOR
tl(f((i� • �� it11 POWER EXHAUST'
V%111��1 TTHROUGHT THE BASE ELECTRICAUGAS(FLOPS). .:S.r, % UNFT MOUNTED CIRCU1t BREAKER(FIOPS)
�`,�•'�..�•:•_..--� [ UNIT MOUNTED DISCONNECT(FLOPS)___......._...__..a._ ..�..----.-._...W..... .�....I_.-..._......._—_ ._......._J
POWERED CONVENIENCE OUTLET(FLOPS)
-. ... ..... -- - ---...----._....._*
e 1,AD HAIL GUARD.........................................__....._.........._..._.._..._................ -' ' ' —
SMOKE DETECTOR,SUPPLY t RETURN I L...__..._____............-'---
PACKAGED GAS I ELECTRICAL NOVAR CONTROL
_........_.._....._ON.T.R............._...................__....._... ._........._....._.__--..........._........_.. ---.._.__ —_..__..
CORNER WEIGHT STAINLESS STEEL HEAT EXCHANGER
LREHEAT -----.._-.___.__...__..__.._.._ .................____..._.._._..._.._.._.-_--1 .._.._..___- .---i
Economizer - 112 lbs. ROOF CURB
Field install - downflow only it
BASIC UNIT WEIGHTS I CORNER WEIGHTS 1 CENTER OF GRAVITTY
SHIPPING NET (Asi I 2050ib TO O 461b I(E)LENGHT (F)WIDTH
59801b 492.0ib i (13) 183.01b Ili) 58.01b 1 33* I 9'
NOTE:
1. All weights are approximate.
2. Weights for options that are not list referto Installation guide.
3. The actual weight are(elect on the unit nameplate.
'''',`` 4. Reorlo unit nameplate and installation guide for weights before scheduling transportation and installation
of unit
5. The weight shown represents the typical unit operating weight forthe configuration selected.Estimated
at*i-10 Sn of the nameplate weight„
��'\ 8. Verity weight,connection,and all dimension with installer documents before xrstatlatxxn.
_...--1....„ �``:*`'.,�ems.,^ 7. Corner weights are given for information only
_-' ,``�^.` 8. NetvSitppurg weight of optional accessories should be added to unt weight when ordering factory or field
,,-'�2 ',,�._` ��,,�� ,`, ,, �. installed accessories.
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PACKAGED GAS 1 ELECTRICAL
RIGGING AND CENTER OF GRAVITY
2021-07-15 17:27:42Z Page 6 of 10
Date: Weight: 112lbs (US) 50.8kg (Metric) Part Number: ECD-PRCOBCA-DYDB
MicroMet at :
Submitted to: Approved by: Notes:
Economizer- Economizer- Ultra Low Leak Economizer, Vertical Orientation, Belimo Zip - Single/Multiple Speed Electromechanical, Adjustable Dry Bulb Sensor,
Belimo Actuator. Painted Rain Hood With Aluminum Filter, Barometric Relief, All Necessary Panels And Hardware Included.
Controller and actuator ". `"'°S
located on this side of ,, .5
economizer. r
A
f•
i
f/w' 1 ���I.
I //� 19.5
_ ! it /.: ,
•
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" „.' Outside
,fr,p4sli. 0••• ,
' air sensor
1 ,yam - gd
f; ' �� f Stainless steel blade
r"`--- ^ a',,: side seal on return and
. ,� if, I outside air blades.
r c
4 '
r .,'":."' ..""'„,' . ) 4
l External, gear driven
dampers. l�'►" .
Side View
This Document Is The Property Of MicroMed Ku-Weirs And!s Delivered Upon The Express Condition That The Contents Wilt Not Be Dtsciosed Or Used W thooKu-Weirs"Written Consent.. Master Revision 0001 A
MicroMeti Reserves The Right To Discontinue,Or Change At Any Time,Specifications&Designs withort Any Notice incuaing Obligations
- Page Revision 0001 A
Indianapolis_3035 N.Shadeland Ave.,Indianapolis.IN 46226_800.MMC.HVAC^Sparks_905 Southern way.Sparks,NV 89431_800.884.4MMC—Longview_201 Kodak Blvd.,Longview.TX 75602_903.248.4800
. Date: Weight: 112Ibs (US) 50.8kg (Metric) Part Number: ECD-PRCOBCA-DYDB
MicroMetI RTU:
Submitted to: Approved by: Notes:
Economizer - Economizer- Ultra Low Leak Economizer, Vertical Orientation, Belimo Zip - Single/Multiple Speed Electromechanical, Adjustable Dry Bulb Sensor,
Belimo Actuator. Painted Rain Hood With Aluminum Filter, Barometric Relief, All Necessary Panels And Hardware Included.
Compliant Economizer:
1. Title 24:Economizers meet California Energy Commission Title 24-2013 2016 prescriptive section 140.4(damper leakage etc),and mandatory section 1202.1for Fault Detection
and Diagnostic controls(Zip Economizer BZE1245).
2. ASHRAE 90.1: Economizers meet ASHRAE 90.1-2013 2016 damper leakage requirements,and meet 2016 Fault Detection and Diagnosis requirements.
3. IECC: Economizers meet IECC 2012, IECC 2015,and IECC 20'18 for outside air,return air,and relief damper(when provided)leakage requirements,and IECC 2015 and 1ECU 2018
for Fault Detection and Diagnostic requirements. Note:IECC 2015 and IECC 2018 requires differential return air sensor,which must be ordered separately
4. AMCA:Outside air and return air(volume)dampers are AMCA Class IA rated at V w.g. Refer to MicroMetl NS1 catalog sheet on web site for details.Relief air dampers(when
provided)are also AMCA rated. Refer to GR1 series catalog sheet on web site for details.
Features:
• Gear driven design for trouble free operation,eliminating slippage and binding associated with standard linkage.
• Includes assembled rainhood with aluminum water entrainment filters in the outside air section_
• Rainhood is sloped for water run-off.
' ilftM444
• Power exhaust options available. AIR
PIXIGUI411.74
• Logic wiring is field supplied and installed between the commercial 2 stage thermostat and HVAC low voltage terminal board.
en wirulti,
0041+.4.
1i0014,1001
bitflairlI04.11t.WO,"
MicroMet1 Corporation
certifies that the models
GR1 and NS1 shown
herein are licensed to hair
the AMCA Seal.
The ratings shown are
based on tests and
procedures performed in
accordance with AMCA
Publication 511 and
comply with requirements
of the AMCA Certified
Ratings Programs.
The AMCA Certified
Ratings Seal applies
to Air Leakage and Air
Performance ratings.
•
This Document Is The Property Of IstcroMetl Corporation And to D&:vered Upon The Express Condition That The Contents MI Not Re Disclosed Or Used W,thodt MicroMetrs written Coronet Master Revision 0001A
Microktetl Reserves The P. To Olscontinoe,Or Charge At Any rime,Specrficabons&Designs Without Any Notice incornng Obligation Page Revision 0001A
Indianapolis_3035 N.Shadeland Ave.,Indianapolis,IN 46226_800.MMC.HVAC Sparks_905 Southern Way,Sparks,NV 89431_800.884.4MMC••Longview_201 Kodak Blvd.,Longview,TX 75602_903.248.4800
„,.., Job Name:Er&6 Group
Tp , Prepared By.TOTech Hearing&CooIrne
OUant:tY I
CLEARANCE FROM TOP OF UNIT 72”
CLEARANCE 36"
CLEARANCE 48"
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-,1 <"''-....•DOWN FLOW CLEARANCE 36"
HORIZONTAL CLEARANCE 18"
CLEARANCE 36"
PACKAGED GAS/ELECTRIC
CLEARANCE
ROOF OPEN IN G—,,,,,
UNIT OUTLINE-- N,
—1-
37" 44 1/2"
..E
e 40'
68 3116" .....
PACKAGED GAS I ELECTRIC
DOMFLOW TYPICAL ROOF OPENING
2021-07-15 17:27:42Z Page 7 of 10
•
General
The units shall be convertible airflow. The operating range shall be between 115°F and 0°F in cooling
as standard from the factory for units with microprocessor controls. Operating range for units with
electromechanical controls shall be between 115°F and 40°F. Cooling performance shall be rated in
accordance with ARI testing procedures. All units shall be factory assembled, internally wired, fully
charged with R-410A, and 100 percent run tested to check cooling operation, fan and blower rotation,
and control sequence before leaving the factory. Wiring internal to the unit shall be colored and
numbered for simplified identification. Units shall be cULus listed and labeled, classified in accordance
for Central Cooling Air Conditioners.
Casing
Unit casing shall be constructed of zinc coated, heavy gauge, galvanized steel. Exterior surfaces shall
be cleaned, phosphatized, and finished with a weather-resistant baked enamel finish. Unit's surface
shall be tested 672 hours in a salt spray test in compliance with ASTM B117. Cabinet construction
shall allow for all maintenance on one side of the unit. Service panels shall have lifting handles and be
removed and reinstalled by removing two fasteners while providing a water and air tight seal. All
exposed vertical panels and top covers in the indoor air section shall be insulated with a cleanable foil-
faced, fire-retardant permanent, odorless glass fiber material. The base of the unit shall be insulated
with 1/8", foil-faced, closed-cell insulation. All insulation edges shall be either captured or sealed. The
unit's base pan shall have no penetrations within the perimeter of the curb other than the raised 1 1/8"
high downflow supply/return openings to provide an added water integrity precaution, if the
condensate drain backs up. The base of the unit shall have provisions for forklift and crane lifting, with
forklift capabilities on three sides of the unit.
Unit Top
The top cover shall be one piece construction or, where seams exist, it shall be double-hemmed and
gasket-sealed. The ribbed top adds extra strength and enhances water removal from unit top.
Filters
Throwaway filters shall be standard on all units. Optional 2-inch MERV 8 and MERV 13 filters shall
also be available.
Compressors
All units shall have direct-drive, hermetic, scroll type compressors with centrifugal type oil pumps.
Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10
percent of unit nameplate voltage. Internal overloads shall be provided with the scroll compressors.
Dual compressors are outstanding for humidity control, light load cooling conditions and system back-
up applications. Dual compressors are available on 71/2-10 ton models and allow for efficient cooling
utilizing 3-stages of compressor operation for all high efficiency models.
Indoor Fan
The following units shall be equipped with a direct drive plenum fan design (T/YSC120F,T/YHC074F,
T/YHC092F,T/YHC1 02F, 120F). Plenum fan design shall include a backward-curved fan wheel along
with an external rotor direct drive variable speed indoor motor. All plenum fan designs will have a
variable speed adjustment potentiometer located in the control box.
3 to 5 ton units (high efficiency 3-phase with optional motor) are belt driven, FC centrifugal fans with
adjustable motor sheaves. 3 to 5 ton units (standard and high efficiency 3-phase) have multispeed,
direct drive motors. All 6 to 81/2 ton units (standard efficiency) shall have belt drive motors with an
adjustable idler-arm assembly for quick-adjustment to fan belts and motor sheaves. All motors shall be
thermally protected. All 10 tons, 6 ton (074), 71/2 to 81/2 (high efficiency) units have variable speed
direct drive motors. All indoor fan motors meet the U.S. Energy Policy Act of 1992 (EPACT).
Outdoor Fans
The outdoor fan shall be direct-drive, statically and dynamically balanced, draw-through in the vertical
discharge position. The fan motor shall be permanently lubricated and shall have built-in thermal
overload protection.
2021-07-15 17:27.42Z Page 8 of 10
Job Norm,. B 5ro p
Hr pa ea By To tech Heating&Ga-J:og
lin Tng:Y4C 1
Quart ty:
Evaporator and Condenser Coils
Internally finned, 5/16" copper tubes mechanically bonded to a configured aluminum plate fin shall be
standard. Evaporator coils are standard for all 3 to 10 ton standard efficiency models. Microchannel
condenser coils are standard for all 3 to 10 ton standard efficiency models and 4, 5, 6, 7.5, 8.5 ton high
efficiency models. The microchannel type condenser coil is not offered on the 4 and 5 ton
dehumidification model. Due to flat streamlined tubes with small ports, and metallurgical tube-to-fin
bond, microchannel coil has better heat transfer performance. Microchannel condenser coil can
reduce system refrigerant charge by up to 50% because of smaller internal volume, which leads to
better compressor reliability. Compact all-aluminum microchannel coils also help to reduce the unit
weight. These all aluminum coils are recyclable. Galvanic corrosion is also minimized due to all
aluminum construction. Strong aluminum brazed structure provides better fin protection. In addition,
flat streamlined tubes also make microchannel coils more dust resistant and easier to clean. Coils
shall be leak tested at the factory to ensure the pressure integrity. The evaporator coil and condenser
coil shall be leak tested to 600 psig. The assembled unit shall be leak tested to 465 psig. The
condenser coil shall have a patent pending 1+1+1 hybrid coil designed with slight gaps for ease of
cleaning. A plastic, dual-sloped, removable and reversible condensate drain pan with through-the-base
condensate drain is standard.
Controls
Unit shall be completely factory-wired with necessary controls and contactor pressure lugs or terminal
block for power wiring. Unit shall provide an external location for mounting a fused disconnect device.
A choice of microprocessor or electromechanical controls shall be available. Microprocessor controls
provide for all 24V control functions. The resident control algorithms shall make all heating, cooling,
and/or ventilating decisions in response to electronic signals from sensors measuring indoor and
outdoor temperatures. The control algorithm maintains accurate temperature control, minimizes drift
from set point, and provides better building comfort. A centralized microprocessor shall provide anti-
short cycle timing and time delay between compressors to provide a higher level of machine
protection. 24-volt electromechanical control circuit shall include control transformer and contactor
High Pressure Control
All units include High Pressure Cutout as standard.
Phase monitor
Phase monitor shall provide 100% protection for motors and compressors against problems caused by
phase loss, phase imbalance, and phase reversal. Phase monitor is equipped with an LED that
provides an ON or FAULT indicator. There are no field adjustments. The module will automatically
reset from a fault condition.
Refrigerant Circuits
Each refrigerant circuit offer thermal expansion valve as standard. Service pressure ports, and
refrigerant line filter driers are factory-installed as standard. An area shall be provided for replacement
suction line driers.
Gas Heating Section
The heating section shall have a progressive tubular heat exchanger design using stainless steel
burners
and corrosion resistant steel throughout. An induced draft combustion blower shall be used to pull the
combustion products through the firing tubes. The heater shall use a direct spark ignition (DSI) system.
On initial call for heat, the combustion blower shall purge the heat exchanger for 20 seconds before
ignition After three unsuccessful ignition attempts, the entire heating system shall be locked out until
manually reset at the thermostat/zone sensor. Units shall be suitable for use with natural gas or
propane (field-installed kit) and also comply with the California requirement for low NOx emissions
(Gas/Electric Only).
***ATTENTION***
For installation in SCAQMD only: This furnace does not meet the SCAQMD Rule 1111 14 ng/J NOx
emission limit, and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the
Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.
Sequence of Operation (if applied in a SINGLE-ZONE CONSTANT-VOLUME SYSTEM or a
CHANGEOVER BYPASS SYSTEM)
B. SINGLE-ZONE CONSTANT-VOLUME SYSTEM
2021-07-15 17:27:42Z Page 9 of 10
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1. OCCUPIED HEAT/COOL:
The RTU shall operate the supply fan continuously and modulate (or cycle) compressors, modulate (or
stage) heat, and/or enable airside economizing to maintain zone temperature at setpoint. The OA
damper shall open to bring in the required amount of ventilation.
2. MORNING WARM-UP/PRE-COOL:
The RTU shall operate the supply fan and modulate (or cycle) compressors or modulate (or stage)
heat to raise/lower zone temperature to its occupied setpoint. The OA damper shall remain closed,
unless economizing.
D. CHANGEOVER BYPASS SYSTEM
1. OCCUPIED HEAT/COOL:
Each VAV terminal shall use pressure-independent control, with airflow measurement, to vary primary
airflow to maintain zone temperature at its occupied setpoint. The RTU shall modulate the bypass
damper to maintain duct static pressure at setpoint and modulate (or cycle) compressors, modulate (or
stage) heat, and/or enable airside economizing based on current zone cooling/heating demands. The
OA damper shall open to bring in the required amount of ventilation.
2. MORNING WARM-UP/PRE-COOL:
Each VAV terminal unit shall vary primary airflow to raise/lower zone temperature to its occupied
setpoint. The RTU shall modulate the bypass damper to maintain duct static pressure at setpoint and
modulate (or cycle) compressors or modulate (or stage) heat based on current zone cooling/heating
demands. The OA damper shall remain closed, unless economizing.
3. COOLING/HEATING CHANGEOVER LOGIC:
The System Controller shall determine the overall system cooling/heating mode based on "voting"
from each zone. When the majority of zones require cooling, the RTU shall operate in cooling mode
and any zone that requires heating shall reduce primary airflow to minimum. When the majority of
zones require heating, the RTU shall operate in heating mode and any zone that requires cooling shall
reduce primary airflow to minimum.
2021-07-15 17:27:42Z Page 10 of 10
Si 1
in
Existing RTU-6 Y.
YSC048SQ201.0d
Total Weight: 532 lbs.
Tag: SUBMITTAL
All dimensions are in inches/millimeters. Standard Efficiency
4 Ton
Packaged
,.-TOP PANEL Gas/Electric
EVAPORATOR SECTION /` Convertible
ACCESS PANEL�\ \,/` ,--CONDENSER FAN YSC048A
\,\I V > _., 71
/ l32
�I 6191AIM 4 Ton Standard Efficiency—Low and Medium Heat
4 1/4'
106 MM--I
l
FLTERNFTE CONDENSATEDRAIN ---���, - I
CONNECTION 3J4•!4 NPT DIA,Hq.E AII i
����/ 4 1' lt 'Y
l ill RO R COP.
--__...UNIT CONTROL WIRE
77
.� 201J4' 7:6'(^_2MM'1 DIA.HOLE
9fl M0.1 /f Si4MA1 SE7.CEGt3 POREACCESS
-.,'l✓I>ji ! - !AN'135MM)OLE.HOLE
1775MM 1073 MM /
/ y '. I I f06MM `.... UNIT POWER WIRE13J32'W26MM)DIA.HOLE
` 5 16'
`�. � ,r\•� �/769/I MM
/ 438'44 I i 7&6' ,,
143 MM,• j!%194 MIA! L9 sr u vt'
/I2 NPT GAS CONNECTION-' /• 2 "I.
1124 MM
i/ K//'CONTROL AND COMPRESSOR
ACCESS PANEL
....TOP PANEL
/''
EVAPORATOR SECTION / \�� /
ACCESS PANEL `\
\ CONDENSER FAN\
A,AIM
4 1/4•
108 MM- .I
�5 II
ALTERNATE CONDENSATE.DRAINE -- 1114 _ y
CONNECTION 3/4•t4 NPT CIA.HOLE .3p d -" I II„1 l I `7-"------CONCENSER COIL
= Qy / f ::I I-41
/ ! lam-'/ _.�_UNR CONTROL VARE
j 1 �• (� 7;6'(22MM1 DIA.HOLE
��'\\\\ 1 2Q 1J4i II%
23 91 f•' t
4 Ton Standard Efficiency— High Heat K. 'y 596 AIM /; 5 R�A:/, SERVICE GAUGE PORT ACCESS
'1 't-;: } .':% ,3ir(3SMM)DIA.HOLE
/ / -���I 41/4
\697J6" -'421/41 / j .,I// '+1 106A1M•
1775MM 1073MM /' / Y-�/ '� '�_UNIT POWER AVE
I'',.... / ! _5 B'16' 1 3/3T(25MM)DIA.HOLE
47 MM
/ / ;'I
65J6' _'S/6•
j.1y/ t43MM, . 194MM
L 95J9' 441a•�
244 MM 1124 MM
1/2 NPT GAS CONNECTION--/
CONTROL AND COMPRESSOR
ACCESS PANEL
Table 1—Unit Wiring-Standard Efficiency
Standard Indoor Fan Motor Oversize Indoor Fan Motor Belt Drive Indoor Fan Motor
Unit Minimum Maximum Fuse Minimum Maximum Fuse Minimum Maximum Fese
All dimensions are in inches/millimeters
ex___.1 am_......44,_____
4,
N
mks. , • 7,,, •
SUPPLY
....--. 1.,.-",
4117W . "----- '''\\\\\\\
24. RETURN .
0101011
i . 011t4t1)))))))1)A
Downflow Airflow Supply and Return;
1..
Through the Base Utilities ‹,
I 27 or
i RI MAI
79U CONDENSATE I 1 24 e 3" i vr
i Ara. 31V1V 105 MI
as
I ismixe_
507 MM T101100011 THE ThE BABE 1311 MI
OMEGAS ELECTMCAL 1.._
2531.05
____„......
__.., 3 3/16'
,,,,----- 81MM
< .
,„ 6.-:(;‘,f, (ttks.(,---,7,- -:4••••.:;;,gAgiV!:: '
:: -____ •:.•
„ 1 saimm
(40, i- !
11. li I 11 il 1 1 111 1 i i I •
.•
- . . . . . ... 1.4 3,1' RETURN
. i'..
...
375MM
121MM
Horizontal Airflow Supply and Return r ..,
.:._
I i
' .• ' ij II 1 i I iii 1 I 1 i • _,..------ 337MM
1 //
34-14 NPT ALTERNATE
DRAIN CONNECTION
CLEARANCE
CLEARANCE 37"(940 MM) 4ip
Al - HORIZONTALF11- "(457 MM)
- E36. 1474)
-...,..,....1TYPICAL ROOF OPENING
CLEARANCE FROM .....
TOP OF UNIT 72^
>'... ......
(94M)07M s'"'",..„......,
(1732 MAI) -..„........,. .............7:<„,..„.„ .._.„.„.........., ................„..,,,,
I .„... .....,„....... „.._.„_. ..<....„:„.....,.....,>
Unit Clearance and Roof Opening > (1130 UM/tit
CLEARANCE 48`(1219 MM) ..„.. CLEARANCE 36"(914 MM)
1
All dimensions are in inches.
CENTER OF GRAVITY
.i -- LENGTH -►
A �` B
t •
CENTER OF O
GRAVITY
•
WIDTH
CENTER OF GRAVITY
..:.:,..v ..;.,-...- �.-•evro»sr-.r.a'a..yl�llrp
uy
Table 3—Maximum UnitAnd Corner Weights(Lbs)And Center Of Gravity Dimensions(In.)
Unit Maximum Weights+4bsf ComerWefghts(LbdY1-> Center of Gravity(In.)
Tons Model No. Shipping _ A B C D Length Width
YSC042A 597 505 159 130 10 103 33 19
NOTE:
1. Corner weights are given for information only.
2. Weights are approximate.
r
Total Table 4— Factory-installed Options Net Weights
Combined 041,2
Weight Accessory Weight
--_� Economizer 26
J'32 lbs. *Barometric Relief 7
Motorized Outside Air Damper 20
Manual Outside Air Damper 16
Roof Curb 70
Oversized Motor 5
Belt Drive Motor 31
Smoke Detector,Return 7
Smoke Detector,Supply 5
Coil Guards 12
Hinged Doors 10
Powered Convenience Outlet 38
Through the Base Electrical 8
Through the Base Gas 5
Unit Mounted Circuit Breaker 5
Unit Mounted Disconnect 5
NOTES:
1.Weights for options not listed are>5 lbs.
2. Net weight should be added to unit weight when ordering
factory-installed accessories.