United CoolAir SCPAC5G Operating Manual
INSTALLATION AND OPERATION MANUAL
2–5-TON NARROW PORTABLE AIR CONDITIONING
& OPTIONAL HEATING UNIT
PAC2–5N*AS*
Serial Number ����������������������������
REV — 2/10/20
UNITED COOLAIR CORPORATION
SAMPLE
YORK, PA
MODEL NO. SCPAC5GxAS�3�24�16
SERIAL NUMBER 1610057
VOLTS 460 PHASE 3 CYCLE 60
COMP. LRA 351 EA QTY 2 RLA 53.6 EA
EVAP. MOTOR HP 15.0 FLA 35
ELEC. HEATER KW 15
MCA 25.8
MOP 30
FACTORY CHARGE R-410A 46 lb 0oz CKT1
46 lb 0oz CKT2
TEST PRESS. HISIDE 500 PSIG - LOSIDE 250 PSIG
COMPRESSOR MOTOR AND FAN ARE THERMALLY PROTECTED
USE COPPER CONDUCTORS ONLY.
EXT. STATIC PRESS - 0.1 TO 1.0 IN. WC.
MAX OUTPUT AIR TEMP. 200 DEG. F OR LESS
MIN. CLEARANCE TO COMBUSTIBLE SURFACES - 0 IN
9CA-6242
IDENTIFICATION OF YOUR UNIT
The Data Tag contains important information
on how identify your United CoolAir Unit.
See Figure 1 for more information on locating tag.
Subject to change without notice. 2 PAC2–5N*AS*
REV — 2/10/20
TABLE OF CONTENTS
IDENTIFICATION OF YOUR UNIT ...........................................................2
PAC3N1AS* – PRODUCT SPECIFICATIONS ..................................................4
PAC5N1AS* – PRODUCT SPECIFICATIONS ..................................................5
PAC5N3AS* – PRODUCT SPECIFICATIONS ..................................................6
PAC5N4AS* – PRODUCT SPECIFICATIONS ..................................................7
UNIT INSPECTION .......................................................................8
UNIT SETUP ............................................................................8
DUCT CONNECTIONS ...................................................................10
SYSTEM OPERATION ...................................................................10
UNIT SAFETY DEVICES .................................................................12
UNIT COMPONENTS ....................................................................13
REFRIGERATION SYSTEM COMPONENTS .................................................13
ROUTINE MAINTENANCE ................................................................14
WIRING DIAGRAM .....................................................................16
TROUBLESHOOTING GUIDE .............................................................17
APPENDIX – DRAWINGS AND SCHEMATICS
Electrical Diagram W/O Heat ................................................CA10296-A
Electrical Diagram W/ Heat .................................................CA10262-A
Product Drawing .........................................................CA14085B
WARNING: HIGH VOLTAGE – DISCONNECT POWER BEFORE SERVICING
DISCONNECT POWER
Failure to disconnect power before
servicing could lead to severe
personal injury or death.
RE-CONNECT ALL GROUNDS
All parts of this product capable of conducting electrical current
are grounded. If grounding wires, screws, straps, clips, nuts,
or washers used to complete a path to ground are removed for
servicing, they must be reconnected at their original location.
Subject to change without notice. 3 PAC2–5N*AS*
REV — 2/10/20
PAC3N1AS* – PRODUCT SPECIFICATIONS
Manufactured by
United CoolAir Corp.
491 E. Princess Street - York, PA 17403
Ph.: 717-843-4311 or 877-905-1111
Fax: 717-854-4432
Email: uca@unitedcoolair.com
TECHNICAL DATA
PAC3GN1ASA[kW]
Total Capacity [1] BTUH 35,200
Sensible Capacity [1] BTUH 25,300
Cooling Operating Range [3]
65
o
F - 120o F
Refrigerant Type R-410a
Compressor Type (Qty) Scroll (1)
Filter Type Pleated Disposable, MERV 8
Size 24 x 24 x 2
Qty 1
Evaporator Coil Face Area Sq. Ft. 3.7
Evaporator Coil Rows Deep 2
Evaporator CFM 1,200
ESP 1.0
HP 0.75
Condenser Coil Face Area Sq. Ft. 6.39
Condenser Coil Rows Deep 2
Condenser CFM 1,800
ESP 1.00
Condenser Air Movement Type
Condenser Motor HP (Qty)
Electrical Data
208/230-1-60 FLA
MCA
kW [3]
Heater Type (Optional) Open Wire
Available Electric Heat [4] kW / Stages 10 / 1
208/230-1-60 FLA 52.0
MCA 64.9
kW [3] 12
Unit Dimensions Inches 67" L x 29.5" W x 54.5" H
Approximate Net Unit Weight
Lbs.
[1] Indoor Entering Air 80o F DB / 67o F WB with 95o F Outdoor Ambient
[2] Outdoor Entering Air 47
o
F DB / 43o F WB with 70o F Indoor Return Air
[3] Operating range is dependent on airflow, and Return Air Temperature.
[3] kW at 0.8 Power Factor and 220 Volts
[4] Electric heater FLA listed at 220 volts.
[5] Does not include options.
Heating with Electric Heat
700 [5]
Belt Drive DWDI
1.0 (1)
Cooling Only
34.8
40.2
7.1
Subject to change without notice. 4 PAC2–5N*AS*
REV — 2/10/20
PAC5N1AS* – PRODUCT SPECIFICATIONS
COOLING MODE
Design Indoor Dry Bulb / Wet Bulb .............................................................................................................................................. 80°F / 67°F
Design Outdoor Ambient Temperature ................................................................................................................................................. 115°F
Total Cooling Capacity ..............................................................BTU/HR ............................................................................................ 57,100
Sensible Cooling Capacity.................................................................................................................................................................. 41,200
Minimum Indoor Ambient Temperature ...................................................................................................................................................65°F
Design Return Air Dry Bulb.....................................................................................................................................................................80°F
Design Return Air Relative Humidity ...................................................................................................................................................... 50%
Approximate Supply Air Flow Rate ................................................................................................................................................2000 CFM
Rated External Static Pressure ........................................................................................................................................................ 1.5” w.c.
HEATING MODE
Heating Capacity ......................................................................BTU/HR ........................................................................................... 55,700
POWER REQUIREMENTS
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/1/60
Minimum Circuit Ampacity Cool/Heat unit ..................................(Amps) ................................................................................................ 55.8
*Dehumidication Option ............................................................(Amps) ..................................................................................................116
Max Overcurrent Protection Cool/Heat unit ................................(Amps) ................................................................................................... 90
Max Overcurrent Protection *Dehumidication option ................(Amps) ................................................................................................. 136
COMPRESSOR
Type .............................................................................................................................................................................................5 Ton Scroll
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/1/60
RLA .............................................................................................(Amps) ................................................................................................ 30.1
LRA .............................................................................................(Amps) ................................................................................................. 158
CONDENSER BLOWER MOTOR
Horsepower ................................................................................................................................................................................................. 2
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/1/60
FLA .............................................................................................(Amps) ................................................................................................. 11.2
Speed ............................................................................................ RPM ............................................................................................... 3450
EVAPORATOR BLOWER MOTOR
Horsepower .............................................................................................................................................................................................. 1.5
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/1/60
FLA .............................................................................................(Amps) .................................................................................................. 6.8
Speed ............................................................................................ RPM ............................................................................................... 3450
REFRIGERANT
R-410 ............................................................................................................................................................................................ 6 lbs. 9 oz.
Low Pressure................................................................70 PSIG Cutout ............................................................................. 100 PSIG Reset
High Pressure ............................................................. 625 PSIG Cutout ................................................................................. Manual Reset
Suction Operating Pressure .........................................104 PSIG Low 1 .............................................................................. 145 PSIG High
Discharge Operating Pressure ......................................290 PSIG Low1 .............................................................................. 600 PSIG High1
Subcooling ..................................................... @ approx. 80 °F ambient ......................................................................................... 10-12°F
DIMENSIONS AND WEIGHT
Height/Width/Length .............................................................................................................................................. Refer to Product Drawing
Approximate Weight ........................................................................................................................................................................ 710 lbs.*
*Readings are dependent upon ambient conditions; numbers listed are approximate
1
1
Subject to change without notice. 5 PAC2–5N*AS*
REV — 2/10/20
PAC5N3AS* – PRODUCT SPECIFICATIONS
COOLING MODE
Design Indoor Dry Bulb / Wet Bulb .............................................................................................................................................. 80°F / 67°F
Design Outdoor Ambient Temperature ................................................................................................................................................ 115°F
Total Cooling Capacity ..............................................................BTU/HR ............................................................................................ 57,100
Sensible Cooling Capacity........................................................BTU/HR ............................................................................................ 41,200
Minimum Indoor Ambient Temperature .................................................................................................................................................. 65°F
Design Return Air Dry Bulb.....................................................................................................................................................................80°F
Design Return Air Relative Humidity ...................................................................................................................................................... 50%
Approximate Supply Air Flow Rate ...............................................................................................................................................2000 CFM
Rated External Static Pressure ................................................BTU/HR ......................................................................................... 1.5” w.c.
HEATING MODE
Heating Capacity ......................................................................BTU/HR ............................................................................................ 55,700
POWER REQUIREMENTS
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/3/60
Minimum Circuit Ampacity Cool/Heat Unit ..................................(Amps) ................................................................................................ 36.7
*Dehumidication Option..............................................(Amps) ............................................................................................... 87.1
Max Overcurrent Protection Cool/Heat Unit ...............................(Amps) .................................................................................................. 40
*Dehumidication Option..............................................(Amps) .................................................................................................. 90
COMPRESSOR
Type .............................................................................................................................................................................................5 Ton Scroll
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/3/60
RLA .............................................................................................(Amps) ................................................................................................ 20.5
LRA .............................................................................................(Amps) ................................................................................................. 155
CONDENSER BLOWER MOTOR
Horsepower ............................................................................................................................................................................................... 2
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/3/60
FLA .............................................................................................(Amps) ............................................................................................ 5.8-5.4
Speed ............................................................................................ RPM ............................................................................................... 3450
EVAPORATOR BLOWER MOTOR
Horsepower ............................................................................................................................................................................................ 1.5
Voltage / Phasing / Frequency.................................................................................................................................................. 208-230/3/60
FLA .............................................................................................(Amps) ............................................................................................... 5.2-5
Speed ............................................................................................ RPM ............................................................................................... 3450
REFRIGERANT
R-410 ............................................................................................................................................................................................ 6 lbs. 9 oz.
Low Pressure................................................................70 PSIG Cutout ............................................................................ 100 PSIG Reset
High Pressure ............................................................. 625 PSIG Cutout ................................................................................ Manual Reset
Suction Operating Pressure .........................................104 PSIG Low 1 .............................................................................. 145 PSIG High
Discharge Operating Pressure .....................................290 PSIG Low 1 .............................................................................. 600 PSIG High1
Subcooling @ approx. 80 °F ambient ........................................................................................................................................... 10-12°F
1
1
DIMENSIONS AND WEIGHT
Height/Width/Length .............................................................................................................................................. Refer to Product Drawing
Approximate Weight ..........................................................................................................................................................................710 lbs.
*Readings are dependent upon ambient conditions; numbers listed are approximate
Subject to change without notice. 6 PAC2–5N*AS*
REV — 2/10/20
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