Carrier 50PG08 User manual

1
50PG08---16
Single Package Rooftop units
Electric Cooling with PURONR(R---410A) Refrigerant
and Electromechanical Controls
Installation Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 1........................
INSTALLATION 2...................................
Step 1 -- Plan for Unit Location 2.....................
Step 2 -- Provide Unit Support 2......................
Step 3 -- Rig and Place Unit 2........................
Step 4 -- Field Fabricate Ductwork 11..................
Step 5 -- Make Unit Duct Connections 11...............
Step 6 -- Install External Trap for Condensate Drain 11.....
Step 7 -- Make Electrical Connections 12................
Step 8 -- Optional EconoMi$er IV 29..................
Step 9 -- Install All Accessories 36.....................
PRE--START--UP 37..................................
START--UP 37.......................................
SERVICE 47........................................
TROUBLESHOOTING 55.............................
UNIT START--UP CHECKLIST 58......................
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install, repair,
or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance functions
of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to the unit,
and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves.
Recognize safety information. This is the safety--alert symbol
. When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before performing service or maintenance operations
on unit, turn off main power switch to unit and install
lockout tag. Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit
rating plate.
!WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
Puron (R--410a) refrigerant systems operate at higher
pressures than standard R--22 systems. Do not use R--22
service equipment or components on Puron refrigerant
equipment.
!WARNING
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
1. Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, personal
injury, or loss of life. Refer to the User’s Information
Manual provided with this unit for more details.
2. Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
!WARNING

2
IMPORTANT: Units have high ambient operating limits. If
limits are exceeded, the units will automatically lock the
compressor out of operation. Manual reset will be required to
restart the compressor.
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install, repair,
or service air-conditioning equipment.
INSTALLATION
Step 1 —Plan for Unit Location
Select a location the unit and its support system (curb or other)
that provides minimum clearances required for safety, unit
performance and service access below, around and above unit as
specified in unit drawings. Consider also the effect of adjacent
units.
Do not install unit in an indoor location. Do not locate air inlets
near exhaust vents or other sources of contaminated air. Although
unit is weatherproof, guard against water from higher level runoff
and overhangs.
Select a unit mounting system that provides adequate height to
allow installation of condensate trap per requirements. Refer to
Step 6 — Install External Trap for Condensate Drain for
required trap dimensions.
Roof Mount
Check building codes for weight distribution requirements. Unit
operating weight is shown in Tables 1 and 2.
Step 2 —Provide Unit Support
Roof Curb
Assemble or install accessory roof curb in accordance with
instructions shipped with this accessory. See Fig. 1A and 1B.
Install insulation, cant strips, roofing, and counter flashing as
shown. Ductwork can be installed to roof curb before unit is set
in place. Ductwork must be attached to curb and not to the unit.
Curb must be level. This is necessary to permit unit drain to
function properly. Unit leveling tolerance is 1/16 in. per linear ft
in any direction. Refer to Accessory Roof Curb Installation
Instructions for additional information as required. When
accessory roof curb is used, unit may be installed on class A, B,
or C roof covering material. Carrier roof curb accessories are for
flat roofs or slab mounting.
IMPORTANT: The gasketing of the unit to the roof curb is
critical for a watertight seal. Install gasket with the roof curb as
shown in Fig. 1, 2 and 5. Improperly applied gasket can also
result in air leaks and poor unit performance. Do not slide unit to
position on roof curb.
Alternate Unit Support
When a curb cannot be used, install unit on a noncombustible
surface. Support unit with sleepers, using unit curb support area.
If sleepers cannot be used, support long sides of unit with a
minimum of 3 equally spaced 4-in. x 4-in. pads on each side.
Step 3 —Rig and Place Unit
Inspect unit for transportation damage. See Tables 1 and 2 for
physical data. File any claim with transportation agency.
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal
injury, death and property damage.
All panels must be in place when rigging and lifting.
!WARNING
Do not drop unit; keep upright. Use wooden top skid or spreader
bars over unit to prevent sling or cable damage. Rollers may be
used to move unit across a roof. Level by using unit rail as a
reference; leveling tolerance is 1/16 in. per linear ft in any
direction. Unit rigging weight is shown in Fig. 5.
Rigging holes are provided in the unit base rails as shown in Fig.
5. Refer to rigging instructions on unit. See Fig. 3 and 4 for panel
and filter locations.
After unit is in position, remove top crating and poly-
ethylene sheet.
50PG08---16

3
C06312
Fig. 1 --- Roof Curb Details (50PG08--14)
50PG08 ---16

4
C06306
Fig. 2 --- Roof Curb Details (50PG16)
50PG08 ---16

5
C06313
Fig. 3 --- Base Unit Dimensions (50PG08--14)
50PG08 ---16

6
C06314
Fig. 4 --- Base Unit Dimensions (50PG16)
50PG08 ---16

7
Hook rigging shackles through holes in base rail, as shown in
Detail A. Holes in base rails are centered around the unit
center of gravity. Use wooden top skid, when rigging, to
prevent rigging straps from damaging unit.
CAU OTI
ACCESS PANEL MUST BE IN PLACE WHEN RIGGING.
N- NOTICE TO R GGERS:I
UNIT
SIZE
A B C D E MAX. WEIGHT
in. mm in. mm in. mm in. mm in. mm lb kg
08---14 90.4 2296 36--- 54 914--- 1371 52.4 1331 48.0 1219 26.5 668 1572 713
16 100.4 2550 36---54 914--- 1371 52.4 1331 51.0 1245 35.0 889 1895 861
C06253
Fig. 5 --- 50PG Rigging Label
50PG08---16

8
Table 1—Physical Data (50PG08-14)
BASE UNIT 50PG 08 09 12 14
NOMINAL CAPACITY (Tons) 7.5 8.5 10 12.5
OPERATING WEIGHT (lb)
Unit* 1098 1105 1199 1310
Economizer
Vertical 57 57 57 57
Horizontal 59 59 59 59
Roof Curb
14-in. 180 180 180 180
24-in. 268 268 268 268
COMPRESSOR Fully Hermetic Scroll
Quantity 2 2 2 2
Oil Type Sys A Copeland 3MA Copeland 3MA Copeland 3MA Copeland 3MA
Sys B Copeland 3MA Copeland 3MA Copeland 3MA Copeland 3MA
Number of Refrigerant Circuits 2 2 2 2
Oil (oz) Sys A 42 42 66 56
Sys B 42 42 66 56
REFRIGERANT TYPE R-410A (PuronRefrigerant)
Expansion Device TXV TXV TXV TXV
Operating Charge (lb) Sys A 11.8 11.3 13.7 17.2
Sys B 11.8 11.3 13.7 17.2
Operating Charge Total All Systems (lb) 23.5 22.6 27.4 34.4
CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins, Face Split
Condenser A (Outer)
Rows...Fins/in. 217 217 217 317
Face Area (sq ft) 17.4 17.4 17.4 17.4
Condenser B (Inner)
Rows...Fins/in. 2...17 2...17 2...17 3...17
Face Area (sq ft) 17.4 17.4 17.4 17.4
CONDENSER FAN Propeller
QuantityDiameter (in.) 2...24 2...24 2...24 2...24
Nominal Cfm (Total, all fans) 7204 7204 8341 7300
Motor Hp 1/41/41/31/3
Nominal Rpm — High Speed 1100 1100 1100 1100
Nominal Rpm — Low Speed 900 900 900 900
EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Face Split
RowsFins/in. 315 315 415 415
Face Area (sq ft) 14.9 14.9 14.9 14.9
EVAPORATOR FAN Centrifugal Type, Belt Drive
QuantitySize (in.) Low 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15
High 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15
Type Drive Low Belt Belt Belt Belt
High Belt Belt Belt Belt
Nominal Cfm 3000 3400 4000 5000
Maximum Continuous Bhp Low 2.40 2.40 3.10 3.70
High 3.10 3.70 3.70 5.25
Motor Nominal Rpm 1725 1725 1725 1725
Motor Frame Size Low 56Y 56Y 56Y 56Y
High 56Y 56Y 56Y 56Y
Fan Rpm Range Low 568-771 568-771 690-893 690-893
High 812-1015 812-1015 852-1055 852-1055
Motor Bearing Type Ball Ball Ball Ball
Maximum Fan Rpm 1600 1600 1600 1600
Motor Pulley Pitch Diameter Range (in.) Low 2.8-3.8 2.8-3.8 3.4-4.4 3.4-4.4
High 4.0-5.0 4.0-5.0 4.6-5.6 4.6-5.6
Fan Pulley Pitch Diameter Low 8.5 8.5 8.5 8.5
High 8.5 8.5 8.5 8.5
Nominal Motor Shaft Diameter (in.) Low 5/85/87/87/8
High 7/87/87/87/8
BeltPitch Length (in.) Low 63.3 63.3 63.3 63.3
High 65.3 65.3 65.3 65.3
BeltType Low AX AX AX AX
High AX AX AX AX
Pulley Center Line Distance Min. (in.) Low 21.0 21.0 21.0 21.0
High 21.0 21.0 21.0 21.0
Pulley Center Line Distance Max. (in.) Low 23.4 23.4 23.4 23.4
High 23.4 23.4 23.4 23.4
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Low 41 41 41 41
High 41 41 41 41
Movable Pulley Maximum Full
Turns from Closed Position
Low 5 5 5 5
High 5 5 5 5
Factory Pulley Setting (rpm) Low 568 568 690 690
High 812 812 852 852
Fan Shaft Diameter at Pulley (in.) 1 1 1 1
HIGH-PRESSURE SWITCH (psig)
Cutout 660 10 660 10 660 10 660 10
Reset (Auto.) 505 20 505 20 505 20 505 20
LOW-PRESSURE SWITCH (psig)
Cutout 40 740 740 740 7
Reset (Auto.) 80 780 780 780 7
FREEZE PROTECTION THERMOSTAT (F)
Cutout 30 530 530 530 5
Reset (Auto.) 45 545 545 545 5
RETURN-AIR FILTERS Throwaway Type
QuantitySize (in.) 4...20 x 25 x 2 4...20 x 25 x 2 4...20 x 25 x 2 4...20 x 25 x 2
LEGEND
TXV — Thermostatic Expansion
*Aluminum evaporator/aluminum condenser coil fin material
50PG08---16

9
Table 2—Physical Data (50PG16)
BASE UNIT 50PG 16
NOMINAL CAPACITY (Tons) 15.0
OPERATING WEIGHT (lb)
Unit* 1771
Economizer 149
Humidi--MiZertSystem 64
Roof Curb
14--in. 240
24--in. 360
COMPRESSOR
Quantity
Oil Type Sys A
Sys B
Sys C
Number of Refrigerant Circuits
Oil (oz) Sys A
Sys B
Sys C
Fully Hermetic Scroll
3
Copeland 3MA
Copeland 3MA
Copeland 3MA
3
66
66
66
REFRIGERANT TYPE
Expansion Device
Operating Charge (lb) Sys A
Sys B
Sys C
Operating Charge Total All Systems (lb)
Unit with Humidi--MiZer System
Operating Charge (lb) Sys A
Sys B
Sys C
Total All Systems (lb)
R--410A (PuronRefrigerant)
TXV
13.5
15.0
15.0
43.5
18.8
16.7
18.8
54.3
CONDENSER COIL
Condenser A (Outer)
Rows...Fins/in.
Face Area (sq ft)
Condenser B (Inner)
Rows...Fins/in.
Face Area (sq ft)
Enhanced Copper Tubes, Aluminum Lanced Fins, Face Split
217
26.6
2...17
30.2
Humidi- MiZer Coil
Rows...Fins/in.
Face Area (sq ft)
Enhanced Copper Tubes, Aluminum Lanced Fins
1...17
22.2
CONDENSER FAN
QuantityDiameter (in.)
Nominal Cfm (Total, all fans)
Motor Hp
Nominal Rpm
Propeller
3...24
12,500
1/3
1100
EVAPORATOR COIL
RowsFins/in.
Face Area (sq ft)
Enhanced Copper Tubes, Aluminum Double--Wavy Fins, Face Split 315
22.2
EVAPORATOR FAN Centrifugal Type, Belt Drive
QuantitySize (in.) Low 1...15 x 15, 1...12 x 12
Mid--Low 1...15 x 15, 1...12 x 12
High 1...15 x 15, 1...12 x 12
Type Drive Low Belt
Mid--Low Belt
High Belt
Nominal Cfm 6000
Maximum Continuous Bhp Low 3.7
Mid--Low 5.25
High 7.5
Motor Frame Size Low 56
Mid--Low 56
HIgh S213T
Fan Rpm Range Low 710--879
Mid--Low 872--1066
High 1066--1260
Motor Bearing Type Ball
Motor Pulley Pitch Diameter Min (in.) Low 4.2
Mid--Low 4.2
High 5.2
Motor Pulley PItch Diameter Max (in.) Low 5.2
Mid--Low 5.2
High 6.2
Fan Pulley Pitch Diameter Low 10.2
Mid--Low 8.5
High 8.5
Nominal Motor Shaft Diameter (in.) Low 7/8
Mid--Low 7/8
High 13/8
BeltPitch Length (in.) Low 49.3
Mid--Low 47.8
High 43.8
50PG08---16

10
Table 2 — Physical Data (50PG16) (Cont)
EVAPORATOR FAN (Continued)
BeltType Low AX
Mid--Low BX
High BX
Pulley Center Line Distance Min. (in.) Low 14.2
Mid--Low 10.8
High 8.6
Pulley Center Line Distance Max. (in.) Low 10.8
Mid--Low 14.2
High 12
Speed Change (rpm) Low 34
Mid--Low 41
High 41
Movable Turns Low 5
Mid--Low 5
High 5
Factory Pulley Setting (rpm) Low 812
Mid--Low 983
High 1191
Fan Shaft Diameter at Pulley (in.) 13/16
HIGH- PRESSURE SWITCH (psig)
Cutout 660 10
Reset (Auto.) 505 20
RETURN- AIR FILTERS
QuantitySize (in.) Throwaway Type 8...20 x 20 x 2
LEGEND
TXV — Thermostatic Expansion
*Aluminum evaporator/aluminum condenser coil fin material
50PG08---16

11
Installation Onto Curb
The 50PG units are designed to fit on the accessory full perimeter
curb. In either case, correct placement of the unit onto the curb is
critical to operating performance. To aid in correct positioning,
place unit on roof curb to maintain 1/4-in. gap between the inside
of rail and roof curb on long sides and a 1/2-in. gap between the
inside of rail and roof curb on both duct and condenser ends.
Refer to Fig. 1--4, to assure proper duct opening alignment.
NOTE: Make sure the bottom drain condensate connection plug
is tight before installing unit on curb. See Step 6 — Install
External Trap for Condensate Drain.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
Do not slide unit to position when it is sitting on the curb.
Curb gasketing material may be damaged and leaks may
result.
CAUTION
!
Slab Mount (Horizontal Units Only)
Provide a level concrete slab that extends a minimum of 6-in.
beyond unit cabinet. Install a gravel apron in front of
condenser-coil air inlet to prevent grass and foliage from
obstructing airflow.
NOTE: Horizontal units may be installed on a roof curb if
required.
Step 4 —Field Fabricate Ductwork
On vertical units, secure all ducts to roof curb and building
structure. Do not connect ductwork to unit. For horizontal
applications, field-supplied flanges should be attached to
horizontal discharge openings and all ductwork secured to the
flanges. Insulate and weatherproof all external ductwork, joints,
and roof openings with counter flashing and mastic in accordance
with applicable codes.
Ducts passing through an unconditioned space must be
insulated and covered with a vapor barrier.
If a plenum return is used on a vertical unit, the return should be
ducted through the roof deck to comply with applicable fire
codes.
A minimum clearance is not required around ductwork. Cabinet
return-air static pressure (a negative condition) shall not exceed
0.35 in. wg with economizer or 0.45 in. wg without economizer.
Step 5 —Make Unit Duct Connections
Vertical Supply/Return Configuration
Unit is shipped in vertical supply/return configuration. Ductwork
openings are shown in Fig. 1--4. Attach the ductwork to the roof
curb. Do not attach duct directly to the unit.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
For vertical supply and return units, tools or parts could
drop into ductwork and cause an injury. Install a
90--degree turn in the return ductwork between the unit
and the conditioned space. If a 90--degree elbow cannot
be installed, then a grille of sufficient strength and
density should be installed to prevent objects from
falling into the conditioned space.
!WARNING
Units with electric heat require a 1-in. clearance for the first 24 in.
of ductwork. Outlet grilles must not lie directly below unit
discharge.
NOTE: A 90-degree elbow must be provided in the supply
ductwork to comply with UL (Underwriters’ Laboratories) codes
for use with electric heat.
Horizontal Supply/Return Applications (Sizes 08--14 Only)
Unit can be field-converted from vertical supply/return to
horizontal supply/return. Remove all screws securing horizontal
duct covers to duct panel. Save panels. Apply a bead of RTV
around flange of cover (painted side). Install duct covers in the
vertical duct openings in the basepan with the insulation side up.
Covers will drop into openings and can be secured using
field-supplied self-tapping screws. Ductwork can be attached to
duct flanges provided on unit. When securing ductwork to unit,
do not drill in area below bead or above top edge of duct
opening.
NOTE: On the 16 size, an accessory is available
(CRHORZON005AA00) to convert from vertical supply/return
to horizontal. Follow instructions provided with kit.
Step 6 —Install External Trap for Condensate
Drain
The unit’s 3/4-in. condensate drain connections are located on the
bottom and side of the unit. If the down drain is used, drill a
minimum of a 5/8-in. diameter hole but not larger than a 3/4-in.
diameter hole through the drain pan. A dimple of 2 mm in
diameter and 1.5 mm deep will be provided in the drain pan to
help locate the drill bit and to start the hole. Do not cut through
the PVC pipe threads. Unit discharge connections do not
determine the use of drain connections; either drain connection
can be used with vertical or horizontal applications. See Fig. 3
and 4 for locations.
When using the standard side drain connection, make sure the
plug (red) in the alternate bottom connection is tight before
installing the unit. (See Fig. 8.)
To use the bottom drain connection for a roof curb installation,
relocate the factory-installed plug (red) from the bottom
connection to the side connection. A 1/2-in. socket extension can
be used to remove the plug. (See Fig. 8.) The piping for the
condensate drain and external trap can be completed after the unit
is in place.
All units must have an external trap for condensate drainage.
Install a trap at least 4-in. deep and protect against freeze-up. If
drain line is installed downstream from the external trap, pitch the
line away from the unit at 1-in. per 10 ft of run. Do not use a pipe
size smaller than the unit connection (3/4-in.). (See Fig. 9 and 10.)
The 50PG units are provided with a removable condensate pan
for ease of cleaning. It is recommended that a union be placed
between the unit and condensate drainage to ease the removal of
the pan during servicing. Adequate clearance should be allowed if
removal of condensate pan is required. Allow 64 in. (08-14) or
93-in. (16) between condensate pan access panel and any
obstruction for complete removal.
50PG08---16

12
CONTROL BOX
AND COMPRESSOR
ACCESS DOOR
OUTDOOR AIR
SCREEN
(HIDDEN)
FILTER ACCESS
DOOR
INDOOR MOTOR
ACCESS DOOR
ECONOMIZER
HOOD
BAROMETRIC
RELIEF DAMPER
HOOD
ELECTRICAL
OPTIONS PANEL
BASEPAN CONNECTIONS
ACCESS PANEL
CONDENSER COIL
ACCESS PANEL
ELECTRIC
HEAT ACCESS
PANEL
C06315
Fig. 6 --- Panel and Filter Locations (50PG08--14)
ECONOMIZER HOODS
OUTDOOR AIR
SCREENS
(HIDDEN)
BAROMETRIC
RELIEF DAMPER
HOODS
ELECTRICAL
OPTIONS
PAN E L BASEPAN
CONNECTIONS
ACCESS PANEL
CONTROL BOX
AND COMPRESSOR
ACCESS DOOR
FILTER
ACCESS DOOR
ELECTRIC
HEAT ACCESS
PANEL
CONDENSER
COIL ACCESS
PANEL
C06309
Fig. 7 --- Panel and Filter Locations (50PG16)
Step 7 —Make Electrical Connections
Field Power Supply
All 208/230-v units are factory wired for 230-v power supply. If
the 208/230-v unit is to be connected to a 208-v power supply,
the transformer must be rewired by moving the black wire with
the 1/4-in. female quick connect from the 230-volt connection and
moving to the 200-volt 1/4-in. male terminal on the primary side
of the transformer.
Refer to unit label diagram for additional information.
All field wiring must comply with NEC (National Electrical
Code) and local codes. Size wire based on MCA (Minimum
Circuit Amps) on the unit informative plate. Leads are provided
for field wire connections. Use UL (Underwriters’ Laboratories)
approved copper/aluminum connector.
50PG08---16

13
INSERT SIDE DRAIN
PLUG FOR DOWN
DRAIN USE.
DRILL 5/8” DIA. (0.625 mm) HOLE
THRU FOR DOWN DRAIN USE.
C10321
Fig. 8 --- Condensate Drain Pan
OPTIONAL UNIONS
TO ALLOW FOR CONDENSATE
PAN REMOVAL
4" (102mm)
CONDENSATE
PAN ACCESS
PANEL
C06234
Fig. 9 --- External Trap for Condensate Drain
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4-in. trap is recommended.
C06235
Fig. 10 --- Condensate Drain Piping Details
When installing units, provide safety disconnect per NEC Article
440 or local codes. For non-fused disconnects, size the disconnect
according to the sizing data provided in the electrical data tables.
If a fused disconnect is used, determine the minimum size for the
switch based on the disconnect sizing data provided in the
electrical data tables and then coordinate the disconnect housing
size to accommodate the Maximum Overcurrent Protection
(MOCP) device size as marked on the unit informative plate. (See
Tables 3 and 4.)
See Fig. 11 for power wiring connection to unit leads and
equipment ground.
Route power and ground lines through control box end panel or
unit basepan (see Fig. 3 and 4) to connections as shown on unit
wiring diagram and Fig. 8. Factory leads may be wired directly to
the disconnect.
50PG08---16

14
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to the
unit.
The correct power phasing is critical to the operation of the
scroll compressors. An incorrect phasing will result in an
alarm and compressor operation lockout. Should this occur,
power phase correction must be made to the incoming
power. Damage to compressor could result.
CAUTION
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Unit cabinet must have an uninterrupted, unbroken
electrical ground to minimize the possibility of personal
injury if an electrical fault should occur. This ground
may consist of electrical wire connected to unit ground
lug in control compartment, or conduit approved for
electrical ground when installed in accordance with
NEC; ANSI/NFPA (National Fire Protection
Association), latest edition, and local electrical codes.
!WARNING
Field wiring must conform to temperature limitations for type “T”
wire. All field wiring must comply with NEC and local
requirements.
Operating voltage to compressor must be within voltage range
indicated on unit nameplate. Voltages between phases must be
balanced within 2%.
Unit failure as a result of operation on improper line voltage or
excessive phase imbalance constitutes abuse and may cause
damage to electrical components.
Field Control Wiring
Unit can be controlled with a Carrier-approved accessory
thermostat. Install thermostat according to the installation
instructions included with accessory. Locate thermostat assembly
on a solid interior wall in the conditioned space to sense average
temperature.
Route thermostat cable or equivalent single leads of colored wire
from subbase terminals through conduit into unit to low-voltage
connections as shown on unit label wiring diagram and in Fig.
12.
DISCONNECT
PER NEC
FACTOR
POWER
WIRING
FIELD
POWER
WIRING
11
12
13
21
22
23
EQUIP GND
C.A1
C06237
Fig. 11 --- Field Power Wiring Connections
TB1
REMOVABLE JUMPER
THERMOSTAT ASSEMBLY
RH RC Y1 Y2 W1 W2 G C
L X
R Y1 Y2 W1 W2 G C X
C06238
Fig. 12 --- Field Control Thermostat Wiring
NOTE: For wire runs up to 50 ft, use no. 18 AWG (American
Wire Gauge) insulated wire (35_Cminimum).For50to75ft,use
no. 16 AWG insulated wire (35_C minimum). For over 75 ft, use
no. 14 AWG insulated wire (35_C Minimum). All wire larger
than no. 18 AWG cannot be directly connected at the thermostat
and will require a junction box and splice at the thermostat.
Set heat anticipator settings as follows:
VOLTAGE STAGE 1
(W1) ON
STAGE 1 AND 2
(W1 AND W2) ON
All 0.2 0.4
Settings may be changed slightly to provide a greater degree of
comfort for a particular installation.
50PG08---16

15
Table 3—Electrical Data — Units Without Optional Powered Convenience Outlet
UNIT
50PG
NOMINAL
POWER
SUPPLY
VOLTS-PH-HZ
VOLTAGE
RANGE
COMPRESSOR
(EA.) OFM
FLA
IFM
FLA
POWER
EXHAUST
FLA
IFM
TYPE
ELECTRIC HEAT POWER SUPPLY DISCONNECT
SIZE
MIN MAX RLA LRA CRHEATER
PART NO. FLA NOMINAL KW* MCA MOCP† FLA LRA
08
208/230-3-60 187 253 13.5 88 1.5
5.2
—
Low
— — —/— 38.5/ 38.5 50/ 50 40/ 40 212/212
225A00 20.0/23.1 7.5/10.0 38.5/ 38.5 50/ 50 40/ 40 212/212
226A00 30.0/34.6 11.3/15.0 44.0/ 49.8 50/ 50 41/ 46 212/212
227A00 50.0/57.7 18.8/25.0 69.0/ 78.7 70/ 80 64/ 72 212/212
228A00 70.0/80.8 26.3/35.0 94.1/107.5 100/110 87/ 99 212/212
229A00 80.0/92.4 30.0/40.0 106.6/122.0 110/125 98/112 212/212
7.5 High
— — —/— 40.8/ 40.8 50/ 50 43/ 43 238/238
225A00 20.0/23.1 7.5/10.0 40.8/ 40.8 50/ 50 43/ 43 238/238
226A00 30.0/34.6 11.3/15.0 46.9/ 52.7 50/ 60 43/ 48 238/238
227A00 50.0/57.7 18.8/25.0 71.9/ 81.5 80/ 90 66/ 75 238/238
228A00 70.0/80.8 26.3/35.0 96.9/110.4 100/125 89/102 238/238
229A00 80.0/92.4 30.0/40.0 109.4/124.8 110/125 101/115 238/238
5.2
3.0
Low
— — —/— 41.5/ 41.5 50/ 50 44/ 44 216/216
225A00 20.0/23.1 7.5/10.0 41.5/ 41.5 50/ 50 44/ 44 216/216
226A00 30.0/34.6 11.3/15.0 47.8/ 53.6 50/ 60 44/ 49 216/216
227A00 50.0/57.7 18.8/25.0 72.8/ 82.4 80/ 90 67/ 76 216/216
228A00 70.0/80.8 26.3/35.0 97.8/111.3 100/125 90/102 216/216
229A00 80.0/92.4 30.0/40.0 110.3/125.7 125/150 101/116 216/216
7.5 High
— — —/— 43.8/ 43.8 50/ 50 46/ 46 242/242
225A00 20.0/23.1 7.5/10.0 43.8/ 43.8 50/ 50 46/ 46 242/242
226A00 30.0/34.6 11.3/15.0 50.6/ 56.4 60/ 60 47/ 52 242/242
227A00 50.0/57.7 18.8/25.0 75.7/ 85.3 80/ 90 70/ 78 242/242
228A00 70.0/80.8 26.3/35.0 100.7/114.2 110/125 93/105 242/242
229A00 80.0/92.4 30.0/40.0 113.2/128.6 125/150 104/118 242/242
460-3-60 414 506 6.4 39 0.8
2.6
—
Low
— — — 18.6 25 20 96
232A00 11.5 10.0 18.6 25 20 96
233A00 17.3 15.0 24.9 25 23 96
234A00 28.9 25.0 39.3 40 36 96
235A00 40.4 35.0 53.8 60 49 96
236A00 46.2 40.0 61.0 70 56 96
3.4 High
— — — 19.4 25 20 109
232A00 11.5 10.0 19.4 25 20 109
233A00 17.3 15.0 25.9 30 24 109
234A00 28.9 25.0 40.3 45 37 109
235A00 40.4 35.0 54.8 60 50 109
236A00 46.2 40.0 62.0 70 57 109
2.6
1.2
Low
— — — 19.8 25 21 99
232A00 11.5 10.0 19.8 25 21 99
233A00 17.3 15.0 26.4 30 24 99
234A00 28.9 25.0 40.8 45 38 99
235A00 40.4 35.0 55.3 60 51 99
236A00 46.2 40.0 62.5 70 57 99
3.4 High
— — — 20.6 25 22 112
232A00 11.5 10.0 20.6 25 22 112
233A00 17.3 15.0 27.4 30 25 112
234A00 28.9 25.0 41.8 45 38 112
235A00 40.4 35.0 56.3 60 52 112
236A00 46.2 40.0 63.5 70 58 112
575-3-60 518 632 6.4 30.0 0.8
2.0 —
Low
— — — 18.0 20 19 84
239A00 13.9 15.0 20.1 20 19 84
240A00 23.1 25.0 31.4 35 29 84
241A00 32.3 35.0 42.9 45 39 84
242A00 37.0 40.0 48.7 50 45 84
High
— — — 18.8 20 20 102
239A00 13.9 15.0 20.8 25 20 102
240A00 23.1 25.0 32.4 35 30 102
241A00 32.3 35.0 43.9 45 40 102
242A00 37.0 40.0 49.7 50 46 102
2.8 3.0
Low
— — — 18.1 20 19 86
239A00 13.9 15.0 23.6 25 22 86
240A00 23.1 25.0 35.1 40 32 86
241A00 32.3 35.0 46.7 50 43 86
242A00 37.0 40.0 52.4 60 48 86
High
— — — 18.9 25 20 98
239A00 13.9 15.0 24.6 25 23 98
240A00 23.1 25.0 36.1 40 33 98
241A00 32.3 35.0 47.7 50 44 98
242A00 37.0 40.0 53.4 60 49 98
50PG08---16

16
Table 3 — Electrical Data — Units Without Optional Powered Convenience Outlet (cont)
UNIT
50PG
NOMINAL
POWER
SUPPLY
VOLTS-PH-HZ
VOLTAGE
RANGE
COMPRESSOR
(EA.) OFM
FLA
IFM
FLA
POWER
EXHAUST
FLA
IFM
TYPE
ELECTRIC HEAT POWER SUPPLY DISCONNECT
SIZE
MIN MAX RLA LRA CRHEATER
PART NO. FLA NOMINAL KW* MCA MOCP† FLA LRA
09
208/230-3-60 187 253 16.0 91 1.5 5.2
—
Low
— — —/— 44.3/ 44.3 60/ 60 46/ 46 218/218
225A00 20.0/23.1 7.5/10.0 44.3/ 44.3 60/ 60 46/ 46 218/218
226A00 30.0/34.6 11.3/15.0 44.3/ 49.8 60/ 60 46/ 46 218/218
227A00 50.0/57.7 18.8/25.0 69.0/ 78.7 70/ 80 64/ 72 218/218
228A00 70.0/80.8 26.3/35.0 94.1/107.5 100/110 87/ 99 218/218
229A00 80.0/92.4 30.0/40.0 106.6/122.0 110/125 98/112 218/218
High
— — —/— 49.3/ 49.3 60/ 60 52/ 52 261/261
225A00 20.0/23.1 7.5/10.0 49.3/ 49.3 60/ 60 52/ 52 261/261
226A00 30.0/34.6 11.3/15.0 50.3/ 56.1 60/ 60 52/ 52 261/261
227A00 50.0/57.7 18.8/25.0 75.3/ 84.9 80/ 90 69/ 78 261/261
228A00 70.0/80.8 26.3/35.0 100.3/113.8 110/125 92/105 261/261
229A00 80.0/92.4 30.0/40.0 112.8/128.2 125/150 104/118 261/261
3.0
Low
— — —/— 47.3/ 47.3 60/ 60 50/ 50 222/222
225A00 20.0/23.1 7.5/10.0 47.3/ 47.3 60/ 60 50/ 50 222/222
226A00 30.0/34.6 11.3/15.0 47.8/ 53.6 60/ 60 50/ 50 222/222
227A00 50.0/57.7 18.8/25.0 72.8/ 82.4 80/ 90 67/ 76 222/222
228A00 70.0/80.8 26.3/35.0 97.8/111.3 100/125 90/102 222/222
229A00 80.0/92.4 30.0/40.0 110.3/125.7 125/150 101/116 222/222
High
— — —/— 52.3/ 52.3 60/ 60 55/ 55 265/265
225A00 20.0/23.1 7.5/10.0 52.3/ 52.3 60/ 60 55/ 55 265/265
226A00 30.0/34.6 11.3/15.0 54.0/ 59.8 60/ 60 55/ 55 265/265
227A00 50.0/57.7 18.8/25.0 79.0/ 88.7 80/ 90 73/ 82 265/265
228A00 70.0/80.8 26.3/35.0 104.1/117.5 110/125 96/108 265/265
229A00 80.0/92.4 30.0/40.0 116.6/132.0 125/150 107/121 265/265
460-3-60 414 506 7.1 46 0.8
2.6
—
Low
— — — 20.1 25 21 110
232A00 11.5 10.0 20.1 25 21 110
233A00 17.3 15.0 24.9 25 23 110
234A00 28.9 25.0 39.3 40 36 110
235A00 40.4 35.0 53.8 60 49 110
236A00 46.2 40.0 61.0 70 56 110
4.8 High
— — — 22.3 25 24 132
232A00 11.5 10.0 22.3 25 24 132
233A00 17.3 15.0 27.7 30 25 132
234A00 28.9 25.0 42.1 45 39 132
235A00 40.4 35.0 56.5 60 52 132
236A00 46.2 40.0 63.7 70 59 132
2.6
1.2
Low
— — — 21.3 25 22 113
232A00 11.5 10.0 21.3 25 22 113
233A00 17.3 15.0 26.4 30 24 113
234A00 28.9 25.0 40.8 45 38 113
235A00 40.4 35.0 55.3 60 51 113
236A00 46.2 40.0 62.5 70 57 113
4.8 High
— — — 23.5 30 25 134
232A00 11.5 10.0 23.5 30 25 134
233A00 17.3 15.0 29.2 30 27 134
234A00 28.9 25.0 43.6 45 40 134
235A00 40.4 35.0 58.0 60 53 134
236A00 46.2 40.0 65.2 70 60 134
575-3-60 518 632 5.6 37.0 0.8
2.0
—
Low
— — — 16.2 20 17 98
239A00 13.9 15.0 20.1 20 18 98
240A00 23.1 25.0 31.4 35 29 98
241A00 32.3 35.0 42.9 45 39 98
242A00 37.0 40.0 48.7 50 45 98
3.3 High
— — — 17.5 20 19 136
239A00 13.9 15.0 21.4 25 20 136
240A00 23.1 25.0 33.0 35 30 136
241A00 32.3 35.0 45.1 45 41 136
242A00 37.0 40.0 50.3 50 46 136
2.0
3.0
Low
— — — 19.1 25 20 92
239A00 13.9 15.0 23.6 25 22 92
240A00 23.1 25.0 35.1 40 32 92
241A00 32.3 35.0 46.7 50 43 92
242A00 37.0 40.0 52.4 60 48 92
3.3 High
— — — 19.9 25 21 104
239A00 13.9 15.0 24.6 25 23 104
240A00 23.1 25.0 36.1 40 33 104
241A00 32.3 35.0 47.7 50 44 104
242A00 37.0 40.0 53.4 60 49 104
50PG08---16

17
LEGEND
FLA --- F u l l L o a d A m p s
HACR --- Heating, Air Conditioning and Refrigeration
IFM --- Indoor (Evaporator) Fan Motor
LRA --- L o c k e d R o t o r A m p s
MCA --- Minimum Circuit Amps
MOCP --- Maximum Overcurrent Protection
NEC --- National Electrical Code
OFM --- Outdoor (Condenser) Fan Motor
RLA --- RatedLoadAmps
* Heater capacity (kW) is based on heater voltage of 208 v, 230 v, 480 v, or 600 v. If power
distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly.
{Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equip-
ment (refer to NEC Articles 430 and 440), the overcurrent protective device for the
unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is greater than
2%. Use the following formula to determine the percentage of voltage imbalance.
% Voltage Imbalance = 100 x
max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60
AB = 224 v
BC = 231 v
AC = 226 v
Average Voltage =
224 + 231 + 226
3
= 681
=3
227
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
(BC) 231 – 227 = 4 v
(AC) 227 – 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
% Voltage Imbalance = 100 x
4
227
= 1.76%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric
utility company immediately.
50PG08---16

18
Table 3 — Electrical Data — Units Without Optional Powered Convenience Outlet (cont)
UNIT
50PG
NOMINAL
POWER
SUPPLY
VOLTS-PH-HZ
VOLTAGE
RANGE
COMPRESSOR
(EA.) OFM
FLA
IFM
FLA
POWER
EXHAUST
FLA
IFM
TYPE
ELECTRIC HEAT POWER SUPPLY DISCONNECT
SIZE
MIN MAX RLA LRA CRHEATER
PART NO. FLA NOMINAL KW* MCA MOCP† FLA LRA
12
208/230-3-60 187 253 17.6 123 1.9
7.5
—
Low
— — —/— 51.0/ 51.0 60/ 60 54/ 54 314/314
225A00 20.0/ 23.1 7.5/10.0 51.0/ 51.0 60/ 60 54/ 54 314/314
226A00 30.0/ 34.6 11.3/15.0 51.0/ 52.7 60/ 60 54/ 54 314/314
227A00 50.0/ 57.7 18.8/25.0 71.9/ 81.5 80/ 90 66/ 75 314/314
228A00 70.0/ 80.8 26.3/35.0 96.9/110.4 100/125 89/102 314/314
229A00 80.0/ 92.4 30.0/40.0 109.4/124.8 110/125 101/115 314/314
230A00 100.1/115.5 37.6/50.0 134.5/124.8 150/150 124/141 314/314
10.2 High
— — —/— 53.7/ 53.7 60/ 60 57/ 57 331/331
225A00 20.0/ 23.1 7.5/10.0 53.7/ 53.7 60/ 60 57/ 57 331/331
226A00 30.0/ 34.6 11.3/15.0 53.7/ 56.1 60/ 60 57/ 57 331/331
227A00 50.0/ 57.7 18.8/25.0 75.3/ 84.9 80/ 90 69/ 78 331/331
228A00 70.0/ 80.8 26.3/35.0 100.3/113.8 110/125 92/105 331/331
229A00 80.0/ 92.4 30.0/40.0 112.8/128.2 125/150 104/118 331/331
230A00 100.1/115.5 37.6/50.0 137.8/128.2 150/150 127/145 331/331
7.5
3.0
Low
— — —/— 54.0/ 54.0 60/ 60 57/ 57 318/318
225A00 20.0/ 23.1 7.5/10.0 54.0/ 54.0 60/ 60 57/ 57 318/318
226A00 30.0/ 34.6 11.3/15.0 54.0/ 56.4 60/ 60 57/ 57 318/318
227A00 50.0/ 57.7 18.8/25.0 75.7/ 85.3 80/ 90 70/ 78 318/318
228A00 70.0/ 80.8 26.3/35.0 100.7/114.2 110/125 93/105 318/318
229A00 80.0/ 92.4 30.0/40.0 113.2/128.6 125/150 104/118 318/318
230A00 100.1/115.5 37.6/50.0 138.2/128.6 150/150 127/145 318/318
10.2 High
— — —/— 56.7/ 56.7 70/ 70 60/ 60 335/335
225A00 20.0/ 23.1 7.5/10.0 56.7/ 56.7 70/ 70 60/ 60 335/335
226A00 30.0/ 34.6 11.3/15.0 56.7/ 59.8 70/ 70 60/ 60 335/335
227A00 50.0/ 57.7 18.8/25.0 79.0/ 88.7 80/ 90 73/ 82 335/335
228A00 70.0/ 80.8 26.3/35.0 104.1/117.5 110/125 96/108 335/335
229A00 80.0/ 92.4 30.0/40.0 116.6/132.0 125/150 107/121 335/335
230A00 100.1/115.5 37.6/50.0 141.6/132.0 150/150 130/148 335/335
460-3-60 414 506 7.7 50 1.0
3.4
—
Low
— — — 22.7 30 24 130
232A00 11.5 10.0 22.7 30 24 130
233A00 17.3 15.0 25.9 30 24 130
234A00 28.9 25.0 40.3 45 37 130
235A00 40.4 35.0 54.8 60 50 130
236A00 46.2 40.0 62.0 70 57 130
237A00 57.7 50.0 62.0 70 70 130
4.8 High
— — — 24.1 30 26 139
232A00 11.5 10.0 24.1 30 26 139
233A00 17.3 15.0 27.7 30 26 139
234A00 28.9 25.0 42.1 45 39 139
235A00 40.4 35.0 56.5 60 52 139
236A00 46.2 40.0 63.7 70 59 139
237A00 57.7 50.0 63.7 70 72 139
3.4
1.2
Low
— — — 23.9 30 25 133
232A00 11.5 10.0 23.9 30 25 133
233A00 17.3 15.0 27.4 30 25 133
234A00 28.9 25.0 41.8 45 38 133
235A00 40.4 35.0 56.3 60 52 133
236A00 46.2 40.0 63.5 70 58 133
237A00 57.7 50.0 63.5 70 72 133
4.8 High
— — — 25.3 30 27 141
232A00 11.5 10.0 25.3 30 27 141
233A00 17.3 15.0 29.2 30 27 141
234A00 28.9 25.0 43.6 45 40 141
235A00 40.4 35.0 58.0 60 53 141
236A00 46.2 40.0 65.2 70 60 141
237A00 57.7 50.0 65.2 70 73 141
575-3-60 518 632 6.1 40.0 0.8
2.8
—
Low
— — — 20.1 20 21 124
239A00 13.9 15.0 20.8 25 21 124
240A00 23.1 25.0 32.4 35 32 124
241A00 32.3 35.0 43.9 45 42 124
242A00 37.0 40.0 49.7 50 48 124
243A00 46.2 50.0 49.7 60 58 124
3.3 High
— — — 18.6 20 20 142
239A00 13.9 15.0 21.4 25 20 142
240A00 23.1 25.0 33.0 35 30 142
241A00 32.3 35.0 45.1 45 41 142
242A00 37.0 40.0 50.3 50 46 142
243A00 46.2 50.0 50.3 60 57 142
2.8
3.0
Low
— — — 21.1 25 23 110
239A00 13.9 15.0 24.6 25 23 110
240A00 23.1 25.0 36.1 40 33 110
241A00 32.3 35.0 47.7 50 44 110
242A00 37.0 40.0 53.4 60 49 110
243A00 46.2 50.0 53.4 60 60 110
3.3 High
— — — 21.1 25 23 110
239A00 13.9 15.0 24.6 25 23 110
240A00 23.1 25.0 36.1 40 33 110
241A00 32.3 35.0 47.7 50 44 110
242A00 37.0 40.0 53.4 60 49 110
243A00 46.2 50.0 53.4 60 60 110
50PG08---16

19
Table 3 — Electrical Data — Units Without Optional Powered Convenience Outlet (cont)
UNIT
50PG
NOMINAL
POWER
SUPPLY
VOLTS-PH-HZ
VOLTAGE
RANGE
COMPRESS
OR
(EA.) OFM
FLA
IFM
FLA
POWER
EXHAUST
FLA
IFM
TYPE
ELECTRIC HEAT POWER SUPPLY DISCONNECT
SIZE
MIN MAX RLA LRA CRHEATER
PART NO. FLA NOMINAL KW* MCA MOCP† FLA LRA
14
208/230-3-60 187 253 22.4 149 1.9
10.2
—
Low
— — —/— 64.5/ 64.5 80/ 80 68/ 68 383/383
225A00 20.0/ 23.1 7.5/10.0 64.5/ 64.5 80/ 80 68/ 68 383/383
226A00 30.0/ 34.6 11.3/15.0 64.5/ 64.5 80/ 80 68/ 68 383/383
227A00 50.0/ 57.7 18.8/25.0 75.3/ 84.9 80/ 90 69/ 78 383/383
228A00 70.0/ 80.8 26.3/35.0 100.3/113.8 110/125 92/105 383/383
230A00 100.1/115.5 37.6/50.0 137.8/128.2 150/150 127/145 383/383
231A00 120.1/138.6 45.1/60.0 162.8/151.3 175/175 150/171 383/383
15.0 High
— — —/— 69.3/ 69.3 90/ 90 73/ 73 391/391
225A00 20.0/ 23.1 7.5/10.0 69.3/ 69.3 90/ 90 73/ 73 391/391
226A00 30.0/ 34.6 11.3/15.0 69.3/ 69.3 90/ 90 73/ 73 391/391
227A00 50.0/ 57.7 18.8/25.0 81.3/ 90.9 90/100 75/ 84 391/391
228A00 70.0/ 80.8 26.3/35.0 106.3/119.8 110/125 98/110 391/391
230A00 100.1/115.5 37.6/50.0 143.8/134.2 150/150 132/150 391/391
231A00 120.1/138.6 45.1/60.0 168.8/157.3 175/175 155/177 391/391
10.2
3.0
Low
— — —/— 67.5/ 67.5 80/ 80 71/ 71 387/387
225A00 20.0/ 23.1 7.5/10.0 67.5/ 67.5 80/ 80 71/ 71 387/387
226A00 30.0/ 34.6 11.3/15.0 67.5/ 67.5 80/ 80 71/ 71 387/387
227A00 50.0/ 57.7 18.8/25.0 79.0/ 88.7 80/ 90 73/ 82 387/387
228A00 70.0/ 80.8 26.3/35.0 104.1/117.5 110/125 96/108 387/387
230A00 100.1/115.5 37.6/50.0 141.6/132.0 150/150 130/148 387/387
231A00 120.1/138.6 45.1/60.0 166.6/155.1 175/175 153/175 387/387
15.0 High
— — —/— 72.3/ 72.3 90/ 90 77/ 77 395/395
225A00 20.0/ 23.1 7.5/10.0 72.3/ 72.3 90/ 90 77/ 77 395/395
226A00 30.0/ 34.6 11.3/15.0 72.3/ 72.3 90/ 90 77/ 77 395/395
227A00 50.0/ 57.7 18.8/25.0 85.0/ 94.7 90/100 78/ 87 395/395
228A00 70.0/ 80.8 26.3/35.0 110.1/123.5 125/125 101/114 395/395
230A00 100.1/115.5 37.6/50.0 147.6/138.0 150/150 136/153 395/395
231A00 120.1/138.6 45.1/60.0 172.6/161.1 175/175 159/180 395/395
460-3-60 414 506 10.6 75 1.0
4.8
—
Low
— — — 30.6 40 32 190
232A00 11.5 10.0 30.6 40 32 190
233A00 17.3 15.0 30.6 40 32 190
234A00 28.9 25.0 42.1 45 39 190
235A00 40.4 35.0 56.5 60 52 190
237A00 57.7 50.0 63.7 70 72 190
238A00 69.3 60.0 75.3 90 85 190
7.4 High
— — — 33.2 40 35 194
232A00 11.5 10.0 33.2 40 35 194
233A00 17.3 15.0 33.2 40 35 194
234A00 28.9 25.0 45.3 50 42 194
235A00 40.4 35.0 59.8 60 55 194
237A00 57.7 50.0 67.0 80 75 194
238A00 69.3 60.0 78.5 90 88 194
4.8
1.2
Low
— — — 31.8 40 34 192
232A00 11.5 10.0 31.8 40 34 192
233A00 17.3 15.0 31.8 40 34 192
234A00 28.9 25.0 43.6 45 40 192
235A00 40.4 35.0 58.0 60 53 192
237A00 57.7 50.0 65.2 70 73 192
238A00 69.3 60.0 76.8 90 87 192
7.4 High
— — — 34.4 45 37 197
232A00 11.5 10.0 34.4 45 37 197
233A00 17.3 15.0 34.4 45 37 197
234A00 28.9 25.0 46.8 50 43 197
235A00 40.4 35.0 61.3 70 56 197
237A00 57.7 50.0 68.5 80 76 197
238A00 69.3 60.0 80.0 90 90 197
575-3-60 518 632 10.6 59.0 0.8
3.3
—
Low
— — — 28.7 25 30 180
239A00 13.9 15.0 28.7 25 30 180
240A00 23.1 25.0 33.0 35 30 180
241A00 32.3 35.0 45.1 45 41 180
242A00 37.0 40.0 50.3 50 46 180
243A00 46.2 50.0 50.3 60 57 180
244A00 55.4 60.0 59.6 60 68 180
5.6 High
— — — 31.0 30 33 191
239A00 13.9 15.0 31.0 30 33 191
240A00 23.1 25.0 35.9 40 33 191
241A00 32.3 35.0 47.4 50 44 191
242A00 37.0 40.0 53.2 60 49 191
243A00 46.2 50.0 53.2 60 60 191
244A00 55.4 60.0 62.4 70 70 191
3.3
3.0
Low
— — — 24.7 30 26 138
239A00 13.9 15.0 24.7 30 26 138
240A00 23.1 25.0 36.1 40 33 138
241A00 32.3 35.0 47.7 50 44 138
242A00 37.0 40.0 53.4 60 49 138
243A00 46.2 50.0 53.4 60 60 138
244A00 55.4 60.0 62.7 70 70 138
5.6 High
— — — 27.5 30 29 151
239A00 13.9 13.9 28.1 30 29 151
240A00 23.1 23.1 39.6 40 36 151
241A00 32.3 32.3 51.2 60 47 151
242A00 37.0 37.0 56.9 60 52 151
243A00 46.2 46.2 56.9 60 63 151
244A00 55.4 55.4 66.2 70 74 151
50PG08---16

20
LEGEND
FLA --- F u l l L o a d A m p s
HACR --- Heating, Air Conditioning and Refrigeration
IFM --- Indoor (Evaporator) Fan Motor
LRA --- L o c k e d R o t o r A m p s
MCA --- Minimum Circuit Amps
MOCP --- Maximum Overcurrent Protection
NEC --- National Electrical Code
OFM --- Outdoor (Condenser) Fan Motor
RLA --- RatedLoadAmps
* Heater capacity (kW) is based on heater voltage of 208 v, 230 v, 480 v, or 600 v. If power
distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly.
{Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equip-
ment (refer to NEC Articles 430 and 440), the overcurrent protective device for the
unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is greater than
2%. Use the following formula to determine the percentage of voltage imbalance.
% Voltage Imbalance = 100 x
max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60
AB = 224 v
BC = 231 v
AC = 226 v
Average Voltage =
224 + 231 + 226
3
= 681
=3
227
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
(BC) 231 – 227 = 4 v
(AC) 227 – 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
% Voltage Imbalance = 100 x
4
227
= 1.76%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric
utility company immediately.
50PG08---16