Payne PA1Z Series Dimensions and installation guide

CONTENTS Page
SAFETY CONSIDERATIONS ......................1-4
I. General ...................................1
RECEIVING AND INSTALLATION ..................5-10
I. Step 1 — Check Equipment ..................5
II. Step 2 — Provide Unit Support ...............5
III. Step 3 — Provide Clearances ................ 5
IV. Step 4 — Place Unit ........................ 5
V. Step 5 — Select and Install Ductwork ..........6
VI. Step 6 — Provide for Condensate
Disposal ..................................7
VII. Step 7 — Install Electrical Connections.........7
PRE-START-UP .................................11
START-UP ....................................11-14
I. Check for Refrigerant Leaks .................11
II. Start-Up Cooling Section and
Make Adjustments .........................11
III. Refrigerant Charge .........................11
IV. Indoor Airflow and Airflow Adjustments .......14
V. Unit Controls ..............................14
VI. Sequence of Operation .....................14
MAINTENANCE ................................14-17
I. Air Filter ..................................16
II. Unit Top Removal (Condenser
Coil Side) .................................16
III. Evaporator Blower and Motor ................16
IV. Condenser Coil, Evaporator Coil,
and Condensate Drain Pan ..................16
V. Condenser Fan ............................17
VI. Electrical Controls and Wiring ...............17
VII. Refrigerant Circuit .........................17
VIII. Evaporator Airflow .........................17
IX. Metering Devices ..........................17
X. Liquid Line Strainer ........................17
TROUBLESHOOTING COOLING CHART ............18
START-UP CHECKLIST ..........................CL-1
NOTE TO INSTALLER — Before the installation, READ
THESE INSTRUCTIONS CAREFULLYAND COMPLETELY.
Also, make sure the Owner’s Manual and Service Instruc-
tions are left with the unit after installation.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified workers should install,
repair, or service air-conditioning equipment.
Untrained workers can perform basic maintenance func-
tions of cleaning coils and filters. All other operations should
be performed by trained service people. When working on air-
conditioning equipment, pay attention to 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.
Use quenching cloth for unbrazing operations. Have fire
extinguisher available for all brazing operations.
WARNING:Before performing service or mainte-
nance operations on system, turn off main power to unit.
Turn off accessory heater power switch if applicable. Elec-
trical shock can cause personal injury.
I. GENERAL
The PA1Z cooling unit is fully self-contained and designed
for outdoor installation. See Fig. 1.As shown in Fig. 2-4, units
are shipped in a horizontal-discharge configuration for instal-
lation on a ground-level slab. All units can be field-converted
to downflow discharge configurations for rooftop applications
with a field-supplied plenum.
Fig. 1 — Unit PA1Z (Size 036 Shown)
installation, start-up and
service instructions
PACKAGED AIR
CONDITIONERS
PA1Z
Sizes 024-060
Cancels: New II PA1Z-24-1
11/15/97

UNIT
PA1Z ELECTRICAL CHARACTERISTICS UNIT WT CENTER OF GRAVITY — mm (in.)
lb kg X Y Z
024 208/230-1-60 222 101 355.6 (14.00) 508.0 (20.00) 241.3 (9.50)
030 208/230-1-60 236 107 355.6 (14.00) 508.0 (20.00) 241.3 (9.50)
036 208/230-1-60, 208/230-3-60 250 114 355.6 (14.00) 508.0 (20.00) 241.3 (9.50)
REQUIRED CLEARANCES TO COMBUSTIBLE MAT’L — mm (in.)
Top of Unit ......................................0
Duct Side of Unit ..................................0
Side Opposite Ducts ................................0
Bottom of Unit ....................................0
NEC REQUIRED CLEARANCES — mm (in.)
Between Units, Power Entry Side .............1066.8 (42.00)
Unit and Ungrounded Surfaces, Power
Entry Side ............................. 914.0 (36.00)
Unit and Block or Concrete Walls and Other
Grounded Surfaces, Power Entry Side .........1066.8 (42.00)
REQUIRED CLEARANCES FOR SERVICING — mm (in.)
Condenser Coil Access Side .................762.0 (30.00)
Power Entry Side .........................762.0 (30.00)
(Except for NEC Requirements)
Unit Top ................................914.0 (36.00)
Side Opposite Ducts .......................762.0 (30.00)
LEGEND
NEC — National Electrical Code
NOTES:
1. Clearances must be maintained to prevent recirculation of air from
outdoor-fan discharge, with the exception of the condenser coil
(914 mm [36 in.]). A removable fence or barricade requires no
clearance.
2. Dimensions are in millimeters. Dimensions in ( ) are in inches.
Fig. 2 — Base Unit Dimensions, PA1Z024-036
—2—

UNIT
PA1Z ELECTRICAL CHARACTERISTICS UNIT WT CENTER OF GRAVITY — mm (in.)
lb kg X Y Z
042 208/230-1-60, 208/230-3-60 297 135 355.6 (14.00) 508.0 (20.00) 304.8 (12.00)
048 208/230-1-60, 208/230-3-60 310 141 355.6 (14.00) 508.0 (20.00) 304.8 (12.00)
REQUIRED CLEARANCES TO COMBUSTIBLE MAT’L — mm (in.)
Top of Unit ......................................0
Duct Side of Unit ..................................0
Side Opposite Ducts ................................0
Bottom of Unit ....................................0
NEC REQUIRED CLEARANCES — mm (in.)
Between Units, Power Entry Side .............1066.8 (42.00)
Unit and Ungrounded Surfaces, Power
Entry Side ............................. 914.0 (36.00)
Unit and Block or Concrete Walls and Other
Grounded Surfaces, Power Entry Side .........1066.8 (42.00)
REQUIRED CLEARANCES FOR SERVICING — mm (in.)
Condenser Coil Access Side .................762.0 (30.00)
Power Entry Side .........................762.0 (30.00)
(Except for NEC Requirements)
Unit Top ................................914.0 (36.00)
Side Opposite Ducts .......................762.0 (30.00)
LEGEND
NEC — National Electrical Code
NOTES:
1. Clearances must be maintained to prevent recirculation of air from
outdoor-fan discharge, with the exception of the condenser coil
(914 mm [36 in.]). A removable fence or barricade requires no
clearance.
2. Dimensions are in millimeters. Dimensions in ( ) are in inches.
Fig. 3 — Base Unit Dimensions, PA1Z042,048
—3—

UNIT
PA1Z ELECTRICAL CHARACTERISTICS UNIT WT CENTER OF GRAVITY — mm (in.)
lb kg X Y Z
060 230-1-60, 208/230-3-60, 460-3-60 350 159 355.6 (14.00) 508.0 (20.00) 355.6 (14.00)
REQUIRED CLEARANCES TO COMBUSTIBLE MAT’L — mm (in.)
Top of Unit ......................................0
Duct Side of Unit ..................................0
Side Opposite Ducts ................................0
Bottom of Unit ....................................0
NEC REQUIRED CLEARANCES — mm (in.)
Between Units, Power Entry Side .............1066.8 (42.00)
Unit and Ungrounded Surfaces, Power
Entry Side ............................. 914.0 (36.00)
Unit and Block or Concrete Walls and Other
Grounded Surfaces, Power Entry Side .........1066.8 (42.00)
REQUIRED CLEARANCES FOR SERVICING — mm (in.)
Condenser Coil Access Side .................762.0 (30.00)
Power Entry Side .........................762.0 (30.00)
(Except for NEC Requirements)
Unit Top ................................914.0 (36.00)
Side Opposite Ducts .......................762.0 (30.00)
LEGEND
NEC — National Electrical Code
NOTES:
1. Clearances must be maintained to prevent recirculation of air from
outdoor-fan discharge, with the exception of the condenser coil
(914 mm [36 in.]). A removable fence or barricade requires no
clearance.
2. Dimensions are in millimeters. Dimensions in ( ) are in inches.
Fig. 4 — Base Unit Dimensions, PA1Z060
—4—

RECEIVING AND INSTALLATION
I. STEP 1 — CHECK EQUIPMENT
A. Identify Unit
The unit model number and serial number are stamped on
the unit identification plate. Check this information against
shipping papers.
B. Inspect Shipment
Inspect for shipping damage while unit is still on shipping
pallet. If unit appears to be damaged or is torn loose from its
securing points, have it examined by transportation inspec-
tors before removal. Forward claim papers directly to trans-
portation company. Manufacturer is not responsible for any
damage incurred in transit.
Check all items against shipping list. Immediately notify your
local representative if any item is missing.
To prevent loss or damage, leave all parts in original pack-
ages until installation.
II. STEP 2 — PROVIDE UNIT SUPPORT
A. Slab Mount
Place the unit on a rigid, level surface, suitable to support
the unit weight. The flat surface should extend approxi-
mately 2-in. beyond the unit casing on the 2 sides. The duct
connection side and condensate drain connection sides should
be flush with the edge of the flat surface. A concrete pad or a
suitable fiberglass mounting pad is recommended.
A 6-in. wide gravel apron should be used around the flat sur-
face to prevent airflow blockage by grass or shrubs. Do not
secure the unit to the flat surface except where required by
local codes.
The unit should be level to within
1
⁄ 4 inch. This is necessary
for the unit drain to function properly.
III. STEP 3 — PROVIDE CLEARANCES
The required minimum service clearances and clearances to
combustibles are shown in Fig. 2-4.Adequate ventilation and
condenser air must be provided.
The condenser fan pulls air through the condenser coil and
discharges it through the fan on the top cover. Be sure that
the fan discharge does not recirculate to the condenser coil.
Do not locate the unit in either a corner or under an over-
head obstruction. The minimum clearance under a partial over-
hang (such as a normal house overhang) is 48 in. above the
unit top. The maximum horizontal extension of a partial over-
hang must not exceed 48 inches.
CAUTION: Do not restrict condenser airflow. An air
restriction at either the outdoor-air inlet or the fan dis-
charge can be harmful to compressor life.
Do not place the unit where water, ice, or snow from an
overhang or roof will damage or flood the unit. The unit may
be installed on wood flooring or on Class A, B, or C roof cov-
ering materials.
IV. STEP 4 — PLACE UNIT
Unit can be moved with the handholds provided in the unit
basepan. Refer to Table 1 for operating weights. Use extreme
caution to prevent damage when moving the unit. Unit must
remain in an upright position during all moving operations.
The unit must be level for proper condensate drainage; the
ground-level pad must be level before setting the unit in place.
When a field-fabricated support is used, be sure that the sup-
port is level and that it properly supports the unit.
Table 1 — Physical Data
UNIT PA1Z 024 030 036 042 048 060
OPERATING WEIGHT (lbs) 222 236 250 297 310 350
COMPRESSOR TYPE Reciprocating
REFRIGERANT R-22
Charge (lbs) 2.8 3.9 4.7 4.4 6.1 7.5
REFRIGERANT METERING DEVICE Acutrol™ System
CONDENSER COIL Copper Tubes, Aluminum Plate Fins
Rows...Fins/in. 1...17 1...17 2...17 1...17 2...17 2...17
Total Face Area (sq ft) 6.7 7.9 6.2 11.1 8.6 10.7
CONDENSER-FAN MOTOR Propeller
CFM 1600 2000 2000 2600 2600 2800
Nominal Rpm 825 1100 1100 1100 1100 1100
Motor Hp
1
⁄ 81 ⁄ 41 ⁄ 41 ⁄ 41 ⁄ 41 ⁄ 4
Diameter (in.) 20 20 20 20 20 20
EVAPORATOR COIL Copper Tubes, Aluminum Plate Fins
Rows...Fins/in. 2...15 3...15 3...15 3...15 3...15 4...15
Total Face Area (sq ft) 2.8 2.8 3.1 3.9 4.3 4.9
EVAPORATOR-FAN MOTOR Direct Drive
Blower Motor Size (in.) 10x8 10x8 10x8 10x9 10x9 10x10
Nominal Cfm 800 1000 1200 1400 1600 2000
Rpm Range 550-1000 550-1000 800-1050 800-1050 1000-1100 950-1100
Number of Speeds 3333 2 3*
Factory Speed Setting Low Med Low Med Low Low
Motor Hp
1
⁄ 41 ⁄ 41 ⁄ 21 ⁄ 23 ⁄ 4 1
CONNECTING DUCT SIZES Round Square
Supply Air (in.) 14 13.9 x 13.9
Return Air (in.) 14 13.9 x 27.8
FIELD-SUPPLIED RETURN AIR FILTER†
Throwaway (in.) 24x24 24x24 24x24 24x24 24x30 24x30
*460-v motors are 2-speed only.
†Required filter sizes shown are based on the ARI (Air Conditioning and Refrigeration Institute) rated airflow at a velocity
of 300 ft/min for throwaway type or 450 ft/min for high capacity type. Recommended filters are 1-in. thick.
—5—

V. STEP 5 — SELECT AND INSTALL DUCTWORK
The design and installation of the duct system must be in
accordance with:
• the standards of the NFPA (National Fire Protection
Association) for installation of nonresidence-type air con-
ditioning and ventilating systems;
• NFPA90Aor residence-type, NFPA90B; and/or local codes
and residence-type, NFPA 90B;
• and/or local codes and ordinances.
Select and size ductwork, supply-air registers and
return-air grilles according to ASHRAE (American Society of
Heating, Refrigeration, and Air Conditioning Engineers) rec-
ommendations.
Use the duct flanges provided on the supply- and return-air
openings on the side of the unit. See Fig. 2-4 for connection
sizes and locations. The 14-in. round duct collars (size 024-
048 units) are shipped inside the unit attached to the indoor
blower. They are field-installed and must be removed from
the indoor cavity prior to start-up, even if they are not used
for installation.
A. Install Flanges for Ductwork Connections (PA1Z060 Only)
The PA1Z060 units are shipped with flanges which must be
field-installed on the unit.
To install unit flanges:
1. Five pieces of flange are shipped on the return-air open-
ing of the unit. Remove the flanges from the shipping
position. See Fig. 5. Screws are field-supplied.
2. One piece of flange is used as it is shipped (straight).
Bend the other 4 pieces at right angles.
3. Install the straight flange on the right side of the
return air opening in holes provided. See Fig. 6. Flanges
should stick out from unit to allow for connection of
ductwork.
4. Install 2 hand-formed flanges onto return air opening
in holes provided to form a rectangle around the return
air opening.
5. Install remaining 2 hand-formed flanges around dis-
charge air opening in holes provided.
6. Ductwork can now be attached to flanges.
When designing and installing ductwork, consider the
following:
CAUTION: When connecting ductwork to units, do
not drill deeper than
3
⁄ 4 inch in shaded area shown in
Fig. 7 or coil may be damaged.
• All units should have field-supplied filters installed in the
return-air side of the unit. Recommended sizes for filters
are shown in Table 1.
• Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
IMPORTANT: Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gas-
kets to ensure weathertight and airtight seal.
• Size ductwork for cooling air quantity (cfm). The mini-
mum air quantity for proper electric heater operation is
listed in Table 2. Heater limit switches may trip at air quan-
tities below those recommended.
Fig. 5 — Shipping Location of Duct Flanges
(Size 060 Only)
Fig. 6 — Flanges Installed on PA1Z060 Units
19.17″3.92″
Fig. 7 — Area Not to be Drilled More than
3
⁄ 4 -in.
—6—

• Insulate and weatherproof all external ductwork. Insulate
and cover with a vapor barrier all ductwork passing through
conditioned spaces. Follow latest Sheet Metal andAir Con-
ditioning Contractors NationalAssociation (SMACNA) and
Air Conditioning Contractors Association (ACCA) mini-
mum installation standards for residential heating and air
conditioning systems.
• Secure all ducts to building structure. Flash, weather-
proof, and vibration-isolate duct openings in wall or roof
according to good construction practices.
Figure 8 shows a typical duct system with PA1Z unit
installed.
Table 2 — Minimum Airflow for Safe Electric
Heater Operation (Cfm)
UNIT SIZE PA1Z
024 030 036 042 048 060
700 875 1200 1225 1400 1750
B. Converting Horizontal Discharge Units to Downflow
(Vertical) Discharge
WARNING:Before performing service or mainte-
nance operations on system, turn off main power to unit.
Turn off accessory heater power switch if applicable. Elec-
trical shock can cause personal injury.
Units are dedicated side supply products. They are not con-
vertible to vertical air supply. A field-supplied plenum must
be used to convert to vertical air discharge.
VI. STEP 6 — PROVIDE FOR CONDENSATE DISPOSAL
NOTE: Be sure that condensate-water disposal methods com-
ply with local codes, restrictions, and practices.
Unit removes condensate through a 1
3
⁄ 64 -in. ID hole which is
located at the end of the unit. See Fig. 2-4 for location of con-
densate connection.
Condensate water can be drained directly onto the roof in
rooftop installations (where permitted) or onto a gravel apron
in ground-level installations. Install a field-supplied con-
densate trap at end of condensate connection to ensure proper
drainage. Make sure that the outlet of the trap is at least
1 in. lower than the drain-pan condensate connection to pre-
vent the pan from overflowing. See Fig. 9A and 9B. Prime
the trap with water. When using a gravel apron, make sure
it slopes away from the unit.
If the installation requires draining the condensate water away
from the unit, install a 2-in. trap using a
3
⁄ 4 -in. OD tubing or
pipe. See Fig. 9A and 9B. Make sure that the outlet of the
trap is at least 1 in. lower than the unit drain-pan conden-
sate connection to prevent the pan from overflowing. Prime
the trap with water. Connect a drain tube using a minimum
of
3
⁄ 4 -in. PVC,
3
⁄ 4 -in. CPVC, or
3
⁄ 4 -in. copper pipe (all field sup-
plied). Do not undersize the tube. Pitch the drain tube down-
ward at a slope of at least 1 in. for every 10 ft of horizontal
run. Be sure to check the drain tube for leaks. Prime trap at
the beginning of the cooling season start-up. Allowable glues
for condensate trap connection are: Standard ABS, CPVC, or
PVC cement.
VII. STEP 7 — INSTALL ELECTRICAL CONNECTIONS
WARNING:The unit cabinet must have an unin-
terrupted, unbroken electrical ground to minimize
the possibility of personal injury if an electrical fault
should occur. This ground may consist of an electrical
wire connected to the unit ground in the control com-
partment, or conduit approved for electrical ground when
installed in accordance with NEC (National Electrical
Code), ANSI (American National Standards Institute)/
NFPA (latest edition) (in Canada, Canadian Electrical
Code CSA C22.1) and local electrical codes. Failure to
adhere to this warning could result in personal injury
or death.
Fig. 9A — Condensate Trap (Using Tubing)
Fig. 9B — Condensate Trap (Using PVC Piping)
LEGEND
Power Wiring
Control Wiring
Condenser Airflow
Evaporator Airflow
*Separate disconnect per NEC
(National Electrical Code) required
for electric heater when single-
point connection is not used.
Fig.8—Typical Installation
—7—

CAUTION: Failure to follow these precautions could
result in damage to the unit being installed:
1. Make all electrical connections in accordance with
NEC ANSI/NFPA (latest edition) and local elec-
trical codes governing such wiring. In Canada, all
electrical connections must be in accordance with CSA
Standard C22.1 Canadian Electrical Code Part 1
and applicable local codes. Refer to unit wiring
diagram.
2. Use only copper conductor for connections between
field-supplied electrical disconnect switch and unit.
DO NOT USE ALUMINUM WIRE.
3. Be sure that high-voltage power to unit is within
operating voltage range indicated on unit rating plate.
On 3-phase units, ensure that phases are balanced
within 2%. Consult local power company for correc-
tion of improper voltage and/or phase imbalance.
4. Insulate low-voltage wires for highest voltage con-
tained within conduit when low-voltage control wires
are run in same conduit as high-voltage wires.
5. Do not damage internal components when drilling
through any panel to mount electrical hardware, con-
duit, etc.
A. High-Voltage Connections
The unit must have a separate electrical service with a field-
supplied, waterproof disconnect switch mounted at, or within
sight from the unit. Refer to the unit rating plate for maxi-
mum fuse/circuit breaker size and minimum circuit amps
(ampacity) for wire sizing. See Table 3 for electrical data.
The field-supplied disconnect may be mounted on the unit over
the high-voltage inlet hole. See Fig. 2-4.
CAUTION: Operation of unit on improper line volt-
age constitutes abuse and may cause unit damage that
could affect warranty.
B. Routing Power Leads into Unit
Use only copper wire between disconnect and unit. The high-
voltage leads should be in a conduit until they enter the unit;
conduit termination at the unit must be watertight. Run the
high-voltage leads through the hole on the control box side of
the unit (see Fig. 10 for location). When the leads are inside
the unit, run leads to the control box (Fig. 11). For single-
phase units, connect leads to the black and yellow wires; for
3-phase units, connect the leads to the black, yellow, and blue
wires (see Fig. 12).
C. Connecting Ground Lead to Unit Ground
Refer to Fig. 11 and 12. Connect the ground lead to the chas-
sis using the unit ground lug in the control box.
D. Routing Control Power Wires
Form a drip-loop with the thermostat leads before routing
them into the unit. Route the thermostat leads through grom-
meted hole provided in unit (see Fig. 10) into unit control box.
Connect thermostat leads to unit control power leads as shown
in Fig. 13.
Route thermostat wires through grommet providing a drip
loop at the panel. Connect low-voltage leads to the thermo-
stat as shown in Fig. 13.
The unit transformer supplies 24-v power for complete sys-
tem including accessory electrical heater. Transformer is
factory wired for 230-v operation. If supply voltage is 208 v,
rewire transformer primary as described in the Special Pro-
cedures for 208-v Operation section below.
E. Accessory Electric Heat Wiring
Refer to accessory electric heat installation instructions for
information on installing accessory electric heat. Accessory
electric heat wiring is shown in Fig. 14.
F. Special Procedures for 208-V Operation
WARNING:Make sure that the power supply to the
unit is switched OFF before making any wiring changes.
Electrical shock can cause personal injury or death.
1. Remove wirenut from connection of ORG wire to BLK
wire. Disconnect the ORG transformer-primary lead from
the BLK wire. Save wirenut. See unit wiring label.
2. Remove the wirenut from the terminal on the end of the
RED transformer-primary lead.
3. Save the wirenut.
4. Connect the RED lead to the BLK wire from which the
ORG lead was disconnected. Insulate with wirenut from
Step 1.
5. Using the wirenut removed from the RED lead, insu-
late the loose terminal on the ORG lead.
6. Wrap the wirenuts with electrical tape so that the metal
terminals cannot be seen.
Indoor blower-motor speeds may need to be changed for 208-v
operation. Refer to Indoor Airflow and Airflow Adjustments
section on page 14.
HIGH-VOLTAGE
POWER WIRING
ENTRY HOLE
LOW-VOLTAGE
WIRING ENTRY
HOLE
Fig. 10 — Unit Electrical Connection Entry Holes
—8—

Table 3 — Electrical Data
UNIT
PA1Z NOMINAL
VOLTAGE
(V-Ph-Hz)
VOLTAGE
RANGE COMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLY DISCONNECT SIZE
Min Max RLA LRA FLA FLA Nominal kW* FLA MCA MOCP FLA LRA
024 208/230-1-60 187 254 10.9 61.0 0.9 2.4 —/— —/— 16.9/ 16.9 20/ 20 16/ 16 683.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.1/ 55.1 50/ 60 44/ 51
030 208/230-1-60 187 254 15.2 69.4 1.5 2.4 —/— —/— 22.9/ 22.9 30/ 30 22/ 22 79
3.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.1/ 55.1 50/ 60 44/ 51
11.3/15.0 54.2/62.5 70.7/ 81.1 80/ 90† 65/ 75
036
208/230-1-60 187 254 15.9 86.0 1.5 2.8
—/— —/— 24.2/ 24.2 30/ 30 23/ 23
96
3.8/ 5.0 18.1/20.8 26.1/ 29.5 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.6/ 55.6 50/ 60 45/ 51
11.3/15.0 54.2/62.5 71.2/ 81.6 80/ 90† 66/ 75
15.0/20.0 72.2/83.3 93.6/107.7 100/110† 86/ 99
208/230-3-60 187 254 8.9 64.5 1.5 2.8
—/— —/— 15.4/ 15.4 20/ 20 15/ 15
74
3.8/ 5.0 10.4/12.0 16.5/ 18.5 20/ 20 15/ 17
7.5/10.0 20.8/24.1 29.6/ 33.6 30/ 35 27/ 31
11.3/15.0 31.3/36.1 42.6/ 48.6 45/ 50 39/ 45
15.0/20.0 41.7/48.1 55.6/ 63.6 60/ 70† 51/ 59
042
208/230-1-60 187 254 18.5 97.6 1.5 2.8
—/— —/— 27.4/ 27.4 35/ 35 26/ 26
107
3.8/ 5.0 18.1/20.8 27.4/ 29.5 35/ 35 26/ 27
7.5/10.0 36.1/41.7 48.6/ 55.6 50/ 60 45/ 51
11.3/15.0 54.2/62.5 71.2/ 81.6 80/ 90† 66/ 75
15.0/20.0 72.2/83.3 93.8/107.7 100/110† 86/ 99
208/230-3-60 187 254 10.9 73.0 1.5 2.8
—/— —/— 17.9/ 17.9 25/ 25 17/ 17
83
3.8/ 5.0 10.4/12.0 17.9/ 18.5 25/ 25 17/ 17
7.5/10.0 20.8/24.1 29.6/ 33.6 30/ 35 27/ 31
11.3/15.0 31.3/36.1 42.6/ 48.6 45/ 50 39/ 45
15.0/20.0 41.7/48.1 55.6/ 63.6 60/ 70† 51/ 59
048
208/230-1-60 187 254 21.3 107.0 1.5 4.2
—/— —/— 32.3/ 32.3 40/ 40 31/ 31
121
3.8/ 5.0 18.1/20.8 32.3/ 32.3 40/ 40 31/ 31
7.5/10.0 36.1/41.7 50.4/ 57.3 60/ 60 46/ 53
11.3/15.0 54.2/62.5 72.9/ 83.4 80/ 90† 67/ 77
15.0/20.0 72.2/83.3 95.5/109.4 100/110† 88/101
208/230-3-60 187 254 12.3 73.0 1.5 4.2
—/— —/— 21.1/ 21.1 25/ 25 21/ 21
87
3.8/ 5.0 10.4/12.0 21.1/ 21.1 25/ 25 21/ 21
7.5/10.0 20.8/24.1 31.3/ 35.3 35/ 40 29/ 32
11.3/15.0 31.3/36.1 44.3/ 50.4 45/ 60 41/ 46
15.0/20.0 41.7/48.1 57.4/ 65.4 60/ 70† 53/ 60
060
230-1-60 207 254 26.9 128.0 1.4 6.2
— — 41.2 50 40
141
5.0 20.8 41.2 50 40
10.0 41.7 59.8 60 55
15.0 62.5 85.9 90† 79
20.0 83.3 111.9 125† 103
208/230-3-60 187 254 17.7 128.0 1.4 6.2
—/— —/— 29.7/ 29.7 35/ 35 29/ 29
146
3.8/ 5.0 10.4/12.0 29.7/ 29.7 35/ 35 29/ 29
7.5/10.0 20.8/24.1 33.8/ 37.8 35/ 40 31/ 35
11.3/15.0 31.3/36.1 46.8/ 52.9 50/ 60 43/ 49
15.0/20.0 41.7/48.1 59.9/ 67.9 60/ 70† 55/ 62
460-3-60 414 508 9.0 63.0 0.7 3.2
— — 15.2 20 15
71
5.0 6.0 15.2 20 15
10.0 12.0 19.0 20 18
15.0 18.0 26.6 30 24
20.0 24.1 34.1 35 31
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, or
480 v. If power distribution voltage to unit varies from rated heater volt-
age, heater kW will vary accordingly.
†Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion load and equipment (refer to NEC Articles 430 and 440), the
overcurrent protective device for the unit shall be fuse or HACR 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 percent-
age of voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x average voltage
EXAMPLE: Supply voltage is 460-3-60
AB = 452 v
BC = 464 v
AC = 455 v 452 + 464 + 455
Average voltage = 3
= 457
Determine maximum deviation from average voltage:
(AB) 457 − 452=5v
(BC) 464 − 457=7v
(AC) 457 − 455=2v
Maximum deviation is 7 v.
Determine percentage of voltage imbalance:
7
% Voltage imbalance = 100 x 457
= 1.53%
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.
—9—

LEGEND
NEC — National Electrical Code
Field Wiring
Splice Connections
NOTE: Use copper wire only.
Fig. 12 — Line Power Connections
Fig. 13 — Control Connections
Fig. 14 — Accessory Electric Heater Wiring
ELECTRIC
HEATER
FUSES
GROUND
LUG INDOOR
FAN
RELAY
OUTDOOR FAN MOTOR
AND COMPRESSOR
START CAPACITOR
HIGH
VOLTAGE
LEADS
Fig. 11 — Control Box Wiring
—10—