Nortek P7RE Series User manual

SINGLE PACKAGE AIR CONDITIONER - SINGLE STAGE, R-410A
14 SEERP7RE SERIES
INSTALLATION INSTRUCTIONS
IMPORTANT
ATTENTION INSTALLERS:
It is your responsibility to know this product better than your customer. This includes being
able to install the product according to strict safety guidelines and instructing the customer on
how to operate and maintain the equipment for the life of the product. Safety should always be
the deciding factor when installing this product and using common sense plays an important
role as well. Pay attention to all safety warnings and any other special notes highlighted in the
manual. Improper installation of the furnace or failure to follow safety warnings could result in
serious injury, death, or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the proper
installation of this appliance. Some local codes require licensed installation/service personnel
for this type of equipment. Please read all instructions carefully before starting the installation.
Return these instructions to the customer’s package for future reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

2
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION..................................................... 3
GENERAL INFORMATION........................................................................ 4
Before You Install this Unit...................................................................... 4
Locating the Air Conditioner.................................................................... 4
Minimum Clearance Requirements......................................................... 4
Service Access Clearances................................................................. 4
Clearances to Combustible Materials.................................................. 4
Air Duct System ...................................................................................... 4
AIR CONDITIONER INSTALLATION........................................................ 5
Unpacking the Unit.................................................................................. 5
Installing Return & Supply Air Collars (Optional) .................................... 5
Supply Duct......................................................................................... 5
Return Duct ......................................................................................... 5
Locating & Installing the Return Air Assembly ........................................ 5
Connecting the Return & Supply Air Flexible Ducts................................ 6
Locating & Installing the Supply Damper(s)............................................ 6
Condensate Drainage............................................................................. 6
ELECTRICAL CONNECTIONS ................................................................. 7
Pre-Electrical Checklist........................................................................... 7
Line Voltage............................................................................................ 7
Grounding ............................................................................................... 7
Overcurrent Protection............................................................................ 7
Thermostat / Low Voltage Connections.................................................. 7
Cooling Only Thermostat..................................................................... 8
Heat / Cool Thermostat ....................................................................... 8
Blower Speed.......................................................................................... 8
START UP & ADJUSTMENTS .................................................................. 8
Pre-Start Checklist.................................................................................. 8
Start-Up Procedure................................................................................. 9
System Cooling ................................................................................... 10
System Heating................................................................................... 10
AIR CONDITIONER MAINTENANCE........................................................ 10
REFRIGERANT CHARGING ..................................................................... 10
Charging the Unit.................................................................................... 10
Safety switches....................................................................................... 10
Refrigerant Charging Tables................................................................... 11
Table 3. Charging Table for 1.5 Ton Units .......................................... 11
Table 4. Charging Table for 2 Ton Units ............................................. 11
Table 5. Charging Table for 2.5 Ton Units .......................................... 12
Table 6. Charging Table for 3 Ton Units ............................................. 12
Table 7. Charging Table for 3.5 Ton Units .......................................... 13
Table 8. Charging Table for 4 Ton Units ............................................. 13
Figure 9. Charging Chart for 5 Ton Units ............................................ 14
FIGURES & TABLES................................................................................. 15
Figure 10. Unit Dimensions................................................................. 15
Table 9. Physical Data ........................................................................ 15
Wiring Diagrams ..................................................................................... 16
Figure 11. Wiring Diagram (1.5, 2, & 2.5 Ton Models)........................ 16
Figure 12. Wiring Diagram (3, 3.5, 4, & 5 Ton Models)....................... 17
INSTALLATION CHECKLIST.................................................................... 20
REPLACEMENT PARTS ........................................................................... 20

3
IMPORTANT SAFETY INFORMATION
Please read all instructions before servicing this equipment.
Pay attention to all safety warnings and any other special
notes highlighted in the manual. Safety markings are used
frequently throughout this manual to designate a degree or
level of seriousness and should not be ignored. WARNING
indicates a potentially hazardous situation that if not avoided,
could result in personal injury or death. CAUTION indicates a
potentially hazardous situation that if not avoided, may result
in minor or moderate injury or property damage.
WARNING:
ELECTRICAL SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical power
to the indoor blower.
• When servicing controls, label all wires prior
to disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
WARNING:
These units are fully charged with R-410A
refrigerant and ready for installation. When
a system is installed according to these
instructions, no refrigerant charging is required.
If repairs make it necessary for evacuation and
charging, it should only be attempted by qualified,
trained personnel thoroughly familiar with this
equipment. Some local codes require licensed
installation service personnel to service this type
of equipment. Under no circumstances should
the equipment owner attempt to install and/or
service this equipment. Failure to comply with
this warning could result in equipment damage,
personal injury, or death.
WARNING:
Do not place combustible material on or against
the unit cabinet. Do not place combustible
materials, including gasoline and any other
flammable vapors and liquids, in the vicinity of
the unit.
CAUTION:
This unit uses R-410A refrigerant. DO NOT use
any other refrigerant in this unit. Use of another
refrigerant will damage the unit.
WARNING:
The information listed below must be followed
during the installation, service, and operation
of this unit. Unqualified individuals should not
attempt to interpret these instructions or install
this equipment. If you do not posses mechanical
skills or tools, call your local dealer for assistance.
Failure to follow safety recommendations could
result in possible damage to the equipment,
serious personal injury or death.
• Before beginning the installation, verify that the unit model is
correct for the job. The unit model number is printed on the
data label.
• This equipment contains liquid and gaseous refrigerant
under high pressure. DO NOT USE ANY PORTION OF THE
CHARGE FOR PURGING OR LEAK TESTING. Installation
or servicing should only be performed by qualified trained
personnel thoroughly familiar with this type equipment.
• Installation of equipment may require brazing operations.
Installer must comply with safety codes and wear appropriate
safety equipment(safetyglasses,workgloves, fire extinguisher,
etc.) when performing brazing operations.
• This unit is designed for outdoor installations only and should be
located in a position as shown on page 4. Unit dimensions
are shown in Figure 10 & Table 9, (page 15).
• The installer should become familiar with the units wiring
diagram before making any electrical connections to the unit.
See the unit wiring label or Figure 11 (page 16)and Figure
12 (page 17).
• Follow all precautions in the literature, on tags, and on labels
provided with the equipment. Read and thoroughly understand
the instructions provided with the equipment prior to performing
the installation and operational checkout of the equipment.
• Use caution when handling this appliance or removing
components. Personal injury can occur from sharp metal
edges present in all sheet metal constructed equipment.
REQUIREMENTS & CODES
• All electrical wiring must be completed in accordance with
local, state and national codes and regulations and with the
National Electric Code (ANSI/NFPA 70) or in Canada the
Canadian Electric Code Part 1 CSA C.22.1.
• The installer must comply with all local codes and regulations
which govern the installation of this type of equipment.
Local codes and regulations take precedence over any
recommendations contained in these instructions. Consult
local building codes and the National Electrical Code (ANSI
CI) for special installation requirements.
• Air Ducts must be installed in accordance with the standards
of the National Fire Protection Association “Standards for
Installation of Air Conditioning and Ventilation Systems” (NFPA
90A), “Standard for Installation of Residence Type Warm Air
Heating and Air Conditioning Systems” (NFPA 90B), these
instructions, and all applicable local codes.
• Verify the required speed from the airflow data found in Table
2, (page 9). Place appropriate wire on the appropriate
motor speed tap for the required airflow.

4
GENERAL INFORMATION
This packaged air conditioner is designed only for outdoor
ground level installations and can be readily connected to the
high static duct system of a home. This unit has been tested
for capacity and efficiency in accordance with AHRI Standards
and will provide many years of safe and dependable comfort,
providing it is properly installed and maintained. Abuse, improper
use, and/or improper maintenance can shorten the life of the
appliance and create unsafe hazards.
To achieveoptimumperformanceand minimizeequipment failure,
it is recommended that periodic maintenance be performed on
this unit. The ability to properly perform maintenance on this
equipment requires certain mechanical skills and tools.
Before You Install this Unit
√The cooling load of the area to be conditioned must be
calculated and a system of the proper capacity selected. It is
recommended that the area to be conditioned be completely
insulated and vapor sealed.
√Check the electrical supply and verify the power supply is
adequate for unit operation. If there is any question concerning
the power supply, contact the local power company.
√All units are securely packed at the time of shipment and
upon arrival should be carefully inspected for damage prior
to installing the equipment at the job site. Verify coil fins are
straight. If necessary, comb fins to remove flattened or bent
fins. Claims for damage (apparent or concealed) should be
filed immediately with the carrier.
√Please consult your dealer for maintenance information
and availability of maintenance contracts. Please read all
instructions before installing the unit.
Locating the Air Conditioner
• Survey the job site to determine the best location for mounting
the outdoor unit. Select a solid, level position, preferably on
a concrete slab, slightly above the grade level, and parallel
to the home. If possible, select a site for the unit that is as
close as possible to the proposed return grille location. Unit
dimensions are shown in Figure 10 & Table 9, (page 15).
DO NOT PLACE UNIT UNDER THE HOME.
• The unit should be located with consideration of minimizing
the length of the supply and return ducts. If practical, place
the air conditioner and its ducts in an area where they will be
shaded from the afternoon sun, when the heat load is greatest.
• The length of the supply and return ducts should be kept to
a minimum with no sharp radius bends.
• Overhead obstructions, poorly ventilated areas, and areas
subject to accumulation of debris should be avoided. The
hot condenser air must be discharged up and away from the
home, and if possible, in a direction with the prevailing wind.
Do not place the unit in a confined space. See Figure 10 &
Table 9, (page 15) for unit dimensions.
• Sufficient clearance for unobstructed airflow through the
outdoor coil must be maintained in order to achieve rated
performance.
• Consideration should also be given to availability of electric
power, service access, noise, and shade.
Minimum Clearance Requirements
Sufficient clearance for unobstructed airflow through the outdoor
coil must be maintained in order to provide room for proper
servicing and achieve rated performance. See Figure 1 for
minimum clearances to obstructions.
Service Access Clearance:
Blower and control access panels............................. 24”
Compressor compartment access panel................... 24”
Clearance from top of unit ........................................ 72”
Clearance around condenser coil area to
Wall or shrubs (excludes duct panel side)................. 12”
Clearances to Combustibles:
Combustible base - wood or Class A, B, or C
roof covering material ................................................ 0”
Supply & return air ducts ........................................... 0”
Duct connection side ................................................. 0”
Air Duct System
Air ducts must be installed in accordance with the standards of
the National Fire Protection Association “Standard for Installation
of Air Conditioning and Ventilation Systems” (NFPA 90A),
“Standard for Installation of Residence Type Warm Air Heating
and Air Conditioning Systems” (NFPA 90B), these instructions,
and all applicable codes. NFPA publications are available by
writing to: National Fire Protection Association, Batterymarch
Park, Quincy, ME 02269 or visit www.NFPA.org on the web.
• Design the duct work according to methods described by the
Air Conditioning Contractors of America (ACCA).
• The supply duct system, including the number and type of
registers, will have much more effect on the performance of
the system than any other factor. The duct must be sufficiently
large to conduct an adequate amount of air to each register.
See Figure 2 (page 5).
• Duct work should be attached directly to the unit flanges for
horizontal applications.
• For highly resistive duct systems it may be necessary to add
an additional return air duct and or supply to achieve maximum
performance and prevent coil icing and refrigerant flood back.
• The air conditioning output of the system will not cool
the home if air is lost to the outside through leaks in the
duct system. Ducts that are collapsed or restricted by
foreign objects will also prevent adequate air flow.
• All duct work passing through unconditioned space must
be properly insulated to minimize duct losses and prevent
condensation. Use insulation with an outer vapor barrier.
Refer to local codes for insulation material requirements.
24"
12"
24"
TOP OF UNIT
TO BE
UNOBSTRUCTED
0"
Figure 1. Minimum Unit Clearances

5
Figure 2. Single & Multiple Duct Applications
MULTIPLE DUCT APPLICATIONSINGLE DUCT APPLICATION
AIR CONDITIONER INSTALLATION
Unpacking the Unit
It is recommended that the unit be unpacked at the installation
site to minimize damage due to handling.
CAUTION:
Do not tip the unit on its side. Oil may enter the
compressor and cause damage.
1. Remove the bands from around the unit.
2. Unfold the top and bottom cap flanges.
3. Carefully remove the top cap and tube.
Installing Return & Supply Air Collars (Optional)
Supply and return collars are not supplied with the unit but
are offered as accessory item. Check with your distributor for
pricing and availability. They can be easily positioned over the
unit openings and secured with sheet metal screws. See Figure
3 & Table 9, (page 15).
• The diameter of the return duct collar is 14”.
• The diameter of the supply duct collar is 12”.
• Before permanently installing the collars, it is recommended
you pre-fit them over the openings first to determine best fit
and alignment.
Transition
Duct Screws
Supply Air Return Air
Duct
Dimples
Figure 3. Return & Supply Air Collars
Supply Duct
1. Assemble the collar by overlapping the two ends.
NOTE: One end of the collar is slotted and the opposite end
has two small holes. Position the end with small screw holes
underneath the slotted end.
2. Fasten the collar ends with two self drilling sheet metal screws.
3. Position the collar over the opening and align the 4 holes in
the collar with the 4 holes (or dimples depending on model)
in the rear panel.
4. Using self-drilling screws (10-16x.5), secure the collar to the
rear panel.
Return Duct
1. Assemble the collar by overlapping the two ends.
NOTE: One end of the collar is slotted and the opposite end
has two small holes. Position the end with small screw holes
underneath the slotted end.
2. Fasten the collar ends with two self drilling sheet metal screws.
3. Position the collar over the opening. Align the four holes in
the collar with the four dimples or holes (depending on unit
model) in the panel.
4. Secure the collar to the rear panel using self tapping screws
(10-16x.5).
Locating & Installing the Return Air Assembly
To simplify installation, locate and install the return air assembly
first. If desired, the return opening can be located inside a closet
with louvered doors that has an open area equal to or greater
than a 12” x 20” grille. The return air grille can be placed in the
wall of a closet and the air ducted into the filter box through a
boxed-in area at the closet floor level (Figure 4 (page 6)).
Verify the filter is readily accessible.
NOTE: The return air box with grille and filter should not be
located in heavy traffic areas like hallways or center of rooms.
A good spot is in a corner or under a table, if a minimum two
inch clearance is available.
1. Start the installation from under the home by cutting a small
hole in the subfloor. Determine how the floor joist location
will affect cutting the opening needed for the return air box.
NOTE: Floor joists are generally located on 16” centers,
leaving 14-3/8” between joists.
2. After measuring the return air box (approximately 12-1/4” x
20-1/4”), cut the hole through the floor so that the box will fit
between the floor joists. Care should be taken when cutting

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Figure 4. Return Air Box
through carpeting to avoid snags. NOTE: In most installations
it will be necessary to cut a similar hole in the fiberboard
directly under the hole in the floor. However, if the floor is
more than ten inches deep, it will only be necessary to cut
a hole for the collar on the return air box or for the insulated
duct.
3. Set the box into the opening and fasten with screws or nails.
4. Install the filter and return air grille in the air box.
Connecting the Return & Supply Air Flexible Ducts
• Flexible ducts can be connected to the corresponding fittings
with the clamps provided with the ducts. See Figure 10 & Table
9, (page 15). NOTE: To prevent a loss in cooling capacity,
make sure all connections are tight.
• The flexible ducts may be cut to the required length, see
instructions packed with duct. Keep all ducts as short and
straight as possible. Avoid sharp bends.
• Ducts may be spliced with sheet metal sleeves and clamps.
• After the inner duct is connected to the proper fitting, the
insulation and plastic sleeve should be pulled over the
connection and clamped.
• Homes with multiple supply ducts (or special applications), a Y
fitting is available to divide the supply air so it can be ducted to
different areas of the home for more efficient cooling. NOTE:
For maximum performance, insulate the Y fitting.
Locating & Installing the Supply Damper(s)
CAUTION:
If installing this air conditioning system in
conjunction with a furnace, a damper must be
installed in the furnace base assembly to prevent
cold air from being discharged around the heat
exchanger. Damage to the heat exchanger
and asphyxiation may occur if a damper is not
installed.
Check with the furnace manufacturer for damper
requirements. Failure to install the required
furnace damper may invalidate code agency
listing and limited warranty on the furnace.
When locating the supply damper(s), carefully check floor joists
and frame members that could interfere with the installation of the
damper or flexible duct. Ideally, the damper should be located
in the bottom of the main duct, forward of center of the home,
at least three feet from the nearest register. See Figure 5. The
round supply opening in the slanted side of the damper should
face the side of the home where the air conditioner is located.
1. Locate the center of the heat duct by cutting a small hole in
the fiberboard below the duct at the desired location.
2. Cut a hole approximately 3/4” larger than the damper opening
in the fiberboard.
3. Cut a 9-1/8” x 13-1/8” hole in the duct and bend over all tabs
flat on the inside of the heat duct.
4. Insert the damper into the duct and bend over all tabs flat on
the inside of the heat duct.
5. Seal the opening between the fiberboard and damper or
flexible duct.
Condensate Drainage
A 3/4” condensate fitting extends out of the side of the unit
(Figure 6). The drain trap, shipped in the electrical compartment,
must be installed to prevent water from collecting inside the unit.
1. Thread the elbow provided with the unit into the drain
connection until hand tight.
2. Connect the condensate tubing onto the fitting, forming a trap
near the drain connection.
3. Route the condensate tube from the trap to a suitable drain.
NOTE: For proper drainage, make sure the trap is level to
the ground and tubing outlet is below trap level.
Figure 5. Supply Damper
Figure 6. Drain Trap
Elbow
P-Trap

7
ELECTRICAL CONNECTIONS
WARNING:
ELECTRICAL SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical power
to the indoor blower.
• When servicing controls, label all wires prior
to disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
• All electrical connections must be in compliance with all
applicable local codes and ordinances, and with the current
revision of the National Electric Code (ANSI/NFPA 70).
• For Canadian installations the electrical connections and
grounding shall comply with the current Canadian Electrical
Code (CSA C22.1 and/or local codes).
Pre-Electrical Checklist
√Verify that the voltage, frequency, and phase of the supply
source match the specifications on the unit rating plate.
√Verify that the service provided by the utility is sufficient to
handle the additional load imposed by this equipment. Refer
to the unit wiring label for proper high and low voltage wiring.
√Verify factory wiring is in accordance with the unit wiring
diagram Figure 11 (page 16)and Figure 12 (page 17).
Inspect for loose connections.
Line Voltage
• A wiring diagram is located on the inside cover of the electrical
box of the unit. The installer should become familiar with the
wiring diagram before making any electrical connections to
the unit.
• An electrical disconnect must be located within sight
of and readily accessible to the unit. This switch shall be
capable of electrically de-energizing the unit.
• Line voltage to the unit should be supplied from a dedicated
branch circuit containing the correct fuse or circuit breaker for
the unit. Incoming field wiring and minimum size of electrical
conductors and circuit protection must be in compliance with
information listed on the unit data label. Any other wiring
methods must be acceptable to authority having jurisdiction.
• Provide power supply for the unit in accordance with the
unit wiring diagram, and the unit rating plate. Connect the
line-voltage leads to the terminals on the contactor inside
the control compartment. Extend leads through power wiring
hole (Figure 7). Connect L1 & L2 directly to the contactor.
• The unit requires both power and control circuit electrical
connections. Refer to the wiring diagrams (Figure 11 (page
16)& Figure 12 (page 17)) for identification and location
of unit field wiring interfaces. Make all electrical connections
in accordance with all applicable codes and ordinances.
• Overcurrent protection must be provided at the branch circuit
distribution panel and sized as shown on the unit rating label
and according to applicable local codes. See the unit rating
plate for minimum circuit ampacity and maximum overcurrent
protection limits.
• Use only copper wire for the line voltage power supply to this
unit. Use proper code agency listed conduit and a conduit
Low Voltage
Line Voltage
Figure 7. Power Entry
connector for connecting the supply wires to the unit. Use of
rain tight conduit is recommended.
• 208/230 Volt units are shipped from the factory wired for 230
volt operation. For 208V operation, remove the lead from
the transformer terminal marked 240V and connect it to the
terminal marked 208V.
• Optional equipment requiring connection to the power or
control circuits must be wired in strict accordance of the NEC
(ANSI/NFPA 70), applicable local codes, and the instructions
provided with the equipment.
Grounding
WARNING:
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal
injury if an electrical fault should occur. Do not
use gas piping as an electrical ground!
This unit must be electrically grounded in accordance with
local codes or, in the absence of local codes, with the National
Electrical Code (ANSI/NFPA 70) or CSA C22.1 Electrical Code.
Ground the air conditioning unit using the green grounding screw
provided in the control panel.
Overcurrent Protection
Overcurrent protection must be provided at the branch circuit
distribution panel and sized as shown on the unit rating label and
according to applicable local codes. Generally, the best fuse or
breaker for any heat pump is the smallest size that will permit
the equipment to run under normal usage and provide maximum
equipment protection. Properly sized fuses and breakers also
prevent nuisance trips during unit startup.
NOTE: If a fuse blows or a breaker trips, always determine
the reason. Do not arbitrarily install a larger fuse or breaker
and do not, in any case, exceed the maximum size listed
on the data label of the unit.
Thermostat / Low Voltage Connections
• The unit is designed to operate from a 24 VAC Class II control
circuit. The control circuit wiring must comply with the current
provisions of the NEC (ANSI/NFPA 70) and with applicable
local codes having jurisdiction. Thermostat connections should
be made in accordance with the instructions supplied with the
thermostat and the indoor equipment.
• The low voltage wires must be properly connected. Route 24V
control wires through the sealing grommet near the power
entrance. See Figure 7. Recommended wire gauge and wire

8
lengths for typical thermostat connections are listed in Table
1.
• Single stage or two-stage heating thermostats can be used with
this equipment depending on optional accessories installed
with the unit. Select a thermostat that operates in conjunction
with the installed accessories.
• The thermostat should be mounted about 5 feet above the
floor on an inside wall. DO NOT install the thermostat on an
outside wall or any other location where its operation may be
adversely affected by radiant heat from fireplaces, sunlight,
lighting fixtures or convective heat from warm air registers or
electrical appliances. Refer to the thermostat manufacturer’s
instruction sheet for detailed mounting information.
Cooling Only Thermostat
Connect the red & yellow wires from the unit to the R& Y
terminals on the thermostat subbase. Connect the green wire
to the yellow wire at the unit. See Figure 8.
Heat / Cool Thermostat
For the highest efficiency, the use of a 2-stage Heating/Cooling
thermostat is recommended. The heat/cool thermostat prevents
simultaneous operation of the heating and cooling units and is
equipped with an ON-AUTO fan mode that allows the home owner
to operate the indoor blower when only air circulation is desired.
Connect the red, yellow, green and brown/orange low voltage
wires to the Ror RC, Y, G, W or W2 (if applicable) terminals
on the thermostat base. The black wire is the 24 volt common
required on some thermostats. See Figure 8.
Blower Speed
For optimum system performance and comfort, it may be
necessary to change the factory speed setting. See Table 2,
(page 9) for factory settings.
WARNING:
To avoid electric shock, personal injury, or death,
turn off the electric power at the disconnect or the
main service panel before making any electrical
connections.
CAUTION:
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
CAUTION:
To avoid personal injury or property damage,
make certain that the motor leads cannot come
into contact with any metal components of the
unit.
1. Disconnect all electrical power to the unit and remove the
service panel.
2. Locate the orange and red wires terminated to the blower
motor. NOTE: The orange wire controls cooling operation
and the red wire controls the heating operation.
3. Verify the required speed from the airflow data found in Table
2, (page 9). Place appropriate wire on the appropriate
motor speed tap for the required airflow.
4. Check all factory wiring as shown in the wiring diagram and
inspect the connections to make sure none of them loosened
during shipping or installation.
START UP & ADJUSTMENTS
Pre-Start Checklist
The following check list should be observed prior to starting
the unit.
√Verify the unit is level and allows proper condensate drainage.
√Verify the outdoor coil and top of the unit are free from
obstructions and debris, and all equipment access/control
panels are in place. Unit must be installed with the proper
clearances shown in Figure 1 (page 4).
√Verify that the duct work is sealed to prevent air leakage.
√Verify that the line voltage power leads are securely connected
and the unit is properly grounded. Check the condenser fan
to make sure it turns freely.
√Verify the thermostat is wired correctly and installed in a
proper location. Make sure the low voltage wires are securely
connected to the correct leads on the low voltage terminal
strip.
√Verify that the power supply branch circuit overcurrent
protection is sized properly.
√To achieve rated capacity and efficiency the compressor must
be exposed to refrigerant for at least 24 hours prior to running.
After unit startup, the compressor must run for a minimum of
12 hours.
Figure 8. Low Voltage Connections
RED
R
YELLOW
Y
GREEN
G
BROWN
*W1
ORANGE
RED
R
YELLOW
Y
GREEN
G
BROWN
*W
ORANGE
4 WIRE HEAT/COOL THERMOSTAT
Two Stage Heating T-Stat
Single Stage Electric Heat
RED
R
YELLOW
Y
GREEN
2 WIRE COOLING
(ONLY) THERMOSTAT
CONTROL WIRE LEGEND:
GREEN - Blower Relay
RED - Transformer (24V)
YELLOW - Cooling 1st Stage
BROWN - Heating 1st Stage
ORANGE - Heating 2nd Stage
*W2
*Connected when Optional Electric Heating Kit is Installed.
Table 1. Control Wiring (24V)
WIRE GAUGE
RECOMMENDED MAXIMUM
WIRE LENGTH (FT) FROM UNIT
TO THERMOSTAT
22 45
20 70
18 115
16 180

9
Table 2. Blower Data
HEAT RISE DATA (BASED ON NOMINAL 10KW ELECTRIC HEAT KIT)
UNIT BLOWER
SETTING
EXTERNAL STATIC PRESSURE DROP - INCHES WATER COLUMN
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE CFM HEAT
RISE
018K
Tap T1 609 52 541 58 522 61 450 70 390 81 333 95 - - - -
Tap T2* 729 43 690 46 651 49 599 53 542 58 475 67 421 75 357 88
Tap T3 859 37 813 39 768 41 724 44 673 47 609 52 555 57 497 64
Tap T4** 1123 28 1100 29 1065 30 1023 31 978 32 929 34 877 36 820 39
Tap T5 1359 23 1320 24 1302 24 1280 25 1243 25 1205 26 1162 27 1112 28
024K
Tap T1* 950 33 823 38 881 36 832 38 788 40 722 44 655 48 593 53
Tap T2** 1123 28 1100 29 1065 30 1023 31 978 32 929 34 877 36 820 39
Tap T3 1189 27 1158 27 1141 28 1084 29 1047 30 1009 31 959 33 906 35
Tap T4 1291 24 1246 25 1236 26 1195 26 1161 27 1120 28 1075 29 1031 31
Tap T5 1359 23 1320 24 1302 24 1280 25 1243 25 1205 26 1162 27 1112 28
030K
Tap T1 965 33 910 35 870 36 800 39 720 44 665 48 615 51 560 56
Tap T2** 1100 29 1050 30 1010 31 955 33 890 35 830 38 750 42 700 45
Tap T3* 1160 27 1120 28 1080 29 1030 31 980 32 930 34 880 36 800 39
Tap T4 1440 22 1400 23 1360 23 1320 24 1280 25 1220 26 1180 27 1120 28
Tap T5 1560 20 1530 21 1490 21 1440 22 1400 23 1360 23 1310 24 1270 25
036K
Tap T1** 1215 26 1175 27 1130 28 1075 29 1020 31 970 33 900 35 840 38
Tap T2 1313 24 1277 25 1236 26 1190 27 1153 27 1104 29 1051 30 992 32
Tap T3 1460 22 1415 22 1385 23 1335 24 1275 25 1225 26 1170 27 1120 28
Tap T4* 1502 21 1466 22 1437 22 1388 23 1345 23 1305 24 1251 25 1204 26
Tap T5 1565 20 1525 21 1490 21 1450 22 1410 22 1370 23 1315 24 1270 25
042K
Tap T1 1375 23 1345 23 1310 24 1275 25 1240 25 1205 26 1160 27 1120 28
Tap T2** 1470 21 1435 22 1400 23 1370 23 1335 24 1300 24 1260 25 1215 26
Tap T3* 1600 20 1570 20 1535 21 1505 21 1470 21 1440 22 1400 23 1355 23
Tap T4 1715 18 1680 19 1650 19 1620 20 1585 20 1545 20 1505 21 1470 21
Tap T5 1895 17 1865 17 1830 17 1795 18 1760 18 1730 18 1695 19 1655 19
048KA
Tap T1 1375 23 1345 23 1310 24 1275 25 1240 25 1205 26 1160 27 1120 28
Tap T2** 1470 21 1435 22 1400 23 1370 23 1335 24 1300 24 1260 25 1215 26
Tap T3 1600 20 1570 20 1535 21 1505 21 1470 21 1440 22 1400 23 1355 23
Tap T4* 1642 19 1620 20 1580 20 1545 20 1511 21 1472 21 1433 22 1390 23
Tap T5 1895 17 1865 17 1830 17 1795 18 1760 18 1730 18 1695 19 1655 19
X60KA
Tap T1** 1390 23 1350 23 1310 24 1270 25 1240 25 1205 26 1160 27 1120 28
Tap T2 1540 21 1510 21 1480 21 1440 22 1410 22 1380 23 1340 24 1310 24
Tap T3 1700 19 1670 19 1630 19 1600 20 1580 20 1540 21 1510 21 1480 21
Tap T4* 1800 18 1762 18 1737 18 1705 19 1661 19 1630 19 1600 20 1565 20
Tap T5 2080 15 2030 16 2020 16 1970 16 1940 16 1910 17 1870 17 1840 17
NOTES
Temperature rises shaded gray are for reference only. These conditions are not recommended.
* Denotes factory set cooling speed
** Denotes factory set electric heating speed
Start-Up Procedure
CAUTION:
If the unit is equipped with a crankcase heater,
allow 24 hours prior to continuing the start up
procedures to allow for heating of the refrigerant
compressor crankcase. Failure to comply may
result in damage and could cause premature
failure of the system. This warning should be
followed at initial start up and any time the power
has been removed for 12 hours or longer.
The control circuit thermostat may consist of an anti-short cycle
timer that will not let the compressor re-start before 5 minutes
have elapsed.
1. Set the system mode to OFF and the temperature mode to
its highest setting.
2. Turn power on at the disconnect switch.
3. Set the system mode to ON or COOL.
4. Set the temperature mode below room temperature. Verify
that the indoor blower, outdoor fan, and compressor energize
and the cooling function starts.
5. Verify the discharge air grilles are adjusted and the system
air is balanced.
6. Verify the duct work has no air leaks.
7. Verify the condensate drain is installed correctly and functions
properly.

10
The compressor is hermetically sealed at the factory and does
not require lubrication.
REFRIGERANT CHARGING
Charging the Unit
(with Outdoor Temperatures Above 65° F)
CAUTION:
This air conditioner contains liquid and gaseous
refrigerant under pressure. Adjustment of
refrigerant charge should only be attempted
by qualified, trained personnel thoroughly
familiar with the equipment and safe responsible
refrigerant handling procedures. Under no
circumstances should the homeowner attempt
to install and/or service this equipment. Failure
to comply with this warning could result in
equipment damage, personal injury, or death.
NOTE: The refrigerant charge can be checked and adjusted
through the service ports provided external to the unit. Use
only gage line sets which have a “Schrader” depression device
present to actuate the valve.
For P7RE-018K/024K/030K/036K/042K/X60KA models, use
the follow charging method
1. With the system operating at steady-state, measure the liquid
refrigerant pressure in psig at the service valve.
2. Measure the liquid refrigerant temperature (° F) at the service
valve.
3. For the temperature measured, determine the required liquid
refrigerant pressure from Table 3, (page 11), Table 4, (page
11), Table 5, (page 12) Table 6, (page 12), & Table 7,
(page 13) for 1.5, 2, 2.5, 3, & 3.5 ton units. For 5 ton units
see Figure 9 (page 14).
• If the pressure measured in step 1 is greater than the required
liquid refrigerant pressure determined in step 3, then there
is too much charge in the system. Remove refrigerant and
repeat steps 1 through 3 until the system is correctly charged.
• If the pressure measured in step 1 is less than the required
liquid refrigerant pressure determined in step 3, then there
is too little charge in the system. Add refrigerant and repeat
steps 1 through 3 until the system is correctly charged.
For P7RE-048KA models, use the follow charging method:
1. With the system operating at steady-state, measure the
superheat at suction line service valve.
2. Measure the outdoor dry bulb temperature (° F) and indoor
wet bulb temperature (° F).
3. Determine the required superheat at suction service valve
from Table 8, (page 13) within +/- 1 (° F).
• If your measured superheat at the suction valve is LESS THAN
the recommended superheat value in the table, then REMOVE
refrigerant.
• If your measured superheat at the suction valve is GREATER THAN
the recommended superheat value in the table, then ADD refrigerant.
Safety switches
The high-pressure switch is factory-installed and located in the
liquid line internal to the unit. The switch is designed to protect
the system when very high pressures occur during abnormal
conditions. Under normal conditions, the switch is closed. If the
liquid pressure rises above 650 psig, the switch will open and
de-energize the unit. The switch will close again when the liquid
pressure decreases to 460 psig.
8. Set the temperature mode above room temperature. The unit
should stop.
9. Instruct the homeowner on unit and thermostat operation and
filter servicing.
Air Circulation
Leave the thermostat system mode on OFF, and set the fan
mode to ON. Blower should run continuously. Check the air
delivery at the supply registers and adjust register openings for
balanced air distribution. Examine ducts for leaks or obstruction
if insufficient air is detected.
Set the thermostat fan mode to AUTO. The blower should stop
running.
System Cooling
Set the thermostat’s system mode to COOL and the fan mode
to AUTO. Lower the thermostat temperature selector below the
existing room temperature. Allow the cooling system to operate
for several minutes and check for the discharge of cool air at
the supply registers.
System Heating
(Available only when Electric heat is supplied) Set the thermostat’s
system mode to HEAT and the fan mode to either AUTO
(intermittent air) or to ON (continuous air). Raise the thermostat’s
temperature selector above the existing room temperature and
check the following:
1. The compressor and outdoor fan should not run.
2. The blower will run according to the thermostat’s fan mode
setting.
AIR CONDITIONER MAINTENANCE
WARNING:
To prevent electrical shock, personal injury, or
death, disconnect all electrical power to the unit
before performing any maintenance or service.
The unit may have more than one electrical
supply.
Proper maintenance is important to achieve optimum
performance from the air conditioner. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these skills,
contact your dealer for maintenance. Consult your local dealer
about the availability of maintenance contracts.
Routine maintenance should include the following:
• Inspect and clean or replace air filters at the beginning of each
heating and cooling season, or more frequently if required.
• Inspect the condensate drain and outdoor coil at the beginning
of each cooling season. Remove any debris. Clean the outdoor
coil and louvers as necessary using a mild detergent and
water. Rinse thoroughly with water.
• Inspect the electrical connections for tightness at the beginning
of each heating and cooling season. Service as necessary.
CAUTION:
The unit should never be operated without a
filter in the return air system. Replace disposable
filters with the same type and size.
• Do not add additional oil to motors unequipped with oil tubes.

11
Refrigerant Charging Tables
LEGEND
Shaded boxes indicate flooded conditions.
Rated design values. The suction pressure
will vary from design value if outdoor air
flow, entering dry bulb, or entering wet bulb
temperatures vary.
NOTES:
1. All pressures are listed psig and all temperatures in °F
2. Discharge temperatures greater than charted values indicate
an undercharged system.
SUCT.
PRESS.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
134 245 130
136 247 130 267 134
138 250 130 269 134 289 138
140 248 130 272 134 292 138 312 142
142 248 130 271 134 294 138 314 142 335 146
144 271 134 293 138 316 142 336 146 358 150
146 294 137 316 141 338 145 359 150 381 154
148 317 141 338 145 360 149 381 154 404 158
150 317 141 339 145 361 149 382 153 404 158
152 340 145 362 149 383 153 405 157
154 363 149 384 153 406 157
156 386 153 407 157
158 408 157
160
Table 3. Charging Table for 1.5 Ton Units
(018K Model)
Table 4. Charging Table for 2 Ton Units
(024K Model)
SUCT.
PRESS.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
128
130 252 146
132 253 157 275 139
134 255 169 277 149 297 134
136 252 207 279 159 300 143 317 133 333 127
138 253 224 278 186 300 158 321 139 337 134 352 127
140 279 201 302 172 323 149 341 143 356 134 371 128
142 303 186 324 161 344 149 360 140 375 134 389 130
144 326 175 347 158 366 143 379 140 393 135
146 349 168 368 153 387 140 398 141
148 371 163 390 149 409 137
150 392 159 411 146
152 414 155
154

12
Table 5. Charging Table for 2.5 Ton Units
(030K Model)
SUCT.
PRESS.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
128
130 258 138
132 259 150 281 138
134 260 161 283 148 303 139
136 259 191 285 158 306 148 325 142 343 139
138 260 208 284 181 307 161 328 148 346 147 364 142
140 286 195 309 175 330 157 350 155 368 149 385 145
142 310 188 332 170 353 163 372 155 389 151 405 149
144 334 184 355 172 376 161 393 157 410 155
146 357 182 378 171 398 162 415 160
148 380 181 401 172 421 164
150 403 181 423 173
152 426 182
154
SUCT.
PRESS.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
128
130 260 122
132 262 133 284 127
134 263 145 286 137 307 130
136 263 166 288 147 310 139 330 136 350 135
138 264 183 289 163 312 149 334 142 354 142 373 139
140 290 178 314 162 337 149 357 151 377 146 396 143
142 315 176 339 161 361 157 381 153 400 150 419 148
144 340 176 363 166 385 158 405 156 424 154
146 365 176 388 168 410 161 428 160
148 390 178 412 170 434 164
150 414 180 436 173
152 439 182
154
Table 6. Charging Table for 3 Ton Units
(036K Model)

13
SUCT.
PRESS.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
LIQ.
PRESS.
DIS.
TEMP.
123 257 140
125 259 145 282 142
127 261 151 284 147 307 145
129 267 148 286 152 309 150 332 147
131 271 151 292 152 311 154 334 152 357 150
133 295 155 316 156 336 157 359 154 382 153
135 320 159 341 159 361 159 384 157 408 156
137 344 163 365 162 387 161 410 160 433 159
139 348 167 369 166 390 165 412 164 435 163
141 372 170 393 169 415 168 437 166
143 397 173 418 172 439 170
145 421 177 443 175
147 446 179
149
Table 7. Charging Table for 3.5 Ton Units
(042K Model)
Table 8. Charging Table for 4 Ton Units
(048KA Model)
INDOOR WET-BULB TEMPERATURE (°F)
57 59 61 63 65 67 69 71 73 75 77
OUTDOOR DRY-BULB TEMPERATURE (°F)
60 26.6 27.9 29.5 31.5 33.7 36.3 39.2 40.0 40.0 40.0 40.0
65 21.6 22.8 24.3 26.2 28.3 30.8 33.6 36.7 40.0 40.0 40.0
70 17.2 18.3 19.7 21.4 23.4 25.8 28.5 31.5 34.8 38.4 40.0
75 13.3 14.3 15.6 17.2 19.1 21.3 23.9 26.8 30.0 33.5 37.4
80 10.0 10.9 12.0 13.5 15.3 17.5 19.9 22.7 25.8 29.2 32.9
85 7.2 8.0 9.0 10.4 12.1 14.1 16.5 19.1 22.1 25.4 29.0
90 5.0 5.6 6.6 7.8 9.4 11.3 13.6 16.1 19.0 22.2 25.7
95 5.0 5.0 5.0 5.8 7.3 9.3 11.2 13.7 16.4 19.5 22.9
100 5.0 5.0 5.0 5.0 5.7 7.4 9.4 11.7 14.4 17.4 20.6
105 5.0 5.0 5.0 5.0 5.0 6.3 8.2 10.4 12.9 15.8 18.9
110 5.0 5.0 5.0 5.0 5.0 5.7 7.5 9.6 12.0 14.7 17.8
115 5.0 5.0 5.0 5.0 5.0 5.7 7.3 9.3 11.6 14.2 17.2
-Superheat tolerance is ± 1°F
-Boxed data point is the performance rated condition
-Having Difficulties? Try www.chargecalculator.com

14
P7RE-060KA Charging Chart-Cooling
200
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
520
540
560
580
600
75 80 85 90 95 100 105110 115120 125 130 13
5
Liquid Pressure (psig)
Liquid Temperature ( ° F )
Remove refrigerant when above curve
Add refrigerant when below curve
Figure 9. Charging Chart for 5 Ton Units
(X60KA Model)

15
FIGURES & TABLES
L
W
Top View
9.15”
9” 17.50”
Opening for
12" Diameter
Return Duct
Opening for
12" Diameter
Supply Duct
3” 5.5”
1"
3.15”
“A”
“B”
Rear View
(1.5, 2, 2.5, & 3 Ton)
18.01
1.75” Ø Electric Heater
Power Supply
1.13” Ø Power Supply
.88” Ø Low Voltage Supply
Control
Access
Panel
Blower Access Panel
H17.86
15.36
10.10
3/4" NPT
Drain Connection
1"
12.13
1.38 3.2
3.2 5.29
Side
View
Figure 10. Unit Dimensions
A
3”
Opening for
12" Diameter
Supply Duct
9.15
17.50
9.0
Opening for
14" Diameter
Return Duct
10.15
5.5 B
1”
3.15
Rear View
(3.5, 4, & 5 Ton)
MODEL
NUMBER
LENGTH
-L-
WIDTH
W
HEIGHT
-H- -A- -B- RETURN DIAMETER
(IN)
SUPPLY DIAMETER
(IN)
018K 49 35 22.2 35.02 2.48 12 12
024K 49 35 22.2 35.02 2.48 12 12
030K 49 35 22.2 35.02 2.48 12 12
036K 49 35 22.2 35.02 2.48 12 12
042K 49 35 30.2 35.02 2.48 14 12
048KA 49 35 30.2 35.02 2.48 14 12
X60KA 49 35 34.2 35.02 2.48 14 12
Table 9. Physical Data

16
3 AMP FUSE
COMPRESSOR
OUTDOOR
FAN MOTOR
S
R
C
L2 L1
T2 T1
COMPRESSOR
CONTACTOR
24V
COM
HIGH PRESSURE
SWITCH
240V
LOW
PRESSURE
SWITCH
(SELECT MODELS
ONLY)
S
R
C
5 4 3 2 1 9 8 7 6
COM NO
NC
F
H
C
RELAY
TRANSFORMER
BLUE
ORANGE
RED
BLACK
BLACK
YELLOW
YELLOW YELLOW/BLACK
YELLOW
YELLOW/BLACK
PTCR
L1 L2 GND GROUNDING
SCREW
DUAL
CAPACITION
Y1 W2
EY2 OGC
R
BLACK
BLACK
5 4 3 2 1
N
G
L
C
BLOWER
MOTOR
BLACK
YELLOW
1. Couper le courant avant de faire letretien. 2. Employez uniquement des conducteurs en cuivre. 3. Ne convient pas aux installations de plus de 150 V a la terre.
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
WIRING DIAGRAM
Packaged Air Conditioner - Single Phase NOTES: 1. Disconnect all power before servicing. 2. For supply connections use copper conductors only. 3. Not suitable on systems that exceed 150 V to ground. 4. For replacement wires use conductors suitable for 105° C. 5. See installation instructions for blower motor airflow settings and terminal locations.
YELLOW
RED
GREEN
BROWN
ORANGE
RED
RED
RED
BLACK
BLACK
WHITE
ORANGE
GREEN/YELLOW
GREY
YELLOW
RED
YELLOW
10270890
(Replaces 711407C)
06/19
BLACK
BROWN
SEE NOTE 5
Figure 11. Wiring Diagram (1.5, 2, & 2.5 Ton Models)
Wiring Diagrams

17
3 AMP FUSE
COMPRESSOR
OUTDOOR
FAN MOTOR
S
R
C
L2 L1
T2 T1
COMPRESSOR
CONTACTOR
24V
COM
HIGH PRESSURE
SWITCH
240V
LOW
PRESSURE
SWITCH
(SELECT MODELS
ONLY)
S
R
C
5 4 3 2 1 9 8 7 6
COM NO
NC
F
H
C
RELAY
TRANSFORMER
BLUE
ORANGE
RED
BLACK
BLACK
YELLOW
YELLOW YELLOW/BLACK
YELLOW
YELLOW/BLACK
L1 L2 GND GROUNDING
SCREW
DUAL
CAPACITION
Y1 W2
EY2 OGC
R
5 4 3 2 1
N
G
L
C
BLOWER
MOTOR
SEE NOTE 5
BLACK
YELLOW
1. Couper le courant avant de faire letretien. 2. Employez uniquement des conducteurs en cuivre. 3. Ne convient pas aux installations de plus de 150 V a la terre.
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
WIRING DIAGRAM
Packaged Air Conditioner - Single Phase NOTES: 1. Disconnect all power before servicing. 2. For supply connections use copper conductors only. 3. Not suitable on systems that exceed 150 V to ground. 4. For replacement wires use conductors suitable for 105° C. 5. See installation instructions for blower motor airflow settings and terminal locations.
YELLOW
RED
GREEN
BROWN
ORANGE
RED
RED
RED
BLACK
BROWN
BLACK
WHITE
ORANGE
GREEN/YELLOW
GREY
YELLOW
RED
YELLOW
10270690
BLACK
(Replaces 711408A)
06/19
Figure 12. Wiring Diagram (3, 3.5, 4, & 5 Ton Models)

18

19

INSTALLATION CHECKLIST
1033141A
(Replaces 10331410)
REPLACEMENT PARTS
Replacement parts are available through your distributor. Please
have the complete model and serial number of the unit when
ordering replacement parts.
ELECTRICAL:
• Capacitors • Temperature Limit Switches
• Compressors • Thermostats
• Contactors • Time Delay Relays
• Pressure Switches • Transformers
• Relays
MOTORS:
• Blower Motor
• Fan Motor
COMPONENTS:
• Blower Assembly • Fan Grille
• Cabinet Panels • Filter/Driers
• Expansion Valves
REFRIGERATION SYSTEM
Was unit given 24 hr warm up period
for crankcase heaters (if equipped)? YES NO
Stage-1 Liquid Pressure (high side) _______________________________________________________
Stage-1 Suction Pressure (low side) _______________________________________________________
ELECTRICAL SYSTEM
Electrical connections tight? YES NO
Line voltage polarity correct? YES NO
Has the thermostat been calibrated? YES NO
Is the thermostat level? YES NO
Is the heat anticipator setting correct?
(If Applicable) YES NO
Rated Voltage:_________________________________________________________________ VOLTS
L1-L2 Volts: ___________________________________________________________________ VOLTS
INSTALLATION ADDRESS:
CITY _________________________________________ STATE_____________________________
UNIT MODEL # _______________________________________________________________________
UNIT SERIAL # _______________________________________________________________________
Unit Installed Minimum clearances per
Figure 1 (page 4)?YES NO
INSTALLER NAME:
CITY _________________________________________ STATE_____________________________
Has the owner’s information been
reviewed with the customer? YES NO
Has the Literature Package been left
with the unit? YES NO
Specifications & illustrations subject to change without notice or incurring obligations (12/20).
© Nortek Global HVAC LLC 2020. All Rights Reserved.