Installation Manual
INSTALLATION INSTRUCTIONS
14 SEER
Split System Heat Pump & Air Conditioner
1.5-5 Tons
R410A
NOTE: Appearance of unit may vary.
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION
WARNING
These instructions are intended as an aid to qualified
licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions
thoroughly before attempting installation or operation.
Failure to follow these instructions may result in improper
installation, adjustment, service or maintenance possibly
resulting in fire, electrical shock, property damage,
personal injury or death.
DO NOT DESTROY THIS MANUAL
Please read carefully and keep in a safe place for future reference by a serviceman.
TABLE OF CONTENTS
1.0 SAFETY..................................................................................................................3
1.1 INSPECTION....................................................................................................4
1.2 LIMITATIONS....................................................................................................4
2.0 GENERAL..............................................................................................................4
3.0 UNIT INSTALLATION............................................................................................6
3.1 LOCATION.......................................................................................................6
3.2 GROUND INSTALLATION...............................................................................6
3.3 ROOF INSTALLATION.....................................................................................6
3.4 UNIT PLACEMENT..........................................................................................6
3.5 UNIT MOUNTING............................................................................................7
3.6 FACTORY-PREFERRED TIE-DOWN METHOD.............................................8
3.7 PRECAUTIONS DURING LINE INSTALLATION.............................................9
3.8 PRECAUTIONS DURING BRAZING OF LINES.............................................10
3.9 PRECAUTIONS DURING BRAZING SERVICE VALVE.................................10
4.0 INTERCONNECTING TUBING............................................................................12
4.1 SUCTION AND LIQUID LINES .....................................................................12
4.2 MAXIMUM LENGTH OF LINES ....................................................................12
4.3 VERTICAL LIFT ............................................................................................12
5.0 EVACUATION......................................................................................................12
6.0 ELECTRICAL CONNECTIONS...........................................................................14
6.1 GENERAL INFORMATION & GROUNDING .................................................14
6.2 FIELD CONNECTIONS POWER WIRING ....................................................14
6.3 REMOVING THE TOP PANEL AND MOTOR................................................15
7.0 SYSTEM OPERATION........................................................................................15
7.1 COMPRESSOR CRANKCASE HEATER (CCH)...........................................15
7.2 REVERSING VALVE INTRODUCTION .......................................................15
7.3 PROTECTION FUNCTION INTRODUCTION...............................................16
7.4 DEFROST MODE INTRODUCTION.............................................................16
8.0 CHECKING REFRIGERANT CHARGE .............................................................17
8.1 CHARGING BY LIQUID PRESSURE............................................................17
8.2 CHARGING BY WEIGHT ..............................................................................17
8.3 FINAL LEAK TESTING .................................................................................17
9.0 WARRANTY.........................................................................................................18
10.0 WIRING DIAGRAM............................................................................................18
10.1 CONTROL WIRING FOR A/C UNITS..........................................................19
10.2 CONTROL WIRING FOR H/P UNITS .........................................................20
2
This document is customer property and is to remain with this unit.
These instructions do not cover all the different variations of systems nor does
it provide for every possible contingency to be met in connection with installation.
All phases of this installation must comply with NATIONAL, STATE, AND LOCAL
CODES. If additional information is required please contact your local distributor.
1.0 SAFETY
This is a safety alert symbol. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury.
This is an attention alert symbol. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury.
Understand and pay particular attention to the signal words DANGER, WARNING, or
CAUTION.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not avoided may result
in minor or moderate injury. It is also used to alert against unsafe practices and hazards
involving only property damage.
WARNING
Improper installation may create a condition where the operation of the product
could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance can cause
injury or property damage. Refer to this manual for assistance or for additional
information, consult a qualified contractor, installer or service agency.
CAUTION
This product must be installed in strict compliance with the installation instructions and any applicable local, state, and national codes including, but not
limited to building, electrical, and mechanical codes.
WARNING
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious injury, death
or property damage.
A fire or electrical hazard may result causing property damage, personal injury
or loss of life.
CAUTION
If using existing refrigerant lines make certain that all joints are brazed, not
soldered.
CAUTION
Scroll compressor dome temperatures may be hot. Do not touch the top of compressor; it may cause minor to severe burning.
3
1.1 INSPECTION
As soon as a unit is received, it should be inspected for possible damage during transit.
If damage is evident, the extent of the damage should be noted on the carrier's delivery
receipt. A separate request for inspection by the carrier's agent should be made in
writing. See Local distributor for more information.
Requirements For Installing/Servicing R410A Equipment
Gauge sets, hoses, refrigerant containers, and recovery system must be designed
to handle the POE or PVE type oils.
Manifold sets should be 800 PSIG high side and 250 PSIG low side with 550 PSIG
Iow side restart.
All hoses must have a 700 PSIG service pressure rating.
Leak detectors should be designed to detect R410A.
Recovery equipment (including refrigerant recovery containers) must be specifically designed to handle R410A.
Do not use an R-22 TXV.
Good Refrigeration practices require the installation of a field supplied liquid line
drier, as shown in Fig.1.
NOTE :
It will be more convenient to open
the service valve after removing
the Underside Clapboard.
Vapor Line Service Valve
Liquid Line Service Valve
LIQUID-LINE FILTER-DRIER
FIELD SUPPLIED AND INSTALLED
1.2 LIMITATIONS
The unit should be installed in accordance with all National, State, and Local Safety
Codes and the limitations listed below:
1.Limitations for the indoor unit, coil and appropriate accessories must also be observed.
2.The outdoor unit must not be installed with any duct work in the air stream. The outdoor fan is
the propeller type and is not designed to operate against any additional external static
pressure.
3.The maximum and minimum conditions for operation must be observed to assure a system
that will give maximum performance with minimum service.
4.This unit is not designed to operate with a low ambient kit. Do not modify the control system
to operate with any kind of Iow ambient kit.
5.The maximum allowable line length for this product is 150 feet (Just for scroll compressor).
2.0 GENERAL
The outdoor units are designed to be connected to a matching indoor coil with braze
connect lines. Units are factory charged with refrigerant for a matching indoor coil
plus 15 feet of field supplied lines.
Matching indoor coils are available with a thermostatic expansion valve or an orifice
for the most common usage. The orifice size and/or refrigerant charge may need to
be changed for some indoor-outdoor unit combinations, elevation differences or
total line lengths.
4
AIR DISCHARGE: ALLOW 60”
MINIMUM CLEARANCE.
W
AIR INLETS
LOUVERED PANELS
ALLOW 18”
MINIMUM
CLEARANCE
SERVICE ACCESS
ALLOW 24” CLEARANCE
NOTE: GRILL APPEARANCE
MAY VARY.
POWER WIRING
SEE DETAIL A
DETAIL A
CONTROL WIRING
7/8” (22.2mm)
KNOCKOUT
1-11/32” (34.5mm)
ACCESS VALVE
FOR LOW PRESSURE
NOTE:
ONLY ADOPTED BY HEAT PUMP,
CAN BE USED FOR MEASURING
PRESSURE AFTER SWITCHOVER
VALVE-SUCTION TO COMPRESSOR OR
REFRIGERANT CHARGE.
HOLE
1-3/32” (27.8mm)
SERVICE
FITTING
LIQUID LINE
CONNECTION
DIMENSIONAL DATA
MODEL SIZE
AC
18
24
30
36
42
48
60
HP
18/24
30
36
42
48
60
SERVICE
SUCTION LINE FITTING
CONNECTION
FIG.2 DIMENSIONS
Dimensions (Inches)
"H" in. [mm]
24-15/16[633]
24-15/16[633]
24-15/16[633]
24-15/16[633]
29-7/8[759]
33-3/16[843]
33-3/16[843]
33-3/16[843]
"W" in. [mm]
21-7/8[554]
23-5/8[600]
28[710]
29-1/8[740]
28[710]
28[710]
28[710]
29-1/8[740]
Refrigerant Connection
Service Valve Size
"L" in. [mm] Liquid in. Suction in.
21-7/8[554]
3/8
3/4
3/8
23-5/8[600]
3/4
28[710]
3/4
3/8
29-1/8[740]
3/4
3/8
28[710]
3/8
3/4
28[710]
3/8
3/4
28[710]
7/8
3/8
3/8
29-1/8[740]
7/8
5
3.0 UNIT INSTALLATION
3.1 LOCATION
Before starting the installation, select and check the suitability of the location for both
the indoor and outdoor unit. Observe all limitations and clearance requirements. The
outdoor unit must have sufficient clearance for air entrance to the condenser coil, for air
discharge and for service access. See Fig.2
NOTE
For multiple unit installations, units must be spaced a minimum of 36 inches
apart. (Coil face to coil face.)
If the unit is to be installed on a hot sun exposed roof or a black-topped ground area, the
unit should be raised sufficiently above the roof or ground to avoid taking the accumulated layer of hot air into the outdoor unit.
When mounting the outdoor unit on a roof, be sure the roof will support the unit's weight.
Properly selected isolation is recommended to alleviate sound or vibration transmission
to the building structure.
3.2 GROUND INSTALLATION
The unit may be installed at ground level on a solid base that will not shift or settle, causing strain on the refrigerant lines and possible leaks. Maintain the clearances shown in
Fig.2 and install the unit in a level position.
Normal operating sound levels may be objectionable if the unit is placed directly under
windows of certain rooms (bedrooms, study, etc.).
Top of unit discharge area must be unrestricted for at least 60 inches above the unit.
WARNING
The outdoor unit should not be installed in an area where mud or ice could cause
personal injury or system damage.
Elevate the unit sufficiently to prevent any blockage of the air entrances by snow in
areas where there will be snow accumulation. Check the local weather bureau for the
expected snow accumulation in your area. Isolate the unit from rain gutters to avoid any
possible wash out of the foundation.
3.3 ROOF INSTALLATION
When installing units on a roof, the structure must be capable of supporting the total
weight of the unit, including a padded frame unit, rails, etc., which should be used to
minimize the transmission of sound or vibration into the conditioned space.
3.4 UNIT PLACEMENT
1.
2.
3.
4.
Provide a base in the pre-determined location.
Remove the shipping carton and inspect for possible damage.
Compressor tie-down nuts should remain tightened.
Position the unit on the base provided.
CAUTION
This system uses R410A refrigerant which operates at higher pressure than
R-22. No other refrigerant may be used in this system. Gauge sets, hoses,
refrigerant containers, and recovery system must be designed to handle
R410A. If you are unsure, consult the equipment manufacturer.
6
The outdoor unit must be connected to the indoor coil using field supplied refrigerant
grade copper tubing that is internally clean and dry. Units should be installed only with
the tubing sizes for approved system combinations. The refrigerant charge shown in
the nameplate is for standard size interconnecting liquid line lengths up to 15 feet.
NOTE
Using a larger than specified line size could result in oil return problems. Using a
too small line will result in loss of capacity and other problems caused by insufficient refrigerant flow. Slope horizontal suction lines at least 1" every 20 feet
toward the outdoor unit to facilitate proper oil return.
3.5 UNIT MOUNTING
If elevating the heat pump, either on a flat roof or on a slab, observe the following guidelines.
1. The base pan provided elevates the heat pump 2” above the base pad.
2. If elevating a unit on a flat roof , use 4”× 4”(or equivalent) stringers
positioned to distribute unit weight evenly and prevent noise and vibration (See Fig.3).
NOTE:Do not block drain openings shown in Fig.3.
3. If unit must be elevated because of anticipated snow fall, secure unit and
elevating stand such that unit and/or stand will not tip over or fall off.
NOTE: To tie down unit, see 3.6.
BASE PAN (BOTTOM VIEW) DO NOT
OBSTRUCT DRAIN HOLES
(SHADED)
BASE PAD
(CONCRETE OR
OTHER SUITABLE
MATERIAL)
ELEVATION ABOVE ANTICIPATED
SNOW IS NECESSARY
Fig.3 RECOMMENDED ELEVATED INSTALLATION
7
3.6 FACTORY-PREFERRED TIE-DOWN METHOD
Step 1: Prior to installing clear pad of debris.
IMPORTANT
The pad must meet local codes and must be the proper thickness to
accommodate fasteners.
Step 2: Center and level unit onto pad.
Step 3: Using field supplied L-shaped bracket to locate holes on concrete and drill pilot
holes which is at least 1/4” deeper than fastener being used.
IMPORTANT
Self drilling screws to base pan should not exceed 3/8” long to avoid damaging
coil.
Step 4: Using conventional practices to install brackets, tighten concrete fasteners and
self-tapping screws (See Fig.4).
NOTE
NOTE: 1. One bracket for each side. For extra stability, 2 brackets for each side.
2. Do not over-tighten the concrete fastener to avoid weakening the concrete.
IMPORTANT NOTE:
These instructions are intended to provide a method to tie-down system to cement slab
as a securing procedure for high wind areas. It is recommended to check Local Codes
for tie-down methods and protocols.
The dimension see FIG.2
SEE DETAIL B
Brackets:
2” width, 1/16” thickness,
height as required.
Available from distributor
or in market place.
#7 X 3/8” Self Tapping Screws
(Don’t Exceed 3/8” long)
DETAIL B
1/4” Χ 1-1/2” Hex Washer Head Concrete Screws
(3/16” Pilot Hole Needed. Pilot Hole Should Be1/4” Deeper
Than The Fastener Embedment)
Fig.4 PREFERRED
TIE-DOWN
METHOD
REQUIRED
PARTS
LIST
8
3.7 PRECAUTIONS DURING LINE INSTALLATION
1. Install the lines with as few bends as possible. Care should be taken not to kink or
damage copper tubing. Use clean hard drawn copper tubing where no appreciable
amount of bending around obstruction is necessary, care must be taken to avoid
sharp bends which may cause a restriction.
2. The lines should be installed so that they will not obstruct service access to the coil,
air handling system or filter.
3. Care must also be taken to isolate the refrigerant lines to minimize noise transmission from the equipment to the structure.
4. The suction line must be insulated. Tape and suspend the refrigerant lines as shown.
DO NOT allow tube metal-to-metal contact. See Fig.5.
5. Use PVC piping as a conduit for all underground installations as shown in Fig.6.
Buried lines should be kept as short as possible to minimize the build up of liquid
refrigerant in the suction line during long periods of shutdown.
6. Pack a sealing material such as perma gum around refrigerant lines where they
penetrate a wall to reduce vibration and to retain some flexibility.
Suggested
optional
Sheet Metal Hanger
Insulated Suction Line
Tape
Incorrect
Insulated Liquid Line
Fig.5 Tubing Hanger
Fig.6 Underground Installation
9
WEATHERPROOF
DISCONNECT
SWITCH
TO
POWER
SUPPLY
TO
24V c
ontro
INDOOR
l sign
al
BLOWER
TO
COIL
Seal opening(s) with
permagum or equivalent
NOTE:All outdoor wiring must be weather proof
Fig.7 Typical Installation
3.8 PRECAUTIONS DURING BRAZING OF LINES
All outdoor unit and evaporator coil connections are copper-to-copper and should be
brazed with a phosphorous-copper alloy material such as Silfos-5 or equivalent. DO
NOT use soft solder. The outdoor units have reusable service valves on both the liquid
and suction connections. The total system refrigerant charge is retained within the
outdoor unit during shipping and installation. The reusable service valves are provided
to evacuate and charge per this instruction.
Serious service problems can be avoided by taking adequate precautions to assure an
internally clean and dry system.
CAUTION
Dry nitrogen should always be supplied through the tubing while it is being
brazed, because the temperature required is high enough to cause oxidation
of the copper unless an inert atmosphere is provide. The flow of dry nitrogen
should continue until the joint has cooled. Always use a pressure regulator
and safety valve to insure that only low pressure dry nitrogen is introduced into
the tubing.Only a small flow is necessary to displace air and prevent oxidation.
3.9 PRECAUTIONS DURING BRAZING SERVICE VALVE
Precautions should be taken to prevent heat damage to service valve by wrapping a wet
rag around it as shown in Fig.8. Also, protect all painted surfaces, insulation, during
brazing. After brazing cool joint with wet rag.
The valve can be opened by removing the plunger cap and fully inserting a hex wrench
into the stem and backing out counter-clockwise until valve stem just touches the chamfered retaining wall.
10
Connect the refrigerant lines using the following procedure:
1. Remove the cap and Schrader core from both the liquid and suction service valve
service ports at the outdoor unit. Connect 40 PSI nitrogen to the liquid line service
port.
wet rag
service valve
Fig.8 Heat Protection
2. Braze the liquid line to the liquid valve at the outdoor unit. Be sure to wrap the valve
body with a wet rag. Allow the nitrogen to continue flowing. Refer to the Tabular Data
Sheet for proper liquid line sizing.
3. Carefully remove the rubber plugs from the evaporator liquid and suction connections
at the indoor coil.
4. Braze the liquid line to the evaporator liquid connection. Nitrogen should be flowing
through the evaporator coil.
5. Remove the plastic cap away from the suction connection at the indoor coil. Braze the
suction line to the evaporator suction connection. Refer to the Table 1 for proper
suction line sizing.
6. Protect the suction valve with a wet rag and braze the suction line connection to the
outdoor unit. The nitrogen flow should be exiting the system from the suction service
port connection. After this connection has cooled, remove the nitrogen source from
the liquid fitting service port.
7. Replace the Schrader core in the liquid and suction valves.
8. Leak test all refrigerant piping connections including the service port flare caps to be
sure they are leak tight. DO NOT OVER TIGHTEN (between 40 and 60 inch -lbs.
maximum).
9. Evacuate the suction line, evaporator, and the liquid line, to 350 microns or less.
Table 1: Recommended Liquid and Suction Tube Diameters (ln.)
LIQUID
MODEL SIZE
SUCTION
Tube Diameter
Tube Diameter
18
3/8
3/4
24
3/8
3/4
30
3/8
3/4
36
3/8
3/4
42
3/8
3/4
48
3/8
7/8
60
3/8
7/8
11
10. Replace cap on service ports. Do not remove the flare caps from the service ports
except when necessary for servicing the system.
11. Release the refrigerant charge into the system. Open both the liquid and suction
valves by removing the plunger cap and with an hex wrench back out counter
-clockwise until valve stem just touches the chamfered retaining wall.
12. Replace plunger cap finger tight, then tighten an additional 1/12 turn (1/2 hex flat).
Cap must be replaced to prevent leaks.
WARNING
Never attempt to repair any brazed connections while the system is under pressure. Personal injury could result.
See "System Charge" section for checking and recording system charge.
4.0 INTERCONNECTING TUBING
4.1 SUCTION AND LIQUID LINES
Keep all lines sealed until connection is made.
Make connections at the indoor coil first.
Refer to Line Size Information in Tables 2 and 3 for correct size and multipliers to be
used to determine capacity for various suction line diameters and lengths of run. The
losses due to the lines being exposed to outdoor conditions are not included.
The factory refrigerant charge in the outdoor unit is sufficient for 15 feet of standard
size interconnecting liquid line. Calculate actual charge required with installed liquid
line size and length as below.
5/16” ± .4 oz. per foot
3/8” ± .6 oz. per foot
1/2” ± 1.2 oz. per foot
4.2 MAXIMUM LENGTH OF LINES
The maximum length of interconnecting line is 150 feet (Just for scroll compressor).
Always use the shortest length possible with a minimum number of bends.
NOTE: Excessively long refrigerant lines cause loss of equipment capacity.
4.3 VERTICAL LIFT
Keep the vertical lift to a minimum. Use the following guidelines when installing
the unit:
1. DO NOT exceed the vertical lift as indicated on Table 3.
2. It is recommended to use the smallest liquid line size permitted to minimize sys tem charge which will maximize compressor reliability.
3. Table 3 may be used for sizing horizontal runs.
5.0 EVACUATION
It will be necessary to evacuate the system to 350 microns or less. If a leak is
suspected, leak test with dry nitrogen to locate the leak. Repair the leak and test again.
To verify that the system has no leaks, simply close the valve to the vacuum pump
suction to isolate the pump and hold the system under vacuum. Watch the micron
gauge for a few minutes. If the micron gauge indicates a steady and continuous rise,
it's an indication of a leak. If the gauge shows a rise, then levels off after a few minutes
and remains fairly constant, its an indication that the system is leak free but still
contains moisture and may require further evacuation if the reading is above 350
microns.
12
LINE SIZING
TABLE 2: SUCTION LINE LENGTH/SIZE VS CAPACITY MULTIPLIER(R410A)
1 1/2 Ton
3/4" O.D.
5/8 Opt.
3/4* Std.
2 Ton
3/4" O.D.
5/8 Opt.
3/4* Std.
2 1/2 Ton
3/4" O.D.
5/8 Opt.
3/4* Std.
3 Ton
3/4" O.D.
5/8 Opt.
3/4* Std.
3 1/2 Ton
3/4" O.D.
5/8 Opt.
3/4* Std.
4 Ton
7/8" O.D.
3/4 Opt.
7/8* Std.
5 Ton
7/8" O.D.
1 1/8 Opt.
7/8* Std.
Optional
Standard
Optional
Standard
Optional
Standard
1.00
1.00
0.97
0.98
0.94
0.95
1.00
1.00
0.97
0.98
0.94
0.95
1.00
1.00
0.97
0.98
0.94
0.96
1.00
1.00
0.97
0.99
0.94
0.97
1.00
1.00
0.98
0.98
0.95
0.97
1.00
1.00
0.98
0.98
0.95
0.97
1.00
0.99
0.99
0.98
0.98
0.94
Optional
Standard
0.90
0.92
0.90
0.92
0.90
0.93
0.90
0.96
0.91
0.96
0.92
0.96
0.97
0.90
Model Size
Suction Line Connection Size
Suction Line Run-Feet
25'
50'
100'
150'
NOTES:
* Standard size
Using suction line larger than shown in chart will result in poor oil return and is not recommended.
TABLE 3 :LIQUID LINE SIZE (R410A)
Model Size
Line Size
Connection Size
(Inch O.D.)
Compressor
Type
Line Size
Connection And
Line Size
(Inch O.D.)
Liquid Line Size
Outdoor unit above or below indoor coil
Total Equivalent Length - Feet
25
50
75
100
125
Maximum Vertical Separation - Feet
150
Scroll
5/16
3/8*
25
25
50
50
60
60
58
60
40
40
30
30
Scroll
5/16
3/8*
25
25
36
50
29
60
23
60
16
40
9
30
Scroll
5/16
3/8*
25
25
49
50
38
60
27
60
17
40
6
30
5/16
3/8*
5/16
3/8*
3/8*
1/2
3/8*
1/2
25
25
25
25
25
25
25
25
50
50
23
50
46
50
50
50
37
60
4
43
38
56
56
60
22
60
N/A
36
30
55
44
60
7
40
N/A
30
22
40
32
40
N/A
30
N/A
24
15
30
20
30
1 1/2 Ton
3/8"
2 Ton
3/8"
2 1/2 Ton
3/8"
3 Ton
3/8"
Scroll
3 1/2 Ton
3/8"
Scroll
4 Ton
3/8"
Scroll
5 Ton
3/8"
Scroll
NOTES:
* Standard line size
N/A Application not recommended.
13
6.0 ELECTRICAL CONNECTIONS
6.1 GENERAL INFORMATION & GROUNDING
Check the electrical supply to be sure that it meets the values specified on the unit
nameplate and wiring label.
Power wiring, control (Iow voltage) wiring, disconnect switches and over current
protection must be supplied by the installer. Wire size should be sized per requirements.
CAUTION
All field wiring must USE COPPER CONDUCTORS ONLY and be in accordance
with Local, National Fire, Safety & Electrical Codes. This unit must be grounded
with a separate ground wire in accordance with the above codes.
The complete connection diagram and schematic wiring label is located on the inside
surface of the unit service access panel and this instruction.
6.2 FIELD CONNECTIONS POWER WIRING
1. Install the proper size weatherproof disconnect switch outdoors and within sight of
the unit.
2. Remove the screws at the side of the corner panel. Slide corner panel down and
remove from unit. See Fig. 9.
3. Run power wiring from the disconnect switch to the unit.
4. Route wires from disconnect through power wiring opening provided and into the
unit control box.
5. Install the proper size time-delay fuses or circuit breaker, and make the power
supply connections.
6. Energize the crankcase heater if equipped to save time by preheating the compressor oil while the remaining installation is completed.
NOTE: When changing the motor, remove top cover first.
CORNER
PANEL
HIGH VOLTAGE WIRING
LOW VOLTAGE WIRING
Fig.9 Typical Field Wiring
14
6.3 REMOVING THE TOP PANEL AND MOTOR
1/2” nut
NOTE:
Damage will occur to condenser unit
if you remove fan nuts prior to cover removal.
5/16” nuts
Fig.10 COVER AND FAN
When motor requires changing follow the steps below:
Step 1: Go into electrical panel, disconnect motor power lines.
IMPORTANT NOTE
Disconnect main power to unit. Severe burns and electrical shock will occur if
you do not disconnect main power.
Step 2: Remove cover (be careful of motor wires)
Step 3: Be sure to place fan cover unit on the ground as indicated in Fig. 10
IMPROTANT NOTE
Do not place or lean fan blades on ground or against surface.
Step 4: Remove fan motor by removing 5/16” nuts from cover.
Step 5: Remove fan blade from motor by removing 1/2” nut and place fan on the ground.
Step 6: Reverse removal process to reinstall the fan and motor.
IMPROTANT NOTE
When connecting motor wires be sure to check motor direction.
7.0 SYSTEM OPERATION
7.1 COMPRESSOR CRANKCASE HEATER (CCH) (Heat pump only,optional)
Refrigerant migration during the off cycle can result in a noisy start up. Add a crankcase
heater to minimize refrigeration migration, and to help eliminate any start up noise or
bearing “wash out”.
All heaters must be located on the lower half of the compressor shell. Its purpose is to
drive refrigerant from the compressor shell during long off cycles, thus preventing
damage to the compressor during start-up.
At initial start-up or after extended shutdown periods, make sure the heater is energized
for at least 12 hours before the compressor is started. (Disconnect switch on and wall
thermostat off.)
The crankcase heating start condition:
1.The crankcase heating start must meet two conditions:
A. Outdoor temperature <37.4° F.
B. Compressor stops working more than 3 hours.
2. Outdoor temperature <37.4° F and just connected to the power source.
The crankcase heating stop must meet condition:
Outdoor temperature >44.6° F or compressor start.
7.2 REVERSING VALVE INTRODUCTION (Heat pump only)
Reversing valve energizes at the heating conditions, and cut off at the cooling condition.
15
7.3 PROTECTION FUNCTION INTRODUCTION (Heat pump only)
Sensor T3 (condenser pipe temperature) and T4 (outdoor ambient temperature)
When open-circuit, compressor, outdoor fan motor and reverse valve will be OFF.
T3>143.6°F,compressor stop working ; T3<125.6°F,compressor start working.
When T4 < 5 °F, compressor will stop.If the electrical heater kit is installed in the
indoor unit, the outdoor unit would provide a signal to drive up the heater.
When T4 > 10.4 °F, compressor will restart.
Discharge temperature protection (optional)
When discharge temp. > 275 °F, the compressor will stop.
When discharge temp. < 194 °F, the compressor will restart.
High pressure protection (optional)
When high pressure > 638 PSIG, the compressor and outdoor fan motor will stop.
When high pressure < 464 PSIG, the compressor and outdoor fan motor will restart
(3 minutes delay necessary).
Low pressure protection
Low pressure < 21 PSIG, the compressor and outdoor fan motor will stop.
Low pressure > 44 PSIG, the compressor and outdoor fan motor will restart
(3 minutes delay necessary).
In stand-by status, the compressor will not start in low pressure protection.
Within 30 mins, if 4 protection cycles occurs.The system will be locked. It will
be restore after power cycle.
7.4 DEFROST MODE INTRODUCTION (Heat pump only)
Manual defrost mode
When the switch SW3-1 is set to “ON”, the system turns to the defrost mode.
By the logic of Shut-down conditions of defrost mode to exit the defrost mode.
Caution: Once the manual defrost mode is finished, please switch the PCB switch
back to “1”.
Start-up conditions of defrost mode:
7.4.1 When SW3-3 switch is set to “ON”(See in Fig 11), the mode will start up in any of
the following conditions:
1. Compressor operating, when T3 is < 30.2 °F last for 30 minutes;
2.T3 is < 28.4 °F and compressor operating for the first time after connected to the
power source.
3. When T3 is < 28.4 °F and The system standby two hours continuously .
SW3 Switch
Fig.11 SW3 Switch Location in the PCB Board
MANUAL DEFRO ST
AUTOMATIC DEFROST
RES ERVED
NOR MAL DE FROST
DEF ROSTIN G CYCL E:30MIN
D EFROSTING CYCLE:60M IN
16
7.4.2 When SW3-3 switch is set to “OFF”(See in Fig 11), the mode will start up in any of
the following conditions:
1. Compressor operating, when T3 is < 30.2 °F last for 60 minutes;
2.T3 is < 28.4 °F and compressor operating for the first time after connected to the power source.
3. When T3 is < 28.4 °F and The system is on standby for two hours .
Shut-down conditions of defrost mode:
The mode will shut down in any of the following conditions:
1. The defrosted time lasting for 10 minutes;
2. T3 is ≥ 77 °F when T4 ≥ 28.4 °F;
3. Compressor stop operating;
4. T3 is ≥ 77 °F last for 60s when T4 < 28.4 °F.
8.0 CHECKING REFRIGERANT CHARGE
Charge for all systems should be checked against the Charging Chart inside the
access corner panel or Charging by weight.
IMPORTANT:Do not operate the compressor without charge in system. Addition of
R-410A will raise pressures (suction, liquid and discharge).
8.1 CHARGING BY LIQUID PRESSURE
In order to properly charge the system, the following conditions must be met:
1) Outdoor temperature above 60°F.
2) Indoor temperature between 70°F to 100°F.
3) Installation must be complete with brazed joints and drier visually inspected.
4) The unit electrical installation must be checked and unit powered for one (I) hour if
crank case heater is used or five (5) minutes if no crankcase heater is used.
Follow these steps:
1. Run in cooling mode at least 20 minutes.
2. Measure OUTDOOR AMBIENT TEMPERATURE within 6 inches of coil.
3. Measure SUCTION LINE PRESSURE.
4. Find the TARGET LIQUID PRESSURE at the intersection between the SUCTION
LINE PRESSURE and the OUTDOOR AMBIENT TEMPERATURE, if falls between
rows or columns then estimate the TARGET LIQUID PRESSURE or SUCTION LINE
PRESSURE falls between rows or columns then estimate the TARGET LIQUID
PRESSURE between the rows and columns.
5. Compare the measured LIQUID LINE PRESSURE to the TARGET LIQUID
PRESSURE, add charge to raise the pressure or recover charge to lower it.
6. After running unit for 20 minutes if the SUCTION LINE PRESSURE changes, go
back to step 2 otherwise remove test equipment and cover the valves.
8.2 CHARGING BY WEIGHT
For a new installation,evacuation of interconnecting tubing and indoor coil is adequate;
otherwise,evacuate the entire system. The factory refrigerant charge in the outdoor
unit is sufficient for 15 feet of standard size interconnecting liquid line. Calculate
actual charge required with installed liquid line size and length,please see 4.1 of
instruction.
With an accurate scale (+/- 1 oz.) adjust charge difference between that shown on
the unit data plate and that calculated for the new system Installation. if the entire
system has been evacuated, add the total calculated charge.
8.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing refrigerant into the atmosphere.
17
9.0 WARRANTY
Assist owner with processing Warranty cards and/or online registration.
9.1 MAINTENANCE
1.. Dirt should not be allowed to accumulate on the indoor or outdoor coils or other parts
in the air circuit. Clean as often as necessary to keep the unit clean. Use a brush,
vacuum cleaner attachment, or other suitable means.
2. The outdoor fan motor is permanently lubricated and does not require periodic oiling.
3. Refer to the furnace or air handler instructions for filter and blower motor maintenance.
4. The indoor coil and drain pan should be inspected and cleaned regularly to assure
proper drainage.
CAUTION
It is unlawful to knowingly vent, release or discharge refrigerant into the open air
during repair, service, maintenance or the final disposal of this unit. When the
system is functioning properly and the owner has been fully instructed, secure the
owner’s approval.
10.0 WIRING DIAGRAM
CAUTION
These units must be wired and installed in accordance with all National and
Local Safety Codes.
18
10.1 CONTROL WIRING FOR A/C UNITS
PLUG PLATE
GROUND
L1
L2
BLACK
BLACK
LINE VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
POWER
RED
A2
BLACK
C
Y
HGS
YELLOW
YELLOW
GREEN
BLACK
BLACK
C
ORANGE
COMP
RC 1
FAN
R
S
BLACK
GREEN
BLACK
BROWN
RED
HGS
HOT GAS OR COMPRESSOR TOP SENSOR
CC
COMPRESSOR CONTACTOR
COMP COMPRESSOR
RC 1
RUN CAPACITOR 1
RC 2
RUN CAPACITOR 2
RC 3
RUN CAPACITOR 3
WARNING: CABINET MUST BE PERMANMENTLY
GOUNDED AND ALL WIRING TO CONFORM TO
I.E.C,N.E.C,C.E.C,C.L.C,AND LOCAL CODES AS APPLICABLE
REPLACEMENT WIRE MUST BE THE SAME GAUGE AND
INSULATION TYPE AS ORIGINAL WIRE
RC 2
WHITE OR YELLOW
TO THERMOSTAT
CC
A1
LOW VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
USE COPPER CONDUCTORS ONLY
BLACK
RC 3
Fig.12 Outdoor Unit Wiring Diagram for A/C Systems(208/230V 1P 60Hz).
THERMOSTAT
C
R
G
R
C
INDOOR UNIT
Y
BLACK
LACK
YELLO W
R ED
D
GREEN
N
G
BLACK
LACK
Y
C
OUTDOOR UNIT
Fig.13 Control Wiring for A/C Systems.
19
CC
CCH
COMP
DFC
T4
T3
HPC
LPC
OFM
RC 1
RC 2
RC 3
RV
GND
HGS
COMPRESSOR CONTACTOR
CRANKCASE HEATER
COMPRESSOR
DEFROST CONTROL
AMBIENT TEMPERATURE
PIPE TEMPERATURE
HIGHT PRESSURE CUT-OUT CONTROL
LOW PRESSURE CUT-OUT CONTROL
OUTDOOR FAN MOTOR
RUN CAPACITOR 1
RUN CAPACITOR 2
RUN CAPACITOR 3
REVERSING VALVE
GROUND CHASSIS
HOT GAS SENSOR
L1
L2
LINE VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
LOW VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
USE COPPER CONDUCTORS ONLY
WARNING :
CABINET MUST BE PERMANMENTLY
GROUNDED AND ALL WIRING TO CONFORM TO
I.E.C, N.E.C, C.E.C, C.L.C, AND LOCAL CODES AS
APPLICABLE REPLACEMENT WIRE MUST BE THE SAME
GAUGE AND INSULATION TYPE AS ORIGINAL WIRE.
0
MANUAL DEFRO ST
AUTOMATIC DEFROST
RES ERVED
NOR MAL DE FROST
DEF ROSTIN G CYCL E:30MIN
D EFROSTING CYCLE:60M IN
1
2
3
Fig.14 Outdoor Unit Wiring Diagram for H/P Systems(208/230V 1P 60Hz).
W2
B
C
R
Y
w1
INDOOR UNIT
R
C
PURPLE
BLUE
Y
B
OUTDOOR UNIT
Fig.15 Control Wiring for H/P Systems.
20
YELLOW
BLACK
C
RED
R
WHITE
BLACK
G
RED
THERMOSTAT
GREEN
G
D
POWER
10.2 CONTROL WIRING FOR H/P UNITS
ELECTRICAL DATA:
Model
18AC
24AC
30AC
36AC
42AC
Minimum Circuit Ampacity(A)
12.0
17.6
Maximum Circuit Protector(A)
18.7
21.9
24.1
20
30
30
35
40
48AC
60AC
29.0
28.0
50
45
18HP
24HP
30HP
36HP
42HP
11.9
17.5
18.7
21.9
24.1
20
30
30
35
40
48HP
60HP
29.0
34.7
50
60
NOTES: AC: Air Conditioner;
HP: Heat Pump
SEER
If Preinstalled Piston
Replace Required
M4CXC028BA1CAAA 051/(MAYTXVACHP1830AA)
14
YES
M4AC4018C1000AA M4CXC030BB1CAAA 051/(MAYTXVACHP1830AA)
14
YES
051/(MAYTXVACHP1830AA)
14
YES
M4CXC028BA1CAAA 058/(MAYTXVACHP1830AA)
14
YES
M4AC4024C1000AA M4CXC030BB1CAAA 058/(MAYTXVACHP1830AA)
Condensing Unit
Air Handle / A-Coil
M4AH4018A1000AA
Piston Size / TXV
Valve Model
14
YES
058/(MAYTXVACHP1830AA)
14
YES
M4CXC028BA1CAAA 064/(MAYTXVACHP1830AA)
14
NO
M4AC4030C1000AA M4CXC030BB1CAAA 064/(MAYTXVACHP1830AA)
14
YES
064/(MAYTXVACHP1830AA)
14
YES
M4CXC028BA1CAAA 069/(MAYTXVACHP1830AA)
14
YES
M4CXC030BB1CAAA 070/(MAYTXVACHP1830AA)
14
YES
M4CXC036BC1CAAA 071/(MAYTXVACHP1830AA)
14
YES
M4AH4036A1000AA
071/(MAYTXVACHP1830AA)
14
YES
M4CXC048AB1CAAA 077/(MAYTXVACHP3642AA)
14
YES
M4CXC049BC1CAAA 077/(MAYTXVACHP3642AA)
14
YES
M4CXC061BD1CAAA 077/(MAYTXVACHP3642AA)
14
YES
M4AH4044A1000AA
077/(MAYTXVACHP3642AA)
14
YES
M4CXC049BC1CAAA 082/(MAYTXVACHP3642AA)
14
YES
M4AC4048C1000AA M4CXC061BD1CAAA 082/(MAYTXVACHP3642AA)
14
YES
M4AH4025A1000AA
M4AH4032A1000AA
M4AC4036C1000AA
M4AC4042C1000AA
M4AH4048A1000AA
082/(MAYTXVACHP3642AA)
14
YES
M4CXC063AD1CAAA
MAYTXVACHP6060AA
14
YES
M4AH3060B1000AA
090/(MAYTXVACHP6060AA)
14
YES
M4AH4018A1000AA
M4AH4025A1000AA
M4AH4032A1000AA
M4AH4036A1000AA
M4AH4044A1000AA
MAYTXVACHP1830AA/(052)
057/(MAYTXVACHP1830AA)
063/(MAYTXVACHP1830AA)
MAYTXVACHP3642AA/(068)
080/(MAYTXVACHP3642AA)
14
14
14
14
NO
NO
NO
YES
M4HP4048A1000AA M4AH4048A1000AA
M4HP4060A1000AA M4AH3060B1000AA
MAYTXVACHP4848AA/(085)
MAYTXVACHP6060AA/(096)
14
14
14
NO
YES
YES
M4AC4060C1000AA
M4HP4018B1000AA
M4HP4024B1000AA
M4HP4030A1000AA
M4HP4036A1000AA
M4HP4042A1000AA
*The Piston/TXV in () means the recommended model for field installation.
21
REFRIGERANT CHARGE FOR AC SYSTEM
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
22
55
60
65
208
206
204
202
200
198
196
194
192
190
231
229
227
225
223
221
219
217
215
213
211
209
207
253
251
249
247
245
243
241
239
237
235
233
231
229
227
225
223
55
60
65
233
231
229
227
225
223
221
219
217
215
213
211
209
256
254
252
250
248
246
244
242
240
238
236
234
232
230
228
226
210
208
206
204
202
200
198
196
194
192
55
60
65
208
206
204
202
200
198
196
194
192
190
231
229
227
225
223
221
219
217
215
213
211
209
207
253
251
249
247
245
243
241
239
237
235
233
231
229
227
225
223
55
60
65
235
233
231
229
227
225
223
221
219
217
215
213
211
257
255
253
251
249
247
245
243
241
239
237
235
233
231
229
227
212
210
208
206
204
202
200
198
196
194
55
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
204
202
200
198
196
194
192
190
188
186
60
65
227
225
223
221
219
217
215
213
211
209
207
205
203
250
248
246
244
242
240
238
236
234
232
230
228
226
224
222
220
14 SEER R410A AC Charge Chart 1.5 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
274
296
317
336
354
373
272
294
315
334
352
371
270
292
313
332
350
369
268
290
311
330
348
367
266
288
309
328
346
365
264
286
307
326
344
363
262
284
305
324
342
361
260
282
303
322
340
359
258
280
301
320
338
357
256
278
299
318
336
355
254
276
297
316
334
353
252
274
295
314
332
351
250
272
293
312
330
349
248
270
291
310
328
347
246
268
289
308
326
345
244
266
287
306
324
343
14 SEER R410A AC Charge Chart 2 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
275
295
314
336
357
379
273
293
312
334
355
377
271
291
310
332
353
375
269
289
308
330
351
373
267
287
306
328
349
371
265
285
304
326
347
369
263
283
302
324
345
367
261
281
300
322
343
365
259
279
298
320
341
363
257
277
296
318
339
361
255
275
294
316
337
359
253
273
292
314
335
357
251
271
290
312
333
355
249
269
288
310
331
353
247
267
286
308
329
351
245
265
284
306
327
349
14 SEER R410A AC Charge Chart 2.5 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
273
292
312
334
355
377
271
290
310
332
353
375
269
288
308
330
351
373
267
286
306
328
349
371
265
284
304
326
347
369
263
282
302
324
345
367
261
280
300
322
343
365
259
278
298
320
341
363
257
276
296
318
339
361
255
274
294
316
337
359
253
272
292
314
335
357
251
270
290
312
333
355
249
268
288
310
331
353
247
266
286
308
329
351
245
264
284
306
327
349
243
262
282
304
325
347
100
105
110
115
400
398
396
394
392
390
388
386
384
382
380
378
376
374
372
370
428
426
424
422
420
418
416
414
412
410
408
406
404
402
400
398
455
453
451
449
447
445
443
441
439
437
435
433
431
429
427
425
482
480
478
476
474
472
470
468
466
464
462
460
458
456
454
452
100
105
110
115
405
403
401
399
397
395
393
391
389
387
385
383
381
379
377
375
431
429
427
425
423
421
419
417
415
413
411
409
407
405
403
401
457
455
453
451
449
447
445
443
441
439
437
435
433
431
429
427
483
481
479
477
475
473
471
469
467
465
463
461
459
457
455
453
100
105
110
115
404
402
400
398
396
394
392
390
388
386
384
382
380
378
376
374
431
429
427
425
423
421
419
417
415
413
411
409
407
405
403
401
457
455
453
451
449
447
445
443
441
439
437
435
433
431
429
427
484
482
480
478
476
474
472
470
468
466
464
462
460
458
456
454
14 SEER R410A AC Charge Chart 3 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
277
296
316
339
361
384
275
294
314
337
359
382
273
292
312
335
357
380
271
290
310
333
355
378
269
288
308
331
353
376
267
286
306
329
351
374
265
284
304
327
349
372
263
282
302
325
347
370
261
280
300
323
345
368
259
278
298
321
343
366
257
276
296
319
341
364
255
274
294
317
339
362
253
272
292
315
337
360
251
270
290
313
335
358
249
268
288
311
333
356
247
266
286
309
331
354
100
105
110
115
410
408
406
404
402
400
398
396
394
392
390
388
386
384
382
380
436
434
432
430
428
426
424
422
420
418
416
414
412
410
408
406
462
460
458
456
454
452
450
448
446
444
442
440
438
436
434
432
488
486
484
482
480
478
476
474
472
470
468
466
464
462
460
458
14 SEER R410A AC Charge Chart 3.5 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
269
288
307
329
351
373
267
286
305
327
349
371
265
284
303
325
347
369
263
282
301
323
345
367
261
280
299
321
343
365
259
278
297
319
341
363
257
276
295
317
339
361
255
274
293
315
337
359
253
272
291
313
335
357
251
270
289
311
333
355
249
268
287
309
331
353
247
266
285
307
329
351
245
264
283
305
327
349
243
262
281
303
325
347
241
260
279
301
323
345
239
258
277
299
321
343
100
105
110
115
400
398
396
394
392
390
388
386
384
382
380
378
376
374
372
370
426
424
422
420
418
416
414
412
410
408
406
404
402
400
398
396
453
451
449
447
445
443
441
439
437
435
433
431
429
427
425
423
479
477
475
473
471
469
467
465
463
461
459
457
455
453
451
449
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Large Service Valve(psig)
Suction Pressure at
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Large Service Valve(psig)
Suction Pressure at
Cooling
Mode
55
60
65
210
208
206
204
202
200
198
196
194
192
234
232
230
228
226
224
222
220
218
216
214
212
210
258
256
254
252
250
248
246
244
242
240
238
236
234
232
230
228
55
60
65
242
240
238
236
234
232
230
228
226
224
222
220
218
265
263
261
259
257
255
253
251
249
247
245
243
241
239
237
235
219
217
215
213
211
209
207
205
203
201
14 SEER R410A AC Charge Chart 4 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
277
297
316
339
361
384
275
295
314
337
359
382
273
293
312
335
357
380
271
291
310
333
355
378
269
289
308
331
353
376
267
287
306
329
351
374
265
285
304
327
349
372
263
283
302
325
347
370
261
281
300
323
345
368
259
279
298
321
343
366
257
277
296
319
341
364
255
275
294
317
339
362
253
273
292
315
337
360
251
271
290
313
335
358
249
269
288
311
333
356
247
267
286
309
331
354
14 SEER R410A AC Charge Chart 5 TON
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
285
305
325
348
372
395
283
303
323
346
370
393
281
301
321
344
368
391
279
299
319
342
366
389
277
297
317
340
364
387
275
295
315
338
362
385
273
293
313
336
360
383
271
291
311
334
358
381
269
289
309
332
356
379
267
287
307
330
354
377
265
285
305
328
352
375
263
283
303
326
350
373
261
281
301
324
348
371
259
279
299
322
346
369
257
277
297
320
344
367
255
275
295
318
342
365
100
105
110
115
411
409
407
405
403
401
399
397
395
393
391
389
387
385
383
381
438
436
434
432
430
428
426
424
422
420
418
416
414
412
410
408
465
463
461
459
457
455
453
451
449
447
445
443
441
439
437
435
492
490
488
486
484
482
480
478
476
474
472
470
468
466
464
462
100
105
110
115
423
421
419
417
415
413
411
409
407
405
403
401
399
397
395
393
450
448
446
444
442
440
438
436
434
432
430
428
426
424
422
420
478
476
474
472
470
468
466
464
462
460
458
456
454
452
450
448
505
503
501
499
497
495
493
491
489
487
485
483
481
479
477
475
REFRIGERANT CHARGE FOR HP SYSTEM.
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
55
196
194
192
190
188
186
184
182
180
178
55
218
216
214
212
210
208
206
204
202
200
60
224
222
220
218
216
214
212
210
208
206
204
202
200
14 SEER R410A HP Charge Chart 1.5 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
65
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
251
272
294
315
334
352
371
249
270
292
313
332
350
369
247
268
290
311
330
348
367
245
266
288
309
328
346
365
243
264
286
307
326
344
363
241
262
284
305
324
342
361
239
260
282
303
322
340
359
237
258
280
301
320
338
357
235
256
278
299
318
336
355
233
254
276
297
316
334
353
231
252
274
295
314
332
351
229
250
272
293
312
330
349
227
248
270
291
310
328
347
225
246
268
289
308
326
345
223
244
266
287
306
324
343
221
242
264
285
304
322
341
60
65
244
242
240
238
236
234
232
230
228
226
224
222
220
271
269
267
265
263
261
259
257
255
253
251
249
247
245
243
241
100
105
110
115
398
396
394
392
390
388
386
384
382
380
378
376
374
372
370
368
426
424
422
420
418
416
414
412
410
408
406
404
402
400
398
396
453
451
449
447
445
443
441
439
437
435
433
431
429
427
425
423
480
478
476
474
472
470
468
466
464
462
460
458
456
454
452
450
105
110
115
439
437
435
433
431
429
427
425
423
421
419
417
415
413
411
409
464
462
460
458
456
454
452
450
448
446
444
442
440
438
436
434
489
487
485
483
481
479
477
475
473
471
469
467
465
463
461
459
14 SEER R410A HP Charge Chart 2 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
100
Liquid Pressure at Small Service Valve(psig)
292
312
333
351
370
388
413
290
310
331
349
368
386
411
288
308
329
347
366
384
409
286
306
327
345
364
382
407
284
304
325
343
362
380
405
282
302
323
341
360
378
403
280
300
321
339
358
376
401
278
298
319
337
356
374
399
276
296
317
335
354
372
397
274
294
315
333
352
370
395
272
292
313
331
350
368
393
270
290
311
329
348
366
391
268
288
309
327
346
364
389
266
286
307
325
344
362
387
264
284
305
323
342
360
385
262
282
303
321
340
358
383
23
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Suction Pressure at
Large Service Valve(psig)
Cooling
Mode
Suction Pressure at
Large Service Valve(psig)
60
65
215
213
211
209
207
205
203
201
199
197
240
238
236
234
232
230
228
226
224
222
220
218
216
265
263
261
259
257
255
253
251
249
247
245
243
241
239
237
235
55
60
213
211
209
207
205
203
201
199
197
195
55
214
212
210
208
206
204
202
200
198
196
55
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Cooling
Mode
24
55
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
207
205
203
200
197
195
192
190
188
185
55
239
227
213
203
202
201
200
197
195
190
240
238
236
234
232
230
228
226
224
222
220
218
216
14 SEER R410A HP Charge Chart 3 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
267
288
309
330
351
371
392
265
286
307
328
349
369
390
263
284
305
326
347
367
388
261
282
303
324
345
365
386
259
280
301
322
343
363
384
257
278
299
320
341
361
382
255
276
297
318
339
359
380
253
274
295
316
337
357
378
251
272
293
314
335
355
376
249
270
291
312
333
353
374
247
268
289
310
331
351
372
245
266
287
308
329
349
370
243
264
285
306
327
347
368
241
262
283
304
325
345
366
239
260
281
302
323
343
364
237
258
279
300
321
341
362
65
60
65
239
237
235
233
231
229
227
225
223
221
219
217
215
264
262
260
258
256
254
252
250
248
246
244
242
240
238
236
234
60
230
228
226
224
222
220
218
215
213
209
207
205
202
14 SEER R410A HP Charge Chart 2.5 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
100
Liquid Pressure at Small Service Valve(psig)
284
303
322
341
359
378
402
282
301
320
339
357
376
400
280
299
318
337
355
374
398
278
297
316
335
353
372
396
276
295
314
333
351
370
394
274
293
312
331
349
368
392
272
291
310
329
347
366
390
270
289
308
327
345
364
388
268
287
306
325
343
362
386
266
285
304
323
341
360
384
264
283
302
321
339
358
382
262
281
300
319
337
356
380
260
279
298
317
335
354
378
258
277
296
315
333
352
376
256
275
294
313
331
350
374
254
273
292
311
329
348
372
60
65
279
270
261
250
237
228
220
218
217
216
214
211
207
310
316
322
290
280
271
261
248
243
237
234
232
232
230
227
225
14 SEER R410A HP Charge Chart 5 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
329
333
337
341
352
374
321
326
330
335
347
369
310
316
323
329
343
366
299
308
318
327
340
363
288
299
311
322
336
360
280
294
308
322
334
357
272
287
302
317
331
355
259
277
296
315
330
354
257
276
295
314
328
352
254
273
293
313
327
351
250
271
291
312
326
350
248
269
289
309
323
347
248
268
289
309
322
345
247
270
293
316
324
343
243
263
283
304
316
337
242
262
282
302
313
334
110
115
427
425
423
421
419
417
415
413
411
409
407
405
403
401
399
397
451
449
447
445
443
441
439
437
435
433
431
429
427
425
423
421
475
473
471
469
467
465
463
461
459
457
455
453
451
449
447
445
100
105
110
115
418
416
414
412
410
408
406
404
402
400
398
396
394
392
390
388
445
443
441
439
437
435
433
431
429
427
425
423
421
419
417
415
471
469
467
465
463
461
459
457
455
453
451
449
447
445
443
441
497
495
493
491
489
487
485
483
481
479
477
475
473
471
469
467
105
110
115
433
431
429
427
425
423
421
419
417
415
413
411
409
407
405
403
461
459
457
455
453
451
449
447
445
443
441
439
437
435
433
431
488
486
484
482
480
478
476
474
472
470
468
466
464
462
460
458
14 SEER R410A HP Charge Chart 3.5 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
70
75
80
85
90
95
100
Liquid Pressure at Small Service Valve(psig)
283
302
321
340
359
378
406
281
300
319
338
357
376
404
279
298
317
336
355
374
402
277
296
315
334
353
372
400
275
294
313
332
351
370
398
273
292
311
330
349
368
396
271
290
309
328
347
366
394
269
288
307
326
345
364
392
267
286
305
324
343
362
390
265
284
303
322
341
360
388
263
282
301
320
339
358
386
261
280
299
318
337
356
384
259
278
297
316
335
354
382
257
276
295
314
333
352
380
255
274
293
312
331
350
378
253
272
291
310
329
348
376
14 SEER R410A HP Charge Chart 4 TON (Cooling mode)
Outdoor Ambient Temperature(℉)
65
70
75
80
85
90
95
Liquid Pressure at Small Service Valve(psig)
253
270
287
304
327
350
373
251
268
285
302
325
348
371
249
266
283
300
323
346
369
247
264
281
298
321
344
367
245
262
279
296
319
342
365
243
260
277
294
317
339
363
241
258
275
292
315
337
360
239
256
273
290
313
335
358
237
254
271
288
311
333
355
235
251
268
285
309
330
352
232
248
265
283
307
328
348
229
245
263
281
305
325
346
226
243
260
279
303
323
343
223
241
257
277
301
321
341
221
238
255
275
299
319
339
219
236
253
273
297
317
337
105
100
105
110
115
401
399
397
395
393
390
387
385
382
378
374
371
368
366
364
362
429
427
425
423
421
418
415
412
409
405
401
397
393
391
389
387
459
457
455
453
450
447
443
439
436
431
426
422
418
416
414
412
486
483
480
478
476
473
470
467
464
458
452
446
442
438
435
433
100
105
110
115
395
390
389
386
383
379
379
379
376
376
374
371
368
362
359
355
418
413
413
410
408
404
404
403
400
398
397
392
390
383
380
376
440
436
436
434
432
429
428
427
425
421
420
414
413
405
401
397
473
469
470
468
467
464
463
461
459
454
452
446
445
436
431
427
TABLE 4. Troubleshooting
EF.
RD
SO
F.
SEN R DE
GS
SO
F.
E
EN
C/H
H P P. S SOR D .
N
EF
EM
T3 T P. SE ROL D .
T EM C O N T DEF
T4
T
OR
S
S
RO
EN A K I N G
D E F L PC S
LE VE
I
VE
VAL EFECT
CK
D
NG
CHE COIL LEAKI
S
SOV SOV CTION
T R I L OW
F
RES
IR. .D. AIR EAT
.C
I
R E F E S.
ERH
R
SUP OPEN
CK
N
STU ATIO
TXV RCUL W
ECI IRFLO
A
RR
S
.
D
.
. AI
BLE
O.D RES. O ENSA D
ND
L OA
NCO AP.
NO E EV ARGE
H
IV
ESS
ERC GE
EXC EF. OV CHAR .
R
P
R
NDE T COM
.U
REF FICIEN SSOR
E
F
R
INE
SE
MP
CO E FU
CK
IL
AG
STU VOLT R CO
O
LOW TACT STAT
O
N
RM
CO
R
THE ORME
NSF ING
TRA WIR
OL
G E AC T S
NTR
LTA
CO W VO CONT OR
R
LO
CIT
CTO PA
NTA ER CA CITOR
CO
W
PA
A
R
BLO
ITO
NC
I.D.
. FA CAPAC EF.
O.D
D
SSR ROL
PRE ONT IRING
COM . C
W
D
.
I
AGE UPPLY
OLT
S
E
H V ER
H I G P OW K M O D
C
CHE
TO
AT
WH
SYSTEM FAULTS
REFRIGERANT CIRCUIT
Head Pressure Too High
Head Pressure Too Low
Suction Pressure Too High
Suction Pressure Too Low
Liquid Refrig. Floodback
(TXV)
I.D. Coil Frosting
Compressor Runs Inadequate or
No Cooling/Heating
P P S P S
P P S
C
H
C
H
C
H
C
H
C
H
C
H
C
H
S P
S P
P P
S
S
P
P
P
S P
S P
S
P S
S S
S S
S S
S S S
S
P
P
S
S P S
S S
S
S
S
P
P
S S
S S
S
P
P
P
P
P
S
S P S S
S P S S S S
ELECTRICAL
C
H
C
Compressor Will Not Start But
O.D. Fan Runs
H
C
O.D. Fan Won’t Start
H
C
Compressor Hums But Won’t Start
H
C
I.D. Blower Won’t Start
H
DEFROST
C
Unit Won’t Initiate Defrost
H
C
Defrost Terminates on Time
H
C
Unit Icing Up
H
Compressor & O.D. Fan Won’t Start
P P
P P
P
P
P
P
S
P
P
P
S
S S
P
P
S S S
S
P
P
S
S
P
P
P P S
P P S
S P S P P
P
S P S
P
P
S
S
P
P
S P S
S P S
S
S
P
P
P
S S
S
P
P
S
P
S
P
C- Cooling H - Heating P - Primary Causes S - Secondary Causes
TABLE 5. Operational And Checkout Procedures
Final phases of this installation are the unit Operational and Checkout Procedures. To obtain proper performance,
all units must be operated and charge adjustments made in accordance with procedures found in the Service Facts
of the Outdoor Unit.
After installation has been completed, it is recommended that the entire system be checked against the following list:
1. Be sure unit suspension(if used) is secure and that
thereare no tools or loose debris in or around or on
top of the unit...................................................... [ ]
2. Properly insulate suction lines and fittings. ......... [ ]
3. Properly secure and isolate all refrigerant lines... [ ]
4. Verify that all electrical connections are tight. ..... [ ]
5.Check all duct outlets; they must be open and unrestricted. [ ]
6.Check drain lines and be sure all joints are tight............... [ ]
7.Be sure that a return air filter is installed. .......................... [ ]
8.Operate complete system in each mode to verify proper
performance. Verify operation of supplementary electric
heater. ............................................................................... [ ]
Base Limited Warranty
Single Phase R-410A Outdoor Units, Single Phase R-22 Outdoor Units, Air Handlers,
Subject to the terms and conditions of this limited warranty, Ingersoll Rand (“Company’) extends a limited warranty against manufacturing defects for the product(s)
Table 1 attached hereto (“Products’) that are installed in a residential/multi-family application (personal, family or household purposes) under normal use and
maintenance in the United States and Canada.
. All repairs of Product parts
covered under this limited warranty must be made with authorized service parts and by a licensed HVAC service provider. Additionally, commercial applications are treated
differently under this limited warranty as stated in Table 1 attached hereto. For purposes of this limited warranty, “commercial applications” shall mean any application
other than for personal, family, or household use.
TERM: The limited warranty period for Products is as stated in Table 1 attached hereto. If the Purchaser properly registers the Products, the limited warranty period
shall be extended as stated in Table 1 attached hereto. Regardless of registration, the Commencement Date for a limited warranty period shall be the date that the original
’s invoice. If the installation and start-up date cannot
Where a Product is installed in a newly constructed home, the Commencement Date is the date the Purchaser purchased the residence from the builder. Proof of Product
The installation of Product replacement parts under this limited warranty shall not extend the original warranty period. The warranty period for any Product part
replaced under this limited warranty is the applicable warranty period remaining under the original Product warranty.
WHO IS COVERED: This limited warranty is provided only to the original owner and his or her spouse (“Purchaser’) of the residence where the Products are originally
the right to request any and all proof of Product purchase or installation and/or closing date of the residence.
WHAT COMPANY WILL DO: Company may request proof of Product purchase and/or installation in order to provide Product parts under this limited warranty. As
Company’s only responsibility and Purchaser’s only remedy under this limited warranty, Company will furnish a replacement part to the licensed HVAC service provider,
without charge for the part only, to replace any Product part that fails due to a manufacturing defect under normal use and maintenance. The Purchaser must pay for any
and all shipping and handling charges and other costs of warranty service for the replacement part. If a Product part is not available, Company will, at its option, provide
a free suitable substitute part or provide a credit in the amount of the then factory selling price for a new suitable substitute part to be used by the Purchaser towards the
retail purchase price of a new Company product. Any new Product purchase shall be at Purchaser’s sole cost and expense including, but not limited to, all shipping,
removal, and installation costs and expenses.
REGISTRATION REQUIREMENTS: All Products must be properly registered online by the Purchaser within sixty (60) days after the Commencement Date to receive
the registered limited warranty terms. To register online, go to:
http://www.ameristarac.com
and click “Begin Online Registration.” If a Purchaser does not register within this stated time period, the base limited warranty terms shall apply.
ELIGIBILITY REQUIREMENTS: The following items are required in order for the Products to be covered under this limited warranty:
• The Products must be in the same location where they were originally installed.
• The Products must be properly installed, operated, and maintained by a licensed HV
warranty. Company may request written documentation showing the proper preventative maintenance.
• All Product parts replaced by Company under this limited warranty must be given to the servicing provider for return to Company.
• Air handlers, air conditioners, heat pumps, cased or uncased coils, stand-alone furnaces, and packaged units must be part of an Air Conditioning, Heating, and
representative.
EXCLUSIONS: The following are not covered by this limited warranty:
• Labor costs including, but not limited to, costs for diagnostic calls or the removal and reinstallation of Products and/or Product parts.
• Shipping and freight expenses required to ship Product replacement parts.
• Failures, defects, or damage (including, but not limited to, any loss of data or property) caused by (1) any third party product, service, or system connected or used
water, storms, lightning, or earthquakes; or any theft or riots; or (7) a corrosive atmosphere or contact with corrosive materials such as, but not limited to, chlorine,
• Products purchased direct including, but not limited to, Internet or auction purchases and purchases made on an uninstalled basis.
•
factory installed driers, and Product accessories.
• Increased utility usage costs.
REFRIGERANT POLICY: Beginning on January 1, 2010, R-22 refrigerant will no longer be used as a manufacturer-installed refrigerant as required by federal regulation. Any and all expenses or costs associated with replacing Product parts that are not R-410A compatible will not be covered by the terms and conditions of this limited
refrigerant or any non-approved refrigerant system additives including, but not limited to, dyes, will void this limited warranty.
ADDITIONAL TERMS:
THIS LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES, WHETHER IN CONTRACT
OR IN NEGLIGENCE, EXPRESS OR IMPLIED, IN LAW OR IN FACT. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE LIMITED TO THE DURATION OF THE APPLICABLE PRODUCT WARRANTY. COMPANY DOES NOT AUTHORIZE ANY PERSON TO CREATE FOR
IT ANY OBLIGATION OR LIABILITY IN CONNECTION WITH THE PRODUCTS.
NOTWITHSTANDING ANYTHING IN THIS LIMITED WARRANTY TO THE CONTRARY, COMPANY SHALL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL AND/OR PUNITIVE DAMAGES, WHETHER BASED ON CONTRACT, WARRANTY, TORT (INCLUDING, BUT NOT LIMITED TO,
STRICT LIABILITY OR NEGLIGENCE), PATENT INFRINGEMENT, OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. COMPANY’S
MAXIMUM LIABILITY HEREUNDER IS LIMITED TO THE ORIGINAL PURCHASE PRICE OF THE PRODUCTS.
No action arising out of any claimed breach of this limited warranty may be brought by a Purchaser more than one (1) year after the cause of action has arisen.
. If this Product is considered a consumer
product, please be advised that some local laws do not allow limitations on incidental or consequential damages, how long a warranty lasts based on registration, or how
long an implied warranty lasts, so that the above limitations may not fully apply
. If you have any
questions regarding this limited warranty, please contact your original installation dealer, or any participating dealer, should your original installation dealer no longer be
available.
GW-659-3514
TABLE 1: Warranty Time Periods
COVERAGE TERMS FOR RESIDENTIAL APPLICATIONS: Pursuant to the Ingersoll Rand (“Company”) limited warranty terms and conditions, the following Products are covered for the base time periods as stated below
(“Base Limited Warranty Period’). If registered, the Base Limited Warranty Periods for certain Products will be
extended as stated below (“Registered Limited Warranty Period”).
FURNACES:
M801P, M951P, M952V
Registered Limited Warranty Period: Parts – ten (10) years, Heat Exchanger: twenty (20) years.
AIR HANDLERS:
M4AH3, M4AH4
Registered Limited Warranty Period: Indoor Coil and Parts – ten (10) years.
ELECTRIC HEATERS, installed in M4A3/4 AIR HANDLERS:
MAYHTR1A
Registered Limited Warranty Period: Parts – ten (10) years.
SINGLE PHASE R410 OUTDOOR UNITS:
M4AC3 (M4AC3018, 24, 30, 36, 42, 48, 60 only), M4HP3, M4AC4, M4HP4
Registered Limited Warranty Period: Compressor, Outdoor Coil, Parts – ten (10) years.
SINGLE PHASE R410 OUTDOOR UNITS:
M4AC3 (M4AC3017, 23, 29 only)
Base Limited Warranty Period: Compressor, Outdoor Coil, Parts: one (1) year.
SINGLE PHASE R22 OUTDOOR UNITS:
M2AC3, M2HP3
Base Limited Warranty Period: Compressor, Outdoor Coil, Parts - one (1) year.
CASED COILS:
M4CXC
Registered Limited Warranty Period: Coil and Parts – ten (10) years.
PACKAGED UNITS:
M4PH3, M4PG3
Registered Limited Warranty Period: Compressor, Coil, Parts – ten (10) years, Heat Exchanger – ten (10) years.
SPECIFIC TERMS FOR COMMERCIAL APPLICATIONS
Base Limited Warranty Period Applies
© 2014 Ingersoll Rand
GW-659-3514
TR-MD14U-035AW
2020001C0543 V1.0
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