Installation and
Operation Manual
H J HRE1318/1360-1A
Split System
Heat Pump Systems
▲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.
13 SEER 11/2TO 5 TON HEAT PUMPS
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 FOL-
LOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER
INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE
POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK,
PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A SERVICEMAN
DO NOT DESTROY THIS MANUAL
TABLE OF CONTENTS
1.0 SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.0 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Checking Product Received. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Electrical and Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 LOCATING UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Corrosive Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Heat Pump Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Operational Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 For Units With Space Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 Customer Satisfaction Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.6 Unit Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.7 Factory-Prepferred Tie-Down Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 REFRIGERANT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.0 REPLACEMENT UNITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.0 INDOOR COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.0 INTERCONNECTING TUBING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1 Vapor & Liquid Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.2 Maximum Length of Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.3 Outdoor Unit Installed Above Indoor Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.4 Outdoor Unit Installed Below Indoor Coil . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.5 Tubing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.6 Tubing Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.7 Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.0 DEMAND DEFROST CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1 Defrost Initiation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.2 Defrost Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.3 Temperature Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.4 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.5 Demand Defrost Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.6 Trouble Shooting Demand Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9.0 EVACUATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10.0 START UP & PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11.0 CHECKING AIRFLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
12.0 CHECKING REFRIGERANT CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
12.1 Charging By Liquid Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
12.2 Charging By Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
12.3 Final Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.0 ELECTRICAL WIRING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.1 Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.3 Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
14.0 FIELD INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
14.1 Compressor Crankcase Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
14.2 Low Ambient Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
14.3 High Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
15.0 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
15.1 Single Pole Compressor Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
16.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
16.1 Electrical Checks Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
16.2 Cooling Mechanical Checks Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
16.3 Heating Mechanical Checks Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
16.4 Defrost Mechanical Checks Flow Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
16.5 General Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
16.6 Service Analyzer Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
17.0 WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2
3
1.0 SAFETY INFORMATION
!
WARNING
The manufacturer’s warranty does not cover any damage or defect to the
heat pump caused by the attachment or use of any components.
Accessories or devices (other than those authorized by the manufacturer) into, onto or in conjunction with the heat pump. You should be aware
that the use of unauthorized components, accessories or devices may
adversely affect the operation of the heat pump and may also endanger
life and property. The manufacturer disclaims any responsibility for such
loss or injury resulting from the use of such unauthorized components,
accessories or devices.
!
WARNING
Disconnect all power to unit before starting maintenance. Failure to do so
can cause electrical shock resulting in severe personal injury or death.
CAUTION
When coil is installed over a finished ceiling and/or living area, it is
recommended that a secondary sheet metal condensate pan be
constructed and installed under entire unit. Failure to do so can result
in property damage.
!
WARNING
The unit must be permanently grounded. Failure to do so can cause electrical shock resulting in severe personal injury or death.
CAUTION
Single-pole contactors are used on all standard single-phase units up
through 5 tons. Caution must be exercised when servicing as only one leg
of the power supply is broken with the contactor.
!
WARNING
Turn off electric power at the fuse box or service panel before making any
electrical connections.
Also, the ground connection must be completed before making line voltage connections. Failure to do so can result in electrical shock, severe
personal injury or death.
!
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.
2.0 GENERAL
2.1 CHECKING PRODUCT RECEIVED
Upon receiving unit, inspect it for any shipping damage. Claims for damage, either
apparent or concealed, should be filed immediately with the shipping company.
Check heat pump model number, electrical characteristics and accessories to
determine if they are correct. Check system components (evaporator coil, condensing unit, evaporator blower, etc.) to make sure they are properly matched.The information contained in this manual has been prepared to assist in the proper installation, operation and maintenance of the heat pump system. Improper installation, or
installation not made in accordance with these instructions, can result in unsatisfactory operation and/or dangerous conditions, and can cause the related warranty not
to apply.
Read this manual and any instructions packaged with separate equipment required
to make up the system prior to installation. Retain this manual for future reference.
To achieve optimum efficiency and capacity, the indoor cooling coils listed in the
heat pump specification sheet should be used.
2.2 APPLICATION
Before installing any heat pump equipment, a duct analysis of the structure and a
heat gain calculation must be made. A heat gain calculation begins by measuring all
external surfaces and openings that gain heat from the surrounding air and quantifying that heat gain. A heat gain calculation also calculates the extra heat load
caused by sunlight and by humidity removal.
There are several factors that the installers must consider:
• Outdoor unit location • Proper equipment evacuation
• System refrigerant charge • Indoor unit airflow
• Indoor unit blower speed • Supply and return air duct design and sizing
• System air balancing • Diffuser and return air grille location and sizing
!
WARNING
The manufacturer’s warranty does not cover any damage or defect to the
heat pump caused by the attachment or use of any components.
Accessories or devices (other than those authorized by the manufacturer) into, onto or in conjunction with the heat pump. You should be aware
that the use of unauthorized components, accessories or devices may
adversely affect the operation of the heat pump and may also endanger
life and property. The manufacturer disclaims any responsibility for such
loss or injury resulting from the use of such unauthorized components,
accessories or devices.
MATCH ALL COMPONENTS:
• OUTDOOR UNIT
• INDOOR COIL/METERING DEVICE
• INDOOR AIR HANDLER/FURNACE
• REFRIGERANT LINES
4
5
Height “H” (in.) [mm]
DIMENSIONAL DATA
SERVICE ACCESS
ALLOW 24” CLEARANCE
AIR INLETS
(LOUVERED
PANELS)
ALLOW 6”
MINIMUM
CLEARANCE
18
261/8 [663.5]
Length “L” (in.) [mm]
235/8 [600]
Width “W” (in.) [mm]
235/8 [600]
BASE PAN (BOTTOM VIEW)
DO NOT OBSTRUCT DRAIN HOLES
(SHADED).
2"
13 SEER
Cooling Capacity
24 30
36, 42,
48, 60
265/8 [676.2] 2715/
16
[709.6] 3515/
16
[912.8]
275/8 [701.6] 315/8 [803.2] 315/8 [803.2]
275/8 [701.6]
315/8 [803.2] 315/8 [803.2]
FIGURE 1
DIMENSIONS
2.3 DIMENSIONS (SEE FIGURE 1)
AIR DISCHARGE: ALLOW
60” MINIMUM CLEARANCE.
A-00008
w
L
H
SEE DETAIL A
6
3.0 LOCATING UNIT
3.1 CORROSIVE ENVIRONMENT
The metal parts of this unit may be subject to rust or deterioration if exposed to a
corrosive environment. This oxidation could shorten the equipment’s useful life.
Corrosive elements include, but are not limited to, salt spray, fog or mist in seacoast
areas, sulphur or chlorine from lawn watering systems, and various chemical contaminants from industries such as paper mills and petroleum refineries.
If the unit is to be installed in an area where contaminants are likely to be a problem, special attention should be given to the equipment location and exposure.
• Avoid having lawn sprinkler heads spray directly on the unit cabinet.
• In coastal areas, locate the unit on the side of the building away from the waterfront.
• Shielding provided by a fence or shrubs may give some protection, but cannot
violate minimum airflow and service access clearances.
• Elevating the unit off its slab or base enough to allow air circulation will help
avoid holding water against the basepan.
Regular maintenance will reduce the build-up of contaminants and help to protect
the unit’s finish.
• Frequent washing of the cabinet, fan blade and coil with fresh water will remove
most of the salt or other contaminants that build up on the unit.
• Regular cleaning and waxing of the cabinet with an automobile polish will provide some protection.
• A liquid cleaner may be used several times a year to remove matter that will not
wash off with water.
Several different types of protective coil coatings are offered in some areas. These
coatings may provide some benefit, but the effectiveness of such coating materials
cannot be verified by the equipment manufacturer.
TABLE 1
ELECTRICAL AND PHYSICAL DATA
13 SEER
Cooling
Capacity
Phase
Frequency (Hz)
Voltage (Volts)
Rated Load
Amperes
(RLA)
Locked Rotor
Amperes
(LRA)
Fan Motor
Full Load
Amperes
(FLA)
Minimum
Circuit
Ampacity
Amperes
Minimum
Amperes
Maximum
Amperes
Face Area
Sq. Ft.
[m2] ➀
No.
Rows
CFM
[L/s]
R-22 ➁
Circuit
Oz. [g]
Net
Lbs. [kg]
Shipping
Lbs. [kg]
Fuse or HACR
Circuit Breaker
Outdoor Coil WeightCompressor
ELECTRICAL DATA PHYSICAL DATA
18 1-60-208-230 6.5/6.5 36 0.6 9/9 15/15 15/15 11.06 1 1700 81 160 168
[1.03] [802] [2296] [72.6] [76.2]
24 1-60-208-230 9.9/9.9 54 0.8 14/14 20/20 20/20 13.72 1 2370 99 177 187
[1.27] [1118] [2807] [80.3] [84.8]
30 1-60-208-230 11.5/11.5 61 0.8 16/16 20/20 25/25 16.39 1 2800 115 200 212
[1.52] [1321] [3260] [90.7] [96.2]
36 1-60-208-230 17.3/17.3 78 1.2 23/23 30/30 40/40 21.85 1 3575 134 225 237
[2.03] [1687] [3799] [102.1] [107.5]
42 1-60-208-230 19.2/19.2 105 1.2 26/26 35/35 40/40 21.85 1 3575 150 230 242
[2.03] [1687] [4252] [104.3] [109.8]
48 1-60-208-230 26.1/26.1 115 1.2 34/34 45/45 50/50 21.85 1 3575 154 235 247
[2.03] [1687] [4366] [106.6] [112]
60 1-60-208-230 25/25 150 1.2 33/33 40/40 50/50 21.85 2 3365 256 283 295
[2.03] [1588] [7258] [128.4] [133.8]
NOTES:
➀ 20 Fins per inch
➁ Factory charged for 15 ft. of line set
2.4 ELECTRICAL & PHYSICAL DATA (SEE TABLE 1)
!
WARNING
Disconnect all power to unit before starting maintenance. Failure to do so
can cause electrical shock resulting in severe personal injury or death.
7
3.2 HEAT PUMP LOCATION
Consult local and national building codes and ordinances for special installation
requirements. Following location information will provide longer life and simplified
servicing of the outdoor heat pump.
NOTE: These units must be installed outdoors. No ductwork can be attached, or
other modifications made, to the discharge grille. Modifications will affect performance or operation.
3.3 OPERATIONAL ISSUES
• IMPORTANT: Locate the unit in a manner that will not prevent, impair or compromise the performance of other equipment horizontally installed in proximity
to the unit. Maintain all required minimum distances to gas and electric meters,
dryer vents, exhaust and inlet openings. In the absence of National Codes, or
manaufacturers’ recommendations, local code recommendations and requirements will take presidence.
• Refrigerant piping and wiring should be properly sized and kept as short as
possible to avoid capacity losses and increased operating costs.
• Locate the unit where water run off will not create a problem with the equipment. Position the unit away from the drip edge of the roof whenever possible.
Units are weatherized, but can be affected by the following:
o Water pouring into the unit from the junction of rooflines, without protective
guttering. Large volumes of water entering the heat pump while in operation
can impact fan blade or motor life, and coil damage may occur to a heat
pump if moisture cannot drain from the unit under freezing conditions.
o Freezing moisture, or sleeting conditions, can cause the cabinet to ice-over
prematurely and prevent heat pump operation, requiring backup heat, which
generally results in less economical operation.
• Closely follow clearance recommendations (See Figure 1).
o 24” to the service panel access
o 60” above heat pump fan discharge (unit top) to prevent recirculation
o 6” to heat pump coil grille air inlets (per heat pump).
3.4 FOR UNITS WITH SPACE LIMITATIONS
In the event that a space limitation exists, we will permit the following clearances:
Single Unit Applications: Clearances below 6 inches will reduce unit capacity and
efficiency. Do not reduce the 60-inch discharge, or the 24-inch service clearances.
Multiple Unit Applications: When multiple heat pump grille sides are aligned, a 6inch per unit clearance is recommended, for a total of 12" between two units. Two
combined clearances below 12 inches will reduce capacity and efficiency. Do not
reduce the 60-inch discharge, or 24-inch service, clearances.
• Do not obstruct the bottom drain opening in the heat pump base pan. It is
essential to provide defrost condensate drainage to prevent possible refreezing
of the condensation. Provide a base pad for mounting the unit, which is slightly
pitched away from the structure. Route condensate off the base pad to an area
which will not become slippery and result in personal injury.
• Where snowfall is anticipated, the heat pump must be elevated above the base
pad to prevent ice buildup that may crush the tubing of the heat pump coil or
cause fin damage. Heat pump units should be mounted above the average
expected accumulated snowfall for the area.
3.5 CUSTOMER SATISFACTION ISSUES
• The heat pump should be located away from the living, sleeping and recreational spaces of the owner and those spaces on adjoining property.
• To prevent noise transmission, the mounting pad for the outdoor unit should
not be connected to the structure, and should be located sufficient distance
above grade to prevent ground water from entering the unit.
8
3.6 UNIT MOUNTING
If elevating the heat pump, either on a flat roof or on a slab, observe the
following guidelines.
• The base pan provided elevates the heat pump 2” above the base pad.
• If elevating a unit on a flat roof, use 4” x 4” (or equivalent) stringers positioned
to distribute unit weight evenly and prevent noise and vibration (see Figure 2).
NOTE: Do not block drain openings shown in Figure 1.
• 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. Keep in mind
that someone may try to climb on unit.
3.7 FACTORY-PREFERRED TIE-DOWN METHOD
INSTRUCTIONS:
IMPORTANT: These instructions are intended as a guide to securing equipment for windload ratings of “120 MPH sustained wind load” and “3-second, 150 MPH gust.” While this
procedure is not mandatory, the Manufacturer does recommend that equipment be properly secured in areas where high wind damage may occur.
STEP 1: Before installing, clear pad of any dirt or debris.
IMPORTANT: The pad must be constructed of industry-approved materials, and
must be thick enough to accommodate the concrete fastener.
STEP 2: Center basepan on pad, ensuring it is level.
STEP 3: Using metal straps as guides, mark spots on concrete where 4 holes will be
drilled (see Figure 1).
STEP 4: Drill four pilot holes in pad, ensuring that the hole is at least 1/4” deeper than the
concrete fastener being used.
FIGURE 2
RECOMMENDED ELEVATED INSTALLATION
REQUIRED PARTS LIST
NOTE: ALL PARTS AVAILABLE THROUGH LOCAL HARDWARE SUPPLY
STORES
DESCRIPTION QUANTITY
1/4” x 2” Hex Washer Head Concrete Screws 4
1/8” x 1 1/2” x W (width of unit + 4”) Metal straps 2
3/8” Washers 28
9
STEP 5: Gauge the amount of washers needed by stacking washers and metal strap in
place, as shown in Figure 3, Detail A. Typical installation requires 6 to 7 washers.
STEP 6: Insert concrete fastener into hole in metal strap, insert washers over end of fas-
tener, and then insert into hole drilled into concrete.
STEP 7: Tighten concrete fastener.
NOTE: Do not over-tighten the concrete fastener. Doing so can weaken the
integrity of the concrete fastener and cause it to break.
STEP 8: Finish unit assembly per unit’s installation instructions.
4.0 REFRIGERANT CONNECTIONS
All units are factory charged with Refrigerant 22 for 15 ft. of line set. All models are
supplied with service valves. Keep tube ends sealed until connection is to be made
to prevent system contamination.
5.0 REPLACEMENT UNITS
To prevent failure of a new heat pump unit, the existing tubing system must be correctly sized and cleaned or replaced. Care must be exercised that the expansion
device is not plugged. For new and replacement units, a liquid line filter drier should
be installed and refrigerant tubing should be properly sized. Test the oil for acid. If
positive, a liquid line filter drier is mandatory.
6.0 INDOOR COIL
REFER TO INDOOR COIL MANUFACTURER’S INSTALLATION INSTRUCTIONS.
IMPORTANT: The manufacturer is not responsible for the performance and operation of a mismatched system, or for a match listed with another manufacturer’s coil.
FIGURE 3
TIE-DOWN KIT ASSEMBLY
DETAIL A
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