HeatPRO 120 H/C User manual

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IN GROUND POOL/SPA HEAT PUMP HEATERS
INSTALLATION & OPERATIONS MANUAL
FOR YOUR SAFETY
This Heat Pump is listed by ETL as complying
with the latest edition of the UL Standard for
Safety for Heating and Cooling Equipment”,
UL1995 and CSA C22.2 No. 236.
All Heat Pumps must be installed in accordance
with all applicable National and Local codes. In
the absence of local codes, refer to the latest
edition of the National Electric Code (NEC) in the
United States and the Canadian Electric Code
(CEC) in Canada.
FOR YOUR SAFETY:
This product must be installed and serviced by
authorized personnel, qualified in pool/spa heater
installation. Improper installation and/or
operation can cause death, serious injury
and/or property damage.
SAVE THESE
INSTRUCTIONS
CONTENTS Pg.
GETTING STARTED 2
INSTALLATION 11
LOCATING THE HEATER 11
WATER PIPING 13
ELECTRICAL CONNECTIONS 16
CHECK-OUT & START-UP 17
CONTROL SETUP 18
WATER TESTING 23
MAINTENANCE & SERVICE 23
WATER MAINTENANCE 23
WINTERIZATION 24
COMPONENT SERVICE 25
TROUBLESHOOTING 26
PARTS 29

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GETTING STARTED
WHAT TO EXPECT WHEN OPERATING YOUR POOL HEATER
This Flow Chart will provide steps to follow to protect your pool users as well as the heater by maintaining a
high water quality pool

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PLEASE READ BEFORE PROCEEDING
See product rating plate for manufactures information.
Basic safety precautions should always be followed, including the following:
Failure to follow instructions can cause death and/or severe injury.
This is the safety-alert symbol. When you see this symbol on your equipment
or in this manual, look for one of the following signal words and be alert to the
potential for personal injury.
WARNING warns about hazards that could cause death and/or severe
injury or major property damage and if ignored presents a potential hazard.
CAUTION warns about hazards that could cause minor or moderate
personal injury and/or property damage and if ignored presents a potential
hazard. It can also make consumers aware of actions that are unpredictable
and unsafe.
NOTICE indicates special instructions that are important but not related to
hazards.

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HEATER CONSTRUCTION
Names of heat pump heater components
Figure1: Sub-Assemblies
Fan Motor
Fan Blade
Fan Top
Evaporator
Compressor
Condenser
Control Box
Control Board
Front Panel

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Table1: SPECIFICATIONS
Features:
Titanium heat exchanger for
harshest water conditions
Quiet/Reliable R410A Scroll
compressors on most models
Digital Electronic Control with
oEasy to read display;
oDual thermostats for
independent pool and spa
temperature control
oDisplay of diagnostic codes
UV resistant cabinet for long life
Defrost function to manage
evaporator coil frosting for low
ambient temperature operation
High (590PSI) and low (80PSI)
refrigerant pressure switches
monitoring extreme operation
Compressor sound blanket
Corrosion resistant evaporator
fins
Models
120 H/C
100
112
125
140
Height (“A” inches)
37
37
44
37
44
Voltage/Phase/Hz
240/1/60
240/1/60
240/1/60
240/1/60
240/1/60
208-230/3/60
Capacity (Btu/h) 80A-80RH-80W
120,000
90,000
110,000
125,000
140,000
Power Input, KW (80A-80RH-80W)
6.18
4.63
5.66
6.43
7.2
COP 80A-80RH-80W
5.7
5.7
5.7
5.7
5.7
Capacity (Btu/h) 80A-63RH-80W
110,000
85,000
107,000
120,000
130,000
COP 80A-63RH-80W
5.4
5.5
5.4
5.5
5.5
Capacity (Btu/h) 50A-63RH-80W
75,000
58,000
75,000
80,000
85,000
COP 50A-63RH-80W
4.0
4.0
4.0
4.0
4.0
Compressor/Fan Motor/
System RLA (amp)
36.9/2.4/39.3
28.3/2.4/30.7
32.1/2.4/34.5
32.1/2.4/34.5
32.1/2.4/34.5
Compressor/Fan Motor/
System LRA (amp)
185/4.3/189.3
178/4.3/182.3
148/4.3/152.3
185/4.3/189.3
185/4.3/189.3
Min. Circuit Ampacity (amp)
48.5
37.8
42.5
42.5
42.5
Recommended Breaker Size (amp)
50
40
50
50
50
Max Fuse Breaker Size (amp)
70
60
70
70
70
Recommended water flow (gpm)
50
38.25
48.2
54
58.5
Minimum water flow (gpm)
30
30
30
30
30
Maximum water flow (gpm)
75
75
75
75
75
Weight (lbs.)
245
230
245
245
280
Shipping Weight (lbs.)
285
270
285
285
320
Shipping size L x W x H (in)
36.5 x 31 x 42
36.5 x 31 x 42
36.5 x 31 x 49
36.5 x 31 x 42
36.5 x 31 x 49

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Wiring Connection Diagram
WARNING –Risk of Electric Shock Before working on any electrical equipment, turn off power supply to the
equipment.
WARNING –Risk of Electric Shock. All electrical wiring MUST conform to applicable local codes, regulations,
and the National Electric Code (NEC). Hazardous voltage can cause death, shock, burn, and/or serious property
damage. To reduce the risk of electric shock, do NOT use an extension cord to connect unit to electric supply. Provide
a properly located electrical receptacle. To reduce the risk of electric shock replace damaged wiring immediately.
Locate conduit to prevent abuse from lawn mowers, hedge trimmers and other equipment. Do NOT ground to a gas
supply line. Figure 2a 240 VAC/60 Hz Single Phase Wiring Diagram

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Figure 2b 208/230 VAC/60 Hz Three Phase Wiring Diagram
Three Phase Connections

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Table2: CERTIFICATION AND COMPLIANCE
CERTIFICATION CODES AND STANDARDS
USA
CANADA
DESIGN CERTIFIED
ETL/ITS
ETL/ITS
DESIGN COMPLIANT
UL1995
CSA C22.2 No. 236
INSTALLATION COMPLIANT ELECTRIC
ANSI/NFPA 70
NEC
CSA C22.1 –Canadian
Electrical Code, Part I
CONFORMANCE WITH CODES: The heater shall be installed in accordance with all local and state codes and with
the requirements of the authority having jurisdiction of the installing site. The heater installation must conform to the
latest edition of the above listed installation codes.
SAFETY INFORMATION
WARNING –Read, Understand, and Follow all Instructions in this manual and on the equipment.
Failure to follow instructions can cause death, severe injury and/or serious property damage.
WARNING –Suction Entrapment Hazard. Suction in suction outlets and/or suction outlet covers which are,
damaged, broken, cracked, missing, or unsecured can cause death and/or severe injury due to the following
entrapment hazards:
Hair Entrapment- Hair can become entangled in suction outlet cover.
Limb Entrapment- A limb inserted into an opening of a suction outlet sump or suction outlet cover that is damaged,
broken, cracked, missing, or not securely attached can result in a mechanical bind or swelling of the limb.
Body Suction Entrapment- A negative pressure applied to a large portion of the body or limbs can result in an
entrapment.
Evisceration/ Disembowelment - A negative pressure applied directly to the intestines through an unprotected
suction outlet sump or suction outlet cover which is, damaged, broken, cracked, missing, or unsecured can result
in evisceration/ disembowelment.
Mechanical Entrapment- There is potential for jewelry, swimsuit, hair decorations, finger, toe or knuckle to be caught
in an opening of a suction outlet cover resulting in mechanical entrapment.
WARNING - To Reduce the risk of Entrapment Hazards:
o When outlets are small enough to be blocked by a person, a minimum of two functioning suction outlets per pump
must be installed. Suction outlets in the same plane (i.e. floor or wall), must be installed a minimum of three feet
(3’) [1 meter] apart, as measured from near point to near point.
o Dual suction fittings shall be placed in such locations and distances to avoid “dual blockage” by a user.
o Dual suction fittings shall not be located on seating areas or on the backrest for such seating areas.
o The maximum system flow rate shall not exceed the flow rating of as listed on Table 1.
o Never use Pool or Spa if any suction outlet component is damaged, broken, cracked, missing, or not securely
attached.
o Replace damaged, broken, cracked, missing, or not securely attached suction outlet components immediately.
o In addition two or more suction outlets per pump installed in accordance with latest ASME, APSP Standards and
CPSC guidelines, follow all National, State, and Local codes applicable.
o Installation of a vacuum release or vent system, which relieves entrapping suction, is recommended.
WARNING –Failure to remove pressure test plugs and/or plugs used in winterization of the pool/spa from the
suction outlets can result in an increase potential for suction entrapment as described above.
WARNING –Failure to keep suction outlet components clear of debris, such as leaves, dirt, hair, paper and other
material can result in an increase potential for suction entrapment as described above.
WARNING –Suction outlet components have a finite life, the cover/grate should be inspected frequently and
replaced at least every seven years or if found to be damaged, broken, cracked, missing, or not securely attached.
CAUTION –Components such as the filtration system, pumps and heater must be positioned so as to prevent their
being used as means of access to the pool by young children. To reduce risk of injury, do not permit children to use or
climb on this product. Closely supervise children at all times. Components such as the filtration system, pumps, and heaters
must be positioned to prevent children from using them as a means of access to the pool.

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WARNING –Hazardous Pressure. Pool and spa water heating and circulation systems operate under
hazardous pressure during start up, normal operation, and after pump shut off. Stand clear of circulation system
equipment during pump start up. Failure to follow safety and operation instructions could result in violent
separation of the pump housing and cover, and/or filter housing and clamp due to pressure in the system, which
could cause death, severe personal injury and/or property damage. Before servicing pool and spa water
circulation system, all system and pump controls must be in off position and filter manual air relief valve must be
in open position. Before starting system pump, all system valves must be set in a position to allow system water
to return back to the pool. Do not change filter control valve position while system pump is running. Before
starting system pump, fully open filter manual air relief valve. Do not close filter manual air relief valve until a
steady stream of water (not air or air and water) is discharged.
WARNING –Separation Hazard. Failure to follow safety and operation instructions could result in violent
separation of pump and/or filter components. Strainer cover must be properly secured to pump housing with
strainer cover lock ring. Before servicing pool and spa circulation system, filters manual air relief valve must be in
open position. Do not operate pool and spa circulation system if a system component is not assembled properly,
damaged, or missing. Do not operate pool and spa circulation system unless filter manual air relief valve body is
in locked position in filter upper body. Never operate or test the circulation system at more than 50 PSI. Do
not purge the system with compressed air. Purging the system with compressed air can cause components to
explode, with risk of severe injury or death to anyone nearby. Use only a low pressure (below 5 PSI), high
volume blower when air purging the pump, filter, or piping.
WARNING –Risk of Electric Shock. All electrical wiring MUST be in conformance with applicable local
codes, regulations, and the National Electric Code (NEC). Hazardous voltage can shock, burn, and cause death
or serious property damage. To reduce the risk of electric shock, do NOT use an extension cord to connect unit
to electric supply. Provide a properly located electrical receptacle. Before working on any electrical equipment,
turn off power supply to the equipment. To reduce the risk of electric shock replace damaged wiring immediately.
Locate conduit to prevent abuse from lawn mowers, hedge trimmers and other equipment. Do NOT ground to a
gas supply line.
WARNING –Risk of Electric Shock. Failure to ground all electrical equipment can cause serious or fatal electrical shock
hazard. Electrical ground all electrical equipment before connecting to electrical power supply.
WARNING –Risk of Electric Shock. Failure to bond all electrical equipment to pool structure will increase risk for
electrocution and could result in injury or death. To reduce the risk of electric shock, see installation instructions and consult a
professional electrician on how to bond all electrical equipment. Also, contact a licensed electrician for information on local
electrical codes for bonding requirements.
Notes to electrician: Use a solid copper conductor, size 8 or larger. Run a continuous wire from external bonding lug to
reinforcing rod or mesh. Connect a No. 8 AWG (8.4 mm2) [No. 6 AWG (13.3 mm2) for Canada] solid copper bonding wire to the
pressure wire connector provided on the electrical equipment and to all metal parts of swimming pool, spa, or hot tub, and metal
piping (except gas piping), and conduit within 5 ft. (1.5 m) of inside walls of swimming pool, spa, or hot tub.
IMPORTANT - Reference NEC codes for all wiring standards including, but not limited to, grounding, bonding and other general
wiring procedures.
CAUTION –These heaters are intended for use with permanently-installed pools and may be used with hot tubs and spas if
so marked. Do not use with storable pools. A permanently-installed pool is constructed in or on the ground or in a building
such that it cannot be readily disassembled for storage. A storable pool is constructed so that it is capable of being readily
disassembled for storage and reassembled to its original integrity.
WARNING –Risk of Hyperthermia. To avoid hyperthermia the following “Safety Rules for Hot Tubs” are recommended by
the U.S. Consumer Product Safety Commission.
1. Spa or hot tub water temperatures should never exceed 104°F [40°C]. A temperature of 100°F [38°C] is considered
safe for a healthy adult. Special caution is suggested for young children. Prolonged immersion in hot water can
induce hyperthermia.
2. Drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness, which could lead to
unconsciousness and subsequently result in drowning.
3. Pregnant women beware! Soaking in water above 100°F [38°C] can cause fetal damage during the first three
months of pregnancy (resulting in the birth of a brain-damaged or deformed child). Pregnant women should adhere to
the 100°F [38°C] maximum rule.
4. Before entering the spa or hot tub, users should check the water temperature with an accurate thermometer; spa or
hot tub thermostats may err in regulating water temperatures by as much as 4°F (2.2°C).
5. Persons taking medications, which induce drowsiness, such as tranquilizers, antihistamines or anticoagulants, should
not use spas or hot tubs.
6. If the pool/spa is used for therapy, it should be done with the advice of a physician. Always stir pool/ spa water before
entering the pool/spa to mix in any hot surface layer of water that might exceed healthful temperature limits and cause
injury. Do not tamper with controls, because scalding can result if safety controls are not in proper working order.

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7. Persons with a medical history of heart disease, circulatory problems, diabetes or blood pressure problems should
obtain a physician’s advice before using spas or hot tubs.
8. Hyperthermia occurs when the internal temperature of the body reaches a level several degrees above normal body
temperature of 98.6°F [37°C]. The symptoms of Hyperthermia include: drowsiness, lethargy, dizziness, fainting,
and an increase in the internal temperature of the body.
The effects of Hyperthermia include:
Unawareness of impending danger.
Failure to perceive heat.
Failure to recognize the need to leave the spa.
Physical inability to exit the spa.
Fetal damage in pregnant women.
Unconsciousness resulting in danger of drowning.
DEFINITIONS:
Suction Outlet: The Suction Outlet is a fitting, fitting assembly, cover/grate and related components that provide a means for
water to exit the pool and return into the pump circulating system. This fitting may also be referred to as the “Main
Drain”
Bypass Valves: A valve or series of valves that direct the pool water to flow or not flow through the heater.
CSA: Canadian Standards Association
CGA: Canadian Gas Association
ANSI: American Nation Standards Institute
NFPA: National Fire Protection Association
NEC: National Electric Code
ISTA: International Safe Transit Association
COP: Coefficient of Performance
Pressure measurement units:
Inches of Mercury (inHg) is typically used with atmospheric pressure measurements.
Pounds per square inch (PSI) is typically used with water “pressure”, “suction” or system measurements.
Inches of Water (inwc) is typically used with gas or air pressure measurements
(1.0 inHg = .49 PSI = 13.5inwc)

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INSTALLATION
This manual contains instructions for installation, operation, maintenance, troubleshooting, and parts lists for the proper operation of
the swimming pool heaters. Manufacturer strongly recommends that the installer read the manual before installing the swimming
pool heater. If after reviewing the manual any questions remain unanswered, contact the factory or local representative. Following
heater installation, the installer should leave all manuals with the consumer for future reference.
NOTICE: The installation instructions are intended for the use of a qualified technician, specifically trained and experienced in
the installation of this type of heating equipment. Some states or provinces require that installer be licensed. If this is the case in
the state or province where heater is located, the contractor must be properly certified.
SPRINKLER HEADS: The heater is designed to handle the wettest weather conditions that are typical of rain and high
humidity. Sprinkler heads force high-pressure water into the unit from the side at an odd angle. Make sure there are no sprinkler
heads near the heater that will spray on or into the unit. Many sprinkler systems are connected to a well system, whose water is
high in minerals, Sulphur, salt and other aggressive contaminates, that will leave a buildup on the unit and electronics causing
corrosion and shortens life.
NOTICE: Damage from sprinkler interaction is not covered under the warranty agreement. Make sure that sprinklers are
placed at a sufficient distance away so that normal wind will not carry the mist to the heat pump.
NOTICE: If located in an oceanfront area, the heat pump should be placed out of direct spray of sand and salt. This will clog,
damage, and corrode the unit. You may also consider protecting the unit by creating a physical barrier outside of the minimum
clearances between the unit and the prevailing beachfront wind. Damage caused by sand or salt spray is not covered by the
warranty.
THE USE OF A POOL COVER IS RECOMMENDED. A pool cover reduces heat loss, conserves chemicals, lowers the
load on filter systems and may provide a valuable safety feature
EQUIPMENT INSPECTION: On receipt of the heater, inspect the heater carton(s) for damage. If any carton(s) is damaged,
note it when signing for it. Remove the heater from the carton(s) inspect it and advise the carrier of any damages at once.
NOTICE: Do not drop the heater from a pickup truck tailgate to the ground. This may damage the heater.
NOTICE: The heat pump must not be tipped or transported on its side as evaporator “oil logging” may occur.
MATERIALS NEEDED FOR INSTALLATION
Installer is responsible for providing all external to unit electrical supplies. Extra hardware items may also be required for anchoring.
Additional plumbing items needed: 2 inch PVC pipe Schedule 40 and 2 inch fittings and components as follows:
2 inch Isolation Valves qty(3)
2 inch Check Valve qty(1)
2 x 2 x 2 PVC Tee’s qty(2)
NOTICE: Pipe fittings such as reducers, tees, and elbows cause pressure to drop as water flows through them. Plan the
plumbing layout carefully, using as few fittings as possible to connect your heat pump. See pad plumbing layout in the WATER
PIPING section for further direction.
LOCATING THE HEATER:
The installation location of the heat pump is very important for its efficient operation. The heat pump will perform more efficiently
when placed in direct sunlight with ample air intake and the avoidance of air re-circulation. Locate the pool heater in an area where
its condensation will not result in damage to the area adjacent to the heater or a nearby structure.
NOTICE: DO NOT install the heat pump in a fully enclosed space (i.e. garage, shed etc.). Such an installation will void its
warranty
All criteria given in the following sections reflect minimum clearances. However, each installation must also be evaluated on
prevailing local conditions such as proximity and height of walls and public access areas.
OUTDOOR INSTALLATION AND SERVICE CLEARANCES The heater must be installed outdoors such that the installation and
service clearances shown in Table3 and Figure3 are maintained. Additional installation requirements are as listed;
1. Level surface for proper draining.

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2. Suitable electrical supply line. See rating plate on the heat pump units for electrical specifications. A junction box is not needed
at the heat pump; connections are made inside the heat pump electrical compartment. Minimum wire size to be selected per
NEC based on unit MCA.
3. Electric disconnect switch that will interrupt all power to the unit. This switch MUST be within line of sight of the heat pump
4. Do not install in a location where growing shrubs may in time obstruct a heater’s air flow areas (sides or top).
5. Do not install this appliance under an overhang less than 72in from the top of the appliance. The area under the overhang must
be open on (3) sides.
6. Do not install the heater where water spray from ground level can contact the heater. The water could damage coil or reach the
controls causing electrical damage.
7. Do not install under a deck.
8. Do not install within 24in of any outdoor HVAC equipment.
9. Do not install where water may run-off a roof into the heater. A gutter may be needed to protect the heater.
CAUTION: Make sure the heat pump is not located where large amounts of water may run-off from the roof into the unit.
Sharp sloping roofs without gutters will allow massive amounts of rainwater, mixed with debris from the roof to be forced
through the unit (see above diagram). Failure to follow the instructions may result in property damage and a voided warranty.
1. A minimum of 24in [61cm] of clearance on all sides.
2. If the heat pump is to be installed under a cover or
vertical overhang, the unit must have a minimum of 72in.
[183cm] of clearance from the top of the heat pump to
the bottom of the cover or overhang.
3. Install the heat pump a minimum of 60in. [1.5m] from the
inside wall of the pool, spa, solid fence, or permanent
barrier. (not shown in Figure3)
Canadian installations require a minimum of 120 in. [3 m]
of clearance from pool water.
Table3: Installation Required Clearances
(in.)
Heater Panel
Outdoor Clearance
Top
Unobstructed
Front (control)
24-36
Rest of Perimeter*
24
Figure3: Outdoor Minimum Clearances
NOTE: The clearances shown above are for best practice and we encourage the use of the best practice clearances
when the space is available. Exceptions can be made where the size of the lot or the configuration of fences, walls or
other associated structures do not allow for the best practice clearances. Testing has shown our heat pumps can be
installed as close as 12" (coil sides) from a restriction (Wall, fence, etc.).

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EQUIPMENT PAD:Place the heat pump on a level surface such as concrete or a fabricated slab (pad). This allows proper
drainage of condensation and rainwater from the base of the unit. If possible, the pad should be placed at the same level or slightly
higher than the filter system equipment pad.
FLOORING:This heater may be installed on either non-combustible flooring or combustible flooring that does not reduce the
bottom clearance of the heater. Ultralite™ or equivalent concrete-over-foam HVAC pads are acceptable.
DRAINAGE AND CONDENSATION: Condensation will be produced by the evaporator coil when the unit is running and
drain at a steady rate, usually three to five gallons per hour, depending upon ambient air temperature and humidity. The more
humid the conditions, the more condensation will be produced.
ANCHORING: The heater is equipped for installation of anchoring screws when required by local codes. Follow all
relevant Local, State and National requirements regarding wind load anchoring. When anchoring is required to secure the
heat pump to concrete pad, use the specified hardware shown in the figure4. To complete the installation use the
following;
Anchor Clamps (FACTORY SUPPLIED; qty (8))
Concrete tapping screws (FIELD SUPPLIED; Tapcons® stainless steel, qty (8), size to be ¼in diameter with a
minimum length of 1-1/2in)
Fender washers (FIELD SUPPLIED; stainless steel, qty (8), size to be 1-1/2in)
Figure4: Equipment Pad and Anchoring
WATER PIPING
General: The heater is for use with pool and spa/hot tub water furnished by municipal water distribution systems only. The use of
mineral water, seawater (PPM>5000), or other non-potable waters will invalidate the warranty. These heat pumps are designed for
nominal water flows through the condenser. A minimum flow of 30gpm is required to ensure sufficient heat removal from the
condenser, thus avoiding overheating the unit. The minimum flow rate is to be calculated or measured with the in-floor cleaning
system in use, if the pool is so equipped, as well as any other jets or other demands on the water flow. Flow rates above 75gpm will
create excessive pressure drop through the condenser and require unnecessarily high pumping energy. Bypass valve setting may
be accomplished by temporarily installing a flow meter on the outlet line of the heater. Then adjust the manual bypass valve until
the flowrate through the heater is within the flow rate range specified. Once the manual bypass valve is set, note the position and
remove the valve handle to prevent accidental adjustment. Failure to install an External Bypass Assembly with a flow rate of 75
GPM or higher will void the warranty. Do not install any restriction in the water pipe between the heater outlet and the pool with the
exception of; three-way switching valve, in-line chlorinator and/or chlorinator check valve as shown in figureX below.

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Figure5: Pad Plumbing Layout
CAUTION: Improperly adjusted manual bypass valves will result in damage to the heater if the flow rates are not
maintained under all operating conditions as specified in listed SPECIFICATION. The heat exchanger will fail and this damage
will not be covered under the manufacturer’s warranty.
CAUTION: The heat pump must be protected from back siphoning of water. If there is any chance of back siphoning,
provide a check valve between the pool and the filter pump inlet. Failure to follow the instructions may result in property damage
due to flooding.
CAUTION: Automatic erosion type chlorinators, if used, must be installed downstream (between the heat pump and the
pool) of the heat pump, and a check valve (or Hartford Loop) installed in a manner that will not allow the raw chlorine to drain
back to the heat pump when the water pump is off. Failure to follow the instructions may result in property damage.
CAUTION: Do not pour chemicals directly into the skimmer. It could result in damage to your system and heat pump.
Arrangement of pool system components other than as illustrated in figure5 can affect the operation of the heat pump’s water
pressure switch. Location of the heat pump above or below the elevation of the pool water surface can also affect operation of the
switch. In general, the pressure switch can be adjusted to accommodate this effect if the heat pump water connections are no more
than six (6) feet [1,8 m] below the pool water surface or no more than fifteen (15) feet [4,6 m] above it. See instructions for pressure
switch adjustment in the START-UP section of this manual. If the heat pump is installed outside of this range, an external pressure
switch may need to be installed in the plumbing upstream of the heat pump.
NOTICE: Be advised, that when pool equipment is located below the pool surface, a leak at this lower level can result in
large-scale water loss or flooding. Manufacturer is not responsible for water loss or damage it causes
.
UNIONS: The heater is equipped with two
detachable union connectors, (2 union nuts and 2
gaskets) included with the heat pump. These
fittings must be installed on the heat pump water
inlet and outlet to facilitate servicing and winterizing
the unit. (See figure6). Heat sinks, heat tapes,
firemen switches, and check valves are not required
on the heater. However, if there is any chance of
“back-siphoning” of hot water when the pump stops
running, it is suggested that a check valve be used
on the heater outlet pipe down stream of bypass
system
Figure6: Included Union Connectors
INSTALLATION ABOVE POOL/SPA SURFACE: If

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the heater is installed less than three (3) feet
above the surface of the pool/spa water,
install eyeball fittings or directional flow
fittings on the end of the return water line to
the pool/spa to create adequate back
pressure at the heater to operate the
pressure safety switch when the pump is
running. If the heater is installed more than
three (3) feet above the surface of the
pool/spa water, install a loop as shown in
Figure7 to prevent drainage of water in the
heater during a filter change. For installation
above or below the pool/spa surface, refer to
START UP section for proper pressure
switch setup.
TYPICAL POOL ARRANGEMENT:
Figure8 illustrates a typical pool piping
diagram and layout for the pool equipment.
Also shown is implementation of an optional
Gas or Solar heater system for additional
capacity. Other pool heaters, such as gas-
fired or solar-powered devices must be
installed in a parallel circuit and operated
independently (only one at a time) for your
warranty to be valid.
NOTICE - Because of the intense
heat that can be generated by gas and
solar units, isolating it with a shut-off
valve and a check valve when gas or
solar heater is in operation protects the
heat pump. Failure to follow the
instructions may result in property
damage.
Notes:
1. Isolate the heat pump from hot
water flow of heating devices such as
gas or solar heater.
2. Install bypass loop for heat pump
unit.
Figure9 illustrates a multiple heater
installation for very large pools with and
without a manual bypass valve.
1. Maintain 4-6ft [1,2-1,8 m] clearance
between the units, 2ft [0,6 m] around
perimeter, and at least 6ft [1,8 m] over
them. Refer to LOCATING THE
HEATER section for more details.
2. Install bypass loops for each unit.
3. Install union style fittings from the heat
pump CONSUMER KIT adjacent to the
unit to facilitate easy service procedures
Figure7: Heater Installation Above Pool
Figure8: Typical Plumbing to Pool
Figure9: Multiple Heater System

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AUTOMATIC
CHLORINATORS AND
CHEMICAL FEEDERS: If used,
a chlorinator must be installed
downstream from the heater in the
pool return line and at a lower
elevation than the heater as shown in
Figure10. Install a separate positive
seal corrosion resistant check valve
between the heater outlet and the
chlorinator to prevent highly
concentrated sanitizer from back
siphoning into the heater. Back
siphoning may occur when the pump
is shut off and a pressure differential
is created.
Figure10: Automatic Chlorinator
ELECTRICAL CONNECTIONS:
GENERAL INFORMATION: An external supply of power is required to operate the pool heater system. Review
SPECIFICATIONS for this heater in the GETTING STARTED section to properly size field power connections. All wiring
connections to the heater must be made in accordance with the latest edition of the National Electrical Code ANSI/NFPA 70, unless
local code requirements specify otherwise. In Canada, follow CSA C22.1 Canadian Electrical Code, Part 1. The heater must be
electrically grounded and bonded in accordance with local codes or, in the absence of local codes, with National Electrical Code,
ANSI/NFPA 70. Wiring connections must be made as shown in the wiring diagram found inside the heater cabinet, and a copy is
provided for convenience in the GETTING STARTED section at the beginning of the manual. The heater must also have an
independent ground and bond connections. There is a ground lug inside the control box adjacent to the power connections and a
bonding lug on the side of the heater. Use a solid copper conductor, size 8 or larger. Run a continuous wire from external bonding
lug to reinforcing rod or mesh. Connect a No. 8 AWG (8.4 mm2) solid copper bonding wire to the grounding lug provided on the
heat pump and to all metal parts of swimming pool or spa, and to all electrical equipment, metal piping (except gas piping), and
conduit within 5 ft. (1.5 m) of inside walls of swimming pool or spa. IMPORTANT - Reference NEC codes for all wiring standards
including, but not limited to, grounding, bonding and other general wiring procedures.
WARNING: Risk of Electric Shock Review all safety information provided in the GETTING STARTED section
of this manual prior to servicing. Always disconnect power circuit before connecting the heat pump, or working on
the heat pump. This equipment contains wiring that carries high voltage. Contact with these wires could result in
death or personal injury and/or may also cause property damage.
WARNING: All electrical wiring MUST be in conformance with all applicable local codes, regulations and the
National Electric Code (NEC), in particular NEC Article 680: Swimming Pools, Fountains & Similar Installations
and Article 440: Air-Conditioning & Refrigeration Equipment.
NOTICE: Manufacturer does not recommend the use of ground fault protective devices in conjunction with heat
pumps. Most service calls regarding tripping of ground fault devices, are found to be “nuisance” calls. GFCI
nuisance trips are not covered under warranty.
NOTICE: If voltage drops below 208V, this may damage the heat pump and void the warranty. Take proper
steps to ensure correct voltage at the heat pump during operation

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ELECTRICAL CONNECTIONS: Turn OFF source power
to the heat pump before working on electrical connections. Any
unused openings must be plugged and all wiring secured for
proper strain relief. The power connections are to be made on
the contactor terminals located in the control box (see Figure11
Power Connections). Plug any unused openings with the
supplied caps.
Figure11: Power Connections
REMOTE CONTROL CONNECTION: The heater is
equipped for remote control via independent 2-wire
connections. Heat Only models connect the remote relay to
terminal J7. Heat/Cool models connect the heating remote
relay to terminal J7 and cooling remote relay to terminal J28. .
(See Figure12 for remote on/off connections).
1 Connect the Heating remote relay to the J7 connection and
the Cooling remote relay to J28 connection L(if applicable) on
the control board.
2 Turn the unit on. Press and hold both the “MENU” and the “+”
buttons until “bo” appears. This enables the bypass operation.
3 In bypass operation, when the relays are open the heater will
be off. When the heating relay (J7) is closed, the heater will
operate in heating. When the cooling relay (J28) is closed, the
heater will operate in cooling. The temperature control is done
remotely through the remote relays.
4 The heater will shut off when both relays are open or the inlet
temperature exceeds 104°F.
5. If both relays are closed, the heater will operate in heating
mode.
Note: The unit must be “On” to operate in bypass mode. In
bypass operation “bo” mode, the heater will only respond to the
remote relay closure. To return to local set point control at the
heater, press and hold both the “MENU” and the “+” buttons
until “n” appears. This enables the normal operation mode and
the heater will respond to the local set point.
.
Note: All remote wiring must be run in a conduit separate from
incoming power. Use 22 AWG wire for runs less than 30 feet.
Use 20 AWG wire for runs over 30 feet. The maximum
allowable run is 200 feet.
Figure12: Remote On/Off Control
CHECK-OUT & START-UP
GENERAL: After completing the installation connections to the pool heater, follow the procedures outlined below to ensure that
the pool heater is functioning properly. Before proceeding, MAKE CERTAIN there are no water leaks in any plumbing connections
or piping and water flow is within the proper flow rate ranges. The heater is equipped with a control system that automatically
monitors the water temperature set points and safety devices. As water conditioning is needed, it turns on the compressor to start
the appropriate transfer of heat to the water. Figure13 provides a summary of heater components and their locations in the system.
Check that the pump is operating and the system is filled with water prior to starting the heater.

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Figure13: Location of Components (heating operation flow shown)
The heat pump takes heat from the environment and uses it to heat the pool water. During heat pump operation, high temperature,
high-pressure sub cooled liquid Refrigerant (A) is throttled by Metering Device (TXV) and turned into low temperature, low-pressure
saturated liquid (B). The two-phase Refrigerant flows through the Air Coil (Evaporator), where the liquid refrigerant evaporates into
vapor by absorbing heat from the surrounding air. At the outlet of the Air Coil (Evaporator) it becomes a low temperature, low-
pressure superheated vapor (C). The Compressor receives this flow at the suction line (D), and compresses it into a high
temperature, high pressure superheated vapor, which is discharged from the Compressor (E) and flows into the Water Heat
Exchanger (Condenser). The heat carried by the flow is then released to the pool water. At the same time, the high temperature,
high-pressure superheated vapor is then condensed back to high-pressure sub cooled liquid (A), which completes the cycle. The
water, which is being forced through the Water Heat Exchanger (Condenser) by the pool pump, is thus heated as it passes through.
HEAT PUMP PROTECTION FEATURES: These heat pumps are equipped with safeguards that will stop heater operation
to protect the unit in case of the following events:
•Excessively high refrigerant pressure
•Excessively high water temperature
•Loss of refrigerant
•Fan Motor Failure
•Evaporator Freeze-up
•Low Ambient Temperature
CONTROL SETUP HEAT ONLY MODELS
This pool heater is equipped with a digital thermostat which allows the user to select the desired water temperature. The heater will
then function automatically to maintain the desired temperature. The heater has 3 modes of operation:
1. SPA: in this mode, the heater will automatically function to maintain the water temperature setting for SPA mode.
2. POOL: in this mode, the heater will automatically function to maintain the water temperature setting for POOL mode.
3. REMOTE OPERATION: In this mode the heater will respond to a remote call for heat or to control unit operation mode.
Use the set button in Figure14a to select POOL/SPA modes. The arrows will indicate which mode is currently active.
CONTROL SETUP HEAT/COOL MODELS
This pool heater is equipped with a digital thermostat which allows the user to select the desired water temperature. The heater will
then function automatically to maintain the desired temperature. The heater has 4 modes of operation:
1. HEAT: in this mode, the heater will automatically function to maintain the water temperature setting for HEAT mode.
2. COOL: in this mode, the heater will automatically function to maintain the water temperature setting for COOL mode
3. AUTO: in this mode, the heater will automatically function to maintain the water temperature setting for AUTO. It will operate in
HEAT or COOL mode as required.
4. REMOTE OPERATION: In this mode the heater will respond to a remote call for HEAT or COOL mode.
Use the set button in Figure14b to select HEAT/COOL/AUTO modes. The arrows will indicate which mode is currently active.

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Heat Only
USER PANEL AND KEYPAD INPUTS: The
control accepts user inputs via the keypad on the
user panel.
Display Window When power is supplied to the
unit and the display will either show sensor
temperature (in degrees F or C) or the diagnostic
code.
Plus “+” Button Raises the heat pump
temperature set point.
Minus “-“ Button Lowers the heat pump
temperature set point.
Menu Button Activates the On/Off, Pool, Spa or
Temperature unit function of the controller. Mode
is confirmed with Heating Mode Indicator
“On/Off”, “POL”, “SPA”or “F_C”.
Run Indicators Confirms compressor (flames)
and/or fan operation (blades) and the thermostat
is controlling a demand for heat.
Figure14a: Heat Only User Interface Keypad
FUNCTION SELECTION

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AUTOMATIC RESET TIME: The heater will automatically reset when an error condition is corrected and resume operation.
TEMPERATURE ADJUSTMENT: This control allows the user to have 2 individual pre-set temperature settings, “SPA” and
“Pool”. To adjust the temperature while in SPA or POOL mode, use the (Plus) and (Minus) buttons. When the numeric display
adjustment is complete, the control will return to displaying the actual measured water temperature. The temperature settings for
both SPA and POOL modes are initially set at the factory to 65°F. The minimum allowed settings for SPA and POOL modes is 50°F.
The maximum allowed settings for heating modes is 104°F.
DUAL POOL AND SPA SET POINTS: The unit can keep two temperature settings in memory: one for pool mode (max:
95°F/35°C), and the other for spa mode (max: 104°F/40°C). The heater will operate in the mode that temperature was last selected
(i.e. if you push either Plus or Minus in “Pool” mode, the heater will operate in “Pool” mode). Once the heating mode has been
programmed, it will be displayed for five seconds, and will then return to the actual pool water temperature. The arrows on the right
side of the display indicate the chosen heating mode.
FAHRENHEIT VERSUS CELSIUS: The control will display temperatures in either degrees Fahrenheit or Celsius. To
change the temperature display, Press the MENU key until you see F_C and by pressing one of the arrow keys, you can switch to
°F or °C. Once the temperature unit has been programmed, it will be displayed for five seconds, and will then return to the actual
pool water temperature in the mode that you have chosen.
DEFROST FUNCTION: The Defrost function is provided to prevent the evaporator coil from freezing when the outside air
temperature is near 50°F (10°C). The temperature at which this function will operate is not exact and each unit will vary depending
upon conditions surrounding the heat pump, clearance around the heat pump and heat pump maintenance. This time period will
vary from 15 minutes to several hours depending on ambient air conditions.
NORMAL OPERATION FOR POOL & SPA MODES: The control continually compares the water temperature with the
set point and the high limit temperature. When the water temperature is more than 1° below the set point a call for heat is generated
and a heating cycle is initiated.
1. Apply power to the pool heater by plugging in the non-fused disconnect block or moving the circuit breaker to the “ON” position.
2. Make sure the pool filter pump is operating properly.
3. Push the “MENU” button (x1) until “On/OFF” is displayed. Then use plus button to select “On” mode as shown in display. The
minus button will select the “OFF” mode.
4. Push the “MENU” button (x2) until “POL” is displayed. Then use plus and minus buttons to set Pool temperature set point as
shown in display.
5. Push the “MENU” button (x3) until “SPA” is displayed. Then use plus and minus buttons to set Spa temperature set point as
shown in display.
6. Push the “MENU” button (x4) until “F_C” is displayed. Then use plus and minus buttons to select Fahrenheit or Celsius mode
as shown in display.
7. The fan will start immediately. Allow 3 minutes for the Heat Pump to start.
8. When the unit starts, confirm that air is being discharged upward from the unit and the air is cooler than the ambient air.
9. Allow the Heat Pump to operate for 10-15 minutes in order for system pressure to stabilize.
10. Using a thermometer, ensure that the discharge air is at least 8ºF (4ºC) cooler than the ambient air temperature. If discharge air
does not have at least an 8ºF (4ºC) temperature change, refer to Performance Monitoring / Troubleshooting section in this
manual.
11. If Heat Pump fails to start:
a. Check temperature settings to confirm call for heating
b. Check water flow and water pressure switch
c. Ensure that power is on
d. Check TROUBLE SHOOTING SECTION in this manual or Call for service