HAYWARD HEATPRO HP21104T User Manual

HP13023770 Rev: E  
Models: HP20654T, HP20654BT, HP20854T,  
HP20854BT and HP21104T  
INSTALLATION GUIDE  
Important Information to  
keep for Service  
Model # ________________  
Serial # ____________________  
Install Date _________________  
SAVE THIS INSTALLATION GUIDE  
The Hayward HeatPro 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 Hayward HeatPro 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  
Basic safety precautions should always be followed, including the following: Failure to follow instructions can cause severe  
injury and/or death.  
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 serious personal injury, death or major property damage and if  
ignored presents a potential hazard.  
CAUTION warns about hazards that will or can 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.  
The NOTICE label indicates special instructions that are important but not related to hazards.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 3 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
o
o
Dual suction fittings shall not be located on seating areas or on the backrest for such seating areas.  
The maximum system flow rate shall not exceed the flow rating of any listed (per current revision of ASME/ANSI A112.19.8) suction  
outlet cover installed.  
o
o
o
Never use the Pool or Spa if any suction outlet component is damaged, broken, cracked, missing, or not securely attached.  
Replace damaged, broken, cracked, missing, or not securely attached suction outlet components immediately.  
In addition two or more suction outlets per pump installed in accordance with latest APSP (formally NSPI) Standards and CPSC  
guidelines, follow all National, State, and Local codes applicable.  
WARNING – Never operate or test the circulation system at more than 50 PSI.  
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  
ten years or if found to be damaged, broken, cracked, missing, or not securely attached.  
WARNING – All suction and discharge valves MUST be OPEN when starting the circulation system. Failure to do so could result in  
severe personal injury and/or property damage. All drains and suction outlets MUST have properly installed covers, securely attached using the  
screws supplied with the covers. If screws are lost, order replacement parts from your supplier.  
WARNING–Hazardous Pressure. Pool and spa water circulation systems operate under hazardous pressure during  
start up, normal operation, and after pump shut off. Stand clear of circulation system equipment during start up. Failure to  
follow safety and operation instructions could result in violent separation of the pump housing and cover due to pressure in the  
system, which could cause property damage, severe personal injury, or death. 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 components. Strainer cover must be properly secured to pump housing with strainer cover lock ring. Before servicing  
pool and spa circulation system, filter 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 air relief valve body is in locked position in filter upper body.  
WARNING–Fire and burn hazard. Motors operate at high temperatures and if they are not properly isolated from any flammable  
structures or foreign debris they can cause fires, which may cause severe personal injury or death. It is also necessary to allow the motor to cool for  
at least 20 minutes prior to maintenance to minimize the risk of burns.  
WARNING – Failure to install according to defined instructions may result in severe personal injury or death.  
WARNING – The following “Safety Rules for Hot Tubs” recommended by the U.S. Consumer Product Safety Commission should be  
observed when using the spa.  
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.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 4 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
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.  
7. Persons with a medical history of heart disease, circulatory problems, diabetes or blood pressure problems should obtain a physicians 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:  
1.  
2.  
3.  
4.  
5.  
6.  
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 term Suction Outlet is a fitting, fitting assembly, cover/grate and related components that provide a means for water to exit the  
pool and into the pump circulating system.  
Inches of Mercury (in Hg) - A unit for measuring pressure below atmospheric (“suction” or “vacuum”) (1.0 inch Hg = .491 PSI)  
Main Drain – See Suction Outlet  
PSI – An abbreviation for pounds per square inch.  
INSTALLATION:  
Materials needed for Installation  
The following items are needed and supplied by the installer for all heat pump installations.  
1.  
Plumbing connections:  
2 inch PVC pipe Schedule 40 and 2 inch fittings and components as follows:  
(3) - 2 inch Isolation Valves  
(1) - 2 inch Check Valve  
(2) - 2 x 2 x 2 PVC Tee’s  
NOTE: 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 plumbing  
diagram under the heading “Plumbing Specifications and Layout” for more information.  
2.  
3.  
Level surface for proper draining.  
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.  
4.  
Electric disconnect switch that will interrupt all power to the unit. This switch MUST be within line of  
sight of the heat pump.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 5 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Hayward HeatPro Heat Pump Dimensions  
MODELS: HP20654T, HP20654BT, HP20854T, HP20854BT and HP21104T  
Hayward HeatPro Heat Pump Specifications  
Operating Specification  
HP20654T & HP20654BT HP20854T & HP20854BT  
HP21104T  
Volts  
Hertz  
240  
60  
240  
60  
240  
60  
Phase  
1
1
1
Compressor Maximum Operating Current  
Compressor LRA  
17.9A  
112A  
2.8A  
1/3  
28A  
135A  
2.8A  
1/3  
27A  
145A  
2.8A  
1/3  
Fan Motor Max Load (Amps)  
Fan Motor HP  
Minimum Circuit Ampacity  
Maximum Fuse Size (Amps)  
Refrigerant  
24  
36  
35  
40  
60  
60  
R-410A  
30  
R-410A  
30  
R-410A  
30  
Min. Water Flow Rate (GPM)  
Max. Water Flow Rate (GPM)  
Maximum Water Temperature  
75  
75  
75  
104°F  
104°F  
104°F  
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Tel: 908.351.5400 www.haywardpool.com  
Page 6 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Installation Specifications  
Receipt Inspection of Heat Pump Unit  
The carton bears specific warnings stating “DO NOT DROP OR TAILGATE”, as well as arrows indicating the  
correct vertical positioning. THE HEAT PUMP MUST NOT BE TIPPED OR TRANSPORTED ON ITS SIDE  
AS EVAPORATOR “OIL LOGGING” MAY OCCUR. Inspect the heat pump carton upon receipt for possible  
damage in shipment. A punctured or oil-soaked area of the carton could indicate damage to the sealed  
refrigeration system. If damage has occurred or is suspected, bring it to the immediate attention of the delivery  
carrier.  
Upon arrival at the installation site, the heat pump unit should be carefully unpacked and inspected for any  
damage that may have occurred in transit. Minor indentations to the aluminum evaporator fins will not affect  
performance of the heat pump unit.  
THE MANUFACTURER CANNOT ACCEPT RESPONSIBILITY FOR  
DAMAGE INCURRED OR REPAIRS NECESSITATED DUE TO IMPROPER  
HANDLING OF OUR EQUIPMENT  
Location - Determining Optimum Location  
THE LOCATION OF THE HEAT PUMP IS VERY IMPORTANT FOR EFFICIENT OPERATION.  
In order of importance, the installer must consider the following conditions:  
The heat pump will perform more efficiently when placed in direct sunlight.  
Ample air intake with avoidance of air re-circulation  
Accessibility of service panels  
NOTICE - DO NOT install the heat pump unit in a fully enclosed space (i.e. garage, shed etc). Failure to  
follow this instruction may result in poor performance, property damage, and voided warranty.  
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Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 7 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Placement / Clearances  
All criteria given in the following sections reflect minimum clearances. However, each installation must also be  
evaluated, taking into account the prevailing local conditions such as proximity and height of walls and public  
access areas.  
The heat pump must be placed to provide clearances on all sides for maintenance and inspections.  
1.  
2.  
A minimum of 24 in [61 cm] of clearance on all sides.  
If the heat pump is to be installed under a cover or vertical overhang, the unit must have a minimum of  
72 in. [183 cm] 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 60 in. [1.5 m] from the inside wall of the pool, spa, solid fence, or  
permanent barrier. Canadian installations require a minimum of 120 in. [3 m] of clearance from pool  
water.  
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.  
NOTE: A gutter or down spout may need to be installed to protect the heat pump.  
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.  
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Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 8 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
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. Keep the drain hole, located at the rear of the bottom  
pan of the base of the unit, clear of debris. A drain hose/line may be attached to the drain hole in the base pan  
to help direct drainage away from the unit.  
NOTICE  
Make sure there are no sprinkler heads near the heat pump that will spray on or into the unit.  
Sprinkler damage 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. If the filtering system area has plants that need water, use  
a trickle type irrigation sprinkler instead of the broadcast type  
The heat pump 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. Many  
sprinkler systems are connected to a well system, whose water is high in minerals, sulphur and other aggressive  
contaminates, that will leave a build up on the evaporator coils and electronics causing corrosion and hampering  
efficiency. If your location is within 15 miles of the coast, salt may also be in the well water.  
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 planting  
shrubbery or installing a privacy fence between the unit and the prevailing beachfront wind. Damage caused by  
sand or salt spray is not covered by the warranty.  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
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Tel: 908.351.5400 www.haywardpool.com  
Page 9 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Anchoring  
Anchor Installation  
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 diagrams below.  
Use this diagram to tie-down Heat Pump Models:  
HP20654T, H20654BT, HP20854T, HP20854BT & HP21104T  
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Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 10 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Plumbing Specifications and Layout  
The figure below illustrates the standard plumbing layout with a single heat pump unit.  
MANUAL  
POOL  
HEATER  
ISOLATION  
VALVES  
CHECK  
VALVE  
FILTER  
CHEMICAL  
LOOP  
CHEMICAL  
FEEDER  
POOL  
PUMP  
MANUAL  
BYPASS  
VALVE  
TO POOL  
OR SPA  
FROM POOL  
OR SPA  
NOTICE -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.  
NOTICE -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.  
NOTICE - 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 previously and in the following diagrams 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 heat pump 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. For  
more information call Hayward Technical Service at 908 355-7995.  
Be advised, that when pool equipment is located below the pool surface, a leak can result in large-scale water  
loss or flooding. Hayward is not responsible for water loss, flooding or damage caused by either occurrence.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 11 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
NOTICE - When the piping installation is complete, operate the pool filter pump with the heat pump off.  
Check the entire piping system for leaks. Observe the filter water pressure gauge for abnormalities or  
obstructions in the filtering system. Failure to follow the instructions may result in property damage.  
Flow Rate  
MODEL: HP20654T & HP20654BT  
This heat pump is designed for minimal water flow of 30 gpm to ensure sufficient heat removal from the  
condenser, thus avoiding overheating the unit. Flow rates above 75 gpm will begin to create excessive pressure  
drop through the condenser and require unnecessarily high pumping energy.  
MODELS: HP20854T & HP20854BT  
These heat pumps are designed for nominal water flows of 34 gpm through the condenser. A minimum flow of  
30 gpm is required to ensure sufficient heat removal from the condenser, thus avoiding overheating the unit.  
Flow rates above 75 gpm will begin to create excessive pressure drop through the condenser and require  
unnecessarily high pumping energy.  
MODELS: HP21104T  
These heat pumps are designed for nominal water flows of 47 gpm through the condenser. A minimum flow of  
30 gpm is required to ensure sufficient heat removal from the condenser, thus avoiding overheating the unit.  
Flow rates above 75 gpm will begin to create excessive pressure drop through the condenser and require  
unnecessarily high pumping energy.  
External Bypass  
The heat pump is designed for a maximum flow rate of 75 GPM. An External Bypass Assembly can be added to  
regulate the flow rate through the heat exchanger to prevent damage. Failure to install an External Bypass  
Assembly with a flow rate of 75 GPM or higher will void the warranty.  
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Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 12 of 20  
Unions  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Two detachable union connectors, (2 union nuts and 2 gaskets) included with the heat pump, must be installed  
on the heat pump water inlet and outlet to facilitate servicing and winterizing the unit. (See figure below).  
Gasket  
Union Connector  
Union Nut  
Installation of Pool Heat Pump Above Pool Surface  
If the pool heat pump is installed more than three (3) feet [0,9 m] above the surface of the pool water, install  
directional flow fittings (not included with heat pump) on the end of the return water line to the pool. This will  
create adequate backpressure at the heat pump to operate the water pressure switch.  
In some cases, such as when the heat pump is installed 6-8 feet [1,8 – 2,4 m] above the pool surface, it may be  
necessary to install a positive flow switch in the waterline instead of the pressure switch.  
Installation of Pool Heat Pump Below Pool Surface  
A water pressure switch is integrated into the system to ensure that the unit  
only operates when water is flowing through the heat exchanger. If the heat  
pump is installed below the pool surface, the backpressure of water from the  
pool can cause problems with the internal water pressure switch setting. The  
water pressure switch is located in the control panel of the heat pump.  
Adjustment knob – counterclockwise decreases pressure set point, adjustment  
knob – clockwise increases the set point.  
Backpressure from the pool can close this switch, whose function is to tell the  
heat pump that the filter pump is running. This pressure switch setting should  
be adjusted so that the heat pump is running only while the pool filter pump is  
operating.  
Adjustment  
knob  
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Page 13 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
NOTICE - If the heat pump runs for more than a couple of minutes without the filter pump running,  
the unit can become overheated and damaged. After adjusting the pressure, turn off pool pump to  
ensure the heat pump does not run. It is possible for water to flow through the heat pump without operating  
the heat pump.  
Installation of Multiple Heat Pumps  
If a heat pump pool heater sizing calculation indicates that two or more heat pumps are required to heat a single  
pool, the units are to be installed for parallel operation. Series plumbing reduces efficiencies of each heat  
pump downstream.  
The figure below shows installation of multiple units in parallel. Contact Hayward Technical Service if  
installing more than two units.  
Notes:  
1. Maintain 4-6 ft [1,2-1,8 m] clearance between the units, 2 ft [0,6 m] around them,  
and at least 6 ft [1,8 m] over them. Refer to the pages 7 & 8 for more information.  
2. Install bypass loops for each unit.  
3. Install union style fittings from the heat pump KIT adjacent to the unit to facilitate easy service  
procedures.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 14 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Installation in Combination with Solar or Gas Heaters  
If you are installing a heat pump in combination with any other type of heating device, please call the  
HAYWARD service department at (908) 355-7995. We will advise you of installation practices that will help  
keep your warranty valid.  
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 stay 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 Hayward heat pump unit.  
Electrical Specifications  
WARNING - RISK OF ELECTRICAL SHOCK OR ELECTROCUTION  
Failure to follow the instructions may result in permanent injury or death.  
All electrical wiring MUST be in conformance with all applicable local codes, regulations  
and the National Electric Code (NEC). Ground and bond the heat pump before connecting to  
electrical power supply. Failure to bond the heat pump can cause serious or fatal electrical  
shock hazard. DO NOT ground to a gas supply line. To avoid dangerous or fatal electrical shock, turn OFF  
power to the heat pump before working on electrical connections.  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
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Tel: 908.351.5400 www.haywardpool.com  
Page 15 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
WARNING - This heat pump contains wiring that carries high voltage. Contact with these wires could  
result in personal injury or death to pool or spa users, installers, or others due to electrical shock, and may also  
cause damage to property. Always disconnect power circuit before connecting the heat pump, or working on the  
heat pump. Failure to follow the instructions may result in personal injury or death.  
WARNING - Label all wires prior to disconnection when servicing controls. Wiring errors can cause  
improper and dangerous operation. Verify proper operation after servicing. Failure to follow the instructions  
may result in personal injury or death.  
General Information  
WARNING - Wiring connections must be made as shown in the wiring diagram found on the inside of the  
heat pump access panel. The heat pump must include a definite means of grounding and bonding. There is a  
ground lug inside the heat pump electrical compartment and a bonding lug on the rear of the heat pump base  
pan. Failure to properly make wiring terminations may result in personal injury.  
Main Power  
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.  
The preceding standards govern the installation of all heat pumps. HeatProTM heat pumps are designed and  
safety tested by a certified laboratory to be installed under applicable standards detailed within the NEC.  
Hayward does not recommend the use of ground fault protective devices in conjunction with heat pumps.  
Service calls, found to be due to “nuisance” tripping of ground fault devices, are not covered under the factory  
warranty.  
CAUTION - An outdoor waterproof disconnect should be mounted  
adjacent to the heat pump for safety.  
The data plate is located on the front cover of each unit in the position  
illustrated in the figures above. Refer to the unit data plate for specific  
Data  
electrical power and over current protection device requirements. Based  
on data plate information, wire sizing, and over current protection  
devices per above codes and standards.  
Plate  
Bonding  
CAUTION - This heat pump must be connected to a bonding grid with a solid copper conductor wire gauge  
8 AWG or larger to comply with Article 680 of the NEC. All Hayward heat pumps are designed for copper  
conductors only.  
The National Electrical Code (NEC) in Article 680, and most other codes require that all metallic components  
of a pool structure, including reinforcing steel, metal fittings and above ground equipment, be bonded together  
with a solid copper conductor wire gauge 8 AWG or larger. The heat pump, along with pumps and other pool  
equipment must be connected to this bonding grid. A bonding lug is provided on the rear of the base pan of the  
heat pump to facilitate bonding.  
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Tel: 908.351.5400 www.haywardpool.com  
Page 16 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Wiring Diagrams  
Refer to the following wiring diagrams for electrical connections.  
This wiring diagram is for use with all units that have dual digital thermostats without Time  
Clock Override.  
Models: HP20654T, HP20654BT, HP20854T, HP20854BT & HP21104T  
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Page 17 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Connecting to Remote Systems  
HAYWARD heat pumps are compatible, in the heating mode only, with one or more of the remote systems in  
the pool and spa industry today.  
Thoroughly read all installation instructions of the remote system before connecting this unit.  
The figure below shows the remote systems connections to the HAYWARD heat pump.  
Connection to Compatible Remote Systems:  
Connect two wires (24 VAC) from the remote system. In the  
TB201 Terminal Block of the Interface board, connect one wire  
into terminal 1, and the other into terminal 2.  
The thermostat on the heat pump must be in the “Standby”  
mode for the remote system to control the unit.  
Or  
Connect three wires marked as pool, spa, and common from the  
remote system to TB201 Terminal Block as follows:  
Terminal 3 = Pool  
Terminal 4 = Common  
Terminal 5 = Spa  
The thermostat on the heat pump must be in the “Standby”  
mode for the remote system to control the unit.  
Thermostat Interface Board in the unit  
Control Box  
The thermostat on the heat pump will control the water temperature.  
Initial Start-Up  
After completing the electrical and piping 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 air or water leaks in any plumbing connections or piping  
and water flow is within the proper flow rate ranges. The proper flow rate ranges for ALL Hayward HeatPro  
Heat Pumps are a minimum of 30 GPM and a maximum of 75 GPM.  
Note: Damage caused by flow rates outside this range will void the warranty.  
CAUTION - Keep all objects off the top of the heat pump. Blocking airflow could damage the unit  
and will void the warranty.  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 18 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Start-Up Procedures  
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. Place the pool heater thermostat in the “Standby” mode by ensuring the light above the “POOL” button  
(and “SPA” button for dual thermostat application) is not illuminated. If the light(s) are lit, depress the  
“POOL” button (and “SPA” button for dual thermostat application) to put the unit in “STANDBY”  
mode.  
3. Make sure the pool filter pump is operating properly.  
4. Push the “POOL” button to activate the unit and then set the pool Heat Pump thermostat to a  
temperature higher than the current pool water temperature.  
5. Allow 5 Minutes for the Heat Pump to start.  
6. When the unit starts, confirm that air is being discharged upward from the unit and the air is cooler than  
the ambient air.  
7. Allow the Heat Pump to operate for 10-15 minutes in order for system pressure to stabilize.  
8. 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.  
9. If Heat Pump fails to start:  
a) Check water flow  
b) Ensure that power is On  
c) Refer to Performance Monitoring Section of this Manual  
Performance Maintenance and Troubleshooting  
Installation Check: Verify the heat pump installation is compliant per this installation manual. Verify the  
electrical connection is correct by ensuring the breaker is sized correctly and the wiring is per the National  
Electric Code (NEC). Reference this installation manual to ensure that the plumbing is installed correctly.  
Circuit Breakers: If it is suspected that a circuit breaker may be tripped, turn the breaker to the “Off” position  
and then back to the “On” position.  
NOTICE: Service to be conducted ONLY by an EPA Certified Service Technician.  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 19 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
General Troubleshooting Guide for Hayward HeatPro Heat Pump  
Possible Cause Possible Solution(s)  
No power to unit  
Problem  
Make sure power is on.  
Breaker is tripped  
Thermostat not turned up  
high enough  
Check the breaker / see note above  
Turn thermostat up until unit comes on  
5 minute delay timer still  
running  
Be sure the 5 minute delay has passed  
Make sure filter is clean  
Make sure filter pump is on  
Unhook cleaning devices  
Unit is not operating.  
Low water flow  
Check outside ambient temperature or wait  
Outside temperature too low for warmer temperatures to operate. (refer to  
Operating section)  
Fan not functioning  
Call for service.  
Check output air  
Heat pump is running but  
is not heating, “Run” light  
does not come on.  
temperature to input air  
temperature. Differential  
should be at least 8ºF (4ºC)  
Low ambient air temperature. Allow outside  
air temperature to exceed 60ºF, then re-check  
System Component failure. Call for service.  
Thermostat set too high Turn thermostat down  
Heat pump runs  
continually  
Turn off the filter pump. If the unit is still  
Electrical component failure running after 2 minutes, turn off the power to  
the unit and call for service.  
Check valve settings and ensure water flow is  
Bad valve or improper  
water flow  
sufficient (is the filter pump running  
continually?) If heat pump continues to cycle,  
turn unit off to prevent compressor damage.  
Check evaporator coil for severe frost. Turn  
unit off to prevent compressor damage.  
Heat pump is cycling (on /  
off too quickly)  
Low refrigerant, low  
ambient temp, or high  
humidity with low ambient  
temp  
If heat pump continues to cycle, turn unit off  
to prevent compressor damage.  
Condensation  
This is normal and there is no reason to be  
concerned  
Turn the unit off for several hours, but leave  
the filter pump running continuously. If  
water quantity decreases, then it is only  
condensation. Otherwise there is a possible  
leak.  
Water is coming from  
bottom of unit  
Possible water leak  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 20 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
Display Diagnostic Codes -Troubleshooting Guide for Hayward HeatPro Heat Pump  
Display  
Problem  
Possible Cause  
Solution  
Tripped circuit breaker/  
no power supply  
Check breaker and ensure that the unit is properly  
installed.  
No power to heat pump  
Faulty electrical  
component  
(blank)  
Call for service.  
Unit will not turn on  
5-minute delay  
Wait 5 minutes.  
Check water flow to heat pump.  
Clean your filter  
Make sure all valves are fully open and bypass  
valve is closed.  
Ensure pool filter pump is on.  
Normal operation for TCO function  
Water Pressure Switch  
Low or no water flow  
Air flow obstruction  
PS  
LP  
Turn off fountains, etc.  
Call for service.  
Low Pressure Switch  
Low Ambient  
Temperature cutoff  
Wait for outside temperature to reach 60°F.  
Check water flow to heat pump.  
Clean your filter  
Make sure all valves are fully open and bypass  
valve is closed.  
Ensure pool filter pump is on and turn off  
fountains.  
Set unit to “ACP” if using heat / cool option.  
Refer to text on HP3100 control board.  
Low water flow  
High water temp  
High Pressure Switch  
HI  
Check pool temp. Wait until pool needs heat.  
Call for service.  
Call for service.  
Temperature sensor  
Temperature sensor  
Failure  
Failure  
SH  
OP  
Call for service.  
Temporary display. Shows for 1-2 seconds when  
the unit is first turned on.  
Thermostat reset  
Normal operation  
888  
Refer to owner’s manual of the remote device.  
Remote device is  
controlling the unit.  
Remote heat demand  
Push button stuck  
rhd  
If a remote device is not connected, call for  
service.  
Release button is stuck.  
If button does not release. Call for service.  
PST  
PNL  
Control not receiving  
data from panel  
Control communication  
problem.  
Call for service.  
Panel not receiving data Control communication  
Call for service.  
CEL  
CHC  
dEF  
from control  
problem.  
Board self-check error  
Board Failure  
Frost build up on  
evaporator coil.  
Sensor Failure  
Call for service.  
No action required. Unit is defrosting  
automatically.  
Call for Service  
Call for Service  
Defrost Mode  
Coil Sensor  
Coil Sensor  
cOP  
cSH  
Sensor Failure  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  
Page 21 of 20  
HEATPRO HEAT PUMP  
HP13023770 Rev: E  
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS  
Pomona, CA Clemmons, NC Nashville, TN  
Tel: 908.351.5400 www.haywardpool.com  

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