(Created page with "=Hayward Heat Pumps= Hayward has sold many different models over the years. Hayward round heat pumps include models HP20654T, HP20654BT, HP20654TC, HP20854T, HP20854BT, HP2...") |
|||
| (20 intermediate revisions by the same user not shown) | |||
| Line 8: | Line 8: | ||
Hayward square heat pumps include models SUM25TA, SUM3TA, SUM3TAC, SUM4TA, SUM4TAC, SUM5TA, SUM5TAC | Hayward square heat pumps include models SUM25TA, SUM3TA, SUM3TAC, SUM4TA, SUM4TAC, SUM5TA, SUM5TAC | ||
SUM8TA, HML50TA, HML65TA, HML65TAC, HML80TA, HML80TAC, HML110TA HML110TAC, HML125TA, HET50BTA, HET65BTA, HET110BTA, HET125BTA HCB50BTA, HCB65BTA, HCB65BTAC, HCB80BTA, HCB80BTAC, HCB110BTA, HCB110BTAC, HP50TA, HP21004T, HP21124T, HP21204T, HP21404T, SUMXL112, SUMXL140. | SUM8TA, HML50TA, HML65TA, HML65TAC, HML80TA, HML80TAC, HML110TA HML110TAC, HML125TA, HET50BTA, HET65BTA, HET110BTA, HET125BTA HCB50BTA, HCB65BTA, HCB65BTAC, HCB80BTA, HCB80BTAC, HCB110BTA, HCB110BTAC, HP50TA, HP21004T, HP21124T, HP21204T, HP21404T, SUMXL112, SUMXL140. | ||
| + | |||
| + | Choose the version of Hayward Heat Pump Troubleshooting Guide that covers your model: | ||
| + | *The information below is from [https://www.troublefreepool.com/attachments/heat_pump_troubleshooting_guide__tsg_htpmpa__c95b-pdf.633520/ Hayward/Summit Heat Pump Troubleshooting Guide] and it contains additional troubleshooting and diagnostic information. | ||
| + | *This is a different version of the [https://www.troublefreepool.com/attachments/heat-pump_tsg-pdf.633529/ Troubleshooting Guide]. | ||
| + | *[http://www.haywardinternational.com/uploads/1/1/7/6/117653319/heatpump-troubleshooting-guide.pdf This heat pump troubleshooting guide] contains heat pump diagnostic flow charts and accompanying wiring diagrams to diagnose and repair Hayward & Summit branded pool heat pump systems. | ||
| + | |||
| + | General information about Heat Pumps can be found in [[Heat Pump Basics]]. | ||
==Sequence of Operation== | ==Sequence of Operation== | ||
| − | Round Heat Pumps and Square heat pumps generally operate in the same fashion. Power is connected to the contactor per the installation instructions. Ensure | + | Round Heat Pumps and Square heat pumps generally operate in the same fashion. Power is connected to the contactor per the installation instructions. Ensure the water line ‘in’ and ‘out’ connections are correct. Set the control for pool or spa operation. Adjust the thermostat setpoint above the water temperature. In approximately 3 to 5 minutes the heat pump will begin ‘heating’. This 3 to 5-minute delay is essential as it protects the compressor from short cycling. This time delay is part of the control circuit of the heat pump. |
Round units have a 5-minute delay during which no operation will occur. | Round units have a 5-minute delay during which no operation will occur. | ||
| Line 21: | Line 28: | ||
the heat pump to restart for 3-5 minutes. | the heat pump to restart for 3-5 minutes. | ||
| − | The thermostat will turn the heat pump on and off to keep the pool at the desired temperature. | + | The thermostat or automation controller will turn the heat pump on and off to keep the pool at the desired temperature. |
Heat pumps will not operate when the pool pump is off. | Heat pumps will not operate when the pool pump is off. | ||
| + | |||
| + | [http://www.haywardinternational.com/uploads/1/1/7/6/117653319/summitbasicoperationparameters.pdf Summit Heat Pump Basic Operation] has diagrams showing the operation. | ||
| + | |||
| + | ==Normal Operation== | ||
| + | |||
| + | All of the heat pumps listed above are charged with R-410A refrigerant. If you have a system that is charged with R-22 refrigerant and require assistance, call Hayward Technical Support Department at 908-355-7995 | ||
| + | |||
| + | ===Refrigerant Operating Pressures=== | ||
| + | Normal Refrigerant Operating Pressures are: | ||
| + | *Low side 125-135psi. Lower ambient temperatures will result in lower low side (suction) pressures. | ||
| + | *High Side 290-400psi. Higher water temperatures will result in higher high side (discharge) pressures. | ||
| + | |||
| + | ===Air Temperature Differential=== | ||
| + | Air Temperature Differential is the difference in the temperature of the air entering the coil (ambient air) and the air discharged out the top by the fan. It is normally 15-20 degrees Fahrenheit. | ||
| + | |||
| + | Low relative humidity and/or lower ambient temperatures can cause lower temperature differentials. | ||
| + | |||
| + | Measuring the temperature differential is the best way to determine if a heat pump is heating | ||
| + | |||
| + | ===Water In and Around Heat Pump=== | ||
| + | The heat pump evaporator coil (the surrounding coil) condenses moisture from the surrounding air. In higher-humidity areas, as much as 3-5 gallons per hour of run time is common. This is normal and increases the heat pump's efficiency. | ||
| + | |||
| + | The heat pump base pan design allows a drain line to be attached using readily available components to drain this water away if it is a problem. In most installation situations, however, this moisture runs off the | ||
| + | pad and is absorbed into the ground. | ||
| + | |||
| + | ===Best Methods to Determine if Heat Pump is Leaking Water=== | ||
| + | #If the heat pump leaks, it will continue to leak even when it is not running. If the water you see is condensation from the evaporator coil, it will dry up in a few hours. | ||
| + | #Test the water with a chlorine test strip. If the water shows no or very low levels of chlorine, the water is condensation. You may have a leak if the test strip shows chlorine levels similar to pool water. | ||
| + | #If you have sufficient water to test, test it for CYA. If the sample clouds and shows CYA in the water, you have a leak. CYA will not show in condensation. | ||
| + | |||
| + | ==Common Failures== | ||
| + | |||
| + | The picture below is from a Hayward Summit XL112 Heat Pump showing the capacitor in green and the contactor in orange.<ref>https://www.troublefreepool.com/threads/hayward-xl-112-electric-heat-pump-not-heating.308314/</ref> | ||
| + | |||
| + | [[File:Hayward XL112 Summit Heat Pump Capacitor Contactor.png|thumb]] | ||
| + | |||
| + | [https://www.youtube.com/watch?v=6DOCNmpznmY&t=29s YouTube:How To Diagnose & Repair Hayward Summit Pool Heater Heat Pump] | ||
| + | |||
| + | A large capacitor is used to start the fan and compressor. If the capacitor fails, the fan or compressor will not start. | ||
| + | |||
| + | The contactor turns on the compressor. If the contactor fails, the compressor will not run and generate heat. A clamp-on ammeter determines if the compressor is getting power from the contactor. | ||
| + | |||
| + | Low or high refrigerant pressures can prevent the compressor from running. An EPA608 certificate and proper gauges are required to check refrigerant pressures. | ||
| + | |||
| + | Low refrigerant can reduce the heat output. | ||
Latest revision as of 20:52, 25 March 2025
Hayward Heat Pumps
Hayward has sold many different models over the years.
Hayward round heat pumps include models HP20654T, HP20654BT, HP20654TC, HP20854T, HP20854BT, HP20854TC, HP21104T, HP21104TC.
Hayward square heat pumps include models SUM25TA, SUM3TA, SUM3TAC, SUM4TA, SUM4TAC, SUM5TA, SUM5TAC SUM8TA, HML50TA, HML65TA, HML65TAC, HML80TA, HML80TAC, HML110TA HML110TAC, HML125TA, HET50BTA, HET65BTA, HET110BTA, HET125BTA HCB50BTA, HCB65BTA, HCB65BTAC, HCB80BTA, HCB80BTAC, HCB110BTA, HCB110BTAC, HP50TA, HP21004T, HP21124T, HP21204T, HP21404T, SUMXL112, SUMXL140.
Choose the version of Hayward Heat Pump Troubleshooting Guide that covers your model:
- The information below is from Hayward/Summit Heat Pump Troubleshooting Guide and it contains additional troubleshooting and diagnostic information.
- This is a different version of the Troubleshooting Guide.
- This heat pump troubleshooting guide contains heat pump diagnostic flow charts and accompanying wiring diagrams to diagnose and repair Hayward & Summit branded pool heat pump systems.
General information about Heat Pumps can be found in Heat Pump Basics.
Sequence of Operation
Round Heat Pumps and Square heat pumps generally operate in the same fashion. Power is connected to the contactor per the installation instructions. Ensure the water line ‘in’ and ‘out’ connections are correct. Set the control for pool or spa operation. Adjust the thermostat setpoint above the water temperature. In approximately 3 to 5 minutes the heat pump will begin ‘heating’. This 3 to 5-minute delay is essential as it protects the compressor from short cycling. This time delay is part of the control circuit of the heat pump.
Round units have a 5-minute delay during which no operation will occur.
Square units have a 3-minute delay, but the fan will come on immediately once the heat pump is turned on and the thermostat is raised to a setpoint above the pool temperature.
The time delay will delay the start of the heat pump any time power is interrupted to the heat pump. When the heat pump satisfies the thermostat and shuts off, the delay will not allow the heat pump to restart for 3-5 minutes.
The thermostat or automation controller will turn the heat pump on and off to keep the pool at the desired temperature.
Heat pumps will not operate when the pool pump is off.
Summit Heat Pump Basic Operation has diagrams showing the operation.
Normal Operation
All of the heat pumps listed above are charged with R-410A refrigerant. If you have a system that is charged with R-22 refrigerant and require assistance, call Hayward Technical Support Department at 908-355-7995
Refrigerant Operating Pressures
Normal Refrigerant Operating Pressures are:
- Low side 125-135psi. Lower ambient temperatures will result in lower low side (suction) pressures.
- High Side 290-400psi. Higher water temperatures will result in higher high side (discharge) pressures.
Air Temperature Differential
Air Temperature Differential is the difference in the temperature of the air entering the coil (ambient air) and the air discharged out the top by the fan. It is normally 15-20 degrees Fahrenheit.
Low relative humidity and/or lower ambient temperatures can cause lower temperature differentials.
Measuring the temperature differential is the best way to determine if a heat pump is heating
Water In and Around Heat Pump
The heat pump evaporator coil (the surrounding coil) condenses moisture from the surrounding air. In higher-humidity areas, as much as 3-5 gallons per hour of run time is common. This is normal and increases the heat pump's efficiency.
The heat pump base pan design allows a drain line to be attached using readily available components to drain this water away if it is a problem. In most installation situations, however, this moisture runs off the pad and is absorbed into the ground.
Best Methods to Determine if Heat Pump is Leaking Water
- If the heat pump leaks, it will continue to leak even when it is not running. If the water you see is condensation from the evaporator coil, it will dry up in a few hours.
- Test the water with a chlorine test strip. If the water shows no or very low levels of chlorine, the water is condensation. You may have a leak if the test strip shows chlorine levels similar to pool water.
- If you have sufficient water to test, test it for CYA. If the sample clouds and shows CYA in the water, you have a leak. CYA will not show in condensation.
Common Failures
The picture below is from a Hayward Summit XL112 Heat Pump showing the capacitor in green and the contactor in orange.[1]
YouTube:How To Diagnose & Repair Hayward Summit Pool Heater Heat Pump
A large capacitor is used to start the fan and compressor. If the capacitor fails, the fan or compressor will not start.
The contactor turns on the compressor. If the contactor fails, the compressor will not run and generate heat. A clamp-on ammeter determines if the compressor is getting power from the contactor.
Low or high refrigerant pressures can prevent the compressor from running. An EPA608 certificate and proper gauges are required to check refrigerant pressures.
Low refrigerant can reduce the heat output.
