This document describes the Hayward AccessLine Swimming Pool Heat Pump Unit, designed for heating swimming pool water. It is a single-phase unit that uses R32 refrigerant, which is a fluorinated greenhouse gas with a Global Warming Potential (GWP) of 675. The unit is intended for outdoor installation only.
Function Description:
The Hayward AccessLine heat pump is designed to efficiently heat swimming pool water. It operates by extracting heat from the ambient air and transferring it to the pool water, allowing for an extended swimming season. The unit features an electronic control panel for easy operation and monitoring of water temperature. It also includes a flow rate controller that activates the heat pump when the pool filtration pump is running and deactivates it when the filtration pump is off, ensuring proper water circulation for heating. A 3-minute time delay is integrated to protect control circuit components, prevent restart instability, and minimize contactor interference. The unit can operate in heating, cooling, and automatic modes, with temperature settings adjustable via the control panel or a smartphone app.
Important Technical Specifications:
The heat pump models covered in this manual include HP3051DT3HM, HP3081DT3HM, HP3111DT3HM, and HP3131DT3HM. All models are single-phase (230 V~, 1/50 Hz) and use R32 refrigerant.
- Heat Capacity (at 27°C / 78% RH, water inlet 26°C):
- HP3051DT3HM: 4.95 kW
- HP3081DT3HM: 8.10 kW
- HP3111DT3HM: 11.25 kW
- HP3131DT3HM: 12.80 kW
- Electrical Power Rating (at 27°C / 78% RH, water inlet 26°C):
- HP3051DT3HM: 0.99 kW
- HP3081DT3HM: 1.44 kW
- HP3111DT3HM: 1.98 kW
- HP3131DT3HM: 2.54 kW
- COP (at 27°C / 78% RH, water inlet 26°C): Ranges from 5.0 to 5.7 across models.
- Operating Current (at 27°C / 78% RH, water inlet 26°C): Ranges from 4.37 A to 11.38 A.
- Fuse Rating (type aM): Ranges from 6 aM to 16 aM.
- D-curve Circuit Breaker: Ranges from 6 D to 16 D.
- Cable Section: 3G 1.5 mm² to 3G 2.5 mm² (for max 25m length).
- Refrigerant Charge (R32): Ranges from 0.32 kg to 0.70 kg.
- Mass in teqCO2: Ranges from 0.22 to 0.47.
- Hydraulic Connection: 50 mm diameter.
- Water Flow Rate (at 27°C / 78% RH, water inlet 26°C): Ranges from 2.2 m³/h to 5.3 m³/h.
- Water Pressure Drop (max): Ranges from 1.0 kPa to 5.0 kPa.
- Acoustic Power (Lw dB(A)): Ranges from 63.4 to 66.8.
- Sound Pressure Level (at 1m, Lp dB(A)): Ranges from 51.6 to 52.8.
- Operating Range (Heating Mode): Outside temperature -2°C to +35°C, water temperature +12°C to +40°C, relative humidity <80%.
- Operating Range (Cooling Mode): Outside temperature +7°C to +43°C, water temperature +8°C to +40°C, relative humidity <80%.
- Set Point Setting Range: +8°C to +32°C.
Usage Features:
The heat pump is equipped with an intuitive electronic control panel.
- On/Off Control: A dedicated button for powering the unit on or off.
- Temperature Setting: Users can view and adjust the desired water temperature (set point) with 0.5°C precision. Settings are automatically saved after 5 seconds of inactivity.
- Operating Modes: The unit supports heating, cooling, and automatic modes, selectable via the control panel.
- Touch Screen Lock: The touch screen can be locked and unlocked by pressing the On/Off button for 5 seconds, preventing accidental changes.
- Water Flow Adjustment: The water flow rate can be adjusted using a by-pass valve to achieve a 2°C temperature difference between the inlet and outlet water. This can be monitored directly on the control panel or via a smartphone app.
- Bluetooth Connectivity: The unit features Bluetooth, allowing users to control the heat pump remotely (within 10m unobstructed range) using the "EyesPool Inverter Connect" smartphone application (available on Google Play and App Store). The app also allows monitoring of inlet/outlet water temperatures.
Maintenance Features:
Regular maintenance is crucial for the longevity and proper functioning of the heat pump.
- Annual Maintenance: Operations should be performed once a year.
- Evaporator Cleaning: Clean the evaporator coil with a soft brush or a water/air jet. Warning: Never use a high-pressure cleaner.
- Condensate Drain Check: Verify that the condensate drains are working correctly.
- Connection Checks: Ensure hydraulic and electrical connections are secure.
- Hydraulic Seal Check: Inspect the condenser's hydraulic seal.
- Qualified Personnel: All maintenance and repair work must be carried out by qualified personnel authorized to handle refrigerants.
- Power Disconnection: Always disconnect the heat pump from the main power supply before any maintenance work to prevent electric shock.
Winterization:
Proper winterization is essential to prevent damage and maintain warranty validity.
- Turn Off Unit: Switch the heat pump to "OFF" mode.
- Disconnect Power: Turn off the power supply to the heat pump.
- Drain Condenser: Drain the coil to prevent freezing damage.
- Close By-pass Valve: Close the by-pass valve and unscrew the inlet/outlet union connections.
- Remove Residual Water: Use a blow gun to remove as much residual stagnant water as possible from the condenser.
- Seal Inlets/Outlets: Close the water inlet and outlet on the heat pump to prevent foreign objects from entering.
- Cover Unit: Cover the heat pump with a winter cover (not supplied).
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