Connecting a Pool/Spa Switching Relay
A direct connection to an external flow relay switch has been provided on the terminal microprocessor.
A pool/spa relay switch will automatically change between the pool and spa thermostat depending on the position of the plumbing valves.
- When water flows to the pool, the pool thermostat will be used.
- When water flows to the spa, the spa thermostat will be used.
DANGER
Failure to heed the following will result in injury or death.
- RISK OF ELECTRICAL SHOCK FROM ENERGY STORED IN CAPACITORS - MODELS EQUIPPED WITH VARIABLE FREQUENCY COMPRESSOR DRIVES STORE ELECTRICITY EVEN AFTER THE POWER HAS BEEN DEACTIVATED AT THE POWER BREAKER. Wait for 2 minutes after the shut down of equipment before servicing.
- Deactivate power while routing wiring to control board.
- Follow all National Electric Codes (NEC) and/or State and Local guidelines.
WARNING
Failure to heed the following may result in injury or death.
- This section is only for qualified installers who are familiar with the swimming pool and spa safety standards.
- The installer must be familiar with service industry techniques.
NOTICE
Failure to heed the following may result in damage to equipment.
- The wire size connecting the relay switch must be a minimum 22-gauge, 2-conductor, low-voltage wire.
- Use FS2 (dry contact) connection on the microprocessor.
Connecting Switch
Dry Contact Connection Points to the Microprocessor
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- Deactivate power to heat pump.
- Plumb the switch as indicated in accessories installation instructions.
- Remove heat pump electrical access panel.
- Using two of the three wires from the installed switch, route wires to the low voltage side of the electrical enclosure. The third wire is not used. Follow all National Electric Codes (NEC) unless State or Local guidelines supersede.
- Connect the wires to the jumper provided. Polarity is not important.
- Reattach heat pump access panel.
- Apply power to heat pump.
- Configure the heat pump to accept the pool/spa relay switch.
