Document LTM0883 rev 2a

 

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Operating Heat Pump (With an External Controller)

Controller with an internal thermostat control

Activating Heat Pump

  1. Set the desired temperature at the external controller.
  2. Use the external controller to select either the "Pool" or "Spa" to heat.

Deactivating Heat Pump

  • Set the external controller to "OFF".

Please note - If equipped, the heat pump's cooling function will be disabled when using this type of controller.

If the cooling function is needed, the heat pump must be temporarily re-programed for local control. Check with controller installer if heat pump needs to be re-programmed.

Controller with 2 positions - ("Pool" and "Spa" - no internal thermostat control)

Activating Heat Pump

  1. Set the desired temperatures on the heat pump thermostats. See "Setting Thermostats"
  2. Use the external controller to select either the "Pool" or "Spa" to heat.
    • Rapid movement between thermostats without a "rest" between each change can cause a missed signal by the heat pump.

Deactivating Heat Pump

Please note - If equipped, the heat pump's cooling function will be disabled when using this type of controller.

If the cooling function is needed, the heat pump must be temporarily re-programed for local control. Check with controller installer if heat pump needs to be re-programmed.

Controller with 3 positions - ("High", "Low", and "Off" - no internal thermostat control):

Activating Heat Pump

  1. Set the desired temperatures on the heat pump thermostats. See "Setting Thermostats"
  2. Use the external controller to select either "High" or "Low" to heat.
    • When changing between thermostats, select "Off" first. Then select desired thermostat.
    • Rapid movement between thermostats without a "rest" between each change can cause a missed signal by the heat pump.

Deactivating Heat Pump

  • Set the external controller to "OFF".