24
o Solar retro
In some situations, when a heat pump is replacing a solar heating system, the pipework is
available to be used next to the house but there is no way of adding a new electrical circuit
to the pool equipment. With the use of an additional temperature sensor, you can use the in-
built flow switch to activate the heating. Allowing you to use the existing solar pump and to
install the heater closer to the switch board.
1. In may be impractical to get a new power cable from the house switch board to the pool
equipment area due to finished flooring etc., in this case It may be possible to use the existing
pipework which connects to the house and install a power cable from there.
2. An external thermostat controller can initiate the existing circulation pump, thus running the
heat pump through the flow switch for full temperature control.
Please speak to your installer for more information.
3. No additional wiring to the heat pump is needed internally
4. Timers are set on the external thermostatic controller
5. Set heat pump a couple of degrees above the set point temperature of the external
temperature controller.
A: Underground piping
B: Pool pump
C: Dontek Controller
D: Temperature sensor
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