5.8 Plumbing
The unit’s exclusive rated flow titanium heat exchanger requires no special plumbing arrangements except bypass
(set the flow rate according to the nameplate). The water pressure drop is less than 10kPa at max.
Flow Rate
Location
Since there is no residual
heat or flame temperatures
the unit does not need
copper heat sink piping.
PVC pipe can be run
straight into the unit.
Connect the unit in the pool
pump discharge (return) line
downstream of all filter and pool
pumps, and upstream of any
chlorinators, ozonators or
chemical pumps.
Standard models have slip glue fittings which accept 32mm or 50mm PVC pipe for connection to the pool or spa
filtration piping. By using a 50NB to 40NB you can plumb 40NB.
Consider adding a quick coupler fitting at the unit’s inlet & outlet to allow easy draining of the unit and to provide easier
access should servicing be required. Ensure pipework connecting to the inlet/outlet unions is appropriately supported,
any movement in this pipework can caused the rubber O-ring to pinch and leak.
5.9 Water Pump Connection
NOTE: there are 3 connection options for activation of heat pump/water pump:
1. Remote on/off – for connection to external pool automation (signal input)
2. Water Pump – 230V connection point for dedicated water pump
3. Dry Contact – connection for chlorinators with dry contact capabilities
(signal output)
5.10 Electrical Connection
Always use a suitably qualified Electrician to perform any electrical work, they must read the manual before
connecting.
Ensure all cabling, circuit breakers, and protections are of a suitable size and specification in accordance with
electrical wiring legislation for the heater being installed. Ensure to check that there is adequate voltage and current
available at the heater connection to run the unit.
Voltage range should be 220-240 volts for single phase, and 380-415 volts for 3 phase units. Voltage ranges outside
these parameters will cause heater damage and void your warranty.
1. Ensure power is disconnected during installation or service.
2. Always comply with the national and local electrical codes and standards.
3. Ensure the electrical cable size is adequate for heater requirements at the installation location.
4. The heater must be equipped with a circuit breaker and isolation device.
5. The circuit breaker must be installed between the heater and the water circulation pump if the water pump is
hard-wired into the heater. Please note recommended circuit breaker sizes make no allowance for a water
pump hard wired into the heater.
6. The unit must be well earthed. Remove the front panel to access the electrical connection terminals of the
heater. The electrical wiring diagram is affixed to the inside of the front panel or at the back of this manual.
5.11 Initial Start-Up
For the unit to heat the pool or spa, the filter pump MUST be running to circulate water through the heat exchanger.
1. Turn on the filter pump. Check for water leaks and verify there is flow both to and from the pool.
2. Turn of the unit’s electrical power supply, then press the ON/OFF button on the unit to start it.
3. After a few minutes of running, make sure the air leaving the unit is roughly between 5-10°C cooler.
4. With the unit in operation, turn the filter pump off. The unit should then turn off automatically.
5. Allow the unit and the pool pump to run for at least 24 hours a day until the desired temperature is reached.
Once this temperature is reached, the unit will periodically slow down and turn off if the temperature is
maintained for at least 45 minutes. The unit will automatically restart (as long as the pool pump is running)
when the pool temperature drops more than 0.2°C below set temperature.
