INSTALLATION & INSTRUCTION MANUAL - INVERTER SERIES
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I9, I12, I17, I19 - SWIMMING POOL HEAT PUMP UNIT
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3. INSTALLATION AND CONNECTION
3.5 Swimming Pool Heat Pumps Electrical Wiring
NOTE: Although the unit heat exchanger is electrically isolated from the rest of the unit, it simply prevents the
flow of electricity to or from the pool water. Grounding the unit is still required to protect you against short
circuits inside the unit. Bonding is also required.
The unit has a separate molded-in junction box with a standard electrical conduit nipple already in place. Just
remove the screws and the front panel, feed your supply lines in through the conduit nipple and wire-nut the
electric supply wires to the three connections already in the junction box (four connections if three phase). To
complete electrical hook-up, connect Heat Pump by electrical conduit, UF cable or other suitable means as
specified (as permitted by local electrical authorities) to a dedicated AC power supply branch circuit equipped
with a
D Curve
circuit breaker, disconnect or time delay fuse protection.
Disconnect - A disconnect means (circuit breaker, fused or un-fused switch) should be located within sight of
and readily accessible from the unit, this is common practice on commercial and residential air conditioners
and heat pumps. It prevents remotely-energizing unattended equipment and permits turning off power at the
unit while the unit is being serviced.
3.6 Initial start-up of the Unit
NOTE- In order for the unit to heat the pool or spa, the filter pump must be running to circulate water through
the heat exchanger.
Start-up Procedure - After installation is completed, you should follow these steps:
1. Turn on your filter pump. Check for water leaks and verify flow to and from the pool.
2. Turn on the electrical power supply to the unit, then press the key ON/OFF of wire controller, it should start
in several seconds.
3. After running a few minutes make sure the air leaving the top(side) of the unit is cooler (Between 5-10 °C)
4. With the unit operating turn the filter pump off. The unit should also turn off automatically,
5. Allow the unit and pool pump to run 24 hours per day until desired pool water temperature is reached.
When the water-in temperature reach setting, the unit just shuts off. The unit will now automatically restart (if
your pool pump is running) when the pool temperature drops more than 2°C below set temperature.
Time Delay- The unit is equipped with a 3-minute built-in solid state restart delay included to protect control
circuit components and to eliminate restart cycling and contactor chatter.
This time delay will automatically restart the unit approximately 3 minutes after each control circuit
interruption. Even a brief power interruption will activate the solid state 3-minute restart delay and prevent
the unit from starting until the 5-minute countdown is completed.
Power interruptions during the delay period will have no effect on the 3-minute countdown.
