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 phases). To complete electrical hookup, connect the
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
the proper circuit breaker, disconnect, or time delay fuse protection.
Disconnect -A disconnecting 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 the power at the unit while the unit is being
serviced.
3.6 INITIAL STARTUP OF THE UNIT
NOTE- 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:
Turn on your filter pump. Check for water leaks and verify flow to and from the pool.
Turn on the electrical power supply to the unit, then press the key ON/OFF of the wired
controller, it should start in several seconds.
After running for a few minutes make sure the air leaving the top(side) of the unit is cooler
(Between 5-10 °C)
With the unit operating turn, the filter pump off. The unit should also turn off automatically.
Allow the unit and pool pump to run 24 hours per day until the desired pool water temperature
is reached. When the water-in temperature reaches this setting, the unit will slow down for a
period, if the temperature is maintained for 45 minutes the unit will turn off. The unit will now
automatically restart (as long as your pool pump is running) when the pool temperature drops
more than 0.2 below the 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.
10
INTER HEAT SMART
50IS / 58IS / 90IS