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.
3.INSTALLATION AND CONNECTION
3.6 Initial startup of the Unit
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 ℃)
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 (as long as your pool pump is running)
when the pool temperature drops more than 2℃below set temperature.
Water Flow Switch
- the unit is equipped with a flow switch that turns it on when the pool
pump is running and shuts it off when the pump shuts off. This switch is the same type used
in all gas pool heaters and is factory adjusted for normal pool installations. If the pool
water level is more than a few feet above or below the thermostat knob of the unit, your
dealer may need to adjust it at initial startup.
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.
NOTE- In order for the unit to heat the pool or spa, the filter pump must be running to
7
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 hookup, 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 the proper 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 uni, 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.
3.4 Swimming Pool Heat Pumps Plumbing
The Swimming Pool Heat Pumps exclusive full flow titanium heat exchanger
requires no special plumbing arrangements or bypass. The water pressure drop is
less than 10kPa at max. Flow rate. 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.
Location: 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 model have slip glue fittings which accept 40mm NB
PVC pipe for connection to the pool or spa filtration piping. By using a
50 NB to 40NB you can plumb 50NB PVC piping straight into the unit.
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet
to allow easy draining of unit for winterizing and to provide easier access should
servicing be required.
Condensation: Since the Heat pump cools down the air about 4 -5
℃
, water
may condense on the fins of the horseshoe shaped evaporator. If the relative
humidity is very high, this could be as much as several litres an hour. The water
will run down the fins into the basepan and drain out through the barbed plastic
condensation drain fitting on the side of the basepan. This fitting is designed to
accept 3/4" clear vinyl tubing which can be pushed on by hand and run to a suitable
drain. It is easy to mistake the condensation for a water leak inside the unit.
NB: A quick way to verify that the water is condensation is to shut off the
unit and keep the pool pump running. If the water stops running out of the
basepan, it is condensation. AN EVEN QUICKER WAY IS to TEST THE DRAIN
WATER FOR CHLORINE - if the is no chlorine present, then it's condensation.
3.INSTALLATION AND CONNECTION
6
To pool
From pump
PVC COUPLER
RECOMMENDED(Provided)
CONDENSATION
DRAIN
BARB FTG
