Wellis PASRW012, Installation Instructions Manual

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7
3.INSTALLATION AND CONNECTION
3.5 Spa 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 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 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 startup 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.
Startup 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.
8
4. USAGE AND OPERATION
4.1.
The Function of controller
Main display area
OFF
ON
F
min
SET
TEMP
IN
3
TEMP
OUT
MODE
2
SET
Aux. Display area
1 4 5
1
）
Button function
NO Symbol Name Function
1 On/off
Press this button can start up or shut down the unit,
cancel the current operation or back to the upper
interface
2
MODE
SET
Mode
Press this button can switch modes or save
parameter setting.
3 Clock Press this button can set the clock and timer
4 Up
Press this button can move up or increase
parameter value.
5
Down
Press this button can move down or decrease the
parameter value.
VOL C
A