Electrical Installation; Starting Up The Unit - Gullberg & Jansson P15 Installationshandbuch

Electrical installation

The electrical connection is made to the pool heat pump's
junction box located behind the front panel. A working
switch (with or without a fuse) must be connected and be
positioned fully visible next to the unit. The working switch
protects against unintentional starting, for example, when
servicing the unit. Even if the heat exchanger is electrical
isolated from the remainder of the system and separates the
pool water from the electricity, the unit must be connected
to earth to provide satisfactory short-circuit protection.
There is an additional connection on the terminal block, 1
and 2 (To Pump). This connection can be used if you wish to
connect a separate circulation pump to the pool heat pump.
See the wiring diagram in section 5 for more detailed
information about the electrical connection.

Starting up the unit

In order to heat the pool or spa water, the pool's circulation
pump must start and water needs to circulate through the
heat exchanger. The following procedure should be followed
when starting the pool heat pump for the first time:
1. Start the pool's circulation pump. Check for any leakage
and that there is a flow to and from the pool.
2. Switch on the supply voltage, press ON/OFF on the
display, the unit should start after a few seconds.
3. After a few minutes, check that the exhaust air is colder
than the outdoor air temperature (5-10 ºC).
4. Stop the pool's circulation pump and make sure that the
pool heat pump stops automatically.
5. Let the system run around the clock until the required
temperature is reached. The pool heat pump will know
when the temperature has been reached, but will not
switch off until the required temperature has been
exceeded by 1º. The pool heat pump will then start again
when the temperature in the pool drops by 1º below the
required temperature.
Flow switch: The pool heat pump is equipped with a flow
switch that prevents starting in the event of insufficient water
flow.
Time delay: The unit is equipped with an approximate 1
minute start delay to prevent repeated restarts and contactor
wear. Even a brief power failure activates the start delay of 1
minute.
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Installation