GRE HPM20 Manuel D'instructions page 25

Attention:
Ensure the power plug is secure
If the plug is not secure, it may cause
an electric shock, over-heating or
fire
After all connections have been made and checked, carry out the following procedure:
1. Switch on the filter pump. Check for leaks and verify that water is flowing from and to the swimming pool.
2. Connect power to the heat pump and press the On/Off button
unit will start up after the time delay expires (see below).
3. After a few minutes, check whether the air blowing out of the unit iscooler.
4. When the filter pump is turned off, the unit should also turn off automatically.
5. Allow the heat pump and the filter pump to run 24 hours a day until the desired water temperature is
reached. The heat pump will stop running at this point +1ºC. After this, it will restart automatically (as long
as the filter pump is running) whenever the swimming pool water temperature drops 1 degree below the set
temperature (for example, if you sent the temperature 28 ºC, the heat pump will stop when the
temperature at 29ºC. While it will restart when the temperature of the water down to 27ºC).
Depending on the initial temperature of the water in the swimming pool and the air temperature, it may take
several days to heat the water to the desired temperature. A good swimming pool cover can dramatically
reduce the required length of time.
Time delay - The heat pump has a built-in 3-minute start-up delay to protect the circuitry and avoid excessive
electrical contactor wear. The unit will restart automatically after this time delay expires. Even a brief power
interruption will trigger this time delay and prevent the unit from restarting immediately. Additional power
interruptions during this delay period do not affect the 3-minute duration of the delay.
Never pull out the power plug during
operation
Otherwise, it may cause an electric
shock or a fire due to over-heating.
22
Never use damaged electric wires
or unspecified electric wires.
Otherwise it may cause an electric
shock or a fire.
on the electronic control panel. The