8
Evo Control 17 & 25 Manual
4.6 Transit
If the unit needs to be hung up during installation, an 8-metre cable is required. There must be a soft material
between the cable and the unit to prevent damage to the heat pump cabinet
WARNING: Do not touch the heat exchanger of the unit with fingers or objects.
4.7 Trial Operation
INSPECTION BEFORE TRIAL OPERATION:
•
Check the indoor unit, make sure that the pipe connection is done correctly, and the relevant valves are open.
•
Check the water loop to ensure that the water inside of the expansion tank is filled to an appropriate level, and
the water supply is working, and the water loop is full of water and free of trapped air. Make sure there is good
insulation for the water pipe.
•
Check the electrical wiring. Make sure that the power voltage is normal, the screws are fastened, the wiring is
made in line with the diagram and that the earthing is connected.
•
Check that the heat pump includes all the screws and components, and that they are in good order. When
powering the unit on, review the indicator on the controller to see if there is any indication of failure. The gas
gauge can be connected to the check valve to see the high pressure (or low pressure) of the system during trial
running.
TRIAL OPERATION:
•
Start the heat pump by pressing the ‘UP’ or ‘DOWN’ arrow key on the controller.
Check whether the water pump is running, if it runs normally there will be 0.2MPa
on the water pressure meter.
•
When the water pump has ran for a minute, the compressor will start. Listen for
any strange sounds from the compressor, if an abnormal sound occurs please stop the unit and check the
compressor. If the compressor runs well please look for the pressure meter of the refrigerant.
•
Check whether the power input and running current is in line with the manual. If not please stop and check.
•
Adjust the valved on the water loop to make sure that the hot (cool) water supply to each door is good and
meets the requirements of heating (or cooling).
•
Review whether the outlet water temperature is stable.
•
The parameters of the controller are set by the factory, the user cannot change these themselves.