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Installation
8 Transit
When the unit need to be hung up during installation, a 8
meters cable is needed, and there must be soft material
between the cable and the unit to prevent damage to the
heat pump cabinet. (See picture 1)
DO NOT touch the heat exchanger of the heat pump with fingers or other objects！
9 Trial Running
Inspection before trial running
Check the indoor unit, and make sure that the pipe connection is right and the relevant valves
are open .
Check the water loop, to ensure that the water inside of the expansion tank is enough, the water
supply is good, the water loop is full of water and without any air. Also 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 the earthing is connected.
Check the heat pump unit including all of the screws and parts of the heat pump to see if they
are in good order. When power on, review the indicator on the controller to see if there is any
failure indication. 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 running
Start the heat pump by press "
running, if it runs normally there will be 0.2 MPa on the water pressure meter.
When the water pump runs for 1 minutes, the compressor will start. Hear whether there is
strange sound from the compressor. If 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.
Then check whether the power input and running current is in line with the manual. If not
please stop and check.
Adjust the valves on the water loop, to make sure that the hot(cool) water supply to each door
is good and meet the requirement of heating(or cooling).
Review whether the outlet water temperature is stable.
The parameters of the controller are set by the factory, it is not allowed to change then by
user himself.
WARNING
" key on the controller. Check whether the water pump is
12
Picture 1
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