10.1 The heat pump should be installed and operated by qualified professionals. To
ensure the continued correct functioning of the system it is recommended that it
should be checked and maintenance should be carried out at regular. During
maintenance, please pay attention to the points below:
●Check that all parameters are normal during system operation.
●Check for loose electrical connections and fix if necessary.
●Check electrical components and replace if necessary.
●After prolonged use, there may be calcium or other mineral substances deposited on the surface of
the heat exchanger copper coil. This could affect the performance of heat exchanger and lead to
higher than normal electrical consumption, increased discharge pressure and reduced suction
pressure. Formic acid, citric acid, acetic acid or other organic acid can be used to clean the coil.
●Any dirt accumulated on the surface of the evaporator fins should be blown away using a 0.6Mpa
air compressor, brushed by fine copper wire, or flushed with a high-pressurized water hose, usually
one time per month. If there is too much dirt, we can use a paintbrush dipped in gasoline to clean the
evaporator.
●After restarting the unit following a long period of inactivity, please do the following: examine and
clean the equipment carefully, clean the water pipe system, check the water pump and fasten all the
wire connections.
●Always use original replacement parts.
10.2 Refrigerant
Check the refrigerant filling condition by reading the data of the liquid level from the display screen,
and also by checking the air suction and exhaust pressure. If there is a leakage or any components
of the refrigeration circulation system have been changed, it is necessary to check the air tightness
before anything else.
10.3 Leak detection and air tightness testing
During leak detection and air tightness experiment, never allow oxygen, ethane or other harmful
flammable gases to enter the system: only compressed air, fluoride or refrigerant can be used for
such a test.
10. Operation and maintenance
To Next Page
Loading...