Energie INVERTER 4/12, Installation And Instruction Manual

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ENERGIE Page | 49
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Failure
Possible causes for the
failure
Solutions
Heat pump cannot be
started
1 Wrong power supply
2 power supply cable loose
3 circuit breaker open
1 shut off the power and check
power supply;
2 check power cable and make
right connection
3 check for the cause and replace
the fuse or circuit breaker
Water pump is running
with high noise or without
water
1 lack of water in the piping
2 much air in the water loop
3 water valves closed
4 dirt and block on the water
filter
1 check the water supply and
charge water to the piping;
2 discharge the air in the water
loop;
3 open the valves in water loop;
4 clean the water filter.
Heat pump capacity is
low, compressor do not
stop
1 lack of refrigerant;
2 bad insulation on water pipe;
3 low heat exchange rate on air
side exchanger;
4 lack of water flow
1 check for the gas leakage and
recharge the refrigerant;
2 make good insulation on water
pipe;
3 clean the air side heat
exchanger;
4 clean the water filter
High compressor
exhaust
1 too much refrigerant
2 low heat exchange rate on air
side exchanger 1 discharge the redundant gas
2 clean the air side heat
exchanger
Low pressure problem
of the system
1 lack of gas
2 block on filter or capillary
3 lack of water flow
1 check the gas leakage and
recharge Freon;
2 replace filter or capillary;
3 clean the water filter and
discharge the air in water loop.
Compressor do not run
1 power supply failure
2 compressor contactor broken
3 power cable loose
4 protection on compressor
5 wrong setting on return water
temp.
6 lack of water flow
1 check off the power supply;
2 replace compressor contactor;
3 tighten the power cable;
4 check the compressor exhaust
temp.
5 reset the return water temp.
6 clean the water filter and
discharge the air in water loop.
High noise of
compressor
1 liquid refrigerant goes into
compressor
2 compressor failure
1 bad evaporation, check the
cause for bad evaporation and get
rid of this;
2 use new compressor;
Fan do not run
1 failure on fan relay
2 fan motor broken 1 replace the fan relay;
2 replace fan motor.
The compressor runs but
heat pump has not
heating or cooling
capacity
1 no gas in the heat pump;
2 heat exchanger broken;
3 compressor failure.
1 check system leakage and
recharge refrigerant;
2 find out the cause and replace
the heat exchanger;
3 replace compressor.