Energie FF Evi 10, Installation And Instruction Manual

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ENERGIE Page | 42
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Look over and clear the failure according to below information.
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.