5.
Replace the low pressure
switch.
E0X-14
RESERVED
E0X-15
POWER SUPPLY PROTECTOR
ERROR
The wrong phase sequence or
incorrect phase of the power
supply.
Inspect the power supply system.
E0X-16
COMPRESSOR OVERLOAD
PROTECTION
1.
Loose wiring of the overload
protection relay.
2.
Higher compressor current.
3.
Bad
overload
protection
relay.
1.
Inspect the wiring and fix.
2.
Inspect
the
compressor
wiring.
3.
Replace the relay.
E0X-17
DISCHARGE TEMPERATURE
OVERHEAT
1.
Refrigerant leakage.
2.
Non-condensing gas in the
refrigerant system.
3.
Inproper installation of the
temperature sensor.
1.
Perform the leakage
detection and recharge the
refrigerant.
2.
Vacuum the system and
recharge the refrigerant.
3.
Inspec the sensor
installation.
E0X-18
RESERVED
E0X-19
OUTLET WATER TEMPERATURE
OVERHEAT
1.
Low water flow rate.
2.
Dirty water filter.
3.
Scalling condenser.
1.
Inspect the water piping and
the pump selection.
2.
Clean the water filter.
3.
Clean the condenser.
E0X-20
ABNORMAL HEATING ALARM
1.
Improper installation of the
water temperature
sensors.Improper
installation of the water
temperature sensors.
2.
The four way reversing valve
is not in heating status.
1.
Inspect
all
the
water
temperature
sensor
installation (on each heat
pump unit and on the tank).
2.
Power on and power off the
four way reversing valve for
a few times.
E0X-21
AMBIENT TEMPERATURE OUT OF
RANGE
1.
The actual ambient
temperature is out of
-10-48
o
C.
2.
Bad ambient temperature
sensor.
1.
Measure the actual ambient
temperature by other
temperature meters.
2.
Replace the ambient
temperature sensor.
E0X-22
EVAPORATOR DIRTY ALARM
The evaporator coil is dirty.
Clean the evaporator coil.
E0X-23
EVAPORATOR BLOCK ALARM
The evaporator coil is very dirty.
12.2.
Other Phenomena – Normal
Phenomena
Possible Reason
Solutions
N
O
T
E
R
R
O
R
The tank temperature is
lower than the setting point
when heat pump units stop.
This is normal since the heat
pump will stop for protection if
the condensing pressure is too
high.
Install the auxillary heaters to
heat the water to desired
temperature if a higher water
temperature is requested.
Heat pump units stop under
low ambient temperature.
This is normal phenomeno. The
heat pump units will stop and
enter the defrosting cycle to
No actions needed.
Содержание CAHP-MC-38
Страница 1: ...INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS AIR TO WATER HEAT PUMP WATER HEATER CAHP MC 38 ...
Страница 6: ...2 Physical Dimensions Picture 2 1 Unit Dimensions ...
Страница 13: ...Picture 5 4b ...
Страница 14: ...Picture 5 4c ...
Страница 55: ...9 Appendix 12 4 Heat Pump Unit Wiring Diagram Picture 9 1 Heat Pump Unit Wiring Diagram ...
Страница 57: ...Picture 9 3 Incorrect Communication Cable Wiring ...