EAS Electric ETH080VMR, Инструкция по установке и эксплуатации

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74
ERROR
CODE
MALFUNCTION
OR PROTECTION
FAILURE CAUSE
AND CORRECTIVE ACTION
The outside ambient temperature is too high(higher than 30°C,
the unit still operate heat mode. close the heat mode when the
ambient temperature is higher than 30°C.
The condenser refrigerant
outlet temperature is too high
in heating mode for more than
10 minutes.
Contact your local dealer
PFC module fault
Refer to P0
Low pressure protection
（
Pe<0.6
）
occured 3 times
in an hour
Refer to H6
H6 displayed 10 times in 2
hours
1. The EEprom parameter is error, rewrite the EEprom data.
2. EEprom chip part is broken, change a new EEprom chip
part.
3. Main PCB is broken, change a new PCB.
The main control board PCB
B EEprom failure
1. System is lack of refrigerant volume. Charge the refrigerant
in right volume.
2.When at heating mode or heat water mode, Heat exchanger
is dirty or something is block on the surface. Clean the heat
exchanger or remove the obstruction.
3. The water flow is low in cooling mode.
4. Electrical expansion valve locked or winding connector is
loosen. Tap-tap the valve body and plug in/ plug off the
connector for several times to make sure the valve is working
correctly. And install the winding in the right location.
Low pressure protection
1.The same reason to P1.
2. Power supply voltage of the unit is low, increase the power
voltage to the required range.
Compressor overcurrent
protection.
Heating mode, DHW mode:
1. The water flow is low; water temp is high, whether there is
air in the water system. Release the air.
2. Water pressure is lower than 0.1Mpa, charge the water to let
the pressure in the range of 0.15~0.2Mpa.
3. Over charge the refrigerant volume. Recharge the refrigerant
in right volume.
4. Electrical expansion valve locked or winding connector is
loosen. Tap-tap the valve body and plug in/ plug off the
connector for several times to make sure the valve is working
correctly. And install the winding in the right location DHW
mode: Water tank heat exchanger is smaller than the required
1.7m2.(10-16kW unit)or 1.4m2(5-9kW unit) Cooling mode:
1.Heat exchanger cover is not removed. Remove it.
2. Heat exchanger is dirty or something is block on the surface.
Clean the heat exchanger or remove the obstruction.
High pressure protection
V.1