25
High pressure
protection
EE 01
1) Water flow is too low when
unit is heating water, or water
temp is too high
2) Ambient temp is too high
when unit is cooling water or
outdoor fan’s ventilation is
bad
3) Too much refrigerant
4)Pressure switch failure
5) Outdoor Unit PCB damaged
1) Check whether water flow fit
requirement, check whether
plate heat exchanger inlet water
temp is too high
2) Check unit ventilation
3)
Purge surplus refrigerant
4)Replace pressure switch
5) Replace
Outdoor Unit PCB
Low pressure
protection
EE 02
1) Too less refrigerant
2)The electronic expansion
valve assembly damaged
3) Pressure switch failure
4) Outdoor Unit PCB damaged
1) Check leakage and charge
more refrigerant
2) Replace electronic expansion
valve and expansion valve coil
3)
Replace pressure switch
4)
Replace
Outdoor Unit PCB
Water flow
protection
EE 03
1) Water pump damaged or
water pump wiring damaged
2) Water pump gear failure
3)Water filter block
4) Water flow switch damaged
5) Main PCB damaged
1) Replace water pump or repair
water wiring
2) Adjust right water pump gear
3)Clear water filter
4) Replace water flow switch
5) Replace main PCB
Defrost
Defrosting
indicate
Содержание SDAW4.6-220
Страница 4: ...3 Cycle diagram The whole cycle diagram is shown below...
Страница 8: ...7 OVERVIEW OF THE UNIT External view SDAW3 5 220...
Страница 9: ...8 OVERVIEW OF THE UNIT External view SDAW4 6 220 SDAW6 7 220...
Страница 17: ...16 WIRING DIRGRAM...