P4:
Compressor
discharged
temperature
protection
When the discharged temperature of the compressor is higher than 115°C, the unit will stop running. When the
discharged temperature of the compressor is lower than 83°C , the unit resumes normal operation automatically.
LED displays P4
Discharged temperature protection of the compressor
Check whether the discharged temperature of the compressor is higher than 115°C.
NO
Check whether the compressor discharged
temperature sensor connects with PCB correctly
according to the wiring diagram.
YES
Check whether resistance of compressor discharged
temperature sensor is correct or not .
NO
Connect correctly again.
YES
Replace outdoor main PCB
Whether the discharged temperature sensor is damaged or not.
NO
Replace compressor discharged
temperature sensor.
Check refrigerant leaks or not.
Stop leaking and then add the refrigerant again.
YES
YES
80
Содержание SCV-100EA
Страница 1: ...SCV xxEA SERVICE MANUAL AIR COOLED MINI CHILLER UNIT AIR CONDITIONING...
Страница 16: ...7 Wiring Diagram SCV 50EA SCV 70EA 14...
Страница 17: ...SCV 100EA 15...
Страница 18: ...SCV 120EA SCV 140EA SCV 160EA 16...
Страница 28: ...11 Water Pressure Drop SCV 50EA SCV 70EA SCV 100EA Heat exchanger pressure drop water side 26...
Страница 29: ...SCV 120EA SCV 140EA 27...
Страница 30: ...SCV 160EA 28...
Страница 46: ...t e s 1 2 3 3 To access the control panel open the door remove the screw 1 and screw 2 lift the door 3 44...
Страница 88: ...18 Optional Accessories No Name Specification Remark 1 Wired controller KJR 120F Customized 86...
Страница 91: ...Exploded view of unit SCV 50EA 22 7 22 6 22 5 22 4 22 2 22 1 22 3 89...
Страница 94: ...Exploded view of unit SCV 70EA 22 7 22 6 22 5 22 4 22 2 22 1 22 3 92...
Страница 97: ...Exploded view of unit SCV 100EA 25 1 25 2 25 3 25 6 25 7 25 4 25 5 25 9 25 8 95...
Страница 100: ...Exploded view of unit SCV 120EA 25 1 25 2 25 3 25 4 25 5 25 6 25 7 25 9 25 8 25 10 25 11 98...
Страница 103: ...Exploded view of unit SCV 140EA 25 1 25 2 25 3 25 4 25 5 25 6 25 7 25 9 25 8 25 10 25 11 101...
Страница 106: ...Exploded view of unit SCV 160EA 25 1 25 2 25 3 25 4 25 5 25 6 25 7 25 9 25 8 25 10 25 11 104...