Nulite NE-C3BZ-B2F - Electrical Wiring Diagrams

17
3
E02
Water flow protection
4
E21
Exhaust temperature too high
protection
5
E03
EEPROM error indication (indoor
main control board) / EEPROM error
indication (wired controller)
6
E25
Evaporator coil temperature too
high protection
7
E04
Heating supply return water
temperature too high protection or
cooling water temperature too low
protection，
8
E31
System high pressure switch
disconnected protection
9
E05
DC bus voltage is too high / too low
protection
10
E32
Communication failure between
wired controller and indoor unit
main board
11
E06
IPM (module board) fault protection
12
E33
communication failure between
Outdoor board and IPM (module
board)
13
E07
DC fan stall failure protection
14
E41
System low pressure switch
disconnected protection
15
E08
Temperature difference between
inlet &outlet water too large
protection
16
E45
Return gas temperature sensor
failure
17
E10
Return water temperature sensor
failure
18
E46
Refrigeration tube temperature
sensor failure
19
E11
Outlet water temperature sensor
failure
20
E48
Antifreeze switch
disconnectedfailure
21
E12
Water tank temperature sensor
failure
22
E49
Enhanced Vapor temperature
sensor failure
23
E13
Outdoor ambient temperature
sensor failure
24
E14
Evaporator coil temperature sensor
failure