Johnson JR8V Serie Manual De Instrucciones página 73

Table 7.4 Installation and debugging error code
Error code
U11 Outdoor unit type setting error
U12 Capacity setting error
U21 The system contains the 1st generation indoor unit or the indoor units address are repeated
U22 Only hydraulic module available for system IDUs
U23 Common IDU and constant temperature and humidity modular AHU in the system
U24 Common IDU and reheat type fresh air modular AHU in the system
U25 Non-common IDU in the system
U26 IDU and ODU mismatch
U31 No test run or unsuccessful test run, please re-enter the test run
U32 Outdoor temperature out of operating range
U33 Indoor temperature out of operating range
U34 Outdoor and indoor temperature out of operating range
U35 Liquid side stop valve is not opened
U37 Gas side stop valve is not opened
U38 No address
U3A The communication cable is connected incorrectly
U3b The installation environment is abnormal
U3C Auto mode error
U41 Common indoor unit exceeds the allowable connection range
U42 Fresh Air Processing indoor unit exceeds the allowable connection range
U43 AHU kit (discharge air temperature control) is out of the allowable connection range
U44 AHU kit (return air temperature control) is out of the allowable connection range
Constant temperature and humidity modular AHU (with outlet air temperature control)
U45
combination ratio out of range
Reheat type fresh air modular AHU (with outlet air temperature control) combination ratio out
U46
of range
U48 The total capacity of the indoor unit is out of the allowable connection range
U51 Detected more than one outdoor unit in the individual VRF system
U53 Detected different series outdoor units in the same VRF system
U54 Number of MS on heat pump ODU ≥ 1
Table 7.5 Compressor driver error code
Error code
xL01 xL1* or xL2* error occurs 3 times in 60 minutes
xL11 Software overcurrent
xL12 Software overcurrent protection lasting 30s
xL1E Hardware overcurrent
xL2E Module overtemperature protection
xL33 Bus voltage drop fault
xL43 The current sampling bias is abnormal
xL45
Motor code mismatch
xL46 IPM protection (FO)
xL47 Module type mismatch
xL4E EEPROM error
xL51 Out-of-step error
xL52 Locked-rotor protection
xL5E Startup failed
xL65 IPM short circuit
xL66
FCT test fault
Motor phase loss protection
xL6E
xL71 U-phase upper driver open circuit
xL76 W-phase lower driver open circuit
xLB7 Other check exceptions
xLBE
High voltage switch operation
xLBF Software certification module failure
Note: 'x' is a placeholder for the compressor address, with 1 representing compressor A and 2 representing compressor B.
Error description
Error description
07
Manual restart
required
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Manual restart
required
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
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