McQuay 5MDS, Руководство по обслуживанию

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MCQUAY Service Guide Book Diagnosis
61
Multi Split Inverter – Y Outdoor Unit
Model Board
M5MSY 20/25/30 BR -
The outdoor unit LED indicates the running condition of the system:
LED INDICATION
Description Green Red
A 1 2 3 4
● ● ● ● NORMAL
INSTALLATION ERROR
ANTIFREEZE (OTHER ROOMS)
● ● ● ○ HEAT SINK OVERHEAT
● ● ○ ●
IPM ERROR / IGBT ERROR
● ● ○ ○ INSUFFICIENT GAS
● ○ ● ○
AC INPUT OVER CURRENT
● ○ ○ ●
COMPRESSOR STMRT-UP ERROR
● ○ ○ ○ COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND IPM PCB)
○ ● ● ●
4 WAY VALVE ERROR
○ ● ● ○ DC VOLTAGE OUT OF RANGE
○ ● ○ ●
COMPRESSOR MOTOR LOCK / COMPRESSOR OVERLOADED
○ ● ○ ●
DISCHARGE PIPE OVERHEAT
○ ● ○ ○
ANTIFREEZE (COOLING) / HEAT EXCHANGER OVERHEAT (HEATING)
HEAT EXCHANGER OVERHEAT
○ ○ ● ●
COMPRESSOR SENSOR SYSTEM ERROR
COMPRESSOR FEEDBACK DETECTION ERROR
AC CURRENT SENSOR ERROR
OUTDOOR AIR THERMISTOR SHORT/OPEN
COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT / OPEN /
MISPLACED
OUTDOOR HEAT EXCHANGER THERMISTOR SHORT/ OPEN
LIQUID PIPE THERMISTOR SHORT/ OPEN
GAS PIPE THERMISTOR SHORT/OPEN
HEAT SINK THERMISTOR SHORT / OPEN
○ ○ ● ○
OUTDOOR CONTROL BOX OVERHEAT
○ ○ ○ ● OUTDOOR PCB ERROR
○ ○ ○ ○ OUTDOOR DC FAN MOTOR LOCK
Blinks
●
Off
○
On