McQuay M4MC Service Guide Book

37
Wall Mounted F Series Heat Pump Model
Model Board Handset
WM 10/15/20/25FR, 301R U1.5 G7
LED Indicator Light Display
LED Light Diagnosis Table
Operation / Faulty Indication
Cooling mode
Dry mode
Fan mode
Heating mode
Auto mode in heating operation
Auto mode in cooling operation
Defrost mode
Compressor overload protection
Indoor coil sensor contact loose
/ short
Outdoor coil sensor contact
loose / short
Room air sensor contact loose /
short
Gas leak
/
COOL
(Green)
HEAT / FAN
(Red / Green)
DRY
(Orange)
SLEEP
(Red)
/
/
/
/
/
ON
ON or OFF
BLINKING

McQuay M4MC Specifications

General

Brand	McQuay
Model	M4MC
Category	Air Conditioner
Language	English