Relay Operation Msz09Un, Msz12Un; Solid State Relay (Indoor Fan Motor Relay) Msz12Un - Mitsubishi Electric Mr.Slim MSZ09UN Service Manual

RELAY OPERATION
MSZ09UN
MSZ12UN
MODE
THERMOSTAT
COOL &
ON
COOL mode
of I FEEL
OFF
CONTROL
ON
OFF
DRY &
DRY mode
ON
of I FEEL
CONTROL
OFF
ON
HEAT &
HEAT mode
OFF
of I FEEL
CONTROL
ON
OFF
COIL FROST PREVENTION
MODE
THERMOSTAT
ON
COOL mode
of I FEEL
CONTROL
OFF
DRY &
ON
DRY mode
of I FEEL
OFF
CONTROL
DEFROSTING
MODE
THERMOSTAT
HEAT &
HEAT mode
ON
of I FEEL
CONTROL
SOLID STATE RELAY (INDOOR FAN MOTOR RELAY)
MSZ12UN
Indoor fan speed
High
Med.
Low
Very Low
OFF
X64
INDOOR FAN SPEED
ON
AUTO or set speed
ON
ON AUTO(=Low) or set speed
ON
Very Low speed
ON
When the compressor operates.
AUTO(=Low) or set speed
When the compressor stops. OFF
ON
ON AUTO or set speed
ON
OFF or Very Low speed
ON AUTO or set speed
Very Low speed
ON
X64
INDOOR FAN SPEED
ON
AUTO or set speed
ON
ON
AUTO(=Low) or set speed
ON
X64
INDOOR FAN SPEED
ON
Relay turning ON
SR144
SR143
SR142
SR141
All fan relays are OFF.
MSZ09UN
MSZ12UN
When the compressor operates. ON
When the compressor stops. OFF
MSZ09UN
MSZ12UN
OFF
60
OUTDOOR FAN SPEED
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OUTDOOR FAN SPEED
OFF
OFF
OUTDOOR FAN SPEED
OFF