Mitsubishi Electric Mr.SLIM PEH Series Technical & Service Manual page 21

COOLING OPERATION
COOL operation
Four-way valve/OFF
w9
Compressor
thermostat
ON
Allowance
w8 When operating TEST RUN, the thermostat will be continuously ON.
w9 After 3 minute compressor operation, if the indoor coil thermistor reads -15: or below for 3 minutes, the compressor will
stop for 6 minutes.
w10Cooling area : Indoor coil temperature is more than 5 degrees above the room temperature.
Heating area : Indoor coil temperature is more than 5 degrees below the room temperature.
FAN area : Indoor coil temperature is within 5 degrees either way of the room temperature.
NO
YES
NO
cancel
NO
3-minute
YES
time delay
NO
6-minute
YES
time delay
NO
3-minute
NO
compressor
operation
w10
YES
Coil frost YES
prevention
NO
w11
NO
Cooling area
YES
10-minute
NO
compressor
operation
YES
Allowance cancel
YES
Coil frost
protection
NO
16-minute
NO
compressor
operation
YES
Indoor pipe
YES
temperature is
1°C or lower
Coil frost
NO
prevention
Compressor ON Compressor OFF
1
YES
Aliowance
period
NO
6 minute
time delay
Allowance set
NO
1 min.continue
YES
FAN speed
LOW
FAN speed
LOW 5 min.
NO elapse
Indoor coil
temperature is
NO
10°C or higher
YES
3-minute
time delay
Coil frost
prevention release
Coil frost protection
YES
Outdoor unit
trouble
21