21
COOL operation
Four-way valve/OFF
NO
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
Compressor
thermostat
ON
Allowance
cancel
3-minute
time delay
6-minute
time delay
3-minute
compressor
operation
Coil frost
prevention
Cooling area
10-minute
compressor
operation
Allowance cancel
Coil frost
protection
16-minute
compressor
operation
Indoor pipe
temperature is
1
°
C or lower
Compressor ON
1
Coil frost
prevention
Compressor OFF
Indoor coil
temperature is
10
°
C or higher
3-minute
time delay
Coil frost
prevention release
Aliowance
period
6 minute
time delay
Allowance set
1 min.continue
Coil frost protection
FAN speed
LOW
FAN speed
LOW 5 min.
elapse
Outdoor unit
trouble
w
9
w
10
w
11
COOLING OPERATION
w
8 When operating TEST RUN, the thermostat will be continuously ON.
w
9 After 3 minute compressor operation, if the indoor coil thermistor reads -15
:
or below for 3 minutes, the compressor will
stop for 6 minutes.
w
10Cooling 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.