Mitsubishi PKH-1.6GKLH Technical & Service Manual page 19

HEATING OPERATION
Heat operation
15
NO
initial
HEATING
YES
Vane setting notch
Vane initial setting
NO
YES
defrosting
NO
Four-way valve ON
YES
Hot adjust
in process
NO
YES
Compressor ON
NO
YES
Compressor
9
thermostat ON
NO
Allowance cancel
YES
YES
NO
Indoor piping
-15°C or lower
YES 2
Outdoor unit
trouble
FAN SPEED
Very low airflow
Compressor OFF
1
AUTOMATIC COOLING/HEATING OPERATION
Auto COOL/HEAT
operation
16
NO
Initial mode
YES
17
NO
> =
T1 To
YES
COOL mode
NO
COOL mode
YES
NO
T1 (To - 2)
YES
YES
After 15min.
T1 (To-2)
NO
COOL operation
w1 ( i ) Until Low airflow is set while in hot adjustment.
( ii ) While defrosting (FAN STOP).
(iii) When thermostat is OFF.
In the case of ( i ), ( ii) and (iii) above, airflow is horizontal regardless the VANE setting.
w16 When AUTO operation is started, COOL or HEAT mode is selected automatically.
w17 T1 : Room temperature.
To : Set temperature.
OC229A
10-minute
NO
compressor
operation
YES
Allowance cancel
3 min.restart
prevention
11
YES
Heating
NO
area
NO
6 min. restart
prevention
FAN STOP
NO
11
YES
FAN area
20 min.elaspe
NO
10
YES
Hot adjust start
FAN area
Heating area
NO
FAN SPEED very low
11
NO
FAN area
Cooling area
Compressor ON
YES
Defrost operation
START
Four-way valve
OFF
HEAT mode
NO
T1 (To + 2)
YES
After 15min.
T1 (To + 2)
NO
HEAT operation HEAT operation
1
11
YES
Heating area
NO
Defrost release
Defrost NO
30 min. elapse
2
YES
Outdoor unit trouble
1
B
YES
Indoor piping
55°C or lower
NO
NO
Auxiliary heater
NO
A
ON
YES
NO
Indoor piping
Auxiliary heater ON
60°C or higher
YES
Auxiliary heater OFF
Overheat remote
Outdoor unit
trouble START
NO
Indoor unit
70°C or higher
YES
NO
Allowance
period
YES
Overload protect
1
YES
Cool mode
set
1
19 19
A
PKH-GKLH
Type
3-minute
Auxiliary heater
OFF
Pipe temperature
is 60°C or higher
FAN speed
Low notch
Airflow 10% up
YES
Indoor piping
35°C or higher
B
NO
NO
HOT adjust
5 min. elapse
YES
FAN SPEED
Auxiliary heater
Low
thermostat ON
NO
YES
FAN SPEED
Low 2 min.
elapse
YES
FAN SPEED
setting notch
Hot adjust
release
6-minute restart
prevention
Allowance set
Compressor OFF
NO
YES
NO
YES
NO
YES
NO
YES
FAN setting notch