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(1) Compressor control
1
3-minute time delay
To prevent overload, the compressor will not start within 3, minutes after stop.
2
The compressor runs when the room temperature is lower than the set temperature.
The compressor stops when the room temperature is equal to or higher than the set temperature.
3
The compressor stops in check mode or during protective functions.
4
Overheat protection
<Start condition>
When the indoor coil thermistor reads 70°C or above, the overheat protection will start.
<Overheat protection>
The compressor stops for 6 minutes, and then restarts.
If the start condition is satisfied again within 10 minutes of compressor operation, both the indoor and outdoor units stop,
displaying a check code of “P6” on the remote controller.
<Termination conditions>
Overheat protection is terminated when the start condition is not satisfied again during the allowance (10-minute compres-
sor operation), when operation mode changes to other mode, or when thermostat turns OFF.
(2) Indoor fan control
(a) Normal control
( i )The indoor fan runs on EXTRA-LOW speed during the thermostat OFF.
EXTRA-LOW speed can be changed to LOW or HIGH speed by setting the dipswitch SW1-7 and SW1-8.
If the indoor coil temperature becomes more than 5 degrees below the room temperature during the thermostat
OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 5 degrees of room tempera-
ture, the indoor fan will run on EXTRA-LOW speed.
( ii )Hot adjustment
Hot adjustment is a warm-up for HEAT operation
<Start conditions>
The hot adjustment works under any of the follwing conditions.
●
HEAT operation starts.
●
Defrosting ends.
●
Thermostat turns ON.
[Hot adjustment]
Initially, the indoor fan runs on EXTRA-LOW speed. When 5 minutes have passed or the indoor coil temperature
exceeds 35°C, the fan speed changes to LOW. Two minutes later, the hot adjustment ends. Then, the fan speed
depends on the remote controller setting.
(iii)The indoor fan stops when the indoor coil temperature is within 5 degrees either way of room temperature.
(iv)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF.
(b) Quiet cycle control
( i )Quiet cycle control in hot adjustment
1
HEAT operation starts.
2
lndoor coil temperature becomes 35°C or over,
or 5 minutes have passed.
3
2 minutes have passed.
4
Thermostat turns OFF.
5
Thermostat turns ON.
1
HEAT operation starts.
2
lndoor coil temperature becomes 35°C or over,
or 5 minutes have passed.
3
2 minutes have passed.
4
Defrosting starts.
5
Defrosting has ended.
●
The indoor fan runs on EXTRA-LOW speed at the start-up of HEAT operation.
●
The indoor fan runs at a minimum air flow amount afaer defrosting.
●
When the indoor coil temperature becomes 35°C or over during the quiet cycle control,the indoor fan speed will
change to LOW speed.
Set speed
Set speed
Low
Low
Extra-
Low
Extra-
Low
2
5
4
3
2
1
OFF
<Heating starts and thermostat returns ON>
Set speed
Set speed
Low
Low
Extra-
Low
Extra-
Low
2
4
3
2
1
3
OFF
<Heating starts and defrosting has ended. >
Содержание PLH Series
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