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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 pipe temperature 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 dip switch SW1-5 and SW1-6.
If the pipe temperature becomes more than 5 degrees below the room temperature during the thermostat OFF, the
indoor fan will stop. After, when the pipe temperature becomes within 5 degrees of room temperature, 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 following 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 pipe temperature exceeds
35°C, the fan speed changes to LOW. 2 minutes later, the hot adjustment ends. Then, the fan speed depends on
the remote controller setting.
(iii)The indoor fan stops when the pipe 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.
(3) Auto vane control
Auto vane position is set to 70 degrees airflow at the start-up of HEAT operation.
(a) Vane position set mode & swing mode.
( i ) Every time button is pressed, setting will be changed .
( ii ) Airflow direction can be changed with button.
NOTE : In the following cases, the discharge direction is 30° regardless of the remote controller setting.
1
During the hot adjustment with fan speed at EXTRA-LOW
2
During defrosting with indoor fan OFF
3
During thermostat OFF
(4) Booster heater control (PLH-3AKH.UK, PLH-4AKHS.UK, PLH-5AKHS.UK, PLH-6AKHS.UK)
When the room temperature is 3 degrees below the set temperature, the booster heater will turn ON.
When the room temperature is equal to the set temperature, booster heater will turn OFF.
During the hot adjustment, the booster heater will not work.
<Overheat prevention>
When the pipe temperature thermistor rises to 60°C or above, the booster heater cannot work.
When the pipe temperature thermistor falls to 55°C or below, the booster heater can work.
30°
45°
55°
70°
SWING
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