Mitsubishi PKH-1.6GKLH Technical & Service Manual page 22

2. INDOOR UNIT CONTROL
2-1 COOL operation
ADDRESS
UNIT No.
FUNCTION No.
°C
SELECTION No.
AM
PM
FUNCTION
AM
TEST RUN
PM
CHECK
TEMP.
ON/OFF
<COOL operation time chart>
Thermostat
Indoor fan
Auto vane
Booster heater
Compressor
W1 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this period
has ended.
(1) Compressor control
1 -minute time delay
To prevent overload, the compressor will not start within  minutes after stop.
2 The compressor runs when room temperature is higher than set temperature.
The compressor stops when room temperature is equal to or lower than the set temperature.
The compressor maintains the previous state when the discharge temperature minus the set temperature is 0°C or more, or
lower than 1°C.
3 The compressor stops in check mode or during protective functions.
4 Coil frost prevention
To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1°C or below after the
compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to 10°
C or above, the compressor will start in a -minute(w2) time delay.
w2 When the indoor coil temperature is -1°C or less, the compressor starts in 6 minutes.
NOTE : By turning OFF the dip switch SW1- on indoor controller board, the start temperature of coil frost prevention changes
from 1°C to -°C.
OC229A
<How to operate>
1 Press POWER ON/OFF button.
2 Press the MODE button to display " f ".
3 Press the
Operation starts by
P O W E R b u t t o n
ON.
ON
OFF
LOW or HIGH
ON
OFF
Initally 10 degrees
(Changeable by remote controller setting)
CLOSE
ON
OFF
OFF
ON
OFF
i
TEMP. button to set the desired temperature.
NOTE: The set temperature changes 1°C when the
button is press one time Cooling 19 to 0°C.
Room temperature Room temperature
becomes equal to rises above set
set temperature. temperature.
LOW or HIGH
Minimum 3 minutes 1
22
or
Operation stops by
P O W E R b u t t o n
OFF.
CLOSE