Mitsubishi Electric Mr.SLIM PEH Series Technical & Service Manual page 31

2-4 AUTO operation (Automatic COOL/HEAT change over operation)
(1) Initial mode
1 When AUTO operation starts after unit OFF.
If the room temperature is higher than the set temperature, operation starts in COOL mode.
If the room temperature is equal to or lower than the set temperature, operation starts HEAT mode.
2 When AUTO operation starts after COOL or HEAT operation, the previous mode continues.
(2) Mode change
1 HEAT mode changes to cool mode when 15 minutes have passed since the room temperature became 2 degrees
above the set temperature.
2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 2 degrees
below the set temperature.
To:Set temperature (19 28
(degree)
To + 2
To + 1
To
To - 1
To - 2
Start
ON
Compressor
OFF
(3) Temperature range
AUTO operation is available under the outside air temperatures as follows.
-9
-5
-8.5
FILTER
CHECK MODE
TEST RUN
When room temperature becomes2degrees above the set temperature,the operation mode can not be changed
)
for 15 minutes.
15 minutes
Minimum 3 minutes
HEAT mode
0 10
Cooling range
Heating range
<How to operate>
1 Press POWER ON/OFF button.
2 Press the
3 Press the
TEMP button to set the desired temperature.
NOTE: The set temperature changes 1°C when the
button is pressed one time.
Automatic 19 to 28°C
"AUTOMATIC" works to change by itself the operation
mode either to cooling or heating according to the room
temperature.
1Mode change (HEAT
15 minutes
COOL mode
Minimum 3 minutes
20 30 40
button to display " "
COOL)
2Mode change
(COOL
HEAT mode
46 (Outside air temperature)
or
HEAT)
31