Specifications

-
75
-
ON
OFF
OFF
0
4
8
ON
OFF
OFF
0
8
OFF
OFF
0
8
ON
OFF
OFF
0
3
8
(c) DRY operation
After finishing start up operation described in (b) above, thermal dry operation is performed at 8 minutes intervals, according
to the difference between room temperature and thermostat setting temperature as shown below.
Beside, 1 cycle of this operating time consists of 8 minutes, 7 cycle operation is performed then.
Compressor
and
outdoor fan
Indoor fan
D Block
Compressor
and
outdoor fan
Indoor fan
C Block
Compressor
and
outdoor fan
Indoor fan
B Block
Compressor
and
outdoor fan
Indoor fan
A Block
20 seconds
20 seconds
minutes
minutes
Start
Temperature check
Start
Temperature check
Operation block decision
20 seconds
minutes
minutes
Start
Temperature check Temperature check
Operation block decision
Start
Speed 1
Speed 1
Speed 1
Speed 1
(11) Dew condensation prevention control for cooling operation
This prevents dew condensation, in the indoor unit, from occurring.
(a) Operating condition: when 52C is kept ON for 30 min. after the unit starts operation.
(b) Operation content: forces the indoor fan to change from Speed 1 to Speed 2.
(c) Resetting condition: When 52C is off, or when dew condensation prevention control has been operating continuously for
30 minutes.
(12) Frost prevention for indoor heat exchanger [Preventing frost accumulation on the indoor heat exchanger]
During the Cooling or Dry operation in low room air temp. condition, evaporating temperature will decrease and consequently
indoor heat exchanger sometimes gets clogged with frost (or ice).
In order to prevent this trouble, compressor is stopped by under mentioned condition by indoor heat exchanger sensor (Th
2) and
timer (built into micro computer circuit) functions.
Also indoor fan is changed over to speed 1.
CM, FMO stoppage condition
1 Temperature of heat exchanger is
2.5˚C or lower.
2 As least 10 minutes has passed
since the compressor started.
Indoor heat exchanger
temperature (˚C)
CM, FMO re-starting condition
1 Temperature of heat exchanger is
8˚C or higher.
2 As least 3 minutes has passed since
the compressor stopped.
Set fan
speed
speed 1