Outline Of Dehumidifying Operation - Mitsubishi Heavy Industries SRK20ZD-S1 Technical Manual

(9) Outline of dehumidifying operation

(a) Choose the appropriate operation block area by the difference between room temperature and thermostat
setting temperature as shown below.
¡ Operation block area
D Block
Room temp. – Setting temp.(deg)
(b) Start up operation
C.D Block
Compressor
ON
and
OFF
outdoor fan
Speed 3
Speed 1
Indoor fan
OFF
0
Start
Note (1) Thermostat operation is performed in A, B Block. When compressor and indoor fan stop by thermostat operation within 12 minutes from start, temperature
check is performed by operating indoor fan at speed 1 for 20 seconds before finishing 12 minutes and allowing decision of next operation block.
(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.
D Block
Compressor
ON
and
OFF
outdoor fan
Speed 1
Indoor fan
OFF
0
Start
B Block
Compressor
ON
and
OFF
outdoor fan
Speed 3
Speed 1
Indoor fan
OFF
0
Start
(d) ECONOMY operation ( "ECONO" button on the remote controller : ON)
The set temperature changes as shown at right, and the
indoor unit fan speed is set on speed 3 .
C Block B Block
–2 0 +3
3 6 9 12
Temperature check
4 8
Temperature check
4 8
Temperature check
A Block
Compressor
ON
and
OFF
outdoor fan
Set fan speed
Indoor fan
OFF
20
seconds
minutes
Start
Operation block decision
Compressor
ON
and
OFF
outdoor fan
Speed 3
Speed 1
Indoor fan
OFF
20
seconds
minutes
Start
Operation block decision
Compressor
ON
and
OFF
outdoor fan
Speed 3
Indoor fan
OFF
20
seconds
minutes
Start
Operation block decision
Running time
Running start ~ 1 hour
1~2 hours
2 hours ~
191
- -
A.B Block
0
Temperature check
C Block
0 3
Temperature check
A Block
0
Temperature check
Set temperature compensation
Set temperature +0.5
Set temperature +1.0
Set temperature +1.5
12
minutes
20
seconds
8
minutes
8
minutes