Mitsubishi FDT71VH User Manual

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39
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'20 • PAC-SM-351
(ii) Contents of operation
1) Air capacity control
Note (1) Ranges A and B are as shown below.
Model
Item
SRK 100ZR-W
Upper limit of compressor’s command speed
(1)
Range A: As per following table, Range B: 54 rps (SRK100: 40 rps)
Range A
63 68 78
Range B
Cancel
Humidity(%)
●
Condition for range A
Compressor’s command speed is controlled according to the indoor
unit heat exchanger temperature (Th2) and the indoor unit room
temperature (Th1).
Condition Compressor’s command speed
Th2
≦
Th1
‒
10
・
Decreases the compressor’s target max
speed by 4 rps.
・
If the condition is satisfied still 20 seconds
later, the speed is decreased further by 4 rps.
This process is repeated further so far as the
condition is satisfied.
〔
Lower limit is 30 rps
(SRK100: 20 rps).
〕
Th1
‒
10
＜
Th2
≦
Th1
‒
6
Compressor’s target max. speed or changed
value of the same is maintained.
Th1
‒
6
＜
Th2
Changed compressor’s target max. speed is
increased at a rate of 1 rps/20 seconds.
2) When this control has continued for more than 30 minutes continuously, the following wind direction control is
performed.
Whentheverticalwinddirectionissetatotherthantheverticalswing,theapschangetothehorizontalposition.
(iii) Reset conditions
Wheneitherofthefollowingconditionsissatised.
1) Compressor’s command speed is less than 28 (SRK100: 20 rps) rps.
2) Detected value of humidity is less than 63%.
(13)
Outline of dehumidifying (DRY) operation
The purpose is "Dehumidification", and not to control the humidity to the target condition.
Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling.
(i) Indoor fan speed and compressor are controlled by the area which is selected by the temperature difference.
When the outdoor air temperature and room temperature is low in cooling operation, indoor unit can not operate in cooling,
and dehumidify. In this case, the units operate in heating to rise the indoor air temperature and after that start DRY operation.
(a) Purpose of DRY mode
(b) Outline of control
(ii) The indoor unit check the current area by every 5 minutes, and operate by the next checking.
(c) Other
Indoor fan speed
Area
D C B A
Lo speed
Indoor
fan speed ULo speed
Stop
Limited（Lower than
normal cooling operation）
Compressor Limited
speed Minimum
（Lower than the speed in”Area A”）
Stop
Setting temperature
Difference between set temperature and indoor air temperature.
(13) Outline of dehumidifying (DRY) operation

Mitsubishi FDT71VH Specifications

General

Brand	Mitsubishi
Model	FDT71VH
Category	Air Conditioner
Language	English