Mitsubishi Heavy Industries SCM50ZS-W User Manual

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30
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'19 • SCM-SM-281
(10) Outline of cooling operation
(a) Operation of major functional components in cooling mode
(b) Detail of control in each mode (Pattern)
(i) Fuzzy operation
During the fuzzy operation, the air ow and the compressor speed are controlled by calculating the difference between
the room temperature setting correction temperature and the suction air temperature.
ON OFF OFF
OFF OFF OFF
ON
OFF
(few minutes ON)
OFF
(few minutes ON)
ON ON ON
Thermostat ON Thermostat OFF Failure
Cooling
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
15-66rps 15-98rps
15-66rps
15-74rps
15-74rps 15-98rps
15-46rps 15-52rps 15-74rps
15-34rps 15-38rps 15-46rps
Model
Fan speed
SKM20ZSP-W SKM25ZSP-W SKM35ZSP-W
AUTO
MED
HI
LO
(12) Outline of automatic operation
(a) Determination of operation mode
The unit checks the indoor air temperature and the outdoor air temperature, determines the operation mode, and then
begins in the automatic operation.
(ii) Hot keep operation
During the heating operation, the indoor fan speed can be controlled based on the temperature of the indoor heat ex-
changer (Th2) to prevent blowing of cold air.
(11) 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 unit fan speed and compressor are controlled by the area which is selected by the temperature difference.
Indoor unit fan speed
Area
D C B A
Me speed
Indoor unit
fan speed ULo(Lo) 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
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

Mitsubishi Heavy Industries SCM50ZS-W Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SCM50ZS-W
Category	Air Conditioner
Language	English