Hybrid Cooling - Daikin FTXM-V Series Service Manual

Main Functions
1.6

Hybrid Cooling

Operation
Hybrid cooling becomes effective when COOL or DRY is selected from MODE button of the remote
controller. In cooling operation, hybrid cooling is automatically activated when the room
temperature approaches to the target temperature set from the remote controller. When more
cooling capacity is required, the operation automatically returns to the normal cooling operation.
During dry operation, in addition to the above, the indoor unit fan is automatically controlled to help
dehumidification.
Outline
In hybrid cooling, only a part of the heat exchanger is cooled. The cool, dehumidified air is mixed
with the room air, and then blown out at around the same temperature with the room air. This is to
keep dehumidification effect after the target temperature is reached. The area of the heat
exchanger to be cooled is determined automatically based on the amount of humidity to remove.
Particularly, when the amount of humidity is large, the area of the heat exchanger to be cooled also
becomes large. When the amount of humidity is small, the area of heat exchanger becomes small,
too.
30
MODE selector button
• Selects the operation mode.
AUTO DRY COOL
Normal cooling
HEAT FAN
Temperature is controlled by
mixing the room air
Dehumidification effect
continues by partially cooling
the heat exchanger

Hybrid cooling:

After the target temperature
is reached
SiUS042113E
R4003786
(R25241)
Part 4 Functions and Control