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7
KOMFORT EC S/SB(-E) S11
Summer cooling mode
The bypass damper is opened, the extract air that is removed from the premises
bypasses the heat exchanger. The air stream temperature remains constant.
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
Backside view
Defrosting mode
The defrosting mode is designed for heat exchanger freezing protection and is activated on feedback from the freeze protection temperature sensor.
The temperature sensor is fixed to the inner surface of the extract air duct.
Defrosting procedure is possible in two ways:
•
Shutdown of the supply fan. For details, please refer to the user’s manual
for the control panel. See section „Engineering menu“, „Extra options“,
„Supply fan shutdown“.
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
•
Intake air pre-heating with the duct pre-heater EVH (accessory).
For details, please refer to the user’s manual for the control
panel. See section „Engineering menu“, „Extra options“,
„Heating control“.
SUPPLY AIR
EXTRACT AIR
Backside view
INTAKE AIR
EXHAUST AIR
