DESIGN AND OPERATING PRINCIPLE
The unit has the following operating logic: extract air from the room flows into the unit, where it is filtered by the extract filters, then air
flows through the heat exchanger and is exhausted outside by the exhaust fan.
Air from outside flows into the unit, where it is cleaned by the supply filters.
Then the air flows through the heat exchanger and is directed to the room with the supply fan.
Thermal energy of extract air is transferred to intake air from outside and warms it up. The air flows are fully separated.
Heat recovery minimizes heat losses, which reduces the cost of space heating in the cold season.
Freeze protection
In the exhaust duct a thermostat for heat exchanger freeze protection is mounted downstream of the heat exchanger.
If there is a threat of freezing, the thermostat switches off the supply fan and the heat exchanger is heated by the warm extract air.
To set the thermostat sensor threshold value, turn the control knob to the desired position.
The thermostat activation value is selected individually depending on the area of unit operation.
The recommended thermostat operating temperature is +3 °C (factory setting).
Exhaust fan
Supply filter
Drain pan
Thermostat
Heat exchanger
Extract filter
Supply fan
Supply air
Exhaust air
Extract air
Intake air
www.blaubergventilatoren.de
KOMFOrt ultra d 105(-A)
6
