Nagas ABE Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 14 / 45

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Installation, operation, and maintenance manual-ABE Rev 1_2023
6. PRINCIPLE OF OPERATION OF THE RECUPERATOR
The high-efficiency energy recovery system with heat banks that store and discharge energy between the two
airstreams in a cyclical manner, either with over/under or side by side arrangements. At all time half the dampers
are closed, the other half are opened. All dampers move at once according to the following steps.
Example: Winter operation – Over/Under ducting installation
Damper position #1 :
The heat bank on the left is being
discharged with heat. The
outside air coming from the top-
left damper on the front of
recovery unit is heated up to the
supply air duct.
The heat bank on the right is
being loaded with heat by the
return air from the upper right
damper. Return air is cooled and
exits through the exhaust duct.
Damper position #2 :
The two heat banks reverse their
functions and outside air is now
coming from the top right
damper of the recovery unit.
(Image shown for reference only)
A control system changes the damper positions following different mode and modulation signal. The action is
fast (<1 second approx.) but the time between the two positions can vary from 20 to 120 seconds in maximum
recovery mode or 60 minutes steady in minimum recovery mode. (See sequence of operation section
Erreur !
Source du renvoi introuvable. )
WARNING !
The motor, linkage and dampers can move suddenly without notice. Injury or death can result from
crushing. Always keep a safe distance with the unit and close electrical power when servicing.