15
Airblock FG
1.50
Slimline air handling unit for decentralized, dynamic air treatment
Installation and Operating Instructions
5.6.3 Housing
The galvanised, double-walled housing
5
of the Airblock modules is
maintenance-free. Dirt on the outer housing has no influence on the
operation of the unit. Dirt on the inside of the housing indicates a lack of
maintenance.
5.6.4 Fan Motor
The external rotor motor
6
of the Airblock is maintenance-free. The motor‘s
ball bearings, sealed on both sides, are greased for life. In contrast, deposits
on the fan and inlet nozzle reduce the air volume and must be removed:
• Unscrew the turn bolt fasteners and open the service hatch
4
. Swivel
the service hatch fully downwards. The fans are now freely accessible for
cleaning purposes.
• Check the fan and inside of the housing at regular intervals (at least once
a year) and clean if dirty.
Please refer to the respective fan operating instructions for more information!
Remove the protection securing the system from being switched on after
completing the work.
5.6.5 Cu/Al Heat Exchanger
The heat exchanger
12
requires no maintenance if the system is properly
maintained, i.e. if the filter is monitored and changed regularly. However,
please proceed as follows if maintenance or repairs are required:
• Carry out a visual inspection of the heat exchanger. To do this, open the
service hatch
4
.
• The heat exchanger can be removed through the side service hatch. First
remove the flow and return pipes. Then loosen the screws on the heat
exchanger fastenings and pull out the heat exchanger sideways.
• Observe the safety information in 5.3.
• Residual water may remain in the heat exchanger once it has been
emptied.
Cleaning the heat exchanger:
• Blast the Airblock CU/AL heat exchanger with appropriate compressed
air or flush the heat exchanger with a suitable medium to remove
accumulated dust. Proceed extremely carefully as the aluminium fins
bend very easily and then restrict the air flow! (Bent fins have to be
straightened with an appropriate tool).
Содержание Airblock FG 06
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