Operation and Maintenance Manual for Rosenberg
Compact Ventilation Appliance series SupraBox
Comfort
BA 112 BB 11/12/A/SupraBox 1
23
Lubricate or replace the bearing
X
Check the fan fastening for tightness and mechanical
damages
X
Check the function of the vibration absorber
X
Check for the existence of the fasteners of the protection
units
X
Check the function of the drainage
X
X
Check the motor for dirt, mechanical defects, corrosion
and proper fastening
X
X
Cleaning of the motor housing
X
Check the power supply
X
Check the electrical connections for corrosion and proper
fastening
X
The fresh air fan can be detached for a more efficient cleaning. Unlock the four
allen-head screws at the chassis rails. Make sure that the wiring has been
disconnected first.
For easy cleaning the exhaust fan can also be unlocked and detached at the four
points of the vibration absorber!
The water or the cleaning agent respectively should have a neutral ph-value (6 – 8).
7.5 Reverse flow heat exchanger
7.5.1 Startup
Check the correct operation and direction of movement of the bypass flap at the
reverse flow heat exchanger. Make sure that the bypass flap is closed on startup of
the fans and consequently the flap above the plate heat exchanger is opened.
Pay attention that the drain pan at the bottom of the reverse flow heat exchanger in the exhaust air is
fixed to the condensate pipe by a trap (at the suction side. The assembly of the trap is described in
detail under point 5.5.
7.5.2 Operation
The automatic bypass flap will be controlled by the central device control using a
final control element.
