Zehnder Rittling ComfoAir 180, Manual

Page: 22 / 32

22 - EN
5.3 Casing
Inspect the unit casing at least once every 2 years.
1 2 3
Remove the front panel by removing
the 4 screws. Perform the following checks:
■
Check the seals for damage;
■
Check the inside and outside for
dirt and damage;
■
Check the duct connections for dirt
and damage.
Treat any signs of corrosion and other
damage directly and appropriately.
5.4 Heat exchanger
Inspect the heat exchanger once every 2 years.
1 2 3
Remove the front panel of the unit by
removing the 4 screws. Pull the strap to remove the heat
exchanger, the bypass and the
leakage tray.
Do not cut the strap.
Inspect and, if necessary, clean the
heat exchanger.
■
Use a soft brush to clean the fins;
■
Use a vacuum cleaner or air gun
(no high pressure) to remove dirt
and dust. Always clean against
the direction of the airflow. This
prevents dirt from getting stuck in
the heat exchanger;
■
Or use water to remove dirt and
dust:
a. Submerge the heat exchanger
several times in hot water (max.
40°C).
b. Rinse the heat exchanger with
clean hot tap water (max. 40°C).
c. Clasp the heat exchanger
between both hands (on the
colored side surfaces) and shake
the excess water from the heat
exchanger.
Do not use aggressive
cleaning agents or solvents.