Zehnder Rittling ComfoAir 350, Installer Manual

Page: 19 / 36

19 - EN
- Display: Press simultaneously for 3 seconds on
" " and " " until “InR” disappears of the
display.
2.9 Maintenance by the installer
The following maintenance must be carry out by the
installer:
■
Inspecting and (if necessary) cleaning the heat
exchanger;
■
Inspecting and (if necessary) cleaning the fans;
■
Inspecting and (if necessary) cleaning the
preheater element filter (If a preheater element is
fitted).
A concise explanation of these maintenance
activities is given in the paragraphs below.
Check the condensation drain once every 2
years.
Failure to carry out (periodic) maintenance
on the ComfoAir ultimately compromises the
performance of the ventilation system.
2.9.1 Inspecting and cleaning the heat
exchanger
Check the heat exchanger once every 2 years.
1. Disconnect the power (A) from the ComfoAir.
2. Remove the handles (B) from the ComfoAir;
3. Remove the filters from the ComfoAir.
4. Release the front panel by unscrewing the screws
(C).
5. Slide the front panel upwards and remove the
front panel from the ComfoAir.
C
B
A
6. Release the cover panel by unscrewing the screws
(D).
7. Remove the cover panel.
When reassembling the front cover, the lower
section must first be inserted behind the
raised edge to ensure a good seal.
D
ComfoAir – Left-hand version
8. Pull the strap (E) to remove the heat exchanger
and the leakage tray (F).
9. Remove the bypass duct (G) in the
left-hand
version of the ComfoAir.
E
F
G
ComfoAir – Right-hand version
8. Remove the bypass duct (G) in the right-hand
version of the ComfoAir.
9. Pull the strap (E) to remove the heat exchanger
and the leakage tray (F).
E
F
G
10. Remove the heat exchanger from the leakage
tray (F).
The heat exchanger may contain some
residual water!
When reassembling the leakage tray the
openings in the leakage tray must be on the
side of the condensation drain.