Zehnder Group ComfoAir 160, Installer Manual

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EN - 18
8. Change the fan settings in P menus P30 to P37 of
the digital operating device.
– Select the lowest possible setting in order to
conserve energy.
– Ensure that the ratios between low, medium
and high remain equal.
Use the chart of the ComfoAir's air specifica-
tions to set the fans.
9. In the event that the currently set air volumes still
deviate too much: Adjust the valves.
10. Check the entire installation again, after all valves
have been set.
11. Switch the ComfoAir (back) to ventilation position
2.
- Display: Press simultaneously for 3 seconds on
" " and " " until “InR” disappears of the
display.
- CC Ease panel: Press simultaneously for 3 sec-
onds on " " and " " until “InR” disappears
from the CC Ease panel.
2.9 Maintenance by the installer
The following maintenance must be carried out by the
installer:
• Inspecting and (if necessary) cleaning the heat
exchanger;
• Inspecting and (if necessary) cleaning the fans;
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 from the ComfoAir.
2. Remove the front panel by first removing the 6
protective caps (A) then the screws.
A
3. Re-
move the lower sensor (D) from its holder.
4. Remove the lower 2 M6 bolts (B).
5. Remove the loose splash screen.
6. Remove the remaining 3 M6 bolts (E) of the heat
exchanger.
7. Remove the heat exchanger (C) from the unit.
D
The heat exchanger may fall downwards on
ceiling-mounted units, so ensure it is fully
supported.
6 Inspecting and if necessary clean the heat ex-
changer.
- Use a soft brush to clean the lamellae.
- Use a vacuum cleaner or air gun (no high pres-
sure) to remove dirt and dust.
Always clean against the direction of the air-
flow. This prevents dirt from getting stuck in
the heat exchanger.
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 coloured side surfaces) and shake the water from
the heat exchanger.
Do not use aggressive cleaning agents or
solvents.
If the fans also need maintenance do not re-
install the heat exchanger yet.
7. If no more maintenance is necessary install all
parts in reverse order, reconnect the power and
carry out the self-test in accordance with menu
P76.
Fasten the screws to a maximum of 1.5 Nm.
This is roughly equal to speed 2 of an ave-
rage battery-powered drill.