Clock Back-Up; Error Messages; Installation - Zehnder ComfoSense CH Manuel

Exiting the status menu
6. Press or
7. Confirm with OK.
8. Press MENU to return to the main
menu.

2.13 CLOCK Back-up

The device can keep the clock running for
at least one hour without power. After that
the clock has to be set again. Before the
back-up is able to function fully, the device
has to be powered for at least 20 minutes.
The set values in the parameter menu's
will always be saved.
3.

Error messages

When the filters must be cleaned or
replaced the text says FLTR or FLTR, EXT*.
Clean or replace the filters as described in
the manual of the ventilation unit.
In event of a malfunction in the ventilation
unit, the text says ERROR, and the
corresponding malfunction code.
The meaning of the displayed malfunction
code and how to solve the problem can be
found in the manual of the ventilation unit.
The following malfunction codes only
appear on the device:
Code Description
FLTR Internal Filter is dirty.
FLTR, EXT External Filter is dirty.
COMM, No communication between
ERROR the ventilation unit and the
device.
Resetting FLTR
1. Press OK to enter the reset menu.
2. Press OK to confirm. The text says
DONE for 2 seconds. The menu is
automatically closed.
Resetting FLTR EXT
After cleaning or replacing the external
filter as mentioned in the external filter
* Only available if the mentioned
function is connected.
to select BACK.
manual the malfunction code will reset
itself automatically.
Resetting error messages
1. Press MENU.
2. Press OK to confirm. The text says
OK for 2 seconds. The menu is
automatically closed.
4.

Installation

Disconnect the ventilation unit
from the main power before
installing the device.
Always follow
regulations.
ensure that ALL screws are tight.
The letters mentioned in this
chapter refer to the installation
figures (Fig. 1, 2, 3 or 4) at the
back of this document.
1. If ordered: Attach the wall-mounting
casing I with the plugs H and screws
G to the wall.
2. Fasten the wall frame A with the
screws F** on the wall, wall-mounting
casing I or mounting plate**.
3. Put the communication cable through
the wanted design frame X and
resize window D
4. Connect the communication cable
between the ventilation unit and the
device as shown in fig. 5 at the back
of this document.
The cable requirements are:
■ Maximum length: 50m
■ Number of cores: 4
■ Advice Ø: 0,60mm
■ Minimum Ø: 0,25mm
■ Maximum Ø: 1,00mm
5. Screw the device B (with the design
frame X and the resize window D)
with the screws E to the frame A.
local safety
During assembly,
2
2
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EN - 25