Zehnder Rittling ComfoAir 350 Instruction Manual - page 13
2
9
For the user
2.4 Malfunctions
Malfunctions in the ComfoAir are reported as fol-
lows:
•
The malfunction indicator on the 3-position
switch lights up;
•
The malfunction alert appears on the display.
A concise explanation of these maintenance activi-
ties is given in the paragraphs below.
2.4.1 Malfunction alerts on the digital
operating device
In the event of a malfunction, the corresponding
malfunction code will be displayed on the digital
operating device of the ComfoAir. The digital oper-
ating device will always show an 'A' or an 'E', with
a number as a suffi x. Please refer to the malfunc-
tion overview to fi nd out the meaning of the relevant
malfunction alert.
2.4.2 3-position switch with malfunction
indicators
The 3-position switches that are fi tted with a mal-
function indicator show when a malfunction has
occurred. Depending on the type of the 3-posi-
tion switch, this is done in one of the following two
ways:
•
3-position switch with malfunction indicator.
In the event of a malfunction (or in the event of
a fi lter dirty alert) the indicator lights up.
•
Wireless 3-position switch with malfunction in-
dicator.
The malfunction indicators will light up once
this 3-position switch is used. One indicator
will light up green to indicate communication
has been established. Subsequently, in the
event of a malfunction (and in the event of a
fi lter dirty alert) both indicators will fl ash red 3
times. After that, both indicators will light up
green once more.
The malfunction indicator on the 3-position
switch will not light up in the event of mal-
functions alone, but will also light up in the
event of fi lter cleaning warnings.
2.4.3 What to do in the event of a malfunction
In the event of a malfunction, contact the installer.
Note down the malfunction code that appears on
the digital operating device. Make a note of your
ComfoAir type. This is given on the identifi cation
plate on the top of the ComfoAir.
The system should not be disconnected from the
power supply, unless the ComfoAir must be taken
out of service due to a serious malfunction, or for
fi lter cleaning/replacement or any other compelling
reasons.
If the ComfoAir is disconnected from the
power supply, mechanical ventilation of the
dwelling will cease. This can lead to a build-
up of moisture and results in problems with
mould. Long-term deactivation of the Com-
foAir must therefore be prevented.
2.5 End of useful life
Consult with your supplier about what you should
do with the ComfoAir at the end of its useful life.
If the ComfoAir cannot be returned to the supplier,
avoid disposing of it with the domestic waste, and
ask your local council about the options for recy-
cling the components or processing the materials
in an environmentally friendly manner.
Furthermore, do
not dispose of batteries from the
wireless switches with the normal waste, but bring
them to the specially designated disposal loca-
tions.