Zehnder Group ComfoAir 160, Руководство по установке

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19 - EN
2.9.2 Inspecting and cleaning the fans
Check the fans once every 2 years.
1. Remove the heat exchanger as instructed in the
maintenance chapter of the heat exchanger
2. Pull out the black stop (D) next to the fan(s).
3. Turn the fan(s) slightly.
4. Slide the fan(s) out of the unit.
5. Inspecting and if necessary clean the fans (O).
- Use a soft brush to clean the fan impellers.
- Use a vacuum cleaner to remove dust.
Do not damage the fan impellers or tempe-
rature sensor.
6. Install all parts in reverse order.
7. Carry out the self-test as per menu P76.
Fasten the screws to a maximum of 1.5
Nm. This is roughly equal to speed 2 of an
average battery-powered drill.
2.10 Malfunctions
Malfunctions in the ComfoAir are reported as follows:
• The malfunction alert appears on the display.
• The malfunction alert appears on the CC Ease
panel;
• The malfunction indicator on the 3-position
switch lights up;
Malfunction alerts may not appear on the digital op-
erating device in all cases, even though there is a
malfunction (or problem). A concise explanation of
both types of malfunction (or problem) is given in the
paragraphs below.
2.10.1 Malfunction alerts on the digital
operating device
In the event of a malfunction, the corresponding mal-
function code will be displayed on the digital operat-
ing device of the ComfoAir.
Below is a list of the malfunction alerts on the digital
operating device.
In the chapter about trouble shooting it is explained
how to solve these malfunctions
Code description
A1 NTC sensor T1 is defective.
(= outside air temperature)
A2 NTC sensor T2 is defective.
(= supply air temperature)
A3 NTC sensor T3 is defective.
( =return air temperature)
A4 NTC sensor T4 is defective.
(= exhaust air temperature)
A5 Malfunction in the bypass motor.
A6 n/a
E1 Exhaust fan not rotating
E2 Supply fan not rotating.
EA1 Enthalpy sensor measures exces-
sive Relative Humidity (RH) values.
EA2 No communication between the
enthalpy sensor and the ComfoAir.
NC No communication between the CC
Ease panel and the ComfoAir.
,Fil' ,tEr' Internal Filter is dirty.
Filterl
Internal Filter is dirty.
2.10.2 3-position switch with malfunction
indicators
The 3-position switches that are fitted with a malfunc-
tion indicator show when a malfunction or filter dirty
alert has occurred. Depending on the type of the 3-po-
sition switch, this is done in one of the following two
ways:
• 3-position switch with malfunction indicator.
In the event of a malfunction or filter dirty alert
the indicator lights up;
• Wireless 3-position switch with malfunction indi-
cator.
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
malfunctionor filter dirty alert both indicators will
flash red 3 times. After that, both indicators will
light up green once more.