Zehnder Rittling ComfoAir E 350, Руководство пользователя

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26 - EN
5 Malfunction procedures
Always disconnect the power supply of the
unit before you start working on the unit.
Operation with the casing open can lead to
personal injury. In such a case, ensure that
no live or rotating parts can be touched.
Only switch off the power to the unit when the
instructions say so.
When tracing malfunctions, it is often
necessary to apply voltage to the unit while
the casing is open. Be aware at all times
that this brings with it the risk of electrical
shock and injury from rotating parts.
Take all possible measures necessary to
protect yourself and others while tracing a
malfunction.
The electronics can be damaged by static charging,
so always take measures to prevent electrostatic
discharge (e.g. antistatic belt) when handling the
electronics.
The unit always aims to ventilate as comfortably and
healthily as possible. This is not always possible if a
malfunction occurs. The unit adapts its controls during a
malfunction in such a way that the unit is not damaged
further, with the preference being to maintain ventilation.
If the unit has more than one malfunction, the safety
of the unit is not guaranteed and the ventilation will be
deactivated. This also applies if the sensor in the supply
air is defective. To guarantee a healthy living climate
for the user, these errors must be resolved as soon
as possible. The other errors will primarily impact the
comfort of the user and the performance of the unit.
The section “What to do if a malfunction alert occurs
(problem solving)” describes how to solve all error
codes.
5.1 Malfunction alerts on the display of the unit
Code Meaning
BYPASS MOTOR 11 ERROR Malfunctions in the motor of the bypass valve on the extract-air side.
BYPASS MOTOR 20 ERROR Malfunctions in the motor of the bypass valve on the outdoor-air side.
FAN 12 ERROR Malfunctions in the fan for the exhaust air.
FAN 22 ERROR Malfunctions in the fan for the supply air.
FILTER ALARM Internal filters are dirty
FILTER ALERT Increasing contamination of the internal filters
Order new filters immediately.
PRESSURE 12 ERROR Malfunctions in the pressure sensor for the exhaust air.
PRESSURE 22 ERROR Malfunctions in the pressure sensor for the supply air.
RH SENSOR 11 ERROR Malfunctions in the humidity sensor for the extract air.
RH SENSOR 12 ERROR Malfunctions in the humidity sensor for the exhaust air.
RH SENSOR 20 ERROR Malfunctions in the humidity sensor for the outdoor air.
RH SENSOR 22 ERROR Malfunctions in the humidity sensor for the supply air.
TEMP SENSOR 11 ERROR Malfunctions in the temperature sensor for the extract air.
TEMP SENSOR 12 ERROR Malfunctions in the temperature sensor for the exhaust air.
TEMP SENSOR 20 ERROR Malfunctions in the temperature sensor for the outdoor air upstream of the preheater.
TEMP SENSOR 21 ERROR Malfunctions in the temperature sensor for the outdoor air downstream of the preheater.
TEMP SENSOR 22 ERROR Malfunctions in the temperature sensor for the supply air.
PREHEAT. ERROR The preheater does not heat sufficiently.
PREHEAT. TOO HOT The preheater is getting too hot.
PREHEAT. LOC. ERROR The preheater is not at the correct location, is defective or absent.
10001047667-0619-zw-zw-A4 ComfoAir E 350 GEN2 Service Zehnder-SI_EN.indd 26 11-07-19 13:31