2VV DAPHNE, Руководство по установке

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22 23 2VV. Creating innovative solutions for you and your business since 1995.
ver.1 31-05-21
Description
Unit's behav -
iour
Likely problem Solution
12 – CO2 sensor failure Unit is venti -
lating
Defective air quality
sensor
Check that the CO2 sensor is connected correctly or check that
it is operating correctly (output signal value)
16 – Inlet – External
temperature sensor
failure (T-EXT1)
Unit is not
working
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kΩ)
17 – Inlet – Failure of
the temperature sensor
behind the exchanger
(T-EXT2)
Unit is not
working
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kΩ)
18 – Inlet – Tempera -
ture sensor failure in the
supply canal (T-EXT3)
Unit is not
working
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kW)
20 - Exhaust – Tem -
perature sensor failure
in the exhaust canal
(T-INT0)
Unit is not
working
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kΩ)
21 – Exhaust – Tem -
perature sensor failure
in the exhaust canal
(T-INT1)
Unit is not
working
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kΩ)
25 – Room temperature
sensor failure (T_Room)
Unit is venti -
lating
Room temperature sen -
sor failure
Check that the sensor is correctly connected to the electronics
or test it measuring its resistance (the resistance value at +20°C
is around 10kΩ)
32 - Air quality sensor
failure
Unit is venti -
lating
Defective air quality
sensor
Check that the quality sensor is connected correctly or check
that it is operating correctly (output signal value)
33 - Failure in the
recirculation relative
humidity sensor
Unit is venti -
lating
Defective relative hu -
midity sensor
Check that the humidity sensor is connected correctly or check
that it is operating correctly (output signal value)
34 - Failure in the sen-
sor of external tempera -
ture from BMS
Unit is venti -
lating
Defective sensor in BMS
or incorrectly received
data
Check that the address and values of the sensor in the BMS
system are correct. Check that the sensor in the BMS system is
working.
73 - Pre-freecooling
active
Unit is venti -
lating
Temperature evaluation
for freecooling mode in
progress
Preparation for freecooling mode in progress. It evaluates the
temperature and the conditions necessary to activate this mode.
74 – Flow reduction,
minimum temperature in
the canal not reached
Unit operates
in a restrict -
ed mode
The unit is trying to
reach the set values of
the channel's minimum
The temperature of the air flowing into the inlet branch of the
building has not been reached. The performance of the unit
is being automatically corrected to reach this minimum level.
Automatic process
75 - Passive house
protection
Unit is not
working
The unit is operating
in order to meet the
Passive house specifi -
cations
The temperature of the air flowing into the inlet branch of the
building is not within the Passive House specifications. Auto -
matic process
9. TROUBLESHOOTING