35
Rev. 01.01
REFERENCE
6. REFERENCE
Description
Behavior
Likely problem
Solution
12 – CO2 sensor failure
Unit is
ventilating
Defective air quality
sensor
Check that the CO2 sensor is connected correctly
or check that it is operating correctly (output
signal value)
13 - Failure of rotary
heat exchanger
Unit is not
working
Failure of rotary heat
exchanger
Check that the input error is correctly connected
to the electronics or check what type of error the
heat exchanger is indicating.
14 - ADB module error
Unit is
ventilating
Failure of adiabatic
module
Check that the input error is correctly connected
to the electronics or, if necessary, that the adia-
batic module is operating correctly
15 - Heat pump error
Unit is
ventilating
Heat pump failure
Check that the input error is correctly connected
to the electronics or, if necessary, that the heat
pump is operating correctly (according to the
instructions of its manufacturer)
16 – Inlet – External
temperature sensor
failure (T-EXT1)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
17 – Inlet – Failure of
the temperature sensor
behind the exchanger
(T-EXT2)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
18 – Inlet – Tempera-
ture sensor failure in
the supply canal (T-
EXT3)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
19 - Inlet - Tempera-
ture sensor failure after
the second exchanger
(T-EXT4)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
20 - Exhaust – Tem-
perature sensor failure
in the exhaust canal
(T-INT0)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
21 – Exhaust – Tem-
perature sensor failure
in the exhaust canal
(T-INT1)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
22 – Exhaust – Failure
of the temperature
sensor of the exchang-
er's anti-freeze protec-
tion (T-INT2)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
23 - Temperature sen-
sor failure of the ex-
changer's water supply
(T_WATER_IN)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
24 - Failure in the
return water sensor
of exchanger (T_WA-
TER_OUT)
Unit is not
working
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
25 - Room tempera-
ture sensor failure
(T_ROOM)
Unit is
ventilating
Room temperature
sensor failure
Check that the sensor is correctly connected to
the electronics or test it measuring its resistance
(the resistance value at +68°F is around 10kΩ)
Summary of Contents for VS1200 CMh/e
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