Publicité
Les langues disponibles
Les langues disponibles
Fault /
Failure of
Sensor T-room
control unit
Sensor
T-room bus
System memory
System bus
Combi sensor
(exhaust air
humidity/
temperature)
Additional circuit
board 1
Additional circuit
board 2
Message
Possible cause
Temperature
sensor control unit
fault
Break in a cable;
temperature
outside measuring
range; main con-
trol unit defective
Temperature sen-
sor KNX fault
No data telegram
for room tempera-
ture in the last
15 minutes
System memory
fault
Checksum error
of stored parame-
ters; load commis-
sioning data
System bus fault
Internal error; con-
tact specialist
Humidity / temper-
ature sensor
for exhaust air
fault
Break in a cable;
humidity/tem-
perature outside
measuring range
ZP 1 communica-
tion fault
Break in a cable;
ZP1 defective, in-
correct DIP switch
setting on ZP 1
ZP 2 communica-
tion fault
Break in a cable;
ZP 2 defective, in-
correct DIP switch
setting on ZP 2
Ackn.
Fault /
Failure of
A
Bypass
Supply air temper-
ature too cold
A
Exhaust air tem-
perature too cold
M
Frost protection
A
A
Zone shutter
External
A
preheating
Pressure consist-
ency setpoint
not reached
A
18 Faults | UK
Message
Possible cause
Bypass fault
Motor defective,
foreign body block-
ing mechanics
Temperature of
supply air
too cold
Heat exchanger
iced over, PTC
heat exchanger
defective
Temperature of
exhaust air
too cold
Exhaust air in unit
too cold, apart-
ment cooled
Frost protection
fault
Break in a cable,
heating module
defective, tem-
perature switch
on heat register
defective
Shutter fault
Motor defective,
foreign body
blocking
mechanics
External preheat-
ing fault
External preheat-
ing defective
Pressure consist-
ency fault
Setpoint is not
reached
Ackn.
M
A
A
M
M
M
M
65
Publicité
