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Building Technologies
Modular Heating Controller RMH760B
CE1P3133en
HVAC Products
9 Heating circuit control
05.02.2007
Number Text
Effect
51
[HC 1] error return sensor
Nonurgent message; must be acknowl-
edged
56
[HC 2] error return sensor
Nonurgent message; must be acknowl-
edged
53
[Heat circuit 3] return sens
error
Nonurgent message; must be acknowl-
edged
In the event of a faulty return temperature sensor, the heating circuit behaves as if no
return temperature sensor was present. Return temperature limitation is deactivated.
Number Text
Effect
60
Room temp sensor error
HC 1
Nonurgent message; must not be ac-
knowledged
65
Room temp sensor error
HC 2
Nonurgent message; must not be ac-
knowledged
68
Room temp sensor error
HC 3
Nonurgent message; must not be ac-
knowledged
61
>2 room sensors in heat
circuit 1
Urgent message; must be acknowledged.
More than 2 room temperature sensors in
the same geographical zone
66
>2 room sensors in heat
circuit 2
Urgent message; must be acknowledged.
More than 2 room temperature sensors in
the same geographical zone
69
>2 room sensors in heat
circuit 3
Urgent message; must be acknowledged.
More than 2 room temperature sensors in
the same geographical zone
Number Text
Effect
5401
Room master failure in HC 1 Nonurgent message; must not be ac-
knowledged. No master
5411
Room master failure in HC 2 Nonurgent message; must not be ac-
knowledged. No master
5421
Room master failure in HC 3 Nonurgent message; must not be ac-
knowledged. No master
5402
>1 identical geogr zone [1]
Nonurgent message; must be acknowl-
edged. More than one master in zone of
heating circuit 1
5412
>1 identical geogr zone [2]
Nonurgent message; must be acknowl-
edged. More than one master in zone of
heating circuit 2
5422
>1 same geogr zone [3]
Nonurgent message; must be acknowl-
edged. More than one master in zone of
heating circuit 3
Number Text
Effect
2521
[Heat circuit 1 pump]
overload
Nonurgent message.
Acknowledgement can be selected; factory
setting: “Acknowledge and reset”.
No heating circuit stop
Faulty return
temperature sensor
Faulty room temperature
sensor
Faulty room controller
combination
Pump fault in heating
circuit 1
