User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 8 Addendum 08.02.2007
8.7.8 Heat cost allocator MEMOTRON
®
2 WHE21
In the event of fault, the WHE21 heat cost allocator displays Error.
Error code central unit Error device
02 Undervoltage Error Undervoltage battery
34 Communication breakdown M-
bus
--- Current error of device not available
40 Severe error Error Hardware error or sabotage contact
42 Severe error, undervoltage Error Hardware error or sabotage contact
and undervoltage battery
8.7.9 District heating controllers SIGMAGYR
®
RVD2…
The RVD2… district heating controllers display Error on line 50 with the respective error
code.
Error code central unit Error code device
34 Communication breakdown
M-bus
--- Current error of device not available
61 Fatale plant error 030 Error flow sensor B1
032 Error flow sensor 2 B12
050 Error DHW sensor B31
052 Error DHW sensor B32
054 Error DHW flow sensor B3
62 External alarm 171 Alarm contact
63 Plant error 010 Error outside sensor B9
040 Error return sensor (primary) B7
042 Error differential / return sensor B71
043 Error differential / return sensor B72
64 Interruption of connection 180 Connection to heat meter interrupted
65 Communication error 061 Fault room unit 1
066 Fault room unit 2
081 Short-circuit LPB
086 Short-circuit PPS
66 Continuous control deviation 120 Flow alarm precontrol
121 Flow alarm heating circuit 1
122 Flow alarm heating circuit 2
123 Flow alarm DHW
67 Fault subsystem Error message from some other controller in
the interconnected system:
010 Error outside sensor B9
030 Error flow sensor B1
032 Error return sensor 2 B12
040 Error return sensor (primary) B7
042 Error differential / return sensor B71
043 Error differential / return sensor B72
050 Error DHW sensor B31
052 Error DHW sensor B32
054 Error DHW flow sensor B3
061 Fault room unit 1
066 Fault room unit 2
081 Short-circuit LPB
086 Short-circuit PPS
120 Flow alarm precontrol
121 Flow alarm heating circuit 1