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Building Technologies
Modular Heating Controller RMH760B
CE1P3133en
HVAC Products
6 Boiler temperature control
05.02.2007
If there is no checkback signal from the shutoff valve, the boiler is considered faulty
also. The waiting time for the checkback signal can be adjusted. If there is no check-
back signal on completion of the waiting time, a fault will be signaled.
It can be selected whether or not flue gas temperatures above the maximum permissi-
ble level shall lead to a fault with boiler stop.
There are 3 digital fault inputs available having a default parameterization for water
shortage, high-pressure and low-pressure. But it is also possible to use other fault text.
Depending on the type of fault, the signal delay, fault acknowledgement, priority and /
or action can be parameterized. For fault inputs 1, 2 and 3, it is also possible to enter
fault text.
For details about the meaning of these settings, refer to chapter 13 “Function block
faults”.
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Boiler > Fault settings > Checkb sign shutoff valve
Operating line
Range
Factory setting
Signal delay start
00.05…59.55 m.s
02.00 m.s
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Boiler > Fault settings > Fault burner
Operating line
Range
Factory setting
Fault acknowledgement
None / Acknowledge /
Acknowledge and reset
Acknowledge
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Boiler > Fault settings > Checkback signal burner
Operating line
Range
Factory setting
Signal delay start
00.05…59.55 m.s
04.00 m.s
Signal interruption operation
00.00…59.55 m.s
20.00 m.s
Impact of fault
No stop / Stop
Stop
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Boiler > Fault settings > Overload pump
Operating line
Range
Factory setting
Fault acknowledgement
None / Acknowledge /
Acknowledge and reset
Acknowledge
and reset
Fault acknowledgement B
None / Acknowledge /
Acknowledge and reset
Acknowledge
and reset
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Boiler > Fault settings > Fault input 1
Operating line
Range
Factory setting
Fault text
Max. 20 characters
Water shortage
Impact of fault
No stop / Stop
Stop
Fault acknowledgement
None / Acknowledge /
Acknowledge and reset
Acknowledge
Fault priority
Urgent / Not urgent
Urgent
Fault status message delay
00.00…59.55 m.s
00.05 m.s
Fault shutoff valve
Maximum flue gas tem-
perature
Digital fault inputs
Fault settings