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Building Technologies Modular Heating Controller RMH760B CE1P3133en
HVAC Products 5 General functions, fundamentals 05.02.2007
Main menu > Commissioning > Extra configuration > Heating circuit 1 (or 2 or 3) > Outputs
Main menu > Commissioning > Extra configuration > DHW > Outputs
Main menu > Commissioning > Extra configuration > Primary controller > Outputs
Main menu > Commissioning > Extra configuration > Main controller > Outputs
Main menu > Commissioning > Extra configuration > Boiler > Outputs
Operating line
Adjustable values / display / remarks
…pump Assign terminal
…pump B Assign terminal
When both outputs (pump and pump B) are configured, the pump used is a twin pump.
A fault input is also available for pump B. The flow switch is used by both pumps.
Main menu > Commissioning > Extra configuration > Heating circuit 1 (or 2 or 3) > Inputs
Main menu > Commissioning > Extra configuration > DHW > Inputs
Main menu > Commissioning > Extra configuration > Primary controller > Inputs
Main menu > Commissioning > Extra configuration > Main controller > Inputs
Main menu > Commissioning > Extra configuration > Boiler > Inputs
Operating line
Adjustable values / display / remarks
[…pump] overload Assign terminal
[…pump B] overload Assign terminal
Flow signal pump Assign terminal
If a twin pump was configured, the relevant function block will show menu item Twin
pump.
Main menu > Commissioning > Settings > … or
Main menu > Settings > Heating circuit 1 (or 2 or 3) > Twin pump
Main menu > Settings > DHW > Primary twin pump (or Secondary twin pump or Circulating
twin pump)
Main menu > Settings > Primary controller > Twin pump
Main menu > Settings > Main controller > Twin pump
Main menu > Settings > Boiler > Twin pump
Operating line Range Factory setting
Run priority
Auto / Twin pump A /
Twin pump B
Auto
Changeover period –60…0…+60 s 0 s
5.8.1 Changeover logic
For pump changeover, there are 3 choices available:
• Automatic changeover once a week; should the working pump become faulty,
changeover to the second pump will take place.
When switching on the next time, the pump that starts is always the pump that was
in operation last
• Twin pump A is always the working pump.
In the event of fault, changeover to pump B will take place. After correction of the
fault, a change back to pump A will be made
• Twin pump B is always the working pump.
In the event of fault, changeover to pump A will take place. After correction of the
fault, a change back to pump B will be made
Outputs
Inputs
Setting
Run priority
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