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Building Technologies Modular Heating Controller RMH760B CE1P3133en
HVAC Products 12 Function block miscellaneous 05.02.2007
Number Text Effect
31
>1 wind speed sensor in
zone More than one wind speed sensor in the
same wind zone
Urgent message; must be acknowledged
12.4 Outside temperature relay
For each outside sensor, an outside temperature relay is available. It is irrelevant here
whether the outside temperature is directly acquired or transmitted via bus. The
RMH760B has 3 integrated outside temperature relays.
The function is to be activated via “Extra configuration”:
Main menu > Commissioning > Extra configuration > Miscellaneous > Outputs > Outside
temperature relay
Assign terminal
The 2 other outside temperature relays can be configured with heating circuit 2 and
heating circuit 3 under “Outputs”.
Main menu > Commissioning > Settings > … or
Main menu > Settings > Outputs > Outside temperature relay
Main menu > Settings > Heating circuit 2 > Outside temperature relay
Main menu > Settings > Heating circuit 3 > Outside temperature relay
Operating line Range Factory setting
Switch-off point –50…50 °C 5 °C
Switching differential 1…20 K 3 K
31
31
D
15
ON
OFF
TO
ON
TO
SD
TO
OFF
OFF
ON
SD
TO
Deactivation
Activation
Switching differential
Current outside temperature
The relay contact closes when the current outside temperature falls below the level of
Switch-off point minus switching differential. The relay contact will open again when the
current outside temperature returns to a level above the switch-off point.
Switch-off point = 5 °C
Switching differential = 3 K
The relay contact will close when the outside temperature drops below 2 °C, it will open
when the outside temperature exceeds 5 °C.
Extra configuration
Settings
Example