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Building Technologies
Boiler Sequence Controller RMK770
CE1P3132en
HVAC Products
12 Function block “Miscellaneous“
23.04.2009
12.5 Outside temperature relay
The function must be activated via the extra configuration:
Main menu > Commissioning > Extra configuration > Miscellaneous > Outputs > Outside
temperature relay
Assign terminal
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Outputs > Outside temperature relay
Operating line
Range
Factory setting
Switch-off point
–50…50 °C
5 °C
Switching differential
1…20 K
3 K
3131
D1
5
on
off
TOon
TO
SD
TOoff
off Deactivation
on Activation
SD Switching differential
TO 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 is opened again when
the outside temperature returns to a level above the switch-off point.
Switch-off point = 5 °C
Switching differential = 3 K
The relay contact closes when the outside temperature drops below 2 °C; it opens
when the outside temperature exceeds 5 °C.
12.6 Diagnostic
choices
Main menu > Miscellaneous > Inputs
Operating line
Range
Actual value outside temp
…°C
Display input 1
According to the input identifier
Display input 2
According to the input identifier
Display input 3
According to the input identifier
Display input 4
According to the input identifier
Main menu > Miscellaneous > Inputs
Operating line
Range
Outside temperature simulation
…°C
Main menu > Miscellaneous > Outputs
Operating line
Range
Outside temperature relay
Off / On
Extra configuration
Settings
Example:
