Outside Sensor - Siemens Synco700 RMK770 Documentation Handbook

Functions
Note
Time switch
Business card
Connection choices
174/226
Building Technologies
HVAC Products
Main menu > Commissioning > Extra configuration > Miscellaneous
Operating line
Time switch
Business card
The special day input and the holiday input are described in section 5.2
"Holidays/special days".
If there is no heating circuit on the controller, the heating circuit's time switch can be
used for external controllers on the bus.
For more detailed information, refer to section 5.1.2 "Time switch for external controllers
on the bus".
Activation of the business card is described in section 4.5.4 "Electronic business card".
11.3

Outside sensor

At the RMK770, an outside sensor can be connected. It can be used for the following
purposes:
• Compensating variable for the heating circuit
• Compensating variable for the heat demand transformers
• For certain frost protection functions
• For locking the boilers as a function of the outside temperature
The outside temperature can be provided by different sources:
• It is locally connected to a terminal
• It is delivered via bus
The following variants are available:
Variant
Outside temperature
locally at terminal.
Communication outside
temperature not active
Outside temperature
locally at terminal.
Communication outside
temperature active
No outside temperature
locally.
Communication outside
temperature active
No outside temperature
locally.
Communication outside
temperature not active
The type of outside sensor can be selected under Settings > Inputs at the assigned ter-
minal. Default setting is an LG-Ni1000 sensor.
Connection of an NTC575 sensor (e.g. QAC32) is not possible.
Boiler Sequence Controller RMK770
11 Function block miscellaneous
Range
Off / On
Yes / No
Effect
Controller operates with its
own outside temperature.
No impact on the bus
Controller operates with its
own outside temperature.
The outside temperature is
also made available to other
controllers via bus
The controller operates with
the outside temperature deliv-
ered by some other controller
via bus
The controller has no outside
temperature to work with
Factory setting
Off
Yes
Diagram
T
T
T
T
CE1P3132en
01.03.2005