Diagnostics Consumers - Siemens AVS75.39 Series User Manual

Heating circuits 1, 2, 3
Room temperature 1 / 2 /
3 model
Siemens
Building Technologies
6.26

Diagnostics consumers

Line no.
8700...9058
For diagnostic purposes, the various setpoints, actual values, relay switching states
and meter readings can be displayed.
Line no. Operating line
8742 Room temp 1 model
8772 Room temp 2 model
8802 Room temp 3 model
The room model calculates a fictive room temperature for rooms without room
sensor. The value calculated for each heating circuit is indicated on these operating
lines.
This allows boost heating, quick setback, and optimum start and stop control to be
implemented with no need for using a room sensor.
The calculation takes into account the attenuated outside temperature (operating
line 8703), the room model gradient (operating line 6112) for switching to a higher
setpoint, and the building's time constant (operating line 6110) for switching to a
lower setpoint.
TRw
TRK
TRR
TRF
TAgem
TRwAkt Current room temperature setpoint
TRmod Room temperature model
TRK Comfort setpoint
TRR reduced setpoint
TRF frost protection setpoint
User manual RVS43.345
The settings in detail
Operating line
TRmod
TRwAkt
205 / 239
CE1U2354en_021
2013-09-02