Siemens LMV51.100B2 - Temperature Limiter Function; Boiler Setpoints W1 and W2

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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 8 Commissioning instructions for the LMV5... system 13.08.2004
The integrated temperature limiter observes a separate temperature limit.
(for details → «Integrated temperature limiter function»).
After the switch-off point in °C for the temperature limiter has been entered, the relative
switch-on point in % will be given.
Example: TW_Threshold_Off: 80 °C
TW_SwiDiff_On -10 % ( = 8 K)
Temperature limitation on at 72 °C
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
Params & Display
LoadController
TempLimiter
TL_Thresh_Off
TL_SD_On
Or
SystemConfig
TempLimiter
TL_Thresh_Off
TL_SD_On
2 boiler setpoints can be adjusted which, however, must not lie above the actual limit
value of the temperature limiter function ( → «Setpoints»).
Changeover from setpoint W1 to setpoint W2 is accomplished by means of an external,
potential-free contact at input 3.
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
Params & Display
LoadController
ControllerParam
Setpoint W1
Setpoint W2
Or
Operation
BoilerSetpoint
Setpoint W1
Setpoint W2
Temperature limiter func-
tion
Boiler setpoints
W1 and W2