Siemens LMS14 User Manual page 213

Key
Temp differential max
Temp differential
nominal
Building Technologies Division
Line no.
HC1 HC2 HC3
889 1189 1489
Line no. Operating line
2316 Temp differential max
2317 Temp differential nominal
PWM-Min Parameterized minimum speed of heating circuit or boiler pump
PWM-Max Parameterized maximum speed of heating circuit or boiler pump
Limitation of the boiler temperature increase in connection with a speed-controlled
pump (heating circuit or boiler pump) is only active in space heating mode. It is
deactivated as soon as there a request for DHW heating.
Prerequisite for limitation of the boiler's temperature differential is a correctly working
sensor B7 and a parameterized upper limit for the permitted boiler temperature
differential: Temp differential max.
Line no. Operating line
2316 Temp differential max
The maximum boiler temperature differential in connection with a speed-controlled
heating circuit pump is maintained when the pump is controlled at the maximum
permissible speed.
The function can be deactivated by setting OSV (---).
Line no. Operating line
2317 Temp differential nominal
In connection with a speed-controlled heating circuit pump and pure Heating mode, the
nominal boiler temperature differential is maintained as long as the heating circuit pump
is not controlled at the maximum permissible speed.
User Manual LMS14...
6 The settings in detail
Operating line
Filter time constant speed control
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CC1U7471en
07.05.2014