Table of Contents
Advertisement
Identification
stratification storage tank
Interm circ boost
recharging
Intermediate circuit boost
Excess interm circ temp
max
Flow setp
compensation delay
Flow setp
compensation Xp
Flow setp compensation
Tn
332/617
Building Technologies Division
6.18.19 Stratification storage tank/intermediate circuit
The LMS14... identifies a DHW storage tank as a stratification tank (with external heat
exchanger) if an intermediate circuit pump (Q33) was configured.
Variant:
Note!
To be able to make use of this variant, it must be enabled by Siemens.
If a DHW system with intermediate circuit pump (Q33) is configured, a partial diagram
Stratification storage tank is identified only when ...
- a sensor input for a sensor (B36) was configured, and
- a valid sensor value is acquired at this sensor input.
Otherwise, a partial diagram Storage tank (with built-in heat exchanger) is identified.
In that case, the output configured for the control of the intermediate circuit pump
(Q33) is not controlled.
Line no.
Operating line
5139
Interm circ boost recharging
Setpoint increase for the charging setpoint at sensor B36 in the case of recharging.
Line no.
Operating line
5140
Intermediate circuit boost
Setpoint increase for the charging setpoint at sensor B36 in the case of full charging.
Line no.
Operating line
5141
Excess interm circ temp max
This parameter is used to define the final criterion for full charging in the case of control
according to sensor B36. When the stratification storage tank is fully charged right
down to the bottom, the temperature at the charging sensor rises.
Line no.
Operating line
5142
Flow setp compensation delay
Here, set the filter time for setpoint compensation.
Setting OSV means that the burner's output is controlled directly according to the
temperature acquired by sensor B36.
Line no.
Operating line
5143
Flow setp compensation Xp
The proportional band Xp defines the controller's gain. A smaller proportional band
leads to a higher flow temperature setpoint while maintaining the same offset
Line no.
Operating line
5144
Flow setp compensation Tn
The integral action time Tn determines the controller's rate of response when
correcting proportional offsets. Shorter integral action time's lead to faster
correcting actions
.
User Manual LMS14...
6 The settings in detail
.
CC1U7471en
28.01.2015
Advertisement
Table of Contents
