Solar; General - Siemens LMS14 User Manual

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Building Technologies Division

6.15 Solar

6.15.1 General

The basic unit supports solar DHW heating or heating backup via a buffer storage tank.
Solar charging is performed with a single-speed charging pump on the basis of the
temperature differential between DHW storage tank and collector, or between buffer
storage tank and collector.
The LMS14... supports:

One collector panel with sensor B6

Collector pump Q5 (1-speed)

One heat exchanger with sensor B3 or B31

One heat exchanger with sensor B4 or B41
The following functions are available:

dT control of DHW storage tank and buffer storage tank

Minimum and maximum charging temperature

Minimum running time

Pump and valve kick

Status display (operating state)

Overtemperature protection for the collector

Storage tank recooling via the collector

Storage tank recooling via the boiler/space heating

Frost protection for the collector

Evaporation of collector medium (protection for the pump)

Collector start

Collector hours run

Display of minimum and maximum collector temperature
Note!
A sensor B6 and collector pump Q5 must be parameterized at the multifunctional
inputs/outputs (BX, QX) for configuration of the solar diagram and for the associated
parameters to be displayed, or else the Solar DHW application must be used via an
extension module.
User Manual LMS14...
6 The settings in detail
CC1U7471en
28.01.2015