Frost Protection For The Plant - Siemens Synco 700 Basic Documentation

General settings
Settings per function
block
Building Technologies
HVAC Products
Number Text
5212 >1 hol/sp day prgm HC 2
5222 >1 hol/sp day prgm HC 3
5232 >1 hol/sp day prgm DHW
When evaluating the priority in the holidays / special day program, only the first 2
entries are taken into consideration. If more than 2 overlapping entries are made, the
situation can occur that the special day no longer has priority over holidays.
5.3

Frost protection for the plant

Main menu > Commissioning > Settings > ... or
Main menu > Settings > Protective functions
Operating line
Frost prot for plant ON (cycling)
Frost prot for plant ON (cont)
To protect the water pipes from freezing, frost protection for the plant can activate the
respective pump depending on the actual outside temperature.
This takes place independent of heat requests. Prerequisite is, however, that "Frost
protection for the plant" has been activated for the relevant pump.
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Heating circuit 1 (or 2 or 3) > Limitations
Operating line
Frost protection for the plant
Main menu > Settings > DHW > Limitations
Operating line
Frost prot plant primary pump
Frost prot plant secondary pump
Frost prot plant circulating pump
Main menu > Settings > Primary controller > Limitations
Main menu > Settings > Main controller > Limitations
Operating line
Frost protection for the plant
Main menu > Settings > Boiler > Limitations
Operating line
Frost prot boiler pump
The necessity for activating "Frost protection for the plant" is primarily dependent on the
type of hydraulic system and the location of the heating pipes in the building. If the
heating pipes are located such that they cannot be affected by frost, frost protection for
the plant will not be required.
Modular Heating Controller RMH760B
5 General functions, fundamentals
Effect
Nonurgent message; must be acknowl-
edged
Nonurgent message; must be acknowl-
edged
Nonurgent message; must be acknowl-
edged
Range
–5...10 °C
–50...2 °C
Range
Off / On
Range
Off / On
Off / On
Off / On
Range
Off / On
Range
Off / On
Factory setting
2 °C
–5 °C
Factory setting
On
Factory setting
Off
Off
Off
Factory setting
Off
Factory setting
Off
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CE1P3133en
05.02.2007