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Building Technologies Modular Heating Controller RMH760B CE1P3133en
HVAC Products 5 General functions, fundamentals 05.02.2007
Number Text Effect
5212 >1 hol/sp day prgm HC 2 Nonurgent message; must be acknowl-
edged
5222 >1 hol/sp day prgm HC 3 Nonurgent message; must be acknowl-
edged
5232 >1 hol/sp day prgm DHW Nonurgent message; must be acknowl-
edged
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 Range Factory setting
Frost prot for plant ON (cycling) –5…10 °C 2 °C
Frost prot for plant ON (cont) –50…2 °C –5 °C
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 Range Factory setting
Frost protection for the plant Off / On On
Main menu > Settings > DHW > Limitations
Operating line Range Factory setting
Frost prot plant primary pump Off / On Off
Frost prot plant secondary pump Off / On Off
Frost prot plant circulating pump Off / On Off
Main menu > Settings > Primary controller > Limitations
Main menu > Settings > Main controller > Limitations
Operating line Range Factory setting
Frost protection for the plant Off / On Off
Main menu > Settings > Boiler > Limitations
Operating line Range Factory setting
Frost prot boiler pump Off / On Off
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.
General settings
Settings per function
block
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