TMS-UT-0114-T01-1
1.6. Frost protection
1.6.1. Avaliability
Frost protection, as boiler’s function, is limited to Termo Extra boilers with options
C
and
W
, Termo
Blok boilers with option
C
and Termo PTV boilers. In the case of other versions of boilers frost
protection can be provided by the usage of appropriate room thermostat. When frost protection is
controlled by room thermostat please consult room thermostat manuals for more details.
Following topics explain how frost protection is working when it is a boiler controlled function (options
C,W).
1.6.2. Domestic water
If the boiler is on for supply and only warm water conditioning is on or only heating or both, the
protection from freezing of water in warm water container switches on automatically when the
temperature sensor of warm water container reads the value below 7°C, signaling switching on by
blinking display, as well as the LED diode of the heater and warm water conditioning, regulating the
warm wear container temperature to 7°C.
1.6.3. Central heating
If the boiler is on for supply and heating or both (heating and warm water conditioning) are off, the
protection from freezing of water in the central heating system switches automatically on if the water
temperature sensor in the boiler reads the value below 8°C. In this case the temperature of water in
the boiler is maintained at 8°C, until the conditions of possible freezing disappear.
Switching on is
signaled by the blinking display, as well as by the LED diode of the heater and the boiler.
In this case, domestic water conditioning has priority.
In order for the freezing protection system of central heating to operate, the room thermostat should be
in the position of freezing protection, too (otherwise, the circulation pump of central heating would not
operate).
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