Siemens RVA63.242 - Frost Protection Setpoint of Room Temperature (TRF)

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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of end-user settings 26.03.2001
3.18 Frost protection setpoint of room temperature
(TRF)
Protection of building against frost.
Caution
This function is ensured only when the heating plant operates properly!
Frost protection is an automatic switching on function which is activated when the
outside temperature falls below freezing.
Setting range Unit Factory setting
4...TRRw °C 10
TRRw Reduced room temperature setpoint (setting one line 27)
This setting will change the frost protection setpoint of the room temperature.
In operating mode , the room temperature is prevented from falling below a certain
level. This means that the frost protection setpoint of the room temperature will be
maintained.
0 2 4 6 8 10 12 14 16 18 20 22 24 26
°C
2373Z10
Room temperature setpoint setting ranges
27 Setting "Reduced room temperature setpoint”
28 Setting "Frost protection setpoint of room temperature”
Benefit
Description
Setting
Effect
Frost protection for the
building