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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
Heating circuits
3.17 Reduced setpoint of room temperature (TRRw)
Lower room temperatures during non-occupancy times, e.g. during the night.
Energy savings.
The heating system has 3 different setpoints that can be adjusted:
The reduced room temperature setpoint described here.
The nominal room temperature setpoint (to be adjusted with the setpoint knob).
The frost protection setpoint of the room temperature (setting on line 28).
Setting range Unit Factory setting
TRF...TRN °C 16
TRF Room temperature for frost protection (setting on line 28)
TRN Nominal room temperature setpoint (to be adjusted with the setpoint knob)
If the required temperature level cannot be set, the adjustment made with the setpoint
knob may be too low. It is not possible to set a value above the adjustment made with
the setpoint knob.
2373Z10
Room temperature setpoint setting ranges
27 Setting "Reduced room temperature setpoint ”
28 Setting "Frost protection setpoint of the room temperature”
With this setting, the reduced room temperature setpoint will change to the level
required outside the heating periods .
The heating periods are in accordance with the settings made on lines 6 through 11.
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