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Siemens Heating controllers RVP201 and RVP211 CE1P2464en
Building Technologies 3 Technical design 12.12.2007
3.9 Interactions with room units
3.9.1 General
Room units can act on the RVP201/211 only if the controller works in one of the two
automatic modes
or
The room temperature acquired by a room unit is adopted by the RVP201/211 at
terminal A6. If the room temperature acquired by the room unit shall not be consid-
ered by the control functions, the room authority must be set to 0 %. In that case, all
the other room unit functions will be maintained
If an inadmissible room unit is connected, the RVP201/211 decides that a fault has
occurred and the room unit will be switched to a passive state, which means that any
actions performed on the room unit have no effect
3.9.2 Interactions with room unit QAW50
Room unit QAW50 with room temperature
sensor and room temperature readjustment
(setting knob)
The QAW50 can act on the RVP201/211 in the following manner:
Overriding of the operating mode
Readjustment of the room temperature
For this purpose, the QAW50 has three operating elements:
Operating mode slider
Economy button (also called presence button)
Setting knob for room temperature readjustments
From the QAW50, the current operating mode of the RVP201/211 can be overridden.
This is accomplished with the operating mode slider and the economy button.
To enable the QAW50 to act on the controller, the latter must meet the following operat-
ing conditions:
Automatic mode
A6–MD not bridged (that is, external changeover switch, if present, must be open)
The actions of the QAW50 operating mode slider on the RVP201/211 are as follows:
Operating mode
QAW50
Operating mode RVP201/211
Automatic mode
or ; temporary overriding with QAW50
economy button possible
Normal or setback mode, depending on economy button, per-
manent overriding
Protection mode
With the setting knob of the QAW50, only the room temperature setpoint of normal
heating can be readjusted by a maximum of ±3 °C. This readjustment is added to the
setting made on the RVP201/211.
Overriding the operating
mode
Setting knob
28


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