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Siemens Building Technologies Basic Documentation RVD110, RVD130 CE1P2381E
HVAC Products 20 Combination with PPS units 27.05.2004
If the room unit overrides the controller’s operating mode, the controller’s operating
mode button
flashes.
20.2.3 Readjustment of the room temperature
The knob of the QAW50 is used for readjusting the nominal room temperature by a
maximum of ±3 °C.
The adjustment of the room temperature setpoint made on the controller is not affected
by the QAW50. The controller generates the setpoint from its own room temperature
adjustment plus the readjustment made with the room unit.
20.3 Combination with room unit QAW70
20.3.1 General
Room unit QAW70, with room temperature sensor, time
switch, setpoint adjustment, knob for room temperature re-
adjustment, and economy button (also termed presence
button)
The QAW70 can act on the RVD110 / RVD130 as follows:
• Overriding the operating mode
• Overriding the room temperature setpoint
• Overriding the d.h.w. temperature setpoint
• Readjustment of the room temperature
• Entry of weekday and time of day
• Change of controller’s heating program
• Display of actual values and room temperature as acquired by the controller
For this purpose, the QAW70 has the following operating elements:
• Operating mode button
• Economy button
• Knob for readjustment of the nominal room temperature setpoint
• Line selection buttons
• Buttons for the readjustment of values
20.3.2 Overriding the operating mode
The operating mode of the RVD110 / RVD130 can be overridden from the QAW70,
using the unit’s operating mode button and economy button.
To permit overriding, the RVD110 / RVD130 must be in automatic mode.
The action of the QAW70’s operating mode button on the RVD110 / RVD130 is as
follows: