Knob For Room Temperature Readjustments; Controller With Operation Lock; Combination With Room Unit Qaw70; General - Siemens RVD230 Basic Documentation

Siemens Building Technologies
HVAC Products
Operating mode QAW50
If the room unit overrides the controller's operating mode, the operating mode button
on the controller flashes.

30.2.3 Knob for room temperature readjustments

Using the knob of the QAW50, the nominal room temperature setpoint can be read-
justed by a maximum of ±3 °C.
The adjustment of the room temperature setpoint on the controller will not be affected
by the QAW50. The controller generates the setpoint from its own room temperature
adjustment plus the readjustment made with the room unit.

30.2.4 Controller with operation lock

The room unit acts fully on the controller also when an operation locking function on the
controller has been activated (operating lines 195 and / or 196: Setting
30.3

Combination with room unit QAW70

30.3.1 General

Using the QAW70, the following functions can be performed or actions on the RVD230
achieved:
• Overriding the operating mode
• Overriding the room temperature setpoints
• Overriding the d.h.w. setpoint
• Readjustment of room temperature
• Entry of weekday and time of day
• Changing the controller's heating program
• Display of the actual values and the room temperature acquired by the controller
For this purpose, the QAW70 has the following operating elements:
• Operating mode button
• Economy button (also called presence button)
• Knob for readjusting the nominal room temperature setpoint
• Buttons for selecting the operating lines
• Buttons for changing the values
Basic Documentation RVD230
30 Combination with PPS devices
Operating mode RVD230
Automatic operation; temporary overriding with econ-
omy button of the QAW50 possible
Economy button off (lit): Nominal room temperature
Economy button on (not lit): Reduced room temperature
Standby
Room unit QAW70, with room temperature sensor, time
switch, setpoint adjustment, knob for room temperature
setpoint readjustments and economy button.
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CE1P2383en
27.05.2004