Siemens RVL481 - Combination with Room Unit QAW70

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Siemens Heating and D.h.w. Controller RVL481 CE1P2541en
Building Technologies 28 Communication 20.05.2008
Using the knob of the QAW50, the room temperature setpoint of NORMAL heating can
be readjusted by ±3 °C.
The adjustment of the room temperature setpoint on the controller's operating line 1 will
not be affected by the QAW50.
28.1.3 Combination with room unit QAW70
Room unit QAW70 with room temperature sensor,
time switch, setpoint adjustment and room tem-
perature readjustment (setting knob)
Using the QAW70, the following functions can be performed or the room unit can act on
the RVL481 as follows:
• Overriding the heating circuit's operating mode
• Readjustment of room temperature setpoints
• Readjustment of the NORMAL d.h.w temperature setpoint
• Readjustment of room temperature
• Entry of time of day
• Overriding the heating program
• Display of the actual values acquired by the RVL481
For this purpose, the QAW70 has the following operating elements:
• Operating mode buttons
• Economy button (also called presence button)
• Knob for room temperature readjustments
• Buttons for selecting the operating lines
• Buttons for changing the values
The day of the week is calculated automatically by the controller; an adjustment from
the room unit QAW70 is not possible.
From the QAW70, the heating circuit’s operating mode of the RVL481 can be overrid-
den. This is accomplished with the operating mode button and the economy button.
To enable the room unit to act on the RVL481, the following operating conditions must
be satisfied:
• AUTO mode for heating circuit
• No holiday period active, no manual operation
The impact of the QAW70's operating mode buttons on the RVL481 is as follows:
Operating mode QAW70 Heating circuit’s operating mode RVL481
; temporary overriding with economy button
possible
Continuously NORMAL
or continuously REDUCED
heating, depending on the economy button, perma-
nent overriding
Protection
Knob for room tempera-
ture readjustments
Note
Overriding the heating
circuit's operating mode