Siemens RVL471 - Page 97

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Siemens Building Technologies Basic Documentation RVL471 CE1P2524E
HVAC Products 27 Communication 23.10.2002
• 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 weekday and time of day
• Overriding the heating program
• Display of the actual values acquired by the RVL471
For this purpose, the QAW70 has the following operating elements:
• Operating mode button
• Economy button (also called presence button)
• Knob for room temperature readjustments
• Buttons for selecting the operating lines
• Buttons for changing the values
From the QAW70, the heating circuit’s operating mode of the RVL471 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 RVL471, 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 button on the RVL471 is as follows:
Operating mode
QAW70
Heating circuit’s operating mode RVL471
; temporary overriding with economy button possible
Continuously NORMAL or continuously REDUCED
heating, depending on the economy button
STANDBY
With the knob of the QAW70, 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 QAW70.
If “1” (slave with no remote operation) is entered on operating line 178 ("Source of time
of day") of the RVL471, the time of day on the QAW70 cannot be changed.
Operating
line of the
QAW70
Function, parameter Effect on RVL471, notes
1 Setpoint of NORMAL heating Changes operating line 1 on the RVL471
2 Setpoint of REDUCED heat-
ing
Changes operating line 2 on the RVL471
3 D.h.w temperature setpoint Changes operating line 14 on the RVL471
with plant types with d.h.w. heating
4 Weekday (entry of heating
program)
Corresponds to operating line 4 on the
RVL471
5 1. Third heating period, start
of NORMAL heating
Changes operating line 5 on the RVL471
6 1. Third heating period, start
of REDUCED heating
Changes operating line 6 on the RVL471
7 2. Third heating period, start
of NORMAL heating
Changes operating line 7 on the RVL471
Overriding the heating
circuit’s operating mode
Knob for room tempera-
ture readjustments
Effect of individual
QAW70 operating lines
on the RVL471