Maximum Forward Shift Of Optimum Start Control - Siemens RVA47.320 User Manual

Cascade controller for modulating gas-fired boilers
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Diagram
Benefit
Description
Setting
Effect
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Siemens Building Technologies
HVAC Products
The readjustment of the slope in this temperature range is weighed with factor f2
and adaption sensitivity 2 (line 37
• No adaption (range
At attenuated outside temperatures above 12 °C, the heating curve will not be
adapted.
Example using a nominal room temperature setpoint of 20 °C.
f
1
0,5
0
20
12
f
Factor
f1
Factor for parallel displacement
f2
Factor for slope
TAged Attenuated outside temperature
ZAF1
Adaption sensitivity 1 (line 36
ZAF2
Adaption sensitivity 2 (line 37
4.34
Maximum forward shift of optimum start
control

Maximum forward shift of optimum start control.

Maximum forward shift is a limit function that defines the range of optimum start control.
Setting range
00:00...06:00
00:00
Optimum start control switched off
00:10...06:00 Optimum start control switched on
Basic Documentation RVA47.320
Description of the heating engineer settings
).
OEM
):
f
2
f
1
4
ZAF1
ZAF2
)
OEM
)
OEM
Unit
hh:mm
-4
-12
Factory setting
00:00
TA
ged
CE1P2379E
15.07.2002

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