Plant Types Rva47.320 - No. 66 - Siemens RVA47.320 User Manual

Cascade controller for modulating gas-fired boilers
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Note
Hydraulic circuit
Type of unit
Display of plant type
Heating curve (line 17)
Pump function Q1 (line 95)
Important
Electrical connections
Legend
156/166
Siemens Building Technologies
HVAC Products
8.12

Plant types RVA47.320 - no. 66

The plant type no. is identical with the number displayed on line 53.
Control of a single BMU or cascade control of up to four BMUs.
D.h.w. heating with charging pump through the RVA47.320.
Control of the pump heating circuit by the RVA47.320 based on the heat demand signal
received via input H1.
1
2
BMU 1
BMU 2
Other LPB capable controllers on the consumer side signal the RVA47.320 their current
heat demand directly via LPB.
The heat demand signal for the pump heating circuit is generated via input H1.
In addition, the controller itself can generate a weather-compensated flow temperature
(setting the heating curve to a valid value).
H1
B3
B70
M
B
M
B
M
B
B3
H1
B7
Q3
Q1
F1
N
L
For a detailed legend, refer to page 158.
Basic Documentation RVA47.320
Application examples
3
BMU 3
BMU 4
B10
B9
A6 / BMU
M
B
M
B
PPS
MD
M
B10
B9
A6
N1
L
B10
B3
4
B70
RVA47.320
66
--- (inactive or 2.5...40
5 (pump H1)
LPB
MB
DB
N
CE1P2379E
15.07.2002

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