Siemens RVL481 - Page 38

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Connection diagrams
A6 Room unit M1 Heating circuit pump or circulating pump
B1 Flow or boiler temperature sensor M3 D.h.w. charging pump
B3 Flow temperature sensor for d.h.w. M4 D.h.w. circulating pump
B31 D.h.w. tank temperature sensor / thermostat 1 M5 Collector pump
B32 D.h.w. tank temperature sensor / thermostat 2 N1 Controller RVL481
B5 Room temperature sensor S1 Remote control (operating mode)
B6 Collector sensor Ux Heat demand output
B7 Primary return temperature sensor
B71 Secondary return temperature sensor
Y1 Actuator of heating circuit valve (with contact for minimum
stroke limitation)
B9 Outside sensor Y3 Actuator of changeover valve
E1 2-stage burner Y7 Actuator for d.h.w. circuit
F1 Thermal reset limit thermostat * Wire link for locking the district heat parameters
F2 Manual reset safety limit thermostat
1
) Multifunctional output
LPB Data bus
Basic connections on the low voltage side
AC 230 V
B5B31 B7
B32
B3
B31
2541A01
D1 D2
B3
L
N
B32 M
B6
LPB
B6
DB
MB A6 MD B9 B1
M
MH1
N1
BM
BM
BM
BM
B
MBM
B
M
BM
B9
A6 B1
B7
S1
B5
L
N
Ux
DC 0...10 V
+
-
B71
BM
B71
H4 H3
Y1