14
Fixing screw with sealing facility
Connection diagrams
A6
Room unit
en
B1
Flow or boiler temperature sensor
B3
Flow temperature sensor for d.h.w.
B31
D.h.w. tank temperature sensor / thermostat 1
B32
D.h.w. tank temperature sensor / thermostat 2
B5
Room temperature sensor
B6
Collector sensor
B7
Primary return temperature sensor
B71
Secondary return temperature sensor
B9
Outside sensor
E1
2-stage burner
F1
Thermal reset limit thermostat
F2
Manual reset safety limit thermostat
LPB
Data bus
Basic connections on the low voltage side
L
A6
LPB
D1 D2
B M
L
DB MB A6 MD B9
N
N
Building Technologies
M1
M3
M4
M5
N1
S1
Ux
Y1
Y3
Y7
*
1
)
B9
B1
B3
B31
B M
B M
B M
-
+
Ux
B1 M
B3
B31
74 319 0618 0 a
Heating circuit pump or circulating pump
D.h.w. charging pump
D.h.w. circulating pump
Collector pump
Controller RVL481
Remote control (operating mode)
Heat demand output
Actuator of heating circuit valve (with contact for minimum stroke
limitation)
Actuator of changeover valve
Actuator for d.h.w. circuit
Wire link for locking the district heat parameters
Multifunctional output
B7
S1
B32
B5
B71
B M
B M
B M
B M
B7
M H1
B32
B5
M
B71
17.04.2008
Y1
B6
B M
H4 H3
B6
N1
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