Connection diagrams
A6
Room unit
B1
Flow or boiler temperature sensor
B5
Room temperature sensor
B7
Return temperature sensor (primary circuit)
en
B71 Return temperature sensor (secondary circuit)
B9
Outside sensor
E1
Two-stage burner
F1
Thermal reset limit thermostat
F2
Manual reset safety limit thermostat
Basic connections on the low voltage side
L
A6
B9
LPB
D1
D2
B
M
L
DB MB
A6 MD
B9
N
N
Basic connections on the mains voltage side
Left: Connections for plant types 1, 3, 4 and 6 (mixing valve or district heat)
Right: Connections for plant types 2 and 5 (boiler with a two-stage burner)
L
L
F1/F4
F2/F5
N
Y1/K4
Y2/K5
Y1
Y2
N
Y1
N
Building Technologies
B7
S1
S2
B1
B
M
B
M
-
+
B1 M
Ux
B7
M
H1
H2
L
F3
L
Q1
N
F2/F5
N1
M1
N
74 319 0617 0 a
LPB Data bus (Local Process Bus)
M1
Heating circuit or boiler pump
N1
Controller RVL480
S1
Remote control operating mode
S2
Remote control flow temperature setpoint
Ux
Heat demand output
Y1
Actuator of heating circuit (with contact for minimum
stroke limitation)
*
Wire link for locking the district heat parameters
B5
B71
Y1
B
M
B
M
B5
M
B71
H4
H3
M
N1
F1/F4
Y2/K5
Y1/K4
F1
F2
1.
2.
E1
17.04.2008
F3
Q1
N1
M1
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