Bpt TH 450 - Wiring Diagrams and Key

13
L
N
NC
NA
C
1
2
U2
LOAD
M
CLOSED
OPEN
Relay contacts
C = common
NO = normally open contact
NC =normally closed contact
Remote control inputs
1 input
2 input
Loads
U1 = boiler, circulation pump, solenoid valve, etc.
U2 = motorised valve
L
N
NC
NA
C
1
2
U1
LOAD
L
N
NC
NA
C
1
2
Fig. 9Fig. 7
Fig. 8