Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
5 Installation
83311002 1/2018-03 La
32-132
5.6.2 Connect external three way valve
Observe the instructions for the electrical installation [ch. 5.6].
Control via output MFA1 or MFA2
Connect three way valve to wiring diagram whilst observing actuator manual.
Set parameter
13
or
14
to
4
.
230 V/50 Hz
L N PE
230V
L N
230V
L N
M1
L N
MFA1
L N
MFA2
L N
H1
L E
H2
L E
VA1
1 2
16A
1 2
3
1 2
3
1
brown
2
black
3
blue
Control via output VA1
Connect three way valve to wiring diagram whilst observing actuator manual.
Set parameter
15
to
4
.
230 V/50 Hz
L N PE
230V
L N
230V
L N
M1
L N
MFA1
L N
MFA2
L N
H1
L E
H2
L E
VA1
1 2
16A
1 2
3
1
brown
2
black
3
blue