8
DO NOT connect to OpenTherm terminals unless your boiler is OpenTherm Association approved and has the OpenTherm Logo.
2.4 Connection description
I A - Boiler connection
I B - Pump / Valve connection
NO
COM
WQ610
WQ610
BOILER C
ONNEC
TION
*
B
A
WQ610
OPENTHERM*
L
AC 230V
N
N
L
L
N
N
L
L
AC 230V
N
N
L
L
N
L
AC 230V
N
MAX
3 (1) A
NO
COM
NO
COM
WQ610
WQ610
BOILER C
ONNEC
TION
*
B
A
WQ610
OPENTHERM*
L
AC 230V
N
N
L
L
N
N
L
L
AC 230V
N
N
L
L
N
L
AC 230V
N
MAX
3 (1) A
NO
COM
NO
COM
WQ610
WQ610
BOILER C
ONNEC
TION
*
B
A
WQ610
OPENTHERM*
L
AC 230V
N
N
L
L
N
N
L
L
AC 230V
N
N
L
L
N
L
AC 230V
N
MAX
3 (1) A
NO
COM
L, N
- power supply 230V
NO, COM
- voltage-free output
A, B
- OpenTherm Communication Wire
- fuse
Legend:
Symbols explanation:
Valve
Pump
Boiler - Boiler connection*
-
Boiler’s contacts for ON/OFF
thermostat (according to the
boiler’s instructions)
M
(ON / OFF)
OpenTherm