External Switching Of Heating Program/External Heat Demand - Viessmann Vitodens 200 WB2 11-44 Installation Instructions Manual
Wb2 series
wall-mounted, gas-fired condensing boiler.
for natural gas and liquid propane
heating input ng 55 to 230 mbh
16 to 67 kw
heating input lp 55 to 214 mbh
16 to 63 kw
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Electrical Connections
External switching of heating program/External heat demand
1.
X4
2.
1 2
3
4
External burner disable
X6
1.
1 2
3
4
(continued)
Control Connections
IMPORTANT
Load capacity of the connection is 10
mA at 24 V–.
For external call for heat function:
See Start-up/Service
Instructions with regard to
changing the coding addresses.
1. Remove jumper between "X4.1" and
"X4.2".
2. Connect switch contact to
connector "X4".
3. Set coding addresses 011, 027, and
0A2.
See Start-up/Service
Instructions with regard to
setting coding addresses.
1. Connect switch contact to connector
"X6".
IMPORTANT
The potential-free contact must be
field supplied.
See Start-up/Service
Instructions regarding
changes to the plug-in
jumper "X6" and coding
addresses.
41
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