Viessmann VITOROND 100 VR1 40 Installation And Service Instructions Manual page 34

Burner Set-up
Electrical Connections (with Vitotronic Control)
34
Vitorond 100, VR1 40 to 63, 161 to 245 Installation and Service
(continued)
Refer to Installation Instructions Boiler Control
(for all connections to control base)
IMPORTANT
The power supply cable is shipped with the boiler control.
1. Loosen two screws, remove cover plate and discard.
2. Remove top back panel.
3. Remove front panel.
4. Place control console on boiler and fasten with two
screws removed in step 1.
WARNING
Do not kink capillaries. Proper operation of sensors is not
possible if capillaries are kinked.
IMPORTANT
Boiler temperature sensor 3 is shipped with the boiler
control.
5. Carefully push high limit and boiler temperature
sensor 3 behind front panel and into sensor wells
as far as possible. Lay excess sensor cabling and
capillary tubing on insulation.
6. Channel power supply cable (for Vitotronic 200 KW2
or Vitotronic 100 KW10B) and all other 120VAC
cabling through back opening toward boiler control.
7. Channel low voltage cables (i.e. sensor cables)
through cable opening toward boiler control.
8. Coil excess cabling and tuck between side panel and
insulation.
WARNING
Always route all cables and capillaries between nylon
backed insulation and metal enclosure panels, never
directly on cast iron heat exchanger.
9. Tighten strain reliefs.