Removing The Boiler For Servicing - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Troubleshooting
Repairs
(cont.)
3. If the boiler needs to be removed:
■ Disconnect the balanced flue system.
■ Drain the boiler on the heating water and DHW
sides.
■ Disconnect the on-site cables/leads.

Removing the boiler for servicing

2.
2.
1.
2x
Fig. 31
01. Unlock the front panel on the underside (push in)
using a screwdriver.
72
8.
5.
7.
02. Swivel the front panel forwards slightly and lift
away upwards.
03. Loosen the union nut on the gas pipe.
4.
9.
4x
6.
4x
3.
10.