Connections On The Heating Water And The Dhw Side - Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual

Installing the boiler

Connections on the heating water and the DHW side

Shown with connection sets for finished walls (accessories)
A Heating flow R¾
B DHW R½
C DHW circulation R½ (separate
accessory)
Connection on the domestic hot water side
The DHW expansion vessel, available
as an accessory, is installed in the cold
water supply inside the boiler.
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D Cold water R½
E Heating return R¾
Separate installation instructions