Cu3A - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Installation Sequence
Preparing Boilers for Cascade Mode - Vitocrossal 300 CU3A
12
Vitotronic 200, HO1B and 300-K, MW2C Installation/Service
Accessing the control electrical connections box
1. Remove the screws from the top panel and set aside.
2. Slide the top panel to the rear of the boiler and lift up.
3. Remove the retaining nuts from the control
connection cover and set aside.
4. Slide the control connection cover to the rear of the
boiler and lift up.