Burner Inspection And Maintenance; Checking The Electrical Connections; Filling The Heating System With Water And Venting The System - Viessmann Vitocrossal CRU 800 Service Instructions Manual

Commissioning, inspection, maintenance

Burner inspection and maintenance

Steps applicable to the MatriX-Disk burner are descri-
bed in separate instructions.

Checking the electrical connections

Check all electrical connection for firm seating.

Filling the heating system with water and venting the system

!
Please note
Unsuitable water quality can damage the boiler
body.
Only fill the boiler with water that complies with
the "Water quality requirements": See page 23
10
"MatriX-Disk burner" service instructions
Enter the amount of fill water, the water hardness and
the pH value in the report on page 25.