Checking The High Limit Safety Cut-Out Setting; Filling The Heating System With Water And Venting - Viessmann Vitocrossal 300 Service Instructions Manual

Commissioning, inspection, maintenance

Checking the high limit safety cut-out setting

The high limit safety cut-out must not be set higher
than 110 °C. If required, set it to a maximum of 110 °C.

Filling the heating system with water and venting

Record the volume filled, water hardness and pH value
on page 24.
Permissible boiler operating pressure: 6 bar (0.6 MPa).
10
Control unit installation and service instructions
!
Please note
Unsuitable water quality can result in damage to
the boiler body and the heating system.
Fill the heating system with water and operate it
in accordance with VDI Guideline 2035. The
total of alkaline earths must not exceed
3
0.02 mol/m (total hardness 0.11 °dH).
Observe the "Water quality requirements" on
page 22.