Re-Assembling And Filling The Loading Cylinder; Checking The Expansion Vessel And System Pressure - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Commissioning, inspection, maintenance

Re-assembling and filling the loading cylinder

E
Fig. 38
1. Reconnect the loading cylinder to the pipework.
2. Insert new gasket
A
3. Fit flange cover and tighten eight screws
B
with a maximum torque of 25 Nm.

Checking the expansion vessel and system pressure

A
Fig. 39
48
underneath flange cover
B
D
D
C
B
A
4. Push earth cable
. 5. Fit cover (two-part design up to 26 kW).
E
6. Fill the loading cylinder with potable water.
onto the tab.
C