Viessmann Vitocal 252-A Series - Page 181

181
Removing the float air vent valve with quick-action air vent valve
1.
3.
2.
4.
A B
A
B
1.4.
M8
!
G 1¼
50 ± 2 Nm
7 ± 1 Nm
1.4.
M8
!
G 1¼
20 ± 2 Nm
7 ± 1 Nm
5.
Fig. 121
A
Stainless steel float air vent valve
B
Plastic float air vent valve
Outdoor unit maintenance
Removing the hydraulic components (cont.)
6222080
Maintenance