V
AC
G
AF
1
R
2
M
3
4
10
INSTALLER
USER
MAINTENANCE TECHNICIAN
TECHNICAL DATA
1.4 BOILER CONNECTION GROUP OPTIONAL.
e connection unit consisting of all the necessary parts to
perform the hydraulic and gas system connections of the appli-
ance comes as optional kit, perform the connections based on
the type of installation to be made and according to the layout
shown in Fig 4.
Key:
V - Electric connection
G - Gas supply
AC - Domestic hot water outlet
AF - Domestic hot water inlet
M - System ow
R - System return
1 - System lling cock
2 - System draining valve
3 - 3-bar safety valve drain tting