Overall Dimensions; Joints; Mounting The Boiler - Biasi Advance Plus 25C User Manual And Installation Instructions

6.4

Overall dimensions

The boiler respects the following dimen-
sions:
C B
Ø80 Ø80
120 120
400
60 115
25
D
G H I
65 52 64
E
200
Fig. 6.2
A Flue outlet / air intake pipe (co-axial ø
100/60)
B Flue outlet pipe ø 80 mm (twin kit)
C Air intake pipe ø 80 mm (twin kit)
D Bracket
E Electric connections area
F Condensate drain connection area
G C.h. flow
H D.h.w. outlet
I Gas
J D.c.w. inlet
K C.h. return
- 44 -
INSTALLATION
A
Ø80
C
Ø100
149
200
A
B
C
115
25
G
H
I
J
K
97
J K
65 290
50
F
6.5

Joints

The boiler uses the following fittings:
Functions
Gas, c.h. return, c.h. flow
D.c.w. inlet
D.h.w. outlet
Pressure relief valve
Condensate drain
sizes in mm o.d.
Condensate drain to be realised with min.
pipe ø 30 mm
6.6

Mounting the boiler

• Assemble the pre-piping kit bracket by
screwing the four screws "L" Fig. 6.3.
• Fix the water valves "O" (½") using the
forks "M" to the prepiping kit bracket.
• Fix the c.h. valves "N" and the gas cock
"P" with the remaining forks "M" to the
prepiping kit bracket.
• Mount the bracket of the prepiping kit to
the wall (See also section "Installing the
bracket" pag. 43)
• Fix the Ø 22 mm copper pipes "Q – U" to
the valves "N – P" using the ¾" gaskets
and the Ø 15 mm copper pipes "R – T" to
the valves "O" using the½" gaskets.
• Take the protective caps off the boiler
pipework.
• Thoroughly clean the connections.
• Mount the boiler on its bracket.
• Fix the c.h. valves "N" and gas cock "P"
(¾") to the boiler using the ¾" gaskets
• Fix the domestic water inlet and outlet
valves "O" (½") to the boiler using the ½"
gaskets
Pipe sizes
(o.d)
ø 22
ø 15
ø 15
ø 15
ø 25 (plastic)