Benchmark Alpha InTec 24X Installation And Servicing Instructions page 17

Seasonality valve
Filling
loop
Condensate
trap
Condensate
discharge
pipe
20
65 70
C
A - Heating fl w (22 mm)
B - Hot water outlet (15 mm)
4.6 FIT THE FLUE - Figs. 14 and 15
The following procedure applies to fitting an Alpha CD Easy-Flue to both rear or side xit flue - ho izontally only.
1. The CD Easy-Flues are suitable for use in the flue length anges shown in the tables below.
Note: Where the length is less than the minimum or more than the maximum, refer to Section 4.7.
CD Easy-Flue
(B)
Note: Add 45 mm to
dimension B if the wall jig is
used.
2. Determine the overall length (L) of flue required, (see Fig 16) as follows:-
Rear flu
Side flu
3. Adjust the telescopic section of the flue to the distance 'L', ensu ing that the two labels marked 'TOP' are aligned, then
seal and secure the joint between the ducts with the sealing tape supplied.
Note: Always ensure that there is a minimum overlap of 25 mm when fully extending the telescopic section.
4. Pass the flue assem ly through the wall (from inside or outside).
Note: Internal fitting - If there is no access to make good the outside wall, locate the outside (black) flue sealing collar
onto the outer duct of the flue immediately before the terminal grille onto the location provided. Push the flue assembly
through the 130 mm flue hole, so that the collar completely passes through the wall. Then pull the flue assembly back into
the correct position. Visually check that the collar is sealing the outside wall and that it is not restricting any of the openings
of the flue te minal.
Filling loop taps
95 37 58 70 45
B D F E A
C models
C - Gas inlet (22 mm)
D - Cold water mains inlet (15 mm)
Fig. 13b - With wall jig
B (mm)
Max Min
500 mm 525 300
1000 mm 970 760
Fig. 14
L = wall thickness (B) + 60 mm (105 mm if the wall jig is used)
L = wall thickness (B) + distance between boiler and wall (C) + 145 mm
Seal Joint with Tape
Condensate discharge pipe
Cold water
inlet filter
Heating return
valves
Heating flow
valve
Heating drain
point
Cyclone drain
point
Wall jig
23
20
65 70
C
Side Flue
L
Condensate trap
95 37 58 70 45
B D F A
E
X models
E - Heating return (22 mm)
F - Pressure relief valve (15 mm)
(B + C)
CD Easy-Flue
500 mm
1000 mm
Fig. 15
Fig. 16
Alpha InTec C and X - Installation
Cold water
inlet filter
Heating return
valves
Heating flow
valve
Heating drain
point
Cyclone drain
point
Wall jig
23
B + C (mm)
Max Min
440 215
885 675
17