INSTALLATION
6720818077 (2016/04) -
Greenstar Highflow CDi
ErP
21
4.2
Mounting frame fixing and flue opening
Safety
All relevant safety precautions must be undertaken. Protective clothing,
footwear, gloves and safety goggles must be worn as appropriate.
Running pipes behind the boiler:
• The frame should sit against the wall (not the skirting board) with
enough room for the pipe work.
• Do not cross a pipe over another.
• The area around a rear flue outlet must be avoided.
GAS AND WATER CONNECTIONS
▶ Ensure all pipe work is clean and each pipe is in the correct position
as shown opposite.
▶ Push in each pipe in turn and tighten the fitting to secure.
Fig. 19 Pipe locations
[1]
Mounting frame.
[A]
CH flow (22mm)
[B]
DHW flow (22mm)
[C]
Gas inlet (22mm)
[D]
Mains water inlet (22mm)
[E]
CH return (22mm)
Fixing the mounting frame
▶ Position the mounting frame [1] on the floor against the wall with
manifold connections [2] facing away from the wall [4] ensuring
there is enough space for the pipe work [5].
▶ Allow the minimum space from each side of the frame [1] for the
boiler overhang [6] and minimum service clearance, as shown.
▶ Ensure the mounting frame is level and mark fixing points [3].
▶ Secure mounting frame [1] to the floor using appropriate fittings (not
supplied).
▶ Clear any debris from the site.
Fig. 20 Pipe positioning
[1]
Mounting frame.
[2]
Manifold connections.
[3]
Mounting frame fixing point.
[4]
Wall.
[5]
Gas and water pipe work (not supplied).
[6]
Boiler.
4.3
Flue opening location
▶ Follow the figure 21, page 22 to mark the centre of the flue [1 & 2]
for rear opening, [2 & 3] for side opening or [1 & 4] for top opening.
Measurements shown include the minimum service clearances.
▶ Cover the mounting frame manifold assembly [1], figure 20,
page 21 to protect the manifold connections.
▶ Make an opening [X or Z] through the wall using a core drill or similar
at a size relative to the wall thickness as shown below:
Where the flue terminal can only be fitted from inside the building,
increase the opening to 150mmØ to allow the optional weather collar to
fit through the opening for 60/100 flue.
▶ Clear any debris away from the site.
WARNING:
Damage to property!
Damage caused by drilling into pipes, electrical cables,
damp proof course or other hazards.
▶ Before drilling ensure that there are no obstructions.
CAUTION:
ISOLATE THE MAINS GAS SUPPLY BEFORE
STARTING ANY WORK AND OBSERVE ALL RELEVANT
SAFETY PRECAUTIONS.
140mm
340mm
A
B
C
D
E
6720648665-09.1W
o
743mm
22mm Ø
1
All horizontal flue sections must rise away from the boiler
by 52mm per metre to ensure that condensate flows
back into the boiler for safe discharge via the condensate
waste pipe.
Wall thickness
Flue opening
60/100mmØ
Flue opening
80/125mmØ
150 - 240mm
127mmØ
152mmØ
240 - 330mm
127mmØ
152mmØ
330 - 420mm
127mmØ
162mmØ
420 - 500mm
140mmØ
162mmØ
Table 11
6720648665-08.1Wo
112
65
98.5
65
65
81
1
2
2
20
6
4
4
3
2
1
4
5
38mm
