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• Before installing the boiler on an existing
c.h. system, flush it out thoroughly before
fitting the boiler, so as to remove muddy
deposits.
It is advisable to equip the system with a
sediment filter, or use a water-treatment
product in the circulating water.
The latter option in particular, not only
cleans out the system, but also has an anti-
corrosive effect by promoting formation of a
protective skin on metal surfaces and neu-
tralising gases present in the water.
We recommend the use of a suitable uni-
versal inhibitor to protect the c.h. system
from corrosion.
6.3
Installing the bracket
Precautions
Before mounting the bracket, check that the
dimensions for fitting the exhaust fume duct
are complied with (refer to the leaflet includ-
ed with the flue kit, packed separately).
Utilise the paper template supplied with the
boiler to determine the fixing position for
the bracket and boiler. Securely mount the
bracket to the wall using appropriate fixings
suitable for the type of wall construction and
capable of supporting the total (wet) load.
Refer to the weight given in the technical
data tables specific for each model.
6.4
Overall dimensions
The boiler respects the following dimensions:
A Flue outlet / air intake pipe (co-axial)
B Flue outlet pipe ø 80 mm (twin kit)
C Air intake pipe ø 80 mm (twin kit)
D Electric connections area
E C.h. flow
F Gas
- 32 -
INSTALLATION
G C.h. return
H Condensate drain connection area
50
E
Fig. 6.2
6.5
Functions
Gas, c.h. return, c.h. flow
Pressure relief valve
Condensate drain
sizes in mm o.d.
6.6
• Take the protective caps off the boiler
pipework.
• Thoroughly clean the connections.
• Mount the boiler on its bracket.
B
C
ø80
ø80
ø100
47
73
200
400
115
142
35
16
D
257
100
H
F
G
117
129
200
Joints
Mounting the boiler
A
198
A
B
C
F
140
E - G
130
350
Pipe sizes
(o.d)
ø 22
ø 15
ø 25 (plastic)
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