Installation Manual
SYSTEM BOILER – Cod. 99951NA – November 2002
7
BOILER INSTALLATION - MINIMUM DISTANCES FOR FIXING TO WALL
To allow access inside the
boiler for maintenance
operations, the minimum
distances shown in fig. 2
must be kept.
To aid installation, the
boiler is supplied with a
template (see fig. 1) for
advance location of
connections to pipes. In
this way, you may simply
hook up the boiler when
the wall fixings are
completed (fig.1).
To install the boiler
proceed as follows (see
fig.2):
1.
Use a spirit level (min.
25mm in length) to
draw a line on the wall
where the boiler is to
be installed.
2.
Position the top of the
template on the line
drawn with the spirit
level, keeping to the recommended distances; now mark the two points
where the two fixing screws or brackets are to go, then mark the points
where the water and gas connections will go;
3.
Take away the template and proceed by connecting up the connectors
supplied with the boiler to the hot and cold water supplies, gas system
and heating pipes;
4.
Mount the boiler on the wall using the fixing screws or brackets and
make all necessary pipe connections.
WATER CONNECTIONS
To facilitate installation, the boiler is equipped with a fittings kit.
IMPORTANT:
Before connecting the heating system pipes, carefully clean the system to
prevent residual dirt from entering into circulation and negatively affecting
boiler function. Install a funnel with discharge under the safety valve
(calibrated to 3 bar) to collect water in case of leaking due to overpressure. No safety valve is needed for the domestic hot water
circuit, but if the cold main inlet pressure exceeds 5 bar a pressure reducing value should be fitted.
ADVICE AND SUGGESTIONS FOR DEALING WITH VIBRATIONS AND NOISE FROM THE SYSTEM
avoid using pipelines of reduced diameter;
avoid the use of tight bends and adapters in important sections;
clean out the system thoroughly before connecting up the boiler in order to eliminate any residue left in the pipes and radiators.
N.B.:
Make sure that the water and heating pipes are not used as earth connections for electrical apparatus.
120
60
100
=
790 948
80
320
24
17
125
182
24
17
KIT B
KIT A
790
450
=
894
125
320
182
60
100
870
790
790
924
KIT C
118
80
m
ax
. 3
000
80
80
Fig. 1
G
R
R
W/VALVES
FIXING JIG
G
A
FITTINGS KIT
A
MINIMUM DISTANCES IN mm.
45
0
60
450
60
Fig. 2
Fig. 3
R
HEATING RETURN ¾”
G
GAS ½”
F
COLD WATER INLET ½”
A
HEATING FLOW ¾”
