Dimensions; Connections - Alpha InTec 50CS Installation, User And Servicing Instructions

1.2 dIMENSIONS

Flue elbow centreline
850
650
Height (mm)
850
Gas
A
3/4"

1.3 CONNECTIONS

Gas connection:
The boiler is designed to operate with Natural
gas (Cat I2H 2H - G20 - supplied at 20 mbar)
or Propane gas (Cat I3P 3P - G31 - supplied
at 37 mbar). Supply pipes must be the same
as or larger than the 3/4" boiler fitting. Before
connecting the gas line, carefully clean inside all
the supply pipes to remove any residue that could
impair boiler performance. Also make sure the
gas corresponds to that for which the boiler is
prepared (see boiler data-plate).
The gas supply pipe must be suitably dimensioned
according to current regulations in order to
guarantee correct gas flow to the burner even
in conditions of maximum boiler output and
to guarantee appliance efficiency (technical
specifications).
Storage tanks (LPG):
- New LPG storage tanks may contain residual
inert gases (nitrogen) that degrade the mixture
delivered to the appliance causing functioning
anomalies.
- Due to the composition of the LPG mixture,
layering of the mixture components may occur
during the period of storage in the tanks. This
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
Alpha Intec 50CS
133
307
44
20
23
973
Width (mm) Depth (mm)
650 600
Connections
Domestic hot water Central heating
B C E
1/2" 1/2" 3/4"
Hydraulic connection:
Important: in order not to void the warranty
before making the boiler connections, carefully
flush the heating system (pipes, radiators, etc.)
with de-scaling products to remove any deposits
that could compromise correct boiler operation.
For further detail see Section 1.12.
Power supply cable
57
H
211
65
70
600
A - Gas
B - Domestic hot water outlet
C - Cold water inlet
D - Condensate outlet
E - Central heating return
F - Central heating flow
F
G - DHW temp/press relief valve
3/4"
H - CH pressure relief valve
I - Secondary circuit (optional)
Mains cold water
Safety valve
DHW CH return
4
F C I
A E B
G
320
60 60 80
45 45 40
40 40
6
814
D
Fig. 1-1
CH flow
Gas
Fig. 1-2