Ravenheat RSF 82E, Installation And Servicing Instructions

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Fig. 43
5.9
5.9.1
5.92
5.10
5.10.1
5.11
5.11.1
GAS CONNECTION (Fig. 46)
A minimum gas pressure of 20 mbar (6 in
w.g.) must be available at the boiler inlet at
full flow rate.
Fit gas service cock to the boiler via the
union nut and connect gas pipe.
Do not overtighten and use another
spanner as a counter force to avoid
straining internal connections.
Important: Consult sect. 4.5.1
CENTRAL HEATING CONNECTION
(Fig. 46)
Before any central heating connections are
made to the boiler all system valves should
be opened and the system thoroughly
flushed out with cold water.
- Connect the central heating return pipe
to the isolating cock marked CHR.
- Connect the central heating flow pipe to
the isolating cock marked CHF.
-
Pipe dimension’s and position are marked
on template supplied and Fig. 49 A
DOMESTIC HOT WATER (Fig. 46)
The domestic hot water circuit does not need
a safety valve but it is essential to ensure that
the pressure of the cold water supply does
not exceed 10 bar. If in doubt it is advisable to
install a pressure reducing valve. The
minimum pressure needed to operate the
domestic hot water system is 0.5 bar
with a flow of approx 3 Lts per min. The
regulator screw on the cold water outlet of
the diverter valve may be adjusted to
prevent excess volume flow (Fig. 53
COMMISSIONING SECTION). Flush out all
foreign matter from the supply pipe before
connecting to the appliance.
- Connect the 15 mm. cold water pipe to
the stop cock to the appliance inlet
marked DCW.
Fig. 44
Fig. 45
- Connect the 15 mm. hot water pipe with
a suitable connection.
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