Supplied By www.heating spares.co Tel. 0161 620 6677
should exceed 110 litres, an additional
ves sel should be installed on the return
to the combination boiler from the heating
system (Fig 7) Guidance on vessel sizing
is given in (Table 3).
Reference should be made to British
Gas Publications «Material and
Installation Specifi cations for Domestic
Central Heating and Hot Water» Draining
taps should be at least 1/2” in BSP
nominal size and be in accordance with
BS 2879.
4.8.9
Installation to an existing central heating
system
Before installing a new boiler to an existing
system, fl ush out the old system with a rec-
ommended descaling agent.
It is most important that the correct concen-
tration of the water treatment product
is maintained in accordance with the
manu facturers’ instructions .
If the boiler is installed in an existing system
any unsuitable additives
MUST be
removed
by thorough cleansing BS 7593 1992
details the steps necessary to clean
domestic central heating system Also
check pipework and renew any corrod ed
pipework or fittings Valve glands must be
repacked or replaced wherever neces-
sary and any defective controls exchanged.
WATER TREATMENT
This boiler has a secondary
ALUMINIUM alloy heat exchanger.
Ravenheat recom
mended
only
the
use of FERNOX-COPAL S E N T I N E L
X 1 0 0 o r S A L A M A N D E R C U R ROSION
GUARD water treatment products,
which must be used in accordance
with the manufacturers instructions
For further information contact
Fernox Manufacturing Co Ltd
Tel 01799 550811
Sentinel Division Betz Dearborn Ltd
Tel (0151) 424 5351
Salamander (Eng)Ltd
Tel (0121) 3780952/4508
4.10 ELECTRICAL SUPPLY
Warning: this appliance must be
earthed
4.10.1
External wiring to the appliance
must be carried out by a competent
person and be in accordance with the
current I.E.E. Regula
tions and local
regulations which apply The Ravenheat
boiler is supplied for con
nection
to a 230 V ~ 50 Hz single phase
supply
The supply must be fused at 3 A.
NOTE The method of connection
to the electricity supply MUST
facilitate complete electrical isolation
of the appliance, by the use of a fused,
double pole isolator, having a contact
separation of at least 3 mm in all poles
The point of connection to the elec tricity
supply must be readily accessible and
adjacent to the appliance except,
where the appliance is installed
in a bathroom, this MUST be sited
outside the bathroom
SECTION 5
INSTALLATION
5.1
WARNING
5.1.1
It is MOST IMPORTANT that this
appliance is installed in a VERTICAL
POSITION, with the fl ue air duct
passing through the wall
Make sure
fl ue slopes 2.5° down towards
the boiler that is 45 mm/m fall per
metre of fl ue length.
15
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Страница 33: ...Supplied By www heating spares co Tel 0161 620 6677 34 Fig 60 Fig 61 Fig 62 Fig 63...
Страница 36: ...Supplied By www heating spares co Tel 0161 620 6677 Section 9 ELECTRICAL SYSTEM DIAGRAM Fig 94 37...
Страница 42: ...Supplied By www heating spares co Tel 0161 620 6677 section 10 EXPLODED PARTS DIAGRAM 43...