10
Grant Vortex External Module
Grant Vortex External Modules have an insulated
weatherproof enclosure made of galvanised steel, and
are designed for external installation, either against a
wall or free standing some distance away from the
property, as required. For flue clearances see page 15.
The Vortex External modules are part of the Grant range
of automatic pressure jet oil boilers have been designed
for use with a fully pumped central heating system with
indirect domestic hot water cylinder. They are not suitable
for use with either a direct cylinder or a 'primatic' cylinder
or gravity hot water..
The boilers are suitable for use on open vented or
sealed central heating systems.
All models are supplied with the control panel and
burner factory fitted.
The factory fitted low level discharge flue system can
be adjusted on site for either rear, left hand or right
hand flue outlet position, as required.
An external Plume Diverter kit (Fig. 16) is also available
from your local stockist. Refer to Section 6.4 for further
details.
All burners are pre-set for use with kerosene and are
supplied ready to connect to a single pipe fuel supply
system with a loose flexible fuel line and
3
/
8
" to
1
/
4
" BSP
male adaptor supplied with the boiler.
If required, an additional flexible fuel line (600 mm) and
3
/
8
" to
1
/
4
" BSP male adaptor are available to purchase
from your local stockist, for two-pipe oil supply systems.
The temperature of the water leaving the boiler to heat
the radiators and hot water cylinder is User adjustable.
The boiler is fitted with an overheat thermostat (which
allows it to be used on a sealed central heating system)
which will automatically switch off the boiler if the heat
exchanger exceeds a pre-set temperature of 111°C ± 3°C.
The control panel is fitted with an ON/OFF switch,
boiler thermostat control knob and the manual reset
button for the overheat thermostat
Boiler description
4.1
Boiler components
4.2
4 - GENERAL BOILER INFORMATION
Installation of a Grant Vortex boiler must be in
accordance with the following recommendations:-
a Local Building Regulations, and Building
Standards issued by the Department of the
Environment and any local Byelaws etc.
b Model and local Water Undertaking Byelaws.
c Applicable Control of Pollution Regulations.
d The following OFTEC requirements:-
OFST 100 Polythene oil storage tanks for
distillate fuels.
OFST 200 Fuel oil storage tanks and tank
bunds for use with distillate fuels,
lubrication oils and waste oils.
Further information may be obtained from the
OFTEC Technical Information Book 3
(Installation requirements for oil fired boilers
and oil storage tanks).
The installation should also be in accordance with the
latest edition of the following British Standard Codes
of Practice:-
BS 715 Metal flue pipes, fittings, terminals
and accessories.
BS 799:5 Oil storage tanks.
BS 1181 Clay flue linings and flue terminals.
BS 4543:3 Factory made insulated chimneys for
oil fired appliances.
BS 4876 Performance requirements for oil
burning appliances.
BS 5410:1 Code of Practice for oil firing appliances.
BS 5449 Forced circulation hot water systems.
BS 7593 Code of Practice for treatment of
water in heating systems.
BS 7671 Requirements for electrical
installations, IEE Wiring Regulations.
Failure to install and commission appliances
correctly may invalidate the boiler warranty.
IMPORTANT
Before starting any work on the boiler, or fuel supply
please read the health and safety information given in
Section 14 on page 43.
Regulations to comply with
4.3
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