10
4 - GENERAL BOILER INFORMATION
iQE
G-system ...... Standard external high level/
vertical flue starter kit (room sealed) -
components available:
External high level/vertical flue starter kit
short (room sealed)
Extensions 150 mm, 250 mm, 450 mm, 950
mm, adjustable 195 to 270 mm and 45° elbow
High level terminal
Vertical terminal
iQE
W-system ...... High level and vertical concentric
balanced flue kit - components available:
Extensions 225 mm, 450 mm, 950 mm,
adjustable 275 to 450 mm and 45° elbow
Vertical concentric balanced flue kit
Extensions 225 mm, 450 mm, 950 mm,
adjustable 275 to 450 mm and 45° elbow
iQE
R-system (15/26 only) ..... A flexible
vertical balanced flue system designed to be
fitted inside an existing masonry chimney.
Flue extensions and 45° elbows from the
iQE W- system may be used to extend the
flue system between the boiler and the
flexible section of the system.
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 male
adaptor supplied with the boiler.
If required, an additional flexible fuel line
(600
mm) and BSP male adaptor (1/4" x 3/8")are
available to purchase from iQE.
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.
4.2
Boiler components
The iQE Horizon Internal 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. System models are
supplied with the necessary components factory
fitted. See Section 4.13.
All models are supplied with the control panel and
burner factory fitted.
The boilers can be connected to either a conventional
flue system or a balanced flue system, as required.
For Conventional flue applications where a
chimney is to be lined - iQE recommends the use
of the O-system, specifically designed for the
Internal range of iQE Horizon oil boilers. Refer to
Section 4.7 for further details.
Where a rigid conventional flue - either internal or
external - is required, iQE recommends the use of
the G and O flue system components. As no flue
adaptor is supplied with the boiler it will be
necessary to purchase the iQE Horizon adaptor
kit in order to correctly connect the G and O
system flue components to the boiler.
Flue adaptor kit - Ref. iQE CF15/35 - is used for all
iQE models from 15 to 35 kW as they all can use the
100 mm G and O system components to
construct a flue of maximum vertical height 8
metres.
Important: The flue system materials and
construction MUST be suitable for use with oil-
fired condensing boilers. Failure to fit a suitable
conventional flue may invalidate the warranty on
the boiler.
Fitting instructions for the Low level concentric, High
level and Vertical balanced flue kits are supplied
with the kits. Where a balanced flue system is
required, the following flue kits are available
from iQE,
Refer to Section 4.8 for further details.
iQE
Y-system ..... Standard low level concentric
balanced flue - components available:
Low level concentric balanced flue short
Extensions 225 mm, 450 mm and 675 mm
90° extension elbow
45° extension elbow
45° elbow
iQE Horizon Internal Oil Boiler
4.1
Boiler description
