FXL(i) FAN STORAGE HEATER RANGE
MODELS: FXL12i - 1.7kW / 12kWh STORAGE & 1.5kW BOOST
FXL18i - 2.6kW / 18kWh STORAGE & 1.5kW BOOST
FXL24i - 3.4kW / 24kWh STORAGE & 1.5kW BOOST
INSTALLATION AND OPERATING
INSTRUCTIONS
IMPORTANT
PLEASE READ THIS LEAFLET CAREFULLY AND RETAIN FOR FURTHER USE.
NOTE ALSO THE INFORMATION GIVEN ON THE HEATER
The Installation must be carried out by trained personnel.
A means for disconnection must be incorporated in the fi xed wiring by a double pole switch
with a contact separation of a minimum of 3mm and in accordance with the current IEE Wiring
Regulations.
The heater must not be installed immediately below a fi xed socket outlet.
The heater is not suitable for connection to a 30A ring circuit.
Do not position the heater under windows where curtains can contact the heater casing.
WARNING - THE SURFACES ON THIS HEATER CAN BE HOT.
This heater meets EN60335 safety requirements. However, any heater type becomes hot in normal
operation. Care must be taken to ensure that prolonged skin contact with the heater does not occur.
WHERE YOUNG CHILDREN, INFIRM PERSONS, OR THE AGED ARE PRESENT THIS APPLIANCE
MUST BE ADEQUATELY GUARDED. Contact your installer or the manufacturer for further advice.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision for
instruction concerning use of the appliance by a person responsible for their safety. Children should
be supervised to ensure that they do not play with the appliance.
This appliance is very heavy and must be securely fixed to a wall. DO NOT UNDER ANY
CIRCUMSTANCES ATTEMPT TO MOVE OR REPOSITION THIS HEATER WITHOUT SEEKING
EXPERT ADVICE.
To maintain stability, it is essential that the heater is placed on a level surface.
This heater must be installed where it is impossible for switches and other controls to be touched by
a person using a bath or shower.
IMPORTANT - Due to the newness of materials the heater will produce a slight smell for the fi rst few
days of operation. ROOMS MUST BE WELL VENTILATED AND YOUNG CHILDREN, CAGED BIRDS,
OR PERSONS WITH RESPIRATORY COMPLAINTS MUST NOT REMAIN IN CLOSE PROXIMITY
TO THE HEATER DURING THE FIRST 48 HOURS OF THE COMMISSIONING PERIOD.
IF, DURING ANY REASSEMBLY OF THE HEATER, A PART OF THE THERMAL INSULATION SHOWS
DAMAGE OR DETERIORATION WHICH MAY IMPAIR SAFETY, IT SHOULD BE REPLACED BY AN
IDENTICAL PART.
88472
INSTALLATION INSTRUCTIONS
PREPARATION
The heater will arrive separately
from its storage bricks, the following
bricks will be required.
FXL12i - 8 bricks
FXL18i - 12 bricks
FXL24i - 16 bricks
Two supplies are required for the
operation of this heater - a restricted Off
Peak or Economy 7 supply for the storage
circuit, and an unrestricted supply for the
fan boost element circuit.
Thermostatic fan / boost control is
provided on the heater, however the fan
/ boost operation may be customised by
the introduction of an external timer to
the heater (see section 3).
WARNING - This appliance
must be earthed
Only heat resisting cable (min. rating T85)
should be used. The wires in the mains
cable will be coloured as follows:-
GREEN & YELLOW - EARTH
BLUE - NEUTRAL
BROWN - LIVE
SUGGESTED FIXINGS
SOLID BRICK/BLOCK - No. 10 Size plastic
inserts, 8mm drill bit. Drill hole 15mm
deeper than plastic insert length.
PLASTERBOARD - If possible locate
studding and use No. 10 woodscrews
directly into the wood, otherwise M5 rawlplug
intersets are suitable.
NOTE: FOR OTHER WALL TYPES - (e.g.
timberframe and hollow concrete) SEEK
SPECIALIST ADVICE.
INSTALLATION
1. ENSURE THAT FIXING KIT HAS BEEN
LOCATED BEFORE DISPOSING OF
PACKAGING.
Remove the front panel by removing the
three screws along its bottom edge. With
hands positioned on each side of the panel,
lift upwards to unhook the top edge whilst
pressing down on the top panel with your
thumbs. The panel can now be lifted clear
and set to one side.
Remove the packing pieces from the slots
on the inner front (2 on the FXL12i, 3 on the
FXL18i and 4 on the FXL24i).
2. Remove the inner front panel by
unscrewing the screws along its top and
sides. As the front insulation is attached
care must be taken when lifting this panel
from the heater and placing it to one side.
Remove the three inner guards by removing
the screws along their bottom edges and
sliding the guards up and off the base tray.
Please note the location of each guard.
3. CONNECTION OF THE MAINS CABLE
- Connect the restricted (E7) supply to the
terminal block, marked “Storage Circuit”,
having first passed the cable through a
front cable clamp in the base. Connect the
unrestricted (Peak) supply to the terminal
block, marked “Fan/Boost Circuit”, having
passed this cable through another cable
clamp in the base.
At this point, if desired, an external fan/
boost timer may be fi tted to the heater by
passing the two wires from the timer through
the remaining cable clamp, and connecting
them across the terminal block, marked
“Timer”, having already removed the link
fi tted across this block at the factory.
IMPORTANT: When using an external
fan/boost timer, the fan inhibitor must
be disabled (see Section 4).
Connect the EARTH lead from both supplies
to the terminal marked with the symbol
IMPORTANT DURING NORMAL OPERATION ENSURE
BOTH SUPPLIES ARE SWITCHED ON AT THE WALL.
STORAGE CIRCUIT
FAN/BOOST
CIRCUIT
24i
18i
12i
5. FAN SPEED SELECTION - At this point
the installer must choose between Normal/
High Fan or permanent High Fan option.
Option 1 - The heater is factory set at
Normal Fan. The fan will therefore:-
(a) Run at NORMAL when the boost option
is not selected.
(b) Run at NORMAL when the boost
is selected and the core is partially
depleted.
(c) Automatically switch to HIGH when the
boost is selected and the core is almost
fully depleted.
Option 2 - If a High Fan is permanently
required the installer must make the following
adjustment.
(a) Loosen the two screws securing the wires
to the resistor block.
(b) Move the right wire to the left of the
block and tighten both wires in the left
connection point of the resistor block
effectively taking the resistor out of circuit.
See Fan/Boost Circuit Diagram
6. Ensure that any slack is pulled back
through each clamp and tighten the clamping
screws. Secure cables to base of heater
using ties provided in fi xing kit.
7. Place the heater on its feet, and in the
desired position against the wall - DO NOT
LIFT THE HEATER BY ITS TOP PANEL!
Ensure that the heater is based on a fi rm
level surface, at least 100mm from any end
wall, and at least 100mm below any shelf or
similar projection. Cut away the gripper rod
or carpet which would prevent the heater
sitting fi rmly on the fl oor.
8. Mark the position of the two outside
corners of the wall bracket with the heater
pushed tight against the wall. Remove the
wall bracket from the heater by removing the
screw at each end. Place the heater to one
side and reposition the bracket against the
wall using the corner marks for alignment.
9. THE FOLLOWING MUST BE APPLIED
WHEN FIXING THE HEATER TO THE
WALL BRACKET.
i) If no skirting board is present secure
the heater through the wall bracket slots
closest to the wall.
ii) If 100mm (4 in.) skirting is present secure
the heater through the outer slots.
iii) If skirting taller that 150mm (6in.) is
present this must be reduced to 150mm
(6 in.) over the entire width of the heater
plus 25mm (1 in.) at each end.
Do not fully tighten these screws until the
bricks are loaded into the heater as some
settling of the heater may occur.
NOTE: NEVER REMOVE THESE SCREWS
WITHOUT FIRST UNLOADING THE
HEATER.
10. Remove one element to allow access
for the back rows of bricks. On the FXL24i
remove the element to the right of centre,
on the FXL18i remove the central element,
and on the FXL12i the left hand element
should be removed.
Loosen the two screws securing the element
tails in the ceramic connector block, and lift
the element up and out of the heater.
11. Carefully fi t the bottom row of the back
layer of bricks placing the two end bricks
into position fi rst. Ensure that the recess
in the bricks is toward the rear of the
heater with the narrow end to the bottom.
Repeat this with the top row of the back
layer of bricks but the narrow end of the
recess must be to the top.
Refi t the element which had been removed
by feeding the tails down through the hole
in the base insulation and into the connector
block. Ensure the element is fully pushed
home, then securely tighten the two screws
in the block.
12. Fit the front layer of bricks with the
recess toward the front of the heater.
The complete core will comprise:
FXL12i : 2 x 4 brick columns
FXL18i : 3 x 4 brick columns
FXL24i : 4 x 4 brick columns
13. Replace the inner front, complete with
insulation, by locating its bottom edge behind
the front lip of the chassis and inserting the
retaining screws along the top and sides.
Refi t the three inner guards (two on the
FXL12i) in their respective locations.
Replace the outer front by hooking the upper
grille into its retaining slot on the top panel,
lower into position and replace the three self
tapping screws along the bottom edge.
14. Finally, tighten the screws at each end
of the wall bracket. Ensure that all screws
have been tightened as this is essential to
maintain earth continuity.
FXL12i
FXL18/24i
4. The heater is fi tted with a fan inhibitor
relay. This relay will inhibit the operation of
the fan during the off peak periods. If the fan
operation is required (eg. if using external
fan/boost timer) during the off peak period
then the relay switch should be switched to
the relay off position.
Factory set
(relay ON position)
Relay OFF position
Four fi xing positions must be chosen for the
FXL24i, three for the FXL18i and two for the
FXL12i. Mark the positions for the fi xing
holes - two at the extreme ends and others
spaced evenly between them. Remove the
bracket from the wall, drill the holes in the
positions marked, and insert suitable fi xings
previously described. Secure the wall bracket
to the wall using the correct fasteners.
OPERATING INSTRUCTIONS
Heat Retention
This storage heater takes in energy when electricity
tariffs are low, and retains it in the insulated core.
Automatic Input Control
An automatic input control system varies the charge
taken in response to weather conditions, taking into
account the amount of energy already stored in the
heater. It therefore provides an economic heating
system requiring no adjustment by the user.
Core Discharge
A thermostatically controlled fan draws air through
the hot core, releasing the stored heat as and when
required, providing a level of room temperature
control superior to that of conventional storage
heaters.
Boost Heating
A supplementary direct acting element provides
additional boost heating when required. Although
this may function outside reduced tariff periods, the
boost will only operate when the more economical
‘stored energy’ is exhausted.
Setting the Controls
The controls are located at the top right hand
corner of the heater, both under the hinged fl ap,
and on the side panel.
Safety Instructions
1. Ventilate rooms well during commissioning.
2. Do not move the heater in any way once
installed without the services of a competent
electrician.
3. Do not cover the heater with clothing etc.
at any time, or position furniture close to, or
against, the heater.
4. Ensure clearances of at least 150mm between
the heater and curtains.
ALSO REFER TO COVER PAGE
Due to the newness of materials, the heater will
produce a slight smell for the fi rst few days of
operation. In order to dispel these odours as
quickly as possible:
(i) During the day set the input room temperature
control to MAXIMUM and the boost switch to OFF,
allowing the fan to run as often as possible.
(ii) During the night, ensure that the boost switch
is set to OFF, and reduce the room temperature
control setting to MINIMUM to enable the core to
accept its full charge.
Ensure both supplies are switched on at the
wall.
Normal Use (after the fi rst 48 hours)
i) Keep both supplies switched on at the wall.
ii) When only background heat is required (eg.
when the room is unoccupied) set the temperature
control to minimum.
iii) When more heat is required in the room (eg. when
the room is occupied) turn the temperature control
to 5 or 6 to set the required room temperature.
iv) At night time, set the temperature control back
to MINIMUM, to allow the heater to accept its full
charge.
Principles of Operation
Control Functions
Output Controls
ROOM TEMPERATURE CONTROL
The room temperature control will allow the fan to
run until the desired room temperature has been
achieved. Once this has been reached the fan
will automatically cycle ON and OFF to maintain
this temperature. If the room feels too warm the
room temperature control should be adjusted
anticlockwise; conversely if the room feels too
cool it should be adjusted clockwise.
To maintain the appearance of the heater, wipe
occasionally with a dry cloth when the heater is cool.
Do not use abrasive powders or furniture polish.
Discolouration of wall fi nishes can sometimes occur
immediately above a storage heater due to the
properties of some paints and decorating materials
or the presence of environmental impurities in the
air (such as soot or incense generated from the
burning of candles, etc). A suitable shelf (available
from Dimplex) may be fi tted to limit the extent of
any wall discolouration.
88472 Issue 4
BOOST OPTION
Boost selection is controlled by a two position
illuminated rocker switch.
The boost option is only available when the fan
is in operation.
When the Boost is switched ON, the direct acting
element will be automatically activated (in 2
stages) to supplement the heat output from a
depleting core.
The switch will be illuminated whenever the fan is
running, although safety devices within the heater
will prevent the fi rst stage of the direct acting
element (half boost) being activated until the core
is partially depleted.
When the core is almost fully depleted, the direct
acting element will automatically switch to full
power (full boost).
Dependent on the option the installer has chosen
(see installation instructions point 4) the fan and
boost will operate as follows:
Option 1 (two stage fan recommended for
domestic installations)
If boost option is not selected Normal Fan will
operate.
If boost option is selected, the fan will
Commissioning
(fi rst 48 hours of use)
Input Controls
This heater is fitted with a user adjustable
automatic input control which varies the charge
taken in response to weather conditions taking
into account the amount of energy already stored
in the heater.
Set at 6 the heater takes a maximum charge and at
1 the heater takes a minimum charge at any room
temperature. The casing of the heater, particularly in
late evening, may feel cool, this is quite normal. The
input control may require a few days experimentation
before your comfort level is established.
Initially set the control to 3, the following evening
if the room is too warm reduce to 2 or if it is too
cool increase to 4. On subsequent evenings
adjust by half divisions until your comfort level
is achieved.
Having established the setting the input will
automatically vary the amount of heat stored to
compensate for weather conditions.
AFTER SALES SERVICE
automatically operate at Normal speed when
half boost conditions apply.
If boost option is selected, the fan will
automatically operate at High speed when full
boost conditions apply.
Option 2 (single stage fan - recommended for
commercial installations)
If boost option is not selected High fan will
operate.
If the boost option is selected, the fan will
automatically operate at High speed when half
boost conditions apply.
If the boost option is selected, the fan will
automatically operate at High speed when full
boost conditions apply.
IMPORTANT
It is recommended that the boost function
be switched OFF when the heater is not in
use, especially overnight when the heater is
charging.
During very warm weather, the fan alone may be
used to circulate cool air.
For electrical products sold within the
European Community. At the end of the
electrical products useful life it should not
be disposed of with household waste.
Please recycle where facilities exist. Check with
your Local Authority or retailer for recycling advice
in your country.
RECYCLING
Your product is guaranteed for two years
from date of purchase. Within this period, we
undertake to repair or exchange free of charge
provided it has been installed and operated
in accordance with these instructions. Your
rights under this guarantee are additional
to your statutory rights, which in turn are
not affected by this guarantee. Should you
require after sales information please go to
www.dimplex.co.uk where you will fi nd our self
help guide by clicking on ‘After Sales’ or ring our
help desk on 0845 600 5111 (UK) or 0184 2 4833
(ROI). Spare parts are also available on the
website www.dimplex.co.uk.
Please do not initially return faulty appliance,
or part of an appliance, to us as this may result
in transit damage and/or a delay in providing
service.
Let us know your diffi culty quoting the model
number and serial number (located along the
wall bracket). We will then take the appropriate
action. Please retain your receipt as proof of
purchase.
CLEANING
This product complies with the European Safety Standards EN60335-2-30 and the European Standard Electromagnetic Compatibility (EMC) EN55014, EN60555-2 and EN60555-3.
These cover the essential requirements of EEC Directives 2006/95/EC and 2004/108/EC
© GDC Group Ltd. All rights reserved.
Material contained in this publication may not be reproduced in whole or in part, without prior permission in writing.
A division of the GDC Group Ltd, Millbrook House, Grange Drive, Hedge End, Southampton SO30 2DF
Dimplex UK Limited,
Millbrook House,
Grange Drive,
Hedge End,
Southampton, SO30 2DF.
Tel: 0845 600 5111
Fax: 01489 773 050
Web-site www.dimplex.co.uk
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