Dimplex R7 Installation Instructions Manual

ELECTRICAIRE

WARM AIR HEATING SYSTEM

Models: R7 - 7kW / 46kWh, R8 - 8kW / 57kWh, R10 - 10kW / 69kWh,

R12 - 12kW / 80kWh, R15 - 15kW / 103kWh

INSTALLATION INSTRUCTIONS

IMPORTANT

PLEASE READ THIS LEAFLET CAREFULLY AND RETAIN FOR

FURTHER USE. NOTE ALSO THE INFORMATION GIVEN ON THE HEATER

IMPORTANT - IN EVERY CASE THE UNIT MUST BE FITTED ON

TOP OF A PLENUM CHAMBER FOR CORRECT OPERATION

• The installation must be carried out by trained personnel.

• A means for disconnection must be incorporated in the fi xed wiring in accordance with the wiring rules.

• The heater must not be installed immediately below a socket outlet.

• The heater is not suitable for connectin 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 BS 3456 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 LIKELY TO BE LEFT UNSUPERVISED

IN THE VICINITY OF THE HEATER WE RECOMMEND THAT A GUARD IS FITTED. 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 or 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 EXTREMELY HEAVY. THE FLOOR MUST BE CHECKED TO ENSURE THAT IT IS CAPABLE

OF BEARING THE WEIGHT OF THE UNIT, UP TO 750KG (¾ TON). 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.

• The 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.

• The heater must stand at least 50mm clear of any walls and 150mm below ceilings.

INSTALLATION INSTRUCTIONS

PREPARATION

The heater will arrive separately from its storage

bricks, the following bricks will be required.

R 7 / 8 / 10 - 40 bricks

R12 - 48 bricks

R15 - 64 bricks

Electrical Supply

Two supplies are required for the operation of this heater -

for ‘on-peak’ and ‘off-peak’ supply. Both supplies should be

connected through isolator switches. A time clock / thermostat

control circuit may be required.

WARNING - This appliance

must be earthed

Only heat resisting cable (min. rating T85) should be used.

POSITIONING

Important - In every case the unit must be fi tted on top of a

plenum chamber for correct operation.

The unit can be installed free standing or in a suitable cupboard.
For minimum clearances all around the heater refer to Fig. E. The
fl oor must be checked to ensure that it is capable of bearing the
weight of the unit, see warning on front cover. Also the fl oor should
be fl at and level. A concrete plinth measuring 700x700mm can be
constructed. The plenum should be insulated from the fl oor or plinth
by at least 13mm of non-compressible insulation material.

VENTILATION & DUCTING

INSTALLATION

Cupboard Ventilation - When the heater is installed in a cupboard,

two return grilles should be provided in the cupboard door or wall.
The top of the high level grille should be approximately 50mm
below the top of the cupboard and the bottom of the low level grille
approximately 25mm above the plenum top.

Return air grilles should be a minimum of 400mmx250mm. Grilles
must be positioned to return air from the heated areas.

Ducting will be required if the heater is positioned in a cupboard
and also in free standing installations if adjacent rooms are also to
be heated.

Holes to the required dimensions (to suit airducts used) should be
cut in the sides of the plenum chamber prior to siting. Holes should
not be cut closer than 30mm to either sides, top or bottom of the
plenum - see Fig F. The chamber can then be placed in position.
The ductwork can now be fi rmly attached to the plenum internally,
be means of ‘bent over’ fl anges or externally by pop rivets. Ensure
that all joints are sealed by 50mm wide tape.

1. Lift the heater onto the plenum and work it gently backwards
to its correct location, see Fig. H. Position the heater exactly over
the plenum with sides and rear fl ush to ensure stability. If fi tted in
a cupboard please ensure that the heater is facing the cupboard
door to allow for ease of access.

2. CONNECTION OF THE MAINS CABLE

Cable entry to the unit is at the bottom right hand corner when viewed
from the front. See Fig. I. Conductors are to be fed through bushings
and the clamping bar before being terminated in the terminal blocks
on the lower wiring panel. Several blanking plugs are provided for
any cable entry bushings that are not used.

Important - All mains supplies have to be installed with

independent isolators.

WARNING - This appliance must be earthed

INSPECTION BEFORE INSTALLATION

Having removed the heater from its packing inspect it for possible
damage caused in transit. Note - two sheets of mica insulation will
be found underneath the heater. Retain these in a safe place, see
Section 6. An inspection of the core bricks should also be made
at this stage.

Remove the fi lter panel by pulling the top end away from the heater,
and lift out of location hooks - see Fig G.

Remove the grille mesh by fi rst unscrewing the fi xing screws, then
spring out one end - the grille should now lift clear.

Check that all wiring connections are secure and that the fan rotates
freely.

Fig. I

Bushing

Clamping Bar

Earth

Terminal Block

Main element supplies can be provided from either single phase or
3 phase supplies.

If 3 phase is chosen, the switching circuit must use the red
phase.

An auxiliary or pilot circuit is also required, see Point 3. Control of
the fan operation by a time clock or thermostat is also an option.
Use wiring diagrams for more detail - Figs. A, B and C.

Important

Clarify if the day energy provided by the main heating element is
required. See Point 4.

Carry out the following instructions with care.