Creda Duo300i User manual

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Dimplex DuoHeat Radiator
Models: Duo300i, Duo400i and Duo500i
Installation Instructions
85702 Issue 8
Dimensions (including clearances diagram)
(millimetres)
Models Specification
300i 1.3kW / 0.28kW
400i 1.95kW / 0.34kW
500i 2.6kW / 0.39kW
THESE INSTRUCTIONS SHOULD BE READ CAREFULLY AND RETAINED FOR FUTURE REFERENCE
NOTE ALSO THE INFORMATION GIVEN ON THE APPLIANCE
These instructions should not be left with the user, as this would invite the dismantling and servicing by unqualified persons.
There is a separate instruction leaflet which should be left with the user explaining how the radiator should be operated.
IMPORTANT SAFETY ADVICE
WARNING - This radiator is VERY HEAVY. In order to maintain stability and to ensure its future safety in use, it is essential
that the radiator is FIXED SOUNDLY TO A WALL and that the feet are mounted on a FIRM, LEVEL SURFACE. Care should
be taken to avoid irregular surfaces, such as may result from tiled surrounds partially protruding under the radiator. It is
important that the following instructions are strictly followed.
WARNING – It is important that the fixing device chosen is appropriate to the wall material to which the radiator is being
fixed. Some modern internal building materials are very low density block and require specialised fixing devices to
provide a safe, secure installation.
WARNING – If during any reassembly of the radiator, a part of the thermal insulation shows damage or deterioration which
may impair safety, it should be replaced with an identical part.
WARNING – This radiator must not be located below a fixed socket outlet.
Suggested Wall Fittings (see page 7 for further information)
Solid brick/block: No. 10 Rawlplug fibre inserts (provided). 5.5mm drill bit. Drill 8mm deeper than rawlplug length.
Plasterboard: If possible locate studding and use No. 10 woodscrews directly into the wood, otherwise M5 intersets.
For other wall types seek specialist advice.
DO NOT COVER OR OBSTRUCT the surfaces of the appliance.
DO NOT POSITION under windows where curtains may contact the radiator (see minimum clearances above).
DO NOT PLACE OBJECTS in contact with the radiator.
Model Height
AWidth BDepth C
Duo300i 712mm 600mm 130mm+10mm
Duo400i 712mm 830mm 130mm+10mm
Duo500i 712mm 1060mm 130mm+10mm
Wall, Curtains or Furniture
Curtains Shelf or Overhang
Furniture
or other
obstruction
110mm
150mm
min.
250mm
min.
75mm
min.
75mm
min. A
BC
TO ENSURE THIS APPLIANCE IS OPERATING CORRECTLY, IT IS ESSENTIAL TO PERFORM THE CHECK PROCEDURE DETAILED
ON THE BACK PAGE OF THIS INSTRUCTION. THIS MUST BE COMPLETED BEFORE NORMAL OPERATION COMMENCES.

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Energy Retention Cells
Energy retention cells are supplied separately to the radiator in packs of two.
The reference number is 85743.
Duo300i
8 Cells (4 Packs)
Duo400i
12 Cells (6 Packs)
Duo500i
16 Cells (8 Packs)
Electrical Connection
WARNING – THIS APPLIANCE MUST BE EARTHED
The installation of this appliance should be carried out by a competent electrician in accordance with I.E.E. Regulations for Electrical
Equipment.
The radiator is fitted with two flexible cables for connection to the fixed wiring of the premises through suitable connection boxes
positioned adjacent to the radiator.
Each supply circuit to the radiator must incorporate a double pole isolating switch having a contact separation of at least 3mm.
This radiator is not suitable for connection to a 30A ring circuit.
IMPORTANT
The wires in the mains leads are coloured in accordance with the following code:
GREEN & YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
BLACK (direct acting supply only):CONTROL WIRE

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Circuit Diagram

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INSTALLATION OF THE RADIATOR
Turn the carton upside down and open the carton from
the bottom. Remove the feet from the polystyrene
corner supports and the accessories bag from the
polystyrene centre support.
1
2
Fit the feet to the radiator by engaging the flanges on
the top of the foot with the slots in the base of the
radiator 1 . Push the foot towards the back of the radiator
until it is fully engaged 2 .
2
ASSEMBLY
4
The radiator is packed with the direct acting mains
cable clipped to the underside of the radiator ensuring
it is secure during transit. The off peak mains cable will be
secured with cable ties. Prior to installing the radiator, unclip
the direct acting mains cable (do not remove or discard
these clips).
NOTE: If the off peak mains connection is required to
be made on the right hand side of the radiator, the pre-
wired cable must be passed behind the feet and secured
using the clips on the base of the radiator. For ease of
access this should be done while the radiator is still
upside down in the carton. Similarly when the direct
acting mains cable is ready to be connected (See Section
23), if the connection is required to be made on the left
hand side of the radiator the cable must be routed behind
the feet. DO NOT clip the direct acting mains cable at
this stage (See Section 23). The cable clips are already
fitted at the factory to allow both mains cables to be
attached, if required.
1
1
2
3
IMPORTANT
BOTH FEET MUST BE SECURELY
ATTACHED TO THE BOTTOM OF THE
RADIATOR BEFORE IT IS REMOVED
FROM THE CARTON, AVOIDING
DAMAGE TO THE THERMISTOR CLIP
SHOWN IN FIG. 2.
Thermistor
Clip

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6
Stand the radiator on its feet and against a wall.
Remove the securing screws along the bottom edge
of the front panel.
7
Swing bottom of panel slightly away from the rest of
the radiator (Fig. 7A) and lift upwards to unhook the
top edge (Fig. 7B).
6
7A7B
5
Stand the radiator on its feet and remove packaging
by sliding over the top of the radiator. Remove all
additional internal protective packaging.
5
8
Ensure the electronic components are not damaged
when removing the panel. Carefully place the panel
to one side. Check that the mains supply cables are not
damaged.
If they are to be replaced only heat resistant cable must be
used (min T85). Refer to sections 4, 21 and 22 for fitting
the off peak and radiant element cables.
9
Position radiator against wall in intended final position,
ensuring it is on a firm base and taking note of the
minimum fixing dimensions (see front page).
If the floor is carpeted it is important that the feet are
positioned firmly and securely. The feet may rest on
top of the carpet, however carpet gripper should be re-
moved around the feet so that the radiator rests in a level
position.
10
7D
Carefully disconnect the
radiant element connector
from the front panel (Fig. 7c).
(See label on bottom of
heater and graphic 7Dbelow).
7C

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The following must be applied before fixing the radiator
to the wall:
NO SKIRTING BOARD / SKIRTING BOARD NO
TALLER THAN 100MM
11AThe radiator is to be mounted as shown in Fig. 11A,
with the wall spacer bracket in its standard orientation.
11BMark the position of the two mounting slots with the
radiator pushed tight against the wall Fig. 11B.
11A
11B
11C
WALL MOUNTING
Use the 10mm spacers provided (4 x 10mm) between
the rear of the radiator and the wall. DO NOT use the
30mm spacers where there are no skirting boards or
they are no taller than 100mm.
11DPlace one 10mm spacer to the inside and another
10mm spacer to the outside of the location hole on
the back panel Fig. 11D(see Fig 11Afor wall spacer
bracket orientation).
11E/FCarefully guide the radiator towards the drilled hole
and screw part way to the wall Fig. 11E& 11F.
11D11E
11F11G
NOTE: UNDER NO CIRCUMSTANCES SHOULD THESE
SCREWS BE REMOVED WITHOUT FIRST REMOVING
ALL ENERGY RETENTION CELLS FROM THE RADIATOR
11CDrill holes into the wall toward the bottom of the
marked slots, as shown in Fig. 11C, following closely
the guidelines opposite.
11GOnce both sides have been successfully positioned
screw the radiator flush to the wall Fig. 11G.
Do not fully tighten these screws until the core has been
loaded into the radiator as some settling of the radiator
may occur.
IMPORTANT: UNDER NO CIRCUMSTANCES
SHOULD THESE SCREWS BE REMOVED WITHOUT
FIRST REMOVING ALL ENERGY RETENTION
CELLS FROM THE RADIATOR
DO NOT USE 30MM SPACER ON INSIDE OF
RADIATOR. USE ONLY EXTERNALLY - SEE FIG. 12.
11

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12BPlace the 30mm spacer to the outside of the radiator
and the 10mm to the inside Fig. 12B. Drill the holes
as detailed in Section 11. Carefully guide the radiator
towards the drilled hole. When in position screw part
way to the wall to secure the radiator as in Section
11, remembering not to fully tighten the screws.
12B
SKIRTING BOARD TALLER THAN 100MM
Use the 10mm and 30mm spacers provided (2 x
10mm and 2 x 30mm)
12A
12
12AIf the skirting board is taller than 100mm, the radiator
is to be mounted as shown in fig 12A. Remove the
wall mounting bracket and reassemble in the
alternative orientation to give a greater spacing
distance from the wall.
IMPORTANT: UNDER NO
CIRCUMSTANCES SHOULD
THESE SCREWS BE
REMOVED WITHOUT FIRST
REMOVING ALL ENERGY
RETENTION CELLS FROM
THE RADIATOR
Solid brick/High density block walls
These must be drilled and plugged with the Rawlplug No. 10
size fibre inserts provided. The correct size of drill (5.5mm)
should be used and the hole should be drilled to a depth of
8mm greater than the length of the Rawlplug so that the
fixing is made below the plaster layer.
Low density block walls
A special fixing, such as Unifix LB70 should be employed,
following closely the manufacturers instructions.
Panelled internal walls
If possible, locate the studding and use No. 10 size
woodscrews. Where it is not possible to locate the studding
use type M5 Rawlplug INTERSETS on securely fastened
plasterboard panelling. For other wall materials the wall
panel manufacturer should be consulted for details of suitable
wall fixing devices.

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13
Remove the inner front panel by removing the screws
along its top edge Fig. 13A. Carefully lift the bottom
of the front inner panel out of the retaining flange at the
base of the radiator, Fig 13Band remove the internal
packaging, Fig. 13Ctaking care not to damage the insulation
attached.
13A
14
Lift out the elements from the base insulation and
rotate forwards.
DO NOT DISCONNECT THE TERMINALS
14
13B13c

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15
Carefully fit the bottom row of the back layer of energy
retention cells, placing the two end cells in position
first with the flat side toward the back. Fit the top row of
cells also with the recess toward the element.
16
Refit the elements by carefully feeding the tails down
through the hole in the base insulation, ensuring the
tab is pointing forward. Fit the front layer of cells with the
flat side toward the front of the radiator. Ensure that the tab
on the element is captured below the bottom row of cells
and that the element is vertical.
16A16C
17
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 both sides.
18
Check that the screws securing the radiator to the
wall have been fully tightened. It is essential that all
screws are replaced to ensure earth continuity.
Once installed DO NOT attempt to
reposition the radiator without first
unloading the energy retention cells
and obtaining the services of a
competent electrician.
17
16B
15A15B

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19
In its factory default setting, the radiant element will
be allowed to operate for up to 2 hours after the
beginning of the off peak charge period to maintain a
comfortable room temperature if required. After 2 hours the
radiant element will be automatically disabled until the end
of the off peak charge period.
In circumstances where it will not be necessary to maintain
a high ambient room temperature between the hours of
typically 12am and 2am (for example a commercial
application) this feature can be disabled by removing the
time delay pin on the power enable board (see Fig. 19B),
which will automatically switch the radiant element off at the
beginning of the off peak charge period.
19A
19B
RADIANT ELEMENT OVERRIDE
REASSEMBLY
20
Reconnect the radiant
element connector as
shown in Fig 20A. Replace the
outer front panel by hooking
onto the two location clips on
the top panel Fig. 20B, 20C&
20D. Swing the bottom of the
front panel gently towards the
radiator Fig. 20Eand carefully
make sure any excess cable
is fed through into the base of
the radiator Fig. 20F. When
securing the front panel with
the screws provided, ensure
the right hand corner is
secured first to avoid trapping
the cable.
20C
20D
If the direct acting mains supply connection is to be made
on the left hand side of the radiator the pre-wired cable
must be passed behind the feet and secured using the clips on
the base of the radiator. Two sets of clips are already attached
to the base of the radiator to allow the mains cables to travel
parallel to each other, if required. See also Section 4 and Fig. 4.
Cut the mains cables to length. Ensuring the
electricity supply is disconnected, connect the free
end of the mains cable to a suitable double pole switch
adjacent to the radiator – reinstate the electricity supply.
Note – the double pole switch must have a contact
separation of at least 3mm in all poles.
ON NO ACCOUNT SHOULD ANY SURPLUS CABLE BE PUSHED INSIDE OR BEHIND THE RADIATOR.
CHECK ALL ELECTRICAL CONNECTIONS FOR TIGHTNESS.
21 22
20E
20A
20F
20B

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IMPORTANT
The wires in the direct acting supply cable are coloured in
accordance with the following code:
GREEN & YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
BLACK: CONTROL WIRE
The BLACK control wire is designed to carry a signal from a
compatible remote programming device. If, however, a
remote programmer is not being used, the appliance may
be connected to the fixed wiring of the premises simply by
cutting back the BLACK control wire, ensuring that it
terminates within the outer insulating sheath of the supply
cable.
Do NOT connect the BLACK (PILOT) SIGNAL WIRE to
earth. When the programmer drives other radiators, connect
the pilot wires together in series. Any 240V insulated cable
may be used to link pilot wires around the ring main. A low
signal current is used. Suitable connections would be either
an additional single core wire marked or colour coded
appropriately or use a 4 core cable throughout the radiator
ring. As a mains conductor, the pilot wire should be isolated
in accordance with the IEE regulations.
For further details of connection to Dimplex programming
devices, please refer to the relevant Dimplex programmer
instructions.
ELECTRICAL CONNECTION
REPLACING MAINS WIRE ON DIRECT ACTING SUPPLY CIRCUIT
HEAT RESISTING CABLE MUST BEUSED (MIN. T85)
Follow the procedure to remove the outer front.
Remove the PCB Bracket from the bottom of the outer front.
Remove the wire from the connector block and earth screw.
Using a pair of pliers remove the cable grip from the bracket.
The replacement cable will be either 3 core or 4 core.
4 core is only required if a pilot wire is used to control the
radiator from an outside source. For details of connection
to Dimplex programming devices, please refer to the relevant
Programmer Instructions.
Note: Cable outside diameter to be between 6.4 - 7.4 mm
REPLACE CABLE AS FOLLOWS:
Pass new mains cable through hole in side of PCB bracket
connect wires as detailed opposite. Replace cable clamp
ensuring any slack has been pulled back. There will not be
sufficient room for excess cable when the PCB bracket is
replaced onto the outer front.
23
Cleaning
WARNING – ALWAYS DISCONNECT FROM THE
POWER SUPPLY BEFORE CLEANING THE RADIATOR.
Do not use detergents, abrasive cleaning powder or polish
of any kind on the body of the radiator.
Allow the radiator to cool, then wipe with a dry cloth to remove
dust and a damp cloth (not wet) to clean off stains. Be careful
not to allow moisture into the radiator.
After Sales Service
Your Radiator is guaranteed for two years from the date of
purchase. We undertake to repair or exchange free of charge
within this period, any part found to be defective due to a
manufacturing fault. Your rights under this guarantee are
additional to your statutory rights, which in turn are not
affected by this guarantee. Please retain receipt as proof
of purchase.

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This appliance complies with the European Standards EN 60 335-1, EN 60 335-2-61, EN 61000-3-2,
EN 61000-3-3, EN 55014 and EN55104 for Safety & Electromagnetic Compatibility.
These standards cover the requirement of the EMC Directives 89/336 & 73/23
Glen Dimplex UK Limited
Millbrook House
Grange Drive
Hedge End
Southampton
Hampshire SO30 2DF
UK customer helpline (8.00AM - 6.00PM Mon-Fri; 8.30AM-1.00PM Sat)
Customer Help Line Tel: [phone]
Fax: [phone]
e-mail: [email protected]
Republic of Ireland Tel: [phone]
DuoHeat has two heat output modes Comfort (Radiant Heat)
and Background (Retained Heat) . Under normal operation
the temperature control display will always operate the radiant
panel, (Comfort).
Note:- Front Panel should be fully installed onto radiator
and only Peak supply is switched on, with red bar(s)
showing on the temperature control display, before
starting the check procedure.
1. (i) Adjust the “off peak” control setting (Background
heat) to position no. 10 as follows; press and hold
down the +button on the temperature control display
until 10 red bars are illuminated, continue to hold
the +button for a further 7 seconds and a single
red bar will flash. Use the +button to move the
flashing red bar to the right hand side i.e. the No. 10
position (shown below).
After 20 seconds the temperature control display
will return to the Comfort control mode.
(ii) Ensure “Off Peak” supply is in the Off position.
Unscrew the spur from the wall. Check the
continuity on the storage side of the spur.. If the
circuit is closed this will confirm that the “off peak”
storage circuit (background heat) is operational.
(iii) If the “off peak” circuit shows open circuit and room
temperature is below 25°C, switch off the “peak”
front panel electricity supply and check if the circuit
has closed. If off peak circuit is still open, check all
electrical connections are secure, only then phone
customer help line.
Reconnect spur and switch on radiator.
CHECK PROCEDURE FOR INSTALLERS FOLLOWING INSTALLATION
2. To check the radiant panel operation (comfort heat).
(i) Adjust the temperature control display as follows;
press down the +button until 10 red bars are
illuminated (shown below). After 2 minutes the
front panel should now feel warm, this will confirm
correct operation.
(ii) If the front panel does not heat up and room
temperature is below 25°C, remove front panel and
ensure there is no damage to front panel or radiant
element and that all electrical connections are
secure. If front panel is still not heating up, phone
customer help line.
NOTE: If room temperature is above 25°C, radiator will
not operate.
IMPORTANT
Once radiator has been confirmed as fully
operational, use the “Quick Start Guide” to
set up initial customer settings.
Please ensure the “Quick Start Guide” and
the “Operating Instructions” are left with the
radiator for user information.
THIS CHECK PROCEDURE SHOULD BE CARRIED OUR BY A COMPETENT INSTALLER ONLY. A QUICK START GUIDE AND
OPERATING INSTRUCTIONS ARE AVAILABLE FOR END USERS.
© Glen Dimplex UK Limited
All rights reserved. Material contained in this publication may not be reproduced in whole or part, without prior permission in writing from Glen Dimplex UK Limited.