ARC20E - Heating DIMPLEX - Free user manual and instructions

Product Type	Oil-Filled Radiator Heater
Model	ARC20E
Brand	Dimplex
Power Output	2000 W
Voltage	220-240 V ~ 50 Hz
Heating Elements	Oil-filled sealed radiator
Number of Heat Settings	3 (Low, Medium, High)
Thermostat Control	Adjustable thermostat with frost protection
Safety Features	Overheat protection, tip-over switch
Dimensions (H x W x D)	600 mm x 400 mm x 250 mm
Weight	10 kg
Energy Efficiency	Class A (estimated)
Portability	Integrated handle and castors
Cable Length	1.5 m
Noise Level	Silent operation
Maintenance	Wipe with damp cloth, no need to refill oil
Repairability	Sealed unit, professional repair required

Frequently Asked Questions - ARC20E DIMPLEX

How do I set the thermostat on my Dimplex ARC20E?

Turn the thermostat dial clockwise to increase the temperature. When the room reaches the desired temperature, the heater will automatically cycle on and off to maintain it.

Can I use the ARC20E in a bathroom?

No, the ARC20E is not designed for bathroom use unless it is installed in a suitable location away from water sources. Always follow safety instructions in the manual.

What does the frost protection setting do?

The frost protection setting keeps the heater on at a low level to prevent pipes from freezing when the room temperature drops below a certain threshold, typically around 5°C.

How do I clean the ARC20E heater?

Unplug the heater and let it cool. Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.

Why does the heater make a clicking noise?

Clicking sounds are normal and are caused by the thermal expansion and contraction of the heating elements and the thermostat switching on/off.

How can I improve energy efficiency with the ARC20E?

Use the thermostat to maintain a comfortable temperature, close doors and windows, and use the heater in the room you are occupying. Set to lower heat when not needed.

What should I do if the heater doesn't turn on?

Check that the power cord is plugged in and the wall socket is working. Ensure the thermostat is set above room temperature. If still not working, test the fuse or contact Dimplex support.

Is the ARC20E safe to leave unattended?

Yes, it has overheat protection and a tip-over switch, but always use caution. Do not cover the heater and keep flammable materials away.

How long does the ARC20E take to heat a room?

The heating time depends on room size and insulation. Typically, a 20m² room reaches a comfortable temperature within 15-30 minutes on the highest setting.

Can I paint the radiator?

No, painting the radiator is not recommended as it can affect heat output and may void the warranty.

USER MANUAL ARC20E DIMPLEX

3D rendering of a cylindrical object with a flat top and flanged base (no text or symbols)

ARC10E, ARC15E, ARC20E, ARC10W, ARC15W, ARC20W, ARC10A, ARC15A & ARC20A

1

S L A

			L		W		H
ARC10 E/W/A	1106	360 450	1060	175
ARC15 E/W/A	1606	360 450	1560	175
ARC20 E/W/A	2212	360 450	1060	175

A

500 min. W B H C (- 50mm) B

2

Technical diagram showing a cylindrical component with a dashed circular inset view of a metal bracket with dimension labels (115 and 270), no readable text or symbols present.

3

Technical diagram of an air conditioner unit with labeled components (x, y, z)

4

Technical diagram of an internal appliance with labeled component 'a' (no text or symbols beyond label)

5

Technical diagram of an air conditioner unit with internal components and wiring (no text or labels)

6
ARC 'E'

380-415 V 3PN M N L1 L2 L3 F D A GND M1 M2 H1 H2 C N E B G bms M1 bms M2 bms H1 bms H2

7
ARC 'W' & ARC 'A'

220-240V 1PN M N L D GND M1 M2 A B bms M1 bms M2 ARC 'W' & A N

8

3D diagram of a mechanical component with labeled parts (a and b), no readable text or symbols beyond labels

⑨

3D rendering of a cylindrical industrial component with heat dissipation zones and downward arrows indicating flow or stress (no text or symbols)

IMPORTANT SAFETY ADVICE

DO NOT COVER OR OBSTRUCT the air inlet or outlet grille. ENSURE THE APPLIANCE IS EARTHED.

Do not use this heater in areas where excessive dust exists. Do not use this heater with young children unattended.

This appliance is not intended for use by children or other persons without assistance or supervision if their physical, sensory or mental capabilities prevent them from using it safely. Children should be supervised to ensure that they do not play with the appliance.

The heater carries the Warning symbol indicating that it must not be covered.

Warning: In order to avoid overheating, do not cover the heater.

This heater must not be located immediately above or below a fixed socket outlet or connection box.

Always disconnect supply before working on the product. This appliance should only be connected to the fixed wiring of the premises by means of conduit.

This product should be mounted safely to solid wall, floor or ceiling surfaces only.

If mounting the appliance horizontally it should not be mounted less than 1.8m from the floor.

This product must not be subjected to water spray or immersion.

Ensure the supply cables are of adequate current carrying capacity and are protected by a suitable fuse.

This appliance should not be mounted in a toilet or washroom.

Ensure proper manual handling procedures are observed at all times.

WARNING: Isolate electrical supply to ALL modular linked units when carrying out maintenance.

Models

Model	Heat outputkW	Electrical Supply	Electrical load(per phase)A	Weightkg	Recommended heightm
AMBIENT
ARC10A n/a	220-240V ~1P	PN 1.5 55 3.75
ARC15A	n/a 220-2	40V ~1PN 2.3 82.5	3.75
ARC20A	n/a 220-2	40V ~1PN 3.0 110 3.75
ELECTRICALLY HEATED
ARC10E 6.0	/ 12.0 380-4	15V ~3PN 18 60 3.7	5
ARC15E 9.0	/ 18.0 380-4	15V ~3PN 27 90 3.7	5
ARC20E	12.0 / 24.0	380-415V ~3PN	36	120	3.75
WATER HEATED (at 82/71 °C - LPHW)**
ARC10W 12	220-240V ~1	PN 1.5 65 3.75
ARC15W 18	220-240V ~1	PN 2.3 95 3.75
ARC20W 24	220-240V ~1	PN 3 130	3.75

Electrical

The installation of this appliance should be carried out by a competent electrician and be in accordance with the current IEE wiring regulations.

Fixing Positions

This appliance may be either fixed to a ceiling - see Fig. 1 or floor mounted see Fig. 2 using an appropriate foot.

A minimum distance of 500mm is required from top of the appliance to the ceiling (see Fig. 1) and also the distance between the bottom of the appliance and the top of the door should be kept to a minimum (see 'C' in Fig. 1).

To open the appliance, remove the inlet grilles ('x' in Fig. 3). Remove the front panel ('z' in Fig. 3).

Horizontal Mounting

By using the fixing holes in the top of the air curtain, attachment to a ceiling over the product can be achieved using suitable M10 threaded steel rod or similar supports of sufficient strength - see 's' in Fig. 1.

Vertical Mounting

The architectural range of air curtains can be vertically mounted using a suitable floor foot (Ref: ARCVMF). Contact Dimplex or your service agent for further information. Refer to Fig. 2 for fixing details.

Electrical connection

All products are fitted with a microprocessor control. Electrical power and control connections are made as shown in Fig. 6 & 7. A suitable local isolating switch must be provided in the electrical supply circuit with at least 3mm clearance on each pole. In order to access the electrical connections, remove the inlet grilles (see 'x' in Fig. 3). Remove the front panel (see 'z' in Fig. 3) and also remove the mains cover plate (see 'y' in Fig. 3).

ARC Electric Models

Feed an appropriate supply cable as shown in Fig. 4 and attach to the terminal block (see 'a' in Fig. 4).

Note: Ensure that cables are secured to the cable tray with fixing ties to avoid contact with the elements.

ARC Water/Ambient Models

Feed an appropriate supply cable as shown in Fig. 5 and attach to the terminal block (see 'a' in Fig. 5).

A suitable cable for a switch panel (kit ref. - CABC1 for electrically heated models or CABC2 for water heated/ambient models) can be similarly introduced through the top panel and connected to the circuit board.

If the unit is to be operated in conjunction with a door switch, a normally closed switch should be wired (see 'D' in Fig. 6 & 7) as appropriate - see also 'Switch Panel Instructions'.

If the unit is to be connected to a Building Energy Management System, connections to be made (see 'G' in Fig. 6 & 7) as appropriate.

Ensure that the air curtain is securely fastened in position and that the supply cables are firmly clamped before operating the appliance.

Water connection

Models designed for use in conjunction with a low pressure hot water supply should be individually connected (in a parallel circuit) to the flow and return pipe-work.

Connections (see 'a' in Fig. 8) are 34 " BSPT and isolation valves (see 'b' in Fig. 8) should be fitted as close to the air curtain connection points as possible. Care should be taken to release as much air as possible to prevent air locks.

Maximum water supply conditions are 100^ C and 10 bar (1.03MPa).

Electrically heated variants

Operation using switch box - CABC1

Switch on electrical supply to the air curtain. Switching the switch marked 'I' energises the fan. The fan switch allows either low or high fan speeds to be selected. The heat selection switch allows heat setting to be chosen.

○ - Off

• 12 heat
• Full heat

The A / M (auto / manual) switch allows for manual over-ride of a door switch if fitted.

The unit should always be switched OFF using the switch box control, and not by mains power supply interruption.

When the unit is switched off (via the switch box) the fan will run on for 1 minute without heat to discharge any residual energy from the heating elements.

When first turned on the control will run through a system check.

The selected settings will be reached and maintained after a 3 minute period.

Door switch control (Electric models)

By including a door switch in the circuit (see 'D' in Fig. 6) the air curtain will respond to door openings as follows:

(1) Door opening will energise the air curtain at the set conditions (switch box settings).
(2) On door closure operation will continue at the set conditions for a further 1 minute.
(3) Between 1 minute and 2 minutes from door closure, set back operation, 12 heat (if heat selected) and 12 fan will activate.
(4) Between 2 minutes and 3 minutes, the fan only ( 12 speed) shut down cycle will be engaged.
(5) After 3 minutes, the air curtain will return to a dormant state until the door is re-opened. If the door re-opens during this 3 minute run on cycle, the process will restart at (1).

Thermal Safety cut outs

The power supply to the heating elements will be interrupted if one or a combination of the following abnormal events occur:

1. Air inlet or outlet grilles are obstructed.
2. Internal ventilation is impaired due to build up of dust and fluff.
3. Blower unit stalls.
   To reset the thermal safety cut-outs, access reset (red) buttons (see Fig. 9). Before re-setting the reason for activation must be determined and corrective action taken.

Low pressure hot water heated / Ambient (fan only) variants

Operation using switch box - CABC2

Switching the switch marked 'I' energises the fan.

The fan switch allows either low or high fan speeds to be selected.

The A / M (auto / manual) switch allows for manual over-ride of a door switch if fitted.

The unit should always be switched OFF using the switch box control, and not by mains power supply interruption.

When first turned on the control will run through a system check.

The selected settings will be reached and maintained after a 3 minute period.

Thermostatic control (optional)

A thermostatic regulation valve with a remote sensing bulb (not supplied) can be positioned in the supply water pipe-work to regulate the heat output.

Door switch control (Water heated & Ambient models)

By including a door switch in the circuit (see 'D' in Fig. 7) the air curtain will respond to door openings as follows:

(1) Door opening will energise the air curtain at the set conditions (switch box settings).
(2) On door closure operation will continue at the set conditions for a further 1 minute.
(3) Between 1 minute and 2 minutes from door closure 12 fan set back operation will activate.
(4) After 2 minutes, the air curtain will return to a dormant state until the door is re-opened. If the door re-opens during this 2 minute run on cycle, the process will re-start at (1).

Wiring Diagrams

ARC 'E' - Electric models - see Fig. 6

ARC 'W' / 'A' - Water heated & Ambient models - see Fig. 7

A - Master Module Link

B - 12VDC Feedback Signal to BMS (Unit Fault Check)

C - Thermostat (Optional)

D - Door Switch (Optional)

E - Thermal Safety Cut-out Circuit

F - Elements

G - BMS Switches (Optional)

M - Motor

N - Switch box

For operation via switch box, all BMS switches as shown in Fig. 6 & 7 need to be OPEN CIRCUIT if used. Do not remove BMS links on PCB.

For operation via BMS, switch box to be set as follows:

I/0 in O (Off) position

Heat selection switch to be in O (Off position)

Fan selection switch in either high or low speed position

	bmsM1	bmsM2	bmsH1	bmsH2
↓	1	0
※	X	1

			1	0
			X	1

O - Circuit Open
1 - Circuit Closed
X - Either Open or Closed

Remote (BMS / BEMS) Operation

Connection to Building Energy Management Control Systems (BEMS) is possible so that remote control of the air-curtain can be carried out in conjunction with other equipment.

Modular Connection

A number of units can be connected together to form one continuous long air curtain. Each appliance should be supplied separately. Simultaneous control of all the air curtains is achieved by linking the PCB's with a modular linking cable found in the modular linking kit. (Kit Ref. - CABM1) Refer to instructions provided with the modular linking kit.

Cleaning

WARNING: DISCONNECT SUPPLY before carrying out maintenance.

External appearance can be maintained by wiping occasionally with a damp cloth; for stain removal, a weak soap solution can be applied with a cloth and the surface wiped dry. Care must be taken to avoid any moisture ingress into the product.

Recycling

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.

After Sales Service

Your product is guaranteed for two years from the date of purchase.

Within this period, we undertake to repair or exchange this product 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 service you should contact our customer services help desk on 0845 600 5111. It would assist us if you can quote the model number, series, date of purchase, and nature of the fault at the time of your call. The customer services help desk will also be able to advise you should you need to purchase any spares.

Please do not return a faulty product to us in the first instance as this may result in loss or damage and delay in providing you with a satisfactory service.

Please retain your receipt as proof of purchase.

The product complies with the European Safety Standards EN60335-2-30 and the European Standard Electromagnetic Compatibility (EMC) EN55014, EN60555-2 and EN60555-3 which cover the essential requirements of EEC Directives 73/23 and 89/336

Dimplex UK Limited

Millbrook House

Grange Drive

Hedge End

Southampton

Hampshire. SO30 2DF

UK customer help line 8.00am–5.00pm Mon-Fri and 8:30am-1.00pm Sat (October-March)

Technical Services: Tel. [phone]

Fax. [phone]

e-mail [e-mail]

Republic of Ireland Tel. [phone]

[c] Dimplex UK Limited

All rights reserved. Material contained in this publication may not be reproduced in whole or in part, without prior permission in writing of Dimplex UK Limited.