Dimplex EPX Series - User Manual

Installation and Operating Instructions
INDPUKELRG Issue 0
EPX Electronic Panel Convector Heaters
Dimensions
(millimetres)
Model(s) Watt A B
EPX 500 0.5kW 450 108
EPX 625 0.625kW 688 108
EPX 750 0.75kW 620 108
EPX 1000 1.0kW 620 108
EPX 1250 1.25kW 688 108
EPX 1500 1.5kW 688 108
EPX 2000 2.0kW 860 108
Important Safety Advice
When using electrical appliances, basic precautions
should always be followed to reduce the risk of fire,
electrical shock, and injury to persons, including the
following:
IIMPORTANT – The wall brackets supplied with the
appliance must be used.
IMPORTANT – If the heater is installed in a room
containing a bath or shower, it must be so installed that
switches and other controls cannot be touched by a
person using a bath or shower.
Do not use outdoors.
Do not locate the heater immediately below a fixed socket
outlet or connection box.
Do not cover the heater. Do not place material or
garments on the heater, or obstruct the air circulation
around the heater, for instance by curtains or furniture,
as this could cause overheating and a fire risk.
NEVER cover or obstruct in any way the heat outlet slots
at the top of the heater or the air inlet slots in the base of
the heater.
The heater carries the Warning symbol indicating
that it must not be covered.
WARNING – THE SURFACES OF THIS HEATER CAN BE HOT.
Momentary contact with any part of the heater should
not cause injury. However, aged or infirm persons or
young children should not be left unsupervised in the
vicinity of the heater unless a suitable guard is fitted.
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.
Note that due care and consideration must be taken
when using this heater in series with a thermal control,
a program controller, a timer or any other device that
switches on the heat automatically, since a fire risk
exists when the heater is accidentally covered or
displaced.
If the supply cord is damaged it must be replaced by the
manufacturer or service agent or a similarly qualified
person in order to avoid a hazard.
Fig. 1
IMPORTANT: THESE INSTRUCTIONS SHOULD BE READ CAREFULLY AND RETAINED FOR FUTURE REFERENCE
Electrical
WARNING – THIS APPLIANCE MUST BE EARTHED
The electrical installation must be carried out by a competent
electrician, and be in strict accordance with the current I.E.E.
regulations for Electrical Equipment in Buildings.
The wires in this mains lead are coloured in accordance
with the following code :
GREEN AND YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
BLACK : PILOT WIRE
- see also ‘Pilot Wire Connection’.
The heater is fitted with a length of flexible cable type H05VV-
F size 4 x 1.0mm
2
for connection to the fixed wiring of the
premises through a suitable connection box positioned
adjacent to the heater.
The supply circuit to the heater must incorporate a double
pole isolating switch having a contact separation of at least
3mm.
Pilot Wire Connection
The BLACK control wire is designed to carry a signal from
slot in or wall mounted Dimplex programmers. If, however a
programmer is not being used, the pilot wire should be
isolated in accordance with the current IEE Wiring
Regulations.
IMPORTANT - DO NOT connect the BLACK pilot wire to earth.
Care should be taken with the installation of the pilot wire(s)
as when switching to background (set back) they become
energised at 240V although only at a current of less than
100mA. In every case a suitable means of isolation must be
provided for the pilot wire and marked to indicate that two
sources of supply may be present at the heater.
Where pilot wires are installed separately from the heater
final sub-circuit they should be protected, double insulated
and carry their own integral earth continuity conductor.
Supplementary Earth Bonding
Should Equipotential Earth Bonding be required the earthing
conductor in the supply cord is deemed to provide the
supplementary bonding connection (see Regulation 547-
03-05, 16
th
Edition I.E.E. Wiring Regulations).
A
150
MIN
‘x’
150
MIN
150
MIN
B
430

Summary

Important Safety Advice

Wall Bracket Usage

The wall brackets supplied with the appliance must be used for installation.

Bathroom Installation

Heater controls must not be reachable by someone using a bath or shower.

Location

Do not place heater below a fixed socket outlet or connection box.

Obstruction Warning

Do not cover the heater or obstruct airflow, as this risks overheating and fire.

Hot Surfaces

Heater surfaces can be hot; supervise children and infirm persons.

Child Supervision

This appliance is not for unsupervised use by children or those with reduced capabilities.

Damaged Cord

If the supply cord is damaged, it must be replaced by the manufacturer or qualified agent.

Electrical Installation

Earthing Requirement

This appliance must be earthed and installed by a competent electrician per I.E.E. regulations.

Pilot Wire Connection

BLACK control wire carries signals from programmers; isolate if not used; never connect to earth.

Supplementary Earth Bonding

The supply cord's earthing conductor provides supplementary bonding as per Regulation 547-03-05.

Wall Mounting

Bracket Usage

Use only the supplied wall brackets and observe minimum clearances.

Mounting Procedure

Steps to detach brackets, fix to wall, and hang the heater securely.

Operation

Switching On

Use the 'ON/OFF' button to control power; an indicator shows when the unit is powered.

Setting Temperature

Adjust the thermostat slider to control room temperature from frost protection to maximum.

Installer Notes

Test Mode

Allows installers to check heater response to pilot wire signals.

Thermostat Limiting

Installer can limit thermostat slider movement using plastic pins.

Accessory Modules

Module Installation

Procedure for installing optional control modules, including pre-installation steps.

Safety and Maintenance

Overheat Protection

Appliance has a thermal cut-out that resets automatically if overheating occurs.

Cleaning Instructions

Disconnect power before cleaning; use a soft damp cloth; avoid abrasive cleaners.

After Sales Service

Warranty and Support

Product is guaranteed for two years; contact customer services for repairs or spares.

Energy Saving Tips

Heating Efficiency

Reduce thermostat by 1°C for 10% energy saving; use heaters only where needed.

Home Efficiency

Tips include closing curtains, improving window insulation, and insulating hot water tanks.

Water Heating

Use showers, set water heater thermostat to 60°C, and fix dripping taps.

Lighting Efficiency

Turn off lights in empty rooms and use low-energy bulbs.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The Dimplex EPX Electronic Panel Convector Heater is a wall-mounted heating appliance designed for efficient and controlled room heating. It operates on electricity and is intended for indoor use, providing warmth through convection. The heater is designed to be operated in an upright position and is splashproof to IP24 standard, making it suitable for various indoor environments, including rooms with baths or showers, provided it is installed correctly to prevent contact with switches and controls by a person using the bath or shower.

Function Description

The primary function of the EPX heater is to convert electrical energy into heat to warm a room. It features an electronic thermostat that allows users to set and maintain a desired room temperature. The heater's operation is controlled by a simple "ON" button and a slider for temperature adjustment. When the room temperature reaches the set level, the heater automatically reduces power to its elements, maintaining the chosen temperature.

For enhanced control and energy efficiency, the EPX heater can be integrated into a pilot wire system. This allows it to receive signals from external programmers, such as Dimplex slot-in or wall-mounted programmers, to implement various heating modes like "ON," "OFF," "FROST protection," and "SETBACK" (background temperature). In "SETBACK" mode, the heater automatically operates at a room temperature setting approximately 5°C less than the thermostat setting, which is useful for maintaining a lower background temperature when a room is not actively in use.

The heater incorporates a thermal cut-out for safety, which automatically cuts power to the elements if the product overheats. Once the heater cools down, it will reset and resume normal operation, cycling on and off until the cause of overheating is resolved.

Usage Features

• Wall Mounting: The heater is designed for permanent wall mounting using the supplied brackets. Installation involves removing the bracket from the back of the heater, securely fixing it to the wall, and then engaging the heater with the bracket's lower and upper latches. Minimum clearances around the heater must be observed to ensure proper air circulation and prevent overheating. It is crucial not to locate the heater immediately below a fixed socket outlet or connection box.
• Temperature Control: Users can switch the heater "ON" using a dedicated button. The desired room temperature is set using an adjustable slider on the thermostat unit. The "min" setting corresponds to approximately 5°C, suitable for frost protection, while the "MAX" setting represents approximately 30°C. A glowing symbol indicates when the heating elements are actively engaged.
• Thermostat Setting Limitation: For operators who wish to restrict the range of the temperature selection slider, the installer can limit its movement. This is achieved by removing two plastic pins from the rear of the thermostat moulding and reinserting them into preferred holes to define the desired slider movement limits. This feature can be configured before wall mounting the product.
• Pilot Wire System Integration: When connected to a pilot wire system, the heater can respond to signals from remote programming devices. This enables advanced control over heating schedules and modes, such as "ON," "OFF," "FROST" protection (maintaining a minimum temperature to prevent freezing), and "SETBACK" (maintaining a reduced background temperature).
• Test Mode: An installer-specific test mode is available for pilot wire systems. By placing the thermostat slider in the "MAX" position and holding the "ON" button while switching on the mains, the unit enters a 4-minute test state. During this period, a neon indicator on the heater will display the status of the incoming pilot wire signal, allowing the installer to verify correct communication (e.g., Neon on for "ON," Neon off for "OFF," fast flashing for "FROST," and slow flashing for "SETBACK").
• Accessory Modules: The EPX range supports optional accessory modules, which can be inserted into a dedicated slot on the right-hand side of the thermostat unit. These modules enhance the heater's functionality, and specific user instructions for each module are provided separately. Before installing any module, the heater must be switched off at the mains supply. The installation process involves removing a plug-in protective cover using a flat-head screwdriver, lifting a second cover to reveal the compartment, and then inserting the module, ensuring it is positively located.

Maintenance Features

• Cleaning: Regular cleaning is recommended to maintain the heater's appearance and performance. Before cleaning, it is crucial to disconnect the heater from the power supply and allow it to cool down. The exterior can be cleaned by wiping it with a soft, damp cloth and then drying it. Abrasive cleaning powders or furniture polish should not be used as they can damage the surface finish.
• Access for Cleaning/Redecoration: For more thorough cleaning or redecoration purposes, the heater can be easily released from its wall bracket. This involves depressing the latch on both brackets (as shown in Fig. 2) and hinging the heater forward.
• Safety Precautions: The heater carries a warning symbol indicating that it must not be covered. Users are explicitly warned not to place material or garments on the heater, or obstruct the air circulation around it (e.g., with curtains or furniture), as this can lead to overheating and a fire risk. Specifically, the heat outlet slots at the top and air inlet slots at the base of the heater must never be covered or obstructed.
• Electrical Safety: The electrical installation must be carried out by a competent electrician in strict accordance with current I.E.E. regulations. The appliance must be earthed. The supply circuit to the heater must include a double-pole isolating switch with at least 3mm contact separation. If the supply cord is damaged, it must be replaced by the manufacturer, service agent, or a similarly qualified person to prevent hazards.
• Pilot Wire Isolation: If a pilot wire is not being used, it must be isolated in accordance with current IEE Wiring Regulations. It is critical not to connect the black pilot wire to earth. Care must be taken during pilot wire installation, as they can become energized at 240V (albeit at a low current) when switching to background mode. A suitable means of isolation must be provided for the pilot wire and marked to indicate the presence of two sources of supply at the heater. If pilot wires are installed separately from the heater's final sub-circuit, they must be protected, double insulated, and carry their own integral earth continuity conductor.
• Supplementary Earth Bonding: If equipotential earth bonding is required, the earthing conductor in the supply cord is considered to provide the supplementary bonding connection, as per Regulation 547-03-05 of the 16th Edition I.E.E. Wiring Regulations.
• Supervision: While momentary contact with the heater's hot surfaces should not cause injury, aged or infirm persons or young children should not be left unsupervised in the vicinity of the heater unless a suitable guard is fitted. The appliance is not intended for use by children or persons with reduced physical, sensory, or mental capabilities without assistance or supervision. Children should be supervised to ensure they do not play with the appliance.
• Automatic Operation Caution: When using the heater in series with a thermal control, program controller, timer, or any other device that switches on the heat automatically, due care and consideration must be taken. A fire risk exists if the heater is accidentally covered or displaced during automatic operation.

Dimplex EPX Series Specifications