DEE 2402 - Water heaters and boilers DIMPLEX - Free user manual and instructions

Product Type	Electric Water Heater / Boiler
Model	DEE 2402
Brand	Dimplex
Power Supply	240 V ~ 50 Hz
Heating Power	2.4 kW
Tank Capacity	30 liters
Dimensions (H x W x D)	650 x 400 x 400 mm
Weight	15 kg
Thermostat Range	35°C to 75°C
Energy Efficiency Class	C
Protection Rating	IP24
Installation Type	Wall-mounted vertical
Material	Enameled steel tank
Safety Features	Overheat protection, pressure relief valve, anti-freeze function
Maintenance	Annual descaling; check anode rod every 2 years
Spare Parts Availability	Thermostat, heating element, anode rod, pressure valve
Repairability Index	7.2 / 10

Frequently Asked Questions - DEE 2402 DIMPLEX

How do I adjust the water temperature on the Dimplex DEE 2402?

Turn the thermostat dial located on the front panel. The range is from 35°C to 75°C. Recommended setting is 60°C to prevent bacterial growth.

What is the maximum operating pressure?

The maximum working pressure is 8 bar (0.8 MPa). A pressure relief valve is included to ensure safe operation.

Can I install the DEE 2402 outdoors?

The unit has an IP24 rating, which protects against water splashes. It can be installed in a sheltered outdoor area but avoid direct rain or frost.

How often should I descale the water heater?

Descaling is recommended once a year depending on water hardness. Use a descaling solution suitable for enamel tanks.

What does the red reset button do?

The reset button on the thermostat trips if the unit overheats. After the cause is resolved, press it to restart operation.

How to replace the anode rod?

Turn off power and water supply. Drain the tank, unscrew the old anode rod at the top of the tank, and install a new one. Check every 2 years.

What does the error code E1 mean?

E1 indicates a sensor fault. Contact a qualified technician. Check wiring and sensor connection.

Is the Dimplex DEE 2402 energy efficient?

It has an energy efficiency class C. For better efficiency, lower the set temperature and insulate hot water pipes.

Can I use the water heater while the tank is filling?

No, always ensure the tank is fully filled before turning on the power. Operating dry can damage the heating element.

Where can I find spare parts?

Spare parts are available through Dimplex authorized dealers or online. Common parts: thermostat, heating element, anode rod, pressure valve.

USER MANUAL DEE 2402 DIMPLEX

Installation instructions

Manuel de montage

Gebruiksaanwijzing

Instantaneous water heater

Chauffe-eau instantané

Doorstroom heetwaterapparaat

Assemble the instantaneous water heater as shown in the illustrations. Observe the information in the text.

Safety information

The instantaneous water heater must only be connected and started up by an authorised technician.
The statutory regulations of the respective country, as well as those of the local electricity and water suppliers must be adhered to.
The instantaneous water heater is an appliance of protection class I and must be connected to the protective earth conductor.
The unit have to be connected durably to the mains electricity supply via an all pole disconnecting device with contact gap must be at least 3 mm.
The instantaneous water heater is suitable for enclosed (pressurised) operation only.
The tap fittings must be permitted for operation with enclosed (pressurised) instantaneous water heaters.
- The instantaneous water heater must only be connected to a cold-water pipe.
The instantaneous water heater is suitable for connection to DVGW-tested plastic pipes.
The instantaneous water heater must only be installed in a frost-free room.
Prior to installation, the electric connecting cable must be disconnected from the mains voltage and the water supply cut off!
■ Only connect the electric supply after the water supply.
When making holes in the rear panel, only make the number of holes required for installation. If the appliance is reinstalled, any holes that are not used must be made watertight.
■ Live components must not be touched subsequent to installation.

Assembly

Unpacking/removing the housing cover

• Unpack the appliance and check for transportation damage.
  ■ Dispose of the packaging and, where applicable, the old appliance, in an environmentally conscious manner.

Preparation for assembly

Wall-mounted assembly

The instantaneous water heater must be fitted securely to the wall. If required, secure the appliance using the lower adjusting screws.
The distance from the wall is variable. This allows you to compensate for any unevenness in the wall surface.
The sleeve in the rear panel must fit tightly round the connection cable. If the sleeve is damaged during installation, the holes must be sealed water-tight.

Water supply

The flow-through heater must be vented. Open the warm water tap completely and allow to flow through for one minute.

Electric supply

The mains connection can either be mounted above or below. At least 40 mm of the connecting cord's insulating jacket must be clamped inside the appliance.

Startup

For low water line pressure, remove the flow limiter (see Supplementary Information A).
Instruct the user with regard to the operation of the instantaneous water heater.
Separate the required language version from the rest of the operating instructions. This can be kept in the swing-out control panel of the instantaneous water heater.

Additional information

If the flow-through heater does not achieve adequate flow as a result of water line pressure that is too low in your house installation, remove the flow limiter.

Priority circuit for the combination with electro-storage heating units:

For operation with the priority circuit, a special load reducing relay (special accessory) is required. Other already existing load reducing relays with the exception of electronic load reducing relays could cause malfunctions.

Status Indicator in the Heater

LED Heater Status
Off Off
On Ready
Slow blinking (1/s) Heating

Specifications

Rated power	[kW] 18 21 24
Rated voltage		380 – 415 V 380 – 415 V 380 – 415 V
Warm Water Quantity at Rated Power for temperature increases of:
12 °C to 38 °C [l/min] 9.9 11.6 13.2
12 °C to 60 °C [l/min] 5.4 6.3 7.2
Switch-on quantity	[l/min]	2.6 2.6 2.6
Switch-on flow pressure* [MPa (bar)] 0.025 (0.25) 0.025 (0.25) 0.025 (0.25)
Flow pressure (at rated power and 60 °C)*
With flow limiter [MPa (bar)] 0.028 (0.28) 0.035 (0.35) 0.048 (0.48)
Without flow limiter [MPa (bar)] 0.013 (0.13) 0.020 (0.20) 0.026 (0.26)
Operative range in waters of specific electric resistance at 15 °C	[Ωcm]	≥ 1300	≥ 1300	≥ 1300
Rated pressure	[MPa (bar)]	1 (10)	1 (10)	1 (10)
Maximum permissible supply temperature	[°C]	20	20	20
Maximum mains impedance at connection site	[Ω]	-	-	≤ 0.41

* Plus any pressure loss at the tap mixer

Special accessories

DLE 02RBS Pipe set: When using the instantaneous water heater as a built-under appliance.
■ Priority switch (load reducing relay): For operation with the priority circuit.
DLE 02AP Mounting set: For surface-mount installation.

L

Exterior view of a modern stainless steel air purifier unit (no visible text or symbols)

Diagram of mechanical components inside a cylindrical housing, showing bolts, nuts, and fasteners (no text or labels)

Illustration of a hand pressing down on a mechanical component with a tool, labeled '1.' (no text or symbols beyond label)

Technical diagram of an electronic device showing internal components and wiring (no text or symbols)

Illustration of a hand holding a black rectangular object with a loop, being cut by a tool (no text or symbols present)

1 Minute entlüften!

Vent for one minute!

This appliance is labelled in accordance with European Directive 2002/96/EG concerning used electrical and electronic appliances (waste electrical and electronic equipment – WEEE). The guideline determines the framework for the return and recycling of used appliances as applicable throughout the EU.

fr Elimination