MH 12 NO - Heating DIMPLEX - Free user manual and instructions

Brand	Dimplex
Model	MH 12 NO
Product type	Natural stone wall heater
Dimensions (W x H x D)	1000 x 600 x 70 mm
Weight	51 kg
Rated voltage	230 V ~ 50 Hz
Protection rating	IP66 (protection against water jets)
Nominal thermal power	1.15 kW
Standby consumption	0.0 W
Temperature control	External room thermostat (Dimplex DTB-2R recommended) with weekly program and adaptive regulation
Installation	Horizontal or vertical wall mounting, respect minimum distances, do not install under a wall socket
Safety	Integrated overload limiter, automatic shutdown in case of overheating, hot surface (caution burns)
Cleaning	Disconnect and allow to cool, clean with a soft damp cloth, no abrasive products
Warranty	5 years according to manufacturer's conditions
Heating body material	Natural stone (microcracks possible, natural phenomenon)
Electrical connection	Fixed connection to wall socket, cable routed downwards, dedicated circuit recommended, protective insulation (no protective conductor required)
First commissioning	Heat for 15 min, cool for 60 min, repeat 2 to 3 times to remove residual moisture
Country of origin	Not specified (manufacturer Dimplex, Germany)

Frequently Asked Questions - MH 12 NO DIMPLEX

How to install the Dimplex MH 12 NO heater?

The heater must be mounted on the wall, horizontally or vertically, using the wall mounting brackets provided. Respect the minimum distances: 500 mm from the front face. Do not install it under a wall socket and route the power cable downwards.

Which room thermostat to use with the MH 12 NO?

The manufacturer recommends an external room thermostat with weekly program, adaptive start regulation and energy-saving functions. The Dimplex DTB-2R is a compatible model.

What to do if the heater does not heat?

Check the room thermostat setting and the circuit fuse. If the overload limiter has tripped (overheating), eliminate the cause (obstruction) and allow the device to cool down before restarting.

How to clean the natural stone heater?

Disconnect the device and allow it to cool. Clean the exterior with a soft damp cloth (water only). Do not use abrasive or chemical products that could damage the surface.

Can the heater be installed in a bathroom?

Yes, the protection rating IP66 makes it protected against water jets. However, it must not be installed within reach of a person in the bathtub or shower (VDE protection zone).

What is the warranty of the Dimplex MH 12 NO?

Dimplex offers a 5-year warranty on this product, in accordance with its general conditions. Color variations and natural microcracks in the stone are not covered.

Can I use an extension cord?

It is recommended to plug the heater into a dedicated circuit and not to use an extension cord. The connection must be fixed to a wall socket.

Why does my heater develop microcracks?

Microcracks are a natural phenomenon due to thermal expansion of the natural stone. They do not affect the power or safety of the device.

How to proceed with first commissioning?

Heat the heater at full power for 15 minutes, then turn it off and let it cool for 60 minutes. Repeat this operation 2 to 3 times to remove residual moisture.

Is the heater safe for children?

Children under 3 years should be kept away. Children aged 3 to 8 can turn on/off under supervision, but not clean. The surface can become very hot: risk of burns. Never cover the device.

USER MANUAL MH 12 NO DIMPLEX

Two wooden panels with visible grain patterns, one plain and one with fine texture (no text or symbols)

DCDimplex

Montage- und Gebrauchsanweisung	DeutschEng
Installation and Operating Instructions	Françaisitalano
Instructions de montage et d’utilisation
Istruzioni d’uso e di montaggio
Instrukcja montażu i użytkowania	Polski

Natursteinheizung

Natural stone heating

Chauffage en pierres naturelles

1. Notes for the user

NOTE

Dear customer,

Keep these instructions in a safe place and pass them on to possible future owners.

ATTENTION!

This device can be used by children aged 8 and over and by persons with limited physical, sensory or mental aptitude or lack of experience and/or knowledge, providing they are supervised or have been instructed in the safe use of the device and understand the associated potential dangers. Children must not play with the device. Cleaning and user maintenance may not be carried out by children without supervision!

ATTENTION!

Children younger than 3 years of age must be kept away unless they are supervised constantly. Children between the ages of 3 and 8 may switch the device on and off if they are supervised or have been instructed in the safe use of the device and have understood the resulting dangers, providing that the device is positioned or installed in its normal place of use!

ATTENTION!

Children between the ages of 3 and 8 may not switch on the device, clean the device or carry out maintenance!

ATTENTION!

The heating device carries the symbol shown on the right, which indicates that the heating device must under no circumstances be covered with any objects.

ATTENTION!

Some parts of the device can get very hot and cause burns. Particular caution must be taken with children or vulnerable people!

ATTENTION!

Install the device in such a manner that it cannot be touched by a person in the bathtub or under the shower.

ATTENTION!

If the power cable is damaged, it must be replaced by the manufacturer or after-sales service representative or a person with comparable qualifications for switching off danger sources!

2. Assembly, minimum clearance

ATTENTION!

Do not install the device directly below a wall socket.

ATTENTION!

Ceiling installation is not permitted!

ATTENTION!

The original wall brackets provided must be used.

NOTE

Mount the natural stone heating system so that the device connection cable is routed downwards.

Installation on wooden walls is permissible.

The devices can be mounted horizontally or vertically on the wall.

They must be mounted so that flammable objects can not be ignited.

The minimum clearances must be observed. In addition, a clearance of 500 mm is to be maintained in front of the unit.

The heating device must be aligned horizontally and installed on a vertical wall (see illustration). Even out any unevennesses correctly. All dimensions in mm.

When installing the heating device with mains power socket and room thermostat, the protection zone in accordance with VDE 100-701 must be observed.

Wall mounting

During vertical installation, the wall brackets must be turned 90° so that the insertion slots point downwards.

Take care when tightening the wall bracket afterwards. Risk of breaking!

• Drill the mounting holes for the wall bracket and insert the dowels.
  ■ Turn the fixing screws by a few rotations.
• Hook the heating device into the fixing screws.
  ■ Tighten the bottom fixing slightly screw.
• Tighten the top two fixing screws. This provides protection against the device unhooking unintentionally.

i NOTE

Ensure that the heating device is hanging on the wall without tension.

Model Dimension A Dimension B Dimension C
MH 4 380 mm 180 mm 180 mm
MH 7 780 mm 180 mm 180 mm
MH 9 780 mm 280 mm 230mm
MH 12 780 mm 380 mm 280 mm
MH 15 1030 mm 380 mm 280 mm
MH 17 1130 mm 380 mm 280 mm

Drilling dimensions, power cable: View of the front

3. Electrical connection

The voltage specified on the type plate must match the line voltage.

It is recommended that a separate electric circuit be provided for the power supply.

The heating device is designed for fixed connection to a wall socket. The device connection must be routed downwards. The device has protective insulation, meaning that no protective conductor is required.

The device must only be installed and repaired by a qualified electrician in accordance with the applicable safety regulations.

Connection may only take place on securely routed cables!

A disconnecting device with a contact opening of at least 3 mm at each pole (e.g. circuit breaker) must be provided in the permanently installed wiring.

4. Commissioning

Before the device is used in heating operation, the initial commissioning outlined below must be carried out to evaporate any remaining residual moisture in the casting compound:

■ Heat up the heating device for 15 minutes.
- Allow the heating device to cool down for 60 minutes (switch off the room thermostat or set it to minimum setting).

Repeat this process 2-3 times.

5. Heating operation

NOTE

Only use the device for room heating within enclosed rooms.

The heating device may only be

operated in conjunction with an external room thermostat with the following functions:

■ electronically controlled week programme,
■ adaptive control of the heating start,
■ further energy-saving functions.

Please observe the operating instructions for the room thermostat.

Recommended room thermostat: Dimplex DTB-2R

6. Faults

If the heating device is not emitting any heat, check the temperature setting on the room thermostat, then check whether the fuse in the electricity distribution is switched on.

For your safety, the heating device is equipped with an overload protector integrated in the natural stone heating system. If the natural stone heating system is heated impermissibly (e.g. due to the heating device being hung or positioned incorrectly), the device switches off automatically.

Before recommissioning the heating device, remove the reasons for the overload protector being triggered.

Once the device has cooled down sufficiently, the overload protector closes again automatically and the device can be operated again.

If you cannot correct the fault, please contact a specialist electrical service centre or else the service centre for Dimplex devices. Please have the E-number printed on the type plate ready.

7. Cleaning

The device must be switched off and must have cooled down before cleaning. Set the room thermostat to OFF. Clean the outside of the unit using a soft, damp cloth and dry it off.

Water is adequate for cleaning. Do not use any scouring powder or other chemicals, as they could damage the surface.

8. Warranty

This product is supplied with a five-year warranty according to our terms of guarantee.

With a natural stone heating system, the drawing, colour and machining never match completely. Deviations from the brochures and samples are therefore not a justified reason for complaints or returns. It is completely natural that hairline cracks may form due to heating.

These do not have a negative impact on the heat output or the safety of the heating device.

9. Note on disposal

Do not dispose of the unit with general household waste. The device must be taken to a local waste disposal plant.

10. Technical data

Unit type MH 4 MH 7 MH 9 MH 12 MH 15 MH 17
Nominal voltage 1/N, 230 V ~
Degree of protection IP66, water-jet proof
Dimensions (W x H x D) 600 x 400 x			70 mm	1000 x 400 x 70 mm	1000 x 500 x 70 mm	1000 x 600 x 70 mm	1250 x 600 x 70 mm	1350 x 600 x 70 mm
Weight 22 kg 35 kg 40 kg			51 kg 62 kg 70 kg
Heat output
Nominal heat output	P_nom		0.35 kW	0.65 kW	0.85 kW	1.15 kW	1.45 kW	1.65 kW
Minimum heat output ( guide value)	P_min		0.35 kW	0.65 kW	0.85 kW	1.15 kW	1.45 kW	1.65 kW
Maximum continuous heat output	P_max, C		0.35 kW	0.65 kW	0.85 kW	1.15 kW	1.45 kW	1.65 kW
Self consumption
With nominal heat output	el_max		0.0 W	0.0 W	0.0 W	0.0 W	0.0 W	0.0 W
With minimum heat output	el_min		0.0 W	0.0 W	0.0 W	0.0 W	0.0 W	0.0 W
In standby state	el_SB		0.0 W	0.0 W	0.0 W	0.0 W	0.0 W	0.0 W
Regulator for heat output
External electronic room temperature controllers with week programme and adaptive control of the heating start, as well as other energy saving functions where applicable.