CLAGE MBH 3..7 E-Mini Instant Water Heater Instruction Manual

CLAGE MBH 3..7 E-Mini Instant Water Heater

Important notes

Using the instructions

Please read these instructions carefully before installing or using the appliance! Keep the instructions handy with the appliance for future use!
Instruction manuals are intended for the specialist who is responsible for the installation of the appliance. Operation manuals are for the end user.
The latest version of the instructions can be found online at www.clage.com.

Safety instructions

• Do not use the appliance until it has been correctly installed and unless it is in perfect working order.
• Do not remove the front cover under any circumstances before switching off the mains electrical supply to the unit.
• Never make technical modifications, either to the appliance itself or the electrical leads and water pipes.
• The appliance must be earthed at all times.
• Pay attention to the fact that water temperatures in excess of approx. 43 °C are perceived as hot, especially by children, and may cause a feeling of burning. Please note that the fittings and taps may be very hot when the appliance has been in use for some time.
• The appliance is only suitable for domestic use and similar applications inside closed rooms, and must only be used to heat incoming water from the mains supply.
• The appliance must never be exposed to frost.
• The values stated on the rating plate must be observed.
• In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the mains water supply instantly. Repairs must only be carried out by the customer service department or an authorised professional.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Description of appliance

This instantaneous water heater is intended to provide the economical heating of water suf-ficient for a single outlet, i.e. handwash basin, and is installed together with a sanitary water fitting.
When the hot water tap is opened, the instantaneous water heater switches itself on auto-matically and heats the water as it passes through the appliance. It is only then that the appliance uses electricity. The temperature increase depends on the flow rate.

Technical specifications

16.3
Required min. cable cross-section               mm2| 1.5| 2.5| 4.0| 1.5
Hot water output at ∆t = 25 K 2)                 l/min| 2.0| 2.5| 3.3| 3.7
Switching on at                                      l/min| 1.3| 1.8| 2.2| 2.4
Switching off at                                      l/min| 1.0| 1.4| 1.7| 2.0
Approx. weight when filled with water           kg| 1.5
Protection class| IP 25
Marking / Approvals| see rating plate

• The declaration complies with the requirements of the EU regulation No 812/2013 being binding as of September 2015.
  • The specific resistance can be asked for at your water distribution company.
  • Temperature increase from e. g. 15 °C to 40 °C.

Dimensions

Scope of delivery

Installation

Installation, initial operation and maintenance of this appliance must only be con-ducted by an authorised professional, who will then be responsible for adherence to applicable standards and installation regulations. We assume no liability for any damages caused by failure to observe these instructions!

Typical installations

Vented (open) installation

Fig. 3: “Vented (open) installation with a special open-outlet tap” (dimensions in mm)

Pressure-resistant (closed) outlet installations

Fig. 4: “Pressure-resistant (closed) installation with standard tap” (dimensions in mm)

Installation instructions

The heater is installed directly to the connecting pipes of the tap. We guarantee trouble-free operation of the instantaneous water heater only if CLAGE fittings and accessories are used. Note the following during installation:

• Installation must comply with DIN VDE 0100 and DIN 1988 or EN 806-2 and with the statutory regulations of the country and the provisions of the local electricity and water supply company.
• Check the technical data and information on the rating plate.
• Easy access to the instantaneous water heater must be guaranteed at all times for maintenance purposes. An separate shut-off valve must be installed.
• Ensure that all accessories are removed from the packaging.
• When using the supplied flexible connecting hose, the minimum bending radius of 27mm must be observed at all times. The connecting hose must not be subjected to any tensile or compressive effects during assembly and when in use.

Water connection

1. Position the instantaneous water heater with the water connectors vertically upwards for direct connection to the tap.

2. Secure the wall bracket to the wall with suitable screws and dowels.

3. Place the appliance onto the wall bracket and snap it into position. Only use the appliance if it is fitted correctly to the wall bracket.
   Fig. 5: “Installing the wall bracket”

4. Rinse the water pipes thoroughly before connecting them to the appliance.

5. Connect the water connectors with the relevant tap connectors. The water inlet is indicated in blue on the rating plate (under the cover) and the water outlet in red.
   Fig. 6: “Connecting the water pipes”

6. Make sure that the water pipes do not apply any kind of mechanical pressure on the instantaneous water heater.

7. Open the hot water valve of the tap and check all connections for leaks.

Electrical connection

Fill the appliance with water by repeatedly opening and closing the hot water tap before connecting to electrical power and purge completely. The heating element may be damaged if this is not done!

1. Check that the power supply is switched off.
2. Make sure that the cross-section of the supply line corresponds to the details in the technical specifications of these instructions.
3. Ensure that the dimensions of the circuit breaker do correspond with the cross-section of the connecting pipe of the appliance and to the cross-section of the supply line.
4. Instantaneous water heater with plug:
   •  Check that the socket is connected to the protective earth conductor.
   • Plug the plug into the socket.
5. Instantaneous water heater without plug:
   • Note that according to VDE 0700, an all-pole disconnecting device with a contact opening width of ≥ 3 mm per phase must be provided at the installation end.
   • Connect the connecting pipe via a junction box to the mains, as shown in the circuit diagram.
6. Connection to a permanently installed cable:
   • Note that according to VDE 0700, an all-pole disconnecting device with a contact opening width of ≥ 3 mm per phase should be provided at the installation end.
   • The cross-section of the cable must meet the requirements of the minimal cross-section, as mentioned in chapter “Technical specifications“. The maximum applicable cross-section is 6 mm2.
   • Open the cover.
   • Dismount the pre-installed connection cable.
   • Route the permanently installed cable through the grommet and connect it as shown in the circuit diagram. Make sure that the grommet fits tightly around the cable to ensure optimal protection against water.
   • Refit the cover on the appliance. The earth conductor must be connected!Fig. 7: “Circuit diagram”

Initial start-up

Do not switch on the electric power at this time!

1. To purge the instantaneous water heater, open the hot water tap and wait until the water emerges free of air bubbles.
2. In order to obtain an optimum water jet at low flow rates, screw the enclosed special tap aerator into the tap outlet.

Fig. 8: “Fitting the special tap aerator“

3. Switch on the electric power.
4. Adapt the water flow if necessary, if for example the temperature is not reached. The procedure is described in the chapter “Use”.
5. Explain the functions and use of the instantaneous water heater to the user and hand over these operating instructions to the user for information and future reference.
6. Register the appliance with the customer service department using the registration card or online at www.clage.com.

Use

As soon as the hot water tap is opened, the instantaneous water heater switches on automatically. Close the tap and the appliance switches off automatically again.

Rating plate cover

On the inner part of the cover you can find the name of the application type (1), as well as the serial number (2) and the article number (3).

Fig. 9: “Rating plate cover”

Removing the cover
Under this cover, the rating plate and the adjusting screw for flow rate setting are located.

1. Push the cover at the corrugation towards the wall bracket.
2.  At the rear corners press the cover down until the front edge lifts.
3. Remove the cover by pulling forward.
   Fig. 10: “ Removing the cover”

Adjusting the water flow and temperature

The maximum temperature and flow depend on the conditions at the installation site.
In case of quite low or high cold water temperatures, you may reduce or increase the flow with the adjustment screw to achieve a comfortable outlet temperature. See figure below for direction of rotation:

Fig. 11: “Adjusting the water flow and temperature”

Fig. 12: “Temperature increase and hot water output”

Changing the strainer

The cold water connection of the instantaneous water heater is equipped with a strainer. Dirt deposited in this strainer can reduce the hot water output. Clean or replace as follows.

1. Switch off the power supply to the instantaneous water heater.
2. Close the shut-off valve in the inlet pipe.
3. Disconnect the water pipe from the water inlet. The water inlet is indicated in blue on the rating plate (under the cover). This can cause water leakage.
4.  Lever the strainer out of the connection piece of the instantaneous water heater and clean or replace it.
5. Insert the clean strainer into the connection piece and connect the water pipe to the water inlet of the instantaneous water heater.
6. Purge the instantaneous water heater as described in the chapter “Purging”.
7. Switch the power supply back on again.

Purging

Each time it is emptied (for example after work on the plumbing system or following repair work on the appliance), the instantaneous water heater must be purged before it is used again.

1. Switch off the power supply to the instantaneous water heater.
2. To purge the instantaneous water heater, open the hot water tap and wait until the water emerges free of air bubbles.
3. Switch the power supply back on again.

Cleaning and maintenance

• Plastic surfaces and fittings should only be wiped with a damp cloth. Do not use abrasive or chlorine-based cleaning agents or solvents.
• For a good water supply, the outlet fittings (special tap aerators and shower heads) should be unscrewed and cleaned at regular intervals. Every three years, the electrical and plumbing components should be inspected by an authorised professional in order to ensure prop-er functioning and operational safety at all times.

Troubleshooting

Self-help when problems occur

The following table will help you to determine and rectify the reasons for possible problems.

angle valve

Water flows more slowly than expected

| Special tap aerator is not fitted| Fit the special tap aerator
Water pressure too low| Check the water flow pressure
Dirt in the pipes| Remove any dirt from the filter, angle valve and tap
The appliance switches itself on and off| Water pressure fluctuates, flow rate is too low| Remove any dirt / increase the water flow pressure, close other taps, open angle valve further

Water remains cold even though the appliance switches on

| Electric supply incorrect| Check the electric supply
No voltage| Check fuses in the electrical installation
Faulty heating element| Replace heating element (by authorised technician)

Appliance does not switch on and the water remains cold

| Water connections mixed up| Check installation
Water flow pressure too low| Check water flow setting, open angle valve further, check water pressure
Dirt in the pipes| Remove dirt from the inlet and outlet pipes
Hot water temperature varies| Water pressure fluctuates| Stabilise the water flow pressure
Supply voltage varies| Check the supply voltage
Hot water temperature is too low| Flow rate is too high or inlet temperature is too low| Adjust the water flow
Power supply is too low| Check the power supply
MBH 6: A faulty heating element| Replace heating element (by authorised technician)

If the connection cable is damaged, it must be replaced with an original spare cable from the manufacturer by an authorised technician in order to avoid any hazards.
If you cannot rectify the fault with the aid of the troubleshooting table, please contact the customer service.

Spare parts

When ordering spare parts, please always specify the appliance model and serial number.

Fig. 14: “Spare parts”

Customer service address

CLAGE GmbH
Central Customer Service
Pirolweg 1 – 5
21337 Lüneburg
Germany
Tel: +49 · 4131 · 89 01- 40 Fax: +49 · 4131 · 89 01- 41
Email: service@clage.de

If there is a fault with the appliance, please send in the heater with details of the problem and a copy of the sales invoice for examination or repair.

Disposal

Disassembly

1. Switch off the power supply to the instantaneous water heater.
2. Close the shut-off valve in the inlet pipe.
3. Disconnect the electrical connection in the appliance junction box or disconnect the protective earth plug if the appliance is fitted with a plug.
4. Disconnect the water pipes from the connectors of the appliance. This can cause water leak-age.
5. Remove the appliance from the wall bracket. To do so, insert the tip of a wide screwdriver as far as it will go into the latch between the water connection pieces and push the latch slightly upwards. Tilt the appliance forward by max. 15° and remove it by lifting it upwards.
6. Unscrew the wall bracket from the wall.

Fig. 15: “Removing the appliance from the wall bracket”

Environment and recycling

Your product was manufactured from high-quality, reusable materials and components. Please respect in case of discarding that electrical devices should be disposed of separately from household waste at the end of their service life. Therefore, please take this device to a munic-ipal collection point that accepts electronic scrap. Disposing it correctly will support environ-mental protection and will prevent any potential negative effects on human beings and the environment that could arise from inappropriate handling of these devices at the end of their service life. Please contact your local authority for further details of your nearest designated collection point or recycling site.
Business customers: If you wish to discard electronic equipment, please contact your dealer or supplier for further information.

References

• Elinväst – KVALITET – MILJÖ – TEKNIK
• Gasvrij wonen en werken met elektrisch verwarmen
• Home · Instant water heaters, hot water and more! · CLAGE.com/en
• Startseite · Durchlauferhitzer, warmes Wasser und mehr! · CLAGE.de
• Startseite · CLAGE.de
• Mediacenter · CLAGE.de
• Homepage · Doorstroomverwarmers, warm water en meer! · CLAGE.nl
• Prietokové ohrievače vody CLAGE | KAMA.sk

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