STIEBEL ELTRON DHM 6 220 Bedienungsanleitung

Hydraulically controlled mini instantaneous water heater

» DHM 6 220

OPERATION AND INSTALLATION

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CONTENTS | SPECIAL INFORMATION

SPECIAL INFORMATION

OPERATION

1. General information ��3

2. Safety��5

3. Appliance description ��6

4. Settings ��6

5. Cleaning, care and maintenance ��6

6. Troubleshooting ��7

INSTALLATION

7. Safety��7

8. Appliance description ��8

9. Preparations ��8

10. Installation��9

11. Commissioning �� 12

12. Shutting down�� 13

13. Troubleshooting �� 13

14. Maintenance �� 14

15. Speciﬁcation �� 15

GUARANTEE

ENVIRONMENT AND RECYCLING

SPECIAL INFORMATION

- The appliance may be used by children aged 3

and up and persons with reduced physical, sen-

sory or mental capabilities or a lack of experience

and know-how, provided that they are supervised

or they have been instructed on how to use the

appliance safely and have understood the result-

ing risks. Children must never play with the ap-

pliance. Children must never clean the appliance

or perform user maintenance unless they are

supervised.

- During operation, the tap can reach temperatures

in excess of 50°C. There is a risk of scalding at

outlet temperatures in excess of 43°C.

- Ensure the appliance can be separated from the

power supply by an isolator that disconnects all

poles with at least 3mm contact separation.

- The speciﬁed voltage must match the mains

voltage.

ENGLISH

www.stiebel-eltron.com DHM 6 220 | 3

OPERATION

GENERAL INFORMATION

- In the case of damage, the power cable must only

be replaced by a qualiﬁed contractor authorised

by the manufacturer using the original spare

part.

- Secure the appliance as described in chapter „In-

stallation/ Installation“.

- Observe the maximum permissible pressure (see

chapter „Speciﬁcation/ Data table“).

- The speciﬁc water resistivity of the mains water

supply must not be undershot (see chapter “In-

stallation / Speciﬁcation / Data table”).

- Drain the appliance as described in chap-

ter „Installation/ Maintenance/ Draining the

appliance“.

OPERATION

1. General information

The chapter “Operation” is intended for appliance users and qual-

iﬁed contractors.

The chapter “Installation” is intended for qualiﬁed contractors.

Note

Read these instructions carefully before using the appli-

ance and retain them for future reference.

Pass on the instructions to a new user if required.

1.1 Safety instructions

1.1.1 Structure of safety instructions

KEYWORD Type of risk

Here, possible consequences are listed that may result

from failure to observe the safety instructions.

 Steps to prevent the risk are listed.

OPERATION

GENERAL INFORMATION

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1.1.2 Symbols, type of risk

Symbol Type of risk

Injury

Electrocution

Burns

(burns, scalding)

1.1.3 Keywords

KEYWORD Meaning

DANGER Failure to observe this information will result in serious

injury or death.

WARNING Failure to observe this information may result in serious

injury or death.

CAUTION Failure to observe this information may result in non-seri-

ous or minor injury.

1.2 Other symbols in this documentation

Note

Notes are bordered by horizontal lines above and below

the text. General information is identiﬁed by the symbol

shown on the left.

 Read these texts carefully.

Symbol

Material losses

(appliance damage, consequential losses and environmen-

tal pollution)

Appliance disposal

 This symbol indicates that you have to do something. The ac-

tion you need to take is described step by step.

1.3 Units of measurement

Note

Unless speciﬁed otherwise, all dimensions are given in

mm.

ENGLISH

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OPERATION

SAFETY

2. Safety

2.1 Intended use

This appliance is intended for domestic use. It can be used safely

by untrained persons. The appliance can also be used in a non-do-

mestic environment, e.g. in a small business, as long as it is used

in the same way.

This appliance is designed to heat DHW. The appliance is designed

for one hand washbasin.

Any other use beyond that described shall be deemed inappropri-

ate. Observation of these instructions and of instructions for any

accessories used is also part of the correct use of this appliance.

2.2 General safety instructions

DANGER Scalding

During operation, the tap can reach temperatures in ex-

cess of 50°C.

There is a risk of scalding at outlet temperatures in ex-

cess of 43°C.

DANGER Electrocution

Any damaged power cables must be replaced by a qual-

iﬁed electrician. This prevents potential hazards from

arising.

WARNING Injury

The appliance may be used by children aged 3 and up and

persons with reduced physical, sensory or mental capa-

bilities or a lack of experience and know-how, provided

that they are supervised or they have been instructed on

how to use the appliance safely and have understood

the resulting risks. Children must never play with the

appliance. Children must never clean the appliance or

perform user maintenance unless they are supervised.

Material losses

Protect the appliance and tap against frost.

Material losses

Only use the special aerator provided. Prevent scale

build-up at the tap outlets (see chapter "Cleaning, care

and maintenance").

2.3 Test symbols

See type plate on the appliance.

OPERATION

APPLIANCE DESCRIPTION

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3. Appliance description

The hydraulically controlled mini instantaneous water heater

heats the water directly at the draw-off point. The heating system

starts automatically when the tap is opened. The short pipe runs

ensure that energy and water losses are minimal.

The DHW output depends on the cold water temperature, the heat-

ing output and the ﬂow rate.

The bare wire heating system is suitable for hard and soft water

areas. This heating system has a low susceptibility to scale build-

up. The heating system ensures quick and efﬁcient DHW provision

at the hand washbasin.

Fitting the special aerator supplied provides an optimum water jet.

4. Settings

The appliance heating system switches on automatically as soon

as you open the DHW valve at the tap or activate the sensor of a

sensor tap. The water is heated. The water temperature can be

adjusted at the tap:

For the start volume, see chapter “Speciﬁcation/ Data table/ On”.

Increasing the temperature

 Reduce the ﬂow rate at the tap.

Reducing the temperature

 Open the tap further or add more cold water.

Following an interruption of the water supply

See chapter “Commissioning/ Recommissioning”.

5. Cleaning, care and maintenance

 Never use abrasive or corrosive cleaning agents. A damp

cloth is sufﬁcient for cleaning the appliance.

 Check the taps/valves regularly. Limescale deposits at the

spouts can be removed using commercially available descal-

ing agents.

 Have the electrical safety of the appliance regularly checked

by an electrician.

 Regularly descale or replace the special aerator (see chapter

“Appliance description/Accessories”).

ENGLISH

www.stiebel-eltron.com DHM 6 220 | 7

INSTALLATION

TROUBLESHOOTING

6. Troubleshooting

Problem Cause Remedy

The appliance will not

start despite the DHW

valve being fully open.

No power to the appli-

ance.

Check the fuses/MCBs in

your fuse box.

The aerator in the tap is

scaled up or dirty.

Clean and/or descale the

aerator or replace the

special aerator.

The water supply has

been interrupted.

Vent the appliance and

the cold water inlet line

(see chapter "Settings").

If you cannot remedy the fault, notify your qualiﬁed contractor. To

facilitate and speed up your request, provide the serial number

from the type plate (000000-0000-000000).

DHM 6-220 Nr.: 000000-0000-000000

INSTALLATION

7. Safety

Only a qualiﬁed contractor should carry out installation, commis-

sioning, maintenance and repair of the appliance.

7.1 General safety instructions

We guarantee trouble-free function and operational reliability only

if original accessories and spare parts intended for the appliance

are used.

Material losses

Observe the max. permissible inlet temperature. Higher

temperatures may damage the appliance. You can limit

the inlet temperature by means of a central thermostatic

valve (see chapter "Appliance description/ Accessories").

INSTALLATION

APPLIANCE DESCRIPTION

8| DHM 6 220 www.stiebel-eltron.com

7.2 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations

and instructions.

The speciﬁc electrical resistance of the water must not fall below

that stated on the type plate. In a linked water network, factor in

the lowest electrical resistance of the water (see chapter “Speci-

ﬁcation/ Data table”). Your water supply utility will advise you of

the speciﬁc electrical water resistance or conductivity.

8. Appliance description

8.1 Standard delivery

The following are delivered with the appliance:

- Sieve inside the cold water inlet

- Special aerator “SR”

- Connection hose 3/8, 500mm long, with gaskets*

- Tee 3/8*

- Company logo for oversink installation

*for the connection as pressure-tested appliance

8.2 Accessories

Special aerator “SR”*

- SR 5: Part number 270582

* For use in thread M22/M24.

Pressure-tested tap

- WEH Sensor tap for washbasins

ZTA 3/4 - central thermostatic valve

Thermostatic valve for central premixing, for example for operat-

ing an instantaneous water heater with a solar thermal system.

9. Preparations

 Flush the water line thoroughly.

Water installation

A safety valve is not required.

Taps

 Use suitable taps (see chapter “Appliance description/

Accessories”).

ENGLISH

www.stiebel-eltron.com DHM 6 220 | 9

INSTALLATION

Note

Fitting the special aerator supplied provides an optimum

water jet.

10. Installation

10.1 Installation site

Install the appliance in a room free from the risk of frost and near

the draw-off tap.

Ensure that the lateral ﬁxing screws for the cover are always ac-

cessible.

The appliance is only suitable for undersink installation (water

connections at the top).

DANGER Electrocution

Protection rating IP25 is only ensured if the appliance

back panel is ﬁtted.

 Always ﬁt the appliance back panel.

10.2 Installation options

Undersink installation, pressure-tested, with pressure-tested

tap

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INSTALLATION

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10.2.1 Appliance installation

 Mount the appliance on the wall.

Note

The wall must have a sufﬁcient load-bearing capacity.







26_02_05_0083

 Undo the cover ﬁxing screws by two turns.

 Undo the snap fastener using a screwdriver.

 Remove the appliance cover with the heater towards the

front.





26_02_05_0084

 Using pliers, break out the knock-out for the power cable

in the appliance cover. Correct the contours with a ﬁle if

necessary.

 Use the appliance back panel as a drilling template.

 Secure the appliance back panel to the wall with suitable

rawl plugs and screws.







26_02_05_0085

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