STIEBEL ELTRON SNU 5 SLI, SNU 5 SL 1 KW, SNU 5 SLI AUS Operation And Installation Manual

BEDIENUNG UND INSTALLATION OPERATION AND INSTALLATION UTILISATION ET INSTALLATION BEDIENING EN INSTALLATIE OBSLUHA A INSTALACE

OBSŁUGA I INSTALACJA

HASZNÁLATI ÉS TELEPÍTÉSI ÚTMUTATÓ

ЭКСПЛУАТАЦИЯ И УСТАНОВКА

Offener (druckloser) Warmwasser-Kleinspeicher | Open vented (non-pressurised) small water heater | Petit chauffe-eau à écoulement libre (pression nulle) | Open (drukloze) kleine warmwaterboiler | Malý beztlakový zásobník teplé vody |

Otwarty (bezciśnieniowy) mały pojemnościowy ogrzewacz wody | Nyitott rendszerű (nyomásmentes) kisméretű melegvíztároló | Открытый (безнапорный) компактный

накопительный водонагреватель

» SNU 5 SL 1kW » SNU 5 SLi » SNU 5 SLi AUS

antitropfcomfort

°C

Eco

14 | SNU 5 www.stiebel-eltron.com

CONTENTS | SPECIAL INFORMATION

SPECIAL INFORMATION

OPERATION

1. General information �� 15

1.1 Safety instructions �� 15

1.2 Other symbols in this documentation �� 15

1.3 Units of measurement �� 15

2. Safety �� 15

2.1 Intended use �� 15

2.2 General safety instructions ��15

2.3 Test symbols �� 16

3. Appliance description �� 16

3.1 Operation �� 16

4. Cleaning, care and maintenance �� 16

5. Troubleshooting �� 17

INSTALLATION

6. Safety �� 17

6.1 General safety instructions �� 17

6.2 Instructions, standards and regulations �� 17

7. Appliance description �� 17

7.1 Standard delivery �� 17

7.2 Accessories �� 17

8. Preparations �� 18

8.1 Installation site �� 18

9. Installation �� 18

9.1 Appliance installation �� 18

9.2 Water connection �� 18

9.3 Power supply �� 19

10. Commissioning �� 19

10.1 Initial start-up �� 19

10.2 Recommissioning �� 19

11. Settings �� 20

11.1 Setting the temperature limit �� 20

12. Shutdown �� 20

13. Troubleshooting �� 20

14. Service �� 20

14.1 Draining the appliance ��20

14.2 Opening the appliance �� 20

14.3 Descaling the appliance �� 20

14.4 Cleaning the strainer �� 21

14.5 Checking the earth conductor �� 21

14.6 Replacing the power cable �� 21

14.7 Positioning the temperature sensor in its protective pipe �� 21

15. Speciﬁcation �� 21

15.1 Dimensions and connections �� 21

15.2 Wiring diagram �� 22

15.3 Heat-up diagram �� 22

15.4 Country-speciﬁc approvals and certiﬁcations ��22

15.5 Extreme operating and fault conditions �� 22

15.6 Details on energy consumption �� 22

SPECIAL INFORMATION

- The appliance may be used by children aged8 and older and persons with reduced physical, sensory 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 resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.

- When permanently connected to the power supply using a dedicated junction box, the appliance must be able to be isolated from the mains power supply by an isolator that disconnects all poles with at least 3mm contact separation.

- The power cable may only be replaced (for example if damaged) by a qualiﬁed contractor authorised by the manufacturer, using an original spare part.

- Never connect the appliance via a time switch.

- Secure the appliance as described in chapter "Installation/ Installation".

- The appliance must only be installed with an open (non-pressurised) tap.

- Never subject the appliance to water pressure.

- The tap outlet has a vent function. Scale build-up can block the outlet and subject the appliance to pressure.

- Never seal the tap outlet.

- Only use special aerators for non-pressurised water heaters.

- Never extend the tap outlet with a hose

- Drain the appliance as described in chapter "Installation/ Maintenance/ Draining the appliance".

15.7 Data table ��23

GUARANTEE

ENVIRONMENT AND RECYCLING

INSTALLATION TEMPLATE (IN THE MIDDLE OF THESE INSTRUCTIONS)

OPERATION

General information

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ENGLISH

OPERATION

1. General information

The chapters "Special Information" and "Operation" are intended for both the user and qualiﬁed contractors.

The chapter "Installation" is intended for qualiﬁed contractors.

Note

Read these instructions carefully before using the appliance and retain them for future reference. Pass on the instructions to a new user if required.

1.1 Safety instructions

1.1.1 Layout 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.

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

General information is identiﬁed by the adjacent symbol.

 Read these texts carefully.

Symbol Meaning

Material losses (appliance damage, consequential losses and environmental 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

All measurements are given in mm unless stated otherwise.

2. Safety

2.1 Intended use

This open vented (non-pressurised) appliance is designed for heating domestic hot water. The appliance can supply one draw-off point.

This appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used in the same way.

Any other use beyond that described shall be deemed inappropriate. 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

WARNING Burns There is a risk of scalding at outlet temperatures in excess of 43 °C.

WARNING Injury The temperature selector should only be removed by a qualiﬁed contractor.

WARNING Injury The appliance may be used by children aged8 and older and persons with reduced physical, sensory 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 resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.

Where children or persons with limited physical, sensory or mental abilities are allowed to use this appliance, we recommend a permanent temperature limit. A qualiﬁed contractor can set this limit.

OPERATION

Appliance description

16 | SNU 5 www.stiebel-eltron.com

Material losses

The user should protect the appliance and its tap against frost.

Material losses

Never subject the appliance to water pressure. The tap outlet has a vent function. Scale build-up can block the outlet and subject the appliance to pressure.

 Never seal the tap outlet.  Only use special aerators for non-pressurised water

heaters.

 Never extend the tap outlet with a hose

Material losses

Connecting the appliance via a time switch will cause an unintentional reset of the high limit safety cut-out.

 Never connect the appliance to the power supply via

a time switch.

2.3 Test symbols

See type plate on the appliance.

Information for Australia/New Zealand:

Installation complies with standard AS/NZS 3500.4.

3. Appliance description

The open vented (non-pressurised) appliance constantly maintains the water content at the pre-selected temperature. The appliance may only be installed with taps for open vented (non-pressurised) water heaters (see chapter "Installation/ Appliance description/ Accessories").

thermostop function

The thermostop function (thermal separation) prevents the tap becoming hot in standby mode.

Anti-drip function

The anti-drip function prevents expansion water from escaping from the tap during heating. When water is heated, gas bubbles are formed. The amount of gas bubbles depends on the water quality. At temperatures >75°C the rising gas bubbles can cause residual water to drip from the tap outlet.

Subject to design, some taps have a tendency to drip for a short while after being closed. This dripping is caused by residual water escaping from the tap outlet and is not linked to expansion water.

3.1 Operation

You can set any required DHW outlet temperature at the temperature selector. The heat-up indicator illuminates during the heat-up process.

D0000047838

1 Temperature selector 2 Heat-up indicator

Depending on the system, the actual temperatures may vary from the set value.

°C = Cold. On this setting, the appliance is protected from

frost. The tap and the water line are not protected.

Eco = Recommended energy saving setting (approx. 60°C),

minor scaling

85 = Highest selectable temperature

Note

A qualiﬁed contractor can set a temperature limit on the appliance (see chapter "Installation/ Settings/ Setting the temperature limit").

4. Cleaning, care and maintenance

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

cloth is sufﬁcient for cleaning the appliance.

 Check the tap regularly. You can remove limescale deposits

at the outlet using commercially available descaling agents.

Almost every type of water will deposit lime at high temperatures. This settles inside the appliance and affects both the performance and service life. The heating elements should therefore be descaled if necessary. A qualiﬁed contractor who is aware of the local water quality will tell you when the appliance should next be descaled.

OPERATION

Troubleshooting

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ENGLISH

5. Troubleshooting

Problem Cause Remedy

The appliance does not supply hot water.

The temperature selector is set to “°C”.

Switch the appliance ON by turning the temperature selector.

No power at the ap-

pliance.

Check the plug / fuses in the fuse box.

Water can only be drawn at a reduced rate.

The aerator in the tap is scaled up.

Descale / replace the aerator.

Loud boiling noises inside the appliance.

The appliance is scaled up.

Have the appliance descaled by a qualified contractor.

Water drips from the tap outlet during the heat-up process.

Frequent minimal draw-off amounts (<0.4l/min).

Change your draw-off pattern (> 0.4l/min).

If you cannot remedy the fault, notify your qualiﬁed contractor. To facilitate and speed up your request, provide the number from the type plate (000000-0000-000000).

Typ:

Nr.: ...... - .... - ......

D0000047804

SNU 5

INSTALLATION

6. Safety

Only a qualiﬁed contractor should carry out installation, commissioning, maintenance and repair of the appliance.

6.1 General safety instructions

We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

6.2 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations and instructions.

7. Appliance description

The open vented (non-pressurised) appliance is only suitable for undersink installation. The appliance is intended to heat cold potable water and supply it to a single draw-off point.

7.1 Standard delivery

Delivered with the appliance are the following:

- Wall mounting bracket

7.2 Accessories

7.2.1 Required accessories

The following taps are available as accessories for open vented operation:

Mixer taps

- WST, WUT

Mono lever mixer taps

- MEW, MES, MEWC

Sensor tap

- WEN

7.2.2 Further accessories

- Strainer for the "cold water inlet" connection

+ 9 hidden pages

STIEBEL ELTRON SNU 5 SLI, SNU 5 SL 1 KW, SNU 5 SLI AUS Operation And Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual