Stiebel Eltron SHC15AU, SHC10AU User Manual

OPERATION AND INSTALLATION

Sealed unvented (pressurised) small water heater

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CONTENTS | SPECIAL INFORMATION

SPECIAL INFORMATION

OPERATION

1. General information ��3

1.1 Safety instructions �� 3

1.2 Other symbols in this documentation �� 3

1.3 Units of measurement �� 3

2. Safety �� 3

2.1 Intended use �� 3

2.2 General safety instructions �� 3

2.3 CE designation �� 4

2.4 Test symbols �� 4

3. Appliance description ��4

4. Cleaning, care and maintenance ��4

5. Troubleshooting ��4

INSTALLATION

6. Safety �� 5

6.1 General safety instructions �� 5

6.2 Instructions, standards and regulations �� 5

7. Appliance description ��5

7.1 Standard delivery �� 5

8. Preparations �� 5

8.1 Installation site �� 5

9. Installation �� 6

9.1 Safety valve installation �� 6

9.2 Appliance installation �� 6

9.3 Water connection �� 6

9.4 Power supply �� 6

10. Commissioning ��7

10.1 Initial start-up �� 7

10.2 Recommissioning �� 7

11. Shutdown ��7

12. Troubleshooting ��7

12.1 Activate high limit safety cut-out �� 7

13. Maintenance ��7

13.1 Checking the safety valve �� 7

13.2 Draining the appliance �� 7

13.3 Opening the appliance �� 8

13.4 Removing the ﬂanged immersion heater and temperature controller/ high limit safety cut-out �� 8

13.5 Removing the protective anode �� 8

13.6 Fitting the ﬂanged immersion heater and temperature controller/ high limit safety cut-out �� 8

13.7 Descaling the appliance �� 8

13.8 Checking the protective anode �� 9

13.9 Replacing the power cable �� 9

13.10 Checking the earth conductor �� 9

14. Speciﬁcation ��9

14.1 Dimensions and connections �� 9

14.2 Wiring diagram �� 9

14.3 Heat-up diagram �� 9

14.4 Country-speciﬁc approvals and certiﬁcations �� 9

14.5 Extreme operating and fault conditions �� 9

14.6 Data table �� 10

F0AA0=CH

ENVIRONMENT AND RECYCLING

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.

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

- Observe the maximum permissible pressure (see chapter "Installation/ Speciﬁcation/ Data table").

- Install either a tempering valve or thermostatic mixing valve in all systems intended for personal hygiene.

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

- The appliance is pressurised. During the heat-up process, expansion water will drip from the safety valve.

- Regularly activate the safety valve to prevent it from becoming blocked, e.g. by limescale deposits.

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OPERATION

ENGLISH

General information

- Size the drain pipe so that water can drain off unimpeded when the safety valve is fully opened.

- Fit the drain pipe of the safety valve with a constant downward slope and in a room free from the risk of frost.

- The safety valve drain must remain open to the atmosphere.

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 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.

1.1.2 Symbols, type of risk

Symbol Type of risk

Injury

Electrocution

Burns (burns, scalding)

1.2 Other symbols in this documentation

Note

General information is identiﬁed by the adjacent symbol.

 Read these texts carefully.

Symbol Meaning

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

tion you need to take is described step by step.

Material losses (appliance damage, consequential losses and environmental pollution)

Appliance disposal

1.3 Units of measurement

Note

All measurements are given in mm unless stated otherwise.

2. Safety

2.1 Intended use

This sealed unvented (pressurised) appliance is intended for heating domestic hot water. The appliance can supply one or more draw-off points.

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

DANGER

Failure to operate the relief valve easing gear at least once every six months may result in the water heater exploding. Continuous leakage of water from the valve may indicate a problem with the water heater.

WARNING Burns During operation, the tap and safety valve can reach

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.

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temperatures in excess of 60°C. There is a risk of scalding at outlet temperatures in excess of 43 °C.

OPERATION

Appliance description

WARNING Burns The water in the appliance can be heated to temperatures in excess of 60 °C.

 In Australia and New Zealand observe regulations

in accordance with AS/NZS 3500.4.

 Install either a tempering valve or thermostatic

mixing valve in all systems intended for personal hygiene. With this the delivery temperature for personal hygiene outlets must be limited to 50 °C.

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.

Material losses

The user should protect the appliance, the water pipes, the safety valve and the tap against frost.

Material losses

If the drain pipe of the safety valve is sealed, expanding water can lead to water damage.

 Never close the drain pipe.

2.3 Test symbols

See type plate on the appliance.

Installation shall comply with standard AS/NZS 3500.4.

4. Cleaning, care and maintenance

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

cloth is sufﬁcient for cleaning the appliance.

 Check the taps regularly. Limescale deposits at the tap out-

lets can be removed using commercially available descaling agents.

 Regularly activate the safety valve to prevent it from becom-

ing blocked, e.g. by limescale deposits.

 Have the protective anode checked by a qualiﬁed contractor

after the ﬁrst 2years of operation. The qualiﬁed contractor will then determine the intervals at which it must be checked thereafter.

Almost every type of water will deposit limescale 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 next descaling is due.

5. Troubleshooting

Problem Cause Remedy

The appliance does not supply hot water.

Water can only be drawn at a reduced rate.

Loud boiling noises inside the appliance.

Water drips from the safety valve after heat-up.

Water drips from the safety valve continuously.

No power at the appliance.

The aerator in the tap is scaled up or dirty.

The appliance is scaled up.

The safety valve is scaled up or dirty.

The pressure in the line is above 550 kPa.

Check the plug / fuses in the fuse box.

Descale / replace the aerator.

Have the appliance descaled by a qualified contractor.

Switch the appliance off. Depressurise the appliance by disconnecting it from the power and water supply. Have the safety valve checked by a qualified contractor.

Install or readjust pressure reduction valve, set to 550 kPa.

3. Appliance description

The appliance constantly keeps the water content available at the preset temperature. The appliance switches on automatically as soon as its temperature falls below the set value.

Subject to season, varying cold water temperatures can result in different maximum mixed water and outlet volumes.

Note

The appliance is under mains water pressure. The water volume increases as the cylinder is being heated up. During this process, expansion water drips through the safety valve. This is a necessary and normal process.

If you cannot remedy the fault, notify your qualiﬁed contractor. To facilitate and speed up your enquiry, please provide the serial number from the type plate. (000000):

O-No.

F-No.

000000

0000 - 000000

D0000039382

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ENGLISH

INSTALLATION

Safety

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 sealed unvented (pressurised) appliance is only suitable for undersink installation. The appliance is intended for heating cold water and to supply one or several draw-off points.

The appliance may only be installed with pressure taps and in conjunction with the safety valve supplied and a non-return valve in the cold water supply line (see chapter "Installation/ Appliance description/ Standard delivery").

The safety valve supplied protects the appliance against unacceptable excess pressure. The maximum allowed opening pressure is 700kPa.

If the water supply pressure exceeds 550kPa, a pressure reducing valve set to a maximum of 550kPa, and compliant with AS1357.2 and installed in accordance with AS3500.4.2 must be ﬁtted in the installation.

The enamelled internal steel cylinder is equipped with a protective anode. The protective anode protects the inner cylinder against corrosion.

8. Preparations

Water installation

The safety valve supplied and a non-return valve for the cold water supply line are essential.

8.1 Installation site

Material losses

Install the appliance in a room free from the risk of frost.

Material losses

Mount the appliance on the wall. The wall must have a sufﬁcient load-bearing capacity.

Material losses

The appliance is only suitable for undersink installation. The water connections of the appliance point upwards.

Note

Ensure that the appliance is freely accessible for maintenance work.

Always install the appliance vertically and near the draw-off point.

D0000050301

7.1 Standard delivery

The following are delivered with the appliance:

- Wall mounting bracket

- Safety valve G1/2

- Reducer from R3/4 male to G1/2 female

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