Stiebel Eltron FCR 18-28: OPERATION

OPERATION: Stiebel Eltron FCR 18-28

CONTENTS | OPERATION

General information

OPERATION

OPERATION

1. General information ��������������������������������������� 14

1.1 Safety instructions ���������������������������������������������� 14

1.2 Other symbols in this documentation ���������������������� 15

1.3 Units of measurement �����������������������������������������15

1. General information

2. Safety �������������������������������������������������������� 15

The chapter "Operation" is intended for appliance users and quali-

2.1 Intended use �����������������������������������������������������15

fied contractors.

2.2 General safety instructions ����������������������������������� 15

The chapter "Installation" is intended for qualified contractors.

2.3 CE designation �������������������������������������������������� 15

2.4 Test symbols ����������������������������������������������������� 15

Note

3. Appliance description ������������������������������������� 15

Read these instructions carefully before using the appli-

ance and retain them for future reference.

4. Settings ����������������������������������������������������� 16

Pass on the instructions to a new user if required.

4.1 Temperature ����������������������������������������������������� 16

4.2 Rapid heating during dual circuit operation �������������� 16

1.1 Safety instructions

5. Cleaning, care and maintenance ������������������������� 16

6. Troubleshooting �������������������������������������������� 16

1.1.1 Structure of safety instructions

INSTALLATION

KEYWORD Type of risk

7. Safety �������������������������������������������������������� 17

!

Here, possible consequences are listed that may result

7.1 General safety instructions ����������������������������������� 17

from failure to observe the safety instructions.

7.2 Instructions, standards and regulations ������������������� 17

Steps to prevent the risk are listed.

7.3 Water connection and safety assembly �������������������� 17

8. Appliance description ������������������������������������� 17

1.1.2 Symbols, type of risk

8.1 Standard delivery ����������������������������������������������� 17

Symbol Type of risk

8.2 Accessories ������������������������������������������������������� 17

Injury

9. Installation �������������������������������������������������� 17

!

9.1 Power connection ���������������������������������������������� 18

Electrocution

10. Commissioning ��������������������������������������������� 18

10.1 Commissioning ��������������������������������������������������18

Burns

10.2 Recommissioning ����������������������������������������������� 18

(burns, scalding)

11. Settings ����������������������������������������������������� 19

11.1 Temperature �����������������������������������������������������19

1.1.3 Keywords

11.2 Limiting the temperature selection ������������������������� 19

12. Troubleshooting �������������������������������������������� 19

KEYWORD Meaning

DANGER Failure to observe this information will result in serious

13. Maintenance ������������������������������������������������ 19

injury or death.

13.1 Checking the safety assembly �������������������������������� 19

WARNING Failure to observe this information may result in serious

injury or death.

13.2 Descaling the flanged immersion heater ������������������ 19

CAUTION Failure to observe this information may result in non-

13.3 Replacing the heating elements and protective pipe���� 19

serious or minor injury.

14. Specification ������������������������������������������������ 20

14.1 Dimensions, immersion depths and connections ��������20

14.2 Wiring diagrams and connections ��������������������������20

14.3 Specification ����������������������������������������������������� 23

GUARANTEE

ENVIRONMENT AND RECYCLING

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OPERATION

Safety

1.2 Other symbols in this documentation

2.2 General safety instructions

Note

WARNING Electrocution

General information is identified by the symbol shown

Never spray the appliance with water or other liquids.

on the left.

Read these texts carefully.

WARNING Burns

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

cess of 43 °C.

Symbol Meaning

Material losses

WARNING Injury

!

(Appliance and consequential losses, environmental pol-

ENGLISH

!

The appliance may be used by children aged 8 and up

lution)

and persons with reduced physical, sensory or mental

Appliance disposal

capabilities or a lack of experience provided that they

are supervised or they have been instructed on how to

use the appliance safely and have understood the result-

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

ing risks. Children must never play with the appliance.

tion you need to take is described step by step.

Children must never clean the appliance or perform user

maintenance unless they are supervised.

1.3 Units of measurement

Material losses

!

Note

Condensate can drip from the appliance.

All measurements are given in mm unless stated oth-

Never store objects below the appliance.

erwise.

Note

The appliance is under pressure.

During the heat-up process, expansion water will drip

2. Safety

from the safety valve.

If water continues to drip when heating is complet-

2.1 Intended use

ed, please inform your heating contractor.

The appliance is intended for installation in cylinders in a sealed

heating or DHW heating system.

2.3 CE designation

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

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

The CE designation shows that the appliance meets all essential

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

requirements according to the:

used in the same way.

- Electromagnetic Compatibility Directive

Any other use beyond that described shall be deemed inappropri-

- Low Voltage Directive

ate. Observation of these instructions and of instructions for any

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

2.4 Test symbols

Using the appliance for heating fluids other than water or water

See type plate on the appliance.

supplemented with chemicals, such as brine, is also deemed in-

appropriate.

3. Appliance description

The appliance electrically heats DHW and heating water. The

temperature can be adjusted using the temperature selector, de-

pending on the type of appliance or the heating contractor. Once

the selected temperature has been reached the appliance shuts

down. If required, the appliance automatically restarts in single

circuit operation and in dual circuit operation during off-peak tariff

periods / enable times.

The appliance is also protected against frost on the temperature

setting "cold" as long as the power supply is guaranteed. The

appliance switches on in good time and heats the water. The tap

and the mains water supply line are not protected against frost

by the appliance.

www.stiebel-eltron.com FCR 28 | FCR 18 | 15

OPERATION

Settings

4. Settings

5. Cleaning, care and maintenance

Have the electrical safety of the appliance regularly checked

4.1 Temperature

by an electrician.

Appliance type with external temperature selector

Scaling

The temperature can be variably adjusted. In the delivered con-

Almost every type of water will deposit lime at high tempera-

dition, temperature selection is limited. This limitation can be

tures. Limescale will settle inside the appliance and affect its

cancelled by a qualified contractor (see chapter "Installation/

function and service life. The heating elements must there-

Settings").

fore be descaled from time to time. A qualified contractor

You can interrupt the heating process by setting the temperature

who is aware of the local water quality will tell you when the

selector to "cold".

next service is due.

Check the taps/valves regularly. You can remove limescale

deposits at the tap outlets using commercially available des-

caling agents.

Regularly activate the safety valve to prevent it from becom-

ing blocked e.g. by limescale deposits.

6. Troubleshooting

26�02�79�0027

Fault Cause Remedy

• Cold

The water does not heat

There is no power. Check the fuses/MCBs in

I Low temperature setting, 35°C

up.

your fuse box.

II Recommended setting for energy saving,

The temperature is incor-

Check the temperature

low scaling, 60°C

rectly adjusted.

setting.

III Maximum temperature setting, 85°C

The flow rate is low.

The aerator in the taps or

Clean or descale the

shower heads is dirty or

aerator or shower head.

Depending upon the system, the temperatures may vary from

scaled-up.

the set value.

Water drips from the

The valve seat is con-

Depressurise and isolate

safety assembly after

taminated.

the appliance from the

Appliance type with temperature selector inside the control

heating has stopped.

power supply. Request

panel

your qualified contractor

to attend.

The temperature can be freely selected by the qualified contractor

(see chapter "Installation / Settings").

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

Factory setting: 60°C

facilitate and speed up your enquiry, please provide the serial

number from the type plate (no. 000000-0000-000000):

4.2 Rapid heating during dual circuit operation

For appliance types with dual circuit operation, the heating con-

tractor can install a pushbutton to control the rapid heat-up func-

tion remotely. If required, you can switch this on. The rapid heat-

up function switches off when the selected temperature has been

FCR Nr.: 000000 - 0000 - 000000

reached and will not switch on again.

Made in Germany

FCR Nr.: 000000 - 0000 - 000000

Made in Germany

26�02�79�0076

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