FCR 28120 E - Uncategorized STIEBEL ELTRON - Free user manual and instructions

USER MANUAL FCR 28120 E STIEBEL ELTRON

1.3 Units of measurement 17

2.2 General safety instructions 17

4.2 Rapid heat-up in dual circuit operation 18

5. Cleaning, care and maintenance 18

7.1 General safety instructions 19

7.2 Instructions, standards and regulations 19

7.3 Water connection and safety assembly 19

9.1 Electrical connection 20

10. Commissioning 20

10.1 Initial start-up 20

10.2 Recommissioning 21

13.2 Cleaning and descaling the appliance 21

13.3 Replacing the heating elements and protective pipe 21

14.1 Dimensions, immersion depths and connections 22

SPECIAL INFORMATION - The appliance may be used by children over 3 years of age and persons with reduced physi- cal, sensory or mental capabilities or a lack of experience and expertise, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the potential risks. Children aged 3 to 8 years may only operate the tap con- nected to the appliance. Children must never play with the appliance. Cleaning and user maintenance must not be carried out by chil- dren without supervision. - The connection to the power supply is only possible as a permanent connection with a permanently installed electric cable. En- sure the appliance can be separated from the power supply by an isolator that discon- nects all poles with at least 3mm contact separation. - Secure the appliance as described in chapter “Installation/ Installation”. - Fill the cylinder with water before switching on the appliance. - The appliance may only be installed in cylin- ders that are fitted with metal water inlet and outlet pipes. - Metal parts of the cylinder that can be touched and that are in contact with water must be permanently and reliably connected to the protective conductor. - If an indirect coil is installed in the same cyl- inder, limit the maximum temperature for this appliance to the maximum temperature for the flanged immersion heater. This prevents the tempering device of the flanged immer- sion heater from responding.OPERATION General information 16 | FCR 28 www.stiebel-eltron.com - Information on the volume range of the cyl- inder, the volume above the heating element and the installation position can be found in chapter “Specification/ Technical data table”. Install a type-tested safety valve in the cold water inlet of the cylinder. Please note that, depending on the supply pressure, you may also need a pressure reducing valve. - Size the drain 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 fall in a room free from the risk of frost. - The drain connection of the safety valve must remain open to the atmosphere. - Install a residual current device (RCD). OPERATION

1. General information

The chapter “Operation” is intended for appliance users and qual-ified contractors.The chapter “Installation” is intended for qualified contractors. NoticeRead these instructions carefully before using the appli-ance. Keep them in a safe place.Pass on the instructions to a new user if required.1.1 Safety instructions1.1.1 Structure of safety instructions

SIGNAL WORD Type of riskLists possible consequences of a failure to observe the safety instructions.f Indicates steps to prevent the risk.1.1.2 Symbols, type of riskSymbol Type of risk

Burns(burns, scalding) 1.1.3 Signal wordsSIGNAL WORD 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 moderate or minor injury.

NoticeGeneral information is indicated by the adjacent symbol.f Read these texts carefully.Symbol Meaning

Property damage(appliance damage, consequential losses and environmen-tal pollution)

Appliance disposal f 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

NoticeAll measurements are given in mm unless stated oth-erwise.

The appliance is intended for installation in cylinders in a pres-sure-tested heating or DHW heating system.The appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in non-do- mestic environments, e.g.in small businesses, as long as it is used in the same way.Any other use beyond that described shall be deemed inappro- priate. Observation of these instructions and of the instructions for any accessories used is also part of the correct use of this unit.Using the appliance for heating fluids other than water or for water supplemented with chemicals, such as brine, is also deemed inappropriate.

2.2 General safety instructions

WARNING ElectrocutionNever spray the appliance with water or other liquids. WARNING BurnsThere is a risk of scalding at outlet temperatures in ex-cess of 43°C.

WARNING InjuryThe 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 aged 3 to 8 years may only operate the tap connected to the appliance. Children must never play with the appliance. Cleaning and user maintenance must not be carried out by children without supervision.

Property damageCondensate can drip from the appliance.f Never store objects below the appliance. NoticeThe appliance is pressurised.During the heat-up process, expansion water will drip from the safety valve.f If water continues to drip once heat-up is complete, please inform a qualified contractor.

See type plate on the appliance.

3. Appliance description

The appliance electrically heats DHW and heating water. Depend-ing on the type of appliance, the temperature can be adjusted by yourself or a qualified contractor using the temperature selector. 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 protected against frost so long as the power supply is guaranteed, even on the “cold” temperature setting. 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.

Appliance type with temperature selector inside the control panel The temperature can be freely selected by a qualified contractor (see chapter “Installation/ Settings”). Factory setting: 60°C

4.2 Rapid heat-up in dual circuit operation

For appliance types with dual circuit operation, the qualified con- tractor can install a button to control the rapid heat-up function remotely. If required, you can switch this on. The rapid heat-up function switches off when the selected temperature has been reached and will not switch on again automatically.

5. Cleaning, care and maintenance

f Have the electrical safety of the appliance regularly checked by a qualified contractor. Scaling f Almost every type of water will deposit limescale at high temperatures. Limescale will settle inside the appliance and affect its function and service life. The heating elements must therefore be descaled from time to time. A qualified contrac- tor who is aware of the local water quality will tell you when the next service is due. f Check the taps regularly. Limescale deposits at the tap out- lets can be removed using commercially available descaling agents. f Regularly activate the safety valve to prevent it from becom- ing blocked e.g. by limescale deposits.

Fault Cause Remedy The water does not heat up. There is no power. Check the fuses/ MCBs in your fuse box/ distribu- tion board. The temperature is incor- rectly adjusted. Check the temperature setting. The flow rate is low. The aerator in the taps or shower heads is dirty or scaled-up. Clean or descale the aer- ator or shower head. Water drips from the safety assembly after heating has stopped. The valve seat is contam- inated. Depressurise and isolate the appliance from the power supply. Contact a qualified contractor. If you cannot remedy the fault, notify a qualified contractor. To facilitate and speed up your enquiry, please provide the serial number from the type plate (no. 000000-0000-000000): Nr.: 000000-0000-000000Made in Germany D0000117437ENGLISH www.stiebel-eltron.com FCR 28 | 19 INSTALLATION Safety INSTALLATION

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 functional and operational reliability only if original accessories and spare parts intended for the ap- pliance are used.

7.2 Instructions, standards and regulations

Notice Observe all applicable national and regional regulations and instructions.

7.3 Water connection and safety assembly

Notice Carry out all water connection and installation work in accordance with regulations. The water inlet and outlet pipes of the cylinder in which the ap- pliance is installed must be made of metal. Metal parts of the cylinder that can be touched and that are in contact with water must be permanently and reliably connected to the protective conductor. Notice A safety valve is required. The max. permissible pressure must not be exceeded (see chapter “Specification/ Data table” and cylinder specification). f Install a type-tested safety valve in the cold water inlet. Please note that, depending on the supply pressure, you may also need a pressure reducing valve. f Size the drain so that water can drain off unimpeded when the safety valve is fully opened. f Fit the drain pipe of the safety valve with a constant fall in a room free from the risk of frost. f The drain connection of the safety valve must remain open to the atmosphere.

The following are delivered with the appliance: - PG29 cable gland - Fixing screws, corrugated washers - Jumpers D0000119253

Required accessories Safety assemblies and pressure reducing valves are available to suit the prevailing supply pressure. These type-tested safety assemblies protect the appliance against impermissible excess pressure. Additional accessories A mating flange is available as an accessory.

Notice For the installation of the appliance, the cylinder must be fitted with a mating flange (see chapter “Appliance description / Accessories”). Notice The control panel must not be thermally insulated to pre- vent any excessively high temperatures from occurring inside the control panel. The condensate drain aperture in the control panel must remain open while the cylinder is thermally insulated so that any condensate that occurs can drip off freely. f Observe the required torque values during installation (see chapter “Specification/ Data table”). f Always install the appliance horizontally with the cable en- tries facing downwards. f Always install the appliance with heating elements and a protective pipe arranged in parallel. For this, use the screws supplied. Realign the components where necessary.20 | FCR 28 www.stiebel-eltron.com INSTALLATION Commissioning

9.1 Electrical connection

WARNING Electrocution Carry out all electrical connection and installation work in accordance with relevant regulations. WARNING Electrocution The connection to the power supply is only possible as a permanent connection with a permanently installed electric cable. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3mm contact separation. WARNING Electrocution Ensure that the appliance is connected to the earth con- ductor. Property damage Install a residual current device (RCD).

Property damage Observe the type plate. The specified voltage must match the mains power supply.

Property damage Never switch on the power before filling the appliance. f Remove the three screws from the cover panel cover. f Remove the control panel lid. f Select a cable of the cross-sectional area suited to the load of the appliance. f Prepare the power cable. D0000117717 f Ensure that the protective conductor is longer than the other conductors. f Feed the power cable through the cable entry into the control panel. The PG21 cable gland for cable diameters up to 18mm is prefitted. f For cable diameters larger than 18mm, first replace the PG21 cable gland with the PG29 cable gland supplied. f Connect the required load to the terminal block in the appli- ance in accordance with the wiring diagrams. D0000119111

1 Terminal block 2 Top-hat rail 3 Upper row of terminals 4 Lower row of terminals Example with 2 jumpers: D0000119252 f Information on the connection options can be found in chap- ter “Specification/ Wiring diagrams and connections”) f Refit the control panel cover and secure it with the screws. f Appliance type with dual circuit operation: Use a ballpoint pen to mark the selected connected load and voltage on the type plate.

10.1 Initial start-up

f Fill the system with water.

Property damage Boiling dry destroys the thermostat, which must then be replaced. The high limit safety cut-out must be reset.

Property damage If an indirect coil is installed in the same cylinder, limit the maximum temperature for this appliance to the maxi- mum temperature for the flanged immersion heater. This prevents the tempering device of the flanged immersion heater from responding. f Switch the appliance on electrically.ENGLISHwww.stiebel-eltron.com FCR 28 | 21 INSTALLATION Settings Appliance handoverf Explain the functions of the appliance to the user. Show the user how to operate the appliance.f Make users aware of potential dangers.f Hand over these instructions.

10.2 Recommissioning

See chapter “Initial start-up”.

Appliance type with temperature selector inside the control panel 85°C 60°C 35°C 2602790028f The temperature is variably adjustable.f Factory setting 60°C (the temperature selector clicks into place at this setting).

Fault Cause RemedyThe water does not heat up. The high limit safety cut-out has responded because the controller is faulty.Replace the thermostat and press the high limit safety cut-out reset button.

The high limit safety cut-out has responded because the temperature has fallen below -15°C.Press the reset button.

A heating element is faulty. Replace the heating ele-ment or flanged immersion heater.

The high limit safety cut-out has responded because an indirect coil in the same cylinder is set too high.Limit the maximum tem-perature of the indirect coil. The safety valve drips when heating is switched off.The valve seat is contam-inated. Clean the valve seat. D0000117439High limit safety cut-out reset button

WARNING ElectrocutionBefore any work on the appliance, disconnect all poles from the power supply.

13.1 Checking the safety assembly

f Check the safety assembly regularly.

13.2 Cleaning and descaling the appliance

f Never use descaling pumps.f Only descale the flanged immersion heater after dismantling and never treat the cylinder surface or signal anode with descaling agents.For the torque of the flange screws, see chapter “Specification/ Dimensions and connections”

13.3 Replacing the heating elements and protective

pipe f Install the electrically insulated heating element and protec-tive pipes into the flange plate.

Property damageThe corrosion protection resistor must not be damaged or removed during maintenance work.22 | FCR 28 www.stiebel-eltron.com INSTALLATION Specication 3 Heating element

1 Corrosion protection resistor (390Ω) f Connect the heating elements with the cylinder via the corro- sion resistor. The corrosion resistor acts to balance the potential and prevents power leakage corrosion on the heating elements.

14.1 Dimensions, immersion depths and connections

D0000117550 1 Heating element 6kW connected load: 3 x 2 kW 9kW connected load: 3 x 3kW 12kW connected load: 6 x 2 kW 18 kW connected load: 6 x 3 kW 2 Contactor 3 High limit safety cut-out 4 Temperature controller Connection example for single circuit operation with power- OFF contact L1 L2 L3 N 4 5 D0000117769D0000117768 1 Power-OFF contact, installed by the qualified contractor

1 Power-OFF contact, installed by the qualified contractor 2 Button for controlling the rapid heat-up function remotely, installed by the qualified contractor 3 Jumper During the economy tariff period (power-OFF), it is possible to switch on the rapid heat-up function (peak tariff). Version 2: L1 L2 L3 N 1 2 3 4 D0000117755D0000117555

1 Power-OFF contact, installed by the qualified contractor 2 Button for controlling the rapid heat-up function remotely, installed by the qualified contractor During the economy tariff period (power-OFF), the rapid heat-up function (peak tariff) can only be switched on if the circuit breaker is in positionII. Connection example for dual meter reading L1 L2 L3 N 1 2 3 4 K1 K2 K2 K1 D0000117770D0000117770

K1 Contactor 1, installed by the qualified contractor K2 Contactor 2, installed by the qualified contractor 1 Button for controlling the rapid heat-up function remotely, installed by the qualified contractor 2 Power-OFF contact, installed by the qualified contractor 3 Off-peak tariff 4 Peak tariff 5 Jumper Connection example for single circuit operation FCR 28/120, part number 071332 FCR 28/120 CrNi, part number 234503 6kW Circuit breaker I 12kW Circuit breaker II FCR 28/180, part number 071333 9kW Circuit breaker I 18kW Circuit breaker IIENGLISH www.stiebel-eltron.com FCR 28 | 25 INSTALLATION Specication

1 Jumper With power-OFF contact: L1 L2 L3 N 1 2 3 4 D0000117771D0000117771 1 Power-OFF contact, installed by the qualified contractor26 | FCR 28 www.stiebel-eltron.com

GUARANTEE | ENVIRONMENT AND RECYCLING

Guarantee The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only grant- ed if the subsidiary has issued its own terms of guarantee. No other guarantee will be granted. We shall not provide any guarantee for appliances acquired in countries where we have no subsidiary to sell our products. This will not aect warranties issued by any importers. Environment and recycling f Dispose of the appliances and materials after use in accor- dance with national regulations. f If a crossed-out waste bin is pictured on the ap- pliance, take the appliance to your local waste and recycling centre or nearest retail take-back point for reuse and recycling. This document is made of recyclable paper. f Dispose of the document at the end of the ap- pliance‘s life cycle in accordance with national regulations. GUARANTEEGUARANTEE