DE2427515 - Boiler SIEMENS - Free user manual and instructions

USER MANUAL DE2427515 SIEMENS

Installation instructions Install the continuous-flow heater as described in the illustrated section. Observe the instructions in the text.The illustrations can be found in the centre of the instruction manual. Safety information Risk of electric shock!Switch off the mains voltage supply immediately if a fault occurs.We do not accept liability for damage resulting from ■failure to heed these instructions.The continuous-flow heater may only be connected ■and put into operation by a qualified professional.Never open the appliance without disconnecting the ■power supply beforehand.The statutory regulations of the respective country, as ■well as those of the local electricity and water suppliers, must be adhered to.The continuous-flow heater is a Class ■ I appliance and must be connected to the protective earth.The appliance must be permanently connected to installed ■pipes. The conductor cross-section must comply with the installed appliance power.Caution ■ : Earthed water pipes may give the appearance of a connected protective earth.To guarantee compliance to relevant safety regulations, ■an all-pole separator must be fitted during installation. The contact opening must be at least 3 mm.The continuous-flow heater is only suitable for closed ■(pressurized) operation.The tap and outlet fittings must be approved for operation ■with closed (pressurized) continuous-flow heater systems.The continuous-flow heater can be operated with cold or ■pre-warmed water (for example, from a solar energy unit water supply). Observe the technical data and the special accessories for this purpose.The continuous-flow heater is only suitable for connection ■to DVGW (German Technical and Scientific Association for Gas and Water) approved plastic pipes. The continuous-flow heater may only be installed in a ■ frost-free room. Disconnect the electrical connection cable from the ■ supply and shut off the water supply before connect-ing the appliance!Connect the water supply and then connect the elec- ■trical supply.Only make the openings which are required for instal- ■lation on the rear of the appliance. If the appliance is reinstalled, the unused openings must be provided with watertight sealing.Do not touch electrically live parts after installation. ■ Installation

Unpacking/Removing the cover Unpack the appliance and check for transport-related ■ damage.Please dispose of the packaging, and if applicable, the old ■appliance in an environmentally-friendly manner. II. Preparations for installation Important: Only use the supplied installation set. The supplied water connection nozzles must be installed!Shut off water supply. The electrical connection (connec- ■tion cable) must be disconnected from the power supply. Unscrew the fuse or switch off the circuit breaker. III. Wall mounting The continuous-flow heater must be mounted on the ■ wall. Attach it if necessary on the lower adjustable screws.The distance to the wall is variable. You can compensate ■for any unevenness of the wall's surface.The grommet must tightly surround the connection cable. ■If it is damaged during mounting, the openings must be provided with watertight sealing. IV. Water connection The continuous-flow heater must be vented. The ■ warm water tap must be opened and the appliance must be flushed out thoroughly for 1 minute with at least 6 litres of water.

Electrical connection/Mounting The electrical supply terminal can be fitted at the top or ■bottom. The sheath of the connection cable must extend for at least 40 mm into the appliance.Set the power using the power selector switch before connecting the wires to the mains connection terminal:Set DE 1821515 and DE 5151821 to 18 kW (down) or ■21 kW (up).Set DE 2427515 or DE 5152427 to 24 kW (down) or ■27 kW (up).The set power must be marked on the ratings plate.Now screw the wires tightly into the mains connection ■terminal.9

Rated voltage [V] 400 400 Fuse protection [A] 32 40 Minimum conductor cross-section [mm

]4 6 Warm water flow at rated output with temperature increase from 12 °C to 38 °C [l/min]

12 °C to 60 °C [l/min]

Start-up flow [l/min] 2.6 2.6 Start-up flow pressure * [MPa (bar)] 0.025 (0.25) 0.025 (0.25) Application area in water specific electric resistance at 15 °C [Ωcm] ≥ 1 300 ≥ 1 300 Rated pressure [MPa (bar)] 1.0 (10.0) 1.0 (10.0) Maximum permissible supply temperature [°C] 55 55 Maximum mains impedance at connection point [Ω] ≤ 0.44 ≤ 0.244

• The pressure loss on the mixer must also be added Operation with prewarmed water (solar heated) The continuous-flow heater can only heat prewarmed water to a max. of 60 °C. If the cold water supply exceeds a tem- perature of 55 °C, the water will not be warmed any further. Important: The cold water supply temperature must not be higher than 55 °! If the cold water supply exceeds a temperature of 60 °C, a circuit breaker will trigger and shut the appliance off. There- fore, the residential plumbing must be equipped with a ther- mostatic premixer (e. g. special accessory BZ 45T20) that will limit the cold water supply temperature to a max. of 55 ° by appropriately mixing in cold water. VI. Startup/additional information The device is compliant to IEC 61000-3-12. First start-up Switch on the fuses.

Setting the temperature. ■ Starts rinsing: Open the warm water tap and allow water ■ to flow for at least 1 minute (flow-rate at least 6 litres per minute). Only then (for safety reasons) will the appliance begin to heat. Tip: Should the appliance not start because of a reduced flow-rate, remove the perlator, shower head or similar before start and repeat the process. Remove the flow-rate limiter (see Fig. A) with low water

pressure. Explain the operation of the continuous-flow heater to

If the continuous-flow heater does not have sufficient water flow due to low water line pressure in your do- mestic plumbing system, remove the flow-rate limiter.

Priority circuit for the combination with electrical storage heaters: For operation with a priority circuit, a special load shedding relay BZ 45L20 (special accessory) is re- quired. Other existing load shedding relays, with the exception of electronic load shedding relays, may malfunction.

The control electronics must be coded when operated with a load shedding relay.10

Operating instructions Please read the operating instructions carefully before you use the appliance! Safety information This appliance is intended for domestic use or for house- ■hold-based non-commercial applications. Household-based applications include, e.g. usage in employees catering facilities for shops, offices, agricultural and other commercial operations, as well as usage by guests of guest houses, small hotels and similar residential establishments.Risk of electric shock!Switch off the mains voltage supply immediately if a fault occurs.We do not accept liability for damage resulting from ■failure to heed these instructions.The continuous-flow heater may only be connected ■and put into operation by a qualified professional.Repairs may only be undertaken by a suitably qualified ■specialist to avoid potential sources of danger.The continuous-flow heater may only be installed in a ■frost-free room.Persons (including children) with diminished bodily, sen- ■sory or mental perception, or those who lack knowledge or experience should not operate the appliance, unless they are monitored or have received instruction concerning use of the appliance by persons responsible for their safety.Keep children away from the appliance. Please moni- ■tor children to ensure that they do not play with the appliance.The mixer and the warm water pipe may be hot. ■Please switch off all fuses immediately if a malfunction ■occurs. Immediately shut off the cold water supply to the appliance should it leak. The malfunction can only be re-paired by a specialist or an authorised service agent. Your new appliance The electronic continuous-flow heater “electronic comfort plus” is intended exclusively for heating water which flows through the appliance.The continuous-flow heater switches on and heats the water when the warm water tap is opened. It switches off as soon as the tap is closed. Operating the continuous-flow heater The default temperature for the water temperature after setting the first start-up or a power failure is 40 °C. Selecting shower temperature Select the required temperature with the rotary knob used to vary the desired temperature from 20 °C to 60 °C in steps of 0.5 °C.Info: The temperature shown in the display is the water tem-perature inside the appliance. The temperature of the water leaving the tap can vary from this due to heat losses in the pipework. Conserving energy and water Mixing in of cold water in the fitting requires unnecessary water and energy. You should therefore set the desired tem-perature directly on the continuous-flow heater and then open the water tap. Pre-warmed water The continuous-flow heater can be operated with pre-warmed water (for example from a solar energy unit). Special accessories Pipe kit ■ BZ 45U20: for use of the continuous-flow heater as an under sink appliancePriority switch (load shedding relay) ■ BZ 45L20: for operation with a priority circuit Mounting kit ■ BZ 45K23: for surface mount installation Thermostatic premixer ■ BZ 45T20: for installation in the domestic plumbing when using preheated water

The meaning of display indications Flashing display Risk of scalding! If the temperature display flashes, the temperature of the water leaving the tap is higher than the set temperature. The supply temperature from the domestic system is too high, e. g. water from a solar energy unit. The thermostatic premixer in the domestic supply must be set accordingly to lower temperatures. Error signals Sometimes e. g. E02 (or E03 to E14) appears in the display due to a very minor problem. Please try to eliminate the fault according to guidelines given in the chapter "A fault, what to do?". You will save yourself the cost of an unnecessary visit by customer service personnel. Using the appliance after switching off the water supply Switch off the appliance (unscrew the fuse in the house

electrical installation). Open the warm water tap and keep it open until the air ■ has been completely forced out of the water pipe. Switch the fuse back on again. ■ The appliance is now ready to operate. Start-up after power failure Open the warm water tap fully and allow a minimum wa- ■ ter flow of 6 litres/minute. Cleaning Only wipe off the appliance using a moist cloth. Do not ■ use acidic or abrasive cleaning materials. Do not use a steam cleaner. ■ Customer Service We ask you to always provide the E-No. and the FD-No. of your appliance when calling in a customer service engineer. You will find the numbers on the inner side of the fold up operating panel on the continuous-flow heater.12

A fault, what to do? If your appliance does not operate as required, it is often due to a very minor problem. Please check whether you can remedy the fault yourself by using the following guidelines. You will save yourself the costs of an unnecessary visit by customer service personnel. Fault Cause Solution Who Water flow-rate is too low. The filter in either the water tap or the showerhead is clogged. Remove the filter and either clean it or descale it. Customer The filter in the corner regulating valve is clogged. Get a servicing expert to clean the filter. Servicing expert The desired water temperature is set, but it is not reached. The continuous-flow heater is connected to a thermostatically- controlled water faucet. Set the temperature on the continu- ous-flow heater to “60 °C”. Customer The display is blank The fuse in the house electrical in- stallation has triggered/blown. Check the fuse in the house electri- cal installation. Customer The appliance's automatic circuit breaker has been tripped. Get the appliance's automatic circuit breaker checked by an electrician. Servicing expert The water is not warm. The fuse in the house electrical in- stallation has tripped/blown. Check the fuse in the house electri- cal installation. Customer From time to time, cold water flows out. The air sensor in the appliance de- tects air in the water and momen- tarily switches the heating element off. After a few seconds, the continu- ous-flow heater automatically goes back into operation. Continuous- flow heater automati- cally resolves problem The set temperature, for instance

41.0 °C flashes. The temperature

of the water leaving the tap is higher than the set temperature. The temperature of the water supplying the continuous-flow heater is higher than the set tem- perature (e. g. due to pre-warmed water supplied from a solar water heater). The thermostatic premixer in the domestic supply must be set ac- cordingly to lower temperatures. Customer Winter operation:The desired wa- ter temperature leaving the tap is no longer reached. The supply temperature has reduced. Reduce the water flow on the taps until the desired water temperature is reached. Customer E02 No thermostatic premixer available The supply temperature to the continuous-flow heater is higher than 55 °C (e. g. due to pre-warmed water supplied from a solar water heater). Install a thermostatic premixer in the domestic supply. Customer The supply temperature to the continuous-flow heater is higher than 55 °C (e. g. due to pre-warmed water supplied from a solar water heater). The thermostatic premixer in the domestic supply must be set ac- cordingly to lower temperatures. E03–E04 Temperature sensor defective Please contact customer service. Customer Service E05–E07 Electronic malfunction Please contact customer service. Customer Service E08 Frost damage The water supply sensor measures a temperature on ≤ 0 °C. The appliance is defective! Switch off the water supply immediately and disconnect the appliance from the electrical supply (also refer to the safety instructions) Please contact customer service. Customer/ Servicing expert13

Guarantee The guarantee conditions for this appliance are as defined by our representative in the country in which it is sold. Details regarding these conditions can be obtained from the dealer from whom the appliance was purchased. The bill of sale or receipt must be produced when making any claim un- der the terms of this guarantee. Subject to change without notice. Disposal This appliance is labelled in accordance with Euro- pean Directive 2012/19/EG concerning used elec- trical and electronic appliances (waste electrical and electronic equipment – WEEE). The guideline determines the framework for the return and recycling of used appliances as applica- ble throughout the EU. Please ask your specialist retailer about current disposal facilities. If the fault could not be eliminated, please call customer service. Fault Cause Solution Who E09 Temperature sensor/ electronics defective Please contact customer service. Customer Service E10–E11 Bubble detection triggers. Disconnect the appliance from the electrical supply. Open the warm water tap fully for venting purposes and flush out the appliance thoroughly for 1 minute. Switch the power back on again. Customer/ Servicing expert E12–E13 Electronic malfunction Please contact customer service. Customer Service14