DE27401 - Boiler SIEMENS - Free user manual and instructions

USER MANUAL DE27401 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.Only connect the continuous-flow heater to a cold water ■line.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. VI. Startup/additional information First start-upSwitch 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 ■the user.9

• The pressure loss on the mixer must also be added. 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. Special accessories Pipe kit ■ BZ 45U20: for use of the continuous-flow heater as an under sink appliance Priority switch (load shedding relay) ■ BZ 45L20: for operation with a priority circuitMounting kit ■ BZ 45K23: for surface mount installation

Status display on the applianceLED Appliance statusOff OffLights up ReadySlow flash (1/s) Appliance is heatingFast flash (4/s) Desired water temperature is not reached (water flow too high for appliance rating). The filter upstream from the check valve in the cold water supply inlet is clogged.Remove the filter and either clean it or descale it. See Figure E 1–3.

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 electronically regulated flow-through heater warms the water while it flows through the unit. How to operate the continuous-flow heater The warm water temperature can be continuously adjusted on the electronically regulated flow-through heater:WashbasinShowerWith the use of a thermostat battery, the following settings are recommended for high temperatures or large quantities of water, for example:Dish washingCleaningTurn on the hot-water tap. ■The continuous-flow heater switches on and heats the water when the hot-water tap is turned on. It switches off again when the tap is turned off. Changing the supply water temperature correspondingly changes the outgoing water temperature. Increasing the water temperature If a higher temperature for a completely opened warm water tap is not achieved, more water flows than the flow-through heater can warm as a result its performance capabilities. In this case, the warm water tap must be closed somewhat. Decreasing the water temperature Startup after a water cutoff Switch off the appliance (unscrew the fuse in the house ■electrical installation).Turn on the hot-water tap until the air is purged from ■the pipe. Switch the fuse back on again. ■The appliance is ready for operation. Saving energy Set the desired warm water temperature directly on ■the flow-through heater.Mixing with cold water at the armature for water that is too hot consumes unnecessarily water and energy.At approx. 40 °C (temperature selection position ) the unit operates most economically.11

Cleaning Simply wipe the appliance with a damp cloth. Do not use intensive or abrasive cleaning agents. 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. 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 filter upstream from the check valve in the cold water supply inlet is clogged. Remove the filter and either clean it or descale it. Servicing expert The desired water temperature is not reached. The continuous-flow heater is connected to a thermostatically- controlled water tap. Set the temperature on the continu- ous-flow heater to “max”. Customer The power limit has been reached. Water flow-rate is too high and/or the cold water supply temperature is too low. Reduce the flow-rate at the water tap supply. Customer By a qualified professional: use the angle valve to regulate the flow-rate. Check the flow-rate limiter or re- place it with a smaller one. Servicing expert The water is not sufficiently warm. The fuse in the house electrical in- stallation has tripped/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 cir- cuit breaker checked by an electri- cian. Check the permissible supply temperature. Servicing expert The power limit has been reached. Water flow-rate is too high and/or the cold water supply temperature is too low. By a qualified professional: use the angle valve to regulate the flow-rate. Check the flow-rate limiter or re- place it with a smaller one. Servicing expert 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. Continu- ous-flow heater au- tomatically resolves problem12

Fault Cause Solution Who Winter operation: The desired water 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 The appliance does not start (heat), no water flows. Power failure or initial start-up. 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. Should the appliance not start because of a reduced flow-rate, remove the perlator, shower head or similar before start and repeat the process. Customer If the fault could not be eliminated, please call customer service. Disposal This appliance is labelled in accordance with Euro- pean Directive 2002/96/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. 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.13 en14