Electrolux IH21 User's Manual
Contents
1. closed Because of the different inlet temperatures the hot water output varies depending on the season The following outlet flowrates for bath or shower water 40 C or washbasin sink water 55 C are attained at the inlet temperatures of 6 C 10 C and 14 C Cold Outlet temperature Outlet temperature water 40 C 55 C tempe rature 18 kW 21 kW 24 kW 18 kW 21 kW 24 kW C I min l min I min l min l min l min 6 7 6 8 8 10 1 53 6 1 7 6 10 11 5 10 73 ey 5 7 6 7 7 6 8 9 10 9 11 6 13 2 14 kt a ae 6 3 7 3 8 4 8 9 10 limited to this figure by the built in flow limiter Care and maintenance of the appliance Clean the plastic housing as necessary with a damp cloth and dilute soap solution Never use any abrasive scouring and solvent containing detergents The instantaneous water heater generally needs no maintenance Regular inspection of the appliance by a trained engineer will ensure its operational reliability and prolong its service life Scale deposits in the outlet of fittings reduce the water flowrate The air bubblers of the fittings or hand shower head must therefore be cleaned from time to time Important instructions for the installer General The instantaneous water heater is manufactured and tested in conformity with the valid IEC specifications and DIN standards The appliance complies with the Appliance Safety Act The indications given on the r2. 1 2 A Electrical connection 3 PE 380V Nominal output kW 18 21 24 Spec water resistance at Ohm cm gt 1100 15 C Switch on flow pressure Mpa 0 04 0 035 0 03 Switch on flowrate l min 3 Mains retroactive effect Free from any mains retroactive effect to DIN EN 60555 VDE 0838 VDEW Approval Maximum inlet C 25 C temperature Flowrate limitation l min 8 9 10 In addition to the flow pressures of the instantaneous water heater itself consideration must be given to the pressure losses in the household pipework Appliance function The fully electronically controlled ELECTROLUX IH instant water heater is a pressurised appliance for the supply of one or more tapping points and heats the water as the latter continuously flows through it A flowrate sensor switches on the heating at a flowrate of around 3 l min and off again at around 2 5 l min The microprocessor controlled electronic system automatically adapts the heating power with regard for the inlet temperature the temperature set on the temperature selector knob and the water flowrate The user thus has hot water available in an energy saving system giving the exact temperature required without any time limitation whatever The nominal operating pressure is 1 Mpa If this value is exceeded a pressure reducing valve should be provided in the household pipework A safety valve is not necessary The bare wire resistance heating system has a high efficiency Its low weight and e
3. Instantaneous IH 18 electronic basic Water Heater IH 21 electronic basic IH 24 electronic basic Instructions for installation and use lt Electrolux Contents Important instructions for the user General Operating the appliance Temperature preselection Hot water flowrate Care and maintenance of the appliance Important instructions for the installer General Appliance constitution Technical data Appliance function Safety temperature limiter Installing the appliance Dimensioned diagram Appliance installation Hood dismounting Wall mounting Water connection Concealed installation Installation versions Cleaning the strainer insert Flowrate limiter Electrical connection Mains connection Circuit diagram Temperature selector range limitation Hood assembly Using the appliance for the first time and checking Fault finding Fault indications Important for the expert Customer service V o Q o RAWWHWW ODOWMDONNOAUAH Important instructions for the user General Installation and startup should only ever be performed by an approved installer or authorised installation firm Before using the appliance please read through these instructions carefully The manufacturer cannot accept any liability for damage resulting from failure to follow these instructions Fittings and connecting pipes may get hot Therefore keep children well away Operating the appliance The ELECTROLUX IH electronic insta
4. al connection should only ever be made after the water is connected The appliance is only suitable for a fixed connection of 380 V 3 three phase current The appliance must be connected to the protective conductor Important note The wiring must be arranged so that the appliance can be de energised disconnected from the electricity supply before any intervention involving the fuses being unscrewed the automatic safety devices being switched off or similar measures being taken isolating gap width of at least 3mm Mains connection lead The connection cable must project from the wall over an insulated length of at least 20 mm Electrical connection terminal 3 factory prefitted Cut out cable inlet opening 1 Slide flexible inlet bush 2 over connection cable insert it through the back wall opening and screw fixing strap under connection terminal 4 Mains connection underneath alternative For this connection version transpose the A mains connection terminal 1 from top to bottom Note the terminal designation on the back wall and do not cross the connection leads to s the safety temperature limiter Carry out cable inlet opening 2 inlet bush 3 and bush fixing under the mains connection terminal as described above for mains connection Important Moisture protection is only guaranteed with the
5. ating plate the technical connection specifications of the electricity and water companies in the geographical area concerned and VDE 0100 and DIN 1988 must be observed when the appliance is being installed The specific resistance of the water at the installation site should not be less than 1100 Qcm This appliance complies with the following EC Directives the Low Voltage Directive 72 23 EEC of 19 02 1973 including C Amendment Directive 93 68 EEC the Electromagnetic Compatibility Directive 89 336 EEC of 03 05 1989 including Amendment Directive 92 31 EEC Appliance constitution 1 Back wall 2 Quick fastener for appliance mounting 3 Upper cable bushing 3a Lower cable bushing 4 Upper mains connection terminal factory prefitted 5 Flowrate sensor 6 Safety temperature and pressure limiter 7 Electronic module 8 Temperature selector knob 9 Flowrate limiter 10 Strainer insert 11 Cold water connection 12 Hot water connection 13 Thermostat 14 Heating block Technical data Model IH E IH E IH E 18 basis 21basis 24 basis Type unvented Nominal capacity l 0 4 Dimensions mm Width 226 Height 469 Depth 99 Weight kg 3 9 Nominal overpressure Mpa 1 Protection class to VDE l Protection type to VDE IP 25 splash water protected Test mark See rating plate Water connection G
6. ckup on the electronic system The rotational range of the temperature selector knob can be limited see page 15 Wall mounting Mark out wall plug holes with the mounting template supplied insert wall plugs and screw on fixing rail 1 Take out threaded pin 2 from the enclosed pack i and screw in Then prepare water connections mount appliance on threaded pin and retaining rail and fix by turning the quick fastener 3 one quarter revolution Water connection The water inlet temperature on the cold water connection should be max 25 C If plastic pipe systems are used as installation material the pipe manufacturer must expressly and unreservedly confirm the applicability and quality of his pipes for this application Concealed installation Insert connector with shutoff spindle 1 in cold water connection and double nipple 2 in hot water outlet using hemp packing The shutoff spindle must point downwards and the screw slot aligned in the flow direction of the water The shutoff unit must not be used for throttling The ELECTROLUX IH electronic can be operated with all pressure fittings suitable for instantaneous water heater Installation versions For fittings directly on the appliance the bushing openings pre embossed in the appliance hood must be cut out for the extension pipes of the fitting The supporting sheet 1 enclosed with the fitting fixes the extension pipes in position and seal
7. inlet bush fitted in position Circuit diagram Main connec tion terminal Safety temperature and pressure limiter LED 112 au o ll An Electronic system j Temperature selector range limitation Hood dismounting 00 000 es EJ 7 The maximum temperature able to be set can be limited to 40 C or 45 C Important Before dismantling set the knob to the minimum tempe rature of 30 C Detach the temperatur set point pickup 2 in the appliance hood Turn the setting dial 3 so that the printed set point coincides with the hood mark 1 Do not twist the selector axis and plate of the temperature set point pickup when reassembling Plug the connection lead of the temperature set point pickup into the electronic system suspend the appliance hood in the upper edge of the back wall and swivel it downwards until it audibly engages If necessary the hood can be suppli mentarily fixed with a screw next to the engagement lug Using the appliance for the first time and checking The unit must be installed and started up by an approved firm of installers which accepts liability for safety and proper function Before the appliance is energised connected to the electricity supply it should be thoroughly flushed with cold water and the tightness of the screwed joints checked After the in
8. n and use page 17and 18 m iii D LED 5l Lo 12 a5 5 D Fault indicator ALY i Customer service If your appliance has a fault please contact your customer service centre for advice A Electric appliances should only ever be repaired by a trained electrician since the user may be seriously endangered by improper repairs A list of the addresses of customer service centres is attached If your appliance requires service you will need to quote these numbers indicated onthe rating plate A Electrolux Prod No Serial No To save enquiries copy the data from the rating plate and keep them handy EHT Haustechnik GmbH Subject to change Gutenstetter StraBe 10 267789 K33895 8040 D 90449 N rnberg GERMANY
9. ntaneous water heater heats the water as the latter continuously flows through it When the hot water tap is opened the appliance switches on at a flowrate of around 3 I min When the hot water valve is closed or if the flowrate is reduced below 2 5 l min the appliance switches itself off again The appliance is suitable for household use and should only ever be used for heating of drinking water One or more tapping points can be supplied with hot water Temperature preselection The electronic system allows continuous temperature selection in the range from 30 C to 60 C Recommendation for energy saving operation 40 C for washbasin shower and bath knob tangibly engages 55 C for kitchen sink If this temperature is no longer needed the appliance should be reset to the 40 C energy saving level Wash basin Shower a u gt Bath basin 3 amp Kitchen sink When the appliance is operated with a thermostatic mixer tap the temperature setting on the instantaneous water heater must be around 8 C higher than on the thermostatic mixer tap 3 Hot water flowrate Up to the appliance s max power limit the instantaneous water heater supplies the set hot water temperature regardless of the water flowrate selected If the hot water temperature is not attained when the hot water valve is fully opened more water flows than can be heated by the appliance power In this case the hot water tap must be slightly
10. s the housing openings To ensure moisture protection the supporting sheet must be fitted Fitting must be vertically seated and centrally under the appliance Seal appliance connection to the wall where necessary with G 1 2 A blind plugs 2 fitting accessory If a cold water supply is made to the appliance the shutoff adapter 3 should be replaced by an adapter with a wood screw 4 for fixing the fitting in place The following tapping fittings are suitable D169 Special mixer tap with swivelling outlet D159 Special shower mixer tap D 149 Special bath mixer tap with change over tub shower Important After completion of the water installation the appliance should be thoroughly flushed with cold water open the hot water valve The strainer insert may possibly need cleaning afterwards Cleaning the strainer insert If the water flowrate is reduced by dirt from the cold water line the strainer insert should be cleaned as follows Shut off cold water on shutoff unit 1 Loosen cap nut 2 using a spanner Take out and clean strainer 3 Re assemble in reverse sequence Open cold water on shutoff unit 1 check tightness Flow rate limiter The flow rate limiter 2 is installed in the cold water connector 1 to allow a constant outlet temperature at high flow pressures of approx 40 C suitable for showering See table page 4 and 6 Electrical connection The electric
11. stantaneous water heater is energised connected to the electricity supply it should be inspected by a trained engineer to ensure that it is in proper working order For protection of the heating systems the system is arranged for a switch on delay of 5 25 s at initial startup and after the appliance has not been live for any length of time Important After any work carried out on the water supply unit the appliance should also be thoroughly flushed with cold water vented before being switched on again Only then should the appliance be reconnected to the electricity supply After initial startup the user should be familiarised with operation of the appliance and the instructions for installation and use handed over for safekeeping Fault finding important instructions for the trained engineer In the event of any fault a check should first be made to ascertain whether the fuse and line protection switch have tripped Fault Heating system does not switch on Hot water flowrate too low Safety temperature and pressure limiter has tripped Active fault indicator LED Appliance is not live Strainer insert is clogged Soiling or scaling of bubblers and shower heads Defective heating system Inadmissibly high cold water inlet tempera ture over 25 C Inadmissibly high outlet temperature over 70 C System fault see table on page 18 Remedy Check the voltage Clean s
12. trainer insert see page 12 Dismantle and clean the bubblers and showers heads Inspection and repair only by the trained engineer Appliance should not be operated with preheated water Inspection and repair only by the trained engineer Inspection and repair only by the trained engineer Fault indications No heat output Fault Idicator Possible faults pane EEDA LED 2 1 No display Flowrate sensor not plugged Appliance does defective not work L1 or L3 phase missing No display EE Setpoint temperature L2 phase missing not reachd 2 FLASHES FLASHES Setpoint generator not fitted long long Constant warm water temp 37 C 3 FLASHES FLASHES Electronics defective long short No heat output 4 FLASHES ON Supply temperature over 25 C long No heat output 5 OFF ON Water flow over 20l min The individual fault are indicated every 5 sec The indication mode starts afresh every 40 sec Important If the fault has been rectified the fault memory goes automati cally in Reset Function Sometimes with cold water flow phase ca 15 sec Important for the expert The electronic controls the safety function of the appliance When a fault is noticed the fault indicator LED blinks and the heating element is switched off After the fault has been recitified fault memory will be automatically cancelled Instructions for the fault finding see in Instructions for installatio
13. xtremely low water content also make it suitable for hard lime containing water qualities Safety temperature and pressure limiter In the event of a fault the inbuilt safety temperature limiter isolates the appliance from the mains supply on all contacts Before the appliance is switched back on a trained engineer must ascertain and eliminate the cause of the fault see page 17 Then carefully press in the contact rocker with a screwdriver until it audibly engages Important Don t block up the contact rocker Pressurepoint for screwdriver Important The safety temperature and pressure limiter should never be adapted or modified in any way Installing the appliance The appliance should only ever be installed or stored in frost free premises Dimensioned diagram 226 Quick fastener for appliance mounting Wall mounting Upper connection terminal factory set Lower connection terminal for electrical connection Upper cable bushing Lower cable bushing for electrical connection Cold water connection with strainer insert Hot water outlet oo APUUN Dep ll Appliance installation Carefully unpack and take out the enclosed pack Prepare the appliance for assembly Hood dismounting Press in the engagement lug on the underside of the appliance from above or from the front with a screwdriver and take off the hood Pull out the connection lead of the temperature set point pi
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