Ariston NEXT SFT 14 страница 33 Скачать руководство пользователя | Manualshive

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6. maintenance

3.

Disconnect the clips of the two pipe.

Isolate the cold water inlet and drain the applianc

C

D

E

4.

Remove the fan as detailed in paragraph. 6.1.4

5.

Release the 4 screws and dismount the heat
exchanger, burner and combustion hood.

F

6.

Remove the elctrodes and the overheat thermostat

7.

Remove the combustion hood from the heat

exchanger

G

H

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Содержание NEXT SFT 14

Страница 1: ... and Servicing instructions Important This appliance is a domestic gas fired hot water heater and is intended for domestic use only NEXT INSTANTANEOUS MULTIPOINT GAS WATER HEATER TYPE C NEXT SFT 14 Country of destination GB IE ...

Страница 2: ...instructions 4 2 1 Control panel 4 2 1 2 Display 4 2 2 Initial set up 2 3 Ignition procedure 5 2 4 Water temperature adjustment 5 2 5 Bath Function 5 2 6 Switchinf off procedure 6 2 7 Appliance shut off conditions 6 2 8 Anti freeze protection 6 2 9 Change gas type 7 2 10 Maintenance 7 ...

Страница 3: ...cted piping Explosions ﬁres or intoxication caused by gas leaking from disconnected piping Do not damage the power supply cable Electrocution from live uninsulated wires Do not leave anything on top of the appliance Personal injury caused by an object falling off the appliance as a result of vibrations Damage to the appliance or items underneath it caused by the object falling off as a result of v...

Страница 4: ...utton 3 4 Temperature Buttons Used to select hot water delivery temperature 5 Display 1 2 3 4 5 Water temperature indication C Signal error codes Water demand in progress Flame presence signal Fan active The display visualises the set temperature Reset procedure in progress Air pressure switch error see 5 1 ...

Страница 5: ...50 C by pressing button 4 again the temperature is increased in steps of 5 C up to a maximum of 65 C WARNING The factory set temperature is 42 C Pay attention when adjusting water temperature higher than 50 C burns may occur during the draw off phase 2 5 Bath Function The Bath function can be used to specify an amount of hot water to be dispensed at a selected temperature While the appliance is in...

Страница 6: ...lled where pipes are subjected to freezing it is recommended to empty it Proceed as indicated below Turn the outer electrical switch to the OFF position Close the gas isolation valve Close the cold water inlet isolation valve Open the DHW taps until both the appliance and pipes are completely emptied To ﬁll the appliance again open the cold water inlet isolation valve together with DHW taps until ...

Страница 7: ...7 2 user instructions ...

Страница 8: ...18 4 Commissioning 19 4 1 Gas supply installation 19 4 2 Checking electricity supply 19 4 3 Lighting the appliance 19 4 4 Setting the gas pressure 19 4 4 1 Supply pressure check 19 4 4 2 Checking the maximum pressure 19 4 4 3 Checking the minimum pressure 20 4 4 4 Completion 20 4 5 Gas settings table 20 4 6 Changing the type of gas 20 5 Appliance shut off conditions 21 5 1 Table summarising error ...

Страница 9: ...nd ionisation safety devices they have a modulating burner and are connected to the mains water supply they provide domestic hot water Their self contained combustion chambers with fans for the intake of external air and the extraction of combustion products allow them to operate totally independently from the room in which they are installed 10 ELECTRICAL POWER SUPPLY AND CONTROL Supplies the wat...

Страница 10: ...stances If you detect a smell of burning or smoke keep clear of the appliance disconnect it from the electricity supply open all windows and contact the technician Personal injury caused by burns smoke inhalation asphyxiation 3 2 Safety regulations Key to symbols Failure to comply with this warning implies the risk of personal injury in some circumstances even fatal Failure to comply with this war...

Страница 11: ...Nominal ﬂow rate ΔT 35ºC l min 10 2 D H W minium ﬂow rate l min 2 Water pressure maximum bar 6 Water pressure minimum bar 0 1 Flue fumes temperature at Maximum nominal heat input C 155 0 Flue fumes temperature at Minimum nominal heat input C 75 4 Ø Flue outlet Air intake 60 100 Dimensions Height Casing mm 563 Width Casing mm 350 Depth Casing mm 130 Power supply voltage frequency V Hz 230 50 Power ...

Страница 12: ...h 7 Overheat thermostat 8 Modulator Gas valve 9 Thermal fuse 10 Water ﬂow switch 11 Outgoing water temperature sensor 12 Inlet water temperature probe B C D 1 2 3 4 5 6 7 8 9 11 12 13 10 Legend 1 Heat exchanger 2 Overheat thermostat 3 Detection Electrode 4 Burner 5 Fan 6 Outgoing water temperature sensor 7 Air pressure switch 8 Safety valve 9 Cold water inlet ﬁlter 10 Water ﬂow switch 11 Inlet wat...

Страница 13: ...inimum clearances In order to allow easy access to the appliance for maintenance operations The appliance must be installed in accordance with the clearances stated below The following elements are supplied with the heater 1x 15mm gas inlet isolation tap complete with washer 1x 15mmx1 2 swivel nut 90 brass connector for the hot water outlet complete with washer 1x 15mm cold water inlet isolating v...

Страница 14: ...f Ireland in accordance with the following codes of practice I S 813 Domestic Gas Installations Avoid installing the appliance where the air inlet can be polluted by chemical products such as chlorine swimming pool area or ammonia hair dresser or alkaline products launderette 3 8 1 Flue Detailed information on ﬂue assembly can be found in Section 4 Fitting the Flue The appliance must be installed ...

Страница 15: ...trol using main electricity should be situated so that it cannot be touched by a person using the bath or shower in line with current electrical regulations Where the installation of the appliance will be in an unusual location special procedures may be necessary the current edition of BS 5546 should be consulted In the event that the appliance is to be installed in a timber framed building it sho...

Страница 16: ...r fully on Bleed any air from the water pipes by opening all the taps hot and cold Then turn off all the taps and check for water tightness Sealing the Gas Circuit IMPORTANT Test for tightness in accordance with current regulations 3 8 11 Connecting the Water Heater to the Electrical Mains The water heater is ﬁtted with an electrical supply cable for a 220 230V 50Hz mains supply It is to be connec...

Страница 17: ...t least 5mm must be between the ﬂue duct and structures or walls made of ﬂammable materials When replacing an old appliance the ﬂue must be changed Ensure the ﬂue is not blocked that the exhaust duct joints are ﬁtted correctly and do not leak products of combustion into the air inlet 3 9 1 Fitting the Coaxial Flue Ø 60 100 Horizontal Contents of ﬂue 3318643 2X silicone o ring 60mm 1X elbow 90º 2X ...

Страница 18: ... all burrs 9 Insert the ﬂue through the wall and slide the inner decorative collar on the ﬂue pipe 10 Connect the ﬂue to the elbow ensuring that the inner ﬂue engages into the elbow by 23mm NOTE WHEN ENGAGING THE FLUE PIPE ENSURE THE LIP SEALS REMAIN IN POSITION 11 Secure the appliance and the ﬂue pipe to the elbow using the clamps screws and seals 12 When installing the ﬂue ensure it is installed...

Страница 19: ...ptor NOTE Pay attention not to dislodge the lip seals in the vertical starter when engaging it onto the appliance and when inserting the vertical ﬂue kit Should extensions be required they are available in 1 metre lengths The vertical starter must always be connected directly to the appliance and the extensions installed between it and the vertical ﬂue kit In the event that an extension piece need...

Страница 20: ...ipe onto the test nipple 3 Open the gas isolation valve 4 Activate the appliance by opening a D H W tap 5 Press the SW3 button on the P C B the appliance is forced to maximum power The display will show CH CH and a value from 9 to 9 Default value 0 6 The burner pressure should correspond to the value shown in the Gas Settings table If it does not correspond adjust the potentiometer P2 To save the ...

Страница 21: ...nd minimum rate see 4 5 Gas settings table Note Permissible tolerance 5 10 4 4 4 Completion Once installation is complete commission the appliance as instucted in Section 4 page 19 Instruct the end user on the following How to switch off the appliance quickly and indicate the position of the electrical supply isolator Explain to the end user that if the appliance is not to be used for long periods...

Страница 22: ...ply Verify the electrical connection to the main unit Problem detected on the electronic card or fuse Replace the card or fuse A 1 A 1 No ﬂame detected Gas isolation valve closed Open the valve and follow the activation procedure Check the ignition electrode Check the detection electrode A 2 A 2 Overheating A temperature higher than 85 C has been detected Check the water pressure A 3 A 3 Air press...

Страница 23: ... fan 9 Remove and clean the burner injectors 10 Replace all components turn on the appliance and check correct operation 11 Check the gas inlet pressure and correct working pressures high and low ﬁre as described in Section 4 4 12 Check the gas rate 13 Check the water ﬂow rate 14 Check the combustion CO CO2 as described below 15 Advise the customer of the correct use of the appliance 16 Complete t...

Страница 24: ...d positioned Clean injectors and check correct size Burner for damage Heat exchanger clean ﬁns are clean and unblocked No combustion products are recirculating causing vitiation 6 1 1 Replacement of parts The life of individual components vary and they will need servicing or replacing as and when faults develop The fault ﬁnding sequence chart in Section 6 4 will help to locate which component is t...

Страница 25: ...s A 2 Remove the silicon pipe from the APS B 2 Disconnect the electrical connection from the main pcb C 3 Release the 3 screws and disconnect the APS from the bracket D 1 Release the 2 the two fan ﬁxing screws and remove the silicon pipe A 2 Disconnect the electrical connection from the main pcb B 2 Remove the fan C ...

Страница 26: ... Removing the ignitor 1 Disconnect the electrical connections A 2 Release the support bracket screw B 1 Remove the earth connection A 1 Release the 7 screws on the gas collector B 3 Release the screw also dismounts the igniter bracket C 4 Remove the gas collector D ...

Страница 27: ... C 6 1 7 Removing the ignition electrode 6 1 8 Removing the detection electrode 1 Release the 2 screws A 2 Remove the ignition electrode and disconnect the male female connector B 1 Release the 2 screws A 2 Remove the electrode and disconnect the electrical connection B ...

Страница 28: ...er temperature probe 1 Remove electrical connections A 2 Release the 2 screws and remove the overheat thermostat B 1 Remove the electrical connection A 2 Turn off the cold water isolation valve 3 Drain the appliance 4 Release the 2 screws and remove the hot water temperature probe B C ...

Страница 29: ...the cold water isolation valve and drain the appliance 3 Unscrew the 2 screws and remove the hot water temperature probe B 4 Remove the temperature probe C 1 Release the screw and disconnect the electrical connection A B 2 Turn off the cold water isolation valve and drain the appliance 3 Remove the clip from the pipe B 3 Remove the water ﬂow switch C ...

Страница 30: ...nance 6 1 4 Removing the main P C B 1 Release the 2 screws and dismount the PCB A 2 Remove all electrical connections from the PCB B 6 1 13 Removing the inlet water ﬁlter 1 Release the ﬁlter A 2 Remove the ﬁlter B ...

Страница 31: ... maintenance 6 1 15 Removing the display P C B 1 Unhook the control panel and release the ﬁxing screws A B 3 Release the 4 screws ﬁxing the cover of the main PCB and remove the other connection cables C D E ...

Страница 32: ...at exchanger 1 Remove the gas collector as detailed in 6 1 5 2 Release the screw release the silicone pipe from the fan assembly and remove the gas valve A B 3 Disconnect all electrical connections C 1 Remove electrical connections A 2 Remove the gas collector and the ignitor B ...

Страница 33: ...er inlet and drain the applianc C D E 4 Remove the fan as detailed in paragraph 6 1 4 5 Release the 4 screws and dismount the heat exchanger burner and combustion hood F 6 Remove the elctrodes and the overheat thermostat 7 Remove the combustion hood from the heat exchanger G H ...

Страница 34: ...34 6 maintenance 8 Release the screws to dismount the burner from the heat exchanger I J ...

Страница 35: ...ed on 3 The electrical supply is turned on 1 Check replace connection cable 2 Check replace the air pressure switch 3 Check replace the printed circuit board 1 Check replace connection cable 2 Check replace the printed circuit board 1 Check air pressure switch 2 Check venturi pipes 3 Check fan efficiency 1 Check ignition electrode cable 2 Check replace ignition electrode 3 Check replace the P C B ...

Страница 36: ...D H W noisy operation Repeated shutdowns check gas pressure check water flow rate check the temperature sensors check heat exchanger check exchanger faulty or lime scale deposits low system water pressure check the gas pressures faulty detection electrodes check gas settings check flame detection electric circuit check the temperature sensor ...

Страница 37: ...5158036 211 Water Flow Sensor 65158445 303 Ignitor 65158405 307 Detection Electrode 65158248 308 Ignition Electrode 65158357 401 Gas Valve 6518231 501 Air Pressure Switch 10259000 503 Fan Assembly 65158259 601 PCB Main 65158542 603 PCB Display 65158540 604 Cable Display Panel 65158537 ...

Страница 38: ...38 6 maintenance ...

Страница 39: ...39 6 maintenance ...

Страница 40: ...as not been installed correctly and understand that any manufacturer s guarantee has been withdrawn On the 12 month anniversary of the appliance installation you must have it serviced to continue any guarantee offered into the following year Failure to do so will invalidate your guarantee and should an ARISTON engineer be required to attend and no proof of service documentation is made available t...

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