Ariston Clas 24 FF Page 73 Installation And Servicing Instructions Download

Page: 73 / 76

user’ manual

Stand by

To switch oﬀ the boiler press the ON/OFF

Switch oﬀ the boiler completely by switching the external electri-

cal switch to the OFF position; the display will switch oﬀ .

Close the gas tap.

COMFORT function (COMBI)

To activate the comfort mode it is necessary to press the comfort

button

, this will be indicatd by a yellow light

. The comfort

mode has priority over any other heating request.

There are two settings for the comfort mode (they can be adjusted

in the parameters menu):

1. As soon as DHW is drawn, the secondary heat exchanger is kept

warm for 30 mins.

2. As soon as DHW is drawn, the secondary heat exchanger is kept

warm permanently.

This function may be enabled by pressing the COMFORT button.

Switching off the heating

To switch oﬀ the heating mode turn the button

in the position”O”.

The boiler switches in sanitary mode only and indicating the set

temperature.

Summary of Contents for Clas 24 FF

Page 1: ...8A6H HNHI B 8A6H chiVaaVi dc VcY HZgk X c chigjXi dch L6AA JC 6H 7D A G INE 8 A 6K I H CHIGJ8I DCH L I I C9 JH G 9B7I 9B7I 9B7I IOIJ C 9B7I IOIJ C 8 C L 8 C L 8 C L 8 C L ...

Page 2: ...uto function 32 Boiler protection devices 33 Safety shut oﬀ 33 Shutdown 33 Malfunction warning 33 Table summarising error codes 33 Anti frost device 34 Combustion Analysis 34 Product of combustion Discharge Monitoring 34 Flue test mode 34 settings adjustment problem identification menus 35 Menu 2 Boiler parameter 36 Menu 3 Boiler with storage and boiler with solar kit 37 Menu 4 Zone 1 parameter 38...

Page 3: ...asbestos or other hazardous materials have been used in the fabrication of this product Before connecting the appliance check that the information shown on the data plate and the table in section 7 comply with the electric water and gas mains of the property You will ﬁnd the data plate on the reverse of the control panel The gas with which this appliance operates is also shown on the label at the ...

Page 4: ...nob 6 Programming key 7 MENU OK button 8 ESC button 9 Programming key 1 2 3 4 5 6 7 16 15 14 13 12 11 9 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 2 2 23 24 9 6 12 I 10 Domestic Hot Water adjustment knob COMBI models 11 Time clock optional 12 ON OFF Switch 13 COMFORT Function L E D COMBI models Heating only L E D SYSTEM models 14 Green led auto function activate 15 AUTO button to acti...

Page 5: ... valve 3 bar 13 Secondary heat exchanger 14 Drain valve 15 D H W Flow switch 16 Circulation Pump with air release valve 17 Water pressure sensor 18 Diverter valve 19 Detection Electrode 20 Combustion Chamber Insulation Panel 21 Combustion Chamber 22 Expansion vessel 23 Fan 24 Combustion Analysis Test Point 1 2 3 5 6 7 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 11 8 4 1 2 3 5 6 7 9 10 12 14 16 17 ...

Page 6: ...discharge head Pa 100 104 Nox class class 3 3 Flue fumes temperature G20 C 98 114 CO2 content2 G20 6 6 6 4 CO content 0 02 ppm 40 92 O2 content2 G20 8 7 8 9 Max Discharge of Products of Combustion G20 kg h 97 67 5 Excess air 62 8 74 HEATING CIRCUIT Load losses water side max T 20 C mbar 200 200 Residual head for the system bar 0 25 0 25 Expansion vessel pre charged pressure bar 1 1 Maximum central...

Page 7: ...0 C 0 4 0 3 Heat loss through the ﬂue when burner on 5 0 6 1 Heat loss through the ﬂue when burner oﬀ 0 4 0 4 EMISSIONS IN C H Residual discharge head mbar 100 104 Nox class class 3 3 Flue fumes temperature G20 C 98 114 CO2 content2 G20 6 6 6 4 CO content 0 02 ppm 40 92 O2 content2 G20 8 7 8 9 Max Discharge of Products of Combustion G20 Kg h 97 67 5 Excess air 62 8 74 HEATING CIRCUIT Load losses w...

Page 8: ...hot water boilers of rated input not exceeding 60kW BS 6891 1989 Installation of low pressure gas pipe up to 28mm BS 7671 2001 IEE wiring regulations BS 4814 1990 Specification for expansion vessels BS 5482 1994 Installation of L P G and in the Republic of Ireland in accordance with the following Codes of Practice I S 813 Domestic Gas Installations Siting the Appliance The appliance may be install...

Page 9: ...Gas Inlet 15mm D Domestic Cold Water Inlet 15mm nut olive E Central Heating Return 22mm nut olive Clearances In order to allow access to the interior of the boiler for maintenance purposes the boiler must be installed in compliance with the minimum clearances indicated in Fig 6 A 450 mm B 60 mm C 300 mm D 450 mm E 350 mm D B B D B B A C A E Fig 5 CLAS 24 30 FF CLAS SYSTEM 21 28 FF Fig 6 CLAS SYSTE...

Page 10: ... is appropriate for the power absorbed by the boiler The boiler operates with alternating current as indicated in the Technical Information tables on pages 6 and 7 where the maximum absorbed power is also indicated Make sure that the connections for the neutral and live wires correspond to the indications in the diagram The appliance electrical connections are situated on the reverse of the contro...

Page 11: ...ble pipes should have a gradient to ensure air is carried naturally to air release points and water ﬂows naturally to drain taps The appliance has a built in automatic air release valve however it should be ensured as far as possible that the appliance heat exchanger is not a natural c o l l e c t i n g point for air Except where providing useful heat pipes should be insulated to prevent heat loss...

Page 12: ...mp inlet 0 50 100 150 200 250 300 350 400 450 500 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 mbar l h Mains Water Feed Central Heating A method for initially ﬁlling the heating system is supplied with the connection kit The ﬁlling loop is connected between the cold water inlet and the central heating ﬂow connections and incorporates a non return valve To operate the ﬁlling loop it i...

Page 13: ...r above a ﬂat roof to which people have access then a suitable terminal guard must be ﬁtted When ordering a terminal guard quote the appliance model number The minimum acceptable spacing from the terminal to obstructions and ventilation openings are speciﬁed in Fig 11 TERMINAL POSITION mm A Directly above or below an openable window or other opening 300 B Below gutters solid pipes or drain pipes 7...

Page 14: ...external wall to the face of the ﬂue elbow X Fig 12 add 23 mm to this measurement you now have the total length of ﬂue required including the terminal this ﬁgure must now be subtracted from 860mm you now have the total amount to be cut from the plain end of the ﬂue Cut the ﬂue to the required length ensuring that the distance between the inner and the outer ﬂue is maintained Fig 2 8 e g X 508mm 22...

Page 15: ...tly into the inner ﬂue once veriﬁed it is sim ply necessary to push them together no clamps are necessary to secure the ﬂue components Before proceeding to ﬁt the ﬂue ensure that the maximum ﬂue length has not been exceeded See the tables on Page 20 and that all elbows and bends have been taken into consideration for each additional 90o elbow 1 metre must be subtracted from the total ﬂue length an...

Page 16: ...ion of the ﬂue hole in the ceiling and or roof see Fig 20 for distance from wall to the centre of the ﬂue Cut a 125mm diameter hole through the ceiling and or roof and ﬁt the ﬂashing plate to the roof Should it be necessary to cut the ﬂue DO NOT cut the outer white air inlet tube cut the aluminium exhaust ﬂue 6mm longer than the outer white air tube when used at minimum length DO NOT cut more that...

Page 17: ...se to the boiler as possible condense will then be suitably disposed of Where the ﬂue runs through cold spots i e loft areas condense is likely to be formed therefore a fall back to the boiler and a trap is required Always ensure that the ﬂue is adequately supported avoiding low points MTS supply suitable clamps as Part No 705778 To utilise the air intake it is necessary to Remove the blank intake...

Page 18: ...metres 31kW for runs with the terminals under diﬀerent atmospheric conditions Type 5 the exhaust terminal must extend 0 5 metres above the ridge of the roof this is not obligatory if the exhaust and air intake pipes are located on the same side of the building For Type 5 also the maximum permissible combined length is 40 metres The maximum length is reached by combining the total lengths of both t...

Page 19: ...19 installation Note Drawings are indicative of flueing options only EXHAUST AIR INTAKE AIR INTAKE AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST Fig 26 Fig 27 ...

Page 20: ...IN MAX MIN MAX MIN MAX MIN MAX Coaxial Systems C12 C32 C42 0 5 0 75 0 75 4 0 5 0 75 0 75 4 ø 60 100 B32 0 5 0 75 0 75 4 0 5 0 75 0 75 4 C12 C32 C42 0 5 3 3 11 0 5 3 3 11 ø 80 125 B32 0 5 3 3 11 0 5 3 3 11 Twin Pipe Systems C12 C32 C42 S1 S2 S1 S2 ø 80 80 0 5 0 5 15 15 15 15 26 26 0 5 0 5 11 11 11 11 25 25 C52 C82 1 S2 1 S2 ø 80 80 1 0 5 1 34 1 34 1 53 1 0 5 1 27 1 27 1 51 B22 0 5 35 35 54 0 5 28 2...

Page 21: ...ler this is indicated on the appliance data plate Check that the section of the wires is suitable and is not less 1 5 mm2 The appliance must be connected to an eﬃecient earthing system if it is to operate correctly The power supply cable must be connected to a 230V 50Hz network where the L N poles and the earth connection are all respected Important In the event that the power supply cable must be...

Page 22: ...d one for connection to an open vented cylinder In both cases the boiler connection is shown as TA1 When connecting the boiler to an external cylinder do not run 240V cables and the cables for the room terminal together use separate cables to prevent induced voltage on the low voltage switching circuit NOTE THE USE OF A Y PLAN SYSTEM IS NOT POSSIBLE WITH THE CLAS HE SYSTEM BOILER DUE TO THE LOW VO...

Page 23: ...23 installation WIRING DIAGRAM FOR CONNECTION TO AN OPEN VENTED CYLINDER ...

Page 24: ...24 installation WIRING DIAGRAM FOR CONNECTION TO AN MTS UNVENTED CYLINDER ...

Page 25: ...r Motorised diverter valve L N FAN GAS VALVE SPARK GENERQTOR EARTH FLAME W O L F PUMP ZONE1 FILLING PUMP SPEED 1 1 TA2 ESUF 1 2 3 4 1 2 3 4 5 6 6 1 1 2 3 4 REMOTE CONTROL 8 1 CN04 CN07 CN22 12 11 10 9 8 7 6 5 4 3 2 1 11 10 9 8 7 6 5 4 3 2 1 2 1 8 7 6 5 4 3 2 1 CN04 BUS Connection Gas valve modulator 11 10 9 8 7 6 5 4 3 2 1 CN22 12 11 10 9 8 7 6 5 4 3 2 1 Fan Modulating Pump C H Flow Temperature Pr...

Page 26: ...ensor Optional TA2 TA1 SE Spark Generator Fan Modulating Pump Detection Electrode Gas valve modulator C H Flow Temperature Probe C H Return Temperature Probe Overheat Thermostat Air Pressure Switch GAS VALVE SPARK GENERQTOR BUS Connection CN04 CN04 CN07 CN22 CN22 12 11 10 9 8 7 6 5 4 3 2 1 12 11 10 9 8 7 6 5 4 3 2 1 11 10 9 8 7 6 5 4 3 2 1 11 10 9 8 7 6 5 4 3 2 1 2 1 8 7 6 5 4 3 2 1 Fig 33 ...

Page 27: ... valve 13 Central Heating Filter 14 D H W Flow Switch 15 Diverter valve 16 Pressure Gauge 17 Modulating Circulation Pump with air release valve 18 Detection electrode 19 Expansion vessel 20 Central Heating Return Temperature Probe 21 Air Pressure Switch A B C D E 1 3 2 4 9 11 10 12 13 14 15 16 17 19 18 20 21 8 5 7 6 A C E 1 3 2 4 11 9 12 16 13 17 19 18 20 21 5 7 6 Fig 34 Fig 35 A Central Heating F...

Page 28: ...m and run it until the temperature has reached the boiler operating temperature The system must then be immediately ﬂushed through The ﬂushing procedure must be in line with BS 7593 1992 code of practice for treatment of water in domestic hot water central heating systems During this operation we highly recommend the use of a central heating ﬂushing detergent Fernox Superﬂoc or equivalent whose fu...

Page 29: ... designed If it does not correspond remove the protective cover on the gas valve and tighten or loosen the adjustment screw 3 ﬁg c to adjust 4 When the check is over tighten screw 2 and make sure it is securely in place 5 Replace the cover protecting the modulator 6 Reconnect the compensation tube 7 The ﬂue sweep function is automatically deactivated after 10 minutes or when the button is pressed ...

Page 30: ...sert the pressure gauge connection pipe into the pipe tap 2 Disconnect the air chamber compensation tube 3 Switch the boiler on at maximum heating power enabling the chimney sweep function press the key for 5 seconds the display shows t The supply pressure should correspond to the value shown in the Gas Settings table according to the type of gas for which the boiler is designed If it does not cor...

Page 31: ... Menu 2 sub menu 3 parameter 1 46 66 66 49 66 71 Ignition delay Menu 2 sub menu 3 parameter 5 automatic automatic Main Burner jets nr 13 13 Main Burner jets Ø 1 25 0 75 0 75 1 32 0 8 0 8 Max min consumption 15 C 1013 mbar G N m3 h GPL Kg h maximum D H W 2 86 2 13 2 10 3 31 2 47 2 43 maximum heating absolute 2 73 2 03 2 00 3 17 2 37 2 33 minimum 1 16 0 87 0 85 1 38 1 03 1 01 Heating Power Adjustmen...

Page 32: ...Activation of temperature adjustment using sensors Select 03 outdoor sensor only 4 22 Temperature adjustment curve selection see page 39 Select the relevant curve according to the type of system installation heat insulation used in the building etc 4 23 Perform a parallel curve shift if necessary increasing or decreasing the set point temperature this may also be modiﬁed by the user using the heat...

Page 33: ...st ﬁgure of the error code e g 1 01 indicates within which operational assembly the error occurred 1 Primary Circuit 2 Domestic Hot Water Circuit 3 Internal Electronic Part 4 External Electronic Part 5 Ignition and Detection 6 Air inlet ﬂue gas outlet 7 Multizone Malfunction warning This warning is shown by the display in the following format 5 P3 Flame cut oﬀ the ﬁrst ﬁgure indicating the operati...

Page 34: ...e intakes it is necessary to unscrew the front screw and remove the metal plate with sealing gasket It is possible to activate the ﬂue test mode by pressing and holding the button for 10 seconds The boiler will return to normal operation after 10 minutes The boiler can be returned to normal operation sooner by switching the boiler oﬀ and on again When you have ﬁnished reposition the metal plate co...

Page 35: ...to each individual menu are listed in the following pages The various parameters can be accessed and modiﬁed using th MENU OK button and the buttons see ﬁg below The code of the menus and of each individual parameter will be shown on the display The information relating to the menus and the individual parameters are indicated on the display To access Menu 2 open the cover and proceed as follows 1 ...

Page 36: ...substitution P C B see Gas Settings pages 29 and 30 2 3 1 Maximum Central Heating power Adjustable heating from 0 to 99 see Gas Settings pages 29 and 30 2 3 2 NOT PRESENT 2 3 3 NOT PRESENT 2 3 4 NOT PRESENT 2 3 5 Anti cycling time mode 0 Manual 1 automatic 0 see Gas Settings pages 29 and 30 2 3 6 Anti cycling time If 235 0 from0to7 minutes 3 2 3 7 Central Heating pump overrun from0to15 minutes oCO...

Page 37: ...f the appliance can be used to increase the comfort level of the user when drawing hot water This function keeps the secondary exchanger hot during periods of boiler inactivity this increases the initial heat status of the water drawn as the water is delivered at a higher temperature Press the MENU OK button to enable the modiﬁcation When the function is enabled the text COMFORT LED is illuminated...

Page 38: ... code 234 and press MENU OK 4 2 SET ZONE 1 4 2 0 Zone 1 Temperature range DO NOT MODIFY 0 Low Temperature 1 High Temperature ONLY FOR SERVICE Active only with MGZ MCM Kit 4 2 1 Select Type of Thermoregulation 0 Fixed Flow Temperature 1 Basic Thermoregulation 2 Room Temperature only 3 Outdoor Temperature only 4 Room Outdoor Temperature 1 To enabled thermoregulation press Auto button The display sho...

Page 39: ...0 OFF 1 ON Active only with MGZ MCM Kit 5 ZONE 2 PARAMETER 5 0 ZONE 2 SET TEMPERATURE 5 0 0 Set DayTemperature Zona 2 from16to30 C 19 only active when the BUS device is connected 5 0 1 Set NightTemperature Zona 2 from16to30 C 16 5 0 2 Fix temperature central heating from35to85 C 70 To set only with Fixed Flow Temperaure of Thermoregulation see 521 5 1 Service code 222 Press to select code 234 and ...

Page 40: ...ure Zone 2 only active with MGZ MCM Kit 5 3 3 SetTemperature Zone 2 only active when the BUS device is connected 5 3 4 Heat Request Zone 2 0 OFF 1 ON 5 3 4 Pump Status Zone 2 0 OFF 1 ON only active with MGZ MCM Kit 5 4 ZONE2 DEVICES 5 4 0 Operation ModeTest 0 OFF 1 ON 2 Manual only active with MGZ MCM Kit 5 4 1 Valve control 0 OFF 1 Open 2 Closed 5 4 2 Pump control 0 OFF 1 ON 5 5 MULTIZONE 5 5 0 H...

Page 41: ...t Temp Time 8 5 SERVICE 8 5 4 P C B Hardware version 8 5 5 P C B Software version 8 5 6 P C B BUS Software version 8 6 STATISTICS 8 6 0 Hours Burner On Central Heating h 10 8 6 1 Hours Burner On Domestic Hot Water h 10 8 6 2 Number of Flame Faults nr 10 8 6 3 Number of ignition Cycles nr 10 8 6 4 NOT PRESENT 8 6 5 Heat request Duration 8 7 NOT ACTIVE 8 8 ERROR HISTORY 8 8 0 Last 10 errors from E00...

Page 42: ...seal and that the system for the expulsion of fumes suction of comburent air is operating correctly Draining procedures The heating system must be drained using the following procedure Switch oﬀ the boiler make sure the external bipolar switch is in the OFF position and shut oﬀ the gas valve Loosen the automatic air relief valve Open the system discharge valve and collect the escaping water in a c...

Page 43: ...ernal controls have been disconnected reconnect and test 10 Reﬁt boiler casing 11 Complete the Benchmark Commisssioning Checklist on page 46 and any other necessary documentation Instructing The End User 1 Hand over the copy of the End User Instructions supplied with the appliance together with these instructions and explain how to use the timeclock and room thermostat if ﬁtted 2 Show the End User...

Page 44: ...uide GENERAL ACCESS Tools Time 3 min 1 Unclip the cover to remove Remove the two screws Remove the front panel 2 Lower the electrical box Remove the combustion chamber front panel by releasing the clips General access ...

Page 45: ...ime 4 min 1 Remove the front panel as above and pivot the electrical box Unlock the four clamps to gain access to the control box 2 2 FUSE FUSE Tools Time 5 min 1 Open the control box as above Remove the fuse Electrical Unit Control Box access Fuse ...

Page 46: ...ors Unscrew the two screws and remove the PCB 2 4 DISPLAY PCB DISPLAY PCB Tools Time 7 min 1 Unclip the cover to remove Lower the door and remove the two control knobs Unscrew the four screws and pull the assembly towards you 2 Disconnect the electrical plug connectors unlock the four clamps and remove the PCB Main PCB Display PCB ...

Page 47: ...filter 7 Not applicable in UK 8 Non return valve 9 Non return valve assembly 10 DHW flow switch assembly 11 Central heating return 12 Cold water inlet DHW 13 Central heating drain valve LEGEND 1 Auto air vent 2 Primary water pressure switch 3 Pump 4 Central heating filter 5 Central heating return 6 Central heating drain valve CLAS 24 30 FF CLAS SYSTEM 21 28 FF Right hand hydraulic block assembly ...

Page 48: ...r from the diverter valve body 2 Drain the boiler see 3 3 Remove the clip and lift the diverter valve from the assembly When reassembling ensure the diverter valve is aligned correctly 3 3 DRAINING DRAINING Tools Time 5 min 1 Turn the drain valve anti clockwise to open and drain the water from the boiler CLAS 24 30 FF 3 way valve Draining ...

Page 49: ... 3 3 Remove the clip and lift the AAV from the assembly 3 5 PRIMARY WATER PRESSURE SENSOR PRIMARY WATER PRESSURE SENSOR Tools Time 5 min 1 Drain boiler see 3 3 Remove the fixing clip unplug the electrical connector and lift the sensor from the assembly Automatic air vent Primary water pressur sensor ...

Page 50: ... see 3 3 Remove the clip and the two screws Disconnect the pipe and then move the pump to the right disengage Remove the pump 2 Remove the sensor see 3 5 Remove the AAV see 3 4 3 7 CH FILTER CH FILTER Tools Time 5 min 1 Remove the clip Remove the filter Pump CH Filter ...

Page 51: ...FLOW SWITCH ASSEMBLY DHW FLOW SWITCH ASSEMBLY Tools Time 5 min 1 Drain boiler see 3 3 Remove the clip and pull the flow switch assembly towards you Twist the flow switch assembly to disengage CLAS 24 30 FF DHW Flow switch assembly ...

Page 52: ...ure sensor 4 Safety valve 2 Left hand hydraulic block 5 Central heating flow 3 By pass assembly 6 Domestic hot water outlet 1 Left hand hydraulic block 2 Safety valve By pass assembly 3 Central heating flow CLAS 24 30 FF CLAS SYSTEM 21 28 FF Left hand hydraulic block assembly ...

Page 53: ...W circuit Unplug the DHW sensor and remove the clip Sensor without wire and clip Lift the sensor from the assembly 3 11 SAFETY VALVE SAFETY VALVE Tools Time 5 min 1 Drain boiler see 3 3 Disconnect the discharge pipe Remove the first clip on the left and pull the safety valve towards you CLAS 24 30 FF D H W Temperature sensor Safety valve ...

Page 54: ... second clip and pull the assembly towards you Push on the by pass to disengage it 3 13 SECONDARY HEAT EXCHANGER SECONDARY HEAT EXCHANGER Tools Time 10 min 1 Drain primary and domestic hot water circuits Remove the two screws and remove the heat exchanger CLAS 24 30 FF By pass assembly Secondary heat exchanger ...

Page 55: ... the electrical connectors Remove the clips and the temperature sensor or overheat thermostat together IMPORTANT Do not use conducting paste for the contact sensors because it will alter the resistance value TEMPERATURE C RESISTANCE kOmh 0 27 10 17 20 12 25 10 30 8 40 5 50 4 60 3 70 2 80 1 5 Temperature sensors overheat thermostat ...

Page 56: ...rain boiler see 3 3 Remove the two screws and pivot the combustion chamber panel Remove the four pipes clips and the overheat sensor Remove the two pipes to free the heat exchanger 2 Remove the two screws at the top of the exchanger Pull the heat exchanger towards you Main heat exchanger ...

Page 57: ...57 maintenance guide 4 BURNER UNIT Burner unit ...

Page 58: ...e spark generator and the earth from the control box 2 Pull the spark generator towards you after removing the screw Unplug the ignition electrode from the spark generator 4 2 ELECTRODES ASSEMBLY ELECTRODES Tools Time 5 min 1 Remove the combustion chamber front panel and unplug the electrodes Remove the screw and pull the electrodes assembly towards you Spark generator Electrodes assembly ...

Page 59: ... screws from the burner Pull the assembly towards you 2 Remove the four screws to free the manifold The burner 4 4 MANIFOLD MANIFOLD Tools Time 10 min 1 Isolate the gas supply Disconnect the electrodes as above Remove the compensation flexible pipe and the two screws from the gas elbow Remove the four screws and pull the assembly towards you Pull down the gas elbow to free the manifold Burner Mani...

Page 60: ...ch support and the condensate collector 2 4 6 AIR PRESSURE SWITCH Remove the four screws and pull the fan towards you AIR PRESSURE SWITCH Tools Time 4 min 1 Disengage the air pressure switch by unlock the four clamps and pivot it towards you Disconnect the air pressure switch wires Fan Air pressure switch ...

Page 61: ...e spark generator and the compensation flexible pipe Remove the gas valve wires Remove the screws to free the gas valve assembly 2 Gas valve assembly Remove the three screws to free the gas inlet pipe Remove the four screws to free the gas part between the gas valve and the manifold Gas valve ...

Page 62: ...nce Interval Annually How Check air pressure is at 1 bar System drained Ignition detection electrodes Maintenance Interval Annually How Visual inspection Clean as necessary Distance from the burner Ionisation current more than 1 A Burner Maintenance Interval Annually How Visual inspection Clean as necessary Fan Maintenance Interval Annually How Visual inspection Clean as necessary Primary Heat exc...

Page 63: ...C T I W S E R U S S E R P R I A 1 6 2 4 0 1 5 6 L E S S E V N O I S N A P X E 7 2 3 0 0 8 6 6 2 1 3 1 6 E V L A V F E I L E R E R U S S E R P 7 3 5 0576 TEMPERATURE PROBE CLIP 990686 3 3 3 4 0 1 5 6 R E G N A H C X E Y R A D N O C E S 9 8 5 0 0 3 8 4 2 0 3 1 6 E V L A V Y A W E E R H T R O T O M 1 0 6 0 4 1 3 4 0 1 5 6 W H D T I K G N I R P S Y A W 3 3 0 6 0 3 2 3 4 0 1 5 6 D E E R R O S N E S 6 0...

Page 64: ......

Page 65: ...in FOR CONDENSING BOILERS ONLY CONFIRM THE FOLLOWING THECONDENSATEDRAINHASBEENINSTALLEDINACCORDANCEWITH THE MANUFACTURER S INSTRUCTIONS YES FOR ALL INSTALLATIONS CONFIRM THE FOLLOWING THEHEATINGANDHOTWATERSYSTEMCOMPLIES WITHCURRENTBUILDINGREGULATIONS THEAPPLIANCEANDASSOCIATEDEQUIPMENTHASBEENINSTALLEDANDCOMMISSIONED INACCORDANCEWITHTHEMANUFACTURER SINSTRUCTIONS IFREQUIREDBYTHEMANUFACTURER HAVEYOURE...

Page 66: ...CARD SERIAL No COMMENTS SIGNATURE SERVICE 5 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 7 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 9 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 2 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATUR...

Page 67: ......

Page 68: ...Bucks HP13 5FT Dublin 15 Telephone 01494 755600 Telephone 01 810 3723 Fax 01494 459775 Fax 01 810 3727 Internet www mtsgroup com uk Internet www mtsgroup com ie E mail info uk mtsgroup com E mail info ie mtsgroup com Technical Advice 0870 241 8180 Technical Advice 01 437 0121 Customer Service 0870 600 9888 Customer Service 01 437 0121 420010108501 09 2007 ...

Page 69: ...8A6H HNHI B 8A6H JhZgÉh bVcjVa L6AA JC 6H 7D A G INE 8 9B7I 9B7I 9B7I IOIJ C 9B7I IOIJ C 8 C L 8 C L 8 C L 8 C L ...

Page 70: ...t arises from within defects in the appliance caused either by material or workmanship of the manufacturer This guarantee does not protect malfunction or damage arising from incorrect installation commissioning or maintenance procedures as laid out in the installation and servicing manual inefficient flue system poor or incorrect electricicty wrong gas supply or pressure tampering by inexperienced...

Page 71: ...12 11 10 9 8 Legend 1 Display 2 RESET button 3 Red LED illuminated boiler lockout 4 Heating System Pressure Gauge 5 Selector knob for Summer Winter Central Heating Temperature Adjustment Knob 6 Programming key 7 MENU OK button 8 ESC button 9 Programming key 1 2 3 4 5 6 7 16 15 14 13 12 11 9 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 2 2 23 24 9 6 12 I 10 Domestic Hot Water adjustment ...

Page 72: ... pump anti freeze protection enabled burner anti freeze protection enabled The second and third ﬁgures indicate the ﬂow temperature when no heating requests have been made the ﬂow temperature in central heating mode the temperature of the hot water in domestic hot water mode the ﬂow temperature in anti freeze mode Winter or summer function Turn the heating button 6 to select the desired operating ...

Page 73: ...ight 4 The comfort mode has priority over any other heating request There are two settings for the comfort mode they can be adjusted in the parameters menu 1 As soon as DHW is drawn the secondary heat exchanger is kept warm for 30 mins 2 As soon as DHW is drawn the secondary heat exchanger is kept warm permanently This function may be enabled by pressing the COMFORT button Switching off the heatin...

Page 74: ...ater leak at some point in the system If this is the case please contact your installer and ask them to check it Operation shutdown This type of error is non volatile which means that it is not removed automatically The display will ﬂash Err and the error code and the red led lights up 3 In this case the boiler does not restart automatically but it may be reset by pressing the button If the proble...

Page 75: ...his leads to excessive room heating after the thermostat has been switched oﬀ resulting in energy waste and uncomfortable conditions inside the room The AUTO function takes control of the boiler and selects the best operating regime based on environmental conditions external devices connected to the boiler and the performance required It constantly decides at which power level to operate based on ...

Page 76: ...h Wycombe Mulhuddart Bucks HP13 5FT Dublin 15 Telephone 01494 755600 Telephone 01 810 3723 Fax 01494 459775 Fax 01 810 3727 Internet www mtsgroup com uk Internet www mtsgroup com ie E mail info uk mtsgroup com E mail info ie mtsgroup com Technical Advice 0870 241 8180 Technical Advice 01 437 0121 Customer Service 0870 600 9888 Customer Service 01 437 0121 ...

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Ariston Clas 24 FF, Installation And Servicing Instructions

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