Ariston CLAS HE R Installation And Servicing Instructions Download Page 51 | Manualshive

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51

MAINTENANCE GUIDE

4.5 GAS VALVE

Tools

Time

15 min

LEGEND

1. Venturi

2. Gas valve

3. Solenoids

4. Inlet test niple

5. Offset adjustment

6. Throttle adjustment

1

2

3

5

4

6

Gas inlet

Gas outlet

1

Remove the combustion

assembly (see 4.3)

Twist the gas valve anti-clockwise to disen-

gage it from the fan

Replacement Gas Valves are not fac-

tory set and will need to be set up

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Summary of Contents for CLAS HE R

Page 1: ...CONDENSING WALL HUNG GAS BOILER Country of Destination GB IE HOT WATER I HEATING I RENEWABLE I AIR CONDITIONING INSTALLATION AND SERVICING INSTRUCTIONS CLAS HE R G C N 41 116 46 24 kW ...

Page 2: ...l Diagram 24 Commissioning 29 Initial Preparation 29 Electricity Supply 29 Filling the Heating System 29 Filling of the DHW System 29 Gas Supply 29 Water Treatment 29 First Igniton Operation 30 Ignition procedure 31 Test Function and Combustion Analysis 32 AUTO Function 34 Boiler Protection Devices 35 Boiler Protection Devices 35 Anti Frost Device 35 Table summarising error codes 35 Settings Adjus...

Page 3: ...ned by contacting the ARISTON Technical and Customer Service Departments at High Wycombe TECHNICAL DEPARTMENT CUSTOMER SERVICE DEPARTMENT Tel 0333 240 7777 Tel 0333 240 8777 Fax 01494 459775 Fax 01494 459775 GUARANTEE The manufacturer s guarantee is for 2 years from the date of purchase The guarantee is invalidated if the appliance is not installed in accordance with the recommendations made herei...

Page 4: ...ich should only be performed using original spare parts should be carried out by a qualified professional Failure to comply with the above instructions could compromise the safety of the appliance and invalidate all liability on the part of the manufacturer In the event of any maintenance or other structural work in the immediate vicinity of the flue or flue gas exhaust devices and their accessori...

Page 5: ...ould fall from a height Disconnect it and replace it safely after use Personal injury caused by falling splinters or fragments inhalation of dust knocks cuts puncture wounds abrasions noise and vibration Damage to the appliance or surrounding objects caused by falling splinters knocks and incisions Make sure any portable ladders are positioned securely that they are suitably strong and that the st...

Page 6: ... components that may contain hot water carrying out any bleeding if necessary Personal injury caused by burns Descale the components in accordance with the instructions provided on the safety data sheet of the product used airing the room wearing protective clothing avoid mixing different products and protect the appliance and surrounding objects Personal injury caused by acidic substances coming ...

Page 7: ...or lockout light 4 Button _ 5 Temperature regulation knob 6 Esc button 7 Menu OK button Programming key 8 Button 9 ON OFF button Green indicator ON OFF 10 Blue indicator burner ON 11 Green indicator Auto function 12 Auto button To activate Thermoregulation 5 3 2 1 4 9 10 11 8 7 6 12 ...

Page 8: ...connection box 14 Modulating fan 15 Ignition electrodes 16 Ignitor 17 Thermal fuse 18 Combustion analysis test point 19 Flue connector Overall Dimensions Minimum clearances In order to allow easy access to the boiler for maintenance operations The boiler must be installed in accordance with the clearances stated below 1 2 3 4 7 5 6 8 9 10 11 18 19 17 16 15 14 13 12 200 200 120 120 96 5 70 7 122 25...

Page 9: ...813 Domestic Gas Installations Avoid installing the boiler where the air inlet can be polluted by chemical products such as chlorine swimming pool area or ammonia hair dresser or alkalin products launderette Flue Detailed information on flue assembly can be found in the Connecting the Flue section Theboilermustbeinstalledsothattheflueterminalisexposedtothe free passage of external air at all times...

Page 10: ...meter The cold feed pipe must be a minimum of 15mm diameter The cold feed and open vent pipes must rise continuously and be unrestricted The minimum distance from the top of the boiler to the bottom of the F E tank shall be no less than 2m Whilst the maximum distance shall be not more than 27m The distance between the bottom of the F E tank and the highest point of the open vent must be no less th...

Page 11: ... of the boiler circuit and replace it when the amount measured is out of the range stipulated by the manufacturer 7 pH 8 DO NOT MIX DIFFERENT TYPES OF ANTI FREEZE In under floor systems the use of plastic pipes without protection against penetration of oxygen through the walls can cause corrosion of the systems metal parts metal piping boiler etc through the formation of oxides and bacterial agent...

Page 12: ... water seal of 75mm and an air break must be incorporated in the pipe run as above iii Terminating into a gully below the grid level but above the water level iv Into a soakaway Note If any condensate pipework is to be installed externally then it should be kept to a minimum and be insulated with a waterproof insulation and have a continuous fall The total length of external pipe used should not e...

Page 13: ...cribed in the Commissioning Instructions The system should be carefully checked for leaks as frequent refilling could cause premature system corrosion or unnecessary scaling of the heat exchanger Pay special attention not to bend the condensate silicone drain pipe is such a way as to interrupt the flow Please only use drain pipe material compatible with condensate products refer to BS 6798 2000 Th...

Page 14: ...orming any work on the boiler first disconnect it from the electrical power supply using the external bipolar switch removing the fuse and shutting off the gas valve To access the inside of the boiler the following is necessary 1 Loosen the two screws on the front casing a pull it forwards and unhook it from the upper pins b 3 Remove the control panel c 4 Unhook the two clips on the combustion cha...

Page 15: ...THE CAP ON THE TRAP POSITIONED UNDERNEATH THE BOILER FILL IT WITH WATER AND REFIT IT WARNING INSUFFICIENT WATER IN THE TRAP CAN TEMPORARILY CAUSE THE FLUE GAS TO BE EXPELLED INTOTHE SURROUNDING AMBIENT AIR Water circuit diagram 2 1 4 3 6 7 8 5 A B C 1 C H flow temperature probe 2 C H return temperature probe 3 Burner 4 Detection electrode 5 Condensate trap 6 Modulating fan 7 Ignition electrodes 8 ...

Page 16: ... steaming must be considered If the terminal is less than 2 metres above a balcony above ground or above a flat roof to which people have access then a suitable stainless steel terminal guard must be fitted The minimum acceptable spacing from the terminal to obstructions and ventilation openings are specified in Fig 1 A Directly below an opening window etc 300 mm B Horizontally to an opening windo...

Page 17: ...ble for an exact X dimension of 753mm Measure the distance from the face of the external wall to the face of the flue elbow X Fig 2 this figure must now be subtracted from 753mm you now have the total amount to be cut from the plain end of the flue Draw a circle around the outer flue and cut the flue to the required length taking care not to cut the inner flue next cut the inner flue ensuring that...

Page 18: ... it is simply 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 and that all elbows and bends have been taken into consideration for each additional 90 elbow 1 metre must be subtracted from the total flue length and for each 45 0 5 metres must be subtracted...

Page 19: ...te there is no need to use a clamp to secure this as it is a push fit connection the vertical flue kit must then be inserted through the roof flashing this will ensure that the correct clearance above the roof is provided as the terminal is a fixed height Should extensions be required they are available in 1 metre Part No 3318077 500mm Part No 3318078 and they must be connected directly to the ver...

Page 20: ...the lip seal is not dislodged when assembling the flue greasing the seal will aid assembly Twin pipe can also be converted back to Coaxial flue to enable vertical termination with a coaxial kit by using the pipe bridge Twin Coaxial Adaptor Part No 3318089 When running the twin flue pipe vertically Itisnotpossibletoterminateconcentricallyhorizontally Termination is only possible with separate air a...

Page 21: ... exhaust gas ducts 2 If you need to insert elbows in the air intake and exhaust gas ducts you should consider for each one the equivalent length to be included in the calculation of developed length 3 The exhaust gas duct should jut above the roof by at least 0 5 m 4 The intake and exhaust gas ducts in Type C13 C53 must be installed on the same wall or where the exhaust is vertical and the air int...

Page 22: ...st equal lengths S1 S2 Air intake and flue gas exhaust unequal lengths FLUE TYPE Maximum Extension Exhaust air m Diameter of pipe mm CLAS HE R 24 EU Coaxial System C13 C33 C43 12 ø 60 100 C13 C33 C43 36 ø 80 125 Twin pipe System S1 S2 ø 80 80 C13 36 C33 60 C43 C53 S1 S2 84 ø 80 80 TYPE C13 TYPE C33 TYPE C53 TYPE C33 TYPE C33 ...

Page 23: ...le pole isolator having a contact separation of at least 3mm in all poles or alternatively by means of a 3A fused three pin plug and unswitched shuttered socket outlet both complying with BS1363 The use of multiplugs extension leads or adaptors is strictly prohibited It is strictly forbidden to use the piping from the hydraulic heating and gas systems for the appliance earthing connection The boil...

Page 24: ...3 2 1 CN11 12 13 11 10 9 8 7 6 5 4 3 2 1 CN12 11 10 9 8 7 6 5 4 3 2 1 CN24 CN21 5 4 3 2 1 2 1 CN16 Detection electrode 5 1 Display Ignitor Gas valve Modulating fan Thermal fuse C H flow temp probe 12 13 11 10 9 8 7 6 5 4 3 2 1 CN24 11 10 9 8 7 6 5 4 3 2 1 CN12 C H return temp probe Remote control optional DZ2 CN2 IC1 CN5 1 CN7 D2 1 1 CN1 1 CN8 R8 R1 C3 1 1 CN6 C1 R7 R5 DZ1 C2 R3 R2 D3 C4 D1 R6 D4 ...

Page 25: ... 25 INSTALLATION TERMINAL STRIP S Plan system utilizing external 2 channel programmer and Ariston unvented hot water cylinder ...

Page 26: ...26 INSTALLATION S Plan system utilizing integral 2 channel programmer and Ariston unvented hot water cylinder ...

Page 27: ... 27 INSTALLATION Y Plan system utilizing external 2 channel programmer ...

Page 28: ...28 INSTALLATION Y Plan system utilizing integral 2 channel programmer ...

Page 29: ... relevant standards In GB this is BS 6891 and in IE this is the current edition of I S 813 The connection on the the appliance is a 15mm 22mm on 38Kw nut and olive located at the rear of the gas service cock If the gas supply serves other appliances ensure that an adequate supply is available both to the boiler and the other appliances when they are in use at the same time Pipe work must be of an ...

Page 30: ...e Complete 5 Check the Flue Complete 6 Fill the installation Complete 7 Check the hydraulic water tightness Complete 8 Set the heating power Complete 9 Balance the central heating circuit Complete 10 Measure the gas inlet working pressure Complete 11 Check the boiler combustion Complete 12 Gas rate the appliance Complete 13 Explain to the end user how to use the boiler timer control Complete 14 Co...

Page 31: ...ly Check that the voltage and frequency of the electricity supply correspond to the data shown on the boiler data plate Make sure that the earthing connection is efficient First ignition 1 Make sure that The gas valve is closed The electrical connection has been properly carried out Make sure that the green yellow earthing wire is connected to an efficient earthing system Switch on the boiler by p...

Page 32: ...FORE REQUIRED WITH REGARD TO LOW TEMPERATURE INSTALLATIONS Maximum gas flow combustion analysis Activate the test function at the maximum heating power press the button Wait for the boiler to stabilise before carrying out the combustion analysis Check the CO2 value according to the table opposite N B when the front combustion chamber panel is open the CO2 value drops by 0 3 If the values taken dif...

Page 33: ...wn on the display as 1 i e 1 To check the slow ignition power access menu 2 sub menu 2 parameter 0 Heating ignition delay adjustment This parameter menu 2 sub menu 3 parameter 5 can be used to manually 0 or automatically 1 set the delay time before the subsequent reignition of the burner after it has switched off on reaching the desired temperature in central heating mode By selecting manual 0 it ...

Page 34: ... in steps of 4 C may be set The value varies according to the type of system and installation If the Boost Time value 00 the function is not activated Example 2 Single zone system high temperature with on off room thermostat outdoor sensor In this case the following parameters must be set 4 21 Activation of temperature adjustment using sensors Select 3 outdoor sensor only 4 22 Temperature adjustme...

Page 35: ... permit a maximum of 5 resets in 15 minutes 5 presses of the RESET button at the 6th attempt within this 15 minute period the boiler will shut down and may only be operated again after the electricity supply has been disconnected If the shutdown is occasional or an isolated event this is not a problem Anti frost Device The anti frost function acts on the central heating flow temperature probe inde...

Page 36: ...e parameter e g 70 231 11 Press the buttons or to select the new value e g 75 12 Press Menu Ok to save the change or press Esc to exit without saving To exit press the Esc button until the normal display screen is restored For menus which do not require the access code it is possible to pass directly from the menu to the sub menu Accessing the settings adjustment problem identification menus The b...

Page 37: ...tting table in commissioning 2 3 3 Minimum RPM percentage CANNOT BE MODIFIED 0 to 99 2 3 4 Heating maximum RPM percentage CANNOT BE MODIFIED 0 to 99 2 3 5 Selection of ignition delay type when heating 0 Manual 1 Automatic 1 see section on gas setting in commissioning 2 3 6 Ignition delay when heating timer setting from0to7minutes 3 2 3 7 Post circulation when heating from0to15minutesorOC AC 3 2 3 ...

Page 38: ...most suitable heating flow temperature taking the external temperature and the type of appliance into account The type of curve must be chosen according to the type of appliance radiator and the heat losses present in the building C 20 25 15 30 40 50 60 70 80 90 100 C 10 2 5 3 0 3 5 2 0 1 5 1 2 1 0 0 8 0 6 0 4 0 2 5 0 5 10 15 20 C External temperature High temperature Flow Temperature low temperat...

Page 39: ...82 C 82 if parameter 420 1 20 to 45 C 45 if parameter 420 0 5 2 6 Zone 2 heating minimum temperature setting 35 to 82 C 35 if parameter 420 1 20 to 45 C 20 if parameter 420 0 5 3 DIAGNOSTICS 5 3 0 NOT PRESENT 5 3 1 NOT PRESENT 5 3 2 NOT PRESENT 5 3 3 Zone 2 set temperature 5 3 4 Zone 2 heat request 0 OFF 1 ON 5 3 5 Zone 2 Pump status 0 OFF 1 ON 5 4 ZONE DEVICE MANAGEMENT 5 4 0 NOT PRESENT 5 4 1 NO...

Page 40: ...PCB software version 8 5 6 NOT PRESENT 8 6 STATISTICS 8 6 0 Number of hours burner operating in heater mode xxh 10 8 6 1 NOT PRESENT 8 6 2 Number of flame separations nr 10 8 6 3 Number of ignition cycles nr 10 8 6 4 NOT PRESENT 8 6 5 Average length of heating request minutes 8 7 E SY HOTLINE NOT ACTIVE 8 7 0 8 7 1 8 8 ERROR LIST 8 8 0 10 last errors from E00 to E99 This parameter allows the last ...

Page 41: ...d adjustment and monitoring parts are working correctly Check the flue system is sealed and 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 Open the system drain off cock and collect the escaping water in a container Empty the water from the lowest points of t...

Page 42: ...42 MAINTENANCE GUIDE 1 GENERAL ACCESS Tools Time 3 min 1 Remove the two screws Remove the front panel Lower the control panel 2 Remove the combustion chamber front panel by releasing the clips ...

Page 43: ... 43 MAINTENANCE GUIDE 2 ELECTRICAL UNIT 2 1 CONTROL BOX ACCESS Tools Time 4 min 1 Pull and Lower the electrical box cover 2 2 FUSE Tools Time 4 min 1 Remove the fuse ...

Page 44: ... connectors Unscrew the two screws and remove the PCB 2 4 DISPLAY PCB Tools Time 7 min 1 Remove the two screws Remove the front panel Lower the door 2 Remove the control knob Unscrew the four screws and pull the assembly towards you Disconnect the electrical plug connectors unlock the four clamps and remove the PCB ...

Page 45: ...RS Tools Time 5 min 1 NTC1 NTC2 NTC1 Black wires NTC2 Grey wires Unplug the electrical connec tors Remove the clip and the tem perature sensor IMPORTANT Do not use conducting paste for the contact sensors because it will alter the resistance value TEMPERATURE RESISTANCE kOmh 0 27 10 17 20 12 25 10 30 8 40 5 50 4 3 HYDRAULIC UNIT ...

Page 46: ...o clips and disconnect the two pipes Disconnect electrical gas valve and electrode detection and ignition Remove the four screws and dis connect the gas pipe from the gas valve Remove the four screws to free the heat exchanger 2 Pull the heat exchanger towards you Twist the thermal fuse to remove ...

Page 47: ...47 MAINTENANCE GUIDE LEGEND 1 Burner 2 Fan 3 Silencer 4 Gas inlet 5 Air inlet 6 Gas valve 7 Mixing tube 8 Detection electrode 9 Ignition electrode 10 Spark generator 4 BURNER UNIT 1 8 3 2 7 6 10 10 9 5 4 ...

Page 48: ...NERATOR Tools Time 5 min 1 Unplug the ignition electrode from the spark generator Remove the screws and the spark generator 4 2 ELECTRODES Tools Time 6 min 1 Unplug the electrodes Remove the screws and pull the elec trodes towards you ...

Page 49: ...y Remove the four screws and disconnect the gas pipe from the gas valve Pull the assembly towards you Remove the silencer 2 Pull the burner toward you Remove the three screws to free the burner door Replace any gaskets that are damaged or showing signs of deterioration 1 3 2 Page 17 of 21 Remove the screws to free the burner door Remove the three screws Pull the burner toward you Replace any gaske...

Page 50: ...emove the three screws to free the fan Twist the gas valve anti clockwise to disengage it from the fan Remove the combustion assembly see 4 3 1 Venturi 2 Gasket Fan mixer venturi according to the model Power Fan Venturi diameter 18 KW EBM RG 128 45 W Ø 17 mm 25 KW EBM RG 128 45 W Ø 17 mm EBM RG 128 45 W Ø 21 mm 30 KW 3 Fan EBM RG 128 45 W Ø 25 mm 38 KW Page 18 of 21 4 4 FAN ...

Page 51: ... 3 Solenoids 4 Inlet test niple 5 Offset adjustment 6 Throttle adjustment 1 2 3 5 4 6 Gas inlet Gas outlet 1 Remove the combustion assembly see 4 3 Twist the gas valve anti clockwise to disen gage it from the fan Replacement Gas Valves are not fac tory set and will need to be set up ...

Page 52: ... Burner Maintenance Interval Annually How Visual inspection Clean as necessary Fan Maintenance Interval Annually How Visual inspection Clean as necessary Primary heat exchanger Maintenance Interval Annually How Visual inspection Clean as necessary Condensate trap Maintenance Interval Annually or after cleaning primary heat exchanger How Visual inspection Clean as necessary Add water before replaci...

Page 53: ...lorific flow rate efficiency 60 80 C Hi Hs 94 3 84 9 Efficiency rating dir 92 42 EEC stars Sedbuk Band Rating band A 90 3 Loss when stopped T 50 C 0 2 Loss of burner gas when operating 2 5 EMISSIONS Available air pressure Pa 137 NoX class less than 70mg kWh class 5 Flue gas temperature G20 80 C 60 C C 72 CO2 content G20 80 C 60 C 9 0 CO content 0 O2 80 C 60 C ppm 180 O2 content G20 80 C 60 C 4 0 M...

Page 54: ...ing energy efficiency ηs 93 Useful efficiency at rated heat output and high temperature regime 60 80 C η4 88 5 Useful efficiency at 30 of rated heat output and low temperature regime Return temperature 30 C η1 98 2 AUXILIARY ELECTRICITY CONSUMPTION At full load elmax kW 0 031 At part load elmin kW 0 017 In standby mode PSB kW 0 004 OTHER ITEMS Standby heat loss Pstby kW 0 054 Ignition burner power...

Page 55: ...ure control and solar device 6 the seasonal space heating energy efficiency class of the package of combination heater temperature control and solar device determined in accordance with the figure 1 in the following pages The head of the arrow containing the seasonal space heating energy efficiency class of the package of combination heater temperature control and solar device shall be placed at t...

Page 56: ...ferential heat pump combination heaters V the value of the difference between the seasonal space heating energy efficiencies under average and colder climate conditions expressed in VI the value of the difference between the seasonal space heating energy efficiencies under warmer and average climate conditions expressed in b the elements set out in Figure 5 for evaluating the water heating energy ...

Page 57: ...d supplementary heat pump installed with low temperature heat emitters at 35 C From fiche of heat pump Supplementary heat pump From fiche of heat pump Select smaller value III x IV x x 0 9 x 100 x I x II Collector size in m2 Tank volume in m3 Collector efficiency in Tank rating A 0 95 A 0 91 B 0 86 C 0 83 D G 0 81 4 4 5 5 6 7 0 5 x OR 0 5 x 7 50 x II G F E D C B A A A A 30 30 34 36 75 82 90 98 125...

Page 58: ...5 131 170 213 33 36 39 65 100 130 163 G M L XL XXL F E D C B A A A A Water heating energy efficiency under colder and warmer climate conditions 0 2 x 0 4 x Colder Warmer 3 3 2 2 Water heating energy efficiency of package under average climate The energy efficiency of the package of products provided for this fiche may not correspond to its actual energy efficiency once installedinabuilding astheef...

Page 59: ...nterlock Provided ALL SYSTEMS The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer s instructions Yes What system cleaner was used What inhibitor was used Quantity litres Has a primary water system filter been installed Yes No CENTRAL HEATING MODE measure and record Gas rate m hr OR ft hr Burner operating pressure if applicable mbar OR Gas inlet pressure mbar C...

Page 60: ...egister No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 04 Date Engineer name Company name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 05 Date Engineer name Company name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Wher...

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Page 64: ...N DESIGN Ariston Thermo UK Ltd Artisan Building Hillbottom Road High Wycombe Bucks HP124HJ Telephone 01494 418500 Technical Advice 0333 240 7777 Customer Service 0333 240 8777 ariston com uk 420010619900 0915 ...

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