Ariston Benchmark System A 24 RFF Installation And Servicing Instructions
Ariston Benchmark System A 24 RFF Installation And Servicing Instructions

Ariston Benchmark System A 24 RFF Installation And Servicing Instructions

Type c boilers
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S S Y Y S S T T E E M M A A
Country of destination
GB
IE
System A 24 RFFI
System A 30 RFFI
Installation and
Servicing
Instructions
Type C Boilers
G.C.N:
47-116-14 (24 kW)
G.C.N:
47-116-15 (30 kW)
LEAVE THESE
INSTRUCTIONS WITH THE
END-USER

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Summary of Contents for Ariston Benchmark System A 24 RFF

  • Page 1: Installation And Servicing

    S S Y Y S S T T E E M M A A Country of destination System A 24 RFFI System A 30 RFFI Installation and Servicing Instructions Type C Boilers G.C.N: 47-116-14 (24 kW) G.C.N: 47-116-15 (30 kW) LEAVE THESE INSTRUCTIONS WITH THE END-USER...
  • Page 2: Customer Care

    These instructions are suitable for the System A boilers : MTS supports Benchmark, the heating industry code to ensure the correct installation, commissioning and servicing of domestic central heating systems. To The Householder Make sure that your installer completes Section 24 of this manual, this provides a record of the commissioning of your boiler.
  • Page 3: Table Of Contents

    Contents CUSTOMER CARE Guarantee ...2 Statutory Requirements ...2 Contents ...3 INTRODUCTION ...4 USER’S INSTRUCTION ...5 1 CONTROL PANEL...5 2 HOW TO USE ...6 Switching on ...6 Time setting ...6 Heating ...6 Burner ON...6 Stand by mode ...6 Switch OFF ...6 Anti freezing mode ...7 3 MAINTENANCE ...7 4 GUARANTEE ...7...
  • Page 4: Introduction

    SERVICING INSTRUCTIONS 18 REPLACEMENT OF PARTS ...45 18.1 To Gain General Access...45 18.1.1 Removing the front panel...45 18.1.2 Lowering the control panel...45 18.2 Access to the Combustion Chamber ...46 18.2.1 Removing the combustion chamber front panel ...46 18.2.2 Removing the burner ...47 18.2.3 Removing the detection electrode ...47 18.2.4 Removing the ignition electrode...47 18.2.5 Removing the fan...48...
  • Page 5: User's Instruction

    1. Control panel 30 (System Plus only) Fig 1 Control panel (fig. 1) 26.- Display 27.- On/off push button and power on indicator light 29.- Reset push button and red indicator locking light 30.- Cylinder Hot water start button setting (System Plus only) 31.- Central Heating start button 32.- Menu button 33.- Reducing button...
  • Page 6: How To Use

    2. How to Use Switching on and filling instructions 1. Check the pressure in the central heating system is above 0.7 bar and below 1.5 bar with the pressure gauge 16 (fig.1), should it be neccessary to re-pressurise the system,ensure the filling loop 45 (fig. 2) is attached, open the filling taps 43 & 44, the pressure gauge will now start to rise, once the pressure reads 1.0 bar, close the filling taps and disconnect the filling loop.
  • Page 7: Anti Freezing Mode

    Anti-freeze and anti-sieze modes Provided the ON/OFF button is on (green light), the water pressure is adequate and the boiler has not shut down due to an error, the anti-freeze and ant-sieze operations will remain active. When the anti-freeze comes on, one of two codes will be displayed with the snowflake pictogram The two possible codes are 05 (pump anti-freeze) or 06 (burner anti-freeze).
  • Page 8: Setting The Time Clock

    6. Setting the time clock Setting the mechanical clock Fig. 3 13 13 Fig. 4 1. General layout The mechanical clock covers a 24 hour period. Each tappet represents 15 minutes A (Fig. 4). An override switch is located on the clock B (Fig 4).
  • Page 9: Setting The Digital Clock

    6. Setting the time clock Setting the Digital Clock Reset Enter switching times Imput time Automatic Operation = ON = OFF The switching times corres- pond to the program entered. Operating the time switch The steps marked with the symbol “ Preparing for Operation Activate the “Res”...
  • Page 10 6. Setting the time clock Entering the switching times You have 20 memory Iocations available. Each switching time takes up one memory location. Keep pressing the “Prog” button until a free memory location is shown in the display “– –:– –”. Programme ON or OFF with the “...
  • Page 11: Installers' Instructions

    7. Description Fig. 5 (System Plus only) Fig. 7 INSTALLER’S INSTRUCTIONS 1.- Steel chassis complete with expansion vessel 2.- Sealed chamber 3.- Burner and heat exchanger assembly 4.- Air / gas connection 5.- 24 V modulating fan 6.- Gas valve 7.- Ignition electrode 8.- Ionisation probe 9.- Ignitor...
  • Page 12: Dimensions

    8. Dimensions 296 (24 kW) 360 (30 kW) Fig. 8 9. Hydraulic data Pump Head Graph (15/50 & 15/60) 0.45 0.35 0.25 0.15 0.05 flow rate (l/hr) Pression à froid pour le circuit chauffage (en bar) Central heating initial pressure when cold (in bar) 50°C 60°C 70°C...
  • Page 13: Installation Requirements

    10. Installation Requirements Reference Standards In the United Kingdom, the installation and initial start up of the boiler must be by a CORGI Registered installer in accordance with the installation standards currently in effect, as well as with any and all local health and safety standards i.e.
  • Page 14 10. Installation Requirements It must also be possible to be able to completely isolate the appliance electrically. Connection should be via a 3 amp fused double-pole isolating switch with a contact separation of at least 3 mm on both poles. Alternatively, a fused 3 Amp. 3 pin plug and unswitched socket may be used, provided it is not used in a room containing a bath or shower.
  • Page 15 10. Installation Requirements iii) Terminating into a gully, below the grid level but above the water level. iv) Into a soakaway. : 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 Internal termination of condensate drainage pipe to internal stack External termination of condensate drainage pipe via internal discharge branch...
  • Page 16 10. Installation Requirements (continued) 3. External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste - proprietary fitting) 4. External termination of condensate drainage pipe via condensate siphon...
  • Page 17: Installing The Boiler

    11. Installing the Boiler Please check that you are familiar with the installation requirements before commencing work (Section 10). The installation accessories described in the following list are included in the boiler packaging: - Hanging bracket - A paper template (showing the dimensions of the boiler with 5 mm side clearances) - Connection tails and valves - Screws and washers - Connection washers...
  • Page 18 11. Installing the Boiler (continued) Fig. 12 Fig. 13 Fig. 14 Fig. 15...
  • Page 19: Connecting The Flue

    12. Connecting the Flue The boiler should only be installed with a flue system supplied by MTS (GB) Limited. These kits are supplied separately to the appliance in order to respond to different installation solutions. For more information with regard to the inlet/outlet accessories consult the accessory catalogue. The boiler is supplied ready for connection to a concentric flue system.
  • Page 20: Fitting The Coaxial Flue

    12.1 Fitting the coaxial flue (Ø 60/100 Horizontal) ONTENTS (60mm) ILICONE LBOW & E EALS NTERNAL XTERNAL IPE INCLUDING ERMINAL LAMP CREWS 1x Seal Once the boiler has been positioned on the wall, insert the elbow into the socket and rotate to the required position. possible to rotate the elbow 360 Using the flue clamp, seals and screws supplied (Fig 19) secure the elbow to the boiler.
  • Page 21 Fig. 20 Fig. 21 Fig. 22...
  • Page 22: Fitting Vertical Flue

    12.3 Fitting the Coaxial Flue (Ø 60 / 100 Vertical) EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS ONTENTS (60mm) ILICONE (60/100mm) ONICAL DAPTOR (80/125mm) ERTICAL CREWS The vertical flue kit is supplied with a specially designed weather proof terminal fitted, it can be used either with a flat roof or a pitched roof.
  • Page 23: Fitting The Twin Flue

    12. Connecting the flue 12.4 Fitting the twin pipe (Ø80/80) EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS Where it is not possible to terminate the flue within the distance permitted for coaxial flues, the twin flue pipe can be used by fitting a special adaptor to the flue connector and using the aperture for the air intake located on top of the combustion chamber.
  • Page 24 12.4 Fitting the twin pipe flue (Ø80/80) (continued) 123,5 Fig. 27 In the event that twin flue pipes are used, and the boiler has a side clearance of less than 60mm from the wall, it is necessary to cut a larger diameter hole for the flue pipe, this should be ø10 cm, this will then allow for easier assembly of the air intake elbow and the tube outside the wall (see Fig.
  • Page 25 12.4 Fitting the twin pipe flue (Ø80/80) (continued) RAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY FITTED ABOVE THE EXHAUST AIR INTAKE AIR INTAKE MUST NOT BE EXHAUST AIR INTAKE Fig. 29...
  • Page 26: Electrical Connections

    13. Electrical connections Making the Electrical Connections Hinge down the electrical box to gain access to the electrical connections. Push in the tabs P (Fig. 30) on either side of the boiler and pivot the box for- ward. Remove the PCB cover (see Section 18.4). Connect the live neutral and earth wires to the main cable.
  • Page 27 If a remote time clock is to be fitted, using a volt-free switching time clock, remove the link wire and connect the switching wires from the time clock following points above (see also Diagram B Fig. 32). If using an external time clock and room thermostat, remove the link wire and connect in series as above (see also Diagram C Fig.
  • Page 28: Fitting The Mechanical And Digital Time Clocks

    13. Electrical connections 13.1 Fitting the mechanical and digital time clocks To fit the integral time clock it is necessary to proceed as follows; Isolate the electical supply to the appliance; Remove the front panel as described in Section 18.1.1; Remove the plastic cover on the right hand side (Fig.
  • Page 29 13. Electrical Connections 13.2 Connecting Zone Valves (System A) The boiler can be connected to a central heating system that uses two zone valves to allow connection to an indirect storage cylinder. There are two wiring diagrams shown, one for the connection to an Unvented Cylinder (Diagram.
  • Page 30 IRING IAGRAM FOR ONNECTION TO AN ENTED YLINDER IAGRAM...
  • Page 31 IRING IAGRAM FOR ONNECTION TO AN NVENTED YLINDER IAGRAM...
  • Page 32: Commissioning And Testing

    14. Commissioning and Testing 14.1 Initial preparation MTS (GB) Limited support the Sections 24 and 25 (pages 60 and 61) of this manual the Commissioning Checklist and Service Interval Record can be found. It is important that this is completed in the presence of your customer, they are shown how to use it, and it is signed by them.
  • Page 33: Adjusting The Co2

    14. Commissioning and testing 14.3 Adjusting the CO 2. Make sure that all radiator valves are open; 3. Turn on the gas cock and check the seals on the connections with any approved soap solution and eliminate any leaks; 4. Press the reset button 29 (Fig. 1) the boiler will re-attempt ignition.
  • Page 34: External Sensor Set-Up

    14.7 External sensor and ambient sensor set-up (where fitted) N.B. To ensure that these parameters are set correctly, consult the "thermo-regulation help" document enclosed with the documentation folder. 14.8 Completion For the Republic of Ireland it is necessary to complete a “Declaration of Conformity”...
  • Page 35: Instructing The End User

    14. Commissioning and testing 14.10 Instructing the end user 1. Hand over these instructions and explain how to use the time clock and room thermostat (if fitted) and explain how to register the guarantee; 2. Show the end user how to switch the appliance off quickly, and indicate the position of the electric supply isolator;...
  • Page 36: Fitting The Casing

    15. Fitting the casing Fitting the casing Remove the protective film on the casing: - Locate the lower clips into the slots in the chassis - Engage hooks N on the casing in notches R on the side panels M operation (Fig. 43) - Fit the top of the panel in place - Close the panel mounting clamps (Fig.
  • Page 37: Sequence Of Operation

    16. Sequence of operation Central Heating Mode Activation of the time clock and/or room thermostat starts the boiler. The display panel indicates the flow temperature s in central With the boiler in rest, the diverter valve is in the domestic hot water position, activation of the central heating changes the position of the motorised valve head, moving the diverter valve into the central heating position.
  • Page 38: Adjustments And Settings

    17. Adjustments and settings The boiler is delivered with pre-set values described in menus 3 and 4. All settings must only be changed by the installer or a qualified person. To gain access to the setting buttons please, open the front control panel cover P) and follow the instructions below.
  • Page 39 ACTION 5 ” Last default occured Last but one default occurred x times Last default occurred before the previous Note -- is displayed if no default is recorded Indicates the conditions or the configurations of the boiler once Software version of display PCB Software version of main PCB Flue type x times...
  • Page 40 ACTION once Inactive DHW thermostatic kit fitted to boiler? x times (fix DHW temp to 65°C) Optional programmer action Inactive Inactive DHW Delay after a DHW cycle) Inactive CONFIGURATION Menu - 3 - Boiler options Rubrique Elément 1 Elément 2 (time before CH relight DISPLAY Elément 3 et 4...
  • Page 41 ACTION once Section Stop pump after burner stops x times Pump speed Pump post circulation duration Inactive Maximum Central Heating flow temperature Minimum Central Heating flow temperature Inactive Inactive CH anti-cycling delay CH maximum output (range rating) CONFIGURATION Menu - 4 - Boiler settings Digit 1 Digit 2 0 to 5 min by step...
  • Page 42 ACTION once Combustion rate control mode OFF Combustion rate control mode ON once Gaz output setting x times To cancel the combustion rate control mode press button “Menu”. The combustion rate control mode will be inactive when : - boiler is in stand by mode - heating mode with room thermostat and initial heating temperature reaches max.
  • Page 43 ACTION once Section x times Type of control Compensation Slope Parallel shift Inactive Inactive Inactive Inactive Inactive Inactive * Available only with Clima Manager N.B. To ensure that these parameters are set correctly, consult the "thermo-regulation help" document enclosed with the documentation folder.
  • Page 44 17. Adjustements and Setting CH anti cycling delay setting : If you would like to change the setting of CH anti cycling delay, if you want 3 mn ,please proceed as follow : (note : the factory setting is 2 mn 30 seconds and the following explanation refer to menu 4 section 8) Switch to installer mode, press button for 5 seconds, the display shows :10=0 if there is no...
  • Page 45: Servicing Instructions

    SERVICING INSTRUCTIONS To ensure efficient safe operation, it is recommended that the boiler is serviced annually by a competent person, refer to Section 20 (page 53) for the Servicing Schedule. Before starting any servicing work, ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool.
  • Page 46: Access To The Combustion Chamber

    18.2 Access to the Combustion Chamber 18.2.1 Removing the air gas assembly 1. Isolate the gas supply to the boiler; 2. Carry out step 18.1.1; 3. Remove the silencer (Fig. 49); Fig. 49 6. Unplug the gas valve and fan connectors (Figs. 53 and 54); Fig.
  • Page 47: Removing The Burner

    18.2.2 Removing the burner Do not remove the burner unless absoluly necessary. 1. Carry out step 18.1.1 and 18.2.1 (without removing the 4 nuts D); 2. Remove the 3 screws F from the air/gas manifold (Fig. 58); Fig. 58 18.2.3 Removing the detection electrode 1.
  • Page 48: Removing The Fan

    18.2.5 Removing the fan 1. Carry out step 18.1.1; 2. Remove the air gas manifiold as in step 18.2.1 (Fig. 67); Fig. 67 18.2.6 Removing the gas valve 1. Carry out step 18.1.1; 2. Remove the air gas manifiold as in 18.2.1 (Fig.
  • Page 49: Removing The Heat Exchanger

    18.2.7 Removing the heat exchanger 1. Carry out step 18.1.1; 2. Remove the air gas manifiold as in 18.2.1 (Fig. 74); Fig. 74 5. Remove the two bolts securing the exchanger (Fig. 76); Fig. 76 18.2.8 Removing the spark generator 1.
  • Page 50: Access To The Water Circuit

    18.3 Access to the Water Circuit Important! Before any component is removed, the boiler must be drained of all water. 18.3.1 Drain down Close the flow and return isolating valve and open the pressure relief valve. 18.3.2 Removing the 3 way valve 1.
  • Page 51: Removing The Pump

    18.3.5 Removing the pump 1. Carry out step 18.1.1; 2. Lower the electrical box cover as in step 18.1.2; 3. Remove the PCB cover; 4. Remove the pump plug from the control board and earth plug from earth socket (see Fig. 93); 5.
  • Page 52: Removing The Domestic Expansion Vessel

    18.3.7 Removing the expansion vessel 1. Carry out step 18.3.1; 2. Isolate the gas supply and disconnect all pipe connections; 3. Remove the boiler from the wall 4. Unscrew the nut U (see Fig. 98); 18.3.8 Removing the overheat thermostat 1.
  • Page 53: Removing The Pressure Gauge

    18.3.10 Removing the pressure gauge 1. Carry out step 18.4.6; 2. Remove the pressure gauge by releasing the two clips V and pulling the pressure gauge out. (see Fig. 102) 18.3.12 Removing & cleaning the condensate trap 1. Unscrew the cap of the condensate trap (see Fig. 104) 18.4 Access to the Control System 18.4.1 Removing the P.C.B.s...
  • Page 54: Removing The Fuses

    4. Remove the two screws W3 from the front control panel and lower the front control panel (see Fig. 108); 6. To remove the display PCB, remove the two screw W3 and lift the PCB out (see Fig. 110); 7. Reassemble in reverse order; 18.4.2 Removing the fuses 1.
  • Page 55: Incorrect Function

    19. Incorrect function In case of problem, or when the boiler has displayed an error code, the display flashes 2 digits. Please refer to the table below to diagnose the fault. For faults 01 and 03, A appears on the display, the boiler is locked and the reset button illuminates (28). To reset the boiler press the reset button 29.
  • Page 56: Gas Conversion

    20. Gas conversion If the boiler is not set for the gas type, converson kits are available. To convert the boiler, please use exclusively MTS parts and proceed as it is mentioned in the instruction manual provided with the conversion kit. 21.
  • Page 57: Maintenance Instructions

    22. Maintenance Instructions 22.1 General remarks It is recommended that the following inspections be carried out on the boiler at least once a year; 1. Check the seals in the water group, and if necessary, replace the gasket and restore the seal to perfect working order;...
  • Page 58: Short Spares List

    23. Short spares list Description Key N 0100 BURNER ASSEMBLY 0101 BURNER 24KW BURNER 30KW 0103 SOUPAPE 0110 IGNITION ELECTRODE 0111 IONIZATION ELECTRODE 0112 GASKET D:85-66.5-2.5 0400 GAS SECTION 0401 GAS VALVE GAS VALVE 0407 FAN ASSY 0500 HYDRAULIC BLOCK 0502 MOTOR - THREE-WAY VALVE 0506...
  • Page 59: Technical Data

    24. Technical data Model CE certificate Performance category NoX class Category Heating output Heating output Variable cylinder heating power Nominal gas flow rate (15°C-1013 mbar) Central Heating and cylinder heating (gas flow rate) G20 (NG H - Lacq) 34,02 MJ/m under 20 mbar G31 (propane) 46,4 MJ/kg under 37 mbar...
  • Page 61: Benchmark Commissioning Checklist

    25. Benchmark Commissioning Checklist BOILER SERIAL No. CONTROLS To comply with the Building Regulation, each section must have a tick in one or other of the boxes TIME & TEMPERATURE CONTROL TO HEATING TIME & TEMPERATURE CONTROL TO HOT WATER HEATING ZONE VALVES HOT WATER ZONE VALVES THERMOSTATIC RADIATOR VALVES...
  • Page 62: Service Interval Record

    26. Service Interval Record S E R V I C E I N T E R VA L R E C O R D It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider.
  • Page 63 ERMS AND Please read these terms and conditions which are in addition to any terms and conditions detailed in this book or any registration card supplied with your appliance. A charge will be made to the owner of the appliance if: The reason for any service visit is as a direct result ∑...
  • Page 64 Chaffoteaux & Maury are continuously improving their products and therefore reserve the right to change specifications without prior notice and accepts no liability for any errors or omission in the information contained in this document. Manufacturer: Commercial subsidiary: MTS (GB) Limited MTS (SA) - France MTS Building Hughenden Avenue...

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