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Ariston C Operating Instructions Manual

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See also: Instructions for Installation and Servicing , Installation, Operating and Service Instructions
Installation, Servicing and
Operating Instructions
Type C Boilers
SYSTEM A 24 MFFI G.C.N: 41-116-14
SYSTEM A 30 MFFI G.C.N: 41-116-15
LEAVE THESE INSTRUCTIONS
WITH THE END USER
Country of destination: GB/IE

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  • Page 1 Installation, Servicing and Operating Instructions Type C Boilers SYSTEM A 24 MFFI G.C.N: 41-116-14 SYSTEM A 30 MFFI G.C.N: 41-116-15 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination: GB/IE...

  • Page 2: Customer Care

    In the unlikely event of any problems with your boiler or system you should first contact your installer. If your installer cannot resolve the problem he should telephone our national service helpline. A charge may be made if Ariston Service is called out to resolve a non-product related fault. Your statutory rights are not affected.

  • Page 3: Table Of Contents

    Contents CUSTOMER CARE Page Guarantee ................................2 Statutory Requirements ............................2 Contents ................................3 INTRODUCTION ..............................4 USER’S INSTRUCTION ............................5 1 CONTROL PANEL............................5 2 HOW TO USE ..............................6 Switching on and filling ..........................6 Time setting ............................6 Heating ..............................6 Burner ON..............................6 Stand by mode ............................6 Switch OFF .............................6 Anti-freeze and anti-sieze mode ......................7 3 MAINTENANCE ..............................7...

  • Page 4: Introduction

    SERVICING INSTRUCTIONS 18 REPLACEMENT OF PARTS .........................46 18.1 To Gain General Access........................46 18.1.1 Removing the front panel........................46 18.1.2 Lowering the control panel........................46 18.2 Access to the Combustion Chamber .....................47 18.2.1 Removing the air/gas assembly......................47 18.2.2 Removing the burner ..........................48 18.2.3 Removing the detection electrode ......................48 18.2.4 Removing the ignition electrode......................48 18.2.5 Removing the fan...........................49 18.2.6 Removing the gas valve.........................49...

  • Page 5: User's Instruction

    USER’S INSTRUCTIONS 1. Control Panel Fig 1 Control panel (Fig.1) Connecting bracket 16.- Pressure Guage Taps shown in Open position (Fig. 2) 25.- Display 26.- On/off push button and power on indicator light 39 : Gas service tap 28.- Reset push button and red indicator lockout light 41 : Central heating flow isolating valve 30.- Central Heating control knob and temperature setting...

  • Page 6: How To Use

    2. How to Use Switching on 1. Check that the pressure in the central heating system is above 0.7 bar and below 1.5 bar on 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 (Fig.

  • Page 7: Anti-Freeze And Anti-Sieze Mode

    06 (Burner anti-freeze): When the boiler senses a temperature of 3°C or lower, the boiler will fire at minimum power until a temperature of 33°C is achieved, the pump will run for 2 minutes after the burner is switched off.

  • Page 8: Setting The Time Clocks

    2. To set the time To set the time of day, grasp the outer edge of the dial and turn slowly clockwise until the correct time is lined up with the arrow C (Fig. 5). 3. To Set the "On" and "Off" times The clock uses a 24 hour system e.g.

  • Page 9: Setting The Digital Clock

    6. Setting the Time Clock (continued) Setting the Digital Clock Manual switch Summer and winter time setting Reset Enter Enter switching the hours times Week- days flash Imput Enter time minutes Enter weekday/s Operating the time switch The steps marked with the symbol “ ”...
  • Page 10 6. Setting the Time Clock (continued) Entering the switching times You have 20 memory Iocations available. Each switching time takes up one memory location. Keep pressing the “Prog” key until a free memory location is shown in the display “– –:– –”. Programme ON or OFF with the “...

  • Page 11: Installers' Instructions

    INSTALLER’S INSTRUCTIONS 7. Description 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 10.- Combustion products manifold 11.- Condense trap 12.- Silencer...

  • Page 12: Dimensions

    8. Dimensions All dimensions in mm Safety valve C/H and condensate Heating flow Cylinder return Gas supply Cold water supply Heating return Weight with packaging : 24 kW : 34 kg 30 kW : 37 kg Minimum space required 450mm...

  • Page 13: Hydraulic Data

    The graphs (Fig. 10) show the development of the pressure available in relation to flow (on exit from the boiler). - the average operating temperature in °C To ensure correct operation, the minimum flow of the - the static height, which is the difference in metres between appliance must be 300 l/h.

  • Page 14: Installation Requirements

    A - Directly below an open window or other opening servicing. B - Below gutters, solid pipes or drain pipes C - Below eaves Codes of Practice D - From vertical drain pipes and soil pipes Installation should also comply with the following British...
  • Page 15 10. Installation Requirements (continued) It must also be possible to be able to completely isolate the MTS suggests the use of suitable anti-freeze products such appliance electrically. Connection should be via a 3 amp as Fernox ALPHI 11, which will prevent rust and incrustation fused double-pole isolating switch with a contact separation taking place.
  • Page 16 10. Installation Requirements (continued) iii) Terminating into a gully, below the grid level but above fall. The total length of external pipe used should not exceed the water level. 3 metres. iv) Into a soakaway. Some examples of the type of condensate terminations can be found below.
  • Page 17 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 18: Installing The Boiler

    - Remove the caps and connect the valves to the boiler using the washers provided in the plastic bag. 2 x fibre washers for the C/H flow and return. 1 x rubber washer for gas connection Safety valve discharge The pressure relief valve tube is made of copper.
  • Page 19 11. Installing the Boiler (continued) Fig. 13 Fig. 14 Fig. 15 Fig. 16...

  • Page 20: 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 21: Fitting The Coaxial Flue (Ø 60/100 Horizontal)

    12.1 Fitting the coaxial flue (Ø 60/100 Horizontal) ONTENTS (60mm) ILICONE LBOW & E EALS NTERNAL XTERNAL - 60/100) IPE INCLUDING ERMINAL METRE 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. : It is NOTE possible to rotate the elbow 360...
  • Page 22 Fig. 21 Fig. 22 Fig. 23...

  • Page 23: Fitting The Coaxial Flue (Ø 60 / 100 Vertical)

    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 24: Fitting The Twin Pipe Flue (Ø80/80)

    12.4 Fitting the twin pipe flue (Ø80/80) EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS ABLE 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 25 12.4 Fitting the twin pipe flue (Ø80/80) (continued) 123.5 Fig. 28 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 ø100 mm, this will then allow for easier assembly of the air intake elbow and the tube outside the wall (see Fig.
  • Page 26 12.4 Fitting the twin pipe flue (Ø80/80) (continued) RAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY Fig. 30...

  • Page 27: Electrical Connections

    13. Electrical Connections Making the Electrical Connections Lower the electrical box to gain access to the elec- trical connections. Push in the tabs P (Fig. 31) on either side of the boiler and pivot the box forward. If using a room thermostat or other external control, they can be connected in place of the link on the ter- minal block (Diagram A- Fig.
  • Page 28 If using an external time clock and room thermostat, remove the link wire and connect in series as above (see also Diagram C Fig. 33). Live and Neutral connections to operate the clock motor must be taken from a suitable source.

  • Page 29: Fitting The Mechanical And Digital Time Clocks

    13. Electrical Connections (continued) 13.1 Fitting the Mechanical and Digital Time Clocks To fit the integral time clock it is necessary to proceed as follows; (this should only be carried out by a competent engineer) Isolate the electical supply to the appliance; Remove the front panel as described in Section 18.1.1;...

  • Page 30: Connecting Zone Valves

    13. Electrical Connections (continued) 13.2 Connecting Zone Valves (SYSTEM A only) 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 31 IRING IAGRAM FOR ONNECTION TO AN ENTED YLINDER IAGRAM...
  • Page 32 IRING IAGRAM FOR ONNECTION TO AN NVENTED YLINDER IAGRAM...

  • Page 33: Commissioning And Testing

    14. Commissioning and Testing 14.1 Initial preparation efficiency of the thermic exchange because small areas MTS (GB) Limited support the initiative. In of scale cause a high increase of the temperature of the Sections 24 and 25 (pages 60 and 61) of this manual the metallic walls and therefore add to the thermal stress of Commissioning Checklist and Service Interval the heat exchanger.

  • Page 34: Adjusting The Co

    14. Commissioning and Testing (continued) has been bled from the system; 14.4 Gas Conversion - Loosen the cap on the head of the pump to eliminate any air pockets; To convert from Natural Gas (G20) to LPG (G31), it is - Repeat the procedure for bleeding the radiators of air;...

  • Page 35: External Sensor Set-Up

    14.7 External sensor set-up (where fitted) When using an outdoor sensor, the microprocessor- controlled PCB will select the most suitable flow temperature, taking into account the external temperature and the type of system. The microprocessor is capable of doing this because it is possible to establish a link between the external temperature and the flow temperature of the Central Heating system water.

  • Page 36: Operational Checks

    14. Commissioning and testing (continued) 14.10 Operational checks 14.11 Instructing the end user 1. The system must be visually checked for soundness; 1. Hand over these instructions and explain how to use the time clock and room thermostat (if fitted) and explain how 2.

  • Page 37: Fitting The Casing

    14. Commissioning and testing (continued) 24 kW 30 kW 35 kW 22.4 32.5 20.8 19.2 27.5 17.6 22.5 14.4 12.8 17.5 11.2 12.5 9 10 Fig. 44 Steps (Value P min - P max - Menu 4) 15. Fitting the casing Fitting the casing Remove the protective film on the casing;...

  • Page 38: Sequence Of Operation

    When the NTC senses that the set temperature has been achieved (+ 4°C to the temperature set by the user), the burner will go out. To avoid excessive burner lighting, an anti-cycle timer can be set between 0 to 7 minutes in menu 4 line 48 (see Section 17 Adjustments and Settings).

  • Page 39: Adjustments And Settings

    17. Adjustments and Setting The boiler is delivered with preset values described in Menus 3 and 4. All settings can be changed by the installer or a qualified person. To gain access to the setting keys please, open the front cover P (Fig. 46). Fig.
  • Page 40 DISPLAY ACTION CONFIGURATION Menu - 1 - Default register 5 ” Record the last 10 defaults Section Digit 1 Digit 2 Digits 3 and 4 Last default occured code from 01 to 99 code from 01 to 99 Last but one default occurred code from 01 to 99 x times Last default occurred before the previous...
  • Page 41 ACTION CONFIGURATION DISPLAY Menu - 3 - Boiler options once Section Digit 1 Digit 2 Digits 3 and 4 x times 0 : No Thermostatic device 1 : Yes 1 : Fitted Integral time clock 2 : Not Fitted...
  • Page 42 1 : No x times 0 to 5 min by step Pump overrun duration 0.5 min Maximum Central Heating flow 50°C to 80°C temperature by steps of 1 Minimum Central Heating flow 25°C to 50°C temperature by steps of 1...
  • Page 43 ACTION CONFIGURATION DISPLAY Menu - 5 - Combustion rate control mode Effect Display once Combustion rate control mode OFF Combustion rate control mode ON The main exchanger temperature appears on the display. The digit - on the display shows the gas output level.
  • Page 44 ACTION CONFIGURATION DISPLAY Menu - 6 - External Sensor Settings once Section Digit 1 Digit 2 Digit 3 and 4 0 : External sensor fitted External Sensor Fitted 1 : No external sensor (factory setting) x times 0 : Inactive - External Sensor not Automatic heating fitted (factory setting) adjustment active...
  • Page 45 17. Adjustments and Setting (continued) CH anti cycling delay setting : If you would like to change the setting of CH anti cycling delay to 3 mins, please proceed as follows: : the factory setting is 2 min 30 seconds and the following explanation refers to Menu 4 Section 8) NOTE Display 5 ”...

  • Page 46: Servicing Instructions

    SERVICING INSTRUCTIONS To ensure efficient safe operation, it is recommended that the boiler is serviced annually by a competent person. Before starting any servicing work, ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool.

  • Page 47: Access To The Combustion Chamber

    18.2 Access to the Combustion Chamber 18.2.1 Removing the air gas assembly 1. Carry out step 18.1.1; 3. Disconnect the detection 4. Remove the earth cable from the 2. Remove the silencer (Fig. 51); electrode cable (Fig. 52); ignition electrode (Fig. 53), and remove the ignition electrode cable from the ignitor (Fig.

  • Page 48: Removing The Burner

    18.2.2 Removing the burner 1. Carry out step 18.1.1 and 18.2.1; 3. Slide the burner out from the 4. Reassemble in reverse order, 2. Remove the 3 screws F from the front, taking care not to damage check all seals are undamaged air/gas manifold (Fig.

  • Page 49: Removing The Fan

    18.2.5 Removing the fan 1. Carry out step 18.1.1; 3. Unscrew the two screws on the 4. Unscrew the three screws K on 2. Remove the air gas manifiold as venturi J and remove with the the air/gas pipe and remove in 18.2.1 (Fig.

  • Page 50: Removing The Heat Exchanger

    18.2.7 Removing the heat exchanger 4. Unscrew the three bolts M from 5 .Remove the flow and return 1. Drain down the boiler; the main heat exchanger (Fig. pipes and the condense drain 2. Carry out step 18.1.1; 77); pipe from the heat exchanger. 3.

  • Page 51: 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 valves and open the pressure relief valve. 18.3.2 Removing the Central Heating return body 1.

  • Page 52: Removing The Pump

    18.3.3 Removing the pump 1. Carry out step 18.1.1; 6. Unscrew the pump nut (see Fig. 89); 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 the earth socket (see Fig.

  • Page 53: Removing The Domestic Expansion Vessel

    3. Remove the boiler from the wall 4. Unscrew the nut U (see Fig. 97); Fig. 94 Fig. 93 18.3.7 Removing the temperature sensors (N.T.C’s) 18.3.6 Removing the overheat thermostat 1. Remove the casing as in step 18.1.1; 1. Remove the casing as in step 18.1.1;...

  • Page 54: Removing The Pressure Gauge

    Fig. 97 Fig. 98 18.4 Access to the Control System 18.4.1 Removing the P.C.B.s 1. Carry out steps 18.1.1 and 18.1.2; 3. Release the three clips W2 and remove the 2. Remove the screw W1 from the electrical box (see electrical box cover (see Fig.

  • Page 55: Removing The Fuses

    6. To remove the display PCB, remove the two 8. To remove the main PCB disconnect all electrical screw W4 and lift the PCB out (see Fig. 103); connections and remove the two screws W5 (see 7. Reassemble in reverse order; Fig.

  • Page 56: Error Codes

    19. Error Codes In case of an error, or when the boiler has to display a message, the display flashes 2 digits. Please refer to the table below to diagnose the default. For default 01 and 03, A appears on the display, the boiler is locked and the red button lights (28). To reset the boiler press key Overheating lock out FAULT Fig.

  • Page 57: Incorrect Operation

    20. Incorrect Operaton Fault Cause Solution Check gas, water and electrical The boiler doesn’t start No gas, no water or no electricity supplies and fuses. Follow the procedure in Section 14.2 Air in the gas pipe (page 32) Room thermostat switched off Turn up the room thermostat Wait for a few minutes Press the reset button 28 (Fig.

  • Page 58: Maintenance Instructions

    21. Maintenance Instructions 21.1 General remarks 21.2 Cleaning the primary exchanger Cleaning the exhaust side It is recommended that the following inspections be carried out on the boiler at least once a year; Remove the air gas assembly (Section 18.2.1). Check that 1.

  • Page 59: Short Spares List

    61307584 GAS SECTION ASSY 61310129 GAS SECTION ASSY 61315410 GAS SECTION ASSY 61314434 FAN ASSY HYDRAULIC BLOCK 61010572 OVERHEAT THERMOSTAT 100°C 61304608 AIR SEPARATOR HEAD ASSEMBLY 61304618 GASKET KIT 61312668 PRESSURE RELIEF VALVE 61301964 PUMP + AIR SEPARATOR 15/50 61303461...

  • Page 60: Technical Data

    9 to 29 Heating output 50°C/30°C 7 to 26 9 to 32 Variable heating power PN max Nominal gas flow rate (15°C-1013 mbar) Central Heating (gas flow rate) 0.79 2.65 0.99 3.17 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

    24. Benchmark Commissioning Checklist...

  • Page 62: Service Interval Record

    25. Service Interval Record...

  • Page 64: Terms And Conditions Of Guarantee

    ERMS AND ONDITIONS OF UARANTEE Please read these terms and conditions which are in On the 12 month anniversary of the appliance addition to any terms and conditions detailed in this book installation, you must have it serviced to continue any or any registration card supplied with your appliance.

This manual is also suitable for:

System a 24 mffiSystem a 30 mffi

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