Ariston GENUS 27 PLUS Installation Instructions Manual
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Ariston GENUS 27 PLUS Installation Instructions Manual

Ariston GENUS 27 PLUS Installation Instructions Manual

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Installation Instructions
Type C Boilers
G.C.N:
47-116-11
LEAVE THESE INSTRUCTIONS
WITH THE END USER
Country of destination: GB
400

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  • Page 1 Installation Instructions Type C Boilers G.C.N: 47-116-11 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination: GB...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS GENERAL INFORMATION 1.1 General Instructions 1.2 Overall View INSTALLATION 2.1 Reference Standards 2.2 Siting the Appliance 2.3 Overall Dimensions 2.4 Clearances 2.5 Mounting the Appliance 2.6 Electrical Connection 2.7 Gas Connection 2.8 Water Connections 2.9 Flue Connection 2.10 Room Thermostat Connection 2.11 Electrical/System Diagrams 2.12 Water Circuit Diagrams...

  • Page 3: General Information

    This manual is an integral and essential part of 1. GENERAL the product. It should be kept with the appliance INFORMATION so that it can be consulted by the user and our authorised personnel. Please carefully read the instructions and notices about the unit contained in this manual, as they provide important information regarding the safe installation, use and maintenance of the product.

  • Page 4: Overall View

    6 - With reference to point 4, dismantle and clean the injectors if necessary. 7 - Visual check of the primary heat exchanger: - check for overheating of the exchangers fins; - clean the exhaust side of the exchanger and fan if necessary. 8 - Regulate the gas pressure, ignition pressure, partial flame, maximum flame.

  • Page 5: Installation

    INSTALLATION The technical information and instructions provided herein below are intended for the installer so that the unit may be installed correctly and safely. WATER REGULATIONS Reference Standards These regulations ensure a good supply of wholesome water, and that only approved materials, pipes and fittings are used to convey water.

  • Page 6: Overall Dimensions

    Fig. 2.1 Fig. 2.1 Overall Dimensions Legend: A = Central Heating Return (3/4”) B = Central Heating Flow (3/4”) C = Gas Inlet (3/4”) D = Domestic Hot Water Outlet (1/2”) E = Secondary return (1/2”) F = Domestic Cold Water Inlet (1/2”) Clearances In order to allow for access to the interior of the boiler for maintenance purposes, the boiler must be installed in compliance with the clear-...

  • Page 7: Gas Connection

    unswitched shuttered socket outlet both complying with BS 1363. The point of connection to the Electricity supply must be readily accessible and adja- cent to the appliance unless the appliance is installed in a bathroom when this must be sited outside the bathroom. The local gas region contractor connects the gas meter to the service pipe.
  • Page 8 Discharge pipework 1) The tundish must be installed directly below the discharge outlet connection of the boiler. The tundish must also be in a position visible to the occupants, and positioned away from any electrical devices. The discharge pipe from the tundish should termi- nate in a safe place where there is no risk to persons in the vicinity of the discharge and to be of metal.
  • Page 9 Air Release Points: These must be fitted at all high points where air naturally collects and must be sited to facilitate complete filling of the system. The appliance has an integral sealed expansion vessel to accommodate the increase of water value when the system is heated. It can accept up to 7 l (1.5 gal) of expansion water.

  • Page 10: Flue Connection

    Flue Connections Flue System The provision for satisfactory flue termination must be made as described in BS 5440-1. The appliance must be installed so that the flue terminal is exposed to outdoor air. The terminal must not discharge into another room or space such as an outhouse or lean-to.
  • Page 11 This procedure must be done as follows: 1 - Remove the air vent intake in the area indicated in Fig. 2.9, by breaking the perforated ring. 2 - Use a tool to grasp the lid and remove it completely. 3 - Clean any burrs or sharp edges with a knife or an appropriate tool.

  • Page 12: Room Thermostat Connection

    2.10 Room Thermostat In order to perform this procedure, remove the boiler casing as indicated in section 3.2. Then proceed as follows: Connection 1 Rotate down the control panel. 2 Open the cover “A” on the left hand side of the compartment. 3 Insert the wire for the connection of the room thermostat into the cable clamp “B”, as indicated in photo 3.

  • Page 13: Electrical Diagram

    2.11 Electrical Diagram Heating D.H.W. + D.H.W. Flue Test Heating operating modes Legend: AT = High Voltage P.C.B. BT = Low Voltage P.C.B. Remote Connector Kit Flame Failure L.E.D. A01 = Air Pressure Switch Insufficient Water Pressure L.E.D. A02 = Water Temperature Indicator L.E.D.s A03 = Gas Valve...

  • Page 14: Water Circuit Diagrams

    2.12 Water Circuit Diagram 21 20 Legend: Air Pressure Switch Main Heat Exchanger Ignition Electrodes and Detection Electrodes Burner Gas Valve Spark Generator Automatic air release valve Circulation Pump Motorised Valve with by-pass 10. Main Circuit Flow Switch 11. Safety Valve (3 bar) 12.

  • Page 15: Commissioning

    COMMISSIONING MTS (GB) Limited support the initiative. Within the information pack you will find a copy of the logbook. It is important that this is completed in the presence of your customer, they are shown how to us it, and it is signed by them. Please instruct your customer that they must have their logbook with them whenever they contact a Initial Preparation...

  • Page 16: Control Panel

    Control Panel Legend: A Ignition Faliure Reset/Safety Thermostat Reset B L.E.D. for Ignition Faliure C Selector Knob for Summer/Winter/ Flue Test Modes D L.E.D. for Insufficient System Pressure E Domestic Hot Water Temperature Control F Central Heating Temperature Indicating Leds G L.E.D.

  • Page 17: Combustion Analysis

    ting for which can range from the minimum thermal power to the maximum: 5 mbar G30-31 19 mbar - the potentiometer for the maximum thermal power for the heating system, maxi- mum thermal power setting (factory set at the maximum value, unless indicated oth- erwise on the adhesive sticker located in proximity to the potentiometer);...

  • Page 18: Draining The System

    Draining the System Draining the heating system. The heating system must be emptied as follows: - Turn off the boiler; - Open the drain valve for the system and place a container below to catch the water that comes out; - Empty the system at the lowest points (where present).

  • Page 19: Maintenance

    It is recommended that the following checks be made on the boiler at least MAINTENANCE once a year: 1 - Check the seals for the water connections; replacement of any faulty seals. 2 - Check the gas seals; replacement of any faulty gas seals. 3 - Visual check of the entire unit.

  • Page 20: Technical Information

    TECHNICAL INFORMATION GENUS 27 BFFI PLUS CE Certification 29.8/12.0 Thermal Capacity max/min kW 27.4/10.3 Thermal Power max/min kW 92.1 Efficiency of Nominal Thermal Capacity Efficiency at 30% of Nominal Thermal 88.8 Capacity Heat Loss to the Shell (∆=50°C) Flue Heat Loss with Burner Operating Flue Heat Loss with Burner Off 56.9 Maximum Discharge of Fumes (methane)
  • Page 21 Servicing Instructions Type C Boilers G.C.N: 47-116-11 LEAVE THESE INSTRUCTIONS WITH THE END USER...
  • Page 22 TABLE OF CONTENTS 1. SERVICING INSTRUCTIONS 1.1 Replacement of Parts 1.2 To Gain General Access 1.2.1 Removing the front panel 1.2.2 Removing side panels 1.2.3 Removing the control panel door 1.3 Access to the Combustion Chamber 1.3.1 Removing the sealed chamber front cover 1.3.2 Removing the combustion cover 1.3.3 Removing the burner and injectors 1.3.4 Removing the electrodes...

  • Page 23: Servicing Instructions

    1. SERVICING INSTRUCTIONS 1.2 To Gain General Access To ensure efficient safe operation, it is recommended that the boil- All testing and maintenance operations on the boiler require the er is serviced annually by a competent person. control panel to be lowered. This will also require the removal of the casing.

  • Page 24: Removing Side Panels

    1.2.2 Removing the side panels: 1.3 Access to the Combustion Chamber 1. Remove the screws “B” lift outward at the base and then lift off the locating lugs(see fig. 1.3); 1.3.1 Removing the sealed chamber front cover 1. Remove the screws “D” (see fig. 1.5) Fig.

  • Page 25: Removing The Burner And Injectors

    1.3.3 Removing the burner and the injectors 1.3.4 Removing the electrodes 1. Undo the nut “G” of the gas pipe (see fig. 1.7) ; 1. Remove the burner (see fig.1.10); 2. Lift up the main burner to free the main gas 2.

  • Page 26: Removing The Main Heat Exchanger

    1.3.5 Removing the main heat exchanger 1.3.6 Removing the air pressure switch 1. Drain the boiler of water; 1. Remove screws “L” on the top of the sealed cham- ber (see fig. 1.17); 2. Release the connection nut “I” connecting the 2.

  • Page 27: Removing The Fan

    1.3.7 Removing the fan 1. Remove the screws “M” (see fig. 1.19); 2. Remove the collar for flue discharge (see fig. 1.20); 3. Disconnect electrical connections ”N”, the silicone pipe “O” and remove screw “P” (see fig.1.21); 4. Pull fan and remove (see fig.1.22); Fig.

  • Page 28: Servicing And Removal Of The Gas Valve

    1.4 Servicing and Removal of the Gas Valve 1.4.1 Setting gas pressures Setting the minimum and the maximum power of the boiler VG001Aa 1. Check that the supply pressure to the gas valve is a minimum of 20 mbar for natural gas. 2.
  • Page 29 Regulating the heating power for natural gas (G20) CG003A Regulating the heating power for butane gas (G30) CG002A Regulating the heating power for propane gas (G31) CG003A TABLE “A” GENUS 27 BFFI PLUS TB002A...

  • Page 30: Removing The Spark Generator

    1.4.2 Removing the spark generator 1. Disconnect ignition leads “Q” by pulling upwards (see fig. 1.23); 2. Remove the screw “R” (see fig. 1.24) with a Pozidrive No. 2 star tip screwdriver; 3. Remove the spark generator by pulling forwards (see fig. 1.25);...

  • Page 31: Removing The Gas Valve

    1.4.3 Removing the gas valve 1.5 Access to the Water Circuit Important. ensure gas supply to boiler is turned off. Important! Before any component is removed, the boil- er must be drained of all water. Removing the gas valve 1.5.1 Removing the “main circuit flow switch” 1.

  • Page 32: Removing The Safety Valve

    1.5.3 Removing the safety valve 1.5.5 Removing the pump 1. Remove electrical connectione “A1” 1. Remove the pump pressure switch (see fig. 1.34). (see section 1.5.2) 2. Disconnected the two nuts “A2” (see fig. 1.34); 2. Loosen nut “Y” disconnect the safety discharge 3.

  • Page 33: Removing The Expansion Vessel

    1.5.7 Removing the domestic expansion vessel 1.5.8 Removing the overheat thermostat 1. Remove the electrical connector from the over- Important. Turn off the domestic cold water and heat thermostat (see fig. 1.41); drain the storage cylinder. 2. Pull off the thermostat connections. Then remove 1.

  • Page 34: Removing The D.h.w. Probe

    1.5.10 Temperature and pressure relief valve 1.5.11 Removing the D.H.W. probe 1. Ensure electricity is switched off at main isolator; This operation is possible with boiler fully assembled. 2. Drain domestic water from cylinder; The D.H.W. probe access, is at the bottom right side 3.

  • Page 35: Removing The Diverter Valve

    1.5.12 Removing the diverter valve 1.6.2 Removing the time clock 1. Remove the circlip and pull the diverter valve to 1. Remove electrical connections “A7” of the clock the left. (see fig. 1.51); (see fig. 1.48); 2. Unscrew the screws “A8” and remove (see fig. 2.

  • Page 36: Removing The P.c.b.s

    1.6.3 Removing the P.C.B.s Fig. 1.51 1. Isolate electricity; 2. Remove the front cover of the boiler; 3. Remove both left and right inspection panels by remove the screws “A9” (see fig. 1.51); 4. Remove the pressure gauge cover; 5. Remove the five screws retaining the facia panel; 6.

  • Page 37: Fault Finding

    2. FAULT FINDING 1.7 Fault finding guide (flow-chart) It is possible to detect and correct any defect by using the standard fault finding diagrams described in this chapter PRELIMARY CHECKS MAKE SURE THAT: 1 - There is sufficient water in the system 2 - The gas is turned on 3 - The electrical supply is...
  • Page 38 DOES THE CIRCULATION PUMP COME ON? POWER TO THE PUMP? DOES THE INSUFFICIENT WATER INDICATOR LIGHT COME 1 - Check wiring ON? (within 2 - Check/replace wire to 40 sec.) 1 - Check if there is air in the pump from PCB system 3 - Replace power supply 2 - Check main circuit flow switch...
  • Page 39 IS THE FAN RUNNING? BOILER 1 - Reset the boiler SHUTDOWN? 1 - Check/replace different pressure switch for pump 2 - Check/replace wiring PUMP PROTECTION 3 - Check/replace P.C.B. wire ACTIVATED? 4 - Check/replace power supply PCB 5 - Check/replace control PCB 1 - Check/replace air INTERNAL pressure switch/wiring...
  • Page 40 1 - Check flue discharge 2 - Check venturi & small pipes IS THE 3 - Check wire for air press.switch AIR PRESSURE SWITCH 4 - Check/replace air press.switch ACTIVATED? 5 - Check/replace PCB wire 6 - Check/replace power PCB 7 - Checl/replace control PCB 1 - Check/replace igniter plugs 2 - Check wiring...
  • Page 41 THERE STILL A PROBLEM? FUNCTIONS NORMALLY LIST OF PROBLEMS POSSIBILE CAUSES Delivery of hot water for domestic use: - air in secondary heat exchanger when the tap is turned on, the bumer - faulty main circuit flow switch goes out. - faulty D.H.W.

  • Page 42: Electric Diagrams

    3. ELECTRIC DIAGRAMS Selector TCS2 Legend: Link for Continuous Pump Run AT = High Voltage P.C.B. A01 = Air Pressure Switch BT = Low Voltage P.C.B. A02 = A03 = Gas Valve Remote Connector Kit A05 = Motorised Valve Flame Failure L.E.D. A06 = Circulation Pump Insufficient Water Pressure L.E.D.

  • Page 43: Short Spare Parts List

    4. SHORT SPARE PARTS LIST GENUS 27 BFFI PLUS 21 22 23 24 33 34 36 37 Code 998799 Code 573127 Code 998099 MODELS CHARACTERISTICS SERIAL NO: REF. VALIDITY GENUS 27 BFFI PLUS METHANE 2320010200001 GENUS 27 BFFI PLUS 2320010200001 - 2 - ES001A...
  • Page 44 GENUS 27 BFFI PLUS G.C. part ARISTON Description Part No. 573435 379816 Main exchanger 573520 Gasket 3/4" 572625 Main burner (natural gas) 572626 Main burner (LPG) 997089 Gas valve (SIT 845 SIGMA) 574233 Spark generator 574279 Gasket 997147 Motor 3-way valve...
  • Page 45 Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: http://www.mtsgb.ltd.uk E-mail: info@mtsgb.ltd.uk Technical Service Hot Line: (01494) 539579 23 99 84 1518 111...
  • Page 46 Users Manual...
  • Page 47 Dear Customer, Thank you for choosing an ARISTON boiler. We guarantee that your boiler is a reliable and technically sound product. This User’s Manual provides detailed instructions and recommendations for proper installation, use and maintenance. Remember to keep this manual in a safe place for future reference i.e. by the gas meter.
  • Page 48 1. GENERAL MTS (GB) Limited support the initiative. Your installer will give you, and show you how to use, a logbook which will give you important INFORMATION information about your boiler, and heating system. Please have this logbook to hand whenever you contact a service engineer or us. All CORGI Registered Installers carry a CORGI ID card, and have a registration number.
  • Page 49 CAUTION 2. OPERATING Installation, start-up, adjustments and maintenance must be INSTRUCTIONS performed by a competent person only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions provided. Improper installation may cause damage or injury to individuals, animals and personal property, for which the manufacturer will not be held liable.
  • Page 50 does not light within the pre-set safety time limit, the red “B” L.E.D. will light up. To reset the ignition system, the reset button “A” must be pressed. Should the system fail to light a second time, check to make sure that the gas cock is open.

  • Page 51: Adjusting The Heating Temperature

    Installation with a room thermostat: - Turn the “C” selector knob to < >; - Turn on the power supply to the boiler by pressing the On/Off switch ”L”; the green L.E.D. will then turn on; - Turn the thermostat knob “H” to the highest temperature setting. - With this type of installation, the boiler is controlled by a room thermostat UT008Af...

  • Page 52: Shutdown Procedure

    SHUTDOWN PROCEDURE To turn off the main burner, simply press the On/Off switch “L”; the green L.E.D. “I” will also turn off. As a precautionary measure, it is recommended that the gas cock located on the bottom of the boiler be turned off as well. UT008Aa 3.
  • Page 53 Automatic Manual Continuous Operation Operation Operation = ON = ON = Continuously ON = OFF = OFF = Continuously OFF The switching If the current You can only times corres- switching mode is return to automatic pond to the changed manually, mode from the program the next switching...
  • Page 54 Reading the programmed switching times Pressing the “Prog” key displays the programmed switching times until the first free memory location appears in the display “– – : – –”. If you now press the “Prog” key once again, the number of free memory Iocations will be displayed, e.g.

  • Page 55: Boiler Shutdown

    4. USEFUL INFORMATION AND TROUBLESHOOTING BOILER SHUTDOWN The boiler unit is equipped with safety devices which intervene in certain situations to shutdown the boiler. Some of these situations are signalled by the unit and can be corrected by the user. SHUTDOWN DUE TO THE FAILURE OF THE BURNER TO LIGHT AUTOMATICALLY This anomaly is indicated by the red “B”...
  • Page 56 FLUE TEST FEATURE (only for authorised personnel) The “C” Summer/Winter/Flue Test selector knob can be set to < > to bypass temperature adjustment on the heating circuit for the purpose of analysing the fumes produced by combustion. To access this mode, open a water tap or taps so that the flow rate is no less than 8 litres per minute.
  • Page 57 Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: http://www.mtsgb.ltd.uk E-mail: info@mtsgb.ltd.uk Technical Service Hot Line: (01494) 539579...

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