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Riello TAU 35 UNIT Installation And Maintenance Manual

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TAU 35 UNIT
EN INSTALLATION AND MAINTENANCE MANUAL

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Summary of Contents for Riello TAU 35 UNIT

  • Page 1 TAU 35 UNIT EN INSTALLATION AND MAINTENANCE MANUAL...
  • Page 2 − Energy Labelling Directive 2010/30/EU − Delegated Regulation (EU) N. 811/2013 − Delegated Regulation (EU) N. 813/2013 RANGE MODEL FUEL CODE TAU 35 UNIT Methane - LPG 20101210 ACCESSORIES For a complete list of accessories and details of their compatibility, refer to the Catalogue.
  • Page 3 Used in conjunction with your own knowledge and expertise it will enable you to install the appliance quickly, easily, and correctly. Once again, please accept our thanks and our congratulations on your choice of product. Riello S.p.A.

  • Page 4: Table Of Contents

    CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 General safety information .

  • Page 5: General

    − Close the fuel shut-off cock. − Report the fault immediately to your local RIELLO Do not expose the boiler to the elements. Do not in- Technical Assistance Service or a professionally stall the boiler outdoors. It is not designed to work qualified heating engineer.

  • Page 6: Product Description

    GENERAL 1 .3 Product description This TAU UNIT condensing boiler is designed to produce The control system applies compensated control logic to hot water for central heating systems. If used in conjun- maximise energy recovery in all seasons. The combu- ction with a remote storage cylinder, it can also produce stion gases are cooled to a temperature near that of the domestic hot water.

  • Page 7: Identification

    − Serial number plate This specifies the serial number, model, and furnace power. RIELLO S.p.A. Via Ing.Pilade Riello 7 37045 Legnago (VR) - ITALY Mod. Qn(max) Cod. Pn(max) N°...

  • Page 8: Layout

    GENERAL 1 . 7 Layout Control panel Front panel CH pump CH expansion vessel Boiler body CH circuit drain cock Condensate drain siphon Condensate drain pipe Flue gas exhaust fitting 10 Comburent air intake fitting Cover panel 12 Pressure switch (for combustion chamber) 13 Automatic vent valve 14 Safety valve (3 bar) 15 Sensor sockets...

  • Page 9: Technical Specifications

    GENERAL 1 .8 Technical specifications MODELS TAU 35 UNIT condensing boiler for central heating Device type C13-C33-C43-C53 Fuel G20-G31 Device category II 2H3P Maximum rated heat input at furnace referred to HVC (LCV) 38,6 (34,8) Minimum rated heat input at furnace referred to HVC (LCV)

  • Page 10: Water Circuit

    GENERAL 1 . 9 Water circuit Boiler body Gas valve Burner Automatic vent valve Safety valve (3 bar) Temperature sensor sockets CH pump Non-return valve 10 CH expansion vessel CH circuit drain cock 12 Condensate drain siphon 13 Flue gas exhaust pipe 14 Air intake pipe First direct zone flow Second direct zone flow...

  • Page 11: Positioning The Temperature Sensors

    GENERAL 1 . 1 0 Positioning the temperature sensors SENSORS INSERTED IN THEIR SOCKETS IN THE BOILER: CH flow temperature sensor Safety thermostat temperature sensor Control temperature sensor Flue gas temperature sensor Flue gas thermostat IMPORTANT: LEAVE THE SENSORS IN THEIR ORIGINAL POSITIONS EVEN IF THE BOILER IS CONFIGURED FOR USE IN A CASCADED SYSTEM .

  • Page 12: Pump

    GENERAL 1 . 1 1 Pump TECHNICAL SPECIFICATIONS DESCRIPTION ERP ready 2015 Electrical consumption EEI Part 3 (*) ≤ 0,20 P L,Avg (**) ≤ 24 Minimum pressure at pump suction inlet Energy efficiency index according to ERP 2015 (Commission regulations 641/2009 and 622/2012) (**) Average annual electricity consumption according to ERP 2015 (Commission regulations 641/2009 and 622/2012) PUMP CURVE...
  • Page 13 GENERAL ADJUSTING THE PUMP The storage cylinder pump conforms to the 2015 ERP Di- rective. The pump is suitable for use in central heating/ Display Meaning % power domestic hot water applications and can function with LED 1 green and LED 2 Low load 0-25 4 different head curves.
  • Page 14 GENERAL Display Meaning Function Action LED 1 red and LED 5 yellow, The pump rotor is The pump automatically attempts Wait or check that the both lit blocked. to start every 1.5 seconds. pump rotor is free to ro- tate. LED 1 red and LED 4 yellow, Supply voltage too Indication only.

  • Page 15: Wiring Diagram

    GENERAL 1 . 1 2 Wiring diagram BOILER CONTROL PANEL Pcaldaia Fan - PWM SCH2 SCH1 X40-5 OCI420 X50-5 M1 M2 M3 AGU2.5 Treg X30-14 X30-1/14 AGU2.3 FILTRO 6.3A 230 Vac Fan-PWM Room thermostat (low voltage, 24V) Fuse 6.3 A-T Main switch Mains filter Treg...
  • Page 16 GENERAL Connection scheme for added accessories SCH4 Clip-in communication card MB-LPB DB-LPB SCH3 SCH5 NTC/10K NTC 10K SCH3 RVS control card (**) SCH4 Room unit control card SCH5 Mixed zone interface card (clip-in) Additional mixed zone pump Mixer valve for additional zone CH flow temperature sensor for additional mixed zone (**) Refer to the instructions provided with your card for details on how to connect it to the RVS unit.

  • Page 17: Control Panel

    GENERAL 1 . 1 3 Control panel CONTROL PANEL AND SYMBOLS 11 12 13 Burner lockout indicator DHW mode selector (for use with remote storage cylinder: accessory) Central heating or room temperature setting key DHW temperature setting key (for use with remote storage cylinder: accessory) Reset key.
  • Page 18 GENERAL DISPLAY Water pressure reading (not used) Large numeric display Displays current value . Chimney sweep or Service Required symbol Display symbols: v DHW temperature or DHW mode active r CH or room temperature setpoint, or CH mode active c Outdoor temperature Daytime CH mode Night-time CH mode Flame detected...
  • Page 19 GENERAL MAIN SCREEN Functioning mode. Press the key to activate the various modes, as shown by the line under the corresponding symbol. DHW mode. Press the key to activate and deactivate DHW mode. Daytime CH mode Time of day Current boiler temperature Water pressure (not used) Flame detected Current time bar...

  • Page 20: Programming Levels

    GENERAL 1 . 1 4 Programming levels There are three programming levels: − End user − Installer − Manufacturer. You must follow a precise set of instructions to access any of these levels. The relevant instructions, complete with a list of the keys to press, are provided in the tables below. END USER LEVEL This level provides the parameters needed by the end user.
  • Page 21 GENERAL INSTALLER LEVEL Parameters in this level must only be changed by personnel from ’s Technical Assistance Service. This level contains, among others, parameters for selecting the slope of the central heating 1 curve and setting the DHW reduced temperature setpoint (if an optional remote storage cylinder is connected). See the “Complete list of parameters”...

  • Page 22: Information Levels

    GENERAL Explanation Press one of these keys until you reach the parameter you require. The example here shows the parameter Oxxx. Press these keys to change the current value. To memorise the new value, you need to move on to another parameter . Press one of these keys to exit the manufacturer programming level.
  • Page 23 GENERAL Functioning phases (table 1) Displayed Description Standby Ignition prevented Fan start Pre-ventilation Wait time Pre-ignition time Safety time, constant Safety time, variable Central heating mode Domestic hot water mode Simultaneous CH and DHW mode Post-ventilation with last control used Post-ventilation at pre-ventilation level Home run (*) Burner lockout (error code displayed)
  • Page 24 GENERAL EXTENDED INFORMATION LEVEL 2: process values Press the key. Press and hold both keys for at least 3 seconds. Press the key. Press one of the keys until you reach the parameter you require. Process values Description Reserved Ionisation current Fan speed Fan control current (PWM) Relative boiler heat output...

  • Page 25: Installer

    INSTALLER 2 INSTALLER 2 . 1 Unpacking the product The boiler is delivered on a wooden pallet, suitably packed and protected by a wooden crate. Check im- mediately that there is no damage and that the boi- ler is exactly as ordered. The product specifications are shown on the outside of the packing: model, power, equipment, fuel type.

  • Page 26: Dimensions And Weight

    INSTALLER 2 .3 Dimensions and weight TAU 35 UNIT 1365 Weight 2 .4 Handling Proceed as shown to move and handle the boiler in the boiler room: − Pull the front panel towards you then lift it up to remove it.

  • Page 27: Place Of Installation

    INSTALLER 2 .5 Place of installation This TAU 35 UNIT boiler can be installed in any indoor location provided the flue gases are adequately remo- When installing the boiler, allow sufficient space ved and comburent air drawn in from outdoors. Pro-...

  • Page 28: Water In Heating Circuits

    INSTALLER 2 . 7 Water in heating circuits INTRODUCTION Water used in central heating systems MUST be suitably Always conform to the standards and legislation treated to ensure the correct functioning of those sy- applicable in the country of installation. stems and to guarantee an extended working life for boilers and all other system components.
  • Page 29 INSTALLER CENTRAL HEATING SYSTEMS CORROSION 3.1 Deposit corrosion Do not use automatic filling devices to add water to central heating systems. Use a manual device inste- Deposit corrosion is an electro-chemical phenomenon ad and record top-ups in the system service book. caused by the presence of foreign bodies (sand, rust, etc.) in the water mass.

  • Page 30: Water Connections

    TAU UNIT boilers are designed and made for installation in combined central heating and domestic hot water produc- tion systems. The water fittings have the following specifications: 68 120 TAU 35 UNIT 1285 1 Central heating flow 2 Central heating return 1"...
  • Page 31 INSTALLER TYPICAL WATER SYSTEM SCHEMATICS TAU UNIT: basic configuration DIRECT CIRCUIT COLD WATER TAU UNIT: configuration with accessory kit installed DIRECT CIRCUIT MIXED CIRCUIT COLD WATER Isolating valve High temperature heating system user points Softener filter Pressure reducer Drain Low temperature heating system user points...

  • Page 32: Draining The Condensate

    INSTALLER 2 . 9 Draining the condensate Always maintain a slope “i” of over 3° and ensure that the diameter of any hose used is greater than that of the boiler’s own condensate drain pipe . i≥3° The connection to the waste water drain must be made in compliance with national and local legi- slation and standards.

  • Page 33: Condensate Neutralisation Unit

    INSTALLER 2 . 1 0 Condensate neutralisation unit NEUTRALISATION UNIT TYPE N2 N2 neutralisation units are designed for systems with boiler condensate drain pits located at a lower level than the boiler condensate drain fitting. These neutra- lisation units do not require any electrical connections. Q .ty of granu- Dimensions Ø...
  • Page 34 INSTALLER The inlet fitting (A) of the HN2 neutralisation unit (the lower fitting) must be connected to the boiler conden- sate drain fitting using the flexible hose (C) supplied. This condensate drain hose is specially made to prevent combustion fumes escaping into the atmosphere. The outlet fitting (B) of the neutralisation unit (the top 1,5 m fitting) must be connected to the boiler room’s waste...

  • Page 35: Gas Connection

    On completion of the installation, check that all joints are sealed. TAU 35 UNIT 1290 Gas fitting Ø 1/2” M 2 . 1 2 Ch frost protection TAU UNIT condensing boilers are equipped with an elec- tronic frost protection system.

  • Page 36: Flue Gas Vent And Comburent Air Intake

    INSTALLER 2 . 1 3 Flue gas vent and comburent air intake TAU UNIT boilers are sealed boilers belonging to classes C13, C23, C33, C43, C53, C63 and C83. The boiler room does not therefore require air vents. The boiler room never- theless does require safety vents for use with gas fuels (METHANE and LPG).

  • Page 37: Electrical Connections

    INSTALLER 2 . 1 4 Electrical connections TAU UNIT condensing boilers are fully wired in the fac- tory. Only the following electrical connections remain to be made: − mains electricity supply; ROTATE − room thermostat; − outdoor temperature sensor; − storage cylinder pump (if relevant). Proceed as follows to make these connections: −...

  • Page 38: Sensor Connections

    INSTALLER 2 . 1 5 Sensor connections Proceed as follows to access the control panel terminal strip. − Unscrew the screws (5) and rotate the control pa- nel (2) outwards ROTATE − Route the connection cables through the cable grommets in the rear of the control panel and the slots inside the front of the panel.

  • Page 39: Outdoor Sensor Connections

    INSTALLER 2 . 1 6 Outdoor sensor connections Correct positioning of the outside temperature sensor is essential to proper indoor climate control. The sensor must be installed outside the building to be heated, about 2/3 of the way up a NORTH or NORTH-WEST facing wall, well clear of any flues, doors, windows and out of direct sunlight.

  • Page 40: Filling And Draining The System

    INSTALLER 2 . 1 7 Filling and draining the system TAU 35 UNIT boilers require a filling pipe connected to the central heating circuit return pipe. CLOSED FILLING THE SYSTEM − Make sure that the boiler’s central heating drain cock (1) is closed before you start filling the sy- stem.

  • Page 41: Technical Assistance Service

    TECHNICAL ASSISTANCE SERVICE 3 TECHNICAL ASSISTANCE SERVICE 3 . 1 Preparing for initial start-up It is essential to perform the following checks before starting up or testing the functioning of the boiler. − Check that the water and fuel shut-off cocks are open.
  • Page 42 TECHNICAL ASSISTANCE SERVICE − Set the room thermostat to the desired tempe- rature (20°C). − Press the key: − If an outdoor temperature sensor is con- nected, set the room temperature setpoint − If no outdoor temperature sensor is con- nected, set the central heating circuit tempe- rature setpoint.

  • Page 43: Checks During And After Initial Start-Up

    TECHNICAL ASSISTANCE SERVICE 3 .3 Checks during and after initial start-up Once the boiler has started up, make sure that it shuts down and re-starts properly when: − The central heating temperature setpoint is changed (see page 50) − The control panel is switched OFF −...

  • Page 44: Temporary Shutdown

    TECHNICAL ASSISTANCE SERVICE 3 .4 Temporary shutdown If you are going to be away for a short period of time like a weekend or a short holiday, etc. proceed as follows: − Press and hold the key until the bar (1) appe- ars under "Stand-by"...

  • Page 45: Calibrating Combustion Parameters

    TECHNICAL ASSISTANCE SERVICE 3 .6 Calibrating combustion parameters TAU 35 UNIT boilers are calibrated in the factory for G20/ G25 20/25 mbar. If actual combustion parameter values differ from those given in the tables below, contact ’s Technical As- sistance Service.
  • Page 46 CO , clockwise to increase Once the adjustments are complete, the combustion parameters should be as specified in the tables below. values for functioning at MINIMUM POWER TAU 35 UNIT 9,15 9,90 − Press to return to normal functioning mode.

  • Page 47: Setting Functioning Parameters

    TECHNICAL ASSISTANCE SERVICE 3 . 7 Setting functioning parameters If an outdoor temperature sensor is connected, the controller uses the heating curve to generate the CH flow tempera- ture setpoint, thus enabling the boiler to maintain a constant room temperature even without the use of a room unit. The steeper the slope of the heating curve, the higher the flow temperature setpoint at low outdoor temperatures (see Manufacturer parameter 532).
  • Page 48 TECHNICAL ASSISTANCE SERVICE Compound outdoor temperature is calculated from effective outdoor temperature and attenuated outdoor tempe- rature. It is calculated at 10 minute intervals on the basis of effective outdoor temperature and directly determines Summer/Winter mode switching (par. 516). Attenuated outdoor temperature °C Outdoor temperature Attenuated outdoor...
  • Page 49 TECHNICAL ASSISTANCE SERVICE SETTING CENTRAL HEATING PARAMETERS − Press the − With an outdoor temperature sensor con- nected, set the room temperature setpoint. This setting affects the shifting of the he- ating curves (see the second figure on page"Attenuated outdoor temperature" a pagina 48).

  • Page 50: Error Codes

    TECHNICAL ASSISTANCE SERVICE 3 .8 Error codes TEMPORARY ERROR DISPLAY − If a temporary error occurs, the display alterna- tes between displaying the time display and the error code. − Press the key to display the error code on the main display. −...
  • Page 51 TECHNICAL ASSISTANCE SERVICE PERMANENT ERROR DISPLAY − If a permanent error occurs, the error code flashes on the main display. The controller per- forms a safety shutdown. Example: E154. − Press the key to display the error code on the main display. −...
  • Page 52 TECHNICAL ASSISTANCE SERVICE ERROR TABLE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA No input code No input code No input code No input code Message Outdoor temperature Short circuit in outdoor Check/replace outdoor Message sensor error temperature sensor...
  • Page 53 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Burner lockout CH return sensor 1 Return temperature sen- (permanent). Check/replace tempera- error sor (B7) faulty Lockout reset re- ture sensor quired Burner lockout CH return sensor 1 (permanent).
  • Page 54 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Room unit waiting to Check/replace room Room unit 1 error write to write-protected Message unit, room temperature parameter sensor Check connection Room unit 1 or timer to room unit/timer- Connection error Message...
  • Page 55 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Burner lockout Electronic device (permanent). Contact Technical Assi- Hardware error errors Lockout reset re- stance Service quired Electronic device Room thermostat input Contact Technical Assi- Message errors...
  • Page 56 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Burner lockout Safety thermostat (permanent). Circuit open: check con- Circuit open tripped (SLT) Lockout reset re- nections quired Safety thermostat Maximum temperature SLT thermostat tripped: Safety shutdown tripped (SLT)
  • Page 57 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Check the gas supply No flame during fun- Flame failure during fun- Safety shutdown and gas valve status; ctioning ctioning check the burner Burner lockout Check the gas supply No flame during fun-...
  • Page 58 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Check the flue gas vent; TaAbschal parameter check the temperatu- Flue gas temperature (flue gas temperatu- Safety shutdown re sensor; check the threshold exceeded re threshold for boiler burner;...
  • Page 59 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Can be a Mes- sage or a Safety Shutdown or Internal control board Software error or internal Contact Technical Assi- a (permanent) error error stance Service...
  • Page 60 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA OEM parameter not edi- table via QAA. Generic error. Check the system. Generic error dT is > dTkTrSTB + 16K Safety shutdown The temperature diffe- rential in the boiler is excessive...
  • Page 61 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA Burner lockout Air pressure switch Air pressure switch con- (permanent). Check the air pressure contacts not closed tacts not closed Lockout reset re- switch.
  • Page 62 TECHNICAL ASSISTANCE SERVICE Error Diagnostic code Description of error Type of fault System action Procedure info via QAA OEM parameter not Drift test has exceeded editable via QAA. Contact Software error programmed limit W2 Message Technical Assistance (656) Service Chimney sweep fun- Chimney sweep function Check whether chimney Message...

  • Page 63: Complete List Of Parameters

    TECHNICAL ASSISTANCE SERVICE 3 . 9 Complete list of parameters LIST OF END USER LEVEL PARAMETERS Default N° Description Range Time of day 0…23.59 h/min Setpoints 5 (*) Line 5 will be hidden when using an additional room unit: Reduced room temperature setpoint 10…30 °C Reduced boiler temperature setpoint...
  • Page 64 TECHNICAL ASSISTANCE SERVICE Default N° Description Range setting DHW reduced setpoint 20…setpoint DHW °C DHW program 0=DHW time program 1=24h/24h PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING THG= Automatic Summer/Winter switching temperature 8…30...
  • Page 65 TECHNICAL ASSISTANCE SERVICE LIST OF MANUFACTURER LEVEL PARAMETERS Default N° Description Range setting Minimum room temperature setpoint 10…30 °C Parameter only active if an outside temperature sensor is connected Maximum room temperature setpoint 10…30 °C Parameter only active if an outside temperature sensor is connected PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL...
  • Page 66 TECHNICAL ASSISTANCE SERVICE Default N° Description Range setting Parameter with 8 bits (= b7b6b5b4b3b2b1b0) b0=PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING b1=Type of building 0/1=light/heavy b2=Connect probe/thermostat kettle b2 = 1-------> Thermostat kettle (*) b2 = 0-------> Kettle sensor b3=PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING b4=PARAMETER FIXED IN THIS MODEL...
  • Page 67 TECHNICAL ASSISTANCE SERVICE LPB section PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL 12,5 DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL 77,0 DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL 3200 DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL 1300...
  • Page 68 TECHNICAL ASSISTANCE SERVICE PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 1st past value of lockout code counter 1st past value of lockout phase 1st past value of internal diagnostic code 2nd past value of lockout code counter...

  • Page 69: Conversion From One Gas Type To Another

    TECHNICAL ASSISTANCE SERVICE 3 . 1 0 Conversion from one gas type to another The TAU 35 UNIT boiler comes configured for use with G20 (methane) gas. The boiler can also be converted for Conversions must only be performed by qualified use with G31 gas (LPG) using the conversion kit provided.
  • Page 70 TECHNICAL ASSISTANCE SERVICE − Apply the adhesive label (6) for G31 gas (supplied with the conversion kit) inside the boiler casing and remove the old G20 gas label. On completion of kit installation, check the tightness of all the joints made.

  • Page 71: Maintenance

    TECHNICAL ASSISTANCE SERVICE 3 . 1 1 Maintenance Regular maintenance is a legal requirement. It is also essential for the safety, efficiency and durability of the On completion of maintenance, the original settings boiler. Proper maintenance keeps consumption and must be restored and combustion fumes analysed emissions down, and ensures that the boiler continues to verify correct functioning.

  • Page 72: Positioning The Electrodes

    TECHNICAL ASSISTANCE SERVICE 3 . 1 3 Positioning the electrodes Correct positioning of the ignition electrode and flame detection sensor is essential for efficient ignition and combustion. With the burner removed, verify the state of wear and the positioning of the ignition electrode and flame de- tection sensor according to the figure below.

  • Page 73: Troubleshooting

    TECHNICAL ASSISTANCE SERVICE 3 . 1 5 Troubleshooting FAULT CAUSE SOLUTION Flame not detected − Call Technical Assistance The burner performs pre-venti- lation and ignition correctly but shuts down about 5 attempts No gas supply − Make sure gas shut-off cock is open Flue blocked −...
  • Page 74 TECHNICAL ASSISTANCE SERVICE FAULT CAUSE SOLUTION − Check that all joints are tight and that There is a smell of gas Leaks from the supply circuit the pressure measurement points are closed − Check that the boiler body is clean −...
  • Page 75 RIELLO S.p.A. 37045 Legnago (VR) Tel. 0442630111 - Fax 044222378 - www.riello.it As part of the company’s ongoing commitment to perfecting its range of products, the appearance, dimensions, technical data, equipment and accessories may be subject to variation.

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