Riello TAU Unit 190 Installation And Maintenance Manual
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Riello TAU Unit 190 Installation And Maintenance Manual

Riello TAU Unit 190 Installation And Maintenance Manual

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TAU Unit 190
EN INSTALLATION AND MAINTENANCE MANUAL

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  • Page 1 TAU Unit 190 EN INSTALLATION AND MAINTENANCE MANUAL...
  • Page 2 MODEL CODE pendable, efficient and safe service and to provide comfort in TAU Unit 190 20145136 the home for many years to come. This manual provides information that is essential to the in- Accessories stallation of the appliance.

  • Page 3: Table Of Contents

    CONTENTS 1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2.7 Thermal module information .
  • Page 4 5 SYSTEM MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . .121 Communication between the thermal modules .

  • Page 5: General Information

    GENERAL INFORMATION GENERAL INFORMATION The equipment, before being connected to the hydraulic system and to the gas supply and being electrically pow- ered can be exposed to temperatures ranging between 4°C General Safety Information and 40°C. Once it is able to activate the antifreeze functions, it can be exposed to temperatures within -20°C and 40°C After removing the packaging, check the condition and We recommend cleaning inside the exchanger once a year,...

  • Page 6: Description Of The Appliance

    GENERAL INFORMATION Description of the appliance − Flue gas thermostat: placed in the lower part of the exchanger, it triggers with high flue gas temperature The condensing thermal unit TAU Unit is a hot water generator, (>75°C). with high thermal efficiency, for the heating of environments −...

  • Page 7: Identification

    Data plate This lists the technical specifications and performance of the product. Categoria: Combustibile: Combustible: Categorie: Brennstoff: Brandstof: Kategorie: RIELLO S.p.A. Via Ing.Pilade Riello 7 37045 Legnago (VR) - ITALY T067802GE NOx (PCS): η mg/kWh Cod. N° P.nom.G20= mbar Qn(min)=...

  • Page 8: System Layout

    GENERAL INFORMATION System layout Mod. 190 Control panel Electrical panel Boiler body Front panel Condensate drain siphon Ignition electrode Flame inspection window Combustion chamber pressure tap 10 Flue gas limit thermostat Gas valve 12 Detection electrode 13 Automatic bleed valve 14 Main switch 15 Central heating flow 16 High temperature system return...

  • Page 9: Technical Specifications

    GENERAL INFORMATION Technical specifications DESCRIPTION TAU Unit 190 condensing boiler for central heating Appliance type B23, B23P , B53P , C43(*), C53(*), C63(*), C83(*), C93(*) IT-CH-PT: G20=20mbar G31=37mbar FR: G20/G25 - 20/25 mbar G31=37mbar Fuel BE: G20/G25 - 20/25 mbar...

  • Page 10: Circulation Pump Sizing

    GENERAL INFORMATION DESCRIPTION TAU Unit 190 Maximum working pressure Minimum supply pressure Maximum permitted temperature °C Lockout thermostat activation temperature °C Adjustment temperature (min / max) 30/80 °C Thermal module water content Maximum condensation at 100% rated heat output (40-30°C)

  • Page 11: Location Of Sensors

    GENERAL INFORMATION Location of sensors SENSORS INSERTED IN THEIR SOCKETS IN THE BOILER: Exhaust flue probe Safety thermostat CH flow temperature sensor Return probe Flue gas limit thermostat Rear view Front view 1.10 Control panel 04:29 12.0 °C ” ” CH Setpoint 48.0 °C...

  • Page 12: Installation

    The instruction manual is an integral part of the appliance; therefore, it should be read and stored carefully. Keep the documentation envelope in a safe place. Any re- placement documents must be ordered from Riello S.p.A. who reserve the right to charge for the cost of the replace- ment.

  • Page 13: Moving And Removing The Packing

    INSTALLATION Moving and removing the packing Once you have removed the packaging, proceed as follows to position the boiler: − Pull the front panel towards you then lift it up to remove Wear suitable personal protection equipment when moving the boiler and removing the packing. Only use lifting equip- ment that is suitable for the weight involved.
  • Page 14 INSTALLATION MOVING WITH A HOIST − Remove the top panel − Unscrew the screws (1) locking the pallet (2) at the brack- ets (3). Connect the belts at the points (4) and lift the boiler using equipment suitable for the weight of the appliance.

  • Page 15: Installation Premises

    INSTALLATION 2.4.1 Recommended minimum distances With flat and smooth flooring and for small movements, the thermal unit can be slightly lifted and moved through the wheels (8). This figure shows the minimum distances that must be respect- ed to allow installation and maintenance of the boiler. The thermal module TAU Unit can be installed in rooms that are permanently ventilated and equipped with suitably sized ven- tilation openings in line with Technical Standards and Regula-...

  • Page 16: Water Connections

    TAU Unit boilers are designed and made for installation in combined central heating and domestic hot water production systems. The specifications of the water fittings are as follows. Unit of DESCRIPTION TAU Unit 190 measure- ment 1 - Central heating flow 2"...

  • Page 17: Gas Connections

    − waxes/chlorinated detergents − chemical products based on swimming pool chlorine − calcium chloride Unit of − sodium chloride use to soften tap water TAU Unit 190 measure- − refrigerant leaks ment − paint or varnish removers 1733 −...

  • Page 18: Technical Specifications Of Stack

    T section with an inspection cap to permit easy access for cleaning inside the pipe. After cleaning, always make sure that inspection caps are replaced tightly and that their seals are undamaged and efficient. Unit of TAU Unit 190 measure- ment 1215 1 - Exhaust flue duct Ø...
  • Page 19 INSTALLATION Fan in combustion circuit upstream from the combustion chamber/heat exchanger. This configuration is used in older system upgrades and with condensing boilers. It allows the system to make use of an old air well, chimney or flue that would otherwise be redundant.

  • Page 20: Preparation For The Condensate Drain

    INSTALLATION 2.8.3 Preparation for the condensate drain Following are the tables of the maximum equivalent lengths for the different available models. EQUIPMENT CONFIGURATION TYPE B “OPEN” Always maintain a slope “i” of over 3° and ensure that the Maximum equivalent length of flue gas diameter of any hose used is greater than that of the boiler’s 20(*) exhaust pipe...

  • Page 21: Neutralising The Condensate

    INSTALLATION 2.8.4 Neutralising the condensate System filling and emptying The N2 and HN2 neutralisation kits are available for condensate TAU Unit boilers require a filling pipe connected to the central neutralisation. heating circuit return pipe. N2 TYPE NEUTRALISATION KIT All the necessary circuit shut-off and drain cocks must be The N2 TYPE neutralisation units were designed for systems provided.

  • Page 22: Wiring Diagram

    INSTALLATION 2.10 Wiring diagram ⏚ L - GEN/ VLPG VLPG ⏚ P.125 L - CH (N.C.) PB/PI/VD/VC L - DHW (N.O.) / PB / PI ⏚ P.128 L - PC/PS/PI PC/PS/PI ⏚ P.187 L - ALLARM P.127 MOD 1 0 - 10V MOD 2 0 - 10V J15-1 h...
  • Page 23 INSTALLATION Low voltage legend High voltage legend Low-voltage terminal board High-voltage terminal board INAIL INAIL safety devices (accessory) Power supply (230V ~ 50Hz) Water pressure transducer (accessory) Central heating system pump Pmin VLPG Water minimum pressure switch (accessory) LPG shut-off solenoid valve (accessory) Flow-meter (accessory) Storage cylinder circulator PminG GAS minimum pressure switch (accessory)

  • Page 24: Electrical Connections

    INSTALLATION 2.11 Electrical connections The following is mandatory: − The use of an omnipolar magnetothermic switch, line Condensing thermal units TAU Unit leave the factory fully wired disconnecting switch in compliance with CEI-EN stand- and require only the connection of power cord and accessories, ards (contact opening of at least 3 mm) according to the system configuration.

  • Page 25: Modulating Circulation Pump Connection

    INSTALLATION 2.12 Modulating circulation pump connection Example of Duty cycle The regulator on the control panel can manage one modulating circulation pump (as an alternative to standard 230Vac circula- tion pumps). L - DHW (N.O.) / PB / PI Period of time ⏚...

  • Page 26: 0-10V Circulation Pump Control

    INSTALLATION 2.14 0-10V circulation pump control Speed (%) The regulator allows the control in modulating mode (0-10V) of one circulation pump (as an alternative to standard 230Vac cir- culation pumps). To enable pump control set parameter 135 = 1 and parameter 136 = Modulating.

  • Page 27: Electronic Control

    INSTALLATION 2.15 Electronic control The electronic control operator interface menu is a multi-level one. Navigation between the various levels is shown in the figures below. Level 0 displays the Home Screen (Home). Level 1 displays the Main Menu screen. The subsequent levels are activated depending on available sub-menus.

  • Page 28: Menu Structure

    INSTALLATION 2.15.1 Menu structure...
  • Page 29 INSTALLATION...
  • Page 30 INSTALLATION...
  • Page 31 INSTALLATION...
  • Page 32 INSTALLATION...
  • Page 33 INSTALLATION...

  • Page 34: Parameters' List

    INSTALLATION 2.15.2 Parameters' list The programming lines can be hidden, according to the access level (User, Installer, Manufacturer) and to the thermal unit configuration. The parameters of the Installer and Manufacturer levels should only be changed by Technical Assistance Service Parameters are listed base on the reference menu.
  • Page 35 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display Sets the value in degrees below which the Anti-cycle burner switches on again notwithstanding 0…20 °C Heating Temp. Diff. from the time spent at Par. 9. Sets the value of the temperature difference (Delta T) between the module's delivery and return temperature.
  • Page 36 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display DHW Tank Defines the hysteresis to initiate the domestic 0…20 °C Hyst. Down hot water demand. DHW Tank Defines the hysteresis to stop the domestic hot 0…20 °C Hyst.
  • Page 37 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display The value of this parameter is defined by Par. 0 = Disabled Prog Input 1 = DHW flowmeter 0…4 General 2 = DHW flow switch 3 = Heating flowmeter 4 = Heating flow switch The value of this parameter is defined by Par.
  • Page 38 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display The value of this parameter is defined by Par. 0 = Disabled 1 = General circulation pump 2 = Heating circulation pump 3 = DHW circulation pump 4 = System circulation pump Prog.
  • Page 39 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display It defines the installed PWM circulation pump model. Mod. Pump 0 = Wilo Yonos 0…2 General Type 1 = Salmson 2 = Grundfos On/Off Defines whether the boiler's circulator operates Modulating Mod.
  • Page 40 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display Dipswitch Enable or disable the dipswitch function. Enable/Disable Disable Cascade Config. Boiler demand All requests for this boiler are disabled. Yes/No Cascade disabled Activates the emergency mode. This mode comes on when communication between Permit Managing and the primary circuit's probe is...
  • Page 41 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display It defines the minimum power for at least one Next Mod- of the modules in the cascade in order for the ule Start 10…100 Cascade next module to be switched on (if the other Rate conditions linked to Par.
  • Page 42 INSTALLATION Nr. dis- Par. Default set- Access Menu played Description Range Category ting type Display Defines the integral term to change the set- PID I point of the cascade module based on the 0…1275 1000 Cascade secondary circuit's temperature. Defines the speed (in °C/100 ms) with which the set-point of individual modules is increased in PID Slew the event the secondary circuit's set-point not...

  • Page 43: Source Water Systems And Configurations

    INSTALLATION 2.16 Source water systems and configurations Diagram 1: circuit with thermal module directly connected to the heating system TA/OT VLPG(*) Isolating valve Domestic cold water inlet Non-return valve High temperature system flow Pressure reducer High temperature system return Water softener filter Thermal unit circulation pump Safety valve Outdoor sensor...
  • Page 44 INSTALLATION Electrical connections - Diagram 1 Basic parameter configuration - Diagram 1 Par. Description Parameter setting 1 = Climate mode with external probe CH mode and ambient thermostat DHW mode 0 = Disabled (*) Prog Input 2 3 = Heating flow meter (*) VLPG Prog Input 8 2 = Water pressure switch (*)
  • Page 45 INSTALLATION Diagram 1.1: circuit with thermal module directly connected to the system with two direct heating zones TA/OT MI 1 PI 1 VLPG(*) MI 2 PI 2 RI 1 RI 2 Isolating valve Domestic cold water inlet Non-return valve MI 1 First circuit system delivery Pressure reducer RI 1...
  • Page 46 INSTALLATION Electrical connections - Diagram 1.1 Basic parameter configuration - Diagram 1.1 Par. Description Parameter setting 1 = Climate mode with external probe CH mode and ambient thermostat DHW mode 0 = Disabled (*) Prog Input 2 3 = Heating flowmeter VLPG Prog Input 8 2 = Water pressure switch (*)
  • Page 47 INSTALLATION Diagram 2: circuit with thermal module directly connected to the heating system and DHW production with heater and di- verting valve TA/OT VLPG(*) Isolating valve Domestic cold water inlet Non-return valve Domestic hot water outlet Pressure reducer High temperature system flow Water softener filter High temperature system return Safety valve...
  • Page 48 INSTALLATION Electrical connections - Diagram 2 INAIL INAIL VLPG ⏚ L - CH (N.C.) L - DHW (N.O.)/PB/PI Signal ⏚ TA/OT ⏚ 0-10 V Low-voltage terminal board Minimum pressure switch High-voltage terminal board Lockout pressure switch VLPG LPG fuel shut-off valve Flow-meter (accessory) DHW diverter valve.
  • Page 49 INSTALLATION Diagram 3: circuit with thermal module directly connected to the heating system and DHW production with heater and ded- icated circulation pump TA/OT VLPG(*) Isolating valve Domestic cold water inlet Non-return valve Domestic hot water outlet Pressure reducer High temperature system flow Water softener filter High temperature system return Safety valve...
  • Page 50 INSTALLATION Electrical connections - Diagram 3 INAIL INAIL VLPG ⏚ Signal L - DHW (N.O.)/PB/PI ⏚ TA/OT ⏚ 0-10 V Low-voltage terminal board Minimum pressure switch High-voltage terminal board Lockout pressure switch VLPG LPG fuel shut-off valve Flow-meter (accessory) DHW circulator TA/OT Room thermostat / Open Therm Interface (accessory) Central heating system pump Boiler sensor...
  • Page 51 INSTALLATION Diagram 4: circuit with thermal module connected through separator to the heating system. DHW production with heater and diverting valve on primary circuit TA/OT VLPG(*) Isolating valve Domestic cold water inlet Non-return valve Domestic hot water outlet Pressure reducer High temperature system flow Water softener filter High temperature system return...
  • Page 52 INSTALLATION Electrical connections - Diagram 4 Basic parameter configuration - Diagram 4 Par. Description Parameter setting 1 = Climate mode with external probe CH mode and ambient thermostat DHW mode 1 = Water heater with probe VLPG DHW Priority 2 = On (*) ⏚...

  • Page 53: Commissioning And Maintenance

    COMMISSIONING AND MAINTENANCE 3 COMMISSIONING AND MAINTENANCE 3.2.2 Date and time setting Press the MENU key and select "Settings" with the ▲ / ▼ keys Preparing for initial startup Menu It is essential to perform the following checks before starting up “...

  • Page 54: Password Access

    COMMISSIONING AND MAINTENANCE Press the ● key to confirm. By accessing the "Time Zone Setttings" menu, it is possible to set the time zone parameter as shown in the figure below: − The system will now ask you to enter a password (the password is required for thermal module settings only): Time Zone Settings Password...
  • Page 55 COMMISSIONING AND MAINTENANCE After the selection, use the ► key to highlight the value and use Mode 1 the ▲ / ▼ keys to change the selected value. Press the ● key to (Climatic functioning with room/heat demand thermostat, vari- confirm/save the new settings..
  • Page 56 COMMISSIONING AND MAINTENANCE Parameter 190 (installer level) Enter the "CH" menu. The following display will appear: Each building has its own thermal characteristics, therefore the time needed to set up the heating system can differ even Central Heating (CH) among buildings located in the same area, with the same exter- “...
  • Page 57 COMMISSIONING AND MAINTENANCE Mode 2 Mode 3 (Working on climatic mode with attenuation controlled by a (Continuous fixed set-point operation with attenuation con- room/heat demand thermostat, variable set point according to trolled by room/heat demand thermostat) the outdoor temperature) In this mode the fixed set-point is adjusted in the same way In this case the thermal module operates with a set-point de- as described for Mode 0.
  • Page 58 COMMISSIONING AND MAINTENANCE Mode 4 Mode 5 (Set-point adjustment based on a 0-10V analogical input) (Adjusting the power based on an analogue input 0-10V) In this operating mode, the power of the thermal unit (fan The parameters that control this mode are the following: speed) is adjusted by an incoming analogue signal supplied by an external management system.

  • Page 59: Setting The Domestic Hot Water Parameters

    COMMISSIONING AND MAINTENANCE 3.2.5 Setting the domestic hot water parameters − Use the ► key to highlight the value, and use the ▲ / ▼ keys to change the selected value. Press the ● key to con- The parameter 35 defines the various operation modes of the firm/save the new settings..

  • Page 60: Scheduled Programme

    COMMISSIONING AND MAINTENANCE 3.2.6 Scheduled programme Priority setting The parameter 42 sets the priorities between the DHW and CH The Scheduled Programme is designed to program the opera- circuit. tion of the various circuits managed by the thermal module, (CH, Four modes are envisaged: DHW and additional mixed zones).
  • Page 61 COMMISSIONING AND MAINTENANCE ECO set-point ECO temperature. Adjustable temperature that can be used out- Select Ext. Zones in Group side set periods (5 – 20 °C). “ ” External Zone Disabled Set-points outside the interval “ ” “ ” “ ”...
  • Page 62 COMMISSIONING AND MAINTENANCE Holiday setting Seasonal setting Enables the user to change parameters for the Seasonal Pro- gramme. Holiday Settings The seasonal programme is used to define a period of inactivity “ ” Mode Group for the heating system. This menu includes the following ele- “...

  • Page 63: Thermal Module Information

    COMMISSIONING AND MAINTENANCE 3.2.7 Thermal module information Boiler History “ ” In order to display key information on the screen, press the Successful Ignitions menu key and select "Information" with the ▲ / ▼ keys. “ ” Failed Ignitions “ ”...

  • Page 64: Flow Meter Parameters Configuration (Accessory)

    Choose the flow meter to be installed according to the ΔT of op- eration of the thermal module. Take extreme care when doing this so as not to damage the components. TAU Unit 190 ∆T = 20°C DN 32 − Check the full stop of the thermal module and the heat ∆T = 15°C...

  • Page 65: Error List

    COMMISSIONING AND MAINTENANCE Error List − Power the thermal module by setting the system's and the appliance's master switches to "On". When a display has a technical fault, a numeric error code ap- − Press the MENU key, select "System test" and press ● to pears that will enable the maintenance operator to identify the confirm.

  • Page 66: Temporary Errors

    COMMISSIONING AND MAINTENANCE 3.4.2 Temporary Errors 3.4.3 Warnings Error Description Error Description Cascade system: the burner of the WD_ERROR_RAM Internal software error managing module has lost the CC_LOSS_COMMUNI- WD_ERROR_ROM Internal software error signal of one of the depending CATION WD_ERROR_STACK Internal software error thermal module burner WD_ERROR_REGISTER...

  • Page 67: Conversion From One Type Of Gas To The Other

    COMMISSIONING AND MAINTENANCE Conversion from one type of gas to the other After installing the kit, check the tightness of all connections made. The boiler TAU Unit is delivered set up to operate with G20 (methane gas), however it can be converted to operate with the If all conditions are met, power the thermal module positioning following gases: the main switch of the system and of the equipment to “on”.

  • Page 68: Parameter Configuration For Changing The Type Of Gas Used

    COMMISSIONING AND MAINTENANCE 3.5.1 Parameter configuration for changing the type of gas used By changing the value of parameter 98 the settings of parameters 123, 125 and 128 will return to factory settings. TAU Unit 190 Par. 97 Par. 98 Par. 92 Par.

  • Page 69: Adjustments

    “ ” Fan Speed “ ” “ ” Ionisation 0.0 μA “ ” − the appliance will operate at maximum power. − unscrew the cap (1) and insert the combustion analyser sensor Gas type TAU Unit 190 8,9/9,1 8,9/9,1 9,9/10,1...
  • Page 70 − Adjust the CO2 using a TORX wrench on the adjustment Ionisation 0.0 μA screw (3) on the valve, so as to obtain a value listed in “ ” the table. Going clockwise the CO2 diminishes, going an- ti-clockwise the CO2 increases.. Gas type TAU Unit 190 8,9/9,1 8,9/9,1 9,9/10,1...

  • Page 71: Temporary Or Short-Term Shut-Down

    COMMISSIONING AND MAINTENANCE Temporary or short-term shut-down 3.8 Preparing for extended periods of disuse In the event of temporary or short-term shut-down (e.g. due to Long periods of inactivity of the thermal module TAU Unit imply holidays), proceed as follows: the following operations to be carried out: −...

  • Page 72: Cleaning And Maintenance

    COMMISSIONING AND MAINTENANCE Cleaning and maintenance and selecting "Maintenance" using the ▲ / ▼ arrows It is essential to clean the boiler and remove carbon deposits Information from the surfaces of the heat exchanger in order to keep the “ ”...

  • Page 73: Lifting Combustion Chamber Closing

    COMMISSIONING AND MAINTENANCE 3.10 Lifting combustion chamber closing − Turn the chamber (7) until the slot (B) is aligned with the bolt (8) The cover of the combustion chamber is raised by a hydraulic system that also rotates it out of the way and holds it steady while you perform the necessary maintenance.

  • Page 74: Removing The Burner

    COMMISSIONING AND MAINTENANCE 3.10.1 Removing the burner It is essential to respect the dimensions in the figure. Proceed as follows to remove the burner: − Remove the top panel of the appliance − Open the top front panel − Unscrew the screws (1) sealing the gas supply pipe from the gas valve (2) −...

  • Page 75: Boiler Exchanger Cleaning

    COMMISSIONING AND MAINTENANCE 3.10.3 Boiler exchanger cleaning 3.10.4 Condensate drain siphon cleaning After raising the combustion chamber as described in the par- − Remove the front panel from the boiler and locate the agraph “Lifting combustion chamber closing”, proceed as fol- condensate discharge syphon (1) lows: −...

  • Page 76: Troubleshooting

    COMMISSIONING AND MAINTENANCE 3.11 Troubleshooting FAULT CAUSE SOLUTION Flame not detected − Call Technical Assistance Service The burner performs pre-ventilation and ignition correctly but shuts down after about 5 attempts No gas supply − Check gas valve opening Flue blocked −...

  • Page 77: Configuration Of Cascaded Thermal Units

    CONFIGURATION OF CASCADED THERMAL UNITS 4 CONFIGURATION OF CASCADED THERMAL UNITS The primary sensor is required in order to manage the cascade setpoint and is essential for managing the thermal modules as a single generator. The DHW and heating circuits must be completed with ex- pansion vessels of a suitable capacity and correctly sized TA/OT/SE/0-10V relief valves.

  • Page 78: Configuration Of The Secondary System

    CONFIGURATION OF CASCADED THERMAL UNITS Configuration of the secondary system For the sake of simplicity, the hydraulic circuits downstream of the separator can be identified as the secondary system. Optimal use of the modules in cascade occurs by placing a hy- The basic configuration of the secondary system takes place draulic separator (available as an accessory) between the pri- using a system circulator (PI).
  • Page 79 CONFIGURATION OF CASCADED THERMAL UNITS − Zone sensor (S2) This is required to adjust and control an additional direct zone managed by the “Depending” thermal unit in combination with the zone pump (P2). The zone sensor (S2) and the pump (P2) must be connected to the “Depending” thermal unit, which communicates via Bus with the "Managing"...

  • Page 80: Typical Water System Schematics And Configuration Of Cascaded Thermal Units

    CONFIGURATION OF CASCADED THERMAL UNITS Typical water system schematics and configuration of cascaded thermal units 4.3.1 Block diagram 1 Cascaded thermal units with single pump for each thermal unit and system and cascade sensors. Management of a DHW circuit with two direct zones and a mixed zone, with electronic zone management device (ZM). TA/OT P2 2 TA/OT...

  • Page 81: Electrical Connections - Diagram 1

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.2 Electrical connections - Diagram 1 MANAGING CONNECTIONS PI (*) P.125 = 2 INAIL P. 123 = 2 INAIL L - DHW (N.O.)/PB/PI P.128 = 3 23 +5V P. 117 = 3 P.187 = 1 SIGNAL TA/OT P.
  • Page 82 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "PB Configuration" with the Configuration ▲ / ▼ keys S1 = OFF (not used) (189) Burner Address = Managing Settings " " Boiler Settings " " Clock Settings "...
  • Page 83 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select the correct "Managing" ad- DEPENDING CONNECTIONS 1 (Dep. 2) dress from those displayed using the ▲ / ▼ keys Module Cascade Settings INAIL " " P.123 = 2 INAIL (189) Burner Address Managing...
  • Page 84 CONFIGURATION OF CASCADED THERMAL UNITS Configuration S1 = OFF (not used) VLPG (189) Burner Address = Dep. 2 (1° Module Depending) P.125 (*) P.128 = 16 L - DHW (N.O.)/PB/PI P.187 = 1 High-voltage terminal board VLPG LPG fuel shut-off valve Zone 2 pump (high temperature) Thermal unit circulation pump Live...
  • Page 85 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ DEPENDING CONNECTIONS 2-8 (Dep. 3 ÷ Dep. 9) / ▼ keys Settings INAIL " " Boiler Settings  P.123 = 2 INAIL " "...
  • Page 86 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ / Configuration ▼ keys S1 = OFF (not used) (189) Burner Address = Dep. 3 ÷ Dep. 9 (2° ÷ 8° Module Depending) Settings "...
  • Page 87 CONFIGURATION OF CASCADED THERMAL UNITS For further information see section "System management". ZONE MANAGEMENT ELECTRONIC DEVICE managing BUS 1 terminals Zone management electronic device Live Neutral Earth/ground Zone 3 pump (low temperature) Mixer valve zone 3 Zone 3 sensor Room thermostat BUS 1 Managing / Zones Bus...

  • Page 88: System Parameters Block Diagram 1

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.3 System parameters Block diagram 1 Configuration S1 = OFF (not used) (189) Burner Address = Managing See the section "Commissioning and maintenance" for a Configuration of boiler parameters detailed description on parameter operation Par. Description Parameter setting MANAGING...
  • Page 89 CONFIGURATION OF CASCADED THERMAL UNITS DEPENDING 1 (DEP. 2) DEPENDING 2-8 (DEP. 3 ÷ DEP . 9) Functions: Functions: − Reads the secondary circuit sensor (SC) − Controls thermal unit pump (PC) − Controls thermal unit pump (PC) − Controls the pump in a DEPENDENT direct zone (P2) with Programmable outputs and inputs parameter configuration (*) the zone sensor (S2), with the consent of TA/OT (room (If Par.

  • Page 90: Block Diagram 2

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.4 Block diagram 2 Cascaded thermal units with two-way valve for each thermal unit, system pump, and system and cascade sensors. Management of a DHW circuit, of a direct zone and a mixed zone with electronic zone management device (ZM). TA/OT P1 2 1 DEP.

  • Page 91: Electrical Connections - Diagram 2

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.5 Electrical connections - Diagram 2 MANAGING CONNECTIONS PB (*) INAIL P.125 = 2 P.123 = 2 INAIL L (N.C.) P.128 = 1 L (N.O.) P.117 = 3 SIGNAL P.187 = 4 P.188 = 1 P.122 = 3 BUS 1 High-voltage terminal board...
  • Page 92 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "PB Configuration" with the Configuration ▲ / ▼ keys S1 = OFF (not used) (189) Burner Address = Managing Settings " " Boiler Settings " " Clock Settings "...
  • Page 93 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select the correct "Managing" ad- DEPENDING CONNECTIONS 1 (Dep. 2) dress from those displayed using the ▲ / ▼ keys INAIL Module Cascade Settings " " P.123 = 2 INAIL (189) Burner Address Managing...
  • Page 94 CONFIGURATION OF CASCADED THERMAL UNITS Configuration S1 = OFF (not used) VLPG (189) Burner Address = Dep. 2 (1° Module Depending) P. 125 (*) L (N.C.) P. 128 = 1 L (N.O.) P. 187 = 16 High-voltage terminal board Set the main switch of the system to ON and ONLY the main VLPG LPG fuel shut-off valve switch of the thermal module to be configured to (I).
  • Page 95 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ DEPENDING CONNECTIONS 2-8 (Dep. 3 ÷ Dep. 9) / ▼ keys INAIL Settings P.123 = 2 " " INAIL Boiler Settings  " "...
  • Page 96 CONFIGURATION OF CASCADED THERMAL UNITS Configuration Confirm with the ● key and select "Boiler settings" with the ▲ S1 = OFF (not used) / ▼ keys (189) Burner Address = Dep. 3 ÷ Dep. 9 (2° ÷ 8° Module Depending) Settings "...
  • Page 97 CONFIGURATION OF CASCADED THERMAL UNITS For further information see section "System management". ZONE MANAGEMENT ELECTRONIC DEVICE managing BUS 1 terminals 7 e 8 Zone management electronic device Live Neutral Earth/ground Zone 2 circulator (low temperature) Mixer valve zone 2 Zone 2 sensor Room thermostat BUS 1 Managing / Zones Bus...

  • Page 98: System Parameters Block Diagram 2

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.6 System parameters Block diagram 2 Configuration S1 = OFF (not used) (189) Burner Address = Managing See the section "Commissioning and maintenance" for a Configuration of boiler parameters detailed description on parameter operation Par. Description Parameter setting MANAGING...
  • Page 99 CONFIGURATION OF CASCADED THERMAL UNITS DEPENDING 1 (DEP. 2) DEPENDING 2-8 (DEP. 3 ÷ DEP . 9) Functions: Functions: − Reads the secondary circuit sensor (SC) − Controls thermal unit two-way valve (V1) − Controls thermal unit two-way valve (V1) −...

  • Page 100: Block Diagram 3

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.7 Block diagram 3 Cascaded thermal units with single pump for each thermal unit and system and cascade sensors. Management of a DHW circuit with two direct zones and a mixed zone, with electronic zone management device (ZM). TA/OT P1 2 1 TA/OT...
  • Page 101 CONFIGURATION OF CASCADED THERMAL UNITS MANAGING CONNECTIONS VLPG INAIL P.123 = 2 INAIL P. 125 = 8 L - DHW (N.O.)/PB/PI P. 128 = 3 P.117 = 3 SIGNAL P. 187 = 1 P.188 = 1 P.122 = 3 High-voltage terminal board BUS 1 VLPG LPG fuel shut-off valve depending 1...
  • Page 102 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "PB Configuration" with the Configuration ▲ / ▼ keys S1 = OFF (not used) (189) Burner Address = Managing Settings " " Boiler Settings " " Clock Settings "...
  • Page 103 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select the correct "Managing" ad- DEPENDING CONNECTIONS 1 (Dep. 2) dress from those displayed using the ▲ / ▼ keys Module Cascade Settings " " INAIL (189) Burner Address Managing P.123 = 2 "...
  • Page 104 CONFIGURATION OF CASCADED THERMAL UNITS Configuration S1 = OFF (not used) (189) Burner Address = Dep. 2 (1° Module Depending) VLPG P.125 = 8 L - DHW (N.O.)/PB/PI P.128 = 16 P.187 = 1 High-voltage terminal board VLPG LPG fuel shut-off valve Set the main switch of the system to ON and ONLY the main Zone 1 pump (high temperature) switch of the thermal module to be configured to (I).
  • Page 105 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ DEPENDING CONNECTIONS 2-8 (Dep. 3 ÷ Dep. 9) / ▼ keys Settings INAIL " " Boiler Settings  P.123 = 2 INAIL " "...
  • Page 106 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ Configuration / ▼ keys S1 = OFF (not used) (189) Burner Address = Dep. 3 ÷ Dep. 9 (2° ÷ 8° Module Depending) Settings "...
  • Page 107 CONFIGURATION OF CASCADED THERMAL UNITS For further information see section "System management". ZONE MANAGEMENT ELECTRONIC DEVICE managing BUS 1 terminals Zone management electronic device Live Neutral Earth/ground Zone 3 pump (low temperature) Mixer valve zone 3 Zone 3 sensor Room thermostat BUS 1 Managing / Zones Bus...

  • Page 108: System Parameters Block Diagram 3

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.8 System parameters Block diagram 3 Configuration S1 = OFF (not used) (189) Burner Address = Managing See the section "Commissioning and maintenance" for a Configuration of boiler parameters detailed description on parameter operation Par. Description Parameter setting MANAGING...
  • Page 109 CONFIGURATION OF CASCADED THERMAL UNITS DEPENDING 1 (DEP. 2) DEPENDING 2-8 (DEP. 3 ÷ DEP . 9) Functions: Functions: − Reads the secondary circuit sensor (SC) − Controls thermal unit pump (PC) − Controls thermal unit pump (PC) − Controls the pump in a DEPENDENT direct zone (P2) with −...

  • Page 110: Block Diagram 4

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.9 Block diagram 4 Cascaded thermal units with two-way valve for each thermal unit, system pump, and system and cascade sensors. Management of a DHW circuit with two direct zones and a mixed zone, with electronic zone management device (ZM). TA/OT P1 2 1 TA/OT...

  • Page 111: Electrical Connections - Diagram 4

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.10 Electrical connections - Diagram 4 MANAGING CONNECTIONS PB (*) P.125 = 3 INAIL P.123 = 2 INAIL L (N.C.) P.128 = 1 L (N.O.) P.117 = 3 P.187 = 4 SIGNAL P.188 = 1 P.122 = 3 High-voltage terminal board DHW circulator...
  • Page 112 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "PB Configuration" with the Configuration ▲ / ▼ keys S1 = OFF (not used) (189) Burner Address = Managing Settings " " Boiler Settings " " Clock Settings "...
  • Page 113 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select the correct "Managing" ad- DEPENDING CONNECTIONS 1 (Dep. 2) dress from those displayed using the ▲ / ▼ keys Module Cascade Settings INAIL " " P.123 = 2 INAIL (189) Burner Address Managing...
  • Page 114 CONFIGURATION OF CASCADED THERMAL UNITS Configuration S1 = OFF (not used) VLPG (189) Burner Address = Dep. 2 (1° Module Depending) P. 125 = 8 L (N.C.) P. 128 = 1 L (N.O.) P. 187 = 16 High-voltage terminal board VLPG LPG fuel shut-off valve Thermal unit two-way valve Set the main switch of the system to ON and ONLY the main...
  • Page 115 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ DEPENDING CONNECTIONS 2-8 (Dep. 3 ÷ Dep. 9) / ▼ keys Settings " " INAIL Boiler Settings  P.123 = 2 INAIL " "...
  • Page 116 CONFIGURATION OF CASCADED THERMAL UNITS Configuration S1 = OFF (not used) (189) Burner Address = Dep. 3 ÷ Dep. 9 (2° ÷ 8° Module Depending) VLPG P. 125 = 8 L (N.C.) P. 128 = 1 L (N.O.) P. 187 = 16 High-voltage terminal board VLPG LPG fuel shut-off valve Thermal Module...
  • Page 117 CONFIGURATION OF CASCADED THERMAL UNITS Confirm with the ● key and select "Boiler settings" with the ▲ For further information see section "System management". / ▼ keys ZONE MANAGEMENT ELECTRONIC DEVICE Settings " " Boiler Settings  " " Clock Settings "...

  • Page 118: System Parameters Block Diagram 4

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.11 System parameters Block diagram 4 Configuration S1 = OFF (not used) (189) Burner Address = Managing See the section "Commissioning and maintenance" for a Configuration of boiler parameters detailed description on parameter operation Par. Description Parameter setting MANAGING...
  • Page 119 CONFIGURATION OF CASCADED THERMAL UNITS DEPENDING 1 (DEP. 2) DEPENDING 2-8 (DEP. 3 ÷ DEP . 9) Functions: Functions: − Reads the secondary circuit sensor (SC) − Controls thermal unit two-way valve (V1) − Controls thermal unit two-way valve (V1) −...

  • Page 120: Adjusting Setpoint

    CONFIGURATION OF CASCADED THERMAL UNITS 4.3.12 Adjusting setpoint Adjusting setpoint with sensor on primary circuit (SS) Through setting the following parameters you can manage automatically decreasing/increasing the setpoint, if necessary, based on the value detected by the primary circuit sensor (SS). The setpoint will be decreased/increased after the time set in Par. 81 has elapsed.

  • Page 121: System Management

    SYSTEM MANAGEMENT 5 SYSTEM MANAGEMENT After switching the appliance on, the display shall look as shown in the figure below: Communication between the thermal 04:29 modules 12.0 °C Communication between all the modules installed is a funda- ” ” mental aspect in a system with multiple thermal modules. CH Setpoint 48.0 °C...
  • Page 122 SYSTEM MANAGEMENT Select "Boiler settings" using the ▲ / ▼keys Then set the total number of units/modules (1÷15) using ▲ / ▼ keys Settings Module Cascade Settings " " Boiler Settings  " " " " (77) Hyst. Down Start Module 5.0 °C ...
  • Page 123 SYSTEM MANAGEMENT After switching the appliance on, the display shall look as shown Check that the "Dipswitch Config." menu is configured as in the figure below: "Disabled" Press the ESC key repeatedly to return to the MAIN screen and 04:29 wait for at least 30 seconds Switch off the thermal module by setting the main switch to (0).
  • Page 124 SYSTEM MANAGEMENT After switching the appliance on, the display shall look as shown Check that the "Dipswitch Config." menu is configured as in the figure below: "Disabled" Press the ESC key repeatedly to return to the MAIN screen and 04:29 wait for at least 30 seconds 12.0 °C...

  • Page 125: Bus Connections

    SYSTEM MANAGEMENT Bus connections MANAGING Identify the terminal boards located beside the controller. The bus connections are to be made on the low voltage terminal board (M01). 10 11 12 13 14 15 16 17 18 Thermal module terminal board BUS 1 DEPENDING 10 11 12 13 14 15 16 17 18...

  • Page 126: Zone Control With Depending Module

    SYSTEM MANAGEMENT 5.2.1 Zone control with Depending module The electronic control of the thermal module will automatically check which zones are connected to the bus. If used on a cascade system, with heating zone control using DEPENDING thermal module, after carrying out the connections The zone menu headings in the thermal unit electronic con- as described in the Cascade Manual, the following modifications trol will be available on the managing display menu, when 1 or...

  • Page 127: Setting Depending Zone Parameters

    SYSTEM MANAGEMENT Setting depending zone parameters Controls interface 255x80 point backlit display (106,4x39,0mm) RESET key: restores normal operations after a safety shut-down MENU key: switches on the main menu ESC key: in menu navigation, it enables you to exit a menu item and go back to the previous 5 ÷...

  • Page 128: Menu Structure

    SYSTEM MANAGEMENT 5.4.1 Menu structure Level 0 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Home / Menu Information Dependent Zone Status Dependent Zone 2 - 16 Zone Setpoint ” ” “ ” “ ”...

  • Page 129: Setting Zone's Climatic Curve Parameters (Accessible Only With Installer Password)

    SYSTEM MANAGEMENT Setting zone's climatic curve parameters 5.6 Programming the zone (accessible only with installer password) By default the schedule timer is disabled. Menu → “Settings” → “Zone Clim. Curve” To start up a request from the zone, just close the zone request contact.

  • Page 130: Scheduling The Time Bands

    SYSTEM MANAGEMENT The programmable periods for each zone are 7 and they can be Entering in “Program Comfort Period”: selected by changing the number that appears beside “Program Confort period”. Dependent Zone Period Group " " " " " " Program Comfort Period Active Day(s) Monday-Sunday...

  • Page 131: Electronic Control

    SYSTEM MANAGEMENT Electronic control For further information on the electronic control, refer to the specific section in the user manual of the individual appliance TAU Unit. switches on the main menu in menu navigation, it enables you to exit a menu item and go back to the previous one supports selecting menus or parameters or decreasing nu- meric values...

  • Page 132: Setting The Main Parameters

    SYSTEM MANAGEMENT 5.9.1 Setting the main parameters 5.9.5 General operation Some parameters are essential in order for the system to operate With cascade operation the managing unit regulator sets a set- in cascade and setting these parameters is a determining factor point to send to the depending units.

  • Page 133: Parameter 148: Operating Mode Of The Cascade

    SYSTEM MANAGEMENT 5.12 Parameter 148: operating mode of the 5.12.1 Par 148 = 1 cascade Not applicable It is possible to adopt cascade management which can be mod- 5.12.2 Par 148 = 2 ified according to different strategies. These different strategies can be set using the parameter known as "Cascade mode"...

  • Page 134: Managing Additional Zone

    MANAGING ADDITIONAL ZONE 6 MANAGING ADDITIONAL ZONE Jumper positioning example. Check zone with zone management Jumpers electronic device optional If you need to check an additional heating zone (direct or mixed) other than those allowed by the system configuration, it is pos- sible to install the ZONE CONTROL ELECTRONIC DEVICE optional.
  • Page 135 MANAGING ADDITIONAL ZONE The electronic control of the thermal module will automatically check which zones are connected to the bus. The menu items of the zone in the electronic control of the ther- mal module will be available when one or more zone manage- ment devices are detected.

  • Page 136: Setting Parameters Of The Additional Zone

    MANAGING ADDITIONAL ZONE Setting parameters of the additional zone Controls interface 255x80 point backlit display (106,4x39,0mm) RESET key: restores normal operations after a safety shut-down MENU key: switches on the main menu ESC key: in menu navigation, it enables you to exit a menu item and go back to the previous 5 ÷...

  • Page 137: Menu Structure

    MANAGING ADDITIONAL ZONE 6.3.1 Menu structure Level 0 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Home / Menu Information External Zone Status External Zone 1 - 16 Zone Setpoint ” ” “ ” “...

  • Page 138: Setting Zone's Climatic Curve Parameters (Accessible Only With Installer Password)

    MANAGING ADDITIONAL ZONE 6.4 Setting zone's climatic curve parameters 6.5 Programming the zone (accessible only with installer password) By default the schedule timer is disabled. Menu → “Settings” → “Zone Clim. Curve” In fact, to start a request from the zone just close the contact of the zone request.

  • Page 139: Scheduling The Time Bands

    MANAGING ADDITIONAL ZONE 6.6 Scheduling the time bands The programmable periods for each zone are 7 and they can be selected by changing the number that appears beside “Program Confort period”. By going to: Menu → “Clock program” → “Zones CH Program ” The “Comfort Setpoint”...

  • Page 140: Information On The Operation Of The Zone

    MANAGING ADDITIONAL ZONE Information on the operation of the zone The information displayed is the following: Error code Description By going to: Indicates the error code of the board (255 = no Menu → “Information” → “Zone Status” error) Indicates whether there is a request (namely, if External Zone Status Input Heat the contact for the heat request is open (NO, no...

  • Page 141: System Manager

    SYSTEM MANAGER SYSTEM MANAGER 7 SYSTEM MANAGER − Switch the system's master switch to the ON position and the thermal module's master switch to (I). Putting into service The appliance must be maintained and adjusted at least once a year by Technical Assistance Service or by profession- ally qualified staff in compliance with all applicable Nation- al and Local provisions.

  • Page 142: Temporary Or Short-Term Shut-Down

    SYSTEM MANAGER SYSTEM MANAGER Temporary or short-term shut-down − close the fuel valves and the water valves of the thermal and DHW system. In the event of temporary or short-term shut-down (e.g. due to holidays), proceed as follows: − Press the MENU key and select with keys ▲ / ▼ "Time schedule", confirm with key ●.

  • Page 143: Useful Information

    SYSTEM MANAGER SYSTEM MANAGER Useful information Seller: ................Installer: ................Mr.: .................. Mr.: .................. Address: ................Address: ................Tel.: .................. Tel.: .................. Technical Assistance Service: ..........Mr.: .................. Address: ................Tel.: .................. Date Work done Fuel oil supplier: ............... Mr.: .................. Address: ................

  • Page 144: Modbus Connection

    SYSTEM MANAGER MODBUS CONNECTION 8 MODBUS CONNECTION Registers Depending on the type of Modbus device used to connect to The thermal mode is equipped with a Modbus connection the thermal module, the registers' addressing may start from (based on the RS485 communication standard) that supports 0x0000 or 0x0001.
  • Page 145 SYSTEM MANAGER MODBUS CONNECTION Status parameters Dependent information Access Access Automatic Register Automatic Value Register Descrip- Description conver- Value range number conversion range number tion sion See "State" State Dependent 01 table See "State" See "Sta- State Status table tus" table See "Error"...
  • Page 146 SYSTEM MANAGER MODBUS CONNECTION Parameters registers Access Automatic Register Descrip- Access Auto- conver- Value range number tion Register matic Value sion Description Note number conver- range Dependent 09 sion See "State" Heating State table mode (Par. 0..x See "Error" Error code tables DHW mode 0..x...
  • Page 147 SYSTEM MANAGER MODBUS CONNECTION Auto- Access Auto- Register matic Value Register matic Access Description Note Description Value range number conver- range number conver- sion sion Minimum Service re- 0...1 (1=re- 1540 value that minder reset set) can be pends 0= burner assigned to Setting the on °C/°F...

  • Page 148: Water In Central Heating Systems

    SYSTEM MANAGER WATER IN CENTRAL HEATING SYSTEMS 9 WATER IN CENTRAL HEATING SYSTEMS 2. Central heating systems INTRODUCTION Do not use automatic filling devices to add water to central heating systems. Use a manual device instead and record Water used in central heating systems MUST be suitably treated top-ups in the system service book.
  • Page 149 SYSTEM MANAGER WATER IN CENTRAL HEATING SYSTEMS 4. Eliminating air and gas from central heating systems If oxygen enters a circuit continuously or even intermittently (e.g. in under-floor heating systems whose pipes are not pro- tected by impermeable synthetic sheaths, in circuits with open expansion vessels, or in circuits that require frequent top-ups) always separate the boiler’s water circuit from the central heat- ing circuit.

  • Page 150: Recycling And Disposal

    SYSTEM MANAGER RECYCLING AND DISPOSAL 10 RECYCLING AND DISPOSAL The device is primarily composed of: Material Component Metal materials Pipework, boiler body ABS (acrylonitrile-butadiene-styrene) Control panel enclosure Glass wool felt Boiler body insulation Electrical and electronic components Cables and wiring, controller At the end of the device's useful life, these components must be separated and disposed of according to current regulations in the country of installation.
  • Page 151 SYSTEM MANAGER SYSTEM MANAGER...
  • Page 152 RIELLO S.p.A. Via Ing. Pilade Riello, 7 37045 - Legnago (VR) www.riello.com The manufacturer strives to continuously improve all products. Appearance, dimensions, technical specifications, standard equipment and accessories are therefore liable to modification without notice.

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