Robur G 30 Instructions For Installation, Use And Maintenance Manual
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Robur G 30 Instructions For Installation, Use And Maintenance Manual

Gas unit heaters product line g series condensing and modulating gas fired unit heaters to heat medium large areas natural gas/lpg fired
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Installation, use and
maintenance manual
Gas unit heaters product line
G Series
Condensing and modulating Gas Fired Unit Heaters
to heat medium large areas
Natural gas/LPG fired

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  • Page 1 Installation, use and maintenance manual Gas unit heaters product line G Series Condensing and modulating Gas Fired Unit Heaters to heat medium large areas Natural gas/LPG fired...
  • Page 2 EDITION: 09/2018 Code: D-LBR565 This manual has been written and printed by Robur S.p.A.; the reproduction even partial of this manual is forbidden. The original is archived at Robur S.p.A. Any use of this manual other than for personal consultation must be previously authorised by Robur S.p.A.
  • Page 3 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance FOREWORD This manual is intended for those people who need to install and use the Robur G Series condensing Gas Fired Unit Heaters. In particular this manual is addressed to the hydraulic installation technician who shall install the generator, the electrical installation technician who shall connect the generator to the power supply and the final user who shall check its normal working.

  • Page 4: Table Of Contents

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance TABLE OF CONTENTS Section1: GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS ....2 GENERAL WARNINGS ........................2 OPERATION OF THE UNIT ......................3 CONSTRUCTIVE CHARACTERISTICS ....................5 TECHNICAL DATA ..........................6 DIMENSIONS OF G SERIES GAS FIRED UNIT HEATER ...............7 section 2: END USER ......................9 FUNCTIONS OF CHRONOTHERMOSTAT ..................9 SETTING THE TIME AND DAY ON THE CHRONOTHERMOSTAT ..........

  • Page 5: Section1: General Information And Technical Characteristics

    By the term Qualified Service Engineers it is meant the personnel having specific technical skills in the field of heating system components for civil use. In any case for more information please contact the Technical Assistance Office of ROBUR S.p.A. (tel. +39 035/888111).

  • Page 6: Operation Of The Unit

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance the internal and external tightness of the fuel supply system; fuel flow control according to the heater power requirements; that the heater is supplied with the type of fuel for which it is pre-set.; that the gas supply pressure is within rating limits;...
  • Page 7 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance If heat exchangers overheat due to malfunction, the temperature limit thermostat cuts off the supply to the gas valve by setting the blower and the fan to the maximum speed; should the temperature increase further, the limit thermostat comes into operation causing the switching off of the heater.

  • Page 8: Constructive Characteristics

    High head blower, with rotation speed control. • Cylindrical combustion chamber made of stainless steel. • Heat exchangers, patented by ROBUR, made of special light alloy, fining horizontally on the air side and vertically on the flue side with extremely high capacity of thermal exchange. •...

  • Page 9: Technical Data

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance 1.4 TECHNICAL DATA MODEL U.M. G 30 G 45 G 60 G 100 APPLIANCE CATEGORY 2H3P APPLIANCE TYPE – B GAS SUPPLY Gas naturale - G.P.L.

  • Page 10: Dimensions Of G Series Gas Fired Unit Heater

    4 gas connection G 30 656 536 157,2 307 G 45 706 536 157,2 327 G 60 796 536 157,2 371 Figure 1 – Dimensions of gas fired unit heater model G 30 – G 45 – G 60. Ed. 09/2018...
  • Page 11 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance REAR VIEW FRONT VIEW SIDE VIEW TOP VIEW LEGEND 1 flue exhaust 2 combustion air 3 power line 4 gas connection G 100 1296 1010 1080 536 157,20 507 Figure 2 –...

  • Page 12: Section 2: End User

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance SECTION 2: END USER In this section you will find all the information necessary for the correct use of the G series heating units. The functioning of the K series heating unit is controlled by a digital chronothermostat that is supplied as standard with the heater (see Figure 3).

  • Page 13: Setting The Time And Day On The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance • Programming mode PROG: press briefly the button , on the display will appear for few seconds PROG; in order to exit from programming mode press again briefly the button , on the display will appear for few seconds RUN.

  • Page 14: Programming Of The Daily Set Point On The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance In the lower left-hand corner of the display, COMFR will appear for the programming of the comfort temperature, ECONM will appear for the programming of the economy temperature, and OFFºc will appear for programming of the freeze protection temperature (see Figure 4).
  • Page 15 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Adjust the time using the buttons (minimum 10 minute intervals). Set the desired temperature level using the : button: in the upper right of the display, the sun will appear for the Comfort setting, the moon for economy setting, and no icon for the anti-frost setting.

  • Page 16: Selecting A Preset Daily Profile On The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance HOW TO CHECK DAILY SET POINTS SETTINGS Enter the programming mode by briefly pressing the button. Press the button repeatedly. On the lower left side of the display, SP n will appear where n indicates the number of the daily set point.
  • Page 17 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Enter into the programming mode by briefly pressing button: Repeatedly press the ( ) button: week The word WEEK will appear in the lower left-hand corner of the display.

  • Page 18: Timed Functions Of The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance DAILY PROFILES ASSOCIATED TO EACH DAY OF THE WEEK WEEKLY PROFILES MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY Table 4 – Weekly profiles 2.7 TIMED FUNCTIONS OF THE CHRONOTHERMOSTAT There are 3 types of timed functions: FORCED AUTOMATIC operation: noted by the presence of both the automatic and manual icons (see Figure 9).
  • Page 19 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Hh 2 Figure 9 – Forced automatic mode Figure 10 – Timed shut down mode Figure 11 – Timed manual mode. TIMED SHUT DOWN MODE (VACATION PROGRAM) This turns off the unit for a certain period of time;...

  • Page 20: Keyboard Block

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance With the buttons, set the desired temperature. Press the button (the hourglass and hand icons will appear on the display). Using the buttons, set the duration for manual operation. The time can be expressed in: •...

  • Page 21: Information Screen Of The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance 2.9 INFORMATION SCREEN OF THE CHRONOTHERMOSTAT The information menu (INFO) contains 8 parameters that provide information about the unit’s operating mode; some of these parameters can be changed and are used to personalise the operating mode of the installed unit.

  • Page 22: Selection Menu Window

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Percentage of heating output means the percentage of the modulation field included between the nominal and the minimum heating output (see Table 2). For example, setting the parameter "SP MX %" (limit maximum of the heating output) the value "50", the range of modulation of the heater will be from "0%"...

  • Page 23: Malfunction Warnings

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance PARAMETER DESCRIPTION FUNCTIONALITY DEFAULT VALUE 01 – standard 02 – function not applicable PM 01 Operating mode Default : 01 03 – ventilation priority (only without a chronothermostat) 1 –...
  • Page 24 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance ERROR DESCRIPTION RESONS INTERVENTION CODE • • The ignition electrode is broken Modify the position or or badly positioned replace the ignition electrode • • The flame sensor is broken or Modify the position or incorrectly positioned or touches replace the flame sensor...

  • Page 25: Table Of Icon Meanings On Chronothermostat Display

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance The table below shows the failures that are NOT show on display of chronothermostat. ERROR CODE DESCRIPTION REASONS INTERVENTION • Position of • chronothermostat could be Check the position of the The burner goes out and does influenced by external heat...

  • Page 26: How To Use The Unit Heater

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance 2.13 HOW TO USE THE UNIT HEATER The Gas Fired Unit Heater has the following use options (please refer to the diagrams of Figure 12 and Figure 13, from page 24): FUNCTIONING WITH CHRONOTHERMOSTAT (ref.
  • Page 27 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Figure 12 – Winter operation and renewable air functioning. Ed. 09/2018...

  • Page 28: How To Use The Unit With The Chronothermostat

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Figure 13 – Summer operation. 2.14 HOW TO USE THE UNIT WITH THE CHRONOTHERMOSTAT Options of use with the chronothermostat are: winter operating (heating) and summer operating (ventilation). WINTER OPERATING (HEATING) The functioning in heating mode could be modulating or fix (see Figure 12): A) Automatic modulating functioning...
  • Page 29 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance D) Manual fix functioning functioning with fix heat output of the unit controlled manually by the end user. Automatic modulating functioning standard operation  Total modulation (with modulating ventilation) Requirements: The heater must be connected to the electrical and gas networks.
  • Page 30 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance If ignition is done after a long period of inactivity, or at the time of the initial ignition of the unit, the operation may need to be performed numerous times due to air in the piping.
  • Page 31 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance paragraph SETTING THE COMFORT, ECONOMY AND ANTI- FREEZING TEMPERATURES ON THE CHRONOTHERMOSTAT at page 10), use the button to select the desired setting. By setting flow rate at value 4 (▲and ▼ buttons), the air flow will remain constant at the maximum speed and the heat output will module continuously based on an internal algorithm and on the temperature difference between the room set point (requested temperature) and the detected temperature.
  • Page 32 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance paragraph 2.3 - SETTING THE COMFORT, ECONOMY AND ANTI- FREEZING TEMPERATURES ON THE CHRONOTHERMOSTAT at page 10), use the button to select the desired setting. By setting the air flow level to 1, 2 or 3 ( ▲and ▼ buttons) the unit’s operation will be fixed at the power/flow rate level that is set (1 = low, 2=medium, 3= maximum).

  • Page 33: How To Use The Unit Without A Chronothermostat

    SIGNALLING OF THE ANOMALIES at page 48.  For more information regarding unit operation and use in this mode, directly contact Robur’s Pre-Sales service on +39 035/888.111 TOTAL FRESH AIR (ventilation priorità)  Total fresh air operating is possible ONLY without chronothermostat.

  • Page 34: Setting Field

     For more information regarding unit operation and use in this mode, directly contact Robur’s Pre-Sales service on +39 035/888.111 2.16 SETTING FIELD By the use of the chronothermostat it is possible to set the heat input of the unit, fixing a value (in percentage) different than the nominal one.

  • Page 35: End Of Season

    NOTE: the value "100" (%) (= value of default) correspond to the Heat Nominal Input of the heater; the value "0" (%) corresponds to the Minimum heat input of the heater. "PM 05" G 30 G 45 G 60 G 100...

  • Page 36: Section 3: Plumber Installer

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance SECTION 3: PLUMBER INSTALLER In this section you will find all the necessary indications for installation from a plumbing point of view for series G. 3.1 GENERAL RULES FOR INSTALLATION OF THE APPLIANCE Installation must be carried out, according to the manufacturer’s instructions, by a qualified service engineer;...
  • Page 37 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Install the support bracket. Robur S.p.A. supplies an optional, easy-to-install bracket specifically designed for each heater. Fasten the heater to the bracket using the screws provided.

  • Page 38: Size And Installation Of The Air Inlet / Exhaust Flue

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance Figure 15 – Sample positioning of the units 3.3 SIZE AND INSTALLATION OF THE AIR INLET / EXHAUST FLUE The G series gas fired heating units can be installed in one of the following ways: type installation: room sealed combustion circuit.
  • Page 39 Flue flow rate in in exhaust % Flue temperature Max. Allowed Pressure Mod. weight °C Loss (Pa) Natural gas kg/h G 30 8,5-9,6 9,8-10,7 G 45 8,3-9,0 9,3-10,5 G 60 8,5-9,6 G 100 Table 11 – Technical data for air/exhaust system.
  • Page 40 2-3% Figure 16 – Counterslope horizontal pipes TECHNICAL DATA FOR THE CALCULATION OF THE AIR/EXHAUST SYSTEM USING Ø 80 OR Ø 100 DUCTS SUPPLIED BY ROBUR UPON REQUEST Pressure loss Ø 80 components Pressure loss Ø 100 components duct (Pa/m) 90°...
  • Page 41 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance SAMPLE CALCULATION Let’s use the installation of a G 100 for this example. The air/flue system is made using the following separate Ø 80 ducts: 7 meters Ø 80 flue pipe 1 elbow 90°...
  • Page 42 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance C13 INSTALLATION W/ SEPARATE Ø 80 DUCTS MAXIMUM ALLOWED LENGTHS (m) AIR PIPE FLUE PIPE G 30 TOP VIEW G 45 G 60 G 100 ATTENTION: The above mentioned lengths are intended for installations in which the air and exhaust ducts are on linear paths as represented in the figure.
  • Page 43 C13 COAXIAL WALL INSTALLATION WITH Ø 130 DUCTS MAXIMUM ALLOWED LENGTHS (m) AIR PIPE FLUE PIPE TOP VIEW G 30 G 45 G 60 G 100 ATTENTION: The above mentioned lengths are intended for installations in which the air and exhaust ducts are on linear paths as represented in the figure.
  • Page 44 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance C33 COAXIAL ROOF INSTALLATION (Cod. O-KTC001) WITH Ø 130 DUCTS MAXIMUM ALLOWED LENGTHS (m) AIR PIPE FLUE PIPE G 30 G 45 G 60 G 100 CONDENSATE TRAP...
  • Page 45 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance B23 INSTALLATION WITH Ø 110 FLUE PIPE MAXIMUM ALLOWED LENGTHS (m) FLUE PIPE G 30 TOP VIEW G 45 G 60 G 100 ATTENTION: The above mentioned lengths are intended for installations in which the air and exhaust ducts are on linear paths as represented in the figure.
  • Page 46 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance B23 INSTALLATION WITH Ø110 ROOF FLUE PIPE MAXIMUM ALLOWED LENGTHS (m) FLUE PIPE G 30 G 45 G 60 G 100 ATTENTION: above mentioned lengths intended for installations in which the air and exhaust ducts are on linear paths as represented in the figure.

  • Page 47: Condensate Drainage

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance C53 INSTALLATION WITH Ø 110 PIPES MAXIMUM ALLOWED LENGTHS (m) AIR PIPE FLUE PIPE G 30 G 45 G 60 G 100 ATTENTION: above mentioned lengths...
  • Page 48 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance In case of absence of specific technical norms, please refer to local legislations. Figure 30 – Positioning of siphon condensate discharge. connection for the inspection of the siphon Connection for the condensate discharge (by the installer)

  • Page 49: Section 4: Electrical Installer

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance SECTION 4: ELECTRICAL INSTALLER In this section you will find all the information necessary for the electrical connections of the G series heating units. 4.1 HOW TO CONNECT THE HEATER TO THE ELECTRICAL SYSTEM Requirements: The heater must be installed.

  • Page 50: Unit Operation With External Consent

    (AND logic). Opening the external consent contact will deactivate the unit, regardless of what is foreseen by the chronothermostat.  For more information regarding unit operation and use in this mode, directly contact Robur Pre-Sales service on +39 035/888.111. Ed. 09/2018...

  • Page 51: Remote Signalling Of The Anomalies

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance 4.4 REMOTE SIGNALLING OF THE ANOMALIES Electric connections must be made by professionally qualified personnel. In any case, before making any electric connection, cut off the electrical supply. The possible anomalies that could arise during normal unit operation can be identified through their “error code”...

  • Page 52: Installation Wiring Diagram

    Segnale di blocco - Lock signal - Signal lock - Locksignal - doutnavka signalizující poruchu - СИГНАЛ БЛОКИРОВКИ Pulsante di sblocco - Reset - Touche release - Reset taste - reset chyby - КНОПКА ДЛЯ РАЗБЛОКИРОВК И Figure 33 – Installation wiring diagram of G 30, G45, G60 Ed. 09/2018...
  • Page 53 Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance REMOTE UNIT INTERFACE 1 2 3 4 5 6 SCH1 Portina SCH2 FUSE 6.3A IN 230V 50Hz MED/MIN MED/MAX REMOTE CONTROL Soffiatore - Blower - Souffleur - Geblauser - dmychadlo - ПОДДУВ. УСТРОЙСТВО ДЛЯ ДЫМОУДАЛЕНИЯ SCH1 Scheda di controllo - Control board - Carte de controlle - Steuerplatine - řídící...

  • Page 54: Wiring Diagram For Multiple Heater With One Programmer

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance WIRING DIAGRAM FOR MULTIPLE HEATER WITH ONE PROGRAMMER Figure 35 – Wiring diagram for controlling multiple units with external consent Ed. 09/2018...

  • Page 55: Section 5: Assistance And Maintenance

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance SECTION 5: ASSISTANCE AND MAINTENANCE In this section you will find the indications necessary for the technicians to regulate the gas valve, gas conversion as well as other instructions regarding maintenance. 5.1 START UP OF THE UNIT ...
  • Page 56 Table 16. PRESSURE OFF-SET REGULATION SET GAS REGULATION SCREW C OFF-SET REGULATION Figure 36 – Valve Sit 822 Novamix. NOMINAL OFF-SET VALUES G 30 G 45 G 60 G 100 OFF-SET (mbar) -0,15...

  • Page 57: Conversion To Another Type Of Gas

    5.2 "HOW TO REGULATE THE GAS VALVE ". Replace the adhesive label indicating the type of gas for which the unit is set with a new label indicating the type of gas actually used. NATURAL GAS and L.P.G nozzles G 30 G 45 G 60 G 100...

  • Page 58: Maintenance

    Condensing Gas Fired Unit Heaters – G Series: Manual of installation, use and maintenance GAS PIPE/FLANGE ASSEMBLY FASTENING SCREW Figure 37 – Gas flange fastening screws. Figure 38 – Gas pipe/flange assembly. NOZZLE SEALING GASKET SEALING GASKET Figure 39 – Sealing gasket. Figure 40 –...
  • Page 59 The intervention of the temperature limit thermostat is ALWAYS an indication of an irregular condition. Before resetting it is therefore a good idea to investigate the reasons why the unit overheated. In there are frequent shutdowns, contact ROBUR Customer Assistance.
  • Page 60 Table 9 COMMISSION REGULATION (EU) 2016/2281 Information requirements for warm air heaters Model(s): Information to identify the model(s) to which the information relates: G 30 warm air heater: [yes/no] warm air heater: [yes/no] warm air heater: [yes/no] Type of fuel: [gas/liquid/electricity]...
  • Page 61 (*) (**) energy (GCV) Emission efficiency η 93,7 s,flow Seasonal space heating η 85,0 energy efficiency Robur SPA Contact details Via Parigi 4/6 I-24040 Zingonia (BG) (*) Not required for electric warm air heaters. (**) From 26 September 2018.
  • Page 62 (*) (**) energy (GCV) Emission efficiency η 94,1 s,flow Seasonal space heating η 84,8 energy efficiency Robur SPA Contact details Via Parigi 4/6 I-24040 Zingonia (BG) (*) Not required for electric warm air heaters. (**) From 26 September 2018.
  • Page 63 (*) (**) energy (GCV) Emission efficiency η 92,9 s,flow Seasonal space heating η 84,7 energy efficiency Robur SPA Contact details Via Parigi 4/6 I-24040 Zingonia (BG) (*) Not required for electric warm air heaters. (**) From 26 September 2018.
  • Page 64 Robur is dedicated to dynamic progression in research, development and promotion of safe, environmentally-friendly, energy-efficiency products, through the commitment and caring of its employees and partners. Robur Mission Robur Spa advanced heating and cooling technologies Via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111 F +39 035 4821334 www.robur.com...

This manual is also suitable for:

G 100G 45G 60

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