Summary of Contents for ROBUA G Series
- Page 1 Installation, use and maintenance manual Condensing gas unit heaters for use in industrial and commercial installations Powered by natural gas/LPG 2021 ready...
- Page 2 DISPOSAL The appliance and all its accessories must be disposed of separately in accordance with the regulations in force. Use of the WEEE symbol (Waste Electrical and Electronic Equipment) indicates that this product cannot be disposed of as house- hold waste. Proper disposal of this product helps to prevent potential negative consequences for the environment and human health.
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Page 3: Table Of Contents
INDEX OF CONTENTS Introduction 4 Electrical installer ................p. 4 ............p. 23 Recipients ..............p. 4 Warnings ..............p. 23 Control device ............p. 4 Electrical systems ..........p. 23 Electrical power supply ........p. 23 II Symbols and definitions ......... p. 4 Control system............. p. 24 Key to symbols ............p. 4 II.1 Remote the fault signals ........ -
Page 4: Iintroduction
Introduction INTRODUCTION Installation, use and maintenance manual End user, for appropriate and safe use of the appliance. ▶ Qualified installer, for correct appliance installation. ▶ This Manual is an integral part of the G unit and Planner, for specific information on the appliance. ▶... - Page 5 Warnings Distance from combustible or flammable mate- „ Before performing any operation on gas ducting components, close the gas valve. rials „ Upon completing any procedure, perform the „ Do not deposit flammable materials (paper, dilu- tightness test according to regulations in force. ents, paints, etc.) near the appliance.
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Page 6: Iii.2 Conformity
EU directives and standards ▶ Any other applicable law, standard and regulation. ▶ The G series gas unit heaters are certified in accordance with European regulation GAR 426/2016/EU and meet the III.3 EXCLUSIONS OF LIABILITY AND essential requirements of the following Directives: WARRANTY 2016/426/EU "Gas Appliances Regulation"... -
Page 7: Features And Technical Data
In the event of obstructions or malfunction beyond the permitted range, the flue thermostat trip The G series gas unit heater is an independent heating causes the gas valve to stop and the gas unit heater to be appliance with airtight combustion circuit and forced air turned off. -
Page 8: Dimensions
Features and technical data DIMENSIONS Figure 1.1 G30, G45, G60 gas unit heater dimensions Flue gas exhaust Gas connection 3/4" F Combustion air inlet Condensate drain siphon (supplied as standard) Power supply cables input... - Page 9 Features and technical data Figure 1.2 G100 gas unit heater dimensions Flue gas exhaust Gas connection 3/4" F Combustion air inlet Condensate drain siphon (supplied as standard) Power supply cables input Installation, use and maintenance manual – G gas unit heater...
- Page 10 Features and technical data Table 1.1 Dimensions G100 1296 1010 1080 157,2 157,2 157,2 157,2...
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Page 11: Electrical Wiring Diagram
Features and technical data ELECTRICAL WIRING DIAGRAM Figure 1.3 Electrical wiring diagram for G30, G45, G60 1 2 3 4 5 6 SCH1 SCH2 FUSE 6.3A IN 230V 50Hz MED/MIN MED/MAX X7 X10 TRF 1 SF Blower STF Flue gas temperature probe Blue SCH1 Control board... -
Page 12: Controls
Features and technical data Figure 1.4 Electrical wiring diagram for G100 1 2 3 4 5 6 SCH1 SCH2 FUSE 6.3A IN 230V 50Hz MED/MIN MED/MAX X7 X10 SF Blower STF Flue gas temperature probe Pink SCH1 Control board Limit thermostat Grey SCH2 Motor board... -
Page 13: Technical Data
Features and technical data TECHNICAL DATA Table 1.2 Technical data G100 Heating mode nominal (1013 mbar - 15 °C) (1) 30,0 45,0 58,0 93,0 Heat input minimum (1) 15,0 19,3 31,7 nominal 29,2 43,3 56,2 90,2 Heat output minimum 15,8 15,6 20,2 33,5 nominal heat input... -
Page 14: Transport And Positioning
Transport and positioning TRANSPORT AND POSITIONING WARNINGS APPLIANCE POSITIONING The unit must be installed in the room to be heated. Damage from transport or installation 2.3.1 Where to install the appliance The manufacturer shall not be liable for any dam- The wall or structure on which the unit is to be in- age during appliance transport and installation. -
Page 15: Minimum Clearance Distances
Figure 2.3 Installation with support bracket SUPPORT BRACKET Robur provides easy mounting support brackets as an optional, suitably designed for G series gas unit heaters, which allow simplifying the wall fixing. The following support brackets are available: O19800020 revolving wall support bracket (G30, G45 ▶... - Page 16 Transport and positioning Table 2.1 Support bracket dimensions G100 1010...
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Page 17: Heating Engineer
Heating engineer HEATING ENGINEER WARNINGS on the rear, to the left (see dimensional diagrams, Paragraph 1.2 p. 8 ). 3.1.1 General warnings Install an anti-vibration connection between the ap- ▶ pliance and the gas piping. Read the warnings in Chapter III.1 p. 4 , pro- 3.2.2 Mandatory shut-off valve viding important information on regulations and Provide a gas shut-off valve (manual) on the gas supply... -
Page 18: Combustion Products Exhaust
With LPG the following must be installed: A first stage pressure reducer, close to the liquid gas ▶ Gas unit heaters of the G series can be installed to one of tank. the following ways. A second stage pressure reducer, close to the appli- ▶... - Page 19 Heating engineer 3.3.3.2 B23 type installation with roof flue gas exhaust 3.3.3.4 C13 type installation with wall coaxial terminal pipe Figure 3.4 C13 type installation with wall coaxial terminal Figure 3.2 B23 type installation with roof flue gas exhaust pipe View from above Table 3.5 ...
- Page 20 Heating engineer Table 3.7 C33 type maximum allowed length with 80/125 roof Table 3.10 C53 type maximum allowed length with separate coaxial terminal and Ø 80 ducts ducts Indicative maximum lengths (m) Indicative maximum lengths (m) Air pipe Flue gas exhaust pipe Air pipe Flue gas exhaust pipe Ø...
- Page 21 Heating engineer Table 3.12 Data for the calculation of the air/fumes system with Ø 80/110/130 pipes available as optional G100 Flue gas exhaust pressure drop Pipe 22,4 Ø 80 mm Elbow 90° 12,7 31,6 17,7 27,9 67,2 Pipe Ø 110 mm Elbow 90°...
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Page 22: Flue Gas Condensate Discharge
Heating engineer Increase pipe diameter, e.g. by using Ø 110. In this case ▶ Figure 3.7 Horizontal pipe counter-slope the total pressure drop would be: 7 m x 4,6 Pa/m = 32,2 Pa 1 x 8,6 Pa = 8,6 Pa 6 m x 1,6 Pa/m = 9,6 Pa Total pressure drop = 50,4 Pa... -
Page 23: Electrical Installer
Electrical installer 3.4.3 Flue gas condensate discharge manifold system must be made at atmospheric pressure, i.e. by dripping into a siphoned container connected To make the condensate drain manifolds: to the sewerage system. Size the ducts for maximum condensation capacity ▶... -
Page 24: Control System
Electrical installer How to connect the power supply draughts, direct exposure to sun rays and direct heat sources (lamps, hot air flow from the unit itself, etc.). To connect the three-pole power supply cable: If possible, do not place the control system on walls ▶... -
Page 25: Remote The Fault Signals
Electrical installer must also be provided by the latter. unit heater to be switched off regardless of what is fore- Opening the external enable contact will cause the gas seen by the chronothermostat. Figure 4.3 Wiring diagram for controlling multiple gas unit heaters with external enables REMOTE THE FAULT SIGNALS warning light to terminals X9 of the motor board (output 230V - 50Hz, see diagram in Figure 4.4 ... -
Page 26: Remote The Error Reset
Other type of anomaly Flashing (on = 1 second, off = 4 seconds) (2) The flue gas temperature thermostat is present on the G series gas unit heaters. After 72 hours of continuous flashing status, the led becomes fixed. REMOTE THE ERROR RESET Figure 4.5 ... -
Page 27: Combustion Parameters Check
First start-up 7. Ensure the CO instead of the provided control device. value is between values indicated in Appliance defects or faults caused during transport or column "Minimal heat input" of the following Tables, ▶ installation. depending on the model and the gas type used. Gas smell. -
Page 28: Gas Changeover
Normal operation Table 5.2 G30 gas valve setting table Table 5.4 G60 gas valve setting table Offset Offset percentage in fumes percentage in fumes pressure pressure network network Minimal heat Nominal heat Minimal heat Nominal heat pressure nominal pressure nominal input input input input Type... -
Page 29: Chronothermostat
Normal operation Checks before switching on „ PROG programming mode: briefly press the key, the display will show the PROG sliding text Before switching on the appliance, ensue that: for a few seconds; to exit the programming mode, „ gas valve open briefly press the key again;... - Page 30 Normal operation „ The value of the antifreeze temperature must be move you to the next setting. between 2,0 and 10,0 ºC (in steps of 0,1 ºC). 6. After setting the desired temperatures, press the 5. To confirm the set value, press the key.
- Page 31 Normal operation daily profile previously set for the same day. 12. Press the key to exit the programming mode. How to check the daily setpoints you have set 8. Press the key to exit the programming mode. 1. Enter programming mode by shortly pressing the 6.3.6 Choice of a preset weekly profile on the key.
- Page 32 Normal operation Table 6.1 Daily profiles Timetable and temperature level associated with daily setpoints Daily profiles 00:00 A 05:30 C 21:30 A 00:00 R 05:30 C 21:30 R 00:00 A 07:00 C 12:00 R 13:00 C 19:30 A 00:00 R 07:00 C 12:00 R 13:00 C 19:30 R...
- Page 33 Normal operation Figure 6.7 Forced automatic operation 1. Select manual operation using the key. 2. Use the keys to set the desired temperature. 3. Press the key (the hourglass and hand icons will appear on the display). 4. Use the keys to set the duration of the manual function.
- Page 34 Normal operation steps 1, 2 and 3, setting the value to 0. customize the operating mode of the installed unit. 1. Enter the INFO menu by pressing the key for more 6.3.9 Chronothermostat information window than 3 seconds: INFO will appear on the display. The INFO menu contains 8 parameters that provide in- 2.
- Page 35 Normal operation Table 6.4 Operating parameters Parameter Description Features Default 01 - standard 02 - function not applicable PM 01 Operating mode 03 - ventilation priority (only without chronothermostat) 1. low speed Ventilation speed in ventilation priority mode (only without 2. average-low speed PM 02 chronothermostat) 3.
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Page 36: Gas Unit Heater Operating Modes
Normal operation Error code Fault description Causes What to do 10 E Flue gas temperature probe fault Flue gas temperature probe fault Replace the probe Check that the air intake or flue exhaust ducts are not obstructed or excessively long Check that the condensate drain pipe or 11 E Lock for minimum flue temperature... - Page 37 Normal operation 6.4.1.2 Modulating automatic standard operation any modulation. 1. Press the key of the chronothermostat (Figure Fixed ventilation (with constant ventilation at maximum speed) 6.1 p. 29 ) to select the winter operating mode (heat- ing): this operation is identified by the radiator symbol 1.
- Page 38 Normal operation to the unit. and ventilation (maximum values). 7. For operation during summer (fan operation only) 2. Press the button on the chronothermostat: radia- tor symbol will turn off. close the contact X7, marked with the symbol, placed on the SCH2 board. This way the fan will run at 3.
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Page 39: Operating Diagrams
Normal operation OPERATING DIAGRAMS Figure 6.10 Summer mode GAS UNIT HEATER Operation Operation WITH WITHOUT chronothermostat chronothermostat SUMMER SUMMER operation operation (VENTILATION only) (VENTILATION only) Automatic Manual Manual (scheduled) Fixed ventilation Fixed ventilation Fixed ventilation MAX level (programmable) (programmable) (unchangeable) level 1 level 2 level 3 level 1... - Page 40 Normal operation Figure 6.11 Winter operation and air renewal operation...
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Page 41: Setting Range
Maintenance SETTING RANGE follow the setting instructions given in Paragraph 6.3.10 p. 34 . Through the chronothermostat it is possible to set the heat output of the gas unit heater, setting a value (in per- The following Table 6.8 p. 41 shows, depending on the centage) different from the nominal one. -
Page 42: Scheduled Routine Maintenance
Maintenance SCHEDULED ROUTINE on an annual basis. MAINTENANCE Perform the operations in the following Table 7.1 p. 42 Table 7.1 Scheduled routine maintenance Next-R Ordinary scheduled maintenance clean the burner √ √ √ √ clean the ignition and flame sensor electrodes √... - Page 43 Maintenance long period of time, disconnect it from the electrical and gas mains. How to deactivate the appliance for long pe- riods of time 1. Switch the appliance off (Paragraph 6.2 p. 28 ). 2. Only when the appliance is completely off, power it off with the main switch/disconnector switch (Detail GS in Figure 4.1 ...
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Page 44: Appendices
Appendices APPENDICES PRODUCT FICHE Figure 8.1 Table 9 Informa�on requirements for warm air heaters Model(s): Informa�on to iden�fy the model(s) to which the informa�on relates: warm air heater: [yes/no] warm air heater: [yes/no] warm air heater: [yes/no] Type of fuel: [gas/liquid/electricity] Item Symbol Value... - Page 45 Appendices Figure 8.3 Table 9 Informa�on requirements for warm air heaters Model(s): Informa�on to iden�fy the model(s) to which the informa�on relates: warm air heater: [yes/no] warm air heater: [yes/no] warm air heater: [yes/no] Type of fuel: [gas/liquid/electricity] Item Symbol Value Unit Item Symbol...
- Page 48 Robur mission 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 S.p.A. advanced technologies for air conditioning via Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy +39 035 888111 - F +39 035 884165 www.robur.it robur@robur.it...
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