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Summary of Contents for Robur M Series
- Page 1 Installation, use and maintenance manual Gas unit heaters for use in industrial and commercial installations Powered by natural gas/LPG...
- Page 2 The rights of those who have legitimately filed the registered trademarks contained within this publication are not affected. With the aim of continuously improving the quality of its products, Robur S.p.A. reserves the right to modify the data and contents of this Installation, use and maintenance manual without prior notice.
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Page 3: Table Of Contents
INDEX OF CONTENTS Introduction 3 Heating engineer ................p. 4 ............... p. 17 Recipients ................p. 4 Warnings ................p. 17 Control device ..............p. 4 Fuel gas supply .............. p. 17 Combustion products exhaust ........ p. 18 II Symbols and definitions ..........p. 4 Air ducting ............... p. 21 II.1 Key to symbols .............. -
Page 4: Iintroduction
SYMBOLS AND DEFINITIONS II.1 KEY TO SYMBOLS gas unit heater. TAC = Technical Assistance Centre authorised by Robur. External request = generic control device (e.g. thermostat, tim- DANGER er or any other system) equipped with a voltage-free NO contact and used as control to start/stop the unit. -
Page 5: Iii.2 Conformity
Electrical safety depends on an effective earthing sys- tem, correctly connected to the appliance and carried The M series gas unit heaters meet the essential requirements of the following Directives: out in accordance with the regulations in force. Do not 2014/30/EC "Electromagnetic Compatibility Directive"... -
Page 6: Iii.3
Warnings convection air heaters for space heating not exceeding a net and/or improper use and/or failure to comply with reg- heat input of 300 kW. ulations and with the manufacturer's directions/instruc- tions shall be disclaimed. Other applicable provisions and standards The design, installation, operation and maintenance of the sys- tems shall be carried out in compliance with current applicable In particular, the warranty on the appliance may be ren-... -
Page 7: Features And Technical Data
In summer it is possible to operate the fan only in order to pro- 1.1.2 Operation vide a pleasant air flow within the room. The M series gas unit heater is an independent heating appli- 1.1.3 Mechanical components ance with airtight combustion circuit and forced air draft. -
Page 8: Dimensions
Features and technical data DIMENSIONS Figure 1.1 M series generators size Flue gas exhaust Combustion air inlet Power supply cables input Gas connection B max M20, M25, M30, M35, M36, M40 M50, M60 Figure 1.2 M C series generators size Flue gas exhaust... -
Page 9: Electrical Wiring Diagram
Features and technical data Table 1.1 Dimensions M20 C M30 C M35 /M36 M60 C 1070 1270 1270 1010 1010 1080 1078 1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 3/4” ELECTRICAL WIRING DIAGRAM Figure 1.3 Operating wiring diagram 1 2 3 4 5 6 7 13 14 15 16 17 18 19 J6 JT1 J5 JT 2 230V-50HZ... - Page 10 Features and technical data Figure 1.4 Wiring plan for mounting the M20/M25/M30/M35/M36/M40 devices (see legend Figure 1.3 p. 9 ) Blue Black Winter Brown Summer...
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Page 11: Controls
Features and technical data Figure 1.5 Mounting electrical diagram for M50/M60 units (see legend Figure 1.3 p. 9 ) Blue Black Winter Brown Summer CONTROLS 2. OCTR000 2-key basic control 3. OTRG005 thermoregulator 4. OCDS008 digital chronothermostat (in association with 1.4.1 Control device OTRG005 thermoregulator) The appliance may only work if it is connected to a control de- 5. - Page 12 Features and technical data 1.4.2 OCDS012 1-key basic control serial interface also allows to create cascading systems managed by a single chronothermostat (optional OCDS008, described in Paragraph 1.4.5 p. 12 ), with considerable advantages in terms Figure 1.6 OCDS012 1-key basic control of temperature control, especially in large spaces.
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Page 13: Electrical Panel
The main functions are: voltage-free NO contact. Centralized system to control up to 100 gas unit heaters. For managing the request signal (Z9 contact), Robur provides as ▶ Division of gas unit heaters into zones, up to 10 different optional different models of thermostats and chronothermostats. - Page 14 Features and technical data to flue in operation 11,20 11,50 11,80 11,40 11,50 11,80 11,50 12,00 Heat loss to jacket in operation 0,30 0,40 0,50 with burner off 0,25 Temperature rise nominal heat input 20,5 29,4 23,8 28,6 26,6 27,8 29,8 27,3 lenght of throw (residual speed <...
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Page 15: 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 damage dur- ing appliance transport and installation. -
Page 16: Minimum Clearance Distances
2,5 m from the floor. Gas unit heater fixing points centre distance Support bracket length SUPPORT BRACKET Robur provides easy mounting support brackets as an option- al, suitably designed for M series gas unit heaters, which allow... -
Page 17: Heating Engineer
Heating engineer Table 2.1 Support bracket dimensions for axial gas unit heaters OKMN000 swivel bracket (models M35, M36, M40) ▶ O19800026 revolving wall support bracket (M50 model) ▶ M35/M36 O19800028 revolving wall support bracket (M60 model) ▶ 1010 OSTF009 support bracket 1,4 m length ▶... -
Page 18: Combustion Products Exhaust
The appliance gas supply pressure, both static and dynamic, must comply with the values in the Table, with a tolerance of ± 15%. 3.2.5 Vertical pipes and condensate Gas unit heaters of the M series can be installed to one of the following options. Vertical gas pipes must be fitted with siphon and discharge ▶... - Page 19 The total permissible pressure drop in the pipe system depends on the model of the instrument and any diaphragm fitted (Table 3.2 p. 20 ). The pressure drops of the flue and air pipes available as Robur View from above optional are shown in Table 3.3 p. 20 .
- Page 20 Heating engineer Table 3.2 Permissible pressure drop depending on model and mounted diaphragm Air diaphragm Fumes diaphragm Admissible pressure drop (Pa) Height (mm) Code Height (mm) Code maximum Minimum M20, M20 C ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----...
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Page 21: Air Ducting
Set up the air ducting using a traditional sufficiently smooth 3.3.6 Installing the flue diaphragm sheet metal duct. One or more smoke diaphragm is supplied with the M series The insulation of the duct must be assessed, in order to avoid generators. heat losses. -
Page 22: Electrical Installer
Electrical installer ELECTRICAL INSTALLER WARNINGS ELECTRICAL POWER SUPPLY 4.3.1 Power supply line General warnings Provide (by the installer) a protected single phase line (230 V 1-N 50 Hz) with: Read the warnings in Chapter III.1 p. 4 , providing im- Cable type H05 VVF 3x1,5 mm with maximum external di- portant information on regulations and on safety. - Page 23 Electrical installer 4.4.2.2 Summer/winter mode management Figure 4.2 1-key basic control connection Lockout lamp How to connect the external request for summer/ Reset button winter mode management 1. Access the electrical board of the appliance according to the Procedure 4.2 p. 22 . 2.
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Page 24: First Start-Up
Power supply mains complying with the appliance's rating ▶ Robur TAC. NEITHER the user NOR the installation tech- plate data. nician is authorised to perform such operations, under Appliance correctly installed, according to the manufactur- ▶... -
Page 25: Burner Pressure Adjustment
First start-up 5.1.3 Non-compliant system and corrective actions Figure 5.1 Burner Should the TAC find any non conformities, the user/installer is bound to perform any corrective procedures required by the TAC. After performing the remedial actions (the installer's responsi- bility), if the TAC deems that safety and conformity conditions are in place, first start-up may be effected. - Page 26 First start-up Table 5.1 Burner gas pressure M20 C M30 C M60 C Installation data mbar 11,8 11,0 mbar 15,0 15,5 - (1) 10,5 12,1 10,2 G2.350 mbar - (1) - (1) Nominal heat mbar - (1) input mbar 29,0 mbar 34,2 33,3 32,5...
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Page 27: Gas Changeover
„ connection and any necessary power supply of the con- First startup by TAC trol device First start-up may exclusively be carried out by a Robur After a long period of unit inactivity or at the first start-up, TAC (Chapter 5 p. 24 ). -
Page 28: Maintenance
Maintenance valve opens and the burner ignites. (thermostat, chronothermostat or voltage-free contact). 4. When the flame is detected, the control box keeps the gas 3. After the purge time (around 40 seconds), the gas solenoid valve open. valve opens and the burner ignites. 5. -
Page 29: Scheduled Routine Maintenance
If frequent stops occur, 9. After 40 seconds from extractor fan start, check the elec- contact Robur TAC. trodes for sparks. If the electrodes do not spark: „ Check its position and the connection cable. - Page 30 Maintenance „ If the electrode and power supply are ok, replace the ig- board. nition transformer. 12. After the burner ignition, check gas supply pressure, both 11. If the burner does not start or no gas flows from it: static and dynamic, with respect to values in Table 3.1 p. 17 . „...
- Page 31 Maintenance Figure 7.2 continued Does the flue fan Replace the anti-welding stop and go? device of pressure switch Replace the Replace the ignition electrode fuse Check the ignition electrode and Does the electrode start related cable. Is the electrode Is the control unit Replace the sparking in the burner properly positioned and does the...
- Page 32 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 climate 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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