Installation, use and maintenance manual Heaters Line F1 Series Gas fired unit heaters for heating medium-large areas Natural gas/LPG fired
Ed. 05/2009 F1 GAS FIRED UNIT HEATERS TABLE OF CONTENTS SECTION 1 GENERAL WARNINGS: .................................................................page 3 SECTION 2 GENERALITY AND CHARACTERISTICS:.....................................page 4 Operation of the unit....................................................................................page 4 Constructive characteristics ........................................................................page 4 Safety and Control devices ...............
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Ed. 05/2009 SECTION 1 - GENERAL WARNINGS - - - - - • • • • This manual is an integral and essential part of the product and must be given to the user. Qualified service engineers are those having specific technical experience in the field of heating installation unit for domestic and industrial use. In the case of any doubt, contact your local agent or Manufacturer. This unit must be exclusively used for the purpose it was intended. Any other use is to be considered improper and therefore dangerous.
Ed. 05/2009 SECTION 2 - GENERALITY AND CHARACTERISTIC OPERATION OF THE UNIT - The F1 gas fired air heater is an independent heater appliance with airtight combustion circuit and forced air draft. - It’s designed for an indoor installation - inside the area to be heated. - It’s adjustable for the use of Natural Gas (G20) or LPG (G30/G31).
Ed. 05/2009 SAFETY AND CONTROL DEVICES - - - High temperature limit switch: 100°C with manual reset (prevents the overheating of the heat exchangers) Pressure differential switch: for the control of the correct flue fan operation; when fan not operates correctly or the flue/air inlet ducts are obstructed the pressure switch stops the gas supply by closing the gas valve. Gas valve: in the case that one of the safety devices is activated (limit thermostat, safety thermostat etc.
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Ed. 05/2009 SECTION 3 - INSTALLATION GENERAL RULES - - WARNING! A qualified service engineer following the manufacturer’s instructions must carry out the installation. Qualified engineer means those having specific technical competence according to national/international standards. In any case all necessary information could be obtained directly by Qualified Engineer or Manufacturer. An incorrect installation can cause damages to people, animals and property.
Ed. 05/2009 NOTE The electrical safety of the unit is attained only when the unit itself is correctly connected and efficiently grounded according to the existing safety standards. Do not use gas tubes to earth electrical apparatus. G. The unit should be connected to the electric supply line by means of an omnipolar switch with a minimum contact opening of 3 mm. An omnipolar switch is a '’Double pole isolating switch’’, i.e. a switch capable of disconnecting both on phase and neutral.
Ed. 05/2009 Figure 4 POSITION OF THE UNITS SIZE AND INSTALLATION OF THE AIR INLET / FLUE EXHAUST F1 Series gas fired unit heaters can be installed as following: - B23 type installation, combustion air taken directly from the room and flue exhaust gases to the outside. This exhaust flue duct can be either horizontal or vertical. This type of installation is not sealed regarding the heated room (see figures 6/7). - C13 e C33 type installation; room sealed combustion circuit.
Ed. 05/2009 Note: When horizontal pipes with lengths above 1 metre are installed, the flue pipe must be mounted with a slope of 2 to 3 cm each 1 metre length (see fig. 5), to prevent entering the condense drops into the unit. In addition, to install correctly the flue exhaust and the air intake terminals, follow the details given in figure 8.
Ed. 05/2009 Mod. Flue Temperature °C Flue flow (weight) kg/h Max.
Ed. 05/2009 MAXIMAL PIPE LENGTH BY VARIOUS INSTALLATION Type of Installation B 23 C 13 C 33 Coaxial pipe wall Pipe Ø 80 Mod Separate pipe Ø 80 C 53 Coaxial pipe Roof Ø 125 (OSCR007) Ø 180 (OKTC004) Ø 125 Ø 150 (OSCR008) (OSCR009) Ø 210 (OKTC001) pipe Ø 80 pipe Ø 130 pipe Ø 80 pipe Ø 100 pipe Ø 130 pipe 80 Horiz. Verti. flue flue air/flue air/flue air/flue air/flue air/flue air/flue air/flue F1 21 21 16 13+13 12+12 N.D. 8+8 15+15 N.D.
Ed. 05/2009 TOP VIEW TOP VIEW F A D E F F1 Unit Heater Pipe Ø 80 Pipe Ø 80 Coaxial Pipe flue D E A Cod.
Ed. 05/2009 RECOMMENDED 1 ALLOWED 2 1 2 2 FORBIDDEN 1 1 = FLUE 2 = AIR SUPPLY Figure 12 WALL TERMINAL POSITION Note: If the total length of the flue system exceeds 8 metres, it is advisable to contact the Authorised Engineer or Manufacturer.
Ed. 05/2009 SUPPORT BRACKET INSTALLATION Manufacturer supplies an optional, easy-to-install bracket, specifically designed for each heater. Should you wish not to use these accessories, please refer to the diagram below. Fasten the unit to the support brackets using four M10 bolts.
Ed. 05/2009 Note: The control cables (specially those linked to the remote control and to the temperature probe) must be kept far away from electrical cables this can be done using e.g shielding or separate pipes for the two types of cables. BURNER PRESSURE ADJUSTMENT For correct operation, the burner pressure must be as given in table n°5, n°6 and n°7. The burner gas pressure of each unit is set at the factory and is shown by the labels on the package and by a label inside the control panel of each unit.
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Ed. 05/2009 CONVERSION TO ANOTHER TYPE OF GAS WARNING! Qualified engineers must carry out this operation. Wrong and careless assembly of the gas circuit may cause dangerous gas leakage. Use adequate seals for all connections. If the type of gas on the identification label does not correspond to the one that will be used, the unit must be converted and adapted to the type of gas you wish to use. For this operation proceed as follows: A) Cut off power and gas supply.
Ed. 05/2009 Figure 15 Figure 16 C) Loosen, without removing, 4 screws for fastening the gas supply pipe to the gas valve (figure 16); D) Shove off the gas pipe and take off the nozzle. If necessary use the screwdriver as to lever it (see figure 17); E) Take off the gasket and mount it at the new nozzle F) Thread the new nozzle at the seat; G) Re-assembly the gas pipe, Check that the round gasket inside the ring nut and the square one at the valve fitting are positioned correctly.
Ed. 05/2009 OPERATING WIRING DIAGRAM BSRB Figure 18 LEGEND: M9 fuse 5x20 6.3 A F M2 fan thermostat CV fan capacitor (2 pcs. for F1 61/81) V fan motor ((2 pcs.
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Ed. 05/2009 SECTION 4 - USE AND OPERATION START AND STOP OF THE UNIT WARNING Qualified service engineer must fulfil the first start-up of the appliance. Before turning on the heater, a qualified service engineer must check: • that electric and gas supply ratings are the same as those given in the data plate.
Ed. 05/2009 Stop of the unit - To turn off the unit, set the room thermostat to the lowest temperature. The burner is turned off, while the fan will continue to operate until the unit is completely cold. WARNING In case of long inactivity, after carrying out the above operation and after the fans have turned off, close the gas cock and disconnect the electric supply by using the omnipolar switch placed on the supply line.
Ed. 05/2009 SECTION 5 - MAINTENANCE AND SERVICING REMOVABLE BURNER The burner mounted inside the F1 Gas Unit Heaters is removable type: this particular construction characteristic allows the cleaning of the burner. WARNING The cleaning of the burner is to be done by qualified personal. Erroneous or not correct operation of the gas pipeline can cause dangerous gas leakages on all circuit and particularly on the tamped segment. To clean the burner proceed as follows: 1.
Ed. 05/2009 WARNING Only qualified service engineer authorised by Manufacturer must carry out the operation of servicing and maintenance. OPERATING FAILURES Before looking for possible failures, check: • Correct power supply: 230 V ±10%, 50Hz and adequate grounding. • Correct Gas supply • Piping pressure losses within the limits recommended by the manufacturer. Pressure losses higher than limits will result in insufficient gas inlet.
Ed. 05/2009 thus preventing re-ignition. When electricity returns, push the reset button which is placed externally, on the rear panel, under the black cover cap (see figure 23). c) The flame sensor touches the some metal part of the unit, or it is disconnected. d) The gas valve does not open due to a failure of the valve itself or of its electrical connections. CASE N°3 The temperature limit thermostat (M1) stops the burner. a) The heat exchangers have overheated.
Ed. 05/2009 TROUBLESHOOTING FLOW CHART The heater does not start neither for heating nor for ventilation Main switch ON YES Check the fuse. Is it burnt-out? Consult your installer Replace the fuse NO NO Open the gas supply.
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Ed. 05/2009 With the aim of continuously improving the quality of our products, Robur S.p.A. reserves the right to vary above instructions and drawings without any prior notice. Robur S.p.A Via Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy Phone: +39035888111 Fax:+39035884165 http://www.robur.it e-mail: robur@robur.
09 MCM SDC 005 - 28/05/2009 Codice: D-LBR158 rev.F 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 export@robur.
