Installation, use and maintenance manual Heaters Line F2 Series C Gas fired unit heaters for heating medium-large areas Natural gas/LPG fired
EDITION: 06/2011 Code: D-LBR552 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. 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 our products, Robur S.p.A.
FOREWORD FOREWORD This manual is intended for those people who need to install and use the Robur F2 C Series 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. This manual is also addressed to the Technical Assistance Centres for the main service operations. Ed.
Series F2 80 C Meaning of Icons The icons placed on the right margin of the odd pages of this manual have the following meaning: Danger signal ! Warning Note Start of operating procedure Reference to another part of the manual or to another manual/book Table 1 – Descriptive Icons Section 1 - Generality and Technical Characteristics Section 2 - User Section 3 - Hydraulic Installation Technician Section 4 - Electrical Installation Technician Section 5 - Maintenance and Servicing Table 2 – Section Ic
TABLE OF CONTENTS TABLE OF CONTENTS SEZIONE 1: GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS..........7 1.1 GENERAL WARNINGS .......................................................................................................................7 1.2 OPERATION OF THE UNIT ................................................................................................................9 1.3 TECHNICAL CHARACTERISTICS............................................................................................
Series F2 80 C 6 Ed.
GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS SEZIONE 1: GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS In this section you can find the general warnings to follow for the installation and use of the F2 C Series heaters, a short description of the heater operation, design characteristics and technical data. 1.1 GENERAL WARNINGS This manual is an integral and essential part of the product and must be given to the final user. This appliance must be exclusively used for the purpose it was intended.
Series F2 80 C - that the gas supply pressure is within rating limits. - that the gas supply system is suitable to the heater and all safety and check-over devices prescribed by existing standards are duly installed. Do not use gas pipes to ground the appliance, or any other electrical appliances. Avoid unnecessary supply when unit is not in use and always clock the main gas cock. If the appliance is turned off for a longer time period, close the main gas supply cock and cut off the power supply.
GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS 1.2 OPERATION OF THE UNIT The F2 C Series gas fired unit heater is an independent heater appliance with airtight combustion circuit and forced air draft. It is designed for an indoor installation - inside the area to be heated. It is adjustable for the use of Natural Gas (G20) and L.P.G. (G30/G31) (appliance belonging to the II2H3B/P category according to the Standard EN 1020).
Series F2 80 C 1.
GENERAL INFORMATION AND TECHNICAL CHARACTERISTICS 1.4 TECHNICAL CHARACTERISTICS MODEL U.M. F2 80 C APPLIANCE CATEGORY II2H3B/P APPLIANCE TYPE C13 - C33 – C53 – C63 - B23 FEED GAS Natural Gas - L.P.G. NOMINAL HEAT INPUT kW 80 NOMINAL HEAT OUTPUT kW 73.6 m3/h kg/h kg/h 8,47 6,31 6,22 % 92 mbar 20 30 30 “ ¾F INTAKE PIPE DIAMETER mm 80 EXHAUST PIPE DIAMETER mm NOMINAL GAS CONSUMPTION (15° C – 1013 mbar) NATURAL GAS L.P.G. G30 L.P.G.
Series F2 80 C 1.5 DIMENSIONS OF THE F2 C SERIES GAS FIRED UNIT HEATERS Figure 1 – Dimensions of F2 80 C 12 Ed.
END USER SECTION 2: END USER In this section you can find all the necessary instructions for a correct operation of the F2 C Series gas fired unit heaters. The operation of the F2 C Series gas fired unit heaters are governed by a room thermostat (not supplied but available as accessory) and the remote control provided with the heater (see Figure 2). Here below you can find all the necessary instructions for the correct use of the remote control. 2.
Series F2 80 C 2.2 HOW TO TURN ON AND OFF THE HEATER The heater must be turn on for the first time by qualified service engineers. ! Before starting the heater, qualified service engineers must check that: ! ! ! ! the rating data are compatible with those of the gas and power supply lines; the calibration is compatible with the heater power; the flue exhaust duct is working properly; the combustion air intake and flue exhaust are carried out correctly according to the existing standards.
END USER SWITCHING-OFF To Have: the heater connected to the gas and power supply lines. 10 - To turn off the heater set the room thermostat to the minimum value. The burner will turn off, while fans will continue to work until the appliance is completely cooled. is absolutely forbidden to turn off the heater by cutting the power off since this ! Itoperation can damage the appliance. If you cut the power to the heater the axial fans stop working immediately and the limit thermostat is activated.
Series F2 80 C 16 Ed.
PLUMBING INSTALLER SECTION 3: PLUMBING INSTALLER In this section you can find all the necessary instructions to install F2 C Series heaters from the hydraulic point of view. 3.1 GENERAL HEATER INSTALLATION REQUIREMENTS The installation shall be made, according to the Manufacturer’s instructions, by qualified service engineers. By Qualified Service Engineers we mean the personnel with specific technical skills in the field of the heating system components.
Series F2 80 C L.P.G. (Propane – Butane Mix) For the first pressure drop required in the supply, it is advisable to install a pressure regulator near the liquid gas tank so as to reduce the pressure to 1.5 bar. A pressure regulator for a second pressure drop should be placed near the heater to reduce the pressure from 1.5 bar to 30 mbar (306 mm H2O) (allowed tolerance between 20 mbar and 35 mbar). L.P.G.
PLUMBING INSTALLER - C53 type installation: room sealed combustion circuit appliance with inlet air supply and outlet of exhaust gases by using separated ducts on different WALLS of the building and far the one from the other: for example, the air inlet duct from the wall behind the appliance and the flue exhaust duct far from the appliance or on the roof (see Figure 15, Figure 16, Figure 17, Figure 18 and Figure 19 starting from page 27).
Series F2 80 C DATA TO CALCULATE THE PRESSURE DROP FOR AIR INTAKE/FLUE EXHAUST PIPES PURCHASED ON THE MARKET Mod.
PLUMBING INSTALLER C13 INSTALLATION W/Ø 80 SEPARATE PIPES MAXIMUM ALLOWED LENGTHS (m) AIR PIPE Ø 80 F2 80 C CAUTION: FLUE PIPE Ø 80 INSTALLATION NOT POSSIBLE the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops.
Series F2 80 C C13 WALL COAXIAL INSTALLATION W/Ø 130 PIPES MAXIMUM ALLOWED LENGTHS (m) F2 80 C CAUTION: AIR PIPE Ø 130 FLUE PIPE Ø 130 20* 20* the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
PLUMBING INSTALLER INSTALLATION C13 C/AIR PIPE Ø 80 AND FLUE PIPE Ø 130 MAXIMUM ALLOWED LENGTHS (m) F2 80 C CAUTION: AIR PIPE Ø 80 FLUE PIPE Ø 130 3 20* the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
Series F2 80 C B23 INSTALLATION W/Ø 80 FLUE PIPE MAXIMUM ALLOWED LENGTHS (m) FLUE PIPE Ø 80 F2 80 C CAUTION: INSTALLATION NOT POSSIBLE the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops.
PLUMBING INSTALLER B23 INSTALLATION C/FLUE PIPE Ø 130 MAXIMUM ALLOWED LENGTHS (m) FLUE PIPE Ø 130 F2 80 C CAUTION: 20* the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
Series F2 80 C B23 INSTALLATION W/Ø 110 ROOF FLUE PIPE MAXIMUM ALLOWED LENGTHS (m) FLUE PIPE Ø 110 F2 80 C CAUTION: 20* the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
PLUMBING INSTALLER C53 INSTALLATION W/Ø 80 PIPES MAXIMUM ALLOWED LENGTHS (m) AIR PIPE Ø 80 INSTALLATION NOT POSSIBLE F2 80 C CAUTION: FLUE PIPE Ø 80 the above-listed lengths are applicable only if the flue pipe follows a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
Series F2 80 C C53 INSTALLATION C/PIPES Ø 130 MAXIMUM ALLOWED LENGTHS (m) F2 80 C CAUTION: AIR PIPE Ø 130 FLUE PIPE Ø 130 20* 20* the above-listed lengths are applicable only if the air and flue pipes follow a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
PLUMBING INSTALLER C53 INSTALLATION C/AIR PIPE Ø 80 AND FLUE PIPE Ø 130 MAXIMUM ALLOWED LENGTHS (m) F2 80 C CAUTION: AIR PIPE Ø 80 FLUE PIPE Ø 130 3 20* the above-listed lengths are applicable only if the air and flue pipes follow a linear path as shown in Figure. Otherwise, you need to calculate the relevant pressure drops. * For installations with pipes length more than 20 meters we kindly advise to contact pre-sale service of Robur S.p.A.
Series F2 80 C 3.4 DUCTING SYSTEM PRESSURE DROP FOR DISTRIBUTION/INTAKE AMBIENT AIR F2 C gas fired unit heater is equipped with a diam 224mm pulley and n. 1 diam. 200 mm pulley (not mounted). During the installation verify that the sum of the pressure drop of the ducting system for the distribution of the warm air and the pressure drop of the internal/external air intake duct system is between the values indicated in the chart of the Table 7.
PLUMBING INSTALLER Rapporto portata/prevalenza F2 80 C (senza camera di miscela) Resistenza (Pa) 300 250 Puleggia d-224 200 150 100 50 0 5500 6000 6500 7000 7500 8000 8500 9000 Portata Aria (m3/h) Rapporto portata/prevalenza per F2 80 C con camera di miscela Resistenza (Pa) 300 250 Puleggia d-224 200 Puleggia d-200 150 100 50 0 5500 6000 6500 7000 7500 8000 8500 9000 Portata aria (m3/h) Table 7 – Range available pressure drop Ed.
Series F2 80 C 32 Ed.
ELECTRICAL INSTALLATION TECHNICIAN SECTION 4: ELECTRICAL INSTALLATION TECHNICIAN In this section you can find all the necessary instructions to make the electrical connections for the F2 C Series gas fired unit heaters. 4.1 HOW TO CONNECT THE HEATER TO THE POWER SUPPLY To Have: the heater installed. The electrical connections must be made by qualified personnel. Before performing this operation, cut off the electrical supply. 1- Check that the supply voltage is 400V / 50Hz. 3 phase plus N.
Series F2 80 C 4.2 HOW TO INSTALL THE ROOM THERMOSTAT The electrical connections must be made by qualified personnel. Before performing this operation, cut off the electrical supply. To install the room thermostat (available as accessory) proceed as follows: 1. Find the position where to install the room thermostat by trying to place it at 1.
ELECTRICAL INSTALLATION TECHNICIAN 4.3 HOW TO INSTALL THE REMOTE CONTROL BOX The electrical connections must be made by qualified personnel. Before performing this operation, cut off the electrical supply. To install the remote control box proceed as follows: 1. Fix the control box in the desired position(maximum distance 200 metres from the gas unit heater) by means of expansion bolts. 2.
Series F2 80 C Installation wiring diagram Figure 22 – Installation wiring diagram of F2 C series heaters 36 Ed.
ELECTRICAL INSTALLATION TECHNICIAN ATTENTION Each heater must be connected to its remote control box Wiring diagram for multiple heaters installation with one programmer Figure 23 – Wiring diagram for multiple heaters installation with one programmer and several room thermostats Ed.06/2011 OE SUMMER PROGRAMMABLE TIMER OI WINTER PROGRAMMABLE TIMER S SUMMER/WINTER SWITCH R1-3 RELÈ FOR THE WINTER FUNCTIONING OF THE HEATERS R1’-3’ RELÈ FOR THE SUMMER FUNCTIONING OF THE HEATERS T. A.
Series F2 80 C Ed. 06/2011 Figure 24 – Wiring diagram for multiple heaters installation with one programmer and one room thermostat 38 OE SUMMER PROGRAMMABLE TIMER OI WINTER PROGRAMMABLE TIMER S SUMMER/WINTER SWITCH R1-3 RELÈ FOR THE WINTER FUNCTIONING OF THE HEATERS R1’-3’ RELÈ FOR THE SUMMER FUNCTIONING OF THE HEATERS T.A.
MAINTENANCE AND SERVICING SECTION 5: MAINTENANCE AND SERVICING In this section you can find a few maintenance suggestions and the instructions which are necessary to technical assistants in order to adjust the gas valve and replace the gas. 5.1 HOW TO ADJUST THE GAS VALVE For a correct operation of the F2 Series gas fired unit heaters it is necessary that the calibration values of the gas valve are equal to those indicated in the table here below.
Series F2 80 C A B A B C PRESSURE CONNECTOR FOR OFF-SET ADJUSTMENT GAS SUPPLY PRESSURE CONNECTOR OFF SET CONNECTOR C Figure 25 – Sit 822 Novamix VALVE 4- Verify that the CO2 percentage matches the value indicated in Table 4 at page 20. Otherwise, readjust the off-set, which in any case MUST never be higher than the maximum off-set value (see Table 8) or lower than the minimum off-set value (see Table 8), until the CO2 percentage is equal to the value specified in Table 4 at page 20.
MAINTENANCE AND SERVICING 9- Replace the label applied to the heater showing the type of gas for which the unit is set with the other one indicating the type of gas actually used. NATURAL GAS AND L.P.G.
Series F2 80 C 5.3 MAINTENANCE An accurate maintenance is always source of saving and safety. Maintenance for heating units must be done, preferably at the beginning of winter, by qualified service engineers. To ensure a correct and continuous operation it is recommended to carry out, at least once a year, a general cleaning of the appliance (by paying particular attention to clean heat exchangers and fan grids) e the combustion tests in conformity with specific regulations on the matter. 5.
MAINTENANCE AND SERVICING 5.5 FAULTS AND SOLUTIONS Before performing particular tests, make sure that: A) The power supply is connected: 230 V ± 10% 50 Hz and the appliance is properly grounded. B) The gas supply is connected. C) Pressures and flow rates are within the predefined limits. An insufficient gas supply corresponds to a pressure value lower than that indicated by the Manufacturer. The causes can be: If the appliance runs on Natural Gas: - a) Insufficient counter.
Series F2 80 C LED SIGNAL FAULT DESCRIPTION CAUSES ! ! ! ! ! Steady Flame lockout due to the failed burner ignition ! ! Limit thermostat Flashing (on: 4 operation due to the sec. off: 1 overheating of the heat sec.) exchangers Flashing (on: 1 Exchanger temperature sec. off: 4 sensor damaged sec.) Flashing (on: 1 Air pressure switch sec. off: 4 consensus failed sec.
Code:D-LBR552 11MCMSDC015 06/06/2011 Revision: C Robur is dedicated to dynamic progression in research, devepment 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.
