BENSON MH300 User Instructions Download Page 2 | Manualshive

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Summary of Contents for MH300

Page 1: ...BENSON MH300 OIL FIRED MARQUEE HEATER I N S T A L L A T I O N C O M M I S S I O N I N G S E R V I C I N G U S E R I N S T R U C T I O N S...

Page 2: ......

Page 3: ...work Fittings 8 2 7 Oil installation and Connection 8 2 8 Electrical Supply 8 2 9 Air Supply 9 2 10 Air Distribution 10 2 11 Flue System 11 3 0 Installation 11 3 1 Electrical installation Connection...

Page 4: ...on Heating to ensure that they are familiar with the appropriate information manuals supplied by the manufacturer and that they are suitably aware of the purpose of the manuals and the safety instruct...

Page 5: ...Warning Unauthorised modifications to the appliance or departure from the manufacturers guidance on intended use or installation contrary to the manufacturers recommendations may constitute a hazard N...

Page 6: ...n to enable processing to take place 1 Heater model 2 Heater serial number 3 Order reference date of order together with full installation details name and address 4 Details or symptoms of fault Fault...

Page 7: ...ll below the cold filter plugging point cfpp in this country and with class D fuel also referred to as gas oil The critical temperature is 4oC for this summer grade The cfpp critical temperature for t...

Page 8: ...let and towards the sludge drain valve which must be sited at the lowest point in the tank If the tank is positioned on supports then there must be an adequate protective layer between tank and suppor...

Page 9: ...space being heated And The building design air change rate is less than 0 5 air changes per hour and the volume of the space is greater than 4 7m3 per kilowatt then low level ventilation is required...

Page 10: ...06m3 h per kW of rated heat input Mechanical ventilation systems where fitted must be provided with safety interlocks to prevent heater operation in case of air flow failure 2 9 3 Ventilation Openings...

Page 11: ...stant to internal and external corrosion and be capable of withstanding the stresses and loadings associated with normal use 3 0 Installation 3 1 Electrical Installation Connection Benson MH 300 cabin...

Page 12: ...rs undergo a rigorous test programme prior to being dispatched whilst such a programme does involve pre commissioning and setting up the heater to operate efficiently and well within its designed oper...

Page 13: ...position for heater on off switch f Check for the following burner sequence Interval Operand 1 5s Combustion air damper actuated burner fan motor initiates purge cycle 2 15s Solenoid valve opens ignit...

Page 14: ...settings should be only very finely adjusted to achieve a CO2 reading of 12 5 0 5 Note ii The gross efficiency must be approximately 80 Note iii All Heaters are test fired and pre commissioned as par...

Page 15: ...ding environment and the need for regular servicing carried out by competent and qualified persons Caution After approximately 100 hours of running the tension of the fan belts must be checked to ensu...

Page 16: ...Fan Motor Remove access panel Dust and other foreign matter should be cleaned by blowing over with compressed air and through the use of a soft bristle brush and cloth Solvent wipes may be used to re...

Page 17: ...ne belt contains more slack than its accompanying belts then all the belts on the unit must be replaced again using a common batch code Replacement and tensioning is carried out as follows Note The ma...

Page 18: ...ecked to ensure that they are secure and free from corrosion Terminals and connections should also be checked to ensure that no stray strands are bridging terminals Electrical continuity should also b...

Page 19: ...out Occurs Fuel Feed Incorrect Check that the Oil Pressure is correct Check that Head of Gravity is Sufficient Check that the suction Lift is not too great two pipe system Check that the Bypass Plug i...

Page 20: ...Line Check Fuel Pressure Check Nozzle Check Filter Check Fuel Lines Check Valves Burner gives a smokey flame Poor Combustion Insufficient Combustion Air Inadequate Flue Draught Check Oil Pressure Che...

Page 21: ...ockout Warm Air Short Circuit Adjust Warm Air Discharge and Cool Air Inlet Accordingly Check for High Resistance Check Outlet Grilles are not shut or Check Filter is Clear Insufficient Air Flow over t...

Page 22: ...Wiring Diagram 20 49 146...

Page 23: ...tic pressure full load pa 750 Discharge velocity full load M s 19 5 Noise level full load Dba 1 m 90 Heat Input part load kW 225 Heat output part load kW 180 Nett efficiency part load 90 5 Gross effic...

Page 24: ...nnection size Bsp 1 4 Fuel specification 35 sec Head setting 5 Air shutter Hi Lo 70 28 Electrical supply V Hz Ph 415 50 3 Fuse Size Amps 6 Maximum running current Amps 16 Flue diameter mm 225 Overheat...

Page 25: ...magnetic Compatibility BS EN 50165 1995 Safety of Electrical Equipment BS 5854 1980 Code of Practice Flues Flue Structures BS 799 Part 5 1987 Oil Burning Equipment oil tanks OFTEC OFS T 100 Polyethyle...

Page 26: ...Benson Heating Ludlow Road Knighton Powys LD7 1LP Telephone 44 0 1547 528534 Facsimile 44 0 1547 520399 Email information bensonheating co uk www bensonheating com...

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