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1.0 Compliance notices 

 
The Benson MH 300 oil fired Heater detailed 
herewith is manufactured by Benson Heating within 
a strictly controlled quality environment within the 
parameters of ISO 9001.2000 
 
The Benson MH 300 has been tested and assessed 
for compliance with the following European 
Directives. 
 
      Machinery Directive (89/392/EEC) 

 Low Voltage Directive (73/23/EEC &   93/68/

EEC) 

      Electromagnetic Compatibility Directive 
                 (89/336/EEC & 91/31/EEC) 
 
      Product Liability Directive (65/374/EEC) 
 
The manufacturer has taken reasonable and 
practical steps to ensure that Benson MH 300  
Heaters are safe and without risk when properly 
used. These heaters should therefore only be used 
in the manner and purpose for which they were 
intended, and in accordance with the 
recommendations detailed herewith. The heaters 
have been designed, manufactured, assembled, 
inspected, and tested, with safety and quality in 
mind, there are certain basic precautions which the 
installer and user should be aware of, and they are 
strongly advised to read the appropriate sections of 
the information pack accompanying the heater, 
prior to installation or use. 
 
Benson Heating supports all new products being 
supplied to their customers with a comprehensive 
information pack; this clearly defines mandatory 
instructions for the safe installation, use, and 
maintenance, of the appliance(s). 
 
Where proprietary items are incorporated into 
Benson Heating products, detailed information and 
instructions are also provided as part of the 
information pack. 
 
It is the responsibility of the installer, owner, user, or 
hirer, of such products supplied by Benson 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 instructions. In addition, 
operators must be suitably trained in the use of the 
appliance so as to ensure its continued safe and 
efficient use. 
Benson Heating has a commitment to continuous 
improvement, and therefore reserves the right to 
amend or change the specification of the MH 300 
Heater subject to compliance with the appropriate 
European, national, and local regulations. 
 
Contained within the text of the manual, the words 

'Caution' and 'Warning' 

are used to highlight 

certain points. 
 

Caution

 is used when failure to follow or implement 

the instruction(s) can lead to premature failure or 
damage to the heater or its component parts. 
 

Warning 

is used when failure to heed or implement 

the instruction(s) can lead to not only component 
damage, but also to a hazardous situation being 
created where there is a risk of personal injury. 
 
The Benson MH 300 Oil fired heaters conform to 
the following harmonized standards; 
 
BS EN 292    -  Part 1 : 1991 
Safety of Machinery - Basic Concepts, General 
Principles for Design Basic terminology, 
methodology 
 
BS EN 292    -  Part 2 : 1991 
Safety of Machinery - Basic Concepts, General 
Principles for Design Technical Principles and 
Specifications  
 
BS EN 60204  -  Part 1 : 1993 
Safety of Machinery - Electrical Equipment for 
Machines Specification for General Requirements  
 
BS EN 60335  -  Part 1 : 1988 
Safety of Household and Similar Electrical 
Appliances General Requirements  
 
BS EN 55014  -  1993 
Limits and methods of measurement of radio 
disturbance characteristics of electrical motor-
operated and thermal appliances for household and 
similar purposes, electrical tools and similar electric 
apparatus 

Содержание MH300

Страница 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...

Страница 2: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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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