6BS EN 60204 - Part 1Safety of Machinery - Electrical Equipmentfor Machines Specification for GeneralRequirementsBS EN 60335 - Part 1Safety of Household and Similar ElectricalAppliances General Requirements.BS EN 55014Limits and methods of measurement ofradio disturbance characteristics of electricalmotor-operated and thermal appliances forhousehold and similar purposes, electricaltools and similar electric apparatus.BS EN 50165Electrical Equipment of non-electric heatingappliances for household and similarpurposes, safety requirements.The Harry Taylor Ltd Variante range of gasunit heaters meet with the governmentcriteria in respect of the Enhanced CapitalAllowance Scheme.1.1 Certificates of conformityDeclarations and Certificates are availableupon request from the Quality ControlDepartment at Harry Taylor Ltd.1.2 General product informationThe Harry Taylor Ltd Bi Directional Varianterange includes for 4 model sizes withoutputs from 72.0 kW to 144.0 kW,Variante heaters are suitable for operationon natural gas (G20) or LPG (Propane G31)The Model Range is made up as followsVariante heaters have been approved foralternative flue discharge arrangementsThese are detailed in following pagesCabinetManufactured from electro-zinc coated steel,finished in a durable stove enamelledpolyester powder paint.Heat ExchangerManufactured from aluminised/stainlessdimpled steel tube*.*specified at time of ordering.Flue / Combustion Air SpigotEach heater is fitted with two spigots both ofwhich are located to the rear of theapplianceOne of the pair is for connection for the fluewhilst the other is a screened combustion airintake.WARNING(SEE FLUE INSTALLATION 2.5 PAGE 14)BurnerThe induced draught multi in-shot burnerassembly is manufactured from aluzinccoated steel and mounted to a commonsteel manifold which can be easilywithdrawn through the burner accesscompartment.Burner ControlThe heaters are fitted with automatic ignitionfor all models within the range.Exhaust FanCombustion gases are evacuated toatmosphere via an in built power flue venterfan which is safety interlocked to the gasvalve via an air pressure proving device.Air Movement FanVRABD are supplied with an Axial fan forfree blowing applications.Note:Neither asbestos nor soft soldered joints areused in the construction or manufacture ofthe Harry Taylor Ltd range of Heaters.The materials selected for use canwithstand the mechanical, chemical, andModel No 72 95 120 145Output kW 72.0 96.0 120.0 144.0