Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
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ComfortDRAPortable Spot IndustrialSalam<strong>and</strong>er Blower <strong>Heat</strong>er• 7.5 to 30 kW• 25,590 to 102,360 BTUH• 208, 240, 480 <strong>and</strong> 600 Volts• Single <strong>and</strong> Three Phase• No Assembly Required• Built-in <strong>Control</strong>sDimensions (Inches)(16-1/2 I.D.)(20-9/16)DescriptionThe <strong>Chromalox</strong> DRA Dragon is a ruggedindustrial grade, self contained, highly mobile,electric blower heater. The DRA can be leftunattended without the threat of poisoningfrom combustion by-products associated withfuel fi red heaters. The built in safety featuresinclude an adjustable thermostat to controlthe outlet air temperature, auto-reset cutoutsfor the fan motor <strong>and</strong> heating elements. Thethermostat provides settings for full off, fanonly <strong>and</strong> temperature control in the heatingsetting. Dragon heaters feature a large, easilyaccessible control <strong>and</strong> wiring compartmentcontaining a magnetic contactor; additionalsafety is provided by a 120 volt control voltagetransformer <strong>and</strong> motor starter on 480 <strong>and</strong> 600volt units. The bright red polyester powdercoated heating cylinder is highly visible <strong>and</strong>can be rotated to direct heat or fan driven airmovement where it is needed. For assuredsafety, all st<strong>and</strong>ard units meet the requirementsof UL (File No. E7061) <strong>and</strong> CSA (FileNo. LR40859).Construction<strong>Heat</strong>ing CylinderA structural frame consisting of 2 spun steelrings <strong>and</strong> 2 formed steel channels support a20 gauge steel cylinder phosphate coated forcorrosion resistance, <strong>and</strong> fi nished in red polyesterpowder coat paint. The heating cylinderpivots vertically to direct air fl ow.34Leg AssemblyEach side consists of a one piece, 12 gauge,formed steel member, which accepts a steeltubular h<strong>and</strong>le, held in place with a 1 1/2"long x 1/4" bolt on each side. The h<strong>and</strong>lecan be raised from the shipping position ifdesired. The rubber, pneumatic wheels are 10"diameter <strong>and</strong> 3 1/2” wide to provide ease oftransporting the heater on irregular <strong>and</strong> gravelsurfaces. The large wheels make it easy to rollup stairways without damage to decorativestep surfaces.Fan AssemblyThe self-centering fan assembly consists of atotally enclosed, permanently lubricated motor<strong>and</strong> a dynamically balanced aluminum fanblade for smooth, quiet operation.<strong>Control</strong>s(27-11/16)(H<strong>and</strong>le FullyExtend 34-1/4)(23-7/16)A thermostat, with a temperature range of40°F to 100°F is included, with a full offposition, a fan only position <strong>and</strong> an adjustablerange of temperature settings in theheating mode position. Each unit includesa 3 pole magnetic contactor <strong>and</strong> auto-resetthermal cutout. 480 volt <strong>and</strong> 600 volt unitsalso include a motor relay <strong>and</strong> 120 volt controlvoltage transformer for personnel safety.(18-1/2 O.D.)Safety GuardsFront <strong>and</strong> rear grills are 10 gauge, fi nished inblack polyester powder coat <strong>and</strong> are designedto meet OSHA safety requirements.<strong>Heat</strong>ing AssemblyThe patented metal sheath Fintube ® heatingelements consist of steel fi ns furnace brazedon industrial grade .475 diameter steel sheathtubular heaters for maximum heat transfer.The elements are held in place with steelbulkhead fi ttings for durability. The elementsfeature a high temperature fi nish for corrosiveprotection.Applications• For Best Results Use in Enclosed Area withCeiling Heights Below 15'• Any Commercial or Industrial ApplicationNeeding Instant Fan Forced <strong>Heat</strong>• Building Construction• Curing Plaster <strong>and</strong> Concrete• Warming Workers• Thawing Frozen Pipes• Thawing Railroad Cars• <strong>Heat</strong>ing Large Tents• Non-Hazardous Areas