Heat Exchanger Unit Heaters

FR - Frost Resistant Heat Exchanger Unit Heater

Ruffneck™ FR Heat Exchanger Unit Heaters are extra heavy duty (including heavy gauge steel construction) to meet the most demanding service and long life requirements for rugged industrial applications. The FR Series heaters are specifically designed for steam applications that may be subject to freezing conditions, and are of particular value for outdoor applications. They gain their resistance to frost damage through the use of rectangular top and bottom headers. Explosion-proof models suitable for hazardous locations are available on custom order.

Features & Benefits At A Glance

  • models range from 115-575V; General Purpose or explosion-proof available
  • rectangular top and bottom headers distort to a circular shape during accidental freeze-up without serious damage
  • epoxy-coated 14-gauge steel cabinet construction
  • plated capscrew fasteners; no sheet metal screws used
  • steel construction core with tension-wound, close fitting aluminum fins
  • highly resistant to corrosive agents, including hydrogen sulphide
  • pressure ratings based on a nominal 5:1 safety factor; designed for pressures up to 100 psi; all units are 100% leak tested
  • engineered for easy maintenance, all parts are easily removed; core is fully removable without disturbing heater mounting arrangement or electrical connections
  • available in a single-pass configuration, best suited to steam and high flow rate liquid applications
  • narrow-gap, epoxy coated fan guard
  • optional Heresite® coating on core and/or cabinet for severe corrosive environments
  • UL-listed/CSA-approved motors available
  • all models are Canadian CRN approved and EAC marked
  • CSA certified for the following Hazardous Location Classifications: Class I, Divisions 1 & 2, Groups C & D; Class II, Division 1 & 2, Groups E, F, & G; Class III, Division 1 & 2; Temperature Code T3B
  • certified Built-In disconnect available on all models

 

HP - High Pressure Heat Exchanger Unit Heater

Ruffneck™ HP Heat Exchanger Unit Heaters are extra heavy duty (including heavy gauge steel construction) to meet the most demanding service and long life requirements for rugged industrial applications, such as space heating and liquid cooling. The HP Series heaters are suitable for a wide range of heating fluids including steam, hot water, glycol, oil, etc.. Explosion-proof models suitable for hazardous locations are available on custom order.

Features & Benefits At A Glance

  • models range from 115-575V; General Purpose or explosion-proof available
  • semicircular headers to withstand high operating pressures for steam or liquid service
  • epoxy coated 14-gauge steel cabinet construction
  • plated capscrew fasteners; no sheet metal screws used
  • steel construction core with tension-wound, close fitting aluminum fins
  • highly resistant to corrosive agents, including hydrogen sulphide
  • pressure ratings based on a nominal 5:1 safety factor; designed for pressures up to 400 psi; all units are 100% leak tested
  • engineered for easy maintenance, all parts are easily removed; core is fully removable without disturbing heater mounting arrangement or electrical connections
  • available in single-pass or multi-pass configurations (multi-pass for liquid service only)
  • narrow-gap, epoxy coated fan guard
  • optional Heresite® coating on core and/or cabinet for severe corrosive environments
  • UL-listed/CSA-approved motors available
  • all models are Canadian CRN approved and EAC marked
  • CSA certified for the following Hazardous Location Classifications: Class I, Divisions 1 & 2, Groups C & D; Class II, Division 1 & 2, Groups E, F, & G; Class III, Division 1 & 2; Temperature Code T3B
  • certified Built-In disconnect available on all models

 

AH - Advanced Horizontal Unit Heater

Ruffneck™ AH Series Advanced Horizontal Unit Heaters are designed for rugged industrial applications and can be used with a variety of heat transfer fluids such as steam, circulating hot water, and glycol heating systems or in liquid cooling applications, including flash stream condensers, lube oil coolers, pump seal coolers and more. Explosion-proof models suitable for hazardous locations are also available on custom order.

Features & Benefits At A Glance

  • models range from 115-440V and 6,000-1,200,000 BTU/hr
  • maximum operating pressure of 450 psi; maximum operating temperature of 650°F
  • 1.5" NPT male inlet and outlet connections for reduced costs and easy installation; other connections available (check factory for availability)
  • extruded aluminum louvers provide two-way directional control of discharge air
  • bolt-together cabinet offers easy, convenient maintenance and cleaning without disturbing the mounting arrangement or electrical connections
  • optional Heresite® coating available for demanding corrosive environments
  • heavy gauge embossed, high performance fan blade for long life and improved air flow
  • epoxy powder coated, split fan guard for safety and easy replacement
  • UL-listed and/or CSA-approved motors; General Purpose or explosion-proof available
  • all models are Canadian CRN approved
  • CSA certified for the following Hazardous Location Classifications: Class I, Divisions 1 & 2, Groups C & D; Class II, Division 1 & 2, Groups E, F, & G; Class III, Division 1 & 2; Temperature Code T3B
  • certified Built-In disconnect available on all models

 

AV - Advanced Vertical Unit Heater

Ruffneck™ AV Series Advanced Vertical Throw Unit Heaters are designed for rugged industrial applications meeting the most demanding service and long life requirements. While perfect for steam, circulating hot water or glycol heating systems, these heaters are also suitable for a wide range of other heating fluids. In addition, they can be used for both space heating and liquid cooling applications. Explosion-proof models suitable for hazardous locations available on custom order.

Features & Benefits At A Glance

  • models range from 115-440V and 6,000-1,200,000 BTU/hr
  • maximum operating pressure and temperature rating of 450 psi and 650°F
  • epoxy powder coated cabinet and nozzle; optional Heresite® coated or stainless steel cabinet available for demanding corrosive environments
  • anodized extruded aluminum louver blades
  • UL-listed and/or CSA-approved motors; general purpose or explosion-proof available
  • all models are Canadian CRN approved
Blejwas Associates, Inc.
221-A Evans Way • Branchburg, NJ 08876
Tel: (908) 253-8822 • Fax: (908) 253-8833
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