Hazloc Heaters XEU1 Explosion Proof Electric Air Heaters | CSA Hazardous Area Heaters

Explosion Proof Electric Air Heater

CSA Certified

Hazloc XEU1 explosion proof electric air heater is a CSA certified hazardous area heater specifically designed to meet the demanding requirements of the explosive atmosphere and hazardous area industries.

The harsh operating conditions of heavy industry require electric heating equipment that is safe, reliable, dependable and certified according to the hazardous area classification.

XEU1 heaters are designed to provide either primary or supplementary heating for comfort or for freeze protection in areas that are classified by CSA as hazardous locations (Gas and Dust atmospheres) – see IECEx and ATEX explosion proof heaters for models certified according international & European classifications.

• Class I, Division 1 & 2, Groups C & D
• Class II, Division 1 & 2, Groups F & G
• Temperature Code T3B (3kW/35kW = T3A)
• Class I, Zone 1 & 2, Groups IIA & IIB, T3

Hazloc Heaters XEu1

Product Benefits

All Hazloc Heaters XEU1 models have been designed to meet U.S. and Canadian (CSA) certification standards and the spark-resistant fan assembly is also compliant to AMCA 99-10, Type B.

There are three sizes of air heater in the Hazloc XEU1 range, all of which include ExCaliber high performance liquid-to-air heat-exchanger cores. These are available in thirty five models, all with varying voltage and heat output combinations to meet the specific requirements of the end user.

The XEU1 electric air heater is rugged and versatile and incorporates a high quality immersion heater, high performance fan and motor assembly, a sturdy 14 GA steel cabinet with a yellow epoxy/polyester powder-coating for corrosion resistance, a large control enclosure with an extra port for convenient wiring of an external room thermostat  and enclosure O-rings to minimise any ingress of moisture.

XEU1 heaters are suitable for a wide variety of applications which include, but are not limited to, oil & gas drilling rigs, petrochemical facilities, refineries, chemical storage and handling facilities, paint storage areas, sewage treatment plants, aircraft servicing areas, grain elevators, coal preparation areas, and other areas which are subject to combustible dusts such as flour, wood, plastics or chemicals.

ExCaliber Liquid-to-Air Heat-Exchanger Cores

All XEU1 ExCaliber liquid-to-air heat-exchanger cores are evacuated, sealed and constructed using rugged carbon-steel tubes with copperfree, roll-formed aluminium fins in order to maximise heat transfer and carbon-steel headers for maximum durability, resistance to corrosion, and a longer life in demanding applications. The cores are protected by a pressure relief device, automatic reset high limit, and a back-up manual reset high limit.

The XEU1 heater has the highest air temperature rise, on average, in the industry across the complete kW range.

ExCaliber heat-exchanger core is easy to remove when required.

Key Features of Hazloc Heaters XEU1

• Aluminium louvres attached to dimpled cabinet panels for easy control of air flow direction
• Four mounting holes in top panel for dynamic load mounting
• High-quality pressure relief device prevents premature venting
• Stiffened top panel improves mounting strength
• 1″ NPT main electrical entry – no disconnect fitted & 1″ NPT main electrical entry for disconnect option
• Additional 3/4″ NPT entry for installation of remote room thermostat
• Large control box & opening for easy access to controls
• Aluminium fan blade with easy-off replacement feature
• Epoxy/Polyester coated 14-gauge steel cabinet construction for durability
• Robust three-piece motor mount design prevents premature cracking
• Automatic and manual high limits in element enclosure housing for added protection
• Optional built-in room thermostat T1 (Bi-metal) or T2 (Electronic)
• Epoxy coated split fan guard for easy access to fan blade
• Roll formed fin tubes for longer life & better performance
• O-rings on control & element enclosure lids to minimise moisture ingress
• 120VAC controls (24VAC option)
• Optional LED pilot light, built-in room thermostat & disconnect switch

Hazloc Heaters XEU1 – Technical Specification

Hazardous Area Approvals	Certification	CCSAUS 235730 – Certified to Canadian and U.S. standards
	North American Hazardous Location Classifications	Class I, Division 1 & 2, Groups C & D Class II, Division 1 & 2, Groups F & G Temperature Code T3B (3kW/35kW =T3A)
		Class I, Zone 1 & 2, Groups IIA & IIB, T3
	Temperature Code	Division System – T3B 165°C (329°F); [3kW/35kW = T3A 180°C (356°F)] Zone System – T3 200°C (392°F)
Cabinet	Cabinet Material	14-gauge (0.075 in.) (1.9 mm) steel. Yellow epoxy/polyester powder coated with five-stage pre-treatment, including iron phosphate
	Fan Guard	Split design with close wire spacing. A 3/8 in. (9.5 mm) diameter probe will not enter. Black polyester powder coated
	Louvre Blades	Anodised extruded aluminium
	Conduit Materials & Fittings	Plated steel and aluminium alloy for corrosion resistance
	Fasteners	Zinc plated steel for corrosion resistance
	Enclosures	Cast aluminium (non-copper alloy) NEMA 7 & 9 type with O-ring
	Mounting Holes	9/16” diameter holes – Four located on the top face of heater
Motor/Fan	Motor Type	Explosion-proof, thermally protected, 1725 RPM permanently lubricated ball bearing type with 56 frame and “easy-off” fan blade replacement feature
	Fan	Three-blade spark-resistant aluminium, steel spider and hub with 5/8 in. bore
	Fan Shroud	Spark-resistant aluminium. Compliant to AMCA 99-10, Type B
Heat Exchanger	Heating Elements	Long-life, low watt-density, high grade metal-sheathed
	Heat Transfer Fluid	Ethylene glycol and water including corrosion inhibitors
	Header Material	Carbon steel
	ExCaliber Core	Carbon steel headers and element housing with O-ring. Fin tubes are carbon steel tubes with copper-free, roll-formed aluminium fins @ 10 fins per in. Vacuum sealed. Coated with black, high-heat enamel
Protection	Temperature High Limits	One automatic reset rated for 100,000 cycles, and one manual reset. Both are snap-action bi-metal type, open on temperature rise
	Pressure Relief	High-quality stainless steel pressure relief device
Controls	Control Circuit	Built-in 120VAC or 24VAC control (24VAC recommended)
	Control Contactor	40 FLA (50A resistive per pole) Definite Purpose. Rated for 500,000 mechanical operations.
	Control Transformer	Multitap primary, 120VAC or 24VAC secondary
	Fuse Protection	Thermal delay fuse with spare, .25” x 1.25” , 120VAC = 1/4A, 24VAC = 1A
	Room Thermostat With Lockable Temperature Dial (option code T1 or T2)	Built-in, BTX1-N-A (T1) or XET1-1-N-A (T2) explosion-proof thermostat, 40°F to 80°F (5°C to 25°C). Conduit is factory sealed between enclosures. Wall mount thermostats also available. Note: Optional BLK1-N-A thermostat conversion kit allows simple interchangeability from a built-in to a wall mount configuration.
Load Isolation	Disconnect Switch	Built-in, XDC-01 explosion-proof disconnect switch, 600VAC, 50A max with lock-out feature. Conduit is factory sealed between enclosures. Also available in a wall mount version.
Additional Options	Pilot Light	Built-in “Heat on” Green LED pilot light with lens guard
	Continuous Fan	Continuous fan operation. Circulates air and prevents gas pockets from forming
	Heresite Coating	H1 = Heresite Core; or H2 = Heresite Cabinet (includes louvers & fan blade); or H3 = Heresite Core and Cabinet. Note: Contact T&D for Heresite delivery lead time.
Operating Limits	Ambient Temperature	-40°F to 104°F (-40°C to 40°C). Storage: -58°F to 140°F (-50°C to 60°C)
	Maximum Altitude	10,000 ft (3048 m) above sea level

HAZLOC XEU1 – PRODUCT RANGE

XEU1 Specifications By Model Size

Heater Model	XEU1-12				XEU1-16		XEU1-20
Fan diameter	12″ (304.8mm)				16″ (406.4mm)		20″ (508.0mm)
Nominal kW	3	5	7.5	10	15	20	25	30	35
Air Delivery	350 cfm 595 m³/hr	400 cfm 680 m³/hr	600 cfm 1019 m³/hr	800 cfm 1359 m³/hr	1200 cfm 2039 m³/hr	1700 cfm 2888 m³/hr	2100 cfm 3568 m³/hr	3000 cfm 5097 m³/hr	3000 cfm 5097 m³/hr
Approximate Air Velocity	422fpm 2.1 m/s	479 fpm 2.4 m/s	718 fpm 3.6 m/s	958 fpm 5.9 m/s	808 fpm 4.1 m/s	1145 fpm 5.8 m/s	916 fpm 4.6 m/s	1309 fpm 6.6 m/s	1309 fpm 6.6 m/s
Approximate Horizontal Air Throw	13 ft 3.9 m	15 ft 4.6 m	22 ft 6.7 m	30 ft 9.1 m	33 ft 10.1 m	46 ft 14.0 m	41 ft 12.5 m	61 ft 18.6 m	61 ft 18.6 m
Motor Power	¼ hp (186 watts)				¼ hp (186 watts)		½ hp (373 watts)
Maximum Mounting Height (to underside of heater)	7 ft 2.1 m	7 ft 2.1 m	7.5 ft 2.3 m	9.5 ft 2.9 m	10 ft 3.0 m	11 ft 3.4 m	12 ft 3.6 m	15 ft 4.6 m	15 ft 4.6 m

 

Hazloc heaters | HEATING APPLICATIONS

Hazloc Heaters are global suppliers and manufacturers of industrial and explosion-proof heaters and thermostats for hazardous areas and severe duty locations – this includes industrial heating products for non-hazardous and severe-duty applications. Explosion proof and hazardous area certifications include North American (NEC & CE), International (CENELEC & IEC), European (ATEX) and Russian EAEU (EAC EX).

Data Sheets

• Hazloc XEU1 Explosion Proof Electric Air Heater – Data Sheet
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• Hazloc XEU1 Explosion Proof Electric Air Heater – Owners Manual
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