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HLA Series Hazardous Location Fan Forced Unit Heater
Rating Definitions
CLASS I:
Equipment does not have surface operating temperature in excess of the ignition temperature of the specific gas or vapor.
Application Examples:
• Offshore and land based drilling rigs, petroleum exploration and testing facilities.
• Petroleum refineries, gasoline storage and dispensing areas.
• Industrial firms that use flammable liquids in dip tanks for parts cleaning or other operations.
• Petrochemical companies that manufacture chemicals from gas or oil.
• Dry cleaning facilities where vapors from cleaning fluids may be present.
• Aircraft hangers and fuel servicing areas.
• Utility gas plants and operations involving storage and handling of liquefied petroleum or natural gas.
GROUP C:
Atmospheres such as but not limited to acetaldehyde, allyl alcohol, hydrogen sulfide, ethylene, carbon monoxide, or
other gases or vapors of equivalent hazard.
GROUP D:
Atmospheres such as but not limited to acetone, alcohol, gasoline, lacquer solvent vapors, natural gas, propane or
other gases or vapors of equivalent hazard.
CLASS II:
Equipment does not have surface temperature greater than the ignition temperature of the specified dust.
Application Examples:
• Coal preparation plants and other carbon handling or processing areas.
• Grain elevators, flour and feed mills.
• Plants which manufacture, use or store Magnesium or Aluminum powders.
• Plants that have chemical or metallurgical processes.
• Producers of starch products or candy.
• Spice grinding plants, sugar plants and cocoa plants.
GROUP E:
Atmosphere containing combustible metal dust regardless of resistivity, or other combustible dust of similar hazard
characteristics having resistivity of less than 10 5 OHM - Centimeter.
GROUP F:
Atmosphere containing carbon black, charcoal, coal or coke dust.
GROUP G:
Atmospheres containing combustible dust having resistivity of 10 5 OHM-Centimeter or greater.
DIVISION I:
A location in which ignitable concentrations of flammable material exist under normal operating conditions.
DIVISION II:
Locations in which flammable materials will normally be confined within closed containers and escape only in the
case of accidental rupture, breakdown or during maintenance operations. Any equipment approved for Division I is automatically
also approved for Division II.
Standard Hazardous Location Models
MFG CATALOG
NUMBER
MFG MODEL
NUMBER
KW BTU’s VOLTS PH AMPS Control
Voltage
Temp
Rise °F
Air
Throw CFM Recom’d
Mounting Ht.
WT.
(LBS)
07343502
HLA 12-208160-3.0-24
3 10250
208
1
16.3
24
16.5
24’
580
8’
167
07340002
HLA 12-208360-3.0-24
208
3
9.8
07340102
HLA 12-240160-3.0-24
240
1
14.8
07340202
HLA 12-240360-3.0-24
240
3
8.6
07340302
HLA 12-480360-3.0-24
480
3
4.3
07343602
HLA 12-208160-5.0-24
5 17100
208
1
26
27.6
8’
07340502
HLA 12-208360-5.0-24
208
3
15.4
07340602
HLA 12-240160-5.0-24
240
1
23.1
07340702
HLA 12-240360-5.0-24
240
3
13.4
07340802
HLA 12-480360-5.0-24
480
3
6.7
07343702
HLA 12-208160-7.5-24
7.5 25600
208
1
38
41.4
8’
07341002
HLA 12-208360-7.5-24
208
3
22.3
07341102
HLA 12-240160-7.5-24
240
1
33.6
07341202
HLA 12-240360-7.5-24
240
3
19.4
07341302
HLA 12-480360-7.5-24
480
3
9.7
07341502 HLA 16-208360-10.0-24
10 34150
208
3
29.3
21.7 40’
1500
10’
193
07341602 HLA 16-240160-10.0-24
240
1
44
07341702 HLA 16-240360-10.0-24
240
3
25.5
07341802 HLA 16-480360-10.0-24
480
3
12.7
07342002 HLA 20-208360-15.0-24
15 51200
208
3
43.5
19.2
43’
2450
13’
07342102 HLA 20-240360-15.0-24
240
3
38.1
07342202 HLA 20-480360-15.0-24
480
3
19
07342302 HLA 20-600360-15.0-24
600
3
15.2
07342402 HLA 20-480360-20.0-24
20 68300
480
3
25.1
26.2
225
07342502 HLA 20-600360-20.0-24
600
3
20
07342602 HLA 20-480360-25.0-24
25 85400
480
3
31.1
32.8
07342702 HLA 20-600360-25.0-24
600
3
24.9