For more than three decades, global industry and high-tech leaders have trusted Friedrich to provide commercial-grade cooling under the harshest conditions. You’ll find durable, reliable Hazardgard room air conditioners on oil rigs and military bases, in manufacturing companies and processing plants – anywhere hazardous materials are used. Hazardgard is specifically designed to cool spaces where volatile, flammable liquids and gases are used, within enclosed systems or containers, or under extreme temperatures.
| FT2 | BTU |
| 100–150 | 5000 |
| 150-250 | 6000 |
| 250-300 | 7000 |
| 300–350 | 8000 |
| 350–400 | 9000 |
| 400–450 | 10000 |
| 450-550 | 12000 |
| 550-700 | 15000 |
| 700–1000 | 18000 |
| 1000-1200 | 21000 |
| 1200-1400 | 23000 |
| 1400–1600 | 25000 |
| 1600–1900 | 28000 |
| 1900–2700 | 36000 |
Electrical equipment, like hazardous location air conditioners, that may be exposed to specific, hazardous gases or vapors in the area where it will be used, cannot reach temperatures that exceed 80% of the auto-ignition temperature of those gases or vapors. The Hazardgard air conditioners have a T4 rating which means their surface temperature should not exceed 135°C or 275°F. (Note: 50/60Hz model listed as T4A for surface temperatures to 120° C/248° F).
| Electrical Equipment Label | Temperature (C) | Temperature (F) |
| T1 | 450°C | 842°F |
| T2 | 300°C | 572°F |
| T2A | 280°C | 536°F |
| T2B | 260°C | 500°F |
| T2C | 230°C | 446°F |
| T2D | 251°C | 483.8°F |
| T3 | 200°C | 392°F |
| T3A | 180°C | 356°F |
| T3B | 165°C | 329°F |
| T3C | 160°C | 320°F |
| T4 | 135°C | 275°F |
| T4A | 120°C | 248°F |
| T5 | 100°C | 212°F |
| T6 | 85°C | 185°F |
The above chart illustrates that 200°C is the maximum surface temperature for any electrical equipment with a temperature classification of T3 or higher.
| Model | Cooling Capacity (Btu/Hr.) | Volts Rated | Cooling Amps | Cooling Watts | Energy Efficiency Ratio | Moisture Removal Pints/HR | Air Direction Controls | Air Circulation (CFM) | Refrigerant |
| 60 H E R T Z – P E R F O R M A N C E | |||||||||
| SH24N20AT | 2400/23700 | 230/208/60 | 12.6/13.5 | 2727/2788 | 8.8/8.5 | 8.20/7.5 | 8-way | 385 | R-410A |
| 50 H E R T Z – P E R F O R M A N C E | |||||||||
| SH24N20AT | 21000/20500 | 240/220-50 | 15.0/13.2 | 2600/2412 | 8.1/8.5 | 7 | 8-way | 360 | R-410A |
| SH20N50AT | 19500/19100 | 240-220-50 | 9.8/10.3 | 2167/2156 | 9.0/9.0 | 5.6/5.5 | 8-way | 425 | R-410A |
| Unit Dimensions | Window Width | In-Wall Installation Finished Hole | Circuit Rating Breaker or T-D Fuse | Weight lbs | ||||||||||
| Model | Height | Width | Depth with Front A | Depth J Box to Louvers B | Minimum Extensions Into Room | Minimum Extension Outside | Min | Max | Height | Width | Max Depth | Volts-Amps | Net | Shipping |
| SH24N20AT | 17 15/16″ | 25 15/16″ | 27 3/8″ | 6″ | 3 1/16″ | 16 15/16″ | 27 7/8″ | 42″ | 18 3/16″ | 26 3/16″ | 6″ | 250V-30 | 180 | 185 |
| SH20N50AT | 17 15/16″ | 25 15/16″ | 27 3/8″ | 6″ | 3 1/16″ | 16 15/16″ | 27 7/8″ | 42″ | 18 3/16″ | 26 3/16″ | 6:00 | 250V-15 | 171 | 175 |
Due to continuing engineering research and technology, specifications are supbject to change wihtout notice. Manufactured under U.S. Design Patent DES 368, 306 decorative front; Utility Patent 5, 662, 058. MAXIMUM outdoor ambient operating temperature is 130ºF. (55ºC) MAXIMUM TEMPERATURE RATING FOR CLASS 1, DIVISION 2, GROUPS A, B, C, D. Capacity and efficiency values at each climate conditions are available upon request. NOTE: Hazardgard unit must be hard-wired.
Exloc Instruments, Inc., is a one-stop-shop for instruments and electrical equipment for hazardous and classified locations.
15584 Summit Park, Suite 303
Montgomery, TX 77356
Fill out your contact details and we will forward you to download our product brochures.
