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Hazardgard SH20M30B

Friedrich SH20M30B

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 25.93"
  • Height: 17.93"
  • Depth: 29"
  • Energy Star Rated: No
  • Cooling Power: 19000 BTUs

For more than 30 years, industrial professionals have trusted Hazardgard ® to deliver safe and reliable cooling in the most extreme conditions. Hazardgard ® is specifically designed to cool laboratories, control rooms, living quarters, storage areas and other enclosures situated in hazardous locations; where specific volatile flammable liquids or gases are handled or used within enclosed containers or systems.

Performance in Extreme Conditions

Hermetically sealed reciprocating compressor is cooled during the refrigeration cycle, which allows the unit to tolerate higher outdoor temperatures up to 130 F/55 C. Equipped with hot gas bypass for cooling operation at low ambient temperatures, down to 45 F/7 C without freezing.

Durability & Reliability

Robust engineering, commercial grade components and extensive field testing provide the durability and safety required in hazardous locations.

Meets T4 Temperature Classification

Unit surface temperatures will not rise above 275°F/135°C. Hazardgard ® can tolerate higher outdoor temperatures up to 130°F/55°C. Unit will operate at low ambient conditions without freezing at outdoor ambient temperatures as low as 45°F/7°C.

Coated Coils for Corrosion Resistance

ElectroFin ® 5-stage, immersion ecoat process, or Diamonblue Advanced Corrosion Protection ® on 100% of metallic surfaces on the outdoor coil provides outstanding corrosion resistance protection and extends the life of the unit, especially in coastal or corrosive environments. MODEL SH24N30A ONLY.

The Friedrich Advantage

Hazardgard ® 's reliable design is backed by robust engineering. Used across the globe, Hazardgard ® is a tested and reliable product and not a quick-fix, job shop alteration.


Hazardgard ® is designed with a slide-out chassis for more permanent installation and easier access for maintenance. Sleeve dimensions have remained the same for 20+ years for easy replacement. The unit installs in a window or through-the-wall.

Model SH20M30B
Operation Cool only
Cooling BTU 21000/21000
Reverse Heating BTU ---
Voltage 230/208
EER 9.7/9.6
COP @ 47°F ---
Cooling Area (Sq Ft.) ---
Cooling Range ---
SEER ---
Refrigerant R-410A

Quick Specs

  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 25.93"
  • Height: 17.93"
  • Depth: 29"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 19000 BTUs

Specifications PDF

Hazardgard Non-ATEX Brochure

Hazardgard Non-ATEX Brochure

Hazardgard Non-ATEX Brochure

SASO- Hazardgard Installation and Operation Manual (English)

SASO- Hazardgard Installation and Operation Manual

Hazardgard Non-Atex Installation and Operation Manual

Hazardgard ATEX Installation and Operation Manual

Hazardgard Service Manual

Hazardgard Non-ATEX Brochure

Hazardgard ATEX Brochure

Hazardgard ATEX Brochure

Hazardgard ATEX Brochure

Hazardgard Non-ATEX Product Submittal

Hazardgard Non-ATEX Product Submittal

Hazardgard Submittal

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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.