Product Overview
Hazardgard Series air conditioners are specifically designed for use in areas where specific volatile flammable liquids or gases are handled or used within enclosed containers or systems. Hazardgard air conditioners are a great solution for off shore oil rigs, refineries, furniture workshops or other workshops where paints and varnishes are stored and used, as well as many other enclosed spaces where hazardous materials are processed or stored.
For more than 30 years, the Friedrich Hazardgard has endured some of the toughest and most unforgiving operating conditions imaginable. Time-tested in the field where it counts, Hazardgard is trusted by professionals who have to get the job done. Details like 33% thicker fins help extend the life of the coil.
The SH20N50AT 19,500 BTU Hazardgard Series Air Conditioner is a T4 Temperature Classified unit. It is imperative that you know the auto-ignition temperature (AIT) of the gasses you are working with. The AIT is the temperature at with the mixture of air and gas will spontaneously ignite or combust with no other resource or interference. The T-Class determines the maximum temperature of the exposed surfaces of your electrical equipment - including air conditioners! The Hazardgard AT Series is designed such that the surface temperature will not rise above 135°C/275°F and therefore meets the standards of a T4 class unit. It is designed to work in areas where the maximum temperature of the surface area of the unit is lower than the AIT of the gasses you are working with. The Hazardgard T4 Series can be used in areas with gasses such as Propane, with an AIT of 470°C, or Acetone (AIT 540°C) but not in an area with Carbon Disulphide (AIT of 102°C) for example.
The Hazardgard T4 Series also operates at low ambient conditions without freezing at outdoor ambient temperatures as low as 7° C / 45°F. Additionally, it tolerates higher outdoor temperatures up to 55°C / 130°F. The SH20N50AT is ATEX and IECEx Certified.
Durability features for dependable operation in the harshest environments.
Direct wire connection: Utilizes direct-wired, 15-amp circuit with time-delay fuse that will tolerate surge current without tripping the breaker. The SH20N50AT requires a 250 Volt 50 Hz circuit.
Hermetically sealed reciprocating compressor: The compressor motor is cooled during the refrigeration cycle, which allows the unit to tolerate higher outdoor temperatures.
Heavy gauge steel: 22 gauge steel, G60 steel cabinet for corrosion protection is used in order to create a more robust air conditioner cabinet that will withstand years of hard use.
Commercial Grade Enclosed fan motor: Larger, commercial grade fan motor with hermetically sealed overload for arc-free operation. Totally enclosed to assure efficient operation under adverse electrical conditions.
- Permanent split capacitor
- Hermetically sealed refrigeration system
- Environmentally sealed on/off switch and gold plated contacts in thermostat for corrosion resistance.
- Solid-state control relays for compressor and fan operation.
- Hot gas bypass allows the air conditioner to operate at low ambient conditions without freezing at outdoor ambient temperatures as low as 45° F.
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.
Built tough - Friedrich air conditioners are a superior product built from high grade materials and components that deliver dependable operation for years after your purchase. Friedrich air conditioners can be found in some of the world’s toughest locations. Oil companies rely on Friedrich to cool offshore oil rigs in the most extreme conditions, and military bases and government offices all over the world choose Friedrich. Industrial and high tech leaders also trust Friedrich commercial grade products for their applications.
Built tough - Friedrich air conditioners are a superior product built from high grade materials and components that deliver dependable operation for years after your purchase. Friedrich air conditioners can be found in some of the world’s toughest locations. Oil companies rely on Friedrich to cool offshore oil rigs in the most extreme conditions, and military bases and government offices all over the world choose Friedrich. Industrial and high tech leaders also trust Friedrich commercial grade products for their applications.
The Hazardgard T4 Series meets the following criteria:
- MIL-C-46168 Chemical Agent Resistance -DS2, HCI Gas
- CID A-A-52474A (GSA)
- MIL-STD 810F, Method 509.4 (Sand and Dust)
- MIL-P-53084 (ME)-TACOM Approval
- MIL-DTL-12468 Decontamination Agent (STB)
- DPG (Douglas Proving Grounds) Soil & Water Exposure Tests
- GM9540P-97 Accelerated Corrosion Test (120 cycles)
- ASTM B117-G85 Modified Salt Spray (Fog) Testing-2,000 hours
- ASTM B117 Salt Spray (tested by ARL for Lockheed Martin)
Certifications:
- ATEX Certified, II 3 G Ex nA nC IIC T4 Gc
- IECEx Certified, Ex ec nA nC II C T4 Gc
- UL LISTED for CLASS 1, DIV 2, GROUPS A, B, C and D
- CERTIFIED in accordance with ISA 12.12.01 and NFPA 70 (NATIONAL ELECTRIC CODE), ANSI/UL 484 Room Air Conditioners
- KSA registered model tested in accordance with SASO 2681
Dimensions:
- Height: 17-15/16"
- Width: 25-15/16"
- Overall Depth (A): 27-3/8"
- Depth J Box to Louvers: (B): 4-7/8"
- Minimum Extension into Room: 3-1/16"
- Minimum Extension Outside: 16-15/16"
- Window Width Minimum - Maximum: 27-7/8 - 42"
- Thru-The-Wall Finished Hole Height: 18-3/16"
- Thru-The-Wall Finished Hole Width: 26-3/16"
- Thru-The-Wall Finished Hole Maximum Depth (C): 6"
- Circuit Rating Breaker or T-D Fuse: 250 Volt - 15 Amp
Tech Specs
General Features
Performance @220 Volt / 50Hz
Performance @240 Volt / 50Hz
Features
Weights and Dimensions
Electrical Requirements
California residents see Prop 65 WARNINGS
WARNING!
Warning: Cancer and Reproductive Harm - www.p65warnings.ca.gov
