Explosion-Proof Air Conditioner Installation Requirements

Explosion-proof wall-mounted air conditioner with Ex certification installed on the wall of an industrial workshop

Explosion-Proof Air Conditioner Installation Requirements: A Step-by-Step Guide An explosion-proof air conditioner protects a room where flammable gas or dust may appear. A careless installation can defeat that protection. Consequently, installation rules are strict and site-specific. This guide explains the explosion-proof air conditioner installation requirements for typical hazardous-area projects. First, we cover classification and permits. […]

Class I Division 1 vs Division 2 HVAC: NEC Rules Explained

Explosion-proof wall-mounted air conditioner with Ex-rated control box installed in an industrial workshop

Class I Division 1 vs Division 2 HVAC: NEC Rules Explained North American plants classify hazardous areas with the NEC. The Class I Division system is common across refineries, chemical plants and paint facilities. Many buyers struggle with Division 1 versus Division 2. In addition, they wonder which class i division 1 air conditioner they […]

Explosion-Proof Refrigerators: Safe Cold Storage for Hazardous Areas

Explosion-proof stainless steel refrigerator with double doors in a laboratory environment

Explosion-Proof Refrigerators: Safe Cold Storage for Hazardous Areas Hazardous areas need cold storage too. Flammable chemicals, lab samples and medicines all require controlled temperatures. A standard refrigerator, however, can ignite the atmosphere. Its compressor, thermostat and interior light all create sparks. Therefore, classified plants use an explosion-proof refrigerator instead. This guide explains how these units […]

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