Stay informed with the latest news, product launches, industry insights, and
company announcements from LONTU.
Our most important announcements and highlights
Common Explosion-Proof Air Conditioner Problems and Troubleshooting An explosion-proof air conditioner runs in a harsh environment. Eventually, something fails. A drop in cooling, a tripped breaker or a strange noise all stop work. Therefore, quick diagnosis matters. This guide covers common problems and practical fixes for explosion-proof air conditioner troubleshooting. In addition, it shows when […]
Recent updates and announcements from our team
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
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,
Zone 1 vs Zone 2 vs Zone 21: Choosing the Right Explosion-Proof AC Hazardous areas are not all the same. The risk level differs from zone to zone. Consequently, the equipment rules differ too. Many buyers ask about zone 1 vs zone 2 air conditioner selection. This article explains the
Get the latest news, product updates, and industry insights delivered directlyto your inbox.
Stay informed with the latest news, product launches, industry insights, and
company announcements from LONTU.
Subscribe for the latest on safe, certified LED solutions for oil & gas, chemical, mining, and hazardous environments.
Zhongshan, Guangdong, China (Headquarters & Factory)
Address: No.81 Caoxing West Road, Guzhen Town,
Zhongshan City, Guangdong Province
Email: aiwen@exltfb.com
Phone: +8613025502307
Copyright © 2025 by Zhongshan Longju Technology Co., Ltd.
