Product Overview
This series of explosion-proof air conditioning units incorporates specialized explosion-proof design and processing technologies, offering a wide capacity range. Utilizing a complete set of high-quality, name-brand refrigeration components and precision engineering, the units ensure excellent overall performance, reliable operation, and low noise levels. They are widely applicable in explosive hazardous areas where flammable gases, vapors, or air mixtures of Groups IIA, IIB, IIC, and Temperature Classes T1 to T4 may be present, such as in scientific research, petroleum, chemical, pharmaceutical, processing, manufacturing, and biological industries, meeting environments with stringent temperature control requirements.
The products have passed China's National Explosion-proof Electrical Product Quality Supervision and Inspection, obtaining the required explosion-proof certification. They are also ATEX certified, complying with EU Directive 2014/34/EU and relevant EN standards. The series boasts an aesthetic appearance, rational design, and easy installation and maintenance. Featuring microprocessor control and digital display, they are user-friendly and exhibit stable performance.
Features
1. Reliable Core Components
Equipped with a well-known brand compressor for stable and long-lasting operation.
2. High-Efficiency Heat Exchange Design
High-efficiency heat exchanger ensures full contact between refrigerant and air, significantly improving cooling and heating performance.
3. Wide Voltage Compatibility
Compatible with multiple power specifications: 220V/50Hz, 110V/60Hz, 440V/60Hz, etc., suitable for various regional electrical standards.
4. Full Temperature Range Coverage
Available in normal temperature (T1: -7 to 43°C), high temperature (T3: -7 to 52°C), and low temperature (T3: -45 to 52°C) models to suit diverse operating conditions.
5. Wide Industry Applicability
Suitable for flammable and explosive environments such as petroleum, chemical, military, pharmaceutical, and hazardous material storage.
6. Explosion-Proof Certification
ATEX certified ,Comply with ATEX 2014/34/EU directive,
Explosion-proof marking: Ex db ib mb IIB T4 Gb / Ex db ib mb IIC T4 Gb, suitable for explosive gas atmospheres of groups IIA, IIB, IIC and temperature classes T1–T4.
7. Marine-Grade Anti-Corrosion Treatment
Marine models feature multi-layer anti-corrosion technology, resistant to salt spray corrosion, suitable for high-salinity marine environments, and certified by classification societies.
8. Complete Product Range
A complete range includes high-temperature, low-temperature, and normal-temperature models to meet diverse environmental needs.
Notes:
1. Rated cooling capacity test condition: Leaving water temp. 7°C, flow rate 0.172 m³/(h·kW), outdoor dry-bulb temp. 35°C.
2. Rated heating capacity test condition: Leaving water temp. 45°C, flow rate 0.172 m³/(h·kW), outdoor dry-bulb temp. 7°C, wet-bulb temp. 6°C.
3. Specifications are subject to change. Refer to product nameplate for final confirmation.
4. Dimensions include vibration isolation rubber pads (70mm height).
5. For other technical requirements, please consult the sales company.
CNWINNEX explosion-proof systems are widely deployed in oil & gas, petrochemicals, pharmaceuticals, ports & terminals, mining, power generation, offshore platforms, and other areas where flammable gases or dusts are present. Typical applications include control room climate control, hazardous area logistics and access management, video surveillance & security, pressurized analyzer shelters, robotic inspection, as well as custom explosion-proof enclosures and system integration.
An explosion-proof air conditioner is a specialized HVAC unit designed for hazardous environments where flammable gases, vapors, or combustible dusts are present (e.g., petrochemical plants, gas stations, paint booths, pharmaceutical labs).
The most critical difference from a standard air conditioner lies in “active ignition prevention.” Standard units generate tiny sparks during normal operation – such as when relays open/close, compressors start/stop, or circuits make/break. While safe in normal air, these sparks can be deadly in an explosive atmosphere.
CNWINNEX’s explosion-proof design is based on the T4 temperature class. For high-temperature regions such as the Middle East or areas with extreme summer heat, we offer custom units rated for ambient temperatures up to 60°C (140°F) , ensuring reliable operation without overload in harsh tropical climates. For cold regions, we offer custom units rated for ambient temperatures as low as -50°C (-58°F) , guaranteeing safe operation in extreme arctic conditions.
The explosion-proof rating of CNWINNEX air conditioners is:
Ex 2 G D Ex db ib mb IIB T4 Gb / Ex 2 G D Ex db ib mb IIC T4 Gb / Ex ib mb tb IIIC T130°C Db
●For Gas (G): Ex db ib mb IIC T4 Gb
Suitable for IIC gas groups (including hydrogen, acetylene, etc.), using flameproof (db), intrinsic safety (ib), and encapsulated (mb) combined protection. Temperature class T4 (max surface temperature ≤135°C), Equipment Protection Level Gb.
●For Dust (D): Ex ib mb tb IIIC T130°C Db
Suitable for IIIC conductive dusts, using intrinsic safety (ib), encapsulation (mb), and dust-tight (tb) protection. Maximum surface temperature 130°C, Equipment Protection Level Db.
CNWINNEX products comply with international explosion-proof certification standards such as ISO, CNEX, ATEX, IECEx, SAA, EAC, ensuring safe use in different countries and regions., and BV or DNV (for offshore applications) . Depending on the product type and zone classification, we offer various protection concepts including Ex d, Ex e, Ex ib, and Ex nA, with ingress protection up to IP66/IP67, ensuring safe and compliant operation in hazardous environments worldwide.
Absolutely. Explosion-proof Custom Engineering is our sixth core business. From non-standard Ex components (special material junction boxes, intrinsically safe sensors, etc.) to integrated Ex systems (skid-mounted control rooms, pressurized cabins, legacy equipment retrofitting), we provide full-process custom services covering conceptual design, 3D simulation, compliance certification, manufacturing, and delivery. Simply share your operating parameters and functional needs, and we will engineer a dedicated explosion-proof safety solution for you.
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