25 Year Industrial Explosion-Proof Manufacturer
Technical Article
Technical Comparisons

Explosion-Proof Air Conditioner Cooling Capacity and Heating Capacity

The cooling and heating capacities are pivotal technical metrics for explosion-proof air conditioners and are the primary parameters consumers should evaluate when selecting an air conditioner. Understanding the physical implications of the unit’s cooling/heating capacity and its appropriate room area coverage is essential.

Room Area (m²)Air Conditioner InstallationRoom Area (m²)Air Conditioner Installation
Cooling Capacity (W)Heating Capacity (W)Cooling Capacity (W)Heating Capacity (W)
10~162300260027~4060006700
12~182600295029~4561008110
15~223200375032~5270009800
16~243500420036~55750010300
21~314700540057~881200015700
23~3750006110

Cooling Capacity:

Referred to as the load, cooling capacity is the heat that the refrigeration machine (explosion-proof air conditioner) transfers from a colder to a warmer object per unit time. The nominal cooling capacity typically corresponds to an indoor temperature of 27°C and an outdoor temperature of 35°C. However, this capacity decreases if the outdoor temperature falls below 7°C or exceeds 35°C. According to national standards, the measured cooling capacity must not be less than 95% of the nominal value specified on the nameplate.

In the International System of Units (SI), cooling capacity is denoted in watts (W) or kilowatts (kW). However, in the realm of explosion-proof air conditioner, the traditional unit of kilocalories per hour (kcal/h) is still prevalent. Additionally, some countries use the ton of refrigeration as a unit, representing the cooling needed to freeze 1 ton of 0°C water into 0°C ice over 24 hours.

Heating Capacity:

The heating capacity represents the heat generated by the explosion-proof air conditioner (electric heating type) or transferred from external warmer air to the interior (heat pump type) over time. This capacity is a critical performance index for both heat pump and electric heating-type explosion-proof air conditioners, akin in significance to cooling capacity.

Dana Lin
Dana Lin Senior Compliance & Safety Engineer

Specializes in global explosion-proof standards (ATEX/IECEx/UL) and rigorous technical compliance, providing the foundational engineering data for industrial safety.

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