
Explosion-proof rooftop air conditioning units are all-air systems that integrate refrigeration, heating, temperature and humidity control, and air purification into one large and medium-sized air conditioning unit. They come in various models with cooling capacities ranging from 70 to 500 kilowatts. This series of rooftop units combines direct expansion air conditioning with water-cooled heat pump technology, achieving centralized integrated control of cooling and air conditioning, featuring energy saving, simple systems, stable performance, and precise microcomputer control for optimal air quality and performance. The air handling section utilizes aluminum alloy frames and high-pressure foam double-wall structures for each functional segment, while the compression and condensation sections are assembled in plate form, offering mature technology, flexible design, diverse functional segment combinations, easy installation, and ease of control.
This series of air conditioning units is suitable for indoor air conditioning under various environmental conditions, featuring multiple functions such as cooling, dehumidifying, heating, humidifying, and ventilation. It offers a wide temperature control range and precise humidity control. This series of air conditioning units are indispensable auxiliary equipment for scientific research, industry, agriculture, and commercial services. Thanks to their compact structure, the entire unit can be placed on rooftops or ground without occupying effective space, making them widely applicable in mechanical, chemical, and electronic industries with high requirements for temperature and humidity. They are suitable for areas with potential or existing explosive hazards from mixtures of IA, II B-class, T1-T4 combustible gases, vapors, and air, forming explosive zones 1 and 2.
Explosion-proof rooftop air conditioning unit operating range:
Cooling: Outdoor Environment Side: Dry Bulb Temperature: 15 ~ 45%
Indoor Return Side: Dry Bulb Temperature: 16~30%, Wet Bulb Temperature: 15~24°C; Heating: Outdoor Ambient Side: Dry Bulb Temperature: -7~21%
Indoor Return Air Side: Dry Bulb Temperature: 16 ~ 30t
Air-Cooled Unit Performance Parameters - (R22/R407c)
| ModelBZKT- Ex | BZKT-75EX | BZKT-90EX | BZKT-110EX | BZKT-130EX | BZKT-150EX | BZKT-180EX | BZKT-210EX | ||
| Cooling capacity | kW | 73 | 92. 2 | 108. 2 | 127. 8 | 148. 3 | 178. 8 | 211. 4 | |
| kca/h | 62780 | 79292 | 93052 | 109908 | 127538 | 153768 | 181804 | ||
| Energy Regulation % | 0, 50, 100 | 0, 50, 75, 100 | |||||||
| Temperature Control Range and Accuracy | 16〜3(TC ±2。。 | ||||||||
| Use power | 380V,50Hz,Three-phase four-wire system | ||||||||
| Airflow | m3 h | 13000 | 16000 | 18000 | 21000 | 24000 | 28000 | 32000 | |
| External Static Pressure | pa | 250 | 250 | 320 | 320 | 400 | 400 | 450 | |
| Cooling Input Power | KW | 26. 1 | 33. 9 | 39. 4 | 45. 9 | 54. 8 | 66. 1 | 78. 6 | |
| Operation Mode | Fully automatic operation | ||||||||
| Compressor | Type | Totally enclosed screw type | Semi-enclosed screw-type | ||||||
| Quantity | 2 | 2 | 2 | 2 | 2 | 1 | 1 | ||
| Evaporators, Condensers | Copper tube with aluminum fin | ||||||||
| Cooling fan | Type | Axial Direct-Connected | |||||||
| Power | kW | 2. 2 | 2. 2 | 3. 6 | 3. 6 | 6 | 6 | 7. 2 | |
| Numerous stars: | Tai | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| Refrigerant | Type | R22(R407c) | |||||||
| Working Fluid System | 2 | 2 | 2 | 2 | 2 | 1 | 1 | ||
| Fill Volume | kg | 24 | 30 | 36 | 40 | 44 | 55 | 68 | |
| Supply Fan | Type | Double-inlet centrifugal fan (belt-driven) | |||||||
| Motor Power | kW | 4 | 5. 5 | 7. 5 | 7. 5 | 11 | 11 | 15 | |
| Filter | Initial Efficiency Plate(G3) | ||||||||
| New air volume | 0% to 30% (adjustable, initial air intake efficiency)) | ||||||||
| Electric Heating | Heating Child | kW | 36 | 42 | 48 | 60 | 60 | 72 | 90 |
| Energy Regulation | 0, 50, 100 | ||||||||
| Hot Water Heating (Coil)) | Heating capacity | kW | 70 | 70 | 100 | 100 | 140 | 140 | 180 |
| Assume dimensions | DN | 40 | 2x40 | ||||||
| Steam Heating | Heating capacity | kW | 80 | 80 | 116 | 116 | 160 | 160 | 210 |
| Coiled) | Assume dimensions | DN | 40 2x40 | 2x40 | |||||
| Dimensions | Long | mm | 4507 | 4507 | 4909 | 4909 | 5211 | 5211 | 5542 |
| Wide | mm | 868 | 1868 | 2070 | 2070 | 2070 | 2070 | 2272 | |
| High | mm | 1786 | 1786 | 2006 | 2006 | 2226 | 2226 | 2480 | |
| Engineered weight | kg | 1900 | 2050 | 2400 | 2550 | 3000 | 3250 | 3600 | |
| Engine noise | dB(A) | 70 | 72 | 72 | 72 | 74 | 78 | 79 | |
Note:
1. Refrigeration Capacity Rating Condition: Indoor return air dry bulb temperature 27°C, wet bulb temperature 19°C; outdoor ambient air dry bulb temperature 35°C.
2. Heating House Calibration Conditions: Indoor return air dry bulb temperature 20°C; hot water inlet temperature 9°C; steam pressure 0.2 MPa.
3. Heating methods are optional, choose from electric, hot water, or steam heating. Electric regulating valves are required for hot water and steam heating.
4. When selecting R407c refrigerant, refer to the technical parameters in this table.
All standard models are not suitable for winter refrigeration; please specify if required when placing an order.
6. Engine Noise: Measured at a distance of 2 meters from the unit after the wind tube is properly connected in accordance with regulations.
7. Specifications may change without prior notice due to product improvements.







