DX Purification Type Heat Recovery Air Handling Units
As essences of Holtop AHU core technology, DX coil AHU provides both AHU and outdoor condensing unit. It's a flexible and typical solution for all building area, such as Mall, Office, Cinema, School etc.
Product Description
Combined with core technology of HOLTOP AHU, DX (Direct Expansion) coil AHU provide both AHU and outdoor condensing unit. It's an flexible and simple solution for all building area, such as mall, office,Cinema,School etc.
| Long piping design The pipe connection length between indoor unit and outdoor unit can reach 50m, and the maximum drop can reach 25m. The indoor unit and outdoor unit can be installed on site more flexibly. |  |
Efficient refrigerant heat exchange flow path Efficient two-in-one refrigerant confluence technology improves the liquid phase flow rate of the refrigerant, improves the overall heat transfer coefficient of the heat exchanger, and improves supercooling and strengthens the refrigerant transmission distance.
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| High efficient heat exchange fins The innovative high-efficiency low-pressure loss window fins are made of hydrophilic membrane aluminum, which can improve the heat transfer wet film heat transfer coefficient and improve the overall heat exchange performance of the unit. |  |
Comfort Control System The wire controller is simple and convenient, flexible in application, and widely used in small and medium-sized office-level business spaces.
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Functional control system Building systems based on the MODBUS protocol can be directly connected to the centralized control system through the MODBUS communication interface standard on the unit, no need to access conversion equipment, and are suitable for large and mediumsized air-conditioning locations. Dual Temperature Sensors Innovative design with two temperature sensors, one at return vent, and one at the control panel, to detect the indoor temperature around the room, and make sure the hot wind(winter heating mode) would be sent to each corner of the room uniformly.
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| Control network topology diagram | |
Advanced silencing technology, More quiet and reliable operation
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High efficient heat exchanger | |
New U-shaped heat exchanger As the core element of the refrigeration system, the heat exchanger directly determines whether the air conditioning system is reliable and energy-saving. | U-shaped heat exchanger structure The copper tube adopts φ7.94 thread copper tube, the flow rate is moderate, and the comprehensive performance of heat exchange defrosting is optimal.
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Green Refrigerant The Holtop HFM series SUSPENDED DX AIR HANDLING UNIT uses R410A as refrigerant, with zero ODP, to avoid damage to the ozone layer and at the same time, greatly improve cooling capacity. | |
Easy maintenance The whole unit uses frameless foaming boards to construct, and self-tapping screws to connect these boards, making it very easy to be disassembled for maintenance. | |
High ESP Design - Easy Selection The indoor unit generates a high ESP, making it possible to cover the whole area to avoid uneven distribution of temperature. Such feature makes solution and design much easier. | |
Wide Operation Temperature Range Even at 15°C, the cooling function can be activated normally; Heating function can be activated at -10°C in winter. | |
Both return air and fresh air indoor units available The HFM outdoor unit can work with both return air and fresh air Indoor unit, to meet different customers' needs. | |
Compared with other centralized and semi-centralized air handling systems, the DX Coil Air Handling system layout is simpler and more flexible, so it is widely used in shopping malls, office buildings, apartments, theaters, schools and other places.
Company Information
Holtop Factory
Holtop is one of the best manufacturer in ERV/HRV, heat exchanger and AHU area in China, founded in 2002, areas covered more than 30,000 square meters, turnover of 2012 is 42 million dollars, we have enthalpy testing lab. for products test. As a leader in energy/heat recovery equipments, we cooperate with more than 30 famous companies who located in Europe, the Middle east, Korea, Southeast Asia, Taiwan, etc. supplied equipment to Beijing Olympic and Shanghai Expo 2010, works together with domestic and international brands like Midea, Haier, Hitachi, etc.
Holtop Factory
Holtop partner
Holtop cooperate with world famous brand or offer OEM service including Hitachi, LG, McQuay, TRANE, Systemair, Aldes, York, Haier, Gree, MHI Group, Midea, Carrier, Dunham-Bush, etc.
Holtop certificate
Holtop products stand for TOP quality in heat recovery ventilation filed in China, certificated by CE, Eurovent, ISO and other different approved tests like anti-flaming test, anti-mold test, energy saving product test. Etc.