The HZN-60 and HFM-60HB1-DC DX Coil Air Handling Units (AHU) are engineered with advanced cooling technology and noise-minimizing features for commercial applications. Built on a number of leading technologies, they deliver a more powerful, stable and efficient cooling system.
Holtop DC DX Air Handling Units include two series: the DC Inverter DX air conditioner outdoor unit and the constant frequency DX air conditioner outdoor unit. The DC inverter DX AHU offers a capacity of 10–20P, while the constant frequency DX AHU offers 5–18P. On the basis of the constant frequency DX AHU, the newly developed DC inverter DX AHU adopts enhanced vapor injection technology to open a new era of low-temperature heating.
| Item / Series | DC Inverter Series | Constant Frequency Series |
|---|---|---|
| Cooling capacity (kW) | 25 – 509 | 12 – 420 |
| Heating capacity (kW) | 28 – 569 | 18 – 480 |
| Airflow (m³/h) | 5500 – 95000 | 2500 – 80000 |
| Frequency range of compressor (Hz) | 20 – 120 | / |
| Max. length of pipe (m) | 70 | 50 |
| Max. drop (m) | 25 | 25 |
| Operating range — Cooling: outdoor DB temperature (°C) | -5 – 52 | 15 – 43 |
| Operating range — Cooling: indoor WB temperature (°C) | 15 – 24 | 15 – 23 |
| Operating range — Heating: indoor DB temperature (°C) | 15 – 27 | 10 – 27 |
| Operating range — Heating: outdoor WB temperature (°C) | -20 – 27 | -10 – 15 |
Cross-flow total heat exchangers, cross-flow plate heat exchangers or rotary heat exchangers are available to meet different customer needs.
Equipped with a high-efficiency filter element that effectively removes PM2.5 particles carried in the air, ensuring the outdoor air entering the indoor space is clean and haze-free.
The indoor unit can be fitted with a formaldehyde removal module that effectively filters and decomposes formaldehyde molecules. Combined with the replacement and dilution provided by the heat exchangers and filters, this delivers double formaldehyde removal.
This AHU brings fresh outdoor air into the room. By increasing oxygen concentration, reducing carbon dioxide, and removing odors and other harmful gases, indoor air quality is greatly improved.