The fresh air rooftop unit can solve two major problems which can
not be resolved by the conventional air conditioning unit: how to
improve indoor air quality (IAQ) and energy-saving efficiency? This
type of rooftop unit features of high energy-efficiency ratio, low
noise, high static pressure, high control accuracy, safety,
reliability, little vibration, high degree of corrosion resistance,
good sealing performance, excellent rainproof and dust proof
performance. Besides, the fresh air unit can also effectively
improve the air quality and make the environment more comfortable.
1. Diverse specifications
Various types: refrigerating-only type, electric heating type,
constant temperature and humidity type, heat pump type, fresh air
type and clean type, etc
2. High-quality air condition
The fresh air conditioning unit can continuously supply the fresh
air into the room, so that the unit can not only meet the
requirement of the air-conditioning, but also can keep the air
fresh and prevent pollution.
3. High efficiency and energy saving
The fresh air unit can accurately adjust the system operating
conditions, monitor the indoor temperature and adjust the supplying
air temperature according to the load changes so that to ensure the
unit operating with the best efficiency. The operating cost is low
and the energy-saving results are obvious.
4. Multi- protection
The units are equipped with multi-protections, such as high/low
pressure protection, short circuit protection, motor overheating
protection, etc. All of those can ensure the unit operating safe
and reliably.
5. Special treatment
As the specific requirements of the operating occasions, the units
can be design as anti-exploded and anti-corrosion. It can be widely
used in the occasions which exist or possible existA,B grade, T1 ~
T4 flammable gas or explosive mixture of steam and air in the
industries of petroleum, chemical, metallurgical, military,
medicine, etc.
Technical data (R22) | Cooling air | Constant tem. & humidity | Heat pump |
Model | WLF series | WHF series | WRF series |
Power | 380V—460V 3phase---50/60Hz |
Refrigerant | R22/R407c/R134a |
Air flow (m3/h) | 4800~90000 |
Cooling capacity ( KW) | 21.9~570KW | 20~528.7KW | 21.9~570KW |
Electric heating capacity (KW) | 13.5~252 | 13.5~252 | 6.0~96 |
Heating capacity (KW) | | | 22.3~598.5 |
Technical data (R407C)
| Cooling air | Constant tem. & humidity | Heat pump |
Model | WLF series | WHF series | WRF series |
Power | 380V—460V 3phase---50/60Hz |
Refrigerant | R22/R407c/R134a |
Air flow (m3/h) | 4800~90000 |
Cooling capacity ( KW) | 22.1~581.2KW | 20.3~549.2KW | 22.1~581.2KW |
Electric heating capacity (KW) | 13.5~252 | 13.5~252 | 6.0~96 |
Heating capacity (KW) | | | 23.2~610.3 |
Technical data (fresh air type)
Model | WLFDX/WLFDHX series |
Power | 380V—460V 3phase---50/60Hz |
Refrigerant | R22 | R407C |
Cooling capacity | 23.9~380 KW | 22.5~380 KW |
Heating capacity | 9.0~138 KW | 9.0~138 KW |
Air flow | 1850~28000 m3/h |
