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HUIFENG500 automatic roof ventilation
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HUIFENG roof automatic ventilations adopt the pressure and temperature margin between indoor and outdoor and nature air as dynamic. Rational design and excellent bearing lubricant system assure the ventilations could work in rainy and windy weather without damage and water leaking phenomenon. Special designed angle variable duct makes the ventilation could be easily installed on the roof with different slope. Fine quality stainless steel or aluminum bring the ventilation clear and bright metal texture. |
Features of HUIFENG500 automatic roof ventilation
| excellent air and humidity outputting capacity |
Power saving and environment protection effect |
Easily and conveniently installed |
Stable performance |
| HUIFENG roof automatic ventilations adopt the pressure and temperature margin between indoor and outdoor and nature air as dynamic. Without operation, they could supply the room with fresh air and outputting polluted air, which keep comfortable environment for working and living. No air condition system or expensive industry air conditioner should be installed after the set of this type ventilation |
This type ventilations adopt fine lubricant bearing, they work with no noise, no vibration, power saving ,and without pollution, keeping the environment protection tendency. |
As adopting special angle variable duct, this type ventilation could change their angles rapidly to suit roofs with different slopes (0-22.5). no fixed size much more lower the installation cost. |
Rational design and excellent bearing lubricant system assure the ventilations could work in rainy and windy weather without damage and water leaking phenomenon. |
adapter kit of HUIFENG 500 automatic roof ventilation
All the adapter kits contain top of turbo, antiwater based plate and a angle variable duct. Installation instruction and screw will be affixed with each ventilation.
Calculation for ventilation volume
1、the indoor volume of the building(length×width×height)
2、based on the style of buildings, air variation velocity A/C could be identified according table1.
3、according to the local weather documents, the ventilation performance could of standard wind velocity（6、9、10、12 and 16km/h） could be set ; ventilation capacity could be obtained from table 2.
4、numbers of ventilation calculating formula:
numbers of ventilation= （VOL×A/C）/ air exchanging capacity(depend on table 2)
| Performance parameter of HUIFENG 500 automatic roof ventilation |
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表一、不同建筑类型的空气变化率建议值（A/C）
| 建筑类型 |
每小时排气次数 |
| 仓库 |
1-2 |
| 工厂和车间 |
2-3 |
| 体育馆 |
3-5 |
| 市场 |
5-10 |
| 车库 |
6-10 |
| 养殖场 |
10-20 |
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表二、不同风速下的换气能力
| 通风器颈管 |
风速（km/h） |
换气能力（M3/h） |
| 500mm |
6km/h |
1900M3/h |
| 8km/h |
2500M3/h |
| 10km/h |
2800M3/h |
| 12km/h |
3200M3/h |
| 16km/h |
3900M3/h |
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Installation instruction of HUIFENG 500 automatic roof ventilation
In ideal condition, ventilation should be installed on the top of roof. To avoid water leaking, the fixed plate of ventilation should be set in under the ridge line.
Space between each ventilation could not less than 3m. (see the follow diagram)
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Dezhou Air Conditioner Equipment Co., Ltd.
Address： No.181,North Dongdi Road, Tianqu Industry Park ,Dezhou
TEL：0534—2356870 2358328
FAX：0534—2358326
huifeng888@263.net
w-hf@263.net |
Office in Beijing Address： Room 302,The unit 14,Jiayuanerli fengtai beijing
Ceil phone：13522964184 13520981127
Contact：Li Xian Tao Lui Wei Jun |
Office in Zaoqiang
Address： Fiberglass Garden ,Zaoqiang Town,Hebei Province
TEL：0318—7056261
FAX：0318—7056261
Ceil phone：13583474833
Contact：Bei De Yu |
Office in Shijiazhuang
Address： Room 301,the Third Unit, No. 31 Building, Yangang New District
FAX：0311-5877888
TEL：0311-6700382
Ceil phone：139-31983216
Contact： Yuan Jin'an |
Office in Shenyang
Address： No.26 Nonliuzhonglu Rood.Tiexi Shenyang
Ceil phone：13589940048
Contact ： An Shuwei |
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