The instruction manual is always beside hvac air diffuser. If no such instruction manual is found, you are welcomed to contact us. Then an electronic version may be offered. The instruction manual is aimed at offering you detailed operation and installation info. If you find it hard to understand, video or other effective ways may be available based on the demand.

Yingde Ventech Air Conditioning Co.,Ltd is a manufacturing company based in China that goes from strength to strength. We are experienced in designing and producing double deflection air grille. The disc valve series has many styles to meet the diversified needs of customers. Phenolic pre-insulated air duct panel is equipped with a high-quality heat exchanger. It has high heat exchange efficiency and low power consumption. Moreover, it has good corrosion resistance, excellent anti-oxidation property, and long service life. People will feel this product is comfortable and soft enough. And this product will become softer as people wear and wash it. This product is available in various kinds of powder coating.

Strict management, tight production, good quality is Ventech Air Conditioning's strategic guidelines. Ask!