fans

What's Noise? Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing.There are two important characteristics of sound or noise - frequency and loudness.The higher the freque...

DC Fans (direct current fans)The DC fans are powered with a potential of fixed value such as the voltage of a battery. Typical voltage values for DC fans are, 5V, 12V, 24V and 48V. AC Fans (alterna...

Wiring inline fan with run on timer: Run on timer Instruction: Timer description:1) Run on time comes preset for 10min.2) Can adjust delay-time between 5 min to 30min.3) Arrow P Point to the dela...

Three Speed Wiring Instruction   1. Wiring Diagram: N: COMMONLC: LOW SPEEDLB: MIDDLE SPEEDLA: HIGH SPEED   2. Wiring with REB speed control: Remark:To avoid influencing the fan service life,the o...

Two Speeds Inline Fan Wiring Instruction 1. Wiring Diagram: N: COMMONLB: LOW SPEEDLA: HIGH SPEED 2. Wiring with REB Speed Control: Remark:To avoid influencing the fan service life,the optimal adj...

What Is an Inline Duct Fan and How Does It Work? These fans are spherical and are used to cover one ductwork section. As a result, your HVAC ducting will need to be worked on and exposed to install...

The required air volume depends on the room usage,created contamination and heat in the room.While choose the ventilation fan,should consider min air volume per person needed and the air exchange f...