How do I wire and connect an in-line duct fan?

How do I wire and connect an in-line duct fan?

How do I wire and connect an in line duct fan for cannabis grow


This guide will walk you through the process of connecting your In-Line Duct Fan to a 110/120 Volt AC, 60Hz power source using a heavy-duty extension cord. Following these instructions will ensure proper function and safety for your fan.

Power Source Requirements​

To guarantee the correct operation and safety of your In-Line Duct Fan, it must be connected to a 110/120 Volt AC, 60Hz power source, either fused or protected by a 15-amp circuit breaker. Do not connect the fan to a 240 Volt AC blower motor or any other 240 Volt system.

Connecting the Fan to an Extension Cord​

Upon unboxing the fan, you may notice the absence of a wire cover box. This is because the cover box is only required when connecting the fan to a switch. For this guide, we will connect the fan to a heavy-duty extension cord.

Wire Identification and Connection​

Your fan should come with the following wires:

  • Black wire
  • Green wire (ground)
  • White wire
To connect the fan, cut the extension cord wire, making sure it has a ground plug (3 connector pins). Then, match up the wires according to their color: green to green (ground), white to white, and black to black. If you encounter two black wires and one green wire, connect green to green, black to black, and the remaining black wire to the white wire.

Safe Wiring Practices​

For safe wiring, you will need a wire-stripper-crimper tool with the following features:

  1. Point A (white arrow): Cuts wire ends, similar to a pair of pliers. Most wires are pre-cut by the manufacturer, so this step may not be necessary.
  2. Point B: Strips the wire by inserting the wire end into the appropriate gauge hole (indicated on the tool) and pulling.
  3. Point C: Crimps the wire. In this guide, we will use wire nuts instead of crimped butt splice connectors.
You will need three wire nut connectors: one for the white wire (common), one for the black wire (hot), and one for the green wire (ground). After securely connecting all wires with the wire nuts, cover the nuts with electrical tape or duct tape as a safety precaution. Once each connector is taped, bundle all three together and tape over the entire bundle.

Important Safety Note: Never leave any bare wires exposed!

Final Steps​

With the wiring complete, plug the fan into an outlet. If you are hanging the In-Line Duct Fan, ensure that it is adequately supported. If you are installing the fan within a wall, wrap rubber around it to minimize noise and prevent vibration.

Warning: Never expose your In-Line Duct Fan to temperatures exceeding 140°F (60°C) to avoid damage or malfunction.
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