Multi-Wing Z Series Setting Instructions

Before You Begin:

To maintain balance of fan:

Mark the hub castings across a joint.

Mark the location of any balancing weight.

Number the blades and blade sockets.
Step 1 – Determine Blade Type: 1Z, 2Z, 4Z, 5Z, 6Z, 7Z, TR7Z or TR8Z
Look for markings on blade which are in one of two places:
Look on cone section at base of blade, or
Look inside the bottom of the socket (blade must be removed from hub).
Finally, if not sure, visit Multi-Wing Parts at www.multi-wing.net, or contact us.
Step 2 – Determine Rotation Code: L or R
R rotation rotates clockwise facing air discharge; L rotation is counterclockwise facing air discharge.
Examples of rotation for 4Z blades as viewed from end of socket are below, and 5Z is similar.
R, or clockwise
Step 3 – Find Blade Pitch Angle:
The blade pitch angle can be found several ways:
First, by knowledge of the Multi-Wing fan part number.
The pitch angle precedes the blade material code in the part number. For example, the pitch angle is
30 degrees in this part number: 36/9-9/30/PPG/5ZR/ SH 1-3/8 /AS
Second, by careful disassembly:

Disassemble fan on flat surface, and note in which groove the pin is
located. See number code in picture to the right.

Using table in step 5 below, find the possible blade pitch.
Third, by calling a sales engineer at Multi-Wing for assistance.
Multi-Wing Z Series Fans
Blade Pitch Angle Setting Instructions
20, 25, 27.5, 30, 32.5, 35, 37.5, 40, 45, or 50
L, or counterclockwise