CONTENTS
Introduction
Important Safety Instructions ii
Technical Specifications 1
Pre-Installation
Before Installing Your Fan 2
Parts and Hardware 3
Fan Diagram 4
Where to Install Your Fan 5
Installation
Overview 10
1a. Prepare the I-Beam 11
1b. Prepare the Angle Irons 12
2. Directly Mount Main Fan Unit to Angle Irons 15
3a. Attach Upper Mount to I-Beam 16
3b. Attach Upper Mount to Angle Irons 17
4. Attach the Extension Tube 18
5. Secure the Safety Cable 18
6. Attach Lower Yoke 19
7. Attach Main Fan Unit 19
8. Confirm Orientation 20
9. Install Guy Wires 20
10. Mount the Variable Frequency Drive (VFD) 23
11. Install the Electronic Programming Module (EPM) 24
12. Wire the Fan and VFD 24
13. Install the Airfoils 25
14. Install the Hub Cover (Powerfoil 8/Powerfoil 8 Plus only) 26
Electrical Guidelines
Cable Types 27
Grounding 28
Input Voltage Irregularities 28
Delta Secondary 29
Branch Circuit Protection 30
VFD Wiring: ESFR (Early Suppression Fast Response) 31
VFD Wiring: 100-125 V & 200-240 V, 1 Φ Controller 32
VFD Wiring: 200–240 V, 3 Φ Controller 33
VFD Wiring: 400-480 V & 575-600 V, 3 Φ Controller 34
Daisy Chaining 35
Motor Wiring: 9-Lead, Dual Voltage, Wye Motor Configuration 36
Operating the
Controller
Starting and stopping the fan 37
Adjusting fan speed 37
Reversing direction of fan rotation 37
Operating the Fan
Heating Season 38
Cooling Season 38
Onboard VFD
1. Attach Mounting Brackets 39
2. Attach VFD 40
3. Attach Mounting Plate 40
4. Connect to VFD 40
Operation 42
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