Rev. 0107138 Copyright 2013 all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.Models: 4/5-Blade Vari-FanVari-Fan Ceiling Fan Installation Manual5.0 NOTES AND WARNINGS5.1 NOTES:5.1.1 It is recommended that all Nextek Fanworks DC ceiling fans be used inconjunction with the Nextek 12/24V Speed Controller.5.1.2 If operating in a 12V environment, the 12/24V speed control is required.5.1.3 The Nextek DC ceiling fans can be operated above 24VDC, but not toexceed 48VDC. A 48VDC Speed Controller can be special ordered. The12/24V speed control is designed to work only between 12V and 24V.5.1.4 A Nextek 12.6 watt solar panel is available and perfectly matched for thisDC powered ceiling fan and speed control.5.1.5 For new installations: This is a low-voltage 12/24V DC-powered device.Appropriate sizing of a solar panel, battery and battery charge controllerare essential for proper operation. Consult a qualified installer of DCdevices to insure correct configuration.5.1.6 For installation in existing DC power environment: Great care must betaken to ensure fan is wired properly in existing DC power environment.Warranty may be violated if attempting to operate in anything other than12/24V DC. Please consult a qualified technician.5.1.7 Failure to wire correctly or install in a non-recommended powerenvironment may violate your warranty.5.2 WARNINGS:5.2.1 To reduce the risk of fire or electrical shock use Nextek 12/24V speedcontrols only.5.2.2 To reduce the risk of personal injury, do not bend the blade bracketswhen installing the brackets or cleaning the fan. Do not insert foreignobjects in between rotating fan blades.5.2.3 To reduce the risk of personal injury, install the fan only to the buildingstructure according to these instructions, and use only the hardwaresupplied.5.3 CAUTIONS:5.3.1 Read entire instructions carefully before beginning installation.5.3.2 To avoid possible electrical shock, be certain electricity is shut off at mainpanel before wiring.5.3.3 All wiring must be in accordance with national and local electrical codes.If you are unfamiliar with wiring, you should use a qualified electrician.