Product Specification Guide
Overhead Hvls Fan Controls – 4-Speed Analog Control

Note to User: This document is subject to copyright protection and is proprietary to Greenheck Fan Corporation. However, Greenheck Fan Corporation authorizes the user a limited non-exclusive license to use this document or portions of it for the purpose of preparing written product specifications for the appropriate CSI MasterFormat category. All information in this document as provided by Greenheck Fan Corporation is informational in nature and is provided without representation or warranty of any kind as to the user or any other party, including, without limitation, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR NON-INFRINGEMENT. To the greatest extent permitted by applicable law, Greenheck Fan Corporation assumes no liability, and user assumes all liability and risk, for the use or results from the use of this document or the information contained herein, whether as modified by the user or not. Users should consult www.greenheck.com to verify that this document represents the most current version.

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Specifier Notes: This product specification guide must be carefully reviewed and edited by the Engineer to meet the requirements of the project and local building code. Coordinate with other specification sections and the drawings.

Delete all unnecessary “Specifier Notes” when editing this section.
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Provide overhead fan controls as shown on plans and in accordance with the following specifications:

1.	GENERAL

1.1	SUMMARY

A.	Section Includes: Controls for High-Volume, Low-Speed (HVLS) Overhead Fans
B.	Related Sections:

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Specifier Notes: Delete any sections below not relevant to this project; add others as required.
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1.	01 00 00 General Requirements
2.	23 00 00 Heating, Ventilating, and Air-Conditioning (HVAC)
3.	23 34 00 HVAC Fans
4.	25 00 00 Integrated Automation
5.	26 00 00 Electrical

1.2	WARRANTY

A.	Manufacturer's Warranty: Submit, for Owner's acceptance, manufacturer's standard warranty document executed by authorized company official. Manufacturer's warranty is in addition to, and not a limitation of, other rights Owner may have under Contract Documents.
1.	The warranty of this equipment is to be free from defects in material and workmanship for a period of one year from the purchase date. Any units or parts which prove defective during the warranty period will be replaced at the Manufacturer’s option when returned to Manufacturer, transportation prepaid.

2.	PRODUCTS

2.1	MANUFACTURER

A.	Greenheck, PO Box 410, Schofield, Wisconsin 54476. Phone (715) 359-6171. 
Fax (715)355-2399. Website: www.greenheck.com

2.2	HIGH VOLUME, LOW SPEED (HVLS) OVERHEAD FAN CONTROLS - GREENHECK 4-SPEED ANALOG CONTROL

A.	General Description:
1.	High volume, low speed (HVLS) overhead fan control shall be of the rotary switch interface type with an enclosure rating of IP40 or better for use in a variety of commercial and industrial applications.
2.	User interface shall include a 4-position rotary switch control for fan speed modulation and 3-position switch for fan rotation control – Forward/Off/Reverse. 
3.	Overhead fan control shall be designed to mount to a single-gang junction box or wall by means of two visible screws for ease of installation.
4.	Overhead fan control does not require power. HVLS fans are controlled by normally open dry contacts. 
5.	Overhead fan control shall include a rear mounted terminal strip for easy connection to overhead fans via shielded 18/6 communication cable.
6.	Compatible with models DS-3 and DS-6 manufactured after 4/1/2026. Not compatible with models DC-5 or DM-3.
B.	System Operation:
1.	Overhead fan control shall be specifically designed to communicate with one overhead fan via the analog communication protocol. 
2.	Overhead fan control shall be capable of adjusting fan speed between four preset speeds (25/40/75/100%). 
3.	Overhead fan control shall feature a 3-position switch for fan rotation control – Forward/Off/Reverse.

3.	EXECUTION

3.1	MANUFACTURER'S INSTRUCTIONS

A.	Compliance: Comply with manufacturer's product data, including technical bulletins, product catalog, and installation instructions.

3.2	INSTALLATION

A.	Install overhead fan system as indicated in the Installation, Operation, and Maintenance Manual (IOM) and contract drawings.
B.	Install overhead fan controls in accordance with manufacturer's instructions.

3.3	SYSTEM STARTUP

A.	Refer to Installation, Operation, and Maintenance Manual (IOM).

END OF SECTION