COOK Vari-Flow VFRSC User manual

1P000283-001VFRSC IO&M
This publication contains installation, operation and main-
tenance instructions for the standard Vari-Flow®Remote
Speed Controller.
Carefully read this publication prior to any
installation or maintenance procedure.
Any additional publications can be obtained from Loren
Cook Company through any of the following:
• lorencook.com
• [email protected]
• 417-869-6474 ext. 166
For information and instructions on special equipment, con-
tact Loren Cook Company Customer Service Department at
417- 869 - 6 474.
Storage
If the controller is stored for any length of time prior to instal-
lation, store controller in the original packaging inside from the
weather and keep temperature between -22°F to 122°F (-30°C
to 50°C).
Installation
The VFRSC can be mounted in a electrical box with the two
screws provided. This device requires a 24VAC/DC power
supply. VFRSC is UL Listed when mounted in UL Listed en-
closure. Minimum transformer output of 1VA.
Location and Maintenance
Consider the following points while choosing a location for
the Vari-Flow Remote Speed Controller.
• Less than 100 feet of wiring to motor or to VFABK.
• Install the controller indoors.
• Do not place the controller on the oor.
• Maintain a temperature between 30°F to 110°F (-1°C to
43°C). A temperature beyond this range may cause conden-
sation and sweating of metal parts.
• Maintain a low humidity, dry, and clean atmosphere. Ensure
that the controller is not in the path of blowing dust, rain, or
snow.
Operation
This device outputs a 0-10v signal voltage. The dial does not
indicate voltage, but a range of available voltage from max to
min. Vari-Flow motors operate on a 2-10V signal. Below 2V,
the motor stops but is still powered.
®
REMOTE SPEED CONTOLLER
Vari-Flow® VFRSC
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Wiring
All wiring should be in accordance with local ordinances and
the National Electrical Code, NFPA 70. Ensure the power sup-
ply (voltage, frequency, and current carrying capacity of wires)
is in accordance with the motor nameplate. When paired with
Air Balance Kit (VFABK), see Air Balance Kit supplemental in-
stallation instructions for wiring.
0-10VDC
24VAC/DC
Common
Remote Speed Controller

2VFRSC IO&M P000283-001
June 2019
Corporate O󰀩ces: 2015 E. Dale St. Springeld, MO 65803
Phone [phone] | Fax [phone] | lorencook.com
Limited Warranty
Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein.
For a period of one (1) year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be
paid by you. This warranty is granted only to the original purchaser placing the fan in service. This warranty is void if the fan or any part thereof has been
altered or modied from its original design or has been abused, misused, damaged or is in worn condition or if the fan has been used other than for the
uses described in the company manual. This warranty does not cover defects resulting from normal wear and tear. To make a warranty claim, notify Loren
Cook Company, General O󰀩ces, 2015 East Dale Street, Springeld, Missouri 65803-4637, explaining in writing, in detail, your complaint and referring
to the specic model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be notied, within thirty
(30) days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled. If you are entitled to warranty relief, a warranty
adjustment will be completed within sixty (60) business days of the receipt of your written complaint by Loren Cook Company. This warranty gives only
the original purchaser placing the fan in service specically the right. You may have other legal rights which vary from state to state.