Applications Guide

CSP-4702 Static Pressure (Bypass) Control 4 Application Guide, AN0114A Rev. A
Troubleshooting
No Rotation
NOTE: For about 15 seconds after power is applied,
no rotation occurs and one or both of the
LEDs will ash.
• Check that the shaft moves freely. (Press and
hold the gear disengagement lever and manually
rotate the shaft.)
• Check wiring. (See Wiring Issues section below.)
• Check for a tripped circuit breaker to the
transformer, for proper supply voltage from the
transformer (or power supply), and for enough
capacity (VA) for all connected devices. See their
respective data sheets and Tips for Connecting
24-Volt Power Application Note (AN0604D)
available on the KMC Controls web site.
• Check that the direction jumper is in the proper
position. See Rotation Direction on page 2.
Wrong Rotation Direction or Stroke Range
• Check the position of the direction jumper. See
Rotation Direction on page 2.
• Check the MIN ow limit. See Bypass Pressure
Setpoint on page 3.
• Check the adjustable stop position.
Wiring Issues
• Check for correct wiring at each device and
connected devices.
• Use a voltmeter and ohmmeter to check the
terminals for expected values.
• See Tips for Connecting 24-Volt Power Applica-
tion Note (AN0604D).
NOTE: Wiring must be adequate to avoid
excessive voltage drop on long runs! Allow
plenty of “cushion” in measurements A
meter may be too slow to register transient
dips or peaks during startup.
KMC Controls, Inc.
19476 Industrial Drive
New Paris, IN 46553
574.831.5250
www.kmccontrols.com
[e-mail]
© 2014 KMC Controls, Inc. AN0114A Rev. A
Important Notices
The material in this document is for information
purposes only. The contents and the product it
describes are subject to change without notice.
KMC Controls, Inc. makes no representations or
warranties with respect to this document. In no event
shall KMC Controls, Inc. be liable for any damages,
direct or incidental, arising out of or related to the
use of this document.
More Information
For specications, accessories, and other informa-
tion, see the CSP-4702 Data Sheet on the KMC web
site.
For VAV applications with the CTE-5202 ther-
mostat and other information, see the CTE-5202
Applications Guide (AN0912A).
For SSS-100x information, see the SSS-1000 Series
Data Sheet.