Install Instructions

GENERAL PRECAUTIONARY INFORMATION
Fan Control Centers
Printed in U.S.A.
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
PART NO. 37-5786A
9716
THIS CONTROL MUST BE INSTALLED BY A QUALIFIED
INSTALLER.
All wiring must conform to local and national electrical codes
and ordinances.
Do not use on circuits exceeding specified voltage.
Higher voltages will damage control and could
cause shock or fire hazard
If power disconnect switch is not in sight, lock it in the OFF
position and tag it to prevent unexpected application of
power.
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main
fuse or circuit breaker box until installation is com-
plete.
Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and
dangerous operation.
Following installation or replacement, follow ap-
pliance manufacturers’ recommended installation/
service instructions to insure proper operation.
CAUTION
!
Installation Instructions
DESCRIPTION
The fan control center provides low voltage control of line
voltage circuits and can be used to control two-speed blower
motors and auxiliary circuits in heating or cooling equip-
ment.
FEATURES:
Class II (40 V.A.) inherently energy limiting transformer
Nonresettable, nonreplaceable overcurrent protection
For general use in Class II, heating or cooling applica-
tions.
Low voltage terminal board with standard terminal desig-
nation for easy wiring.
14 gauge lead wires with quick-connect plug-in terminals
provide wiring flexibility.
Mounts on standard 4 x 4 junction box.
INSTALLATION
Turn off electrical power to heating and cooling systems.
Record the positions and color codes of the leads on the
existing relay. Also record all external wiring connections
(line and low voltage).
Use the color-coded terminal leads installed on the new fan
control center to duplicate the wiring of the existing control.
Make sure all connecting points are the same for both
relays.
Lead wires connecting the low voltage relay coil to terminals
“C” and “G” on the low voltage terminal panel are factory
installed to prevent accidental connection to the line voltage
circuit. When making line-voltage connections, be sure no
connections are made to low- voltage control circuit.
Make all line voltage connections following the information
recorded previously.
Mount the fan control center on the junction box.
Connect low voltage wiring to terminal board on fan control
center following hookups recorded previously.
Energize system and check for proper operation.
Black (Com)
Red
Brown
Purple (Com)
Red/Yel
Yellow
Plug-In Relay
G
C
To 24 V Terminals
“G” and “C”
on Terminal Board
Note: Record the leadwire color with its corresponding
terminal number for future reference.
NOTE
NOTE
WARNING
!