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To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
main fuse or circuit breaker box until installation
is complete.
Label all wires prior to disconnection when ser-
vicing controls. Wiring errors can cause improper
and dangerous operation.
Following installation or replacement, follow
appliance manufacturers’ recommended instal-
lation/service instructions to insure proper op-
eration.
PART NO. 37-5788A
9721
Printed in U.S.A.
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
WHITE-RODGERS
757-1 Fan Control
758-1 Limit Control
INSTALLATION INSTRUCTIONS
The Fan control is a normally open SPST switch which
closes on a rise in temperature and has an adjustable
temperature setting.
The Limit control is a normally closed SPST switch which
opens on a rise in temperature to limit the maximum
allowable temperature and has an adjustable tempera-
ture setting.
Operator: Save these instructions for future use!
PRECAUTIONS
THIS CONTROL MUST BE INSTALLED BY A QUALI-
FIED INSTALLER.
All wiring must conform to local and national electrical
codes and ordinances.
This control is a precision instrument, and should be
handled carefully. Rough handling or distorting compo-
nents could cause the control to malfunction.
This control has been accurately calibrated at the factory.
Any attempt to re-calibrate this control will void the White-
Rodgers warranty.
Do not use on circuits exceeding specified volt-
ages. Higher voltages will damage control and
could cause shock or fire hazard.
If in doubt about whether your wiring is millivolt,
low or line voltage, have it inspected by a quali-
fied heating and air conditioning contractor or a
licensed electrician.
CAUTION
!
This control is particularly well suited for use where space
limitations are a problem. The small bimetal sensing
element is completely in the air stream to give quick
response. This control has a snap-action switch with
heavy duty contacts.
WARNING
!
SPECIFICATIONS
AC ELECTRICAL RATINGS:
8 Amps at 120 VAC or 4 Amps at 240 VAC
Pilot Duty: 125 VA
Temperature Ratings:
Fan control - Variable 70° to 160°F (21° to 71°C).
Fixed differential 25°F (14°C)
Limit control - Variable 110° to 200°F (43° to 93°C).
Fixed differential 25°F (14°C)
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398