White Rodgers 755-1 - Manual

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. 37-5787A
9722
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
754-1, 755-1, 756-1
Electric Water Heater Control
INSTALLATION INSTRUCTIONS
This control is designed to meet the high electrical capac-
ity requirements of electric water heaters.
The temperature control is a normally closed switch
which opens on a rise in temperature. The SPST version
(755-1) will control one heating element. The SPDT
version (756-1) will control two heating elements when
used with W-R type 755-1. (See wiring diagrams.)
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 !
The limit control (754-1) is a normally closed DPST switch
which opens on a rise in temperature to limit the maximum
allowable temperature. It has manual reset.
Both switches are calibrated to meet the requirements for
typical residential type storage tank water heaters.
WARNING !
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398