Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
INSTALLATION INSTRUCTIONS
TYPE 1127
HOT WATER CONTROL
Surface Type - S.P.D.T.
THESE CONTROLS MUST BE INSTALLED BY A QUALIFIED
INSTALLER.
Do not exceed the specification ratings.
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 components could cause
the control to malfunction.
This control has been accurately calibrated at the factory. Any
attempt to calibrate this control will void the White-Rodgers
warranty.
CAUTION
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
PRECAUTIONS
This control is designed for use on Hot Water Heating systems.
The highly sensitive Hydraulic-Action element is held snugly
in contact with the pipe or tank to provide quick response to
changes in water temperature.
Type 1127 has single-pole, double-throw switch action, offering
terminals that have open-on-rise switch action as well as close-
on-rise switch action. This control may be used as a high limit
control, low limit control, circulator control, or as a combination
low limit and circulator control.
DESCRIPTION
Index Page
Installation 2
Wiring Connections 2
Setting the Control 3
www.white-rodgers.com
www.emersonclimate.com
PART NO. 37-1209C
Replaces 37-1209B
1222
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