White Rodgers 1G66, 150 User Manual

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White Rodgers 1G66, 150 User Manual

1G66 and 150

ELECTRIC-HEAT THERMOSTAT

(Double Line Disconnect)

INSTALLATION INSTRUCTIONS

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

The Type 1G66 Electric Heat Thermostat is designed for use on all types of electrical heating installations such as cable heat, baseboards, wall insert heaters, etc.

The Type 1G66 thermostat is intended for use on 240 or 277 VAC where local codes require that a double line disconnect thermostat be used. This thermostat can also be used on 120 VAC. (See specific wiring information for 120 VAC.)

Dial Setting: This thermostat may be set anywhere between 40° and 80°F by simply turning the knob so the indicator on knob points to the desired setting.

The knob may be turned past 40° to the “OFF” position to obtain temporary shutdown of the heating equipment for short periods of time such as on weekends, vacation, etc. Turning knob to “OFF” position will break both sides of line.

NOTE: Only one side of line is broken during normal cycling of this thermostat.

50

60

40

70

 

OFF

80

This Thermostat includes:

Wall cover plate (required when thermostat will not hide wall imperfections behind old thermostat)

Two cover mounting screws Three Temperature Limiting Pins

PRECAUTIONS

This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction. Take care not to push or damage the internal bimetal sensing element during installation.

! 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.

All wiring must conform to local and national electrical codes and ordinances.

!WARNING

Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard.

Do not use on inductive loads. Inductive (motor) loads will damage control and could cause shock, fire hazard or failure of thermostat.

SPECIFICATIONS

Switch Rating: Non-Inductive

Temperature Range: 40° to 80°F

 

 

22A (5000W) 240VAC

Differential: 3.0°F

 

 

19A (5000W) 277VAC

Switch Action: Open on rise

 

 

22A (2500W) 120VAC

 

 

Contact Structure: Double Line Disconnect - DPST

 

 

 

 

 

 

 

 

 

 

 

White-Rodgers is a division

PART NO. 37-6756A

 

 

 

of Emerson Electric Co.

 

 

 

 

www.white-rodgers.com

0610

 

 

 

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