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EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations - Digital Thermostats
EMERSONDigital Thermostats

EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations

The EMERSON Low Voltage Thermostat (SKU 2TE31, MPN 01E78 144) is a digital thermostat for Heat or Cool applications. It operates on 20V AC with a manual changeover type and system settings of Cool-Heat-Off. Key specs…

SKU 3G-OTH-70478

Brand
EMERSON
Item
Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations
Category
Digital Thermostats
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Technical Specifications

EMERSON
Manufacturer Part Number
01E78 144
Type
Manual, B/G/O/RC/RH/W/Terminal Designations, Auto-On
Shape
Rectangle
Voltage
20V AC
Digit Size
Standard
Application
Heat or Cool
Control Type
Slide Switch
Fan Settings
Auto-On
Key Features
Selectable Celsius or Fahrenheit Temperature Display
Changeover Type
Manual
System Settings
Cool-Heat-Off
Mounting Direction
Vertical
Terminal Designations
W
Temperature Differential
0.8° to 1.5°F
Temperature Control Range
45° to 99°F
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EMERSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EMERSON Low Voltage Thermostat (SKU 2TE31, MPN 01E78 144) is a digital thermostat for Heat or Cool applications. It operates on 20V AC with a manual changeover type and system settings of Cool-Heat-Off. Key specs include a temperature control range of 45° to 99°F, a temperature differential of 0.8° to 1.5°F, and a selectable Celsius or Fahrenheit temperature display. The thermostat features a slide switch control, Auto-On fan setting, and terminal designation W.

Frequently Asked Questions

What is the EMERSON Low Voltage Thermostat 01E78 144 used for?

The EMERSON Low Voltage Thermostat 01E78 144 is used for basic heat or cool control in residential or light commercial HVAC systems. It operates on 20V AC with manual changeover and system settings of Cool-Heat-Off, making it suitable for simple temperature management where automatic changeover is not required.

What are the specifications of the EMERSON Low Voltage Thermostat 01E78 144?

The EMERSON Low Voltage Thermostat 01E78 144 operates on 20V AC with a temperature control range of 45° to 99°F and a temperature differential of 0.8° to 1.5°F. It features a slide switch control, Auto-On fan setting, manual changeover, and terminal designation W. The display is selectable in Celsius or Fahrenheit.

Where to buy the EMERSON Low Voltage Thermostat 01E78 144 worldwide?

You can source the EMERSON Low Voltage Thermostat 01E78 144 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this thermostat.

How to install the EMERSON Low Voltage Thermostat 01E78 144?

To install the EMERSON Low Voltage Thermostat 01E78 144, first turn off power to the HVAC system. Mount the thermostat vertically on a wall, connect the W terminal to the heating or cooling equipment, and secure the slide switch. Set the desired temperature within the 45° to 99°F range and select Celsius or Fahrenheit display as needed.

Used in

Common applications for EMERSON
Commercial refrigeration — Emerson single-stage electronic control (SKU 44R204) for walk-in coolers and freezers
HVAC system retrofits — Emerson low-voltage digital thermostat (SKU 3MY10) for heat or cool control in office buildings
Industrial process temperature — Emerson line-voltage mechanical thermostat (SKU 2E399) for equipment heating in manufacturing
Residential heating — Emerson analog heat-only thermostat (SKU 3MU96) for baseboard or radiant systems
Heat pump installations — Emerson standard thermostat (SKU 42PD14) for 1H/1C heat pump systems in commercial spaces
Cooling-only applications — Emerson mechanical cool-only thermostat (SKU 3MU97) for server rooms or storage areas

EMERSON Products

3G Electric supplies EMERSON digital thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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