Emerson 3G-OTH-70474 — Technical Specifications

Name: Emerson 3G-OTH-70474 EMERSON Low Voltage Thermostat: Heat Only, RH/W, Auto, On-Off, On-Off/Auto, Vertical, Rectangle (MPN 1E78-140). Key specifications — Application: Heat Only; Key Features: Selectable Celsius or Fahrenheit Temperature Display; Temperature Differential: 0.8° to 1.5°F; Voltage: 20V AC; Terminal Designations: RH; System Settings: On-Off; Temperature Control Range: 45° to 99°F; Shape: Rectangle.
Brand: Emerson

The EMERSON Low Voltage Thermostat: Heat Only (MPN 1E78-140) is a digital thermostat designed for heat-only applications. It operates on 20V AC with a slide switch control, auto fan setting, and on-off system settings, featuring a selectable Celsius or Fahrenheit temperature display. The thermostat has a temperature differential of 0.8° to 1.5°F and a temperature control range of 45° to 99°F, with terminal designations RH and vertical mounting orientation.

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Technical Specifications

Parameter	Value
Type	RH/W, Auto, On-Off, On-Off/Auto, Vertical, Rectangle
Brand	EMERSON
Shape	Rectangle
Voltage	20V AC
Digit Size	Standard
Application	Heat Only
Control Type	Slide Switch
Fan Settings	Auto
Key Features	Selectable Celsius or Fahrenheit Temperature Display
System Settings	On-Off
Mounting Direction	Vertical
Terminal Designations	RH
Manufacturer Part Number	1E78-140
Temperature Differential	0.8° to 1.5°F
Temperature Control Range	45° to 99°F