Emerson 1E78-140

Emerson 1E78-140 Non-Programmable Heat Only Thermostat User Manual

Model: 1E78-140

Sava lalana

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Emerson 1E78-140 Non-Programmable Heat Only Thermostat. Please read this manual thoroughly before installation and use to ensure proper function and safety.

The Emerson 1E78-140 is designed for use with most single-stage heat-only systems, including 24-volt and millivolt systems. It is not compatible with electric baseboard heat or certain other systems.

Fametrahana sy fametrahana

Fitaovana ilaina

  • Screwdriver
  • Drill (if new mounting holes are needed)
  • Wire strippers (raha ilaina)

Esory ny Thermostat taloha

  1. Turn off power to your heating system at the main fuse or circuit breaker panel.
  2. Esory ny fonon'ny thermostat taloha.
  3. Take a photo of the existing wiring connections for reference.
  4. Disconnect the wires from the old thermostat terminals, noting which wire was connected to each terminal.
  5. Remove the old thermostat base from the wall.

Fametrahana ny Thermostat Vaovao

  1. Saraho amin'ny fotony thermostat ny fonony eo anoloana.
  2. Position the new thermostat base on the wall. Use the provided screws and anchors to secure it.

Wiring

Zava-dehibe: Ensure power is off before wiring. This thermostat is for 2-wire heat-only systems. Connect wires only to R and W terminals.

Refer to the wiring diagram below. Identify each wire attached to the old thermostat by taking a photo of old wiring.

Wiring diagram for Emerson 1E78-140 thermostat showing connections for R and W terminals, along with included batteries and mounting screws.

Image: Wiring diagram for the Emerson 1E78-140 thermostat. It illustrates connections for 2-wire heat-only systems to R and W terminals. The image also shows two AAA Energizer batteries and various mounting screws and anchors included with the thermostat. A caution notice regarding battery life and freeze hazard is visible.

  • Connect the wire from your heating system's R terminal to the R terminal on the thermostat.
  • Connect the wire from your heating system's W terminal to the W terminal on the thermostat.

Fametrahana bateria

The thermostat requires two AAA batteries for operation. Install the batteries into the compartment located on the back of the thermostat, observing the correct polarity (+/-).

anoloana view of the Emerson 1E78-140 Non-Programmable Heat Only Thermostat, displaying '70' on the digital screen and up/down temperature adjustment buttons.

Sary: Front view of the Emerson 1E78-140 thermostat. The digital display shows "70" as the current temperature. To the right of the display are two gray buttons for adjusting the temperature up and down. Below the Emerson logo, a system switch is visible, set to "OFF HEAT".

After wiring and battery installation, attach the thermostat front cover to the base.

Turn on power to your heating system at the main fuse or circuit breaker panel.

Torolàlana miasa

System Switch

The system switch is located on the front of the thermostat. It has two positions:

  • eny; Turns the heating system off.
  • HAFANA: Mampandeha ny rafitra fanafanana mba hihazonana ny mari-pana napetraka.

Fametrahana ny maripana

Use the Up (▲) and Down (▼) buttons located next to the digital display to adjust your desired temperature setting. The thermostat will maintain this temperature with a precision of plus/minus 1 degree Fahrenheit.

Jiro lamosina

The digital display features a backlight for improved visibility, especially in low-light conditions. The backlight activates when buttons are pressed.

fikarakarana

Fanoloana bateria

When the "Change Battery" indicator (a battery icon) is displayed on the screen, the batteries have limited remaining life and should be replaced soon. The system will not operate with dead batteries.

  1. Esory ny fonon'ny thermostat.
  2. Esory ny bateria AAA taloha.
  3. Insert two new AAA alkaline batteries, ensuring correct polarity.
  4. Soloy ny fonon'ny thermostat.

FANADIOVANA

Diovy ny thermostat amin'ny malefaka, damp lamba. Aza mampiasa mpanadio abrasive na solvents.

Fanamboarana

OLANAAntony mety hitrangavahaolana
Foana na manjavozavo ny fampisehoana.Batterie maty na ambany.Soloy ny bateria AAA roa.
Tsy mandeha ny rafitra fanafanana.
  • Ao amin'ny toerana OFF ny bokotra fiasan'ny rafitra.
  • Maty ny bateria.
  • Power to heating system is off.
  • Tariby tsy mety.
  • Set system switch to HEAT.
  • Soloy bateria.
  • Check circuit breaker/fuse for heating system.
  • Verify wiring connections (R and W terminals).
"Change Battery" icon displayed.Herin'ny bateria ambany.Replace the two AAA batteries promptly.

fepetra arahana

endri-javatraantsipirihany
MarikaEmerson
Laharana modely1E78-140
Karazana ControllerKitiho ny bokotra
Endri-javatra manokanaFampisehoana maripana
Karazana fanaraha-maso ny maripanaBOKY
Anisan'ny singaThermostat, Temperature Sensor
Loharanon-keryElectric (2 AAA batteries for display/control)
BOKYtage24 Volts (for system operation)
Karazana fampisehoanaLED
Fomba fanaraha-masoTsindrio (bokotra)
Karazana fametrahanaWall Mount
StyleHafanàm-po
Jiro lamosinaENY
mifanentanaNy ankamaroan'ny tokan-tenatage heat-only systems (24V and millivolt). Not compatible with electric baseboard heat.
fametrahana mazava tsara+/- 1 degree F
sisiny view of the Emerson 1E78-140 thermostat held in a hand, showing its dimensions as 5.5 inches (14 cm) in height.

Sary: lafiny iray view of the Emerson 1E78-140 thermostat, held in a hand for scale. The image indicates the thermostat's height is 5.5 inches (14 cm).

Warranty Information

Specific warranty details for the Emerson 1E78-140 thermostat are typically provided with the product packaging or can be obtained directly from the manufacturer, Emerson. Please refer to the documentation included in your product box or visit the official Emerson webtranonkala hahazoana ny fepetra sy fifanarahana momba ny garantie farany indrindra.

Fanohanana ny mpanjifa

For technical assistance, troubleshooting beyond this manual, or inquiries regarding your Emerson 1E78-140 thermostat, please contact Emerson customer support. Contact information can usually be found on the product packaging or on the official Emerson website.

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