EMERSON 1E78-140 Low Voltage Digital Thermostat
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…
SKU 3G-OTH-70474
Also listed as: 1E78140 · 1E78 140
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
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.
Frequently Asked Questions
What is the EMERSON 1E78-140 thermostat used for?
The EMERSON 1E78-140 is a low voltage digital thermostat designed for heat-only applications. It controls heating systems such as furnaces or boilers in residential or light commercial buildings, using a slide switch for system on-off control and an auto fan setting.
What are the specifications of the EMERSON 1E78-140 thermostat?
The EMERSON 1E78-140 operates on 20V AC with a temperature control range of 45° to 99°F and a differential of 0.8° to 1.5°F. It features a selectable Celsius or Fahrenheit display, RH terminal designation, vertical mounting, and a rectangular shape. It is heat-only with on-off system settings.
Where to buy the EMERSON 1E78-140 thermostat worldwide?
3G Electric supplies the EMERSON 1E78-140 thermostat to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the EMERSON 1E78-140 thermostat?
To install the EMERSON 1E78-140, first turn off power to the heating system. Mount the thermostat vertically on the wall using the provided base. Connect the RH wire to the RH terminal. Set the slide switch to desired system and fan settings. Restore power and verify operation.
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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.