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EMERSON 1F87U-42WF Low Voltage WiFi Thermostat - Residential/Light Commercial Thermostats
EMERSONResidential/Light Commercial Thermostats

EMERSON 1F87U-42WF Low Voltage WiFi Thermostat

The EMERSON Low Voltage WiFi Thermostat (SKU 1F87U-42WF, MPN 1F87U-42WF) is a residential/light commercial thermostat for heat and cool applications. It features push-button control, a white housing, fully…

SKU 3G-OTH-70602

Also listed as: 1F87U42WF · 1F87U 42WF

Brand
EMERSON
Item
1F87U-42WF Low Voltage WiFi Thermostat
Category
Residential/Light Commercial Thermostats
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

EMERSON
Manufacturer Part Number
1F87U-42WF
Type
White, Push Button
Application
Heat and Cool
Control Type
Push Button
Customizable
7-Day/Fully
Fan Settings
Auto-On
Housing Color
White
Smart Capabilities
Smart Alerts
Terminal Designations
Y2
Humidification Control
Yes
Programming Capability
Fully Customizable

Technical Documents

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EMERSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EMERSON Low Voltage WiFi Thermostat (SKU 1F87U-42WF, MPN 1F87U-42WF) is a residential/light commercial thermostat for heat and cool applications. It features push-button control, a white housing, fully customizable 7-day programming, and smart alerts. The thermostat includes Y2 terminal designations and supports humidification control with auto-on fan settings.

Frequently Asked Questions

What is the EMERSON Low Voltage WiFi Thermostat used for?

The EMERSON Low Voltage WiFi Thermostat (MPN 1F87U-42WF) controls heating and cooling in residential and light commercial buildings. It supports 7-day fully customizable programming, smart alerts, and humidification control, making it suitable for homeowners and facility managers seeking energy-efficient temperature management.

What are the specifications of the EMERSON 1F87U-42WF thermostat?

This EMERSON thermostat features push-button control, a white housing, Y2 terminal designations, and auto-on fan settings. It offers fully customizable 7-day programming, smart alerts, and humidification control. It operates as a low-voltage WiFi thermostat for heat and cool applications in residential and light commercial settings.

Where to buy the EMERSON 1F87U-42WF thermostat worldwide?

3G Electric supplies the EMERSON 1F87U-42WF thermostat worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this thermostat for your residential or light commercial HVAC project.

How to install the EMERSON Low Voltage WiFi Thermostat?

Installation typically involves mounting the thermostat base, connecting wires to Y2 and other terminals per the system’s wiring diagram, and attaching the faceplate. Ensure power is off before wiring. Follow the manufacturer’s manual for WiFi setup and 7-day programming. For complex systems, consult a licensed HVAC technician.

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 residential/light commercial thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
The EMERSON 1F95-1280 is a low voltage thermostat for heating and cooling applications. It features a touch screen interface, automatic changeover, and 7-day programming capability. Supports 2H/2C conventional or 4H/2C heat pump systems, with a temperature control range of 45° to 99°F and humidification control. Designed for horizontal mounting, it includes Y2 terminal designation
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The EMERSON 1F95-1280 is a low voltage thermostat for heating and cooling applications. It features a touch screen interface, automatic changeover, and 7-day programming capability. Supports 2H/2C conventional or 4H/2C heat pump systems, with a temperature control range of 45° to 99°F and humidification control. Designed for horizontal mounting, it includes Y2 terminal designation
Rectangular, horizontal-mount thermostat with push-button control and automatic changeover. Supports 2H/2C conventional or 4H/2C heat pump systems. Programmable 5-1-1/7-day schedule with temperature range 45° to 99°F. Terminal designation Y. Suitable for residential or light commercial heating and cooling applications
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Rectangular, horizontal-mount thermostat with push-button control and automatic changeover. Supports 2H/2C conventional or 4H/2C heat pump systems. Programmable 5-1-1/7-day schedule with temperature range 45° to 99°F. Terminal designation Y. Suitable for residential or light commercial heating and cooling applications
This EMERSON thermostat provides manual changeover between heating and cooling modes with a touch screen interface. It supports 2H/2C conventional or 4H/2C heat pump systems and offers 7-day programming for temperature scheduling. The rectangular unit mounts horizontally and controls temperatures from 45° to 99°F with 6 terminal designations
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This EMERSON thermostat provides manual changeover between heating and cooling modes with a touch screen interface. It supports 2H/2C conventional or 4H/2C heat pump systems and offers 7-day programming for temperature scheduling. The rectangular unit mounts horizontally and controls temperatures from 45° to 99°F with 6 terminal designations
EMERSON 01F95 1277 is a low voltage thermostat for heat and cool applications. It features a touch screen, automatic changeover, and 5-1-1 programming. Supports 2H/2C conventional or 4H/2C heat pump systems. Temperature control range: 45° to 99°F. Horizontal mount, rectangular shape
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EMERSON 01F95 1277 is a low voltage thermostat for heat and cool applications. It features a touch screen, automatic changeover, and 5-1-1 programming. Supports 2H/2C conventional or 4H/2C heat pump systems. Temperature control range: 45° to 99°F. Horizontal mount, rectangular shape
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/7 Day, Horizontal, Rectangle, Horizontal (MPN 1F95-0680)
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/7 Day, Horizontal, Rectangle, Horizontal (MPN 1F95-0680)
Rectangular digital thermostat for heat or cool applications. Push-button controls with manual changeover and Cool-Heat-Off system settings. Fan setting Auto-On. Home-Sleep-Away preset buttons. Terminal designation G. Horizontal mounting. Temperature control range 45° to 99°F, differential 0.6° to 1.7°F. Operates on 20V AC
EMERSON
Rectangular digital thermostat for heat or cool applications. Push-button controls with manual changeover and Cool-Heat-Off system settings. Fan setting Auto-On. Home-Sleep-Away preset buttons. Terminal designation G. Horizontal mounting. Temperature control range 45° to 99°F, differential 0.6° to 1.7°F. Operates on 20V AC

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