Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

EMERSON Low Voltage Thermostat: Heat and Cool, Auto, Auto, Auto, Auto/Auto, Horizontal - Digital Thermostats
EMERSONDigital Thermostats

EMERSON Low Voltage Thermostat: Heat and Cool, Auto, Auto, Auto, Auto/Auto, Horizontal

The EMERSON Low Voltage Thermostat (MPN 1F85U-22NP) is a digital thermostat for heat and cool applications. It operates on 20V AC with automatic changeover and system settings, featuring a push-button control, auto…

SKU 3G-OTH-70255

Brand
EMERSON
Item
Low Voltage Thermostat: Heat and Cool, Auto, Auto, Auto, Auto/Auto, Horizontal
Category
Digital Thermostats
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

EMERSON
Manufacturer Part Number
1F85U-22NP
Type
Auto, Auto, Auto, Auto/Auto, Horizontal, Rectangle
Shape
Rectangle
Voltage
20V AC
Digit Size
Easy Read
Application
Heat and Cool
Control Type
Push Button
Fan Settings
Auto
Key Features
Built-In Level
Changeover Type
Automatic
System Settings
Auto
Mounting Direction
Horizontal
Terminal Designations
RH
Temperature Differential
0.5° to 1.2°F
Temperature Control Range
45° to 99°F
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The EMERSON Low Voltage Thermostat (MPN 1F85U-22NP) is a digital thermostat for heat and cool applications. It operates on 20V AC with automatic changeover and system settings, featuring a push-button control, auto fan settings, and a built-in level. The temperature control range is 45° to 99°F with a differential of 0.5° to 1.2°F, and it includes RH terminal designations.

Frequently Asked Questions

What is the EMERSON 1F85U-22NP thermostat used for?

The EMERSON 1F85U-22NP is a low-voltage digital thermostat designed for heat and cool applications. It provides automatic changeover and system settings, making it suitable for residential or light commercial HVAC systems. 3G Electric supplies this model globally, handling logistics and customs for worldwide delivery.

What are the specifications of the EMERSON 1F85U-22NP thermostat?

The EMERSON 1F85U-22NP operates on 20V AC with a temperature control range of 45° to 99°F and a differential of 0.5° to 1.2°F. It features push-button control, auto fan settings, a built-in level, and RH terminal designations. The thermostat mounts horizontally and has an easy-read digital display.

Where to buy the EMERSON 1F85U-22NP thermostat worldwide?

3G Electric supplies the EMERSON 1F85U-22NP thermostat to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this digital thermostat to your facility. Contact us for availability and lead time on this model.

How to install the EMERSON 1F85U-22NP thermostat?

Install the EMERSON 1F85U-22NP by mounting it horizontally on a wall, using the built-in level to ensure it is straight. Connect the 20V AC supply to the RH terminal. Set the system to auto and the fan to auto. Always follow local electrical codes and the manufacturer's instructions for safe installation.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal, Rectangle (MPN 1F85U-22PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional, 2H/2C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: C; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic; Brand: EMERSON.
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal, Rectangle (MPN 1F85U-22PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional, 2H/2C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: C; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic; Brand: EMERSON.
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal, Rectangle (MPN 1F85U-42PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional, 4H/2C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: C; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic; Brand: EMERSON.
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal, Rectangle (MPN 1F85U-42PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional, 4H/2C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: C; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic; Brand: EMERSON.
EMERSON Low Voltage Thermostat: Heat and Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations (MPN 1F83H-21PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional; Programming Capability: 7 Day; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations (MPN 1F83H-21PR). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional; Programming Capability: 7 Day; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
EMERSON Low Voltage Thermostat: Heat and Cool, Manual, C/G/O/B/RC/RH/W/Terminal Designations (MPN 1F83C-11PR). Key specifications — Application: Heat and Cool; Stages: 1H/1C Conventional, 1H/1C Heat Pump; Programming Capability: 5-2; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Manual, C/G/O/B/RC/RH/W/Terminal Designations (MPN 1F83C-11PR). Key specifications — Application: Heat and Cool; Stages: 1H/1C Conventional, 1H/1C Heat Pump; Programming Capability: 5-2; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
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.
EMERSON
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.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01E78 144). Key specifications — Application: Heat or Cool; Key Features: Selectable Celsius or Fahrenheit Temperature Display; Temperature Differential: 0.8° to 1.5°F; Voltage: 20V AC; Terminal Designations: W; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01E78 144). Key specifications — Application: Heat or Cool; Key Features: Selectable Celsius or Fahrenheit Temperature Display; Temperature Differential: 0.8° to 1.5°F; Voltage: 20V AC; Terminal Designations: W; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.

More from EMERSON

View all EMERSON parts
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations, 20V AC (MPN 01F89 211S1). Key specifications — Application: Heat or Cool; Key Features: Batteries Not Required; Temperature Differential: 0.6° to 1.5°F; Voltage: 20V AC; Terminal Designations: L; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations, 20V AC (MPN 01F89 211S1). Key specifications — Application: Heat or Cool; Key Features: Batteries Not Required; Temperature Differential: 0.6° to 1.5°F; Voltage: 20V AC; Terminal Designations: L; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B6/R/W2/Terminal Designations (MPN 1F83H-21NP). Key specifications — Application: Heat or Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 20V AC; Terminal Designations: C; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B6/R/W2/Terminal Designations (MPN 1F83H-21NP). Key specifications — Application: Heat or Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 20V AC; Terminal Designations: C; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/RC/RH/W/YO/B, Auto-On, Cool-Heat-Off (MPN 1F83C-11NP). Key specifications — Application: Heat or Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 20V AC; Terminal Designations: YO/B; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/RC/RH/W/YO/B, Auto-On, Cool-Heat-Off (MPN 1F83C-11NP). Key specifications — Application: Heat or Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 20V AC; Terminal Designations: YO/B; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/L/O/B/R/W2/Terminal Designations, Auto-On (MPN 1F89EZ-0251). Key specifications — Application: Heat or Cool; Key Features: Home-Sleep-Away Preset Buttons; Temperature Differential: 0.6° to 1.7°F; Voltage: 20V AC; Terminal Designations: G; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/L/O/B/R/W2/Terminal Designations, Auto-On (MPN 1F89EZ-0251). Key specifications — Application: Heat or Cool; Key Features: Home-Sleep-Away Preset Buttons; Temperature Differential: 0.6° to 1.7°F; Voltage: 20V AC; Terminal Designations: G; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/C/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01F86 344). Key specifications — Application: Heat or Cool; Key Features: Permanent Program Retention During Power Loss; Temperature Differential: 0.6° to 1.5°F; Voltage: 20V AC; Terminal Designations: Y; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/C/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01F86 344). Key specifications — Application: Heat or Cool; Key Features: Permanent Program Retention During Power Loss; Temperature Differential: 0.6° to 1.5°F; Voltage: 20V AC; Terminal Designations: Y; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, Auto, Auto, Auto/Auto, Horizontal, Rectangle (MPN 1F85U-42NP). Key specifications — Application: Heat and Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 30V AC; Terminal Designations: Y2; System Settings: Auto; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic.
EMERSON
EMERSON Low Voltage Thermostat: Heat and Cool, Auto, Auto, Auto, Auto/Auto, Horizontal, Rectangle (MPN 1F85U-42NP). Key specifications — Application: Heat and Cool; Key Features: Temperature Limits; Temperature Differential: 0.5° to 1.2°F; Voltage: 30V AC; Terminal Designations: Y2; System Settings: Auto; Temperature Control Range: 45° to 99°F; Changeover Type: Automatic.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01F78 144S1). Key specifications — Application: Heat or Cool; Key Features: Selectable Celsius or Fahrenheit Temperature Display; Temperature Differential: 0.8° to 1.5°F; Voltage: 30V AC; Terminal Designations: Y; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, Auto-On (MPN 01F78 144S1). Key specifications — Application: Heat or Cool; Key Features: Selectable Celsius or Fahrenheit Temperature Display; Temperature Differential: 0.8° to 1.5°F; Voltage: 30V AC; Terminal Designations: Y; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/O/B/R/W/Terminal Designations, Auto-On (MPN 1F86EZ-0251). Key specifications — Application: Heat or Cool; Key Features: Change Filter Reminders; Temperature Differential: 0.6° to 1.7°F; Voltage: 20V AC; Terminal Designations: C; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
EMERSON
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/G/O/B/R/W/Terminal Designations, Auto-On (MPN 1F86EZ-0251). Key specifications — Application: Heat or Cool; Key Features: Change Filter Reminders; Temperature Differential: 0.6° to 1.7°F; Voltage: 20V AC; Terminal Designations: C; System Settings: Cool-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.