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EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal - Standard Thermostats
EMERSONStandard Thermostats

EMERSON Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal

The EMERSON Low Voltage Thermostat (MPN 1F85U-42PR) is a standard thermostat for heat and cool applications. It supports 2H/2C Conventional and 4H/2C Heat Pump stages, with a 5-1-1 programming capability and…

SKU 3G-OTH-71251

Brand
EMERSON
Item
Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/5-2/7 Day, Horizontal
Category
Standard Thermostats
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Technical Specifications

EMERSON
Manufacturer Part Number
1F85U-42PR
Type
Auto, Horizontal, Rectangle
Day
5-1-1/5-2/7
Shape
Rectangle
Stages
2H/2C Conventional, 4H/2C Heat Pump
Application
Heat and Cool
Control Type
Push Button
Changeover Type
Automatic
Mounting Direction
Horizontal
Terminal Designations
C
Humidification Control
No
Programming Capability
5-1-1
Temperature Control Range
45° to 99°F
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EMERSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EMERSON Low Voltage Thermostat (MPN 1F85U-42PR) is a standard thermostat for heat and cool applications. It supports 2H/2C Conventional and 4H/2C Heat Pump stages, with a 5-1-1 programming capability and automatic changeover. The rectangular unit has a temperature control range of 45° to 99°F and includes a C terminal designation.

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

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EMERSON Low Voltage Thermostat: Heat and Cool, Manual, 7 Day, Horizontal, Rectangle, Horizontal (MPN 1F95EZ-0671). Key specifications — Application: Heat and Cool; Stages: 2H/2C Conventional, 4H/2C Heat Pump; Programming Capability: 7 Day; Shape: Rectangle; Terminal Designations: 6; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
EMERSON Low Voltage Thermostat: Heat and Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, 5-2 (MPN 01F78 151S1). 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.
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EMERSON Low Voltage Thermostat: Heat and Cool, Manual, B/G/O/RC/RH/W/Terminal Designations, 5-2 (MPN 01F78 151S1). 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 and Cool, Manual, C/G/O/B/RC/RH/W/Terminal Designations, 5-1-1 (MPN 01F80 361). Key specifications — Application: Heat and Cool; Stages: 1H/1C Conventional, 1H/1C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.
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EMERSON Low Voltage Thermostat: Heat and Cool, Manual, C/G/O/B/RC/RH/W/Terminal Designations, 5-1-1 (MPN 01F80 361). Key specifications — Application: Heat and Cool; Stages: 1H/1C Conventional, 1H/1C Heat Pump; Programming Capability: 5-1-1; Shape: Rectangle; Terminal Designations: Y; Temperature Control Range: 45° to 99°F; Changeover Type: Manual; Brand: EMERSON.