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EMERSON Low Voltage Thermostat: Heat or Cool - Digital Thermostats
EMERSONDigital Thermostats

EMERSON Low Voltage Thermostat: Heat or Cool

SKU 3G-OTH-70508

Brand
EMERSON
Item
Low Voltage Thermostat: Heat or Cool
Category
Digital Thermostats
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Technical specs
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Technical Specifications

EMERSON
Brand
EMERSON
Shape
Rectangle
Voltage
20V AC
Digit Size
Standard
Application
Heat or Cool
Control Type
Slide Switch
Fan Settings
Auto-On
Key Features
Batteries Not Required
Changeover Type
Manual
System Settings
Cool-Heat-Off
Mounting Direction
Horizontal
Terminal Designations
L
Manufacturer Part Number
01F89 211S1
Temperature Differential
0.6° to 1.5°F
Temperature Control Range
45° to 99°F
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EMERSON Products
3G Electric (S) Pte. Ltd. — Singapore

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.

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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.
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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 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.
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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.
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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 Line Voltage Thermostat: Heat Only, Heat-Off, 45° to 90°F, Slide Switch, 120V AC, 1H (MPN 01E65 144). Key specifications — Application: Heat Only; Key Features: Soundproofed for Quiet Operation; System Settings: Heat-Off; Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 45° to 90°F; Stages: 1H; Voltage: 120V AC; Brand: EMERSON.
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EMERSON Line Voltage Thermostat: Heat Only, Heat-Off, 45° to 90°F, Slide Switch, 120V AC, 1H (MPN 01E65 144). Key specifications — Application: Heat Only; Key Features: Soundproofed for Quiet Operation; System Settings: Heat-Off; Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 45° to 90°F; Stages: 1H; Voltage: 120V AC; Brand: EMERSON.
EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations, 20V AC (MPN 1F79-111). 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: Y; System Settings: Cool-Emergency Heat-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
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EMERSON Low Voltage Thermostat: Heat or Cool, Manual, C/E/G/L/O/B/R/W2/Terminal Designations, 20V AC (MPN 1F79-111). 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: Y; System Settings: Cool-Emergency Heat-Heat-Off; Temperature Control Range: 45° to 99°F; Changeover Type: Manual.
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.
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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, 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.
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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, 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.
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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.