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PRO-1 T855SH Universal Programmable Thermostat – Up to 5 Heat / 3 Cool, Auto Changeover
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PRO-1 T855SH Universal Programmable Thermostat – Up to 5 Heat / 3 Cool, Auto Changeover

PRO-1 T855SH Universal Programmable Thermostat – Up to 5 Heat / 3 Cool, Auto Changeover

PRO-1 T855SH Universal Programmable Thermostat – Residential & Light Commercial HVAC Control

Take complete control of your HVAC system with the PRO-1 T855SH Universal Programmable Thermostat. Designed for both residential and light commercial applications, this thermostat supports up to 5 Heat / 3 Cool stages for heat pumps and 2 Heat / 2 Cool for conventional systems, making it one of the most versatile options available. Featuring auto changeover, an intuitive programming menu, and a large 8 sq. inch backlit display, the T855SH offers convenience, flexibility, and precision temperature control.

Key Features & Benefits:

Universal Compatibility – Works with heat pumps (5H/3C) and conventional HVAC systems (2H/2C).
Programmable or Non-Programmable Modes – Choose 7-day, 5/1/1, or non-programmable settings based on your needs.
Auto Changeover – Automatically switches between heating and cooling for year-round comfort.
Large 8 Sq. Inch Display – Blue backlit LCD screen for easy readability in any lighting conditions.
Intuitive Programming Icons – Wake, leave, return, and sleep icons simplify scheduling.
Glow-in-the-Dark Light Button – Easily adjust settings at night.
Programmable Fan Control – Customize fan settings for optimal airflow and energy efficiency.
Room Temperature Calibration Adjustment – Fine-tune temperature accuracy for precise comfort.
Heating & Cooling Cycle Rate Adjustments – Set separate cycle rates for heating and cooling, including 2nd-stage adjustments.
Keypad Lockout & Setpoint Limits – Prevent unauthorized temperature adjustments.
5-Minute Compressor Delay Protection – Protects your HVAC system from short cycling (selectable on/off).
Filter Change Indicator – Set reminders for air filter changes (selectable on/off).
Easy Installation – Features color-coded terminal blocks, a universal sub-base, and wall/junction box mounting for quick setup.
Electric or Gas Configurable – Compatible with both electric and gas heating systems.
Battery or Hardwire Power – Operates on batteries or a 24V power source.
5-Year Warranty – Backed by a 5-year manufacturer warranty for peace of mind.

Specifications:

  • Brand: PRO-1
  • Model: T855SH
  • System Compatibility: Universal (Residential & Light Commercial)
  • Heat/Cool Stages: 5 Heat / 3 Cool (Heat Pump), 2 Heat / 2 Cool (Conventional)
  • Thermostat Type: Programmable (7-Day, 5/1/1) or Non-Programmable
  • Power Options: Battery or Hardwire (24V)
  • Display: 8 sq. inch blue backlight
  • Mounting: Wall or Junction Box
  • Thermostat Mobility: Stationary
  • Warranty: 5 Years

Why Choose the PRO-1 T855SH?

The PRO-1 T855SH Universal Thermostat is ideal for homeowners, property managers, and businesses looking for a high-quality, feature-rich thermostat that offers maximum control over heating and cooling systems. Whether you're using a high-stage heat pump or a conventional system, this thermostat delivers energy efficiency, ease of use, and advanced programming options.

Need Help? Contact Us!

If you have any questions about the PRO-1 T855SH Universal Programmable Thermostat, please call us to speak with a customer service representative. They will be happy to help!

As always, purchase your MRCOOL parts and equipment from the USA’s most trusted MRCOOL dealer, MRCOOL DIY Direct.

$59.85

Original: $171.00

-65%
PRO-1 T855SH Universal Programmable Thermostat – Up to 5 Heat / 3 Cool, Auto Changeover

$171.00

$59.85

PRO-1 T855SH Universal Programmable Thermostat – Up to 5 Heat / 3 Cool, Auto Changeover

PRO-1 T855SH Universal Programmable Thermostat – Residential & Light Commercial HVAC Control

Take complete control of your HVAC system with the PRO-1 T855SH Universal Programmable Thermostat. Designed for both residential and light commercial applications, this thermostat supports up to 5 Heat / 3 Cool stages for heat pumps and 2 Heat / 2 Cool for conventional systems, making it one of the most versatile options available. Featuring auto changeover, an intuitive programming menu, and a large 8 sq. inch backlit display, the T855SH offers convenience, flexibility, and precision temperature control.

Key Features & Benefits:

Universal Compatibility – Works with heat pumps (5H/3C) and conventional HVAC systems (2H/2C).
Programmable or Non-Programmable Modes – Choose 7-day, 5/1/1, or non-programmable settings based on your needs.
Auto Changeover – Automatically switches between heating and cooling for year-round comfort.
Large 8 Sq. Inch Display – Blue backlit LCD screen for easy readability in any lighting conditions.
Intuitive Programming Icons – Wake, leave, return, and sleep icons simplify scheduling.
Glow-in-the-Dark Light Button – Easily adjust settings at night.
Programmable Fan Control – Customize fan settings for optimal airflow and energy efficiency.
Room Temperature Calibration Adjustment – Fine-tune temperature accuracy for precise comfort.
Heating & Cooling Cycle Rate Adjustments – Set separate cycle rates for heating and cooling, including 2nd-stage adjustments.
Keypad Lockout & Setpoint Limits – Prevent unauthorized temperature adjustments.
5-Minute Compressor Delay Protection – Protects your HVAC system from short cycling (selectable on/off).
Filter Change Indicator – Set reminders for air filter changes (selectable on/off).
Easy Installation – Features color-coded terminal blocks, a universal sub-base, and wall/junction box mounting for quick setup.
Electric or Gas Configurable – Compatible with both electric and gas heating systems.
Battery or Hardwire Power – Operates on batteries or a 24V power source.
5-Year Warranty – Backed by a 5-year manufacturer warranty for peace of mind.

Specifications:

  • Brand: PRO-1
  • Model: T855SH
  • System Compatibility: Universal (Residential & Light Commercial)
  • Heat/Cool Stages: 5 Heat / 3 Cool (Heat Pump), 2 Heat / 2 Cool (Conventional)
  • Thermostat Type: Programmable (7-Day, 5/1/1) or Non-Programmable
  • Power Options: Battery or Hardwire (24V)
  • Display: 8 sq. inch blue backlight
  • Mounting: Wall or Junction Box
  • Thermostat Mobility: Stationary
  • Warranty: 5 Years

Why Choose the PRO-1 T855SH?

The PRO-1 T855SH Universal Thermostat is ideal for homeowners, property managers, and businesses looking for a high-quality, feature-rich thermostat that offers maximum control over heating and cooling systems. Whether you're using a high-stage heat pump or a conventional system, this thermostat delivers energy efficiency, ease of use, and advanced programming options.

Need Help? Contact Us!

If you have any questions about the PRO-1 T855SH Universal Programmable Thermostat, please call us to speak with a customer service representative. They will be happy to help!

As always, purchase your MRCOOL parts and equipment from the USA’s most trusted MRCOOL dealer, MRCOOL DIY Direct.

Product Information

Shipping & Returns

Description

PRO-1 T855SH Universal Programmable Thermostat – Residential & Light Commercial HVAC Control

Take complete control of your HVAC system with the PRO-1 T855SH Universal Programmable Thermostat. Designed for both residential and light commercial applications, this thermostat supports up to 5 Heat / 3 Cool stages for heat pumps and 2 Heat / 2 Cool for conventional systems, making it one of the most versatile options available. Featuring auto changeover, an intuitive programming menu, and a large 8 sq. inch backlit display, the T855SH offers convenience, flexibility, and precision temperature control.

Key Features & Benefits:

Universal Compatibility – Works with heat pumps (5H/3C) and conventional HVAC systems (2H/2C).
Programmable or Non-Programmable Modes – Choose 7-day, 5/1/1, or non-programmable settings based on your needs.
Auto Changeover – Automatically switches between heating and cooling for year-round comfort.
Large 8 Sq. Inch Display – Blue backlit LCD screen for easy readability in any lighting conditions.
Intuitive Programming Icons – Wake, leave, return, and sleep icons simplify scheduling.
Glow-in-the-Dark Light Button – Easily adjust settings at night.
Programmable Fan Control – Customize fan settings for optimal airflow and energy efficiency.
Room Temperature Calibration Adjustment – Fine-tune temperature accuracy for precise comfort.
Heating & Cooling Cycle Rate Adjustments – Set separate cycle rates for heating and cooling, including 2nd-stage adjustments.
Keypad Lockout & Setpoint Limits – Prevent unauthorized temperature adjustments.
5-Minute Compressor Delay Protection – Protects your HVAC system from short cycling (selectable on/off).
Filter Change Indicator – Set reminders for air filter changes (selectable on/off).
Easy Installation – Features color-coded terminal blocks, a universal sub-base, and wall/junction box mounting for quick setup.
Electric or Gas Configurable – Compatible with both electric and gas heating systems.
Battery or Hardwire Power – Operates on batteries or a 24V power source.
5-Year Warranty – Backed by a 5-year manufacturer warranty for peace of mind.

Specifications:

  • Brand: PRO-1
  • Model: T855SH
  • System Compatibility: Universal (Residential & Light Commercial)
  • Heat/Cool Stages: 5 Heat / 3 Cool (Heat Pump), 2 Heat / 2 Cool (Conventional)
  • Thermostat Type: Programmable (7-Day, 5/1/1) or Non-Programmable
  • Power Options: Battery or Hardwire (24V)
  • Display: 8 sq. inch blue backlight
  • Mounting: Wall or Junction Box
  • Thermostat Mobility: Stationary
  • Warranty: 5 Years

Why Choose the PRO-1 T855SH?

The PRO-1 T855SH Universal Thermostat is ideal for homeowners, property managers, and businesses looking for a high-quality, feature-rich thermostat that offers maximum control over heating and cooling systems. Whether you're using a high-stage heat pump or a conventional system, this thermostat delivers energy efficiency, ease of use, and advanced programming options.

Need Help? Contact Us!

If you have any questions about the PRO-1 T855SH Universal Programmable Thermostat, please call us to speak with a customer service representative. They will be happy to help!

As always, purchase your MRCOOL parts and equipment from the USA’s most trusted MRCOOL dealer, MRCOOL DIY Direct.

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