C0SNAJ03FF1L, ComfortSense 8500 Commercial Programable Thermostat

Cat # : 14X55 |Model/Part # : C0SNAJ03FF1L

    • This part has been replaced by Cat#  

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The ComfortSense® 8500 thermostat series is the latest addition to the Lennox Commercial thermostat line. This new line of thermostats is designed to operate with Lennox premium equipment featuring the Prodigy® Control System. The first Lennox thermostats offering up to four stages of heating and cooling as well as full variable speed operation, fault detection and diagnostics, and four wire installation, ComfortSense® 8500 offers a flexible, advanced solution for commercial applications.

Enhanced Comfort and Energy Savings

  • Designed for and integrates with the Prodigy Control System
  • 7-day programming, Holiday scheduling, and one-touch “Away Mode” provide added flexibility for commercial operations
  • Automatic changeover between heating and cooling modes
  • Up to 4 stages of heating and cooling as we as full variable speed operation*
  • Scheduled occupancy for ventilation control
  • Afterhours override from the touchscreen or with an optional occupancy sensor

Simplified Installation and Service

  • Reduced installation time with only four wires for most applications
  • Equipment fault detection and diagnostics to help with troubleshooting and service
  • Built in temperature and humidity sensors

Intuitive Interface with customizable operation

  • Full color LCD touchscreen interface with simple navigation
  • Ability to select information shown on the screen and limit setpoint adjustment
  • Performance reports count heating and cooling hours

*When bundled with Energence Ultra-High-Efficiency 3 – 6 ton units

Brand Lennox
Catalog Number 14X55
Model/Part Number C0SNAJ03FF1L
Minimum Order Quantity 0.0
Base Unit of Measure Unit(S)
EAN / UPC 66255152886
Equipment Compatibility Energence, Strategos
User Interface Full-Color LCD Touchscreen
Programming 5-2 or 7-Day Up to 4 Time Periods Per Day
Installation 4 Wires for Most Applications
Heating/Cooling Stages Up to 4H/4C
Remote Sensing Single and Averaging Indoor Plus Single Outdoor
Product Depth 0.88 in.
Product Height 3.31 in.
Product Width 4.31 in.
Type Universal
Gross Weight 0.6 LB
Family ComfortSense
Hertz 50/60 hz
Changeover Auto
Humidification Control Yes
Lennox Brand Comparison 14X55
Program Type 7 Day
Communicates with Lennox Yes
Stages Quantity 4 Heat/4 Cool
Intelligent Recovery Yes
WiFi Remote Access No

New Catalog #'s

14X55 was replaced by

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