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Gree TT-N-421

TT-N-421 PTAC Non-Programmable Heat pump Thermostat with backlighting, F /C Switch, 2-Stage Heat/1-Stage Cool Write a review

TT-N-421 PTAC Non-Programmable Heat pump Thermostat with backlighting, F /C Switch, 2-Stage Heat/1-Stage Cool


Items that are currently in-transit to our warehouse, are currently in-stock at a drop-ship vendor’s, or manufacturer's warehouse will be marked as "Available". These products will ship once your order is processed (usually within 24-48 business hours). For any exceptions to this timeframe, an ETA (Estimated Time of Arrival) for your order will be emailed with accurate shipping dates in order to ensure that you are always updated and informed as to when your order will arrive at its final destination.

Quick Specs: View More

  • Width: 3.81"
  • Height: 1.56"

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This low-voltage, easy-to-use non-programmable Heat pump thermostat provides maximum guest comfort. Available at AppliancesConnection


  • Dual Powered – Hardwired or Battery
  • Large Display with Bright Blue Backlight
  • Adjustable Temperature Set Point Limits
  • Non-Volatile Memory Retains User Settings
  • Easy Access Front Battery Door
  • Separate O & B Terminals
  • Compressor Short Cycle Protection
  • Adjustable 1st and 2nd Stage Temperature Differential
  • Auxiliary Heat Indicator
  • ESD Guard™ Electronic Circuitry
  • Front Access Reset Button
  • F°/C° Switch
  • Mount to Horizontal Box
  • Separate Heating and Cooling Set Point Temperatures



Programmable  No
Wireless  No
Display Yes
Power Method Battery, Hardwire
Mounting Horizontal
Temperature Range 45°F to 90°F
Stages Cool 1
Stages Heat 2
Fan Switching Yes
System Switching Yes
Length 5.63" 
Width 3.81" 
Height 1.56"


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  • Brand:Gree
  • SKU:TT-N-421
  • Stock Id:657850
  • Product Number:TT-N-421


  • Width:3.81"
  • Height:1.56"

    Technical Details

  • Length:5.63"
  • Mounting:Horizontal
  • Display:Yes
  • Temperature Range:45 F to 90 F
  • Wireless:No
  • Programmable:No
  • Power Method:Battery, Hardwire
  • Stages Cool:1
  • Stages Heat:2
  • Fan Switching:Yes
  • System Switching:Yes
  • Weight:2.00 lbs