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CTC 73257P Digital 5/2, 7 Day Programmable HP Thermostat 3H/2C 3 Heat 2 Cool

  • 73257P

This item is in stock.

TST71 506-E1

Product Description


CTC 73257P Digital 5/2, 7 Day Programmable HP Thermostat 3H/2C 3 Heat 2 Cool

This is a Brand New CTC Digital 5/2, 7 Day Programmable Thermostat.  It is the CTC 73257P model which is 3 Heat and 2 Cool, designed to work with Air Conditioning and Gas/Electric Heat/Heat Pumps w/back-up electric heat.  Thanks for looking and good luck!

  • Temporary Override Limits
  • Auxiliary Heat Fossil Fuel Option
  • Programmable Fan with On or Auto Modes
  • English / Spanish Packaging and Instruction Card
  • Residential or Commercial Mode
  • Multi-Level Keypad Lockout
  • Hardwire or Battery Powered
  • Separate User and Installer Reset Buttons
  • Indoor or Outdoor Remote Sensing
  • Adjustable Temperature Limits
  • Auto or Manual Changeover
  • 4 Square Inch Display with Bright Blue Backlight
Terminations: G, Rc, Rh, W2, O/B/V3, Y1, Y2, W1/E/W3, C, L, S1, S2
Operating Humidity: 5% to 95% Relative Humidity
Storage Temperature: 14°F to 140°F (-10°C to 60°C)
Accuracy: ± 1°F (± .5°C)
Display Range: 40°F to 99°F (5°C to 37°C)
Control Range: 45°F to 90°F (7°C to 32°C)
DC Power: 3.0 Volts DC (2 AA Alkaline Batteries Included)
AC Power: 18-30 Volt AC
Electric Rating: 24 Volt AC (18-30 Volt AC) 1 Amp Maximum Load per Terminal, 5 Amp Total Maximum Load (All Terminals)
Dimensions: 3.86" x 5.11" x 1.42"
Up to 3 Heat / 2 Cool Heat Pump Systems
Up to 2 Heat / 2 Cool Conventional Systems
24 VAC Gas, Oil or Electric Systems
Hot water gravity & zoned
Hot Water Motor Valves (3-wire)
Hot water solenoid valves (2-wire)
Air / Ground / Hydronic Exchanger



A thermostat senses the air temperature in a room and has the ability to turn on the furnace or air conditioner based upon that temperature. Modern thermostats are usually digital, often programmable, and occasionally WI-Fi capable.

Replaces Old Part #s:

Repair Difficulty Level: difficulty graph


Partial List of Units that Use This Item:

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SKU: TST71 506-E1
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