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Overview

This thermostat features a 2-wire user console connection—ideal for retrofits. The TH146-P-U includes a programmable console, a control module, and an outdoor temperature sensor.

Features

  • Installer mode bypasses compressor lockout delay for quicker installations
  • Removable connector strip simplifies wiring
  • Control module for equipment connections can be installed near furnace/air handler. Only 2 wires required for console connection
  • Automatic Changeover between heating and cooling
  • Backlit console display shows indoor and outdoor temperatures, plus indoor humidity level
  • Complete defrost sequence protection (requires AC146-410 air duct temperature sensor)
  • Keypad lock for console prevents tampering
  • Dehumidifier/air exchanger output with automatic minimum air exchange time.

Product Specifications

Application
Heat/Cool or Heat Pump with Auxiliary Heat
Dimensions (in.)
Control Module: 3.8 in. X 5.4 in. X 1.2 in.; User console : 3.1 in. X 3.1 in. X 1 in.
Dimensions (mm)
User Console : 79 mm X 79 mm X 24 mm; Control Module: 95 mm X 137 mm X 30 mm
Includes
CT280-2H1C control module; TH146-P console; AC144-03 Outdoor Temperature; Sensor (10 ft/3 m) w/Mounting clip
Comments
Air exchange function; Removable control strips to simplify wiring; Dual-Energy Input; Backlit display; Remote input for telephone controller
Item Type
Product
Mounting
Vertical
Stages
Up to 4 Heat/2 Cool Heat Pump; Up to 3 Heat/3 Cool Conventional
Operating Humidity Range (% RH)
0% to 95%, non-condensing
Supply Voltage
24 Vac
Switch Positions (System)
HEAT-OFF-COOL-AUTO-EM.HEAT
Switch Positions (Fan)
AUTO-ON
Operating Temperature Range (F)
32 F to 122 F
Operating Temperature Range (C)
0 C to 50 C
Power Method
Hardwired
Sensor Element
Thermistor
Differential Temperature (F)
± 1 F
Differential Temperature (C)
±0.5 C
Color
White
Switch Type
Relay
Programmability
7 Day program
Terminal Designations
R, C, Y1, Y2, Y3, W1, W2, W3, G, (O/B), L
Changeover
Auto or Manual Selectable
Setting Temperature Range (F)
40 F to 86 F heating; 59 F to 104 F cooling
Setting Temperature Range (C)
15 C to 40 C cooling; 5 C to 30 C heating
Humidification Setting Range
5% to 60%
Dehumidification Setting Range
5% to 60%
Cool Current
1.0 A
Heat Current
1.0 A
Fan Current
1.0 A
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