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Carrier A07051 User Manual

Carrier A07051
40 pages
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T C --- P A C , T C --- N A C
T C --- P H P, T C --- N H P
Comfort™ Series
AC / HP Thermostat
Installation Instructions
A07051 A07050
Comfort Series Comfort Series
Program m able Th erm os t at Non--Pr ogramm ab le Therm ost at
Designed and Assembled in the U.S.A.
NOTE: Read the entire instruction manual before starting the installation.
US patents: US20060165149 A1, USD582803 SI, USD582802 SI
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Carrier A07051 Specifications

General IconGeneral
Operating Temperature32°F to 122°F (0°C to 50°C)
ConnectivityWi-Fi
Power Source24 VAC
Remote AccessYes, via mobile app
Voice ControlAmazon Alexa, Google Assistant

Summary

Installation Considerations

Models

Details the four models in the Comfort Series: programmable/non-programmable, AC/HP.

Power

Explains dual power sources (batteries, 24VAC) and wiring requirements for Comfort Series thermostats.

Installation

Step 1 Thermostat Location

Provides guidelines for selecting the optimal location for thermostat mounting.

Step 2 Install Thermostat

Covers the physical installation process, including wiring and mounting the thermostat base.

Step 3 Set Thermostat Configuration

Guides the installer through setting configuration options for proper thermostat operation.

Step 4 Check Thermostat Operation

Details how to use the built-in installer test to verify thermostat and equipment functionality.

Features and Accessories

Home, Away, Sleep

Describes the Home, Away, Sleep feature for programmable models, allowing preset temperature setpoints.

Clock

Explains clock operation and battery backup for programmable thermostat models.

Batteries

Details battery operation, installation, and power source changeover for the thermostat.

Display Lighting

Explains the two levels of display lighting and their availability based on power source.

Door Switch

Describes how the door switch affects display behavior and user functions.

Mounting Options

Details mounting hole configurations for junction boxes on programmable and non-programmable models.

Operational and Connection Information

Rc/Rh Connections

Explains Rc/Rh terminal connections for separate 24VAC transformers for heating and cooling.

Wiring

Provides guidelines for wire gauge and length for thermostat wiring applications.

O/B Terminal

Details the O/B terminal function for heat pump reversing valves and configuration options.

Timers

Explains various operational timers like compressor timeguard, minimum on, and cycle timers.

Error Codes

Describes error codes indicating thermostat sensor or memory failures and their remedies.

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