TOTALINE P374-1900 User Manual

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RESIDENTIALRESIDENTIAL
THERMOSTATTHERMOSTAT
P/N P/N
P374- P374- 19001900
TOTALINE
Signature
HEAT
COOL
HEAT
PUMP
DUAL
FUEL CAPABLE
HEAT
COOL
HEAT
PUMP
DUAL
FUEL CAPABLE
7-DAY
PROGRAMMABLE
DIGITAL
THERMOSTAT
HUMIDITY
CONTROL
Equipped with Humidity Module
Programmable Output
Accepts EZ Programmer
Accepts Optional IR Remote Control
Optional Internet / Phone Control
Accessory
Outdoor Sensor Ready
with High/Low Readouts
for the Day
with
Replacement Components Division Carrier Corporation 02/06
Meets Residential California Title 24
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
OWNER’S
MANUAL
OWNER’S
MANUAL
3 Configurable Outputs
Control up to 3 Heat &
2 Cool Stages
Adjustable 2nd & 3rd Stage
Timers & Deadbands
Backlit Display & Button
Legends
Aux Heat Indicator
Dry Contact Equipped
3 Configurable Outputs
Control up to 3 Heat &
2 Cool Stages

TOTALINE P374-1900 Specifications

General

Stages	1 Heat/1 Cool
Voltage	24 VAC
Display	Digital
Backlight	Yes
Temperature Range	45°F to 90°F (7°C to 32°C)
Programmable	Yes
Hold Feature	Yes
Filter Change Alert	Yes
Programmability	7-Day

Summary

SECTION 1 Getting to Know Your Thermostat

Front Panel Buttons

Identifies and explains the function of each button on the thermostat's front panel.

Display Features

Details the various icons, indicators, and readouts on the thermostat display for status information.

SECTION 2 Quick Start

Setting the Clock and Day

Guides users through the initial setup of the thermostat's current time and day settings.

Selecting the Heat or Cool Mode

Explains how to choose between heating, cooling, auto, or off modes for system operation.

SECTION 4 Basic Operation

Programmable or Non-Programmable Thermostat

Describes how to configure the thermostat for either programmable or basic non-programmable functionality.

Selecting the Operating Mode

Details how to select modes like Heating Only, Cooling Only, Auto, or Off based on configuration.

SECTION 6 Programming the Daily Schedule

Programming a Daily Schedule

Provides step-by-step instructions for setting time periods and temperature setpoints for each day.

SECTION 14 Timers and Deadbands

Adjusting the Heat/Cool Differential

Explains how to set the minimum temperature difference between heat and cool setpoints for auto-changeover.

Adjusting the Deadband

Details how to set the temperature range that prevents rapid cycling of heating or cooling stages.

SECTION 22 Factory Defaults, Calibration, and Sensors

Resetting the Thermostat to the Factory Default Settings

Instructions to restore the thermostat to its original factory settings, erasing current configurations.

Calibrating the Temperature and Humidity Sensors

Outlines the procedure for adjusting sensor readings if calibration is necessary.