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Carrier Totaline P374-2800 User Manual

Carrier Totaline P374-2800
88 pages
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COMMERCIALCOMMERCIAL
THERMOSTATTHERMOSTAT
P/NP/N
P374-P374-28002800
TOTALINE
Signature
HEAT
COOL
HEAT
PUMP
HEAT
COOL
HEAT
PUMP
7-DAY
Commercial Systems & Services Carrier Corporation 08/05
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
PROGRAMMABLE
OPTIONAL
HUMIDITY MODULE
OPTIONAL
HUMIDITY MODULE
Accepts the
Accepts the
DIGITAL
THERMOSTAT
3 Configurable Outputs
Control up to 2 Cool &
3 Heat Stages
Adjustable 2nd & 3rd Stage
Timer & Deadbands
Backlit Display & Button
Legends
Aux Heat Indicator
Set Point Limiting
3 Configurable Outputs
Control up to 2 Cool &
3 Heat Stages
Outdoor Sensor Ready with
High/Low Readouts for the Day
Accepts EZ Programmer
Accepts Optional Humidity Module:
Controls Humidification and
Dehumidification
Accepts Optional IR Remote Control
Optional Internet / Phone Control
Accessory
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Carrier Totaline P374-2800 Specifications

General IconGeneral
Stages1 Heat/1 Cool
Voltage24V
DisplayLCD
BacklightYes
Temperature Range45°F to 90°F (7°C to 32°C)
Hold FeatureYes
Filter Change AlertYes
System SwitchHeat/Cool/Off
Fan ControlAuto/On
Power SourceBattery
Battery2 AA Batteries
ProgrammableNo

Summary

Quick Start Guide

Setting the Clock and Day

Instructions on how to set the current time and day on the thermostat.

Selecting Heat or Cool Mode

Guide to choosing between heating, cooling, auto, or program modes.

Adjusting Temperature Setpoints

How to set desired heating and cooling temperatures using up/down buttons.

Fan Operation Control

Explanation of how to manually control the fan or set it to automatic.

Understanding Your Thermostat

Front Panel Button Functions

Overview of the buttons on the thermostat's front panel and their labels.

Thermostat Display Features

Detailed explanation of the icons, indicators, and information shown on the thermostat display.

Setting Clock and Day

Setting the Thermostat Clock

Step-by-step instructions for setting the current time on the thermostat.

Setting the Thermostat Day

Instructions for selecting the current day of the week on the thermostat.

Basic Thermostat Operation

Programming Auto or Program Modes

How to configure the thermostat for programmable or non-programmable operation.

Selecting Operating Modes

Guide to manually selecting Heat, Cool, Auto, or Program On modes.

Adjusting Temperature Setpoints

Detailed steps for adjusting heat and cool setpoints in Auto/Program or Heat/Cool modes.

Temperature and Humidity Sensors

Viewing Outside Temperature Readings

How to access and view current, high, and low outside temperatures.

Viewing Indoor Humidity Levels

Instructions to display current indoor humidity and humidification setpoint.

Programming Daily Schedules

Creating a Daily Schedule

Step-by-step guide to setting occupied and unoccupied periods and temperatures.

Overriding the Daily Schedule

How to temporarily interrupt the programmed schedule for comfort adjustments.

Fan Operation Settings

Using the Fan Button

Explanation of how to activate continuous fan operation or automatic fan mode.

Setting Fan-Off Delay

How to program a delay for the fan to continue running after cooling is satisfied.

Thermostat Display Customization

Backlight On/Off Control

How to adjust the display backlight for different operating modes.

Temperature Units (Fahrenheit/Celsius)

Setting the thermostat display to show temperature in Fahrenheit or Celsius.

Keypad Locking and Unlocking

How to prevent unauthorized access by locking or unlocking the thermostat keypad.

Programming Security Levels

Setting security levels to limit temperature adjustments and program modes.

Humidification System Setup

Installing the Humidity Module

Instructions for physically installing the optional humidity module.

Humidity Jumper Configuration

Setting the thermostat jumper for humidity operation.

Adjusting Humidification Setpoint

How to set the desired humidity level for the system to maintain.

Dehumidification System Setup

Dehumidification Jumper Configuration

Setting the thermostat jumper for dehumidification operation.

Adjusting Dehumidification Setpoint

How to set the desired dehumidification level for the system to maintain.

Using Air Conditioner for Dehumidification

How to enable and configure the AC to assist with dehumidification.

DEHUM Terminal Operation

Understanding the DEHUM terminal's function for dehumidification.

Equipment Run-Time Monitoring

Viewing Override Operation Run-Time

Tracking how long the thermostat has been in override mode.

Viewing Humidifier Run-Time

Monitoring the operating hours of the humidification system.

Viewing UV Light Run-Time

Tracking the operating hours of the UV light system.

Heat Pump and Electric Heat Operation

Heat Pump and Reversing Valve Jumper Settings

Configuring jumpers for heat pump and reversing valve operation.

Electric Heat Jumper Setting

Configuring the jumper for electric heat operation.

Using Emergency Heat Mode

How to activate and use the emergency heat feature.

Timers and Deadbands Configuration

Adjusting Heat/Cool Differential

Setting the minimum temperature difference between heating and cooling setpoints.

Adjusting Cycles Per Hour Limit

Limiting the number of times the HVAC system can cycle per hour.

Adjusting Stage Deadbands

Setting deadbands for 1st, 2nd, and 3rd stage heating/cooling activation.

Setting Run-Time Between Stages

Configuring the minimum run-time required before engaging the next stage.

Selecting 2nd Stage Turn Off Temperature

Determining when the second stage of heating or cooling will turn off.

Energy Save Feature

Enabling Energy Save Mode

How to activate the Energy Save feature for optimized energy usage.

Run-Time Alarm Configuration

Service Filter (Fan Run-Time) Alarm

Setting and resetting the alarm for fan run-time and filter replacement.

UV Light Run-Time Alarm

Setting and resetting the alarm for UV light operating hours.

Humidifier Run-Time Alarm

Setting and resetting the alarm for humidifier operating hours.

Holiday Mode Programming

Setting Holiday Mode Duration

How to program the number of days the holiday schedule will be enforced.

Configuring MISC Outputs

Jumper Configuration for MISC Outputs

How to set jumpers for various functions like humidification, dehumidification, etc.

Explanation of Jumper Settings

Detailed explanation of what each jumper setting controls.

Thermostat Defaults and Calibration

Resetting to Factory Default Settings

How to restore the thermostat to its original factory settings.

Calibrating Temperature and Humidity Sensors

Procedure for adjusting sensor calibration (requires HVAC technician).

Available Accessories

Accessory Port and Options

Information on the RJ11 port and optional accessories like IR receivers and EZ Programmers.

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