Carrier Totaline P374-2800 Owner's Manual

7-day programmable

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OWNER'S

MANUAL

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

Accepts the

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage

Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

Commercial Systems & Services

HEAT

COOL

PROGRAMMABLE

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

OPTIONAL

HUMIDITY MODULE

TOTALINE

Signature

COMMERCIAL

THERMOSTAT

P/N P/N P374-

P374-2800

HEAT

PUMP

7-DAY

DIGITAL

THERMOSTAT

Carrier Corporation 08/05

2800

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Chapters

Table of Contents

Summary of Contents for Carrier Totaline P374-2800

Page 1 Accepts the HUMIDITY MODULE HUMIDITY MODULE Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. TOTALINE Signature Commercial Systems & Services Carrier Corporation 08/05...
Page 2 TOTALINE CAUTION Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. CAUTION NEVER PUT MORE THAN ONE JUMPER ON THE SAME MISC JUMPER BLOCK! THIS MAY DAMAGE YOUR THERMOSTAT AND VOID MISC3 MISC3...
Page 3 How to Use This Manual How to Use This Manual TOTALINE The Table of Contents divides the thermostat features into sections making it easier to quickly find information. The first page of each section contains a more detailed Contents of each section, such as the example page shown below.
Page 4 Glossary of Terms Glossary of Terms TOTALINE Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. Configurable Output Jumper: Using jumpers on the thermostat you can configure the MISC1, MISC2, and MISC3 terminals to operate with regards to humidification, dehumidification, 2nd stage cooling, and 3rd stage heating.
Page 5: Table Of Contents
Table of Contents Table of Contents TOTALINE Quick Start Getting to Know Your Thermostat Setting Clock and Day Basic Operation Viewing Temperature and Humidity Sensors Programming the Daily Schedule Programming the Fan Operation Thermostat Display Options Humidification Dehumidification Viewing Equipment Run-Times Electric Heat and Heat Pump Operation...
Page 6: Quick Start
SECTION 1 Quick Start Quick Start TOTALINE Section 1 Contents: Setting the Clock and Day...1.2 Selecting the Heat or Cool Mode..........1.3 Selecting Your Desired Temperature........1.4 Using the Fan Button....1.4 Note: Following the instructions in this section will allow you to operate your thermostat using the factory default settings.
Page 7 TOTALINE MODE HUMIDITY SET CLOCK During Setup & Programming: Press the MODE and HUMIDITY buttons Pressing the UP or DOWN at the same time buttons will modify the flashing selection. Setting the Clock Setting the Clock I2:00 Setup To adjust the Clock or Day use Press Setting the Day...
Page 8 TOTALINE Selecting the Heat or Cool Mode Selecting the Heat or Cool Mode Select Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the temperature the room has to reach before the furnace will Press turn on to heat the room. MODE I2:00 Cooling Only...
Page 9 TOTALINE Selecting Your Desired Temperature Selecting Your Desired Temperature (adjusting the setpoints) (adjusting the setpoints) AUTO OR PROGRAM MODE Pressing the UP or DOWN buttons in Auto or Program mode will adjust both the heat and cool set temperatures simultaneously. Adjust the desired I2:00 set temperature with the...
Page 10: Getting To Know Your Thermostat
SECTION 2 Getting to Know Your Thermostat Getting to Know Your Thermostat TOTALINE Section 2 Contents: Front Panel Buttons.....2.2 Display Features......2.3 Page 2.1...
Page 11 TOTALINE Front Panel Front Panel Warmer Button Backlit LCD Display (glows red) sometimes referred to as the UP button I2:00 AUTO TOTALINE Cooler Button sometimes refer- (glows blue) red to as the DOWN button Override Heat or Cool Demand Indicator Button Red = Heat, Green = Cool Commercial...
Page 12 TOTALINE Display Features Display Features I8:88 Setup Program On StartStop SuMoTuWeThFrSa DeHumidify Service Filter UV Light Outside AUTO OFFON Unoccupied Override FanOn Mode Indicators - Section 4 Selects the operational mode of the equipment. HEAT - Indicates the heating mode. COOL - Indicates the air conditioning mode.
Page 13 TOTALINE Display Features Display Features I8:88 Setup Program On StartStop SuMoTuWeThFrSa DeHumidify Service Filter UV Light Outside AUTO OFFON Unoccupied Override FanOn Occupied & Unoccupied icons - Section 6 Indicates the program number: Occupied 1,2,3,or Unoccupied. Override icon - Section 6 Indicates the program is currently being overridden for up to 4 hours.
Page 14 TOTALINE Display Features Display Features I8:88 Setup Program On StartStop SuMoTuWeThFrSa DeHumidify Service Filter UV Light Outside AUTO Remote OFFON Unoccupied Override FanOn UV Light icon - Section 11/15 Appears when the UV bulb should be serviced under normal conditions. Adjustable from 0 - 1950 days of operation. Remote icon - Section 5 Indicates the remote sensor reading of the thermostat is being...
Page 15: Setting Clock And Day
SECTION 3 Setting the Clock and Day Setting the Clock and Day TOTALINE Section 3 Contents: Setting the Clock......3.2 Setting the Day......3.2 Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection. Page 3.1...
Page 16 TOTALINE MODE HUMIDITY SET CLOCK During Setup & Programming: Press the MODE and Pressing the UP or DOWN HUMIDITY buttons at the same time buttons will modify the flashing selection. Setting the Clock Setting the Clock I2:00 Setup To adjust the Clock or Day use Press Setting the Day...
Page 17: Basic Operation
SECTION 4 Basic Operation Basic Operation TOTALINE Section 4 Contents: Programming for Auto or Program Operation....4.2 Selecting the Proper Operating Mode......4.3 Selecting Your Desired Temperature.......4.8 Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection. Page 4.1...
Page 18 TOTALINE Programmable or Non-Programmable Programmable or Non-Programmable Thermostat Thermostat When the very simplest operation is desired, this thermostat may be configured to be non-programmable, with or without Auto-Changeover. Follow the step below. If ‘NO’ is selected, the thermostat will lockout the Program On screen; only the Off, Heat, Cool, and Auto screens may be accessed by pressing the MODE button.
Page 19 TOTALINE Manual or Auto-Changeover Manual or Auto-Changeover Thermostat Thermostat When the very simplest operation is desired, this thermostat may be configured to be a manual heat and cool thermostat, with or without time period programmability. Follow the step below. The thermostat may be programmed to function as a Heat Only or Cool Only thermostat by selecting ‘NO’...
Page 20 TOTALINE Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: NON-PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with Manual-Changeover, the following screens will be available by pressing the MODE button.
Page 21 TOTALINE Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: NON-PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with Auto-Changeover, the following screens will be available by pressing the MODE button Select the Mode by Pressing the MODE Button I2:00...
Page 22 TOTALINE Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat is configured to be a programmable thermostat with Manual-Changeover, the following screens will be available by pressing the MODE button. Select the Mode by Pressing the MODE Button I2:00 Heating Only...
Page 23 TOTALINE Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat is configured to be a programmable thermostat with Auto-Changeover, the following screens will be available by pressing the MODE button. Select the Mode by Pressing the MODE Button I2:00 Heating Only...
Page 24 TOTALINE Selecting Your Desired Temperature Selecting Your Desired Temperature (adjusting setpoints) (adjusting setpoints) AUTO OR PROGRAM MODE Pressing the UP or DOWN buttons in Auto or Program modes will adjust both the heat and cool set temperatures simultaneously. For more information on this see page 13.2. Adjust the desired I2:00 set temperature with the...
Page 25: Viewing Temperature And Humidity Sensors
SECTION 5 Viewing the Temperature and Humidity Sensors Viewing the Temperature and Humidity Sensors TOTALINE Section 5 Contents: Viewing the Outside Temperature......5.2 Viewing the Indoor Humidity........5.3 Page 5.1...
Page 26 TOTALINE Viewing the Outside Temperature Viewing the Outside Temperature Requires an outside sensor (optional accessory) to be installed. To read the temperature from the Outside Sensor, press the PROGRAM and HOLIDAY buttons. The display will then show the current outside temperature along with the High and Low temperatures for the day.
Page 27 TOTALINE Viewing the Indoor Humidity Viewing the Indoor Humidity Requires the Humidity Module (optional accessory) to be installed. To display the current humidity at the thermostat, press the HUMIDITY button of the thermostat. The display will then show the current indoor humidity along with the humidification setpoint (Section 9).
Page 28: Programming The Daily Schedule
SECTION 6 Programming the Daily Schedule Programming the Daily Schedule TOTALINE Section 6 Contents: Programming a Daily Schedule........6.2 Overriding the Daily Schedule........6.6 Page 6.1...
Page 29 TOTALINE Programming a Daily Schedule Programming a Daily Schedule Press Press the PROGRAM button to enter time period programming. PROGRAM Use the Programming Worksheet on the back cover to help with this section. Select the maximum # of occupied periods to be used on any one day.
Page 30 TOTALINE Adjust the heating set- point for Unoccupied periods. Unoccupied (OF, 35 - 99 ) Press MODE Select the day for Occupied 1. occupied (Mo - Su) Press MODE 7:00 Start Adjust the start time for Occupied 1. occupied Press MODE 6:00 Stop...
Page 31 TOTALINE The copy command becomes available after the maximum # of occupied periods are programmed in a day. This example uses only one occupied period. Select Yes to copy the previous day’s program to this day. If No is selected: If Yes is selected: Selecting Yes, then pressing mode will copy the previous day’s program.
Page 32 TOTALINE Select Occupied 1 to run on this day (On), or not to run on this day (Off). occupied Select Yes to copy the previous day’s program to this day. If No is selected: If Yes is selected: Selecting Yes, then pressing mode will copy the Press previous day’s program.
Page 33 TOTALINE Overriding the Daily Schedule Overriding the Daily Schedule The OVERRIDE button may be used to interrupt the normal time schedule programming of the thermostat. Override may only be used when the thermostat is running the time schedule, in Program On mode.
Page 34: Programming The Fan Operation
SECTION 7 Programming the Fan Operation Programming the Fan Operation TOTALINE Section 7 Contents: Using the Fan Button....7.2 Setting the Fan-Off Time Delay..........7.3 Page 7.1...
Page 35 TOTALINE Using the Fan Button Using the Fan Button When the fan is set for automatic operation it will energize any time there is a call for heating or cooling, otherwise the fan will remain off. Pressing the FAN button will energize the fan and display the FanOn icon on the thermostat display.
Page 36 TOTALINE Setting the Fan-Off Time Delay Setting the Fan-Off Time Delay To increase cooling efficiency of your unit, the thermostat may be programmed to continue running the fan after a call for cooling has been satisfied. This delay may be set for 30, 60, or 90 seconds. If the Fan Off Delay is set for zero seconds, the fan will not energize after a call for cooling has been satisfied.
Page 37: Thermostat Display Options
SECTION 8 Thermostat Display Options Thermostat Display Options TOTALINE Section 8 Contents: Turning On/Off the Backlight........8.2 Programming the Thermostat to Display Temperature in Fahrenheit or Celsius....8.2 Locking/Unlocking the Keypad........8.3 Programming a Security Level..........8.4 Page 8.1...
Page 38: Turning On/Off The Backlight
TOTALINE Turning On/Off the Backlight Turning On/Off the Backlight Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily button to enter Setup screens. PROGRAM to move through the setup screens. Press and hold the MODE Press the MODE button repeatedly...
Page 39: Locking/Unlocking The Keypad
TOTALINE Locking/Unlocking the Keypad Locking/Unlocking the Keypad To prevent unauthorized use of the thermostat, the front panel buttons may be disabled. To disable, or ‘lock’ the keypad, press and hold the MODE button. While holding the MODE button, press the UP and DOWN buttons together. The icon will appear on the display, then release the buttons.
Page 40: Programming A Security Level
TOTALINE Programming a Security Level Programming a Security Level When a security level has been programmed, the thermostat will allow limited adjustment to the setpoints (steps #7 and 8) and, in security levels 2 and 3, the thermostat will be forced into the Program On mode.
Page 41: Humidification
SECTION 9 Humidification Humidification TOTALINE Section 9 Contents: Installing the Humidity Module........9.2 Setting a Thermostat Jumper for Humidity Operation....9.3 Adjusting the Humidification Setpoint........9.4 NOTE: The humidification functions described in this section will only be available if a Humidity Module has been properly installed. Disclaimer: The manufacturer of this thermostat cannot be liable for misinstallation, improper connection or improper programming of...
Page 42 TOTALINE Installing the Humidity Module Installing the Humidity Module To install the Humidity Module the thermostat must be detached from the back plate. Plug the Humidity Module into the Humidity Module connector as shown in Figure 2 below. Follow the detailed instructions included with the Humidity Module accessory.
Page 43 TOTALINE Setting a Thermostat Jumper for Setting a Thermostat Jumper for Humidity Operation Humidity Operation To operate one of the MISC outputs using humidity-based operation, place the MISC1, MISC2, or MISC3 jumper on the terminal labeled HUM (see diagram below). This will supply 24VAC to the selected MISC terminal based on the humidification programming in the following pages.
Page 44 TOTALINE Adjusting the Humidification Setpoint Adjusting the Humidification Setpoint If your HVAC unit is equipped with a humidification system and the Humidity Module has been installed, the thermostat will provide power to the appropriate terminal on the backplate of the thermostat when the humidity in the home falls below the setpoint you have chosen.
Page 45: Dehumidification
SECTION 10 Dehumidification Dehumidification TOTALINE Section 10 Contents: Configuring a Thermostat Output Jumper for Dehumidification Operation........10.2 Adjusting the Dehumidification Setpoint........10.3 Using Your Air Conditioner to Dehumidify......10.4 Using the DEHUM Terminal........10.5 NOTE: The dehumidification functions described in this section will only be available if a Humidity Module has been properly installed. For instructions on installing the Humidity Module please see page 9.2.
Page 46: Operation
TOTALINE Setting a Thermostat Jumper for Setting a Thermostat Jumper for Dehumidification Operation Dehumidification Operation To operate one of the MISC outputs using dehumidification-based operation, install the Humidity Module and place the Humidity Jumper on HUM (see page 9.2). Then place the MISC1, MISC2, or MISC3 jumper on the terminal labeled DEHUM (see diagram below).
Page 47: Adjusting The Dehumidification Setpoint
TOTALINE Adjusting the Dehumidification Setpoint Adjusting the Dehumidification Setpoint If your HVAC unit is equipped with a dehumidification terminal and the Humidity Module has been installed, the thermostat will provide power to the appropriate terminal on the backplate of the thermostat when the humidity in the home is above the setpoint you have chosen.
Page 48: Using Your Air Conditioner To Dehumidify
TOTALINE Using Your Air Conditioner to Dehumidify Using Your Air Conditioner to Dehumidify If Cool to Dehumidify is on and the Humidity Module is installed, the thermostat has the ability to initiate a cooling cycle for advanced dehumidification operation. When the thermostat detects the humidity percentage is above the setpoint for dehumidification, and heating or cooling is not on, the thermostat will force the compressor to run with the fan, thus reducing moisture in the air.
Page 49: Using The Dehum Terminal
TOTALINE Using the Dehum Terminal Using the Dehum Terminal If you configure a MISC output jumper for DEHUM, it may be programmed to operate in one of two ways: 1) Normally Closed (NC): The thermostat will de-energize the DEHUM terminal to allow the fan to run in low speed when there is a call for 1st stage cooling and the room humidity is greater than the dehumidification setpoint.
Page 50: Viewing Equipment Run-Times
SECTION 11 Viewing Equipment Run-Times Viewing Equipment Run-Times TOTALINE Section 11 Contents: Viewing the Override Run-Time.........11.2 Viewing the Humidifier Run-Time........ 11.3 Viewing the UV Light Run-Time.........11.4 Page 11.1...
Page 51 TOTALINE Viewing the Override Operation Run-Time Viewing the Override Operation Run-Time This display will track the number of hours that your thermostat has been operating in the Override mode (see page 6.6). Press the FAN button to reset the counter. Press the MODE button.
Page 52 TOTALINE Viewing the Humidification Run-Time Viewing the Humidification Run-Time After your humidification system has been operating for the number of days set in step #13 below, the Service Humidify icon will appear. This counter keeps track of the number of days since the Service Humidify icon was reset.
Page 53 TOTALINE Viewing the UV Light Run-Time Viewing the UV Light Run-Time After the UV light has been operating for the number of days set in step #14 below, the Service UV Light icon will appear. This counter keeps track of the number of days since the UV light icon was last reset.
Page 54: Electric Heat And Heat Pump Operation
SECTION 12 Electric Heat and Heat Pump Operation Electric Heat and Heat Pump Operation TOTALINE Section 12 Contents: Viewing the Heat Pump and Reversing Valve Jumper Setting........12.2 Viewing the Electric Heat Jumper Setting.......12.3 Using Emergency Heat....12.4 Page 12.1...
Page 55 TOTALINE Viewing the Heat Pump and Viewing the Heat Pump and Reversing Valve Jumper Settings Reversing Valve Jumper Settings Steps 15 and 16 are ‘Read Only’ and may only be set with the jumpers on the circuit board of the thermostat. Press the MODE button.
Page 56 TOTALINE Viewing the Electric Heat Jumper Setting Viewing the Electric Heat Jumper Setting Placing the jumper on ELEC will cause the thermostat to turn on the fan immediately any time there is a heat demand. Since most gas furnaces control the fan, this feature should be off unless the heater is only electric.
Page 57 TOTALINE Using Emergency Heat Using Emergency Heat ENTER EMERGENCY HEAT: Only available if you have a Heat Pump installed. To initiate the Emergency Heat feature, press the FAN button. While holding the FAN button press UP button. The Cool setpoint display will read ‘EH’ (emergency heat). I2:00 Press for Emergency Heat...
Page 58: Timers And Deadbands
SECTION 13 Timers and Deadbands Timers and Deadbands TOTALINE Section 13 Contents: Adjusting the Heat/Cool Differential......13.2 Adjusting the Cycles Per Hour........13.3 Adjusting the Deadband..13.4 Adjusting the Minutes of Run-Time Before the Next Stage.......13.6 Selecting 2nd Stage Turn Off Temperature.....13.7 Page 13.1...
Page 59: Adjusting The Heat/Cool Differential
TOTALINE Adjusting the Heat/Cool Differential Adjusting the Heat/Cool Differential The Heat and Cool setpoints will not be allowed to come any closer to each other than the value in this step. This minimum difference is enforced during Auto-Changeover operation. Press the MODE button. While holding MODE the MODE, press the PROGRAM Note: Press the...
Page 60: Adjusting The Cycles Per Hour
TOTALINE Adjusting the Cycles Per Hour Adjusting the Cycles Per Hour The Cycles Per Hour setting may limit the number of times per hour your HVAC unit may energize. For example, at a setting of 6 cycles per hour the HVAC unit will only be allowed to energize once every 10 minutes.
Page 61: Adjusting The Deadband
TOTALINE Adjusting the Deadband Adjusting the Deadband MULTI-STAGE OPERATION - Controls up to three Heat and two Cool stages. The 2nd Stage of heat or cool is turned on when: (A) The 1st Stage has been on for the time required (step #23, page 13.6).
Page 62 TOTALINE Adjusting the Deadband Adjusting the Deadband For more detailed information, please see the explanation on the previous page. Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily button to enter Setup screens. PROGRAM to move through the setup screens.
Page 63: Adjusting The Minutes Of Run-Time Before The Next Stage
TOTALINE Adjusting the Minutes of Run-Time Adjusting the Minutes of Run-Time Before the Next Stage Before the Next Stage For more detailed information, please see the explanation on page 13.4. Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily...
Page 64: Selecting 2Nd Stage Turn
TOTALINE Selecting Selecting nd Stage Turn nd Stage Turn Off Temperature Off Temperature If ON is selected, the second stage of cooling or heating will remain energized until the thermostat reaches the setpoint on the thermostat display. If OFF is selected, the second stage of cooling or heating will turn off after reaching the 1st stage deadband (see page 13.4 for more...
Page 65: Energy Save Operation
SECTION 14 Energy Save Operation Energy Save Operation TOTALINE How to Use the Energy Save Feature How to Use the Energy Save Feature If the thermostat is configured to be programmable (Section 4), and Energy Save has been selected in step #26 (below), the room will attempt to reach the selected comfort temperature at the exact time programmed into the thermostat.
Page 66 SECTION 15 Programming Run-Time Alarms Programming Run-Time Alarms TOTALINE Section 15 Contents: Setting and Resetting the Service Filter (Fan Run-Time) Alarm........15.2 Setting and Resetting the UV Light Run-Time Alarm.....15.3 Setting and Resetting the Humidify Run-Time Alarm..15.4 Page 15.1...
Page 67 TOTALINE How to Set and Reset the Service Filter How to Set and Reset the Service Filter (Fan Run-Time) Alarm (Fan Run-Time) Alarm This counter keeps track of the number of hours of fan run-time whether the fan is energized in the Heating or Cooling modes, or in stand alone fan operation.
Page 68 TOTALINE How to Set and Reset the UV Light How to Set and Reset the UV Light Run-Time Alarm Run-Time Alarm This counter keeps track of the number of days since the UV Light counter has been reset. The UV Light icon will appear after the number of days has been achieved, as shown in step #29 (below).
Page 69 TOTALINE How to Set and Reset the Humidifier How to Set and Reset the Humidifier Run-Time Alarm Run-Time Alarm This counter keeps track of the number of days since the Service Humidify icon was last reset; this icon will appear after the number of days set in step #30 (below) has elapsed.
Page 70: Programming The Holiday Mode
SECTION 16 Programming Holiday Mode Programming Holiday Mode TOTALINE When the thermostat is programmed for a Holiday mode, it will take effect at 12:00 am of the next day. The thermostat must be in the Program On mode for Holiday mode to take effect. The thermostat will control to the Unoccupied cooling and heating setpoints set in Section 6, pages 6.2 and 6.3.
Page 71 TOTALINE Programming Holiday Mode Programming Holiday Mode (continued) (continued) HOLIDAY DISPLAY - When the thermostat is placed into the Holiday mode, the thermostat will display the screen shown below. To return the thermostat to normal operation from Holiday mode, press the HOLIDAY button and adjust the number of days in step #1 to zero (see previous page).
Page 72: Configuring The Misc Outputs
SECTION 17 Configuring the MISC Outputs Configuring the MISC Outputs TOTALINE Section 17 Contents: Configuring the Jumpers..17.2 Explanation of Jumper Settings........17.3 Page 17.1...
Page 73 TOTALINE Configuring the Jumpers Configuring the Jumpers For additional flexibility, your thermostat has three configurable outputs. These outputs are designed to have different functions depending on how the jumpers are set (below). Each output, labeled MISC1, MISC2, and MISC3 may be set for one of the four choices available.
Page 74 TOTALINE Explanation of Jumper Settings Explanation of Jumper Settings W3 JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal on the backplate will control a third stage of heat. W3 MULTI-STAGE OPERATION EXPLAINED - SECTION 13 The 3rd Stage of Heat is turned on when: (A) The 1st and 2nd stages have been on for the time required (steps 23 and 24, page 13.6).
Page 75 TOTALINE Explanation of Jumper Settings Explanation of Jumper Settings (continued) (continued) DEHUM JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw terminal on the backplate will be connected to the dehumidification terminal of a furnace board. NOTE: Not all furnaces have a dehumidification terminal.
Page 76 TOTALINE Explanation of Jumper Settings Explanation of Jumper Settings (continued) (continued) Y2 JUMPER SETTING If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a second stage of cooling. Y2 OPERATION - SECTION 13 Control up to two Cool stages.
Page 77: Factory Defaults, Calibration, And Sensors
SECTION 18 Factory Defaults, Calibration, and Sensors Factory Defaults, Calibration, and Sensors TOTALINE Section 18 Contents: Resetting the Thermostat to the Factory Default Settings..18.2 Calibrating the Temperature and Humidity Sensors...18.3 Page 18.1...
Page 78 TOTALINE Resetting the Thermostat to the Resetting the Thermostat to the Factory Default Settings Factory Default Settings (for default values see page 20.1) (for default values see page 20.1) If, for any reason, you desire to return all the stored settings back to the factory default settings, follow the instructions below.
Page 79 TOTALINE Calibrating the Temperature and Humidity Sensors Calibrating the Temperature and Humidity Sensors Under normal circumstances it will not be necessary to adjust the calibration of the temperature and humidity sensors. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure.
Page 80: Accessories
SECTION 19 Accessories Accessories TOTALINE ACCESSORY PORT - The RJ11 Jack is used to connect the P374-2800 to the IR Receiver P/N P374-0431 for wireless communication or the EZ Programmer P/N P374-0432 for easy downloading or uploading of thermostat information. The Accessory Port is located on the bottom of the thermostat.
Page 81: Advanced Setup Table
SECTION 20 Advanced Setup Table Advanced Setup Table TOTALINE Step# Description Range Step# Description Range Df* Yes/No Minimum Heat/Cool Programmable 13.2 0 - 6 Thermostat Differential Yes/No Cycles Per Hour 13.3 d1, d, 2-6 Auto-Changeover Thermostat Deadband/Temp. 13.5 1 - 6 Fan Off Delay 0, 30, 60, Swing 1st Stage...
Page 82 SECTION 21 Index Index TOTALINE 8.3, 18.2 temperature, outside, 2.2, 5.2 13.7, 20.1 Override, 2.2, 6.6 Y2 operation, 17.5 up, 1.2, 2.2, 8.3, deadband, see 12.4 Deadband Alarms see Run-Time droop, see Deadband electric/heat pump, Auto adjust temperature, 12.2 icon, 2.3 1.4, 4.8 changeover, 4.5, 4.7, indicator, 2.2...
Page 83 SECTION 21 Index Index Index Index TOTALINE 3rd stage, 13.4-13.5, jumper, 12.2 13.7, 20.1 Green Indicator, 2.2 Dehumidify cool to, 10.3, 20.1 DEHUM jumper, F, 8.2, 20.1 10.5 Factory Defaults icon, 2.4 caution, ii setpoint, 10.2 settings, 18.2 Heat Delay resetting, 18.2 1st stage fan-off, see Fan...
Page 84 SECTION 21 Index Index TOTALINE 12.2 icon, 2.3 indicator, 2.2 Mode, 1.3 program, see Program Internet-based LCD, 2.2 run-time, see Run- Operation, Locked Indication Time see Programmable see Keypad Lockout setpoint, 1.3-1.4, Output 6.2, 6.5 IR Receiver, 19.1 icon, 2.4, 5.2 Heat Pump IR Remote Control, security setpoint, 8.4...
Page 85 SECTION 21 Index Index Index Index TOTALINE mode, 1.3, 4.6-4.7 on at all times, 8.4 override, 6.6 On icon, 2.3 programming, 6.2- override, see Override setpoint limits, 8.4 programming tips, 6.5 Non-Programmable Thermostat, 4.2, worksheet, back worksheet, back page page Programmable 4.4-4.5 Normally...
Page 86 SECTION 21 Index Index TOTALINE 4.2-4.3 resetting, see Reset run-time, see Run- Time setting, see Run-Time Schedule, Daily, see Program 2nd stage turn off Terminal, MISC, see temperature, MISC 13.7, 20.1 Thermostat Sensor Security calibrate, 22.3 Warranty, 22.1 level, 8.4, 20.1 Time, see Clock setpoints, 8.4, 20.1 Time Delay,...
Page 87 Section 22 Warranty Warranty TOTALINE One-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within one year from the date of original installation, whether or not actual use begins on that date, that the product does not meet this warranty, a new or remanufactured part, at the manufacturer’s sole option to replace any defective part, will be provided without charge for the part itself provided the defective part is returned to the distributor through a qualified servicing dealer.
Page 88 Programming Worksheet see Section 6 DAY PERIOD START TIME COOL HEAT Unoccupied Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Mon Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Tue Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Wed Occupied 1 Occupied 2 Occupied 3 Unoccupied...

Carrier Totaline P374-2800 Owner's Manual

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