Trane NEXIA XR724 User's guide and installation instructions

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18-HD82D1-1B-EN

Nexia Smart Home

Comfort System

Customer Service:

For HVAC related

issues, contact your

servicing dealer

XR724 Touchscreen Comfort Control

Model TCONT724AS42DA

User Guide and Installation Instructions

Î NOTE: A 24 Volt

common and hot wire MUST be connected to the XR724 for operation.

Contents User Guide

Features .............................................................................................................................2

Operation ............................................................................................................................ 3

User settings .......................................................................................................................4

Schedules ........................................................................................................................... 5

Display settings ..................................................................................................................5

Sensor settings ................................................................................................................... 5

WiFi settings ....................................................................................................................... 6

Nexia settings ..................................................................................................................... 6

Installer settings ..................................................................................................................7

Test Mode ........................................................................................................................... 7

Reminders ..........................................................................................................................8

Restore Defaults ................................................................................................................. 8

About ..................................................................................................................................8

Clean Screen ...................................................................................................................... 8

Nexia Mobile App Instructions ............................................................................................ 9

Installer’s Guide

Product Specications ..................................................................................................... 16

Installation and Wiring .....................................................................................................17

Physical Location .............................................................................................................17

Field Wiring Diagrams ......................................................................................................18

Remote Temp Sensors ..................................................................................................... 35

Troubleshooting ................................................................................................................ 37

FCC/IC notice ................................................................................................................... 38

XR724 USER GUIDE

XR724 Features

• WiFi comfort control

• Remote access via smartphone, tablet, or P.C. (requires a NexiaTM Smart Home Comfort System account)

• Interactive 4.3” black & white touchscreen

•

7 Day programmable, 4 schedules/day

• Built in humidity sensor with RH display

• Filter, maintenance, humidier service reminders

• Remote temperature sensing option (1 indoor/1 outdoor)

• Auxiliary & compressor heat lockouts

• Dehumidication (over cooling)

• Enhanced dehumidication (cooling)

• Adjustable variable speed fan settings (pwm)

• Energy Savings Mode (ESM)

• Screen lock

• Upgradable rmware (requires a Nexia™ Smart Home Comfort System account)

• Service test modes

• Humidier control

XR724 Product Specications

Specication Description

Product Model: TCONT724AS42DAA

Product: XR724 HVAC System comfort control. WiFi communications enabled.

Size: 5.75” wide x 3.5” height x 1” depth

Display: Fixed Segment LCD, 4” x 2.25”, with 17 character alpha numeric display

Touchscreen: Yes

Backlight: Yes, White, Controllable, on, off, timeout

Power: 24VAC from HVAC System

HVAC System Type: Standard (gas/electric), Heat Pump, or Dual Fuel

Heat/Cool Stages: Up to four stages of heat/two stages cool

PWM Output (BK) Variable speed motor control

Heat Pump Switchover valve: Selectable change over with cool or with heat

Auxiliary Contact Humidier, Ventilation or Dehumidier control

Communications: WiFi

Memory: Non-volatile

Date/Time: 12 hour super capacitor backup

Time is automatically updated if the control is connected to Nexia Smart Home Comfort System

XR724 USER GUIDE

Operation

The XR724 Comfort Control provides typical operation of a forced air heating and cooling HVAC system. It also features WiFi capability for remote control and Nexia Smart Home Comfort System connectivity.

Cooling

Auto

Fan

Hold

Cool

Sched Mode

Normally, the Comfort Control displays the Home Screen as shown above.

Item Description Notes

Clock Display The current time is displayed in the upper left corner

Dynamic Labels and Func tion Control Buttons

Setpoint Display and Setpoint Up/Down Buttons

Temperature Display The Comfort Control displays the current temperature

Menu Button Button used to access other Comfort Control menus

System Mode Button Button used to change the system mode. Off: System off

Fan Mode Button Button used to change the fan mode Auto: Fan on when cooling/heating is necessary

Schedule Mode Button Button used to change the schedule mode

of the main screen. The time will blink when the clock has not been set.

The buttons are dened by the dynamic labels in each

button. As you navigate through menus, the labels for the buttons will change.

The current heat or cool setpoint is displayed. These setpoints may be set using Nexia Smart Home Comfort System, the Control’s internal schedule, or by pressing the Setpoint Up/Down buttons. Pressing the setpoint button changes the setpoint screen. The current mode is displayed at the top of the screen. Adjust the setpoint by pressing the up or down arrows. To change setpoint mode press the MODE button.

as sensed by the internal temperature sensor.

The default mode is HOLD which disables scheduling.

See TIME/DATE for more information. If the control is connected to Nexia Smart Home Comfort System the clock will be updated by the Nexia portal.

The setpoints will push each other if they are adjusted to within the minimum heat/cool separation setting. This is normally 3 degrees.

The internal temperature sensor can be adjusted as necessary.

Heating: Heating only Cooling: Cooling only Auto: Heating/Cooling as necessary EM Heat: Heat Pump Emergency Heat, Compressor Disabled, Indoor Heat only.

On: Fan constantly on Circ: Fan on for a user-selected number of minutes per hour

Hold: System maintains the current temperature setpoints. Schedules are disregarded. Run: Run the system schedule Energy Saving Mode (ESM): Run schedule using the ESM Setpoints. Manual setpoint changes while in Run Schedule mode will only last until the next schedule period.

XR724 USER GUIDE

MENU OPTIONS

The following is a guide of the menu options available by pressing the Menu button. Certain menu selections, which are marked by an asterisk ( * ), may or may not be present depending on other menu settings.

HUMIDITY *

* Only appears as a menu item if Dehumidify is set to Yes, Aux Relay is set to Dehumidier, or Aux Relay is set to

Humidity.

HUMIDITY

Setting Range Description

Cooling RH Target* 30% to 60% [50%] Select the desired indoor relative humidity during cooling mode. Dehu-

Heating RH Target* 10% to 45% [40%] Select the desired indoor relative humidity during heating mode.

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

USER SETTINGS

midication must be enabled in the Installer Settings for this option to be

available.

Humidication must be enabled in the Installer Settings for this option to

be available.

User Settings allow the user to customize various settings on the XR724 control. To access User Settings simply press the Menu button once and “User Settings” will be displayed. To enter the User Settings menu, press the Select button, then use the Next button to navigate through the options below. The default setting will be shown in brackets. After each selection press the Done button to save changes. Certain menu selections, which are marked by an asterisk ( * ), may or may not be present depending on other menu settings.

THERMOSTAT

Setting Range / Sub Setting Description / Range of Sub Settings

Temperature Scale [Fahrenheit], Celsius Select the temperature display scale

Max Heat Setpoint 55 - [90] Degrees Select the highest heating setpoint allowed

Min Cooling Setpoint [60] - 99 Degrees Select the lowest cooling setpoint allowed

Time/Date* Set Hour 1 - 12 AM, 1 - 12 PM [12PM]

If connected with Nexia, then time and date are provided by the network

Continuous Fan Airow* 35% - 100% [50%] Select the desired fan speed when the Fan Mode selected is Continuous

Fan Circulate On Time [10] - 55 minutes Select the desired amount of time the fan will cycle per hour when the Fan

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

Set Minutes 0 - 59 [0]

Day of Week [Sun], Mon, Tue, Wed, Thr, Fri, Sat

Year [2013] - 2113

Month [Jan], Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec

Date [1] - 31

DST Enable [Yes], No

(variable speed blower required). Only available if ID Fan Type = Variable.

Mode selected is Circ

XR724 USER GUIDE

USER SETTINGS continued

SCHEDULES

Setting Range / Sub Settings Description / Range of Sub Settings

ESM Heat Setpoint* 55 - 90 degrees [62]

ESM Cooling Setpoint* 60 - 99 degrees [85] Select the desired Cooling Setpoint when ESM is selected

Edit Schedule* Select Day (use Back/Next)

Wake Period

Day Period Set Time [8:00 am]

Eve Period Set Time [6:00 pm]

Night Period Set Time [10:00 pm]

Copy Schedule* Copy from (use Back/Next)

Select day to copy Copy (day selected) To

Smart Recovery* Yes, [No]

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

Select the desired Heating Setpoint when ESM (Energy Savings Mode)

is selected

This section is done for each day Set Time [6:00 am]

Heat Setpoint 60˚- 90˚ [70] Cool Setpoint 60˚- 90˚ [78]

Heat Setpoint 60˚- 90˚ [62] Cool Setpoint 60˚- 90˚ [85]

Heat Setpoint 60˚- 90˚ [70] Cool Setpoint 60˚- 90˚ [78]

Heat Setpoint 60˚- 90˚ [62] Cool Setpoint 60˚- 90˚ [78]

Copy selected day to current schedule period.

DISPLAY

Setting Range Description

Backlight On 0 - [100] percent Select the screen brightness level when the backlight is lit

Backlight Off [0] - 100 percent Select the screen brightness level when the backlight timeout expires

Display Lock [Unlocked], Display lock Select security level

• Unlocked - Enables selection of all menus and settings

• Display Lock - Disables selection of all menus and settings

Note: When Display Lock is selected a lock icon will appear next to the up arrow. Note: To disable Display Lock, press and hold the Menu button 5 seconds until the lock icon disappears.

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

CALIBRATE SENSORS

Setting Range Description

Sensor Cal +/- 7 degrees (F or C) [0 deg] Calibrate the internal temperature sensor (1˚ in F = 2˚ in C)

Remote Sensor Cal* +/- 7 degrees (F or C) [0 deg] Calibrate an attached remote sensor

ODT Sensor Cal* +/- 7 degrees (F or C) [0 deg] Calibrate an attached outdoor sensor

RH Cal +/- 7 % [0 %] Calibrate the internal humidity sensor

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

XR724 USER GUIDE

WIFI

Even though open networks (no password) and WEP WiFi encryption are supported, it is recommended to use a more secure network encryption such as WPA2 or later.

WIFI

Setting Range Description

Network Join a Network

Status WiFi not congured

Connection Result WiFi not congured

Info SPWF FW Firmware version displayed

Retries Retries (X) Number of connection retries

Connection Time Disconnected OR X hours Connection hours

RSSI RSSI – xx DBM Connection signal strength

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

OR leave network

OR Nexia enrolled

OR Success

SSID Not Available OR Network Name displayed

IP Not Available OR IP Address displayed

Mask Not Available OR Mask displayed

GW Not Available OR Gateway IP address displayed

DNS Not Available OR DNS IP address displayed

MAC Not Available OR MAC address displayed

Network connection action required: Yes, No

Status of Network connection

Status of WiFi connection

NEXIA

Setting Range Description

Status WiFi Not Congured

Enrolled

Info URL (XXXX)

Port (XXXXX) Nexia Pin (XXXX)

Enroll OR Unenroll Enroll, Unenroll Join OR leave a Nexia connection

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

WiFi connection status

Nexia connection info

XR724 USER GUIDE

The following is a guide of the menu options available on screen accessed by pressing the Menu button. Certain menu selections, which are marked by an asterisk ( * ), may or may not be present depending on other menu settings.

SERVICE

Press and hold Service button for 5 seconds until service menu is displayed

INSTALLER SETTINGS

Setting Sub Settings Range

Equipment Type ODU Type (Outdoor Unit) None, [AC], HP

ODU Stages [1 Stage], 2 Stages

Compressor Type* [1 Comp - 2 Stage], 2 Comp - 2 Stage

IDU Type [Gas / Oil], Electric, Hydronic

Hydronic Type* [Hydro Air], Wet Heat

ID Heat Stages [1 Stage], 2 Stages

ID Fan Type [Non-Variable], Variable

SOV Operation* [with Cool], With Heat

Sensor Settings Remote Sensor [None], Replace Indoor, Average

ODT Sensor [None], Outdoor

Accessories Aux Relay [None], Humidity, Ventilation, Dehumidier

Control Option* [With Active Heat], Without Active Heat

Vent Run Time* [Off], 5 - 60 min in 5 min increments

Comfort Settings Control Response [Normal], Less Aggressive, More Aggressive (see page 9 for denitions)

Dehumidify* [Yes], No

Overcooling Limit* [Off], 1 deg, 2 deg, 3 deg

Smart Cont Fan* [No], Yes

Airow Settings One of the following groups will be

Fan type = Non Variable On Delay Cooling [0], 5-90 Sec in 5 sec increments

Off Delay Cooling [0], 5-90 Sec in 5 sec increments

On Delay Heating* [0], 5-90 Sec in 5 sec increments

Off Delay Heating* [0], 5-90 Sec in 5 sec increments

Fan type = Variable On Delay Cooling Disabled, [Enhanced Mode], 30 sec delay

Off Delay Cooling Disabled, [1.5 Min at 100%], 45 sec delay

On Delay Heating* Disabled, [Enhanced Mode], 30 sec delay

Off Delay Heating* Disabled, [1.5 Min at 100%], 45 sec delay

Hydronic Type = Hydro Air On Delay Heat [0], 5-90 Sec in 5 sec increments

Off Delay Heat [0], 5-90 Sec in 5 Sec increments

Lockouts* Aux Heat [No], Yes

Aux Lockout ODT* 30 - 70 Deg [50 Deg]

Comp Heat [No], Yes

Comp Lockout ODT* 5 - 70 Deg, [40 Deg]

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

displayed

XR724 USER GUIDE

SERVICE continued

TEST MODE (stays on for 30 minutes)

Test Mode Settings Description

Blower (Non-VS) Blower On Energize “G” circuit

Blower (VS) 50%, 100% Energize “G” and “BK” circuit

Cooling Single Stage, 1st Stage, 2nd Stage Energize selected “Y1” or “Y2”, “O” and “G” circuit (BK also for VS

Comp Heating*

Indoor Heating

Aux Relay Relay On Close normally open dry contacts

Once testing is complete, press the Done button to exit and return to menu.

Single Stage, 1st Stage, 2nd Stage

REMINDERS

Setting Range Description

Filtration Enable [No], Yes Filter change reminder

Filter Period* [Monthly], Quarterly, Bi-Annually,

Start Month* [Jan], Feb, Mar, Apr, May, Jun,

System Maint Enable [No], Yes System Maintenance reminder

Maint Period* [Bi-Annually], Annually Maintenance reminder period

First Maint Month* Jan, Feb, [Mar], Apr, May, Jun,

Second Maint Month* Jan, Feb, Mar, Apr, May, Jun, Jul,

Humidier Enable [Yes], No

Start Month [Jan], Feb, Mar, Apr, May, Jun,

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

Annually

Jul, Aug, Sep, Oct, Nov, Dec

Aug, [Sep], Oct, Nov, Dec

Jul, Aug, Sep, Oct, Nov, Dec

indoor unit)

Energize selected “Y1” or “Y2” and “G” circuit (“BK” also for VS indoor unit)

Energize selected “W1” or “W2” (“G” circuit also for electric heat)

Filter change reminder period

Period start month

2nd period start month

RESTORE DEFAULTS

Setting Action Description

Restore HVAC Defaults Yes, No Resets all HVAC settings to Default Settings

Restore Factory Defaults Press and Hold “Yes” Press and hold “Yes” button until “Factory” is displayed

Resets HVAC and WiFi defaults

ABOUT

Setting Range Description

Version XXXXXX Firmware version number

Device ID (SIN) XXXXXX Unit serial number

ODU Type None, AC, HP Outdoor unit type setting

IDU Type Electric, Gas/Oil, Hydronic Indoor unit type setting

SOV W/Cool, W/Heat Switchover value type setting (HP only)

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

XR724 USER GUIDE

CLEAN SCREEN

Setting Range Description

Clean Screen Yes, No 30 sec countdown

Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.

XR724 Control Response Proles

From Installer Settings / Comfort Settings (numbers are in degrees, F or C)

Cooling Normal Less Aggressive More Aggressive

Cooling Delta Stage 1 ON 0.5 1 0.5

Cooling Delta Stage 2 ON 1.5 2 1

Cooling Delta Stage 1 OFF -0.5 0 -1.0

Cooling Delta Stage 2 OFF -0.5 0 -1.0

Heating - HP Normal Less Aggressive More Aggressive

Comp Heat Delta Stage 1 ON 0.5 1 0.5

Comp Heat Delta Stage 2 ON 1.5 2 1.0

Indoor Heat Delta Stage 1 ON 2.5 3 1.5

Indoor Heat Delta Stage 2 ON 3.5 4 2.0

Comp Heat Delta Stage 1 OFF 0 0 0

Comp Heat Delta Stage 2 OFF 0 0 0

Indoor Heat Delta Stage 1 OFF 0 0 0

Indoor Heat Delta Stage 2 OFF 0 0 0

Heating - Gas Normal Less Aggressive More Aggressive

Indoor Heat Delta Stage 1 ON 0.5 1 0.5

Indoor Heat Delta Stage 2 ON 1.5 2 1.0

Indoor Heat Delta Stage 1 OFF 0 0 0

Indoor Heat Delta Stage 2 OFF 0 0 0

Timers Normal Less Aggressive More Aggressive

Heat Stage UP Timer 15 min 20 min 10 min

Cool Stage UP Timer 15 min 20 min 10 min

XR724 NEXIA Enrollment

XR724 USER GUIDE

The XR724 uses the Nexia mobile app to enroll into Nexia. To enroll download the Nexia app from the Google Play™ Store or App Store follow installation wizard prompts.

, then launch the app. Once in the app, click Connect New Device, select 724 thermostat then

XR724 USER GUIDE

XR724 NEXIA Enrollment continued

Even though open networks (no password) and WEP WiFi encryption are supported, it is recommended to use a more secure network encryption such as WPA2 or later.

XR724 USER GUIDE

XR724 NEXIA Enrollment continued

XR724 USER GUIDE

XR724 NEXIA Enrollment continued

XR724 Nexia WiFi Reconguration

PRESS

XR724 USER GUIDE

XR724 Nexia WiFi Reconguration continued

XR724 USER GUIDE

XR724 Nexia WiFi Reconguration continued

XR724 USER GUIDE

XR724 Nexia WiFi Reconguration continued

XR724 USER GUIDE

XR724 Nexia WiFi Reconguration continued

XR724 INSTALLER’S GUIDE

Incorrect

Natural heat

Correct

INSTALLATION AND WIRING

MERCURY NOTICE

When this Comfort Control is replacing an old thermostat that contains mercury in a sealed tube, do not dispose of your old thermostat in the trash. Dispose of properly. Contact your local waste management authority for instructions regarding recycling and proper disposal of the old thermostat.

A listing of heating, ventilating and air conditioning wholesalers that participate in the Thermostat Recycling Corporation’s recycling program are available at www.thermostat-recyle.org.

PHYSICAL LOCATION

Temperature Sensing Considerations

The XR724 Control is designed for installation in climate controlled living spaces. It is recommended to place the unit in central locations with good circulation. Avoid exterior walls and areas near windows, doors, vents or concealed pipes or chimneys.

Placement

Placement of the 950

of the XR724

2 FEET

Optimum Zone

5 FEET

dissipation from the XR724 Touch Screen

Onboard Thermistor

Ceiling Fan

Placement of the XR724

Heat from the XR724 screen may be

trapped within the body of the XR724

control by an external top-down airflow

source, such as a ceiling fan.

The onboard thermistor may

be biased by this heat

causing the displayed indoor

temperature to be elevated.

P M

enu

ooli

S ched

Cool

o d

Auto

Fan

XR724 INSTALLER’S GUIDE

AUX/C

J2 AUX NC

C R W1 W2

O/B

RS RS ODT ODT

AUX NO

Y1 Y2 J1

AUX/C

J2 AUX NC

R W1 W2 O/B

RS ODT ODT

AUX NO

Y1 Y2 J1

AUX/C

J2 AUX NC

R W1 W2 O/B

RS ODT ODT

AUX NO

Y1 Y2 J1

AUX/C

J2 AUX NC

C R W1 W2 O/B

RS ODT ODT AUX NO

Y1 Y2 J1

CAUTION: Before proceeding with installation, verify system power has been removed.

Separate the face of the new Comfort Control from the wall plate.

Mark two mounting holes using new wall plate.

• Pull wires through hole in center of wall plate.

• Locate the new wall plate over existing opening.

• Mark two holes with pencil.

• Use a level to verify that the two hole locations are level.

• Correct hole locations as needed.

Install new wall plate.

• Pull wires through hole in center of wall plate.

• Locate the new wall plate over existing opening.

• Attach wall plate to wall using two screws provided. Do not overtighten.

CAUTION: ELECTRICAL HAZARD

Î NOTE: It is not recommended that this WiFi Comfort Control be mounted onto

metal structures. Metal may adversely affect the radio frequency (RF) communication between the Comfort Control and the WiFi network .

Attach all wires securely to the new Comfort Control.

(See the Field Wiring Diagrams on the following pages.)

Note: A wire must be connected to “C” to power the Comfort Control.

• Use the information from the Field Wiring Diagrams to match the wires to the correct terminals.

• Use 1/8” blade screwdriver to secure wires in terminals.

CAUTION: EQUIPMENT DAMAGE HAZARD

Improper wiring can lead to equipment damage. Use the eld wiring diagrams to ensure the Comfort Control is wired properly. After

wires are secure, bare wires MUST NOT touch each other. See the Field

Connection Wiring Diagrams on the following pages for specic system applications.

Attach the Comfort Control face to the wall plate.

a. Carefully align the face plate to the wall plate while aligning pins

into wire terminals.

b. Once Comfort Control face is properly aligned, apply pressure at

top and bottom of Comfort Control face until it is secure.

C R W1 W2

O/B

RS RS

ODT

Y2 J1

AUX NO AUX/C

J2 AUX NC

Turn power to heating and cooling system back on.

The Comfort Control display should turn on and begin displaying information.

Proceed to Installer’s Setup to congure system

settings.

Heat/Cool Diagram 1: 1 or 2 Stage Cooling w/TAM7 Model Variable Speed Air Handler or TAM9 24V mode

YI (In)

B/C

Y 1

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. “Y2” & “R” connections at outdoor are only required for two stage units

3. Jumper “W2” to “W3” if three stages of indoor heat are available

4. “YI” and “YO” connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly

5. If third party condensate overflow switches are installed, they should be wired between “Y1” of the thermostat and “YI” of the airflow control board

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

VS Air Handler &

Electric Heat

One or Two Stage

Cooling Only

(Note 1)

(Note 2)

(Note 3)

(Note 5)

(Note 4)

Field Wiring Diagrams

Heat/Cool Diagram 2: 1 Stage Cooling w/GAM5A & TAM4 Model Air Handler

YI (In)

B/C

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

2. “YI” and “YO” connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly

3. If third party condensate overflow switches are installed, they should be wired between “Y” of the thermostat and “YI” of the airflow control board

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Non-VS

Air Handler &

Electric Heat

One Stage

Cooling Only

(Note 1)

(Note 2)

(Note 3)

Heat/Cool Wiring Diagrams

XR724 INSTALLER’S GUIDE

Heat/Cool Wiring Diagrams

Heat/Cool Diagram 3: 1 Stage Cooling w/“GAM5B” Model Air Handler

XR724 INSTALLER’S GUIDE

One Stage

Cooling Only

Non-VS

Air Handler &

Electric Heat

B/C

(Note 1)

(Note 2)

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat is available

2. “Y” terminal must be connected at indoor unit for high stage airflow.

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Heat/Cool Diagram 4: 2 Stage Cooling w/GAM5B Model Air Handler

Two Stage

Cooling Only

Y 1

Notes:

1. Jumper “W2” to “W3” if three stages of

2. “Y” must be connected at indoor unit

(Note 2)

indoor heat are available

for cooling airflow

Non-VS

Air Handler &

Electric Heat

B/C

(Note 1)

(Note 2)

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Non-VS

Air Handler &

Electric Heat

Heat/Cool Diagram 5: 1 Stage Cooling w/GAF2-S Model Air Handler

B/C

One Stage

Cooling Only

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat/Cool Diagram 6: 1 Stage cooling w/GAF2-36M Model Air Handler

YI (In)

B/C

Notes:

1. “YI” and “YO” connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly

2. If third party condensate overflow switches are installed, they should be wired between “Y1” of the thermostat and “YI” of the airflow control board

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Non-VS

Air Handler &

Electric Heat

One Stage

Cooling Only

(Note 1) (Note 2)

Heat/Cool Wiring Diagrams

XR724 INSTALLER’S GUIDE

Non-VS Air Handler & Electric Heat

Heat/Cool Diagram 7: 1 Stage Cooling w/GAT2 & GAM2 Model Air Handlers

B/C

One Stage

Cooling Only

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

(Note 1)

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Non-VS Air Handler & Electric Heat

Heat/Cool Diagram 8: 1 Stage Cooling w/TEM3 Model Air Handler

B/C

One Stage

Cooling Only

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

(Note 1)

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat/Cool Wiring Diagrams

XR724 INSTALLER’S GUIDE

Non-VS

Air Handler &

Electric Heat

Heat/Cool Diagram 10: 1 Stage Cooling w/non-Variable Speed Air Handler (Excludes Hyperion/Forefront/TEM3 Air Handlers)

B/C

One Stage

Cooling Only

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

(Note 1)

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat/Cool Wiring Diagrams

Heat/Cool Diagram 9: 1 or 2 Stage Cooling w/TEM8, TEM6 Variable Speed Air Handler

XR724 INSTALLER’S GUIDE

One or Two Stage

Cooling Only

(Note 2)

Y 1

(Note 2)

VS Air Handler &

Electric Heat

B/C

(Note 4)

(Note 1)

(Note 3)

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. “Y2” & “R” connections at outdoor are only required for two stage units

3. Jumper “W2” to “W3” if three stages of indoor heat are available

4. For non-Trane/American Standard Indoor units “BK” is not connected and “Y1”/”Y2” must be connected at indoor unit.

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Two Stage VS

Gas Furnace

Heat/Cool Diagram 12: 1 or 2 Stage Cooling w/Variable Speed Gas Furnace

B/C

One or Two stage

Cooling Only

Y 1

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. “Y2” & “R” connections at outdoor are only required for two stage units

3. For non-Trane/American Standard Indoor units “BK” is not connected and “Y1”/”Y2” must be connected at indoor unit.

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

(Note 2)

(Note 3)

(Note 1)

Heat/Cool Wiring Diagrams

Heat/Cool Diagram 11: 1 Stage Cooling w/non-Variable Speed Gas Furnace

XR724 INSTALLER’S GUIDE

One Stage

Cooling Only

One or Two Stage

Gas Furnace

B/C

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Non-VS

Oil Furnace

Heat/Cool Diagram 13: 1 Stage Cooling w/non-Variable Speed Oil Furnace

B/C

One Stage

Cooling Only

Notes:

1. BT (Bonnet Thermostat) model THT1248 required for dual fuel, oil furnace applications.

2. Field supplied relay (R1) required for oil burner primary

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Oil Burner Primary

(Note 1)

(Note 2)

Heat/Cool Wiring Diagrams

XR724 INSTALLER’S GUIDE

Heat/Cool Diagram 14: 1 or 2 Stage Cooling w/Variable Speed Oil Furnace

One or Two Stage

Cooling Only

Y 1

(Note 2)

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. “Y2” & “R” connections at outdoor unit are only required for 2 stage systems

3. For non-Trane/American Standard Indoor units “BK” is not connected and “Y1”/”Y2” must be connected at indoor unit.

4. BT (Bonnet Thermostat) model THT1248) required for dual fuel, oil furnace applications

5. Field supplied relay (R1) required for oil burner primary

(Note 5)

Variable Speed

Oil Furnace

B/C

(Note 3)

(Note 1)

Thermostat Connection

(Note 4)

Oil Burner Primary

(Note 5)

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Package Unit

B/C

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat/Cool Diagram 15: Package Single or Multi-Stage Gas/Electric with Variable Speed Blower

Notes:

1. Cut/remove the factory installed “BK” jumper on the ECM fan control board

2. For non-Trane/American Standard Indoor units “BK” is not connected

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

(Note 1) (Note 2)

Package Unit

B/C

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat/Cool Diagram 16: Package Single Stage Gas/Electric with non-Variable Speed Blower

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Heat/Cool Wiring Diagrams

XR724 INSTALLER’S GUIDE

Variable Speed Air

Handler & Electric Heat

Heat Pump Diagram 2: 1 Stage Heat Pump w/GAM5A & TAM4 Model Air Handler

B/C

One stage

Heat Pump

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

2. “YI” and “YO” connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly.

3. If 3rd party condensate overflow switches are installed, they should be wired between “Y” of the thermostat and “YI” of the airflow control board.

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

(Note 1)

(Note 2)

(Note 3)

Heat Pump Wiring Diagrams

Heat Pump Diagram 1: 1 or 2 Stage Heat Pump w/TAM7 Model Variable Speed Air Handler

One or Two stage

Heat Pump

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. Jumper “W2” to “W3” if three stages of indoor heat are available

3. “YI” and “YO” connections must be made as show for freeze protection and internally mounted condensate overflow circuits to work properly

4. If 3rd party condensate overflow switches are installed, they should be wired between “Y1” of the thermostat and “YI” of the airflow control board

Variable Speed Air

Handler & Electric Heat

B/C

(Note 2)

YI (In)

(Note 3)

(Note 1)

(Note 4)

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

XR724 INSTALLER’S GUIDE

Heat Pump Wiring Diagrams

Heat Pump Diagram 3: 1 Stage Heat Pump w/GAM5B Model Air Handler

One stage

Heat Pump

Non-VS Air

Handler & Electric Heat

B/C

(Note 1)

(Note 2)

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

2. “Y” terminal must be connected at indoor unit for cooling airflow

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor Sensor

Aux relay outputs

Heat Pump Diagram 4: 2 Stage Heat Pump w/GAM5B Model Air Handler

Two stage

Heat Pump

Notes:

1. Jumper “W2” to “W3” if three stages of indoor

2. “Y2” terminal must be connected at indoor unit

Non-VS Air

Handler & Electric Heat

B/C

W 2

Y I

heat are available

for cooling airflow

(Note 1)

(Note 2)

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

XR724 INSTALLER’S GUIDE

Non-VS Air Handler

& Electric Heat

Heat Pump Diagram 5: 1 Stage Heat Pump w/GAF2-S Model Air Handler

B/C

One stage

Heat Pump

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Non-VS Air Handler

& Electric Heat

Heat Pump Diagram 6: 1 Stage Heat Pump w/GAF2-36M Model Air Handler

Y I

B/C

One stage

Heat Pump

Notes:

1. “YI” and “YO” connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly

2. If 3rd party condensate overflow switches are installed, they should be wired between “Y” of the thermostat and “YI” of the airflow control board

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

(Note 1)

(Note 2)

Heat Pump Wiring Diagrams

XR724 INSTALLER’S GUIDE

Heat Pump Wiring Diagrams

Heat Pump Diagram 7: 1 Stage Heat Pump w/GAT2 & GAM2 Model Air Handler

One stage

Heat Pump

Non-VS Air Handler

& Electric Heat

B/C

(Note 1)

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Heat Pump Diagram 8: 1 Stage Heat Pump w/TEM3 Model Air Handler

One stage

Heat Pump

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available

Non-VS Air Handler

& Electric Heat

B/C

(Note 1)

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

XR724 INSTALLER’S GUIDE

Heat Pump Wiring Diagrams

Heat Pump Diagram 9: 1 or 2 Stage Heat Pump w/TEM8, TEM6 Variable Speed Air Handler

One or Two stage

Heat Pump

Variable Speed Air

Handler & Electric Heat

B/C

(Note 2)

(Note 3)

(Note 1)

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. Jumper “W2” to “W3” if three stages of indoor heat are available

3. For non-Trane/American Standard indoor units “BK” is not connected and the “Y1”/”Y2” must be connected at indoor unit

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Heat Pump Diagram 10: 1 Stage Heat Pump w/non-Variable Speed Air Handler (Excludes Hyperion/Forefront/TEM3 Air Handlers)

Single Stage

Heat Pump

Notes:

1. Jumper “W2” to “W3” if three stages of indoor heat are available.

Air Handler &

Electric Heat

B/C

(Note 1)

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Package Unit

B/C

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Heat Pump Diagram 12: Package Heat Pump with non-Variable Speed Blower

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

/X2

XR724 INSTALLER’S GUIDE

Heat Pump Wiring Diagrams

Heat Pump Diagram 11: Package Single or Multi-stage Heat Pump with Variable Speed Blower

Package Unit

Thermostat Connection

B/C

/X2

(Note 1) (Note 2)

O/B

Notes:

1. Cut/remove the factory installed “BK” jumper on the ECM fan control board

2. For non-Trane/American Standard indoor units “BK” is not connected

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Dual Fuel Wiring Diagrams

Dual Fuel Diagram 1: 1 or 2 Stage Heat Pump w/Variable Speed Gas Furnace

XR724 INSTALLER’S GUIDE

One or Two stage

Heat Pump

Y 1

Two Stage Variable

Speed Gas Furnace

B/C

(Note 2)

(Note 1)

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. For non-Trane/American Standard Indoor units “BK” is not connected and “Y1”/”Y2” must be connected at indoor unit.

3. Outdoor Sensor required for dual fuel restricted mode.

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor

Sensor

(Note 3)

Aux relay outputs

Dual Fuel Diagram 2: 1 Stage Heat Pump w/non-Variable Speed Gas Furnace

Single Stage

Heat Pump

Note:

1. Outdoor Sensor required for dual fuel restricted mode.

Non-VS One or Two

Stage Gas Furnace

B/C

Thermostat Connection

O/B

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

ODT

Remote

Sensor

Outdoor Sensor

(Note 1)

Aux relay outputs

Non-Variable Speed

Oil Furnace

Dual Fuel Diagram 4 : 1 Stage Heat Pump w/non-Variable Speed Oil Furnace

B/C

Single Stage

Heat Pump

Notes:

1. BT (Bonnet Thermostat) model THT1248 required for dual fuel, oil furnace applications

2. Field supplied relay (R1) required for oil burner primary

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Oil Burner Primary

(Note 1)

(Note 2)

Dual Fuel Wiring Diagrams

Dual Fuel Diagram 3: 1 or 2 Stage Heat Pump w/Variable Speed Oil Furnace

One or Two Stage

Heat Pump

Variable Speed

Oil Furnace

XR724 INSTALLER’S GUIDE

Thermostat Connection

Y 1

(Note 4)

B/C

(Note 3)

(Note 1)

Oil Burner Primary

(Note 4)

(Note 2)

Notes:

1. Cut/remove the factory installed “BK” jumper at the indoor unit

2. BT (Bonnet Thermostat) model THT1248 required for dual fuel, oil furnace applications

3. For non-Trane/American Standard indoor units “BK” is not connected and “Y1”/”Y2” must be connect at indoor unit

4. Field supplied relay (R1) required for oil burner primary

O/B

ODT

Remote

Sensor

Outdoor

Sensor

Aux relay outputs

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Package Unit

B/C

Aux relay outputs

ODT

O/B

Thermostat Connection

Outdoor

Sensor

Remote

Sensor

Dual Fuel Diagram 6: Package Single Stage Dual Fuel with Non-Variable Speed Blower

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

Remote Temperature Sensor Connections and Operation:

/X2

(Note 1)

Notes:

1. Outdoor Sensor required for dual fuel restricted mode.

Dual Fuel Wiring Diagrams

Dual Fuel Diagram 5: Package Single or Multi-Stage Dual Fuel with Variable Speed Blower

Package Unit

XR724 INSTALLER’S GUIDE

Thermostat Connection

B/C

/X2

(Note 1) (Note 2)

Notes:

1. Cut/remove the factory installed “BK” jumper on the ECM fan control board

2. For non-Trane/American Standard Indoor units “BK” is not connected

3. Outdoor Sensor required for dual fuel restricted mode.

O/B

ODT

Remote

Sensor

Outdoor Sensor

(Note 3)

Aux relay outputs

Remote Temperature Sensor Connections and Operation:

Sensor Options in the Installer Settings/Sensor Settings menu Remote Sensor (connect to the RS terminals)

- None

- Replaces internal sensor

- Average with internal sensor Outdoor Temp Sensor (connect to the ODT terminals)

- None

- Outdoor Caution: Do not run sensor wires in the same bundle with HVAC wires. Keep away from high voltage wiring to avoid interference.

XR724 INSTALLER’S GUIDE

Optional Remote Temperature Sensor Installation

Wire specication for remote sensors: 2 conductors, 18 gauge wire. Make sure that the sensor wires are installed

in a separate cable from the wiring to the HVAC system. Best results for distances of 100 feet or less. Accuracy may be affected for distances up to a maximum of 200 feet. Shielded cable is recommended for distances over 100 feet and less than 200 feet.

CAUTION: Keep this wiring at least one foot away from large inductive loads such as electronic

air cleaners, motors, line starters, lighting ballasts, and large distribution panels. Failure to follow these wiring practices may introduce electrical interference (noise) which can cause erratic system operation. Shielded cable is required if the above wiring guidelines cannot be met. Be sure to ground only one end of the shield to the Comfort Control common terminal. Tape back the other end of the shield.

Remote Sensor Part Numbers

Remote Indoor Sensor: Use ZZSENSAL0400AA for indoor applications. Remote Outdoor Sensor: Use BAYSEN01ATEMPA for outdoor applications.

> IMPORTANT: Make sure that the sensor wires are installed in a separate cable from the

Comfort Control cable.

> IMPORTANT: Follow directions below for averaging. These instructions replace the averaging

information found in the Installer’s Guide for the ZZSENSAL0400AA.

Remote Temperature Sensor Connections and Operation:

A) Indoor sensor connected to RS.

The Remote Sensor (RS) function can be congured

in the Service/Installer Settings/Sensor Settings menu. Options are:

• None

• Replaces onboard temp sensor of the

Comfort Control

• Averages with onboard temp sensor

Replace - RS Sensor replaces the internal

temperature sensor of the Comfort Control. This allows the Comfort Control to be installed in a location different than the area where the temperature will be measured. Use ZZSENSAL0400AA.

Average - RS Sensor averages its temperatures with the internal sensor. Use ZZSENSAL0400AA.

B) Outdoor sensor connected to ODT. Reports outdoor

temperature to the Comfort Control.

The Outdoor Sensor (ODT) function can be congured in

the Service/Installer Settings/Sensor Settings menu.

Options are:

• None

• Outside

Outside - ODT (outdoor temperature sensor). If ODT sensor is selected and connected, the outdoor temp is

displayed on the main screen. ODT model is BAYSEN01ATEMPA.

ODT

Remote

Sensor

Outdoor

Sensor

XR724 INSTALLER’S GUIDE

Troubleshooting

Symptom Possible Cause Action

Display will not come on Loss of 24VAC between R & C at the Control 1) Check wiring between R & C

Indoor Temperature display is incorrect

Indoor humidity display is incorrect

Room temperature overshoots the desired setpoint in cooling mode

Room temperature overshoots the desired setpoint in heating mode

Cooling will not come on 1) System mode is not set to Cool/Auto or

Heating will not come on 1) System mode is not set to Heat/Auto or

Heating or Cooling is being displayed, but no air coming from registers/ vents

Fan runs all the time 1) Fan mode is set to “On” or “Circ”

Fan is set to “On” but not running

1) Indoor temperature display needs calibrating (always allow 1 hour before calibrating after any power cycle)

2) Heat from the touchscreen is being trapped within the body of the control

Indoor humidity sensor needs calibrating Calibrate humidity sensor

1) The delta “Off” in cooling mode is set to a negative number

2) Cooling overshoot is enabled and the indoor RH is higher than the target cooling RH

3) Minimum compressor on time has not been met

Minimum compressor/indoor heat on time has not been met

setpoint is set too high

2) Delta “On” for cooling is set too high

3) Minimum off time delay is being enforced

4) Cooling system may need service

setpoint is set too low

2) Delta “On” for heating is set too high

3) Minimum off time delay is being enforced

4) Heating system may need service

1) Fan delay time has not expired

2) System is not operating properly

1) Smart continuous fan (SCF) is enabled and the indoor humidity is higher than the cooling target RH (SCF will be displayed on fan mode button)

2) System is not operating properly

2) Check transformer for 24VAC output

3) Check for broken or shorted thermostat wire

1) Calibrate indoor temperature sensor

2) Relocate the control away from any competing air sources or redirect the air sources away from the control

1) Intended operation; if objectionable, change the delta “Off” to 0 degrees

2) Intended operation: if objectionable, disable cooling overshoot or raise cooling target RH

3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu

Intended operation; if objectionable, change control response settings in the Installers Settings, Comfort Settings Menu

1) Select the correct system mode and/or lower the setpoint

2) Change the delta “On” setting for cooling mode

3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu

4) Check/repair system

1) Select the correct system mode and/or raise the setpoint

2) Change the delta “On” setting for heating mode

3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu

4) Check/repair system

1) Wait one minute for blower delay to end, then recheck register/grills

2) Check/repair system

1) Intended operation; if objectionable, change fan mode to “Auto”

2) Check/repair system

1) Intended operation; if objectionable, disable SCF or raise cooling target humidity

2) Check/repair system

FCC NOTICE

INFORMATION TO USER

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for Class B Digital Device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures.

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and receiver

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

• Consult the dealer or an experienced radio/TV technician for help

Any changes or modications not expressly approved by the party responsible for compliance could void the

user’s authority to operate the equipment.

IC Notice

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio

exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne

doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage

radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.

Trane 6200 Troup Highway Tyler, TX 75707 www.trane.com

Literature Order Number 18-HD82D1-1B-EN File number 18-HD82D1-1B-EN Supersedes New Date 08/30/19

Trane has a policy of continuous product and product data improvement and it reserves the right to change

design and specications without notice.

Trane NEXIA XR724 User's guide and installation instructions

Specifications and Main Features

Frequently Asked Questions

User Manual