NOTE: Use an 18-gauge color-coded thermostat cable for proper wiring. Shielded cable is not typically required.
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. All unused thermostat wires should be grounded at indoor unit chassis ground only. The shielded cable may be required if the above wiring guidelines cannot be met. Ground only one end of the shield to the system chassis.
WARNING
This information is intended for use by individuals possessing adequate backgrounds in electrical and mechanical experience. Any attempt to repair a central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
WARNING
LIVE ELECTRICAL COMPONENTS! During the installation, testing, servicing, and troubleshooting of this product, it may be necessary to work with live electrical components. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury.
Specification | Description |
Model | THUI2360A200U |
Product | UX360 Smart Thermostat |
Size | 7.125” x 4.725” x 1” (WxHxD) |
Configurations | Heat Pump, Heat/Cool, Dual Fuel, Heat Only, Cooling Only |
Maximum Number of Stages | 5 Stages Heat, 2 Stages Cooling |
Storage Temperature | -40°F to +167°F, RH non-condensing |
Operating Temperature | 32°F to 104°F, RH non-condensing |
Input Power* | 24VAC from HVAC System (Range: 18-30 VAC) |
Power Consumption | 2W (typical) / 5W (max) |
Wire Usage | 18 AWG NEC approved control wiring |
Communications | Controller Area Network (CAN bus) 4-wire connection |
System Modes | Auto, Heating, Cooling, Off, Emergency Heat |
Fan Modes | Auto, On, Circulate |
Cooling Setpoint Temperature Range | 60°F to 99°F, 1°F resolution |
Heating Setpoint Temperature Range | 55°F to 90°F, 1°F resolution |
Outdoor Temperature Display Range | Ambient Temperature: -40°F to 141°F (including dead band), -38°F to 132°F (excluding dead band) External Ambient Temperature: up to 136°F |
Indoor Humidity Display Range | 0% to 100%, 1% resolution |
Minimum Cycle Off Time Delay | Compressor: 5 minutes, Indoor Heat: 1 minute |
* On every application, 24VAC loads should be reviewed to be sure the indoor unit control power transformer is adequately sized.
Download the Trane Diagnostics mobile app from the Google Play™ Store or App Store®.
To take advantage of the full range of features on the UX360, the SC360 System Controller should be connected to the Internet using a wireless connection.
Refer to the UX360 User Guide for additional information on connecting to the Internet.
Follow these steps to mount the UX360 to the wall. See Figures 2 and 3.
Troubleshooting steps | Description |
Bus Idle | |
Expected Measurement | 2 – 4 VDC between DH and GND 2 – 4 VDC between DL and GND |
Voltage measured from DH to DL will vary depending on bus traffic | |
Resistance Between DH and DL1 | |
Appropriate range can vary depending on the communicating equipment installed on the system | |
Expected Measurement | 60 +/- 10 ohms can be expected when the SC360, communicating indoor unit and communicating variable speed outdoor unit are installed. |
90 +/- 10 ohms can be expected with no communicating outdoor unit installed | |
Lower than appropriate range | Possible short on the bus between DH and DL |
Higher than appropriate range | Possible open circuit on the bus |
Resistance Between DH and GND2 | |
Expected Measurement | 1 Mohms or greater |
Certain menu selections may or may not be present depending on other menu settings and equipment installed.
Menu Selection | Options | Description |
System Name | Manual keypad entry | Enter a custom name for the system. |
Dealer Code |
Manual keypad entry | When the system is connected to Trane Home, a Dealer Code can be entered to populate the dealer’s contact information and logo. The code is the dealer’s registered phone number listed on ComfortSite. A dealer can upload a logo by selecting Tech Support from the Home page of ComfortSite, then select Dealer Logo Management and upload logo. File size should not exceed 3MB. |
Factory System Restore | Full Restore | Erases all user and installer settings and restores the system to factory default settings. |
Partial Restore | HVAC configuration will be set to factory default values. Zoning configuration, indoor sensor settings, and user settings will be retained. After the partial restore, HVAC configuration may need to be reconfigured. |
Sub Menu | Menu Selection | Options [Default] | Description |
General System Operation | Cooling Sensible Load Value (Btu/h) | [0] Btu/h | Range of values is based on system configuration. |
Heating Sensible Load Value (Btu/h) | [0] Btu/h | Range of values is based on system configuration. | |
Aggressive Recovery by Temp Error |
Enabled/[Disabled] | Select whether to disable the 15-minute staging inhibit during heating mode when Temp Error is greater than 2°F. Cannot be enabled when Heating Aggressive Recovery by ODT is enabled. | |
Heating Aggressive Recovery by ODT |
Enabled/[Disabled] | Select whether to require/[bypass] outdoor temperature to fall below the selected Heating Aggressive Recovery Setting in order to disable the 15-minute staging inhibit during heating mode when Temp Error is greater than 2°F. Cannot be enabled when Heating Aggressive Recovery by Temp Error is enabled. Outdoor temperature sensor must be connected and enabled to allow this setting to be selected. |
General System Operation | Heating Aggressive Recovery Setting (°F) | 0°F -70°F [40°F] | Select the outdoor temperature for Heating Aggressive Recovery. |
Smart Control Fan Enable Status | Enabled/[Disabled] | Select to enable or disable Smart Continuous Fan. | |
System Controller | SC360 Installed in Conditioned Space | Yes/[No] | Enable if the SC360 was installed in a conditioned space and can be used as an indoor temperature and humidity sensor. |
Indoor Heat | Heater Type | [None]/Electric/ Hydronic | Select the type of indoor unit installed. Value is pre-populated for communicating equipment. |
Heater Size | Electric: [Empty List]/ 25KW, 1-Phase/ 20KW, 1-Phase/ 15KW, 3-Phase/ 15KW, 1-Phase/ 10KW, 3-Phase/ 10KW, 1-Phase/ 8KW, 1-Phase/ 4KW, 1-Phase/ 5KW, 1-Phase Hydronic: 100Kbtu/80Kbtu/ 70Kbtu/50Kbtu |
Select the size of the indoor unit based on tonnage and heater type. Options vary depending on heater type. Value is pre-populated for communicating equipment. | |
Heater Model Number | [NOMODELNUM] | Value is pre-populated based on heater size, but can also be manually configured. | |
Heater Serial Number | [NOSERNUM] | Enter the 10-digit serial number of the indoor unit. | |
Cycles Per Hour | 2-6 CPH [5] | ||
Electric Heat Airflow | [Low]/Med/High | ||
Blower On Delay | No delay/15/30/45/[60] seconds | Select to enable or disable the blower on delay in hydronic heating. | |
Blower Off Delay | No delay/30/[50]/70/90 seconds | Select to enable or disable the blower off delay in hydronic heating. | |
Compressor Operation | Minimum System Speed | [Factory]/ 30%/40%/50% | |
Compressor Cooling | Cycles Per Hour | 2-6 CPH [3] | |
Blower Off Delay | [No Delay]/Auto/ 30 seconds | Select to enable or disable the blower off delay in compressor cooling. | |
Blower On Delay | [No Delay]/Auto/ 30 seconds | Select to enable or disable the blower on delay in compressor cooling. | |
Minimum Indoor Coil Temp (°F) | 28°F -60°F [30°F] | ||
Maximum Indoor Coil Temp (°F) | 28°F -60°F [55°F] |
Sub Menu Menu Selection Options [Default] Description | |||
Compressor Cooling | System Control | More Efficient/Efficient/ Balanced/ Comfort/ [More Comfort] | |
Minimum CFM Per Ton | 200-500 [250] | ||
Maximum CFM Per Ton | 200-500 [500] | Minimum value based on Minimum CFM Per Ton setting. Maximum value based on Comp Cooling Maximum Airflow setting. | |
Cooling Maximum Airflow (CFM) | [0] | Range varies per system settings. | |
Compressor Heating | Cycles Per Hour | 2-6 CPH [3] | |
Blower Off Delay | [No delay]/30/60/90 seconds | ||
Blower On Delay | [No delay]/15/30 seconds | ||
Heating Maximum RPM | [High]/Med/Low | ||
System Control | [Comfort]/Efficiency | ||
Comp Heat CFM Per Ton | 290-450 [400] |
Sub Menu Menu Selection Options [Default] Description | |||
Indoor Heat | Auxiliary Heat Lockout | Enabled/[Disabled] | Enable auxiliary heat lockout (10° minimum separation when enabling auxiliary heat lockout and compressor heat lockout). |
Auxiliary Heat Lockout Temp (°F) | 32°F -70°F [45°F] | Select an outdoor temperature to prevent auxiliary heat above the selected outdoor temperature. | |
Compressor Heating | Compressor Heat Lockout | Enabled/[Disabled] | Enable compressor heat lockout (10° minimum separation when enabling auxiliary heat lockout and compressor heat lockout) |
Lockout Temperature (°F) | 5°F -70°F [30°F] | Select an outdoor temperature to prevent compressor heating below the selected outdoor temperature. | |
Outdoor Unit | Power Factor Correction | Enabled/[Disabled] |
Sub Menu | Menu Selection | Options [Default] | Description |
Outdoor Unit | Reduce Electrical Interference | Enabled/[Disabled] | |
Defrost Termination Temp (°F) | [Factory]/Medium/High |
Available accessory menu selections will vary based on the accessory type.
Sub Menu | Menu Selection | Options [Default] | Description |
Accessory 1 & 2 Input | Accessory Type | [None], Air Cleaner, Powered/Bypass, Steam, Ext Dehum, Ventilator | Select the accessory type. |
Humidifier Action | [With Active Heat Call], Without Active Heat Call | Disabled for Air Cleaner accessory. | |
Airflow During Humidifier Only Mode | 35%-100% [50%] | Select the desired airflow when the humidifier is operating without an active call for heat. | |
Dehum Type | [With Cool]/Stand alone | Defaulted to [With Cool] for Ext Dehum accessory. | |
Dehum Fan Action | [Force Fan]/Normal | ||
Minimum Ventilation Run Time (mins) | 1-60 [5] | ||
Ventilator Fan Action | [Ventilate With Blower]/ Ventilate Without Blower | ||
Outdoor Temperature Ventilation Override | [Disabled]/Enabled | ||
Max Outdoor Temperature | 80°F – 110°F [85°F] | ||
Min Outdoor Temperature | -10°F to 50°F [0°F] | ||
Accumulate Overridden Run Time | [Disabled]/Enabled | ||
Accumulate Period | [4 hrs – Recover based on OD Conditions]/4 hrs – Recover to maintain Min Ventilation/24 hrs – Recover based on OD Conditions/24 hrs – Recover to maintain Min Ventilation | ||
Humidifier Control | [RH Control]/Frost Control | Not available for Ext Dehum accessory. |
Sub Menu | Menu Selection | Options [Default] | Description |
ID External Switch Input 1 & 2 | Accessory Type | [None], Condensate- Cooling, Smoke Detector | Select the accessory type. |
Disable Compressor Cooling | [Disabled]/Enabled | Enabled by default for Condensate- Cooling and Smoke Detector accessories. | |
Disable Compressor Heating | [Disabled]/Enabled | Enabled by default for Smoke Detector accessory. | |
Disable Indoor Heating | [Disabled]/Enabled | Enabled by default for Smoke Detector accessory. | |
Disable Fan Circulation | [Disabled]/Enabled | Enabled by default for Smoke Detector accessory. | |
Limit Compressor Speed | [Disabled]/Enabled | ||
Outdoor Load Shed | Accessory Type | [None], Load Shed, Generator Backup | |
Disable Compressor Cooling | [Disabled]/Enabled | Enabled by default for the Load Shed accessory. | |
Disable Compressor Heating | [Disabled]/Enabled | Enabled by default for the Load Shed accessory. | |
Disable Indoor Heating | [Disabled]/Enabled | Enabled by default for the Load Shed and Generator Backup accessories. | |
Disable Fan Circulation | Disabled/[Enabled] | ||
Limit Compressor Speed | [Disabled]/Enabled |
View, edit and assign temperature and humidity sensors for the system.
A list of all available sensors for the system will be displayed at the top of the Indoor Sensor Setup screen. Once a sensor has been assigned, it will be removed from the list of available sensors. The sensors from the communicating equipment will show up in the list automatically, but the wireless sensors must be added one by one.
Supported Indoor Sensors:
NOTE: The SC360 will only be included as an available sensor if it has been configured and installed in a controlled space. This setting can be modified from Technician Access > Configuration > Climate Control > SC360 System Controller.
Select a specific sensor to view more details about the sensor and to assign it to the system. The details displayed may be different for different sensor types.
Sensor Details May Include:
To assign a sensor to the system:
To unassign a sensor:
ZSENS930 wireless sensors must be added to the system one at a time.
Follow these steps to add a new wireless sensor:
ZSENS930 wireless sensors must be removed from the system one at a time. The sensors must be online to be removed by the steps listed below.
Follow these steps to remove a wireless sensor:
When the UX360 is connected to the subbase, the thermostat initiates an 80 to 200-second power-up sequence. During the powerup sequence, the screen will remain dark for approximately 20 seconds and will then display ‘Initializing…’ above a progress bar for up to three minutes.
Reminders can be enabled to send a notification when the configured reminder expires. A message will be displayed across the top of the display. The remainder is time-based and can be configured on a system run time or calendar days. Reminders can be configured for humidifiers, filters, ventilation systems, UV lights and HVAC system maintenance. The type of reminders available are based on the accessories enabled in the installer settings.
To take full advantage of the features and benefits of the UX360 Smart Thermostat, the latest software revision should be installed. An Internet connection to the SC360 SystemController is required for software updates. When the SC360 is connected to the Internet, software updates to the installed communicating equipment will occur automatically and do not require user intervention.
The system has five System Modes that can be selected:
Fan Mode
The system has three fan mode options:
Certain tests may or may not be present depending on other menu settings and equipment installed. Select the Start button to run each test.
Menu Selection | Options | Description |
Test Blower | 300-1580 CFM | Energize indoor blower at the selected CFM. The range of values varies per Air Handler model. |
Test Compressor Cool | Minimum-100% | Adjust % demand for compressor operation. The indoor blower will operate at the speed required for the selected % demand. The range of values is based on system configuration and ambient conditions. |
Test Compressor Heat | Minimum-100% | Adjust % demand for compressor operation. The indoor blower will operate at the speed required for the selected % demand. The range of values is based on system configuration and ambient conditions. |
Test Indoor Heat | Stage 1/ Stage 2/ Stage 3 | Energize the selected stage of indoor heating. The indoor blower will operate at the speed required for the selected stage. The indoor heat test will run at maximum airflow for hydronic heat. |
Charge Mode – Cooling | N/A | Energizes system to set/verify system charge. Use sub-cooling tables in the outdoor Service Facts to determine correct charge levels. |
Check Charge Mode – Heating | N/A | Energizes the system to compare actual performance to typical performance. Use the pressure curves in the outdoor unit Service Facts for comparison. |
Pump Down mode – Cooling | N/A | Pulses the latching switchover valve to the cooling position and runs at full compressor speed. Outdoor EEV will remain open and indoor EEV (if installed) will continue to control superheat. |
Pump Down Mode – Heating | N/A | Pulses the latching switchover valve to the heating position and runs at full compressor speed. Outdoor EEV will control superheat and indoor EEV (if installed) will remain open. |
Test Aux Relay | N/A | Enabled when Aux1/Aux2 accessories are configured for the system. Installed accessories will be displayed. |
Certain tests may or may not be present depending on other menu settings and equipment installed.
Select the Start button to run each test.
The Equipment summary table is based on the installed communicating equipment and differs from system to system.
The following information per device is displayed:
The UX360 displays two sets of alerts:
Critical
Major
Normal
Symptom | Possible Causes | Action |
UX360 displays an alert on the screen | A critical or major alert is present. | Navigate to the Alerts screen for a problem description and possible cause. Menu > System Info > Alerts |
The display will not come on | Loss of 24VAC between R & B at the UX360 Control. | 1. Check wiring between R & B. 2. Check the transformer for 24VAC output. 3. Check for broken or shorted thermostat wires. |
The indoor temperature display is incorrect | 1. Indoor temperature display needs calibration. 2. Surrounding air flow affecting the sensed temperature of the UX360. | Calibrate the temperature sensor from the UX360 menu. |
The indoor humidity display is incorrect | The indoor humidity display needs calibration. | Calibrate the humidity sensor from the UX360 menu. |
The heating will not come on | 1. System mode is not set to Heat/ Auto or setpoint is set too low. 2. Minimum off-time delay is being enforced. 3. Heating system may require service. | 1. Set mode to heat and raise the setpoint above the room temperature. 2. Wait 5 minutes and recheck the heating equipment. 3. Check/repair the system. |
Symptom | Possible Causes | Action |
Cooling will not come on | 1. System mode is not set to Cool/ Auto or the setpoint is too high. 2. Minimum off-time delay is being enforced. 3. Cooling system may require service. | 1. Set mode to cool and lower the setpoint below the room temperature. 2. Wait 5 minutes and recheck the cooling equipment. 3. Check/repair the system. |
Heating or Cooling is displayed, but no warm or cool air is coming from the registers | 1. Fan delay as the heating or cooling equipment turns on. 2. Equipment is not working properly. | 1. Wait a minute for blower delays and recheck registers. 2. Check/repair the system. |
The fan runs all the time | 1. Fan mode is set to On, Circulate, or Clean mode. 2. There is a failure in the indoor unit. | 1. Check UX360 settings to see if fan is set to On, Circulate, or Clean mode. 2. Check the indoor unit for failures (such as tripped heating limit). |
“+” symbol appears on Home Screen beneath Indoor Temperature readout | Both compressor heat and indoor heat are called simultaneously | No action is required. The symbol is for informational purposes only. |
The fan is set to ON but not running | 1. Smart Control Fan feature has been engaged. 2. Blower motor is not functioning. | 1. If indoor humidity is higher than the desired setpoint, the blower will cycle off with the equipment. A humidity icon will be displayed on the Fan Mode button when the blower operation is being inhibited due to high humidity. 2. Check/repair the system. |
Cooling or Heating cycles too fast or too slow (narrow or wide temperature swings) | 1. Check the location of the UX360 for drafts. 2. Cycles per hour or aggressive recovery is improperly set. | 1. Seal air leaks behind UX360. Relocate UX360 or apply a remote indoor temperature sensor. 2. Adjust cycle rates and aggressive recovery features in the advanced installer setup. |
A heat pump is not turning on; only the furnace or electric heat strips are running | 1. Outdoor temperature is below compressor lockout temperature setting. 2. Compressor heating lockout is enabled and the outdoor temp sensor is out of calibration or failed. 3. The outdoor unit is not reporting. |
1. Adjust the compressor lockout temperature setting if desired. 2. Check/repair outdoor sensors or wiring. 3. Check the communication status of the outdoor unit. |
Cannot change system mode to the desired setting | The equipment is not configured properly. | Check the Configuration screen to ensure the equipment is properly configured. |
The screen does not respond properly to a button press | 1. Internal UX360 hardware failure. 2. Screen Lock has been enabled. | 1. Remove UX360 from the sub-base and reset. 2. Press and hold the Menu button for 5 seconds to override the screen lock. |
Symptom | Possible Causes | Action |
The screen goes blank after a period time of inactivity | Screen Saver mode set to “Black” which turns off the screen backlight after a user-selected period of inactivity. | Normal operation. User may change the screen saver from “Black” to “Indoor Temperature” or increase the time before the screen saver is activated. |
The time set on UX360 changes every 24 hours. | UX360 is connected to Trane Home and the time zone set from the Trane Home account is incorrect. | Correct the time zone from the Trane Home account. |
Trane – by Trane Technologies (NYSE: TT), a global climate innovator – creates comfortable, energy-efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or tranetechnologies.com.
Trane has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.
Representative-only illustrations are included in this document.
18-HD98D1-1B-EN 24 Feb 2022
Supersedes 18-HD98D1-1A-EN (August 2021)
Download Manual:
Trane Link UX360 Smart Thermostat Installation Guide
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