WARNING
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
This information is intended for use by individuals possessing adequate backgrounds of electrical, mechanical, HVAC and experience. Any attempt to repair an HVAC system 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.
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.
Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazards.
Do not short out terminals on the gas valve or primary control to test. Short or incorrect wiring will burn out the thermostat and could cause personal injury and/or property damage.
CAUTION
To prevent electrical shock and/or equipment damage, disconnect the electric power to the system at the main fuse or circuit breaker box until installation is complete. To prevent compressor and/or property damage, if the outdoor temperature is below 55°F, DO NOT operate the cooling system. Do not allow the compressor to run unless the compressor oil heaters have been operational for six hours and the system has not been operational for at least five minutes.
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury, and place it in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www.thermostat-recycle.org for a location to send the product containing mercury.
2. Product Specifications | |
SPECIFICATION DESCRIPTION | |
Product Models | TCONT103 |
Product | XR 103 |
Size | 3-7/8” x 5-1/2” x 1-3/16” (HxWxD) |
Configurations | Heat Pump |
Maximum Number of Stages | 2H/1C |
Operating Temperature | 32°F to 105°F (0 to +41°C) / 90% RH Non Condensing |
Shipping Temperature Range | -40 to 150°F (-40 to +65°C) |
Input Power (DC) | Two 1.5V AAA Alkaline |
Input Power (AC) | 20-30 VAC, NEC Class ll, 50/60 HZ |
Terminal Load | 1.0A terminal/1.5A combined |
Wire Usage | 18 AWG |
System Modes | Heating, Cooling, Off, Emergency Heat |
Fan Modes | Auto, On |
Indoor Temperature Display Range | 45°F to 90°F |
*On every application, 24VAC loads should be reviewed to be sure the indoor unit control power transformer is adequately sized.
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 are to 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.
The 103 is a non-programmable HP 2H/1C thermostat with a digital display for use with HP applications only.
The 103 is designed for installation in climate-controlled living spaces. Place the unit in a central location with good circulation. For proper temperature sensing, avoid exposing the 103 to heat radiated from lamps, sunlight, fireplaces or any other radiant heat source.
Avoid locations close to windows, behind doors, or alcoves with poor air circulation, adjoining outside walls, or doors that lead to the outside.
Select a location that prevents the 103 from being directly exposed to air currents from supply registers or ceiling fans. Mount the Control on a section of the interior wall that does not contain hot or cold water pipes or ductwork.
Follow these steps to mount the 103 Control to the wall.
Before you begin using your thermostat, you should be familiar with its features, display and the location/operation of the thermostat buttons and switches.
The Thermostat Buttons and Switches
NOTE
To prevent static discharge problems, touch the side of the thermostat to release static build-up before touching any keys.
If at any time during testing your system does not operate properly, contact a qualified service person.
If your system does not have a G terminal connection, skip to Heating System.
EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer back-up heat only.
configuration Menu
The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements. To enter the configuration menu, with the SYSTEM switch in the OFF position,
Configuration Menu
Step | Press Button(s) | Displayed (Factory Default) | Press or to select: |
1 | Set SYSTEM switch to OFF | ||
2 | for at least 2 seconds | FA (ON) | OFF |
3 | CL (ON) | OFF | |
4 | 0 HI (0) | 3 LO TO 3 HI | |
5* | dL (ON) | OFF | |
6 | Move SYSTEM switch from OFF | Return to normal operation |
* Not available on earlier models
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by pressingn,
Batteries
For optimum performance, we recommend replacing batteries once a year with fresh “AAA” alkaline batteries.
SYMPTOM | POSSIBLE CAUSE | CORRECTIVE ACTION |
No Heat/ No Cool/ No Fan (common problems) | 1. Blown fuse or tripped circuit breaker. 2. Furnace power switch to OFF. 3. Furnace blower compartment door or panel loose or not properly installed. | Replace fuse or reset breaker. Turn switch to ON. Replace door panel in proper position to engage safety interlock or door switch. |
No Heat | 1. Pilot light not lit. 2. System Switch not set to HEAT. 3. Loose connection to thermostat or system. 4. Furnace Lock-Out Condition. Heat may also be intermittent. 5. Heating system requires service or thermostat requires replacement. | Re-light pilot. Set System Switch to HEAT and raise setpoint above room temperature. Verify thermostat and system wires are securely attached. Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently contact the furnace manufacturer or local service person for assistance. Diagnostic: Set System Switch to HEAT and raise the setpoint above room temperature. WIthin a few seconds the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a service person to verify the heating is operating correctly. |
No Cool | 1. System Switch not set to Cool. 2. Loose connection to thermostat or system. 3. Cooling System requires service or the thermostat requires replacement. | Set System Switch to COOL and lower setpoint below room temperature. Verify thermostat and system wires are securely attached. Same procedure as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to a five-minute delay before the thermostat clicks in Cooling. |
Heat, Cool or Fan Runs Constantly | 1. Possible short in wiring. 2. Possible short in thermostat. 3. Possible short in heat/cool/fan system. 4. Fan Switch set to Fan on. | Check each wire connection to verify they are not shorted or touching together. No bare wire should stick our from under terminal screws. Try resetting the thermostat as described above. If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat. |
Furnace (Air Conditioning) Cycles Too Fast or Too Slow (narrow or wide temperature swing) | 1. The location of the thermostat and/or the size of the Heating (Cooling) System may be influencing the cycle rate | Digital thermostats normally provide precise temperature control and may cycle faster than some older mechanical models. A faster cycle rate means the unit turns on and off more frequently but runs for a shorter time so there is no increase in energy use. If you would like to increase the cycle time, clip Jumper W-905 as mentioned in the instructions for Hydronic Heating Systems. It is not possible to shorten the cycle time. If an acceptable cycle rate is not achieved as received or by clipping W-905 contact a local service person for additional suggestions. |
Thermostat Setting and Thermometer Disagree | 1. Thermostat thermometer setting requires adjustment. | The thermostat thermometer can be adjusted +/-3 degrees. See Temperature Display Adjustment in the Operation section. |
Blank Display and/ or Keypad Not Responding | 1. Voltage spike or static discharge. | Use the Reset Operation listed above. |
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.
© 2020 Trane
18-HD55D1-1C-EN (09 Sep 2020)
Supersedes 18-HD55D1-1B-EN (31 July 2019)
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