Trane XT300C User Manual

® U.S. Registered Trademark
Copyright © American Standard Inc. 1999
INSTALLER'S GUIDE
XT300C Deluxe Programmable
Heat-Cool Thermostat
18-HD25D1-3
APPLICATION
The XT300C Deluxe Programmable Heat-Cool Thermostat provides electronic control of 24 Vac single-stage heating and
cooling systems. Refer to Table 1 for a general description of the thermostat. This thermostat is powered by the heating system
only. Refer to Wiring for information on wiring for cooling-only applications.
Table 1. Description of XT300C
RECYCLING NOTICE
If this thermostat is replacing a thermostat that contains
mercury in a sealed tube, do not place your old
thermostat in the trash.
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of the old thermostat.
INSTALLATION
When Installing this Thermostat...
1. Read these instructions carefully. Failure to follow the
instructions can damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out the product operation.
Location
Install the thermostat about 5 ft (1.5m) above the floor in an
area with good air circulation at average temperature. See
Fig. 1. Avoid installing the thermostat where it can be affected
by the following:
• Drafts, or dead spots behind doors and in corners.
• Hot or cold air from ducts.
• Radiant heat from sun or appliances.
• Concealed pipes and chimneys.
• Unheated (uncooled) areas such as an outside wall
behind the thermostat.
Wallplate Installation
Position wallplate horizontally on the wall or on a 2 in. x 4 in.
wiring box.
1. Position and level the wallplate for appearance only (the
thermostat will function properly even when
not level).
Fig. 1. Typical location of thermostat.
5 FEET
[1.5 METERS]
YES
NO
NO
NO
M17106
69-1212-1
Model System Changeover
System
Selection
Fan
Selection Comments
XT300C Heat-Cool Automatic Heat-Off-Cool-
Auto
On-Auto System and fan selections are done by
keyboard.

Trane XT300C Specifications

General

Wi-Fi Enabled	No
Stages	1 Heat/1 Cool
Display	LCD
Power Source	24V AC
Hold Feature	Yes
Temperature Range	45°F to 90°F (7°C to 32°C)

Summary

APPLICATION

RECYCLING NOTICE

Notice regarding recycling and proper disposal of mercury-containing thermostats.

INSTALLATION

Instructions for installing the thermostat, including wallplate and location.

WIRING

WARNING

Safety warning about electric shock and equipment damage during wiring.

Cooling-Only Applications

Notes on operating the thermostat in cooling-only systems.

Mounting Thermostat

Steps for attaching the thermostat unit to the installed wallplate.

Using Thermostat Keys

SETTINGS

System and Fan Settings

How to configure system (Heat/Cool/Auto) and fan (On/Auto) settings.

Temperature Settings

Details on default program temperature settings for different periods.

INSTALLER SETUP

Installer Setup Procedure

Step-by-step guide to configuring thermostat settings for specific systems.

CAUTION

Warning about potential equipment damage with electric heat systems.

Installer Setup Options

Programming and Recovery Settings

Configure programming type, adaptive recovery, and system changeover.

Temperature Display and Clock Format

Set display units (°F/°C) and clock format (12/24 hour).

Fan Operation and Cycle Control

Adjust fan operation timing, heating/cooling cycle rates.

Installer Setup Options (Continued)

Minimum Off Time and Temperature Range

Configure minimum equipment off time and temperature range stops.

Temperature Display Adjustment

Adjust how the thermostat displays room temperature relative to actual.

Minimum Off Time (Heat/Cool)

Set minimum off time for equipment during heating and cooling cycles.

Installer Setup Options (Continued)

Cooling Droop and Programming

Configure cooling droop and programming type (7-day or 24-hour).

Setting Current Day and Time

Set Current Day/Time

Steps to set the current day and time on the thermostat.

Daylight Savings Time

Procedure to set Daylight Savings Time if applicable.

INSTALLER SELF-TEST

CAUTION

Warning about potential equipment damage from rapid compressor cycling.

Self-Test Procedures

Detailed steps for performing heating, cooling, fan, and Comfort-R self-tests.

Installer Self-Test Options (Continued)

Keyboard Operation Self-Test

Testing individual keys and their corresponding test numbers.

Device Information Self-Test

Accessing thermostat information like software revision and model ID.

DEVICE INFORMATION SELF-TEST

Accessing Thermostat Information

Steps to view software revision, production date, and model identification.

CHECKOUT

Outdoor Temperature Sensor

Notes on using and reading the optional outdoor temperature sensor.

TROUBLESHOOTING GUIDE

Display and Power Issues

Troubleshooting steps for display not showing, incorrect display, or no power.

Temperature Setting Issues

Resolving problems with temperature limits and setpoint range configuration.

TROUBLESHOOTING (CONTINUED)

Heating and Cooling Operation Issues

Diagnosing problems with heating/cooling not coming on, cycling, or system indicators.

Outdoor Temperature and Filter Issues

Troubleshooting outdoor temperature display and filter expiration warnings.

System Indicator and Time Display Issues

Resolving issues with system indicators and time display errors (EEE).