Trane XR103 Non-Programmable Thermostat
Pub. No. 18HD55D1-1C-EN 09/2020
Part No. 37-7790003
3
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 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 wire to be grounded at indoor unit chassis ground only. Shielded cable may be required if the above wiring guidelines
cannot be met. Ground only one end of the shield to the system chassis.
2. Product Specifications
3. General Information
3.1 Overview
The 103 is a non-programmable HP 2H/1C thermostat with
a digital display
for use with HP applications only.
3.2 Contents
— 1-Thermostat
— 2-Phillips slotted head mounting screws
— 2-Nylon Drywall Anchors
— 1-Installation Guide / User Guide
4. Installation
4.1 Location
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, sun light, 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 interior wall that does not
contain hot or cold water pipes or duct work.
FIGURE 1. PLACEMENT OF THE 103
Incorrect
Placement
Ceiling Fan
Natural heat
dissipation
from the
Thermostat
Onboard
Thermistor
5 FEET
Optimum
Zone
2 FEET
Correct
Placement
Heat from the screen may be trapped
within the body of the 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.
4.2 Mounting / Installation
Follow these steps to mount the
103
Control to the wall.
1.
Turn OFF all power to heating and cooling equipment.
2.
If an existing thermostat is being replaced:
a. Record color and terminal marking of each wire.
b. Disconnect the wires from the existing thermostat
being careful not to allow them to fall back into the wall.
c. Remove the existing thermostat from the wall.