Trane TCONT402AN32DA User manual

Fan Mode
Filter/OD
$
XR402
Comfort
Control
TCONT402AN32DA
Comfort Control
Owner’s Manual
Pub. No. 22-5209-01
Trane
6200Troup Highway
Tyler,Texas 75711
For more information contact
your local dealer (distributor)

Page - 2
Pub. No. 22-5209-01
Table Of
Contents
Page - 2
Fan Mode
Filter/OD
$
Energy Savings Page 10.
Up Arrow - Increase temperature Page 5.
Down Arrow - Decrease temperature Page 5.
Filter Reminder / Outdoor Temperature Page 7-8.
Fan ON / AUTO Page 6.
Mode: Cool, Heat, Auto, Off, EMHeat Page 4.
Comfort Information Drawer Page 16.
Page 3 Introduction
4-10 Keypad functions
12-16 Features
17 Factory settings
18-19 Comfort Control Setup
20-21 Troubleshooting
22-23 Warranty
Page - 23
Pub. No. 22-5209-01
Some states do not allow limitations on how long an implied warranty last or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Parts will be provided by our factory organization or an authorized service organization in your area. All you need to do is look us up in the Yellow Pages or write to the address given below. If you wish further help or information concerning this warranty, contact: Trane Troup Highway Tyler, Texas 75711-9010 Attention: Manager, Field Operations Excellence

Page - 3
Pub. No. 22-5209-01
Introduction Congratulations on the purchase of your new Trane XR402 Comfort Control! Your
XR402 Comfort Control combines the latest digital control technology with intuitive functions that make this control simple to understand and easy to operate. You’ll enjoy lower utility bills at the touch of a button with the energy efficiency features built into your XR402 Comfort Control. Your comfort settings are automatically stored in the XR402 Comfort Control’s memory eliminating the need for battery backup in the event of power loss. Simply follow the steps in this instruction manual and begin enjoying the benefits of your new Trane XR402 Comfort Control.
Page - 22
Pub. No. 22-5209-01
Warranty
Limited Warranty Low Voltage Comfort Control This warranty is extended by Trane to the original purchaser and to any succeeding owner of the real property to which the Comfort Control is originally affixed, and applies to
products purchased and retained for use within the U.S.A. and Canada. If any part of your Comfort Control fails because of a manufacturing defect within 5
years from the date of the original purchase, Warrantor will furnish, without charge, a new Comfort Control. Any local transportation, related service labor and diagnosis calls are not included. This Warranty does not cover failure of your Comfort Control if it is damaged while in
your possession or if the failure is caused by unreasonable use. In no event shall Warran- tor be liable for incedental or consequential damages. In no event shall any implied warranty of merchandise or fitness for use exceed the terms of the limited warranty stated above.

Page - 4
Pub. No. 22-5209-01
Keypad
Functions MODE
- Pressing this key changes the system mode to Heat, Cool, Automatic or Off.
A border will appear around the mode on the display to show the system mode you’ve selected.
Mode
Mode
Page - 21
Pub. No. 22-5209-01
Table 2 Troubleshooting(Continued)) Symptom Possible Cause Action
Heating will not come on.
1. System Mode not set to Heat.
2. Minimum off time delay being enforced. 3. Loose connection to control or system. 4. Heating system requires service or
control requires replacement.
1. Set Mode to heat and raise the setpoint above room temperature.
2. If heating does not come on within 5 minutes, Check Heating. 3. Check - Repair connections. 4. Repair system / Replace control.
Cooling will not come on.
1. System Mode not set to Cool.
2. Minimum off time delay being enforced 3. Loose connection to control or system. 4. Cooling system requires service or
control requires replacement.
1. Set Mode to cool and lower the setpoint below room temperature.
2. If cooling does not come on within 15 minutes, contact servicer. 3. Repair connections. 4. Repair system / Replace control.
Cool ON or Heat ON is displayed, but no warm or cool air is coming
from the registers.
1. The heating equipment turns on the
fan when the furnace has warmed up to a setpoint.
2. Heating or cooling equipment is not
operating.
1. Wait one minute after Heat ON is displayed
and then check the registers.
2. Check Heating and Cooling system.
Control does not respond to
keypad presses.
1. "Keypad locked" is displayed on LCD.
2. Keypad failure.
1. Unlock keypad - press Up+Down arrow together until "Keypad locked"
appears.
2. Replace Control.
Fan does not operate properly in
heat or cool mode.
1. Incorrect wiring.
2. Heating or cooling equipment inoperative.
1. Correct wiring.
2. Repair system.
Fan runs all the time. 1. Fan mode set to ON.
2. Shorted control wiring.
1. Set fan mode to AUTO.
2. Check / Repair wiring.
Cooling cycle too fast or too slow.
(Narrow or wide temperature swing).
The location of the control and/or the size of the
cooling system may be influencing the cycle rate. Verify cycle rate adjustment Step 20 & 22.
Heating cycle too fast or too slow.
(Narrow or wide temperature swing).
The location of the control and/or the size of the
heating system may be influencing the cycle rate Verify cycle rate adjustment Step 24, 26, 28, 30 & 32

Page - 5
Pub. No. 22-5209-01
UP / DOWN Arrow
- Use these keys to raise or lower the Heat or Cool Setting.
- The first key press turns on the back lighting and a border around the setting to be adjusted without changing the setting.
- Pressing the Up or Down arrow again will raise or lower the setting that has the border around it.
- If you press and hold the Up or Down arrow, the temperature setting will advance rapidly. - When the control is set to Auto mode, pressing the Mode key once changes the position of the border to heat or cool.
Page - 20
Pub. No. 22-5209-01
Trouble
-shooting
Table 2 Troubleshooting Symptom Possible Cause Action
Display will not come on.
1. Blown fuse or tripped circuit breaker.
2. Furnace power switch OFF. 3. Furnace blower compartment door or panel loose or not properly installed.
1. Replace fuse or reset breaker.
2. Turn switch to ON. 3. Replace door panel in proper position to engage safety interlock or
door switch.
Indoor temperature display is incorrect. Temperature display needs calibration. Calibrate Sensor - User Setup Step 59.
Outdoor temperature display is
incorrect. Temperature display needs calibration.
1. Calibrate Sensor - User Setup Step 60.
2. Disconnect outdoor sensor from controls terminal block and check the
sensor and field wiring reisitance value - Table 2.
Outdoor temperature display
shows "--" and Service indicator
on solid.
Outdoor temperature sensor open or shorted Outdoor sensor field wiring open or shorted
1. Replace outdoor sensor.
2. Check / repair outdoor sensor field wiring.
Cannot set Heating setpoint
above 80 degrees
Deadband between Heating and Cooling set too high Decrease Deadband setting - User Setup Step 52.
Service indicator Flashing on and off. Control EEPROM write error. Press any key and Check / Re-enter Setup Choices. Service indicator solid on and "--"
in temperature display.
Onboard indoor temperature sensor open or shorted Replace Control
Room & Service icon flashing Remote indoor temperature sensor open or shorted 1. Check / repair remote indoor sensor field wiring.
2. Replace remote indoor sensor
Temperature setting will not
change. (Example: Cannot set
heating higher or cooling lower).
1. Upper and/or lower temperature limits were
reached. 2. "Keypad locked" is displayed on LCD.
1. Check the temperature setpoints:
Heating limits are 40 - 85F. Cooling limits are 65 - 90F.
2. Unlock keypad - press Up+Down arrow together until icon disappears.
Room temperature overshoots
when Energy Savings Key ($) is
used or the Heat/Cool settings is
changed more than 2 degrees.
Oversized heating or cooling equipment. Control can not respond fast enough to prevent overshooting.
Set Control Response Rate to "Fast" - Step 34.

Page - 6
Pub. No. 22-5209-01
FAN
- Pressing this key selects whether the indoor fan motor runs in automatic or
continuous mode. The FAN ON indicates that you have selected to operate the fan in continuous mode. Pressing the Fan keypad button again returns the indoor fan mode of operation to automatic and FAN ON goes away.
Fan
Fan
Keypad
Functions
(cont-)
- For variable speed indoor equipment, if you press and hold the Fan button for several seconds, the display changes to the Quick Setup option for continuous fan airflow. Use the UP and DOWN arrow buttons to change the airflow setting. NOTE: This feature is not available if the comfort control is set to BK Output disabled in Installer Setup.
Fan
Page - 19
Pub. No. 22-5209-01
Lock - Unlock Keypad: Press and hold Up Arrow and Down Arrow at the same time for several seconds.
(“Keypad Locked” icon will display on LCD screen)
User
Setup
Options
(cont-)
Menu Item Default Setting (Choices)
(Press UP or DOWN arrow)
Step
(Press Mode
or Fan)
Temperature Display 0 0 = Fahrenheit
1 = Celsius 50
Auto or Manual
Changeover 10 = Manual
1 = Auto 51
Setpoint Deadband 3 2 - 10 Degrees Fahrenheit
1.5 - 5.0 Degrees Celsius 52
Waiting Icon 1 0 = Disable
1 = Enable 53
Cooling Droop 1
0 = Off
1 = 1 Degree
2 = 2 Degrees
54
Energy Savings -
Cooling Setpoint Offset 50 - 25 Degrees Fahrenheit
0 - 15 Degrees Celsius 55
Energy Savings - Heating Setpoint Offset 50 - 45 Degrees Fahrenheit
0 - 25 Degrees Celsius 56
Indoor Filter Timer Method 00 = Calendar Days
1 = Fan Run Time Days 57
Indoor Filter Reminder - Days 30 1 - 180 Days
0 = Disable 58
Menu Item Default Setting (Choices)
(Press UP or DOWN arrow)
Step
(Press Mode
or Fan)
Calibrate Indoor
Temperature 0
Calibrated Room Temperature
+ / - 5 Degrees (1/2 degree
increments)
59
Calibrate Outdoor
Temperature (Enabled
in step 9)
0
Calibrated Outdoor Temperature
+ / - 5 Degrees (1/2 degree
increments)
60
Calibrate Remote
Indoor Temperature 0
Calibrated Room Remote IndoorTemperature + /- 5
Degrees (1/2 degree increments)
61
Continous Fan Airflow 50% 35% - 100% 62
Exit User Setup
(Press Mode) SA
CA = Cancel
SA = Save
US = Default User Settings
99
(Exit)
Note: Pressing the Energy Saving Key ($) anytime during setup will advance to step 99.
Step 99 - Make setting selection and than press MODE to exit.
SAve = Save selections.
USer = Default User setting.
CAncel = Cancel Selections for current session and return tp previous session selections
Table 1 Comfort Control Setup

Page - 7
Pub. No. 22-5209-01
FILTER/OD
Filter/OD
Filter/OD
- When the outdoor sensor is installed, outdoor temperature can be viewed on the Comfort Control’s display by simply pressing the “FILTER/OD” key.
Page - 18
Pub. No. 22-5209-01
Entering User Setup: Press and hold the MODE and FAN keypad buttons at the same time. Keypad Navigation: - Use the MODE or FAN buttons to navigate forward and backward through the Setup steps. - Press MODE to advance forward to the next step. - Press FAN to return to the previous step. - Use the UP and DOWN arrow keypad buttons to select or change Setup options.
User
Setup
Options

Page - 8
Pub. No. 22-5209-01
Filter/OD
Filter/OD
FILTER/OD
- Press this key twice to display how many days remain before time to replace or clean the filter. The “FILTER/OD” indicator will flash on the display when the filter timers days remaining reaches zero.
- Press the “FILTER/OD” key twice after cleaning or replacing the filter to turn off the filter indicator and reset the timer.
- If the filter is serviced before the timer expires, press the “FILTER/OD” key twice to display the “days remaining for filter”. Press the Down arrow to change the remaining days to zero. Press the “FILTER/OD” key twice to reset the timer.
Keypad
Functions
(cont-)
Page - 17
Pub. No. 22-5209-01
Factory
Default
Settings
User Defined Options and Factory Default Settings: (See Table 1, page 19) Temperature Display - Fahrenheit or Celsius (Default is Fahrenheit) Auto or Manual Changeover - (Default is Auto) Setpoint Deadband - 2 - 10 degrees (Default is 3 degrees) Waiting Indicator - Enable or Disable (Default is Enable) Cooling Droop - Off, 1, or 2 degrees (Default is 1 degree) Energy Saving Cooling Setpoint Offset - 0 - 25 degrees (Default is 5 degrees) Energy Saving Heating Setpoint Offset - 0 - 45 degrees (Default is 5 degrees) Indoor Filter Timer Method - Calendar Days or Fan Run Time Days - (Default is Calendar Days) Indoor Filter Timer Days - 1 - 180 days (Default is 30 days) Calibrate Indoor Temperature - + / - 5 Degrees (Default is 0 degrees) Calibrate Outdoor Temperature - + / - 5 Degrees (Default is 0 degrees) Calibrate Remote Indoor Temperature - + / - 5 Degrees (Default is 0 degrees) Continuous Fan Airflow - 35% - 100% (Default is 50%)

Page - 9
Pub. No. 22-5209-01
Filter/OD
Filter/OD
FILTER/OD
- If you press and hold the filter/OD keypad button for several seconds, the display changes to the Quick Setup option for the filter timer. Use the UP or DOWN arrow keypad buttons to change the timer setting if desired, 1 - 180 days.
NOTE: Setting to 0 will disable filter timer.
- Press the filter/OD button again to return to normal display or just wait a few seconds and the display will return on its own.
Page - 16
Pub. No. 22-5209-01
Calibrate Outdoor Temperature
This option allows calibration (or deliberate miscalibration) of the outdoor temperature sensor. The selected number is number of degrees, plus or minus, which will be added to actual temperature. The number can range between + 5 and - 5 degrees in 1/2 degree incre- ments. Factory default is 0. This adjusted value will be used and displayed as actual tempera- ture. For example, if 2 is selected, 72 degrees actual will read 74 degrees.
Comfort Information Drawer
The drawer attached to the mounting base of the control is designed to provide a convenient location for the user to locate their local servicer. A standard business card can be folded and inserted into the slot on the drawer to remind the User whom to call when service is re- quired.
Features
(cont-)

Page - 10
Pub. No. 22-5209-01
$
$
Energy Savings
- Use this key to lower your systems energy consumption and save money at the same time! Pressing the Energy Savings keypad button changes the indoor tempera- ture setting to a warmer temperature when the system is operating in the cooling mode and to a cooler indoor temperature setting when operating in the heating mode. Energy Savings will appear on the display.
$
Example: Heating offset of 8 degrees.
Keypad
Functions
(cont-)
Page - 15
Pub. No. 22-5209-01
Service Indicator
“SERVICE” automatically flashes when an internal fault or error has been detected by the control. See Table 2 on pages 20 & 21.
Wait Indicator
“WAITING” will illuminate when the indoor setpoint is moved in the direction of calling for additional system capacity. “WAITING” indicates that the control is adjusting to the new settings.
Calibrate Indoor Temperature
This option allows calibration (or deliberate miscalibration) of the room temperature sensor. The selection is the number of degrees added to actual temperature. The number can range between + 5 and - 5. Factory default is 0. This adjusted value will be used as actual tempera- ture for both display and control action. For example, if 2 is selected, 72 degrees actual will read 74 degrees.