Trane 18 HD64D1 1 Thermostat User Manual

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18-HD64D1-1  
ComfortLinkII Installation Guide  
Other Installation Guides may be necessary, based on system configuration.  
A complete list of other optional components is shown below.  
1 Thermostat  
Relay Panel  
For use with 24V indoor systems (optional)  
2
Zone Panel(optional)  
3
4
5
6
Zone Sensor with Display(optional)  
Zone Sensor(optional)  
Zone Dampers(optional)  
TZONE950AC52ZA  
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES  
IMPORTANT — This Document is customer property and is to remain with this unit.  
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with  
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the  
purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.  
Section 1. Safety  
Table of Contents  
!
WARNING  
This information is intended for use by individuals possess-  
ing adequate backgrounds of electrical and mechanical  
experience. Any attempt to repair a central air conditioning  
product may result in personal injury and/or property dam-  
age. The manufacturer or seller cannot be responsible for  
the interpretation of this information, nor can it assume any  
liability in connection with its use.  
Section 1. Safety................................................1  
Section 2. General Information.........................2  
Section 3. Physical Installation ........................5  
Section 4. Wiring................................................7  
Section 5. Installer Setup..................................9  
Section 6. Advanced Features........................13  
Section 7.Troubleshooting.............................17  
Section 8. Installer Setup Parameters ...........18  
!
WARNING  
LIVE ELECTRICAL COMPONENTS!  
During installation, testing, servicing, and troubleshoot-  
ing 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.  
NOTE: See the User’s Guide for  
wireless setup information.  
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Section 2. General Information  
2.1 Overview  
The ComfortLink II Thermostat is a Communicating  
7-inch color touch screen that provides an easy-to-  
use interface to the end user.  
The thermostat is a communicating wall mounted  
control that allows a user to control an HVAC and  
zoning system.  
With the addition of the 24VAC Relay Panel, con-  
ventional HVAC systems can also be controlled  
and zoned.  
2.2 Contents in Box  
The following parts are included in product model  
TZONE950AC52ZA:  
1 - Thermostat  
1 - Sub-Base  
3 - SnapSkru® Wall Achors  
3 - 1” Screws  
2.3 Specifications  
Specification  
Description  
Product Model:  
TZONE950AC52ZA  
Product:  
ComfortLink II Thermostat  
Size:  
7.3” width x 4.3” height x 1.2” depth  
-40°F to 175°F, 5% to 95% RH non-condensing  
25°F to 126°F, 5% to 90% RH non-condensing  
24 VAC from HVAC System (Range: 18-32 VAC)  
7 VA*  
Storage Temperature  
Operating Temperature:  
Input Power:  
Power Consumption:  
Wire usage:  
Minimum 18 gauge NEC approved control wiring  
60 ft. through 3 standard walls  
Varies with router model and placement  
ComfortLink II - 3 wire connection  
Heat, Cool, Auto, Emergency Heat  
On, Auto, Circulate  
Zone Sensor Wireless Range (802.15.4):  
Wireless Connectivity Range (802.11 b/g):  
Communications:  
System Modes:  
Fan Modes:  
Cooling Setpoint Temperature Range:  
Heating Setpoint Temperature Range:  
Indoor Temperature Display Range:  
Outdoor Temperature Display Range:  
Indoor Humidity Display Range:  
Minimum Cycle Off Time Delay:  
60°F to 99°F, 1°F resolution  
55°F to 90°F, 1°F resolution  
20°F to 119°F  
-31°F to 119°F  
0% to 99%, 1% resolution  
Compressor: 5 minutes, Heat: 1 minute  
* On every application, 24VAC loads should be reviewed to be sure the indoor unit control power transformer is adequately sized. See the Relay  
Panel Installer’s Guide for guidelines.  
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2.4 ComfortLink II System Connections  
Communicating System  
Thermostat  
TZONE950AC52ZA  
Indoor Unit  
Outdoor Unit  
Wired Remote  
Sensor*  
ZZSENSAL0400AA  
Wired Remote  
Outdoor Sensor*  
BAYSEN01ATEMPA  
*Optional  
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2.4 ComfortLink II System Connections (Continued)  
24V System  
Relay Panel  
Relay Panel  
BAY24VRPAC52DA  
Thermostat  
TZONE950AC52ZA  
Indoor Unit  
Wired Remote  
Sensor*  
ZZSENSAL0400AA  
Outdoor Unit  
Wired Remote  
Outdoor Sensor  
BAYSEN01ATEMPA  
*Optional  
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Section 3. Physical Installation  
Temperature Sensing Considerations  
1A  
The thermostat sensor is designed for installation  
in climate controlled living spaces. It is recom-  
mended to place the sensor in central locations  
with good circulation. Avoid exterior walls and ar-  
eas near windows, doors, vents or concealed pipes  
or chimneys.  
YES  
NO  
NO  
5 FEET  
[1.5 METERS]  
NO  
Wireless Reception Considerations  
1B  
If enabling wireless, choose a mounting location that ensures adequate signal strength.  
A wireless device may have significantly different signal strengths if its position chang-  
es relative to other wireless devices. If the thermostat shows poor signal strength, you  
may be able to improve the signal strength by moving the thermostat a short distance  
in any direction.  
Wireless  
Considerations to Maximize Signal Strength:  
Do not mount the thermostat more than 30 feet from the wireless router (through no more than three  
interior walls).  
Do not mount the thermostat in areas where electromagnetic emissions from other devices, appliances  
or wiring can interfere with the thermostat’s communication. (i.e. wireless phones, security systems, wire-  
less internet cameras)  
Do not mount the thermostat in recessed areas, near metal objects, or near structures. (i.e. doors, appli-  
ances, entertainment centers or shelving units)  
Do not mount the thermostat closer than 2 inches to any pipes, duct work, or other metal obstructions.  
Do not have metal obstructions, concrete or brick walls between the thermostat and the wireless router  
it will be connected to.  
NOTE: See the User’s Guide for wireless setup information (weather, multi-system and remote software up-  
date functionality).  
Removing Sub-Base Wall Plate  
2
Remove sub-base plate from the thermostat by in-  
serting a small flat blade screwdriver into the notch  
at each of the four tabs as shown.  
Gently pry the sub-base away from the the thermo-  
stat.  
NOTE: This tight fit is normal and ensures that the  
thermostat is held securely to the sub-base when  
mounted on the wall.  
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Mounting Sub-Base to Wall  
3
Be sure wires are routed through the center of the  
base plate and are long enough to connect to ter-  
minals.  
Select and mark three holes.  
NOTE: The three hole locations indicated at right  
are recommended. The top location is an optional  
mounting screw location.  
Optional Hole  
A level may be used to ensure professional appear-  
ance.  
Three (3)  
Recommended  
Screw  
Locations  
4A Mounting to Studs  
Attach base to wall using 3 screws provided. The  
locations indicated provide the most secure mount-  
ing and are recommended.  
NOTE: Since moderate force is required when re-  
moving the thermostat from the sub-base, the sub-  
base must be securely attached to the wall.  
Do not overtighten screws to avoid damaging the  
sub-base.  
4B Mounting to Drywall  
If mounting to drywall, supplied SnapSkru® connectors must be used to mount the thermostat sub-base to  
the wall. These connectors will ensure that the control is adequately supported.  
NOTE: Since moderate force is required when removing the thermostat from the sub-base, a firmly mount-  
ed sub-base is essential.  
1) Press tip of SnapSkru® an-  
chor into drywall using #2 Phillips  
screwdriver or screw gun. Drive  
anchor clockwise into drywall until  
anchor stops flush with wall.  
2) Place sub-base over anchor  
and insert screw.  
3) Tighten screw flush with sub-  
base. Screw “pops” open anchor,  
locking anchor on wall.  
Do not overtighten screws to avoid  
damaging the sub-base.  
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Section 4. Wiring  
!
WARNING  
!
CAUTION  
LIVE ELECTRICAL COMPONENTS!  
CAUTION: EQUIPMENT DAMAGE HAZARD - Improper wiring can lead  
to equipment damage. Follow the terminal connection information care-  
fully to ensure the control is wired properly. After wires are secure, bare  
wires MUST NOT touch each other. See the Field Wiring Diagrams for  
specific system applications.  
During installation, testing, servicing, and troubleshooting of this prod-  
uct, 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.  
NOTE: The maximum total cable length for the entire communicating system is 500 feet 18 AWG.The maximum distance of any single  
cable from a transformer is 250 feet 18 AWG.  
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 bal-  
lasts 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.  
5
Power Connections  
The thermostat is powered via 24 VAC from the indoor unit. On every application, 24VAC loads should be re-  
viewed to be sure the indoor unit control power transformer is adequately sized. The ComfortLink II thermostat  
draws approximately 4VA more than the typical communicating thermostat.  
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Connect Wiring  
Optional Connections  
Terminal  
Description  
Remote Sensor  
Connect wiring to terminals as  
shown.  
RS  
RS  
Remote Sensor  
D
R
ODT  
ODT  
Outdoor Temperature Sensor  
Outdoor Temperature Sensor  
Route wiring within the plastic  
channel as shown so that it does  
not interfere with thermostat when  
reinstalling. Do not overlap wires.  
Plug the opening with non-flamma-  
ble insulation to prevent drafts from  
affecting the thermostat.  
Thermostat Connections  
Terminal  
Description  
Data  
D
24 VAC (hot)  
24 VAC (common)  
R
B
Replace Thermostat  
7
Replace unit flat onto sub-base being careful to  
align unit correctly with the sub-base before apply-  
ing force.  
Thermostat should fit snug and not “rock” when  
properly installed. Check wire routing if sub-base is  
unstable.  
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Field Wiring  
8
Communicating System  
Communicating  
Outdoor Unit  
Communicating Indoor Unit  
Thermostat  
Brown  
D
R
Brown  
D
R
B
Brown  
Red  
Blue  
BK  
Y1  
Y2  
G
Blue  
W1  
W2  
W3  
B
Blue  
O
Communicating Indoor with Non-Communicating Outdoor  
24V Single Stage Cooling  
Thermostat  
Communicating Indoor Unit  
D
R
D
R
B
Brown  
Red  
Blue  
BK  
Yellow  
Y1  
Y2  
Yellow  
G
W1  
W2  
W3  
B
Blue  
Blue  
O
24V System  
D R B  
*See Relay Panel  
Installer’s Guide  
for specific wiring  
instructions.  
Indoor Unit  
Thermostat  
Relay Panel  
Brown  
Red  
D
R
B
Relay Panel  
Blue  
24V Outdoor Unit  
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Section 5. Installer Setup  
9
Power-Up  
Communicating Equipment  
Discovery mode begins when the thermostat is first installed and power is connected. For communicating equip-  
ment, the thermostat automatically configures standard equipment parameters.  
24V Equipment (Using a Relay Panel)  
Equipment will need to be configured manually through the Installer’s Setup menu in the thermostat. See the  
following section for more details.  
10  
Basic Navigation  
The home screen displays default temperature set-  
tings and parameters.  
Pressing a button will display additional information  
or a new menu screen.  
Example (Air Cleaner Mode):  
Pressing the “Air Cleaner Mode” button  
on the home screen allows selection of  
options from a list.  
Example (Menu):  
Pressing the “Menu” button on the home  
screen shows additional icons to adjust  
Help: Screens contain a Help button  
which provides additional information.  
Screens that are self-explanatory will not  
list additional help.  
settings.  
Buttons shown will vary depending on  
system type and configuration.  
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11  
Installer Setup Menu  
Enter the Installer’s Setup screen by navigating to:  
Home screen --> Menu --> Service --> Technician  
Access --> Proceed* --> Installer Setup  
*NOTE: Press and hold the “Technician Access”  
button for 5 seconds to enter the Installer Setup  
screen.  
NOTE: See Section 8 for a complete list of menus  
and parameters that can be set in the Installer  
Setup menus.  
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11A  
Installer Setup Menu - Standard  
Standard  
Pressing the “Standard” button allows manual selec-  
tion and configuration of basic equipment compo-  
nents.  
NOTE: In communicating system, components will  
be discovered automatically so this manual setup is  
not required.  
Example:  
The “Standard” screens allows selection of non-  
communicating equipment.  
11B  
Installer Setup Menu - Advanced  
Advanced  
Equipment settings may be adjusted to alter the  
default settings to fine-tune a system’s operation.  
Installed accessories and comfort options may be  
configured in the Advanced screen.  
NOTE: Icons available in this menu will vary based  
on equipment configuration.  
Example:  
Press the “Comfort” button to enable or disable comfort settings such as dehumidification (at right).  
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11C  
Installer Setup Menu - Restore  
Equipment Defaults  
CAUTION: “Restore Equipment Defaults” returns  
the thermostat to factory settings. ALL settings and  
data will be lost.  
11D  
Installer Setup Menu - Reset  
Advanced Settings  
“Reset Advanced Settings” resets the Advanced  
Settings which were configured in the Installer Menu  
(settings such as system lockouts, accessories, air  
flow and comfort options).  
12  
Wireless Networking  
NOTE: See the thermostat’s User’s Guide for wire-  
less setup information.  
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Section 6. Advanced Features  
Feature  
Description  
The 1-Touch Presets allows for an immediate change to the setpoint status. Set the desired temper-  
ature for the three status modes (Home, Away & Sleep). The thermostat will remain in the selected  
mode until another mode is selected or the program reaches a new schedule period.  
1-Touch Presets  
Aggressive Recovery: This option disables the 10 minute inhibit anytime the thermostat sees more  
than a 2° change (such as moving from one program time frame to another). This applies to heat-  
ing & cooling modes.  
Heating Aggressive Recovery: This option disables the 10 minute inhibit based on outdoor tem-  
perature in heating mode only. The value for outdoor temperature can be set from 0°–70°.  
Aggressive Recovery  
Heating Aggressive Recovery can only be enabled if Aggressive Recovery is disabled.  
There is a 10 minute “inhibit” period between first and second stage compressor as well as compres-  
sor heating & supplemental strip heat. This 10 minute inhibit period minimizes the cycling of higher  
capacity request due to drafts around the thermostat or marginal load conditions.  
There are three options when setting the Air Cleaner Mode:  
Auto--the air cleaner will run whenever the blower is running.  
Quick Clean--the thermostat will energize the air cleaner at 100% output and blower at 100% air flow  
for a 3-hour run cycle.  
Air Cleaner Mode  
Allergy Clean--the thermostat will energize the air cleaner at 100% output and blower at 100% air  
flow for a 24-hour cycle.  
System alerts will be indicated on the home screen of the thermostat with two options: “Close” or  
“Dealer Contact Information”.  
Selecting “Dealer Contact Information” will display the dealer screen.  
Selecting the “Close” option will move the alert to the top right corner of the home screen.  
Pressing the icon button in the top right corner of the screen will recall the alert to the home  
screen.  
Alert Indication  
All alerts will remain until resolved.  
Critical Alert – indicates the loss of heating or cooling operation. Only critical alerts will be dis-  
played on the home screen. These alerts will flash red when “closed” and moved to the top right  
corner of the thermostat.  
Major Alerts – indicates the loss of system functionality, but the system is still operational. Major  
alerts will be displayed as a solid yellow icon in the upper right corner of the thermostat.  
The backlight of the thermostat will increase anytime the screen is pressed (active mode) and dim  
after a time period of non-activity (standby mode). This timeout period between active mode and  
standby mode can be customized from 5–60 seconds.  
Backlight  
Blower on / off profiles can be set independently for heating and cooling modes. There are blower  
delays specific for variable speed, non variable speed and hydronic heat applications.  
Blower On / Off Delays  
The brightness of the screen can be customized for viewing preferences. Screen brightness can be  
set for daytime and nighttime modes.  
The Ambient Light Setting icon sets the amount of room light required to shift the display between  
daytime and nighttime settings.  
Brightness  
The sensors (indoor, remote and outdoor) can be individually calibrated for temperature and humid-  
ity. The indoor sensors may be calibrated to plus or minus 5° or 5% humidity in increments of 1 .  
The outdoor sensor may be calibrated to plus or minus 10° in 1° increments.  
Calibration  
This feature changes the response rate of the thermostat. Selecting a “faster” response rate will  
maintain a tighter tolerance of indoor temperatures, but increases the cycling of the system.  
Control Response Rate  
Customizable Home  
Screen  
Options such as screen brightness, screen savers, background colors, screen calibration and cus-  
tomized shortcuts can all be modified to create a personalized home screen.  
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Feature  
Description  
The cycle rate affects the cycle time of the system. With a 50% load value, a cycle rate of 3 will  
allow the system to run for 10 minutes and be off for 10 minutes; completing 3 cycles in one hour. A  
cycle rate of 5 would allow the system to cycle on and off at 6 minute intervals. The higher the cycle  
rate, the more often the system turns on and off.  
Cycle Rate  
The actual amount of time the system will be “on” or “off” will be reflective in the load value of the  
home. Higher load value demands will increase system run time and decrease system off time.  
Lower load value demands will decrease system run time and increase system off time.  
Dealer contact information, including name, address, website and multiple phone numbers may be  
entered. In addition, a dealer logo (which must be named dealer.jpg) can be uploaded through the  
use of an SD card. File size should not exceed 3 MB.  
Dealer Information  
There are two requirements before dehumidification is enabled:  
Dehumidification must be enabled through the Installer Setup.  
The indoor relative humidity must be above the desired setpoint.  
The system will take the following actions once this condition is met:  
The blower will reduce air flow proportional to the amount of RH error. The thermostat evaluates  
the percentage of humidity error and how long the error has existed to determine the amount of  
air flow reduction, up to 30% reduction.  
Dehumidification  
If overcooling is enabled, the thermostat will engage a 1 degree of overcooling for each 10% of  
RH error. A maximum amount of overcooling can be configured to 1, 2 or 3 degrees.  
Fan off delays will be eliminated.  
Smart Continuous Fan  
Continuous fan operation will be interrupted when indoor relative humidity exceeds desired humidity  
setpoint. A humidity icon will be displayed along with the fan icon to indicate that blower on options  
have been disabled due to high humidity conditions. Smart Continuous Fan will not interrupt the fan  
circulate mode.  
Diagnostics are displayed as current alerts (what is currently happening in the system) and alert his-  
tory (what has occurred in the past, but are no longer present). The alert screen describes the alert,  
when the alert happened, the severity level of the alert as well as a problem description and possible  
causes to assist with troubleshooting. Up to the last 30 days are displayed.  
Diagnostics  
The change over from heat pump to furnace can be set based on three options:  
Comfort–This is strictly based on indoor temperature demand. The furnace will take over when  
the heat pump can no longer maintain the indoor heating demand.  
Operating Cost–The HSPF of the heat pump and AFUE of the furnace must be entered along  
with cost of electricity and fuel. The thermostat calculates an economic balance point for system  
change over.  
Dual Fuel Options  
Outdoor Temperature–The changeover from heat pump to furnace is based on outdoor tem-  
perature which can be set from 0–70° (thermal balance point).  
The furnace will take over anytime the HP is unable to maintain indoor temperature, regard-  
less of the dual fuel option chosen.  
The heat pump will be disabled and the furnace / heat strips are enabled any time the thermostat is  
set to Emergency Heat.  
Emergency Heat  
Equipment List  
This lists the model and serial number for all communicating components.  
The model and serial numbers for non communicating components can be manually entered.  
There are three options available for blower operation:  
Auto–the blower runs when there is a call for cooling or heating.  
On–the blower will run continually with a fan only call. The continuous fan speed for variable  
speed motors can be adjusted from 35%–100%. A call for heating or cooling will supersede a  
fan only call and the blower will run at a speed that matches the staging of the equipment.  
Circulate–this provides all the features of “fan on”, but the blower will only run a percentage of  
the time when there is no call for heating or cooling. The blower can be set to circulate from  
10–55 minutes of every hour.  
Fan Options  
The bottom left corner of all screens has a Help icon with a question mark. This icon provides assis-  
tance for the screen that is currently being displayed. Screens that are self explanatory will not list  
additional help. Pressing the Help icon on these screens will display “No additional help available”.  
Help Screens  
The History Runtime screen provides information on system run time in comparison to the indoor  
and outdoor temperatures (average indoor along with the high & low outdoor temps). This history  
can be viewed on a weekly or monthly basis.  
History Runtime  
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Feature  
Description  
The History Screen provides system cycle information. Cycle counts and run time can be viewed  
for first stage and second stage compressor operation, W1 & W2 heating and defrost cycles. This  
information can be viewed in a 24 hour, 1 week or 2 week period.  
History Screen  
There are two options available for humidification:  
Indoor RH setpoint—this controls the humidifier based on the desired indoor humidity setpoint  
(options from 10%–45%).  
Frost Control setpoint--The thermostat references the outdoor temperature and indoor envi-  
ronment to calculate the risk of frost or condensation on interior walls and windows. A scale of  
0 to 10 allows for customized settings based on the insulation properties of the home. A higher  
number may be selected for well insulation homes, whereas a lower number should be selected  
on poorly insulation homes. A lower number should be utilized if condensation is observed.  
Humidification  
There are two control options for enabling humidification:  
Humidification with an active call for heat.  
Humidification without an active call for heat (thermostat energizes blower and humidifier).  
Humidification is only available when in the heating mode (or in the auto mode when the last  
call was for heating). A 60 second minimum blower off delay is enforced if “steam” humidifi-  
cation is selected.  
There are two categories for Installer Setup.  
Standard—this is the basic system settings such as heat pump or cooling only, single or multi  
stage, compressor type, etc. This is the basic system set up that is self discovered in communi-  
cating mode, but requires manual input when using a Relay Panel for 24 volt configurations.  
Advanced—this provides advanced configuration of the system such as cycles per hour, mini-  
mum run times, humidification and dehumidification setpoints, blower delays and temperature  
lockouts to name a few of the customizable features in this set up.  
Installer Setup  
Load Value  
Load Value is a numerical representation of the needed capacity to satisfy the setpoint. Proportional  
(distance from setpoint) error plus integral (time away from setpoint) error is used to calculate load  
value.  
System lockouts will disable a certain function of the system under specific outdoor temperatures:  
Compressor Heating Lockout – will lockout all compressor operation below a set outdoor tem-  
perature (from 5°–70°). This value must be set lower than the auxiliary heat lockout.  
Auxiliary Heating Lockout – will lock out auxiliary heat stages above a set outdoor tempera-  
ture (from 40°–70°). This value must be set higher than the compressor heating lockout.  
Defrost Heater Balance Point for W1, W2 & W3 – will lock out specific auxiliary heat stages  
when above a set outdoor temperature. (W1 setpoint is from 40°–55°, W2 & W3 setpoints are  
from 5°–55°). This feature does not apply to dual fuel systems.  
Lockouts  
Compressor Cooling First Stage Lockout – will lock out the first stage compressor above a  
set outdoor temperature. (from 80°–120°)  
Compressor Heating First Stage Lockout – will lock out the first stage compressor below a  
set outdoor temperature. (from 0°–50°)  
Furnace First Stage Heating Lockout – will lock out first stage furnace operation below a set  
outdoor temperature. (from 15°–50°)  
First stage lockouts are not available with zoning.  
Multiple thermostats that control individual systems can be linked. Multiple systems can be con-  
Multi Systems  
trolled from any thermostat location. A wireless home network is required for multi system function-  
ality.  
Allows the customization of a photo album screen saver. An SD card is required to view the pictures.  
Photos may be in .jpg, .jpeg, .bmp, .png, or .gif file formats and must be smaller than 3 MB each.  
Photo Album  
Reminder Screens  
Reminders can be set for filters, UV lamps, humidifier pads, and various other service reminders.  
There are three levels of restore:  
Restore from the Setting Screen – this restores all personal configurations, such as program  
schedules and home screen customization to their default setting.  
Reset Advanced Options from the Install Set Up screen – this restores all the advanced set  
up selections such as system lockouts, accessories, air flow and comfort options to their default  
setting.  
Restore  
Restore Equipment Default – this restores the thermostat to its “out of the box” condition. All  
settings will be set to their factory default condition.  
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Feature  
Description  
The History Runtime screen provides information on system run time in comparison to the indoor  
and outdoor temperatures (average indoor along with the high & low outdoor temps). This history  
can be viewed on a weekly or monthly basis.  
Runtime History  
Allows for 7 day programming with one to six scheduled time periods per day.  
There are two options available for setting a schedule:  
Guided Setup – a step by step interactive process for setting up a schedule.  
Manual Setup – a direct modification to an existing schedule which skips the interactive set up  
wizard from the guided set up.  
Scheduling  
Scheduling is not required. The thermostat can operate as a non programmable thermostat.  
The Clean Screen Mode creates a 30 second screen lockout. The screen can be touched and  
cleaned without changing settings. There is an icon “Press and Hold to Exit” which will exit this mode  
if necessary--eliminating the 30 second lock out.  
Screen Cleaning Mode  
Screen Layout  
The Screen Layout icon allows for customization of what is displayed on the home screen.  
The thermostat has the ability to log all information to a SD Card. A typical 24 hour log will consist  
of 12 to 20 megabytes of information. The thermostat will overwrite the oldest data once the card  
becomes full.  
SD Card Logging  
Security initiates a keypad lockout. The thermostat can only be accessed by a four digit pass code  
which can be configured in two different formats:  
Pin Lock: When the Pin Lock is selected, the thermostat is completely locked. The user will need to  
enter a four digit password to change any setting (the default is “1234”).  
Guest mode: The enabling of this mode allows a guest to change the temperature up to 5° in either  
direction from setpoint and access to the weather, but cannot change the mode or any customized  
settings.  
Security  
Setpoint Dead Band  
Software Updates  
This sets the temperature band between heating and cooling setpoints while in the auto mode.  
The thermostat is field software upgradable. Insert a SD card and press the Software Update icon,  
and updates will begin automatically.  
To prevent the next stage of capacity from being initialized, when the current capacity stage will  
satisfy the load a stage inhibit function is utilized.  
Stage Inhibit  
System Report  
System Status  
System Test  
The System Report Screen provides a real time in depth look at operating conditions. While similar  
to the System Status screen, the system report adds additional information for service technicians.  
The System Status screen shows the snapshot of what the system is doing; including system mode,  
air flow percentage and reminders.  
The System Test feature allows a technician to lock the system into a particular mode of operation  
for up to 30 minutes.  
The “Technician Access” icon has a 5 second hold delay to enter the technician service screens.  
After this 5 second hold delay, the technician will see a “Caution!” screen noting that only a trained  
HVAC technician should proceed into this area.  
Technician Access  
Screens  
Through an interactive calendar, pick the date, time and temperature to begin and end a vacation set  
back period.  
Vacation Mode  
Warm Air Discharge  
Weather  
Enabling Warm Air Discharge will reduce the variable speed blower air flow by 20% when in com-  
pressor heating operation. Warm air discharge only applies to compressor heating and is disabled  
when hydronic, fossil fuel or electrical heat (including supplement heat) modes are activated.  
The Weather feature displays the outdoor temperature, 5-day forecast and local Doppler radar. The  
weather screen is available once Wireless Service to the internet and Remote Services are enabled.  
16  
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Section 7.Troubleshooting  
Symptom  
Possible Causes  
Action  
Thermostat displays an alert  
code on the screen.  
Alert Code is present.  
Refer to the Alert Code Addendum. Check the  
Alert icons in the diagnostic screen.  
Display will not come on  
Loss of 24VAC between R & B at the thermo-  
stat.  
1) Check wiring between R & B to see if R & D, or  
B & D have been reversed.  
2) Check transformer for 24VAC output.  
3) Check for broken or shorted thermostat wire.  
Indoor temperature display is  
incorrect.  
Indoor temperature display needs calibration.  
Indoor humidity display needs calibration.  
1) Oversized heating/cooling equipment under  
Calibrate temperature sensor from thermostat  
menu.  
Indoor humidity display is incor-  
rect.  
Calibrate humidity sensor from the thermostat  
menu.  
Room temperature overshoots  
when the Heat/Cool setting is  
changed more than 2°.  
1) Compare heat load calculation to equipment  
current conditions. Control cannot respond fast chosen.  
enough to prevent overshooting.  
2) Improper location of thermostat.  
3) Aggressive recovery is activated.  
2) Relocate thermostat (or use remote sensor) if  
thermostat is in “dead” spot (poor or no air circula-  
tion).  
3) Deactivate aggressive recovery.  
Heating will not come on.  
Cooling will not come on.  
Heating or Cooling is displayed,  
1) System mode is not set to heat/Auto or set-  
point 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 for 5 minutes and recheck heating equip-  
ment.  
3) Check/repair system.  
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 for 5 minutes and recheck cooling equip-  
ment.  
3) Check/repair system.  
1) There is a fan delay as the heating or cooling 1) Wait a minute for blower delays and recheck  
but no warm or cool air is coming equipment turns on.  
registers.  
from the registers.  
2) Equipment is not working properly.  
2) Check/repair system.  
Fan runs all the time  
1) Fan mode is set to On, Circulate or Clean  
mode  
1) Check thermostat settings to see if fan is set to  
On, Circulate or Clean mode.  
2) There is a failure in the indoor unit  
2) Check indoor unit for failures (such as tripped  
heating limit).  
Fan is set to ON but not running. 1) Humidity control is engaged.  
2) Blower motor is not functioning.  
1) If indoor humidity is higher than desired set-  
point, the blower will cycle off with the equipment.  
2) Check/repair system.  
Cooling or Heating cycles too  
fast or too slow (narrow or wide  
temperature swings).  
1) Check the location of the thermostat for  
drafts.  
2) Cycles per hour or aggressive recovery is  
improperly set.  
1) Seal all air leaks behind thermostat. Relocate  
thermostat or apply remote indoor temperature  
sensor.  
2) Adjust cycle rates and aggressive recovery  
features in the advanced installer set up.  
Heat pump is not turning on; only 1) Outdoor temperature is below compressor  
furnace or electric heat strips are lockout temperature setting.  
1) Check/repair outdoor sensor or wiring.  
2) Adjust the compressor lockout temperature  
setting if desired.  
running.  
2) Compressor heating lockout is enabled and  
outdoor temp sensor is out of calibration or  
failed.  
Cannot change system mode to  
desired setting.  
Equipment is not configured properly.  
Check the standard installer set up screen to  
ensure equipment is properly configured.  
Screen does not respond prop-  
erly to a button press  
Screen is out of calibration  
Remove thermostat from sub base and reset.  
Follow the calibration instructions when the ther-  
mostat reboots.  
“No System Found” displayed on Internal error  
the thermostat  
Reboot the thermostat via onscreen button.  
Slow or no response to any but-  
ton presses  
Internal error  
Remove the thermostat from the sub base and  
reset.  
18-HD64D1-1  
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Section 8. Installer Setup Parameters*  
*Each Bold heading below corresponds to a menu in the Installer Setup. All possible options are shown for the menu  
and each submenu. Selections shown in any particular system will be dependent on system type and configuration.  
Standard  
Outdoor Unit Type  
Outdoor Unit Stages  
None  
1
Cooling Only  
2
Heat Pump  
Single Compressor Two Compressor  
Two Stage  
Gas/Oil  
Compressor Type  
Two Stage  
Electric  
None  
Indoor Unit Type  
Indoor Unit Heat Stages  
Indoor Unit Blower Type  
Hydronic  
2
1
3
Modulating  
Variable Speed Non Variable Speed  
Advanced  
Equipment  
Compressor Cooling Cycles Per Hour  
2
2
2
2
2
2
3
3
3
2
2
2
2
1
1
1
1
3
3
3
3
3
3
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
6
6
1st Stage Compressor Heating Cycles Per Hour  
2nd Stage Compressor Heating Cycles Per Hour  
Compressor Heating Cycles Per Hour  
1st Stage Compressor Cooling Cycles Per Hour  
2nd Stage Compressor Cooling Cycles Per Hour  
Compressor Minimum On Time - Minutes  
1st Stage Compressor Minimum On Time - Minutes  
2nd Stage Compressor Minimum On Time - Minutes  
Indoor Heater Cycles Per Hour  
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
1st Stage Indoor Heater Cycles Per Hour  
2nd Stage Indoor Heater Cycles Per Hour  
3rd Stage Indoor Heater Cycles Per Hour  
Indoor Heater Minimum On Time - Minutes  
1st Stage Indoor Heater Minimum On Time - Minutes  
2nd Stage Indoor Heater Minimum On Time - Minutes  
3rd Stage Indoor Heater Minimum On Time - Minutes  
Sensors  
Sensor Wired to CLII/ AccuLink Sensor Wired to  
Comfort Control Outdoor Sensor Relay Panel  
Select Outdoor Temperature Sensor  
None  
Calibrate Outdoor Temperature Sensor - Degrees  
Calibrate Indoor Temperature Sensor - Degrees  
Calibrate RH sensor  
+/- 5 increments  
Zone x +/- 5  
increments  
Zone x +/- 5  
increments  
Accessories  
Comm Air Cleaner  
Discovered  
Filtration Type Installed  
Air Cleaner  
Media Filter  
Number of Air Cleaners Installed  
Humidifier Installed  
Humidifier Type  
1
Ye s  
Steam  
RH Control  
Humidify with  
2
No  
Bypass/Powered  
Frost Control  
Humidify without  
Humidifier Control  
Humidifier Control Option  
Active Heat Call  
None  
None  
Active Heat Call  
Ye s  
Ye s  
UV Light Installed  
ERV Installed  
Comfort  
Enable Dehumidification  
Dehumidification Overcooling Limit - Degrees  
Control Response Rate  
Aggressive Recovery > 2° Setpoint Change  
Heating Aggressive Recovery  
Heating Aggressive Recovery - Outdoor Temperature  
Disable  
0
Normal  
Disable  
Disable  
0 to 70  
Enable  
1
Fast  
2
3
Enable  
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Warm Air Discharge  
Airflow  
VS Blower On Delay - Cooling  
Disable  
Enable  
No Delay  
1 Minute @ 50%, 7.5 Minutes @ 80%  
1 Minute @ 50%, 4 Minutes @ 80%  
7.5 Minutes @ 80%  
4 Minutes @ 80%  
1 Minute @ 50%  
30 Seconds @ 35%  
No Delay  
VS Blower Off Delay - Cooling  
1.5 Minutes @ 100%  
45 Seconds @ 100%  
30 Seconds @ 50%  
1.5 Minutes @ 50%  
3 Minutes @ 50%  
30 seconds @ 35%  
No Delay  
VS Blower On Delay - Compressor Heating  
1 Minute @ 50%, 7.5 Minutes @ 80%  
1 Minute @ 50%, 4 Minutes @ 80%  
7.5 Minutes @ 80%  
4 Minutes @ 80%  
1 Minute @ 50%  
30 Seconds @ 35%  
No Delay  
VS Blower Off Delay - Compressor Heating  
1.5 Minutes @ 100%  
45 Seconds @ 100%  
30 Seconds @ 50%  
1.5 Minutes @ 50%  
3 Minutes @ 50%  
30 seconds @ 35%  
Non VS Blower On Delay - Cooling (Seconds)  
Non VS Blower Off Delay - Cooling  
No Delay  
No Delay  
No Delay  
No Delay  
No Delay  
No Delay  
35-60  
15  
30  
30  
60  
30  
60  
60  
60  
90  
90  
Non VS Blower On Delay - Compressor Heating  
Non VS Blower Off Delay - Compressor Heating  
Hydronic Heat Blower On Delay  
15  
30  
90  
90  
30  
Hydronic Heat Blower Off Delay  
30  
Compressor Low Stage Air Flow % - Cooling  
Compressor Low Stage Air Flow % - Compressor Heating  
55-80  
55-80  
35-60  
Lockouts  
Compressor Heating Lockout  
Disable  
5 - 70  
Enable  
Enable  
Enable  
Enable  
Enable  
Enable  
Enable  
Enable  
Compressor Lockout - Outdoor Temperature  
Auxiliary Heat Lockout  
Disable  
40 -70  
Disable  
40 - 55  
Disable  
5 - 55  
Auxiliary Heat Lockout - Outdoor Temperature  
Defrost Heater Balance Point (W1)  
Defrost Heater Balance Point (W1) - Outdoor Temperature  
Defrost Heater Balance Point (W2)  
Defrost Heater Balance Point (W2) - Outdoor Temperature  
Defrost Heater Balance Point (W3)  
Disable  
5 - 55  
Defrost Heater Balance Point (W3) - Outdoor Temperature  
Compressor Cooling 1st Stage Lockout  
Disable  
80 - 120  
Disable  
0 - 50  
Compressor Cooling 1st Stage Lockout - Outdoor Temperature  
Compressor Heating 1st Stage Lockout  
Compressor Heating 1st Stage Lockout - Outdoor Temperature  
Furnace Heating 1st Stage Lockout  
Disable  
0 - 50  
Furnace Heating 1st Stage Lockout - Outdoor Temperature  
18-HD64D1-1  
19  
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6200 Troup Highway  
Tyler, TX 75707  
© 2011 Trane  
The manufacturer has a policy of continuous product and product data improve-  
ment and it reserves the right to change design and specifications without notice.  
Representative-only illustrations included in this document.  

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