ICP TSTAT0406 Manual

TSTAT0406 & TSTAT0407
International Comfort Products, LLC Page 1 48201530101 Sep 2008
997-060180-5
Installation Instructions / User’s Manual
TSTAT0406 and TSTAT0407
4 HEAT – 2 COOL – DUAL FUEL
TSTAT0406 & TSTAT0407 - 4 WIRE CAPABLE THERMOSTAT (NAXA00101DB Daughter Board sold separately)
LEFT OR PREVIOUS
SCREEN BUTTON
UP BUTTON
Apply logo label here
THERMOSTAT BUTTON OPERATION
RIGHT BUTTON
SELECT BUTTON
DOWN BUTTON
Menu Driven Display
NOTE: You must go through the Model Configuration menus first. If you do not configure your
thermostat and go straight to the different modes you will get a “Configuration Error” code
flashing at the top of the screen. To void error, run through the Configuration Mode Menus. To
Enter Configuration Menu set mode to OFF, then push the up and down buttons simultaneously
for 5 seconds.

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INSTALLER
SETTINGS MODEL CONFIGURATION HEAT/COOL SINGLE STAGE ELECTRIC
GAS
MULTI STAGE ELECTRIC
GAS
HEAT PUMP SINGLE STAGE ELECTRIC
DUAL FUEL
MULTI STAGE ELECTRIC
DUAL FUEL
ACCESSORIES AIR FILTER CUMULATIVE RUN TIME HOURS
CALENDER TIME MONTHS
HUMIDIFER CUMULATIVE RUN TIME HOURS
CALENDER TIME MONTHS
UV LAMP CUMULATIVE RUN TIME HOURS
CALENDER TIME MONTHS
ELEC. AIR CLEANER CUMULATIVE RUN TIME HOURS
CALENDER TIME MONTHS
INPUT DEALER INFO BRAND NAME
FURNACE MODEL
NUMBER
HP MODEL NUMBER
CONTRACTOR NAME
CONTRACTOR PHONE
SAVE YOUR DEALER IS
FAN WITH HEAT
OPTION
HUMIDITY OPTION
(HUMIDITY SETTINGS) HUMIDIFY ONLY
DEHUMIDIFY ONLY
AUTO
NONE
RESTORE DEFAULTS
OFFSETS TEMPERATURE OFFSETS TEMPERATURE OFFSET
REMOTE INDOOR
OFFSET
OUTDOOR OFFSET
HUMIDITY OFFSET
ANTICIPATOR
CYCLES PER HOUR
PROGRAM SETTINGS SMART RECOVERY
EVENTS PER DAY
SMART HEAT STAGING
COOLING LOCKOUT
ELECTRIC/FUNRACE
LOCKOUT
BALANCE POINT
SERVICE
INFORMATION FAULT STATUS
FAULT CODE DEFINITION FLASH CODE 1-9
CLEAR FAULT HISTORY
DOWN STAGING
TEST MODE
COOL TO DEHUMIDIFY
MAIN SCREEN RH (RELATIVE
HUMIDITY)
TEMP
MODE (OPERATING
MODE)
FAN
MENU (MAIN MENU) SET DATE AND TIME AUTO DAYLIGHT SAVING
SET DATE AND TIME MONTH/DAY/YEAR/HOUR/MINUTE
HOLD (HOLD MENU) VACATION HOLD
PERMANENT HOLD
PROGRAM MENU
PROGRAMMING
SCREEN DAY/TIME
FAN
MODE (OPERATING
MODE)
DISPLAY HUMIDITY
DISPLAY DEALER INFO
SETTINGS (SETTING
MENU) SCREEN SETTINGS FAHRENHEIT OR CELSIUS
12 OF 24 HOUR CLOCK
LANGUAGE
CONTRAST
BACKLIGHT ON TIME
AUTO CHANGEOVER AUTO CHANGEOVER TIME
AUTO OR MANUAL CHANGE
INTERMITTENT FAN INTERMITTEN FAN OFF TIME
SECURITY LOCKOUT TEMP ADJUST ONLY
TOTAL KEYPAD
LOCKOUT
TSTAT0406 AND TSTAT0407 MENU MAP

TSTAT0406 & TSTAT0407
International Comfort Products, LLC Page 3 48201530101 Sep 2008
Heat Cool / Heat Pump / Dual Fuel Communicating Thermostat
Installation and Start-up Instructions
INSTALLER SETTINGS
INSTALLER SETTINGS
INSTALLER SETTINGS
MODEL CONFIGURATION
ACCESSORIES
INPUT DEALER INFO
FAN WITH HEAT OPTION
HUMIDITY OPTION
RESTORE DEFAULTS
OFFSETS
CYCLES PER HOUR
PROGRAM SETTINGS
SERVICE INFORMATION
DOWNSTAGING
TEST MODE
COOL TO DEHUMIDIFY
SELECT OPTION ∇?
?PREVIOUS
MODEL CONFIGURATION To enter the INSTALLER SETTINGS screen, the thermostat MUST be in the OFF mode and at the MAIN
SCREEN press and hold the UP and DOWN buttons at the same time for 5 seconds. This will bring up the
INSTALLER SETTINGS screen. The installer settings are options that are specific to a particular installation
and should only be adjusted by qualified service personnel.
The INSTALLER SETTINGS options are:
MODEL CONFIGURATION – Defines what type of system the thermostat is controlling.
ACCESSORIES – What else is attached to the system and sets service alerts.
INPUT DEALER INFO – Allows service personnel to enter their name, phone number, and model information
for display in service situations.
FAN WITH HEAT OPTION – In a gas furnace application, this option turns the G output on when the heat is on
or off. G is default to ON when electric heat is selected.
HUMIDITY OPTION – In thermostats with an internal humidity sensor (TSTAT0407) this determines if
humidification or dehumidification will be energized. (Not shown on systems without humidity sensor)
RESTORE DEFAULTS – This will restore all factory defaults.
OFFSETS – Allows setting of permanent offsets to the temperatures and humidity to compensate for room
differences or measurement differences.
CYCLES PER HOUR – limits the cycling of the system to a set maximum per hour to reduce short cycling and
extend system life.
PROGRAM SETTINGS – Sets custom operation of the programming feature.
SERVICE INFORMATION – This menu can bring up current faults along with last three faults of the Comfort
Alert diagnostic module. It also has a list of fault code definitions and a method of clearing the faults out of the
thermostat memory.
DOWN STAGING – You can turn down staging on or off. Default is on.
(Refer to down staging section for details)
Staging Properties: Thermostat models TSTAT0406 & TSTAT0407 use advanced logic to control a two-stage
heating or cooling system for better home comfort and higher efficiency. The thermostat continuously monitors
set point, room temperature, anticipator setting, and temperature rate-of-change. Considering all the conditions,
the thermostat decides which stage (high or low) the system should be running for better home comfort and
higher efficiency. It is possible that the thermostat will keep the system running for longer periods of time in low
stage. This is normal, as the thermostat works to achieve higher efficiency and better home comfort. The
advanced logic operates in all modes and controls the system for ramp up (off→low stage→high stage) and
ramp down (high stage→low stage→off). There are NO differentials (dead bands) to set. Simply enter your
desired room temperature and the thermostat will hold the room temperature to within ¼ ºF from setpoint.
TEST MODE – Allows forced operation of all the different heating and cooling modes of the thermostat based on
The model configuration selected. Also shortens or eliminates the short cycle timer.
COOL TO DEHUMIDIFY – Uses the HVAC equipment in cooling to dehumidify the conditioned space. This
feature is used when the system does not have variable speed capabilities.
MODEL CONFIGURATION
HEAT / COOL
HEAT PUMP
SELECT OPTION ∇∆
⊲PREVIOUS
HEAT PUMP
MODEL CONFIGURATION
Highlighting MODEL CONFIGURATION, in the INSTALLER SETTINGS screen, and pressing SELECT
button will bring up the first MODEL CONFIGURATION screen.
The first option asks if the system is a HEAT PUMP or a HEAT/COOL system. Highlighting the proper
configuration and pressing SELECT sets up the system and brings up the next configuration screen.
Highlighting the proper setting for single stage systems or multi stage systems and pressing the SELECT
button sets the system for the proper operation.
MODEL CONFIGURATION
SINGLE STAGE
MULTI STAGE
SELECT OPTION ∇∆
⊲PREVIOUS
MULTISTAGE
If the system is configured for HEAT/ COOL operation and single or multi stage the next menu, ELECTRIC or
GAS, is where you will choose your source of heat. By pressing the SELECT button you will return the
display to the INSTALLER SETTINGS screen.
NOTE: If you have selected furnace and you wish to have G energized along with W you must turn the Fan
with Heat option to on.
If the system is configured for HEAT PUMP operation and single or multi stage the next menu, ELECTRIC or
DUAL FUEL, is where you will choose your source of heat. For HEAT PUMP systems, the ELECTRIC OR
DUAL FUEL configuration screen allows setting for gas or electric furnaces. If the auxiliary heat system is

TSTAT0406 & TSTAT0407
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ACCESSORIES
AIR FILTER
HUMIDIFIER
UV LAMP
AIR CLEANER
SELECT OPTION ∇∆
⊲PREVIOUS
AIR FILTER
AIR FILTER CHANGE
CUMULATIVE RUN TIME
CALENDAR TIME
SELECT OPTION ∇∆
⊲PREVIOUS
CUMULATIVE RUN TIME
gas or oil, highlight the DUAL FUEL option. For electric add-on heat, highlight ELECTRIC. Pressing the
SELECT button finishes the system configuration and returns the display to the INSTALLER SETTINGS
screen.
MODEL CONFIGURATION
ELECTRIC
MULTI FUEL
SELECT OPTION ∇∆
⊲PREVIOUS
DUAL FUEL
NOTE: The configuration steps must be done at the initial installation of the thermostat or
CONFIGURATION ERROR will appear on the top line of the MAIN SCREEN.
NOTE: YOU MUST HAVE AN OUTDOOR SENSOR FOR A DUAL FUEL SYSTEM TO OPERATE
CORRECTLY.
ACCESSORIES
Highlighting the ACCESSORIES option in the INSTALLER SETTINGS screen and pressing SELECT will
bring up the ACCESSORIES screen. This allows identification of add on accessories and sets a service
schedule for them.
Highlighting an accessory and pressing SELECT will bring up the NOTIFICATION METHOD screen.
This screen allows selection of notification by elapsed time (Calendar) or by hours actually run
(CUMULATIVE RUN TIME)
Highlighting CUMULATIVE RUN TIME and pressing the SELECT button will bring up the RUN HOURS
SCREEN.
AIR FILTER CHANGE
CUMULATIVE RUN TIME
1000
HOURS
CHANGE SETTING ∇∆
⊲PREVIOUS
The thermostat will keep track of the hours the system is actually running and compare that number to the
numbers of hours set in the CUMULATIVE RUN HOURS screen. When the hours are met, the thermostat
will display a message on the top line of the MAIN screen. In the case of the AIR FILTER, the message will
say CHANGE AIR FILTER. (See MAIN SCREEN _ TOP LINE for other messages)
Use the UP and DOWN buttons to set the hours from OFF to the maximum time allowed. (See defaults
table for values)
Thi t ti i id d i t d fid ti l t UT El t i C t l I d
AIR FILTER CHANGE
CALENDAR TIME
12 MONTHS
CHANGE SETTING ∇∆
⊲PREVIOUS
Thi t ti i id d i t d fid ti l t UT El t i C t l I d
Press the SELECT button to activate and save the settings. The thermostat will automatically return the
display to the ACCESSORIES screen.
Highlighting the CALENDER TIME option and pressing the SELECT brings up the CALENDER TIME
screen.
Use the UP and DOWN buttons to change the Calendar time before an alert is set. The time can be set
from OFF to the maximum time for the particular accessory. When the desired time is displayed, press the
SELECT button to activate and save the setting. The thermostat will automatically return the display to the
ACCESSORY screen.
INPUT DEALER INFO
DEALER INFO IS:
BRAND NAME:
XXXXXXXXXXXXXXXXXXXXX
FURNACE MODEL NUMBER:
XXXXXXXXXXXXXXXXXXXXX
HP MODEL NUMBER:
XXXXXXXXXXXXXXXXXXXXX
CONTRACTOR NAME:
XXXXXXXXXXXXXXXXXXXXX
260-555-5555
SERIAL NUMBER:
XXXXXXXXXXXXXXXXXXXXX
⊲PREVIOUS
INPUT DEALER INFO
BRAND NAME
FURNACE MODEL NUMBER
HP MODEL NUMBER
CONTRACTOR NAME
CONTRACTOR PHONE
SERIAL NUMBER
SAVE
SELECT OPTION ∇∆
⊲PREVIOUS
BRAND NAME
Highlighting INPUT DEALER INFO and pressing SELECT brings up the
DEALER INFORMATION screen.
The options are:
BRAND NAME
FURNACE MODEL NUMBER
HEAT PUMP MODEL NUMBER
CONTRACTOR NAME
CONTRACTOR PHONE
SERIAL NUMBER
SAVE

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Highlighting the type of information to enter and pressing SELECT button brings up the DATA ENTRY
screen for that option. Use the UP and DOWN buttons to scroll through the letters and numbers and use
the RIGHT button to move to the next space. When all desired information is entered, press the SELECT
button to save and return to the DEALER INFORMATION screen. When all desired dealer information has
been entered, highlight the SAVE option and press the SELECT button.
DEALER INFO
MODEL NUMBER
USE ∇∆ TO SCROLL
THRU CHARACTERS
A
_____________________________
CHANGE LETTER ∇∆
⊲PREVIOUS
A
The screen will display all of the entered information. If changes are needed, pressing the LEFT button will
return the display to the DEALER INFORMATION SCREEN and corrections can be made. Use the RIGHT
button to move across the line without changing the previous information.
If changes are not necessary, press the SELECT button when the information is displayed and the display
will return to the INSTALLER SETTINGS screen.
FAN ON WITH HEAT OPTION
ON
SELECT OPTION ∇∆
⊲PREVIOUS
OFF
FAN WITH HEAT OPTION
Highlighting the FAN WITH HEAT OPTION in the INSTALLER SETTINGS screen and pressing the
SELECT button will bring up the FAN WITH HEAT screen. Highlighting the ON option and pressing the
SELECT button will activate this option. When FAN WITH HEAT is active, the thermostat will turn on the
fan output (G) whenever there is a call for heat. Without this option active, there is no call for FAN (G)
when heat is on and the thermostat is configured for Gas heat. There is always a FAN (G) output when
there is a Y output in Heat Pump applications and when the system is configured for electric heat.
HUMIDITY OPTION (HUMIDITY SETTINGS) –TSTAT0407 Model Only
Highlighting the HUMIDITY OPTION in the INSTALLER SETTINGS screen and pressing the SELECT
button will bring up the HUMIDITY SETTINGS screen. The humidity options are:
SCREEN SETTINGS
HUMIDIFY ONLY
DEHUMIDIFY ONLY
AUTO
NONE
SELECT OPTION ∇∆
⊲PREVIOUS
HUMIDIFY ONLY
HUMIDIFY ONLY – Used when only a humidifier is attached to the system
DEHUMIDIFY ONLY – Used when only a dehumidifier is attached to the system or the system has self
dehumidification capability.
AUTO – Allows for H output to be active for humidification in heating and dehumidification in cooling. The
humidify set point will only be displayed in heating mode and the dehumidify set point will only be displayed
in cooling mode.
NONE – Used when no humidifier or dehumidifier is attached.
The settings for operation of the attached equipment are accessed from the MAIN screen by highlighting
the RH option and pressing the SELECT button. To have the humidity displayed on the main screen select
MENU/DISPLAY HUMIDITY from the main screen.
RESTORE DEFAULTS
RESTORE DEFAULTS
YES
SELECT OPTION ∇∆
⊲PREVIOUS
NO
Highlighting The RESTORE DEFAULTS option in the INSTALLER SETTINGS screen and pressing the
SELECT button will bring up the RESTORE DEFAULTS screen. By using the UP and DOWN buttons to
highlight the YES option and pressing the SELECT button, all settings are returned to factory default
condition.
NOTE: The configuration settings – HEAT COOL/HEAT PUMP, SINGLE/MULTI, GAS/ELECTRIC are NOT
reset by this command. The thermostat keeps the last valid settings. If these need to be changed, it must
be done through the CONFIGURATION screen.
OFFSETS
OFFSETS
TEMPERATURE OFFSET
HUMIDITY OFFSET
ANTICIPATOR
SELECT OPTION ∇∆
⊲PREVIOUS
TEMPERATURE OFFSETS
Highlighting the OFFSETS option in the INSTALLER SETTINGS screen and pressing the SELECT button
will bring up the OFFSETS SCREEN. Offsets are used when the temperature on the thermostat is not
representative of the room temperature the system is controlling. This may be due to many factors
including position of the thermostat, room air flow, sunlight on the thermostat and others.
The OFFSET options are:
TEMPERATURE OFFSETS – This can apply an offset of +- 5 degrees to change the temperature reading
from the internal temperature sensor, the external temperature sensor, and the outdoor temperature
sensor.
HUMIDITY OFFSET – This can apply an offset of +- 5% to the relative humidity read from the internal
sensor ANTICIPATOR – This can be set from 0 to 4 and adjusts the sensed temperature with running time
to help prevent overshoot in temperature regulation.

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TEMPERATURE OFFSET
0°
CHANGE SETTING ∇∆
⊲PREVIOUS
TEMPERATURE OFFSETS
TEMPERATURE OFFSETS
TEMPERATURE OFFSET
REMOTE INDOOR OFFSET
OUTDOOR OFFSET
SELECT OPTION ∇∆
⊲PREVIOUS
TEMPERATURE OFFSET
Highlighting the TEMPERATURE OFFSETS and pressing SELECT will
bring up the TEMPERATURE OFFSET screen. Selecting which offset to
adjust and pressing SELECT will bring up the appropriate screen for the
adjustment.
Pressing the UP and DOWN buttons will change the offset. Pressing the
SELECT button applies the offset to the temperature selected.
HUMIDITY OFFSETS – Model TSTAT0407 Only
HUMIDITY OFFSET
0%
CHANGE SETTING ∇∆
⊲PREVIOUS
Highlighting the HUMIDITY OFFSET option and pressing SELECT will bring up the HUMIDITY OFFSET
screen. Pressing the UP and DOWN buttons will change the humidity value displayed and used in
thermostats equipped with an internal humidity sensor. Pressing the SELECT button will apply the offset to
the humidity.
ANTICIPATOR
SET ANTICIPATOR
2
CHANGE SETTING ∇∆
⊲PREVIOUS
Highlighting the ANTICIPATOR and pressing the SELECT button in the OFFSETS screen will bring up the
SET ANTICIPATOR screen. The anticipator can be adjusted from 1 to 9. The 9 setting adjusts the most.
This adjustment is applied is systems where the room temperature overshoots the set temperature at turn
off of the system. The UP and DOWN buttons will adjust the ANTICIPATOR and the SELECT button will
apply the setting.
CYCLES PER HOUR
MAXIMUM ALLOWED
4
CHANGE SETTING ∇∆
⊲PREVIOUS
CYCLES PER HOUR
Highlighting the CYCLES PER HOUR option and pressing the SELECT button will bring up the CYCLES
PER HOUR screen.
Pressing the UP and DOWN buttons can adjust the CYCLES PER HOUR to either 4 or 6. If set to 4 the
thermostat will not allow a cycle to start until 15 minutes have passed from the start of the last cycle.
Setting to 6 will make the system wait 10 minutes before starting the next cycle. The time is measured
from start of a cycle to the start of the next cycle, and not the off time between cycles.
PROGRAM SETTINGS
SMART RECOVERY
EVENTS PER DAY
SMART HEAT STAGING
COOLING LOCKOUT
ELECTRIC HEAT LOCKOUT
BALANCE POINT
SELECT OPTION ∇∆
⊲PREVIOUS
EVENTS PER DAY
PROGRAM SETTINGS Highlighting the PROGRAM SETTINGS option in the SETTINGS screen and pressing SELECT will bring
up the PROGRAM SETTINGS screen.
The PROGRAM SETTINGS options are:
SMART RECOVERY – The thermostat looks ahead to the next programmed time and temperature and
adjusts its operation to reach the desired temperature at the programmed time. The normal operation is to
change the set point at the set time and let the system adjust the temperature starting at the set event time.
EVENTS PER DAY – Sets the number of programmed events per day to either 2 or 4.
NOTE: OUTDOOR SENSOR REQUIRED FOR NEXT THREE SETTINGS
COOLING LOCKOUT – Does not allow cooling when the outside temperature is below a specified
temperature
ELECTRIC HEAT LOCKOUT/FURNACE LOCKOUT when configured for MULTI FUEL – Does not allow
electric heat on a heat pump system or furnace to come on when the outdoor temperature is above a
specified temperature.

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HEAT PUMP LOCKOUT – Does not allow the heat pump to operate when the outdoor temperature is
below a specified temperature.
SMART RECOVERY
ON
OFF
SELECT OPTION ∇∆
⊲PREVIOUS
ON
SMART RECOVERY
Highlighting the SMART RECOVERY option and pressing SELECT will bring up the SMART RECOVERY
screen. Highlighting ON or OFF and pressing the SELECT button will turn smart recovery on or off and
return the display to the PROGRAM SETTINGS screen.
When SMART RECOVERY is ON, the thermostat tries to adjust the set temperature in advance of a
programmed event to get the temperature adjusted to the set point at the time of the event. For example, if
the set temperature is set for 65 degrees at 3PM and the next programmed event sets the temperature to
70 degrees at 5PM, the thermostat will start the system before 5PM to achieve 70 degrees at 5PM. The
thermostat assumes a change rate of 6 degrees per hour so it would start at about 4:10 PM and slowly raise
the set temperature to 70 at 5PM.
EVENTS PER DAY
EVENTS PER DAY
2 – RESIDENTIAL
2 - BUSINESS
SELECT OPTION ∇∆
⊲PREVIOUS
4 - RESIDENTIAL
Highlighting the EVENTS PER DAY option and pressing SELECT will bring up the EVENTS PER DAY
screen. Pressing the UP or DOWN buttons will set the events per day to 2 or 4 and business or
residential. This selection determines how many programmed events are available each day.
The Residential events are WAKE, LEAVE, RETURN, SLEEP for 4 events or WAKE and SLEEP for 2
events. The Business events are named ACTIVE and IDLE.
COOLING LOCK OUT (OUTDOOR SENSOR REQUIRED)
COOLING LOCKOUT
NO COOLING BELOW
55°
CHANGE SETTING ∇∆
⊲PREVIOUS
Highlighting the COOLING LOCKOUT option in the PROGRAM SETTINGS screen and pressing the
SELECT button will bring up the COOLING LOCKOUT SCREEN. This setting can be set from NONE to 55
degrees. When there is an outdoor thermistor attached and the outdoor temperature is below the set
Cooling Lockout point, the cooling will not operate.
Pressing the UP and DOWN buttons will change the setting and pressing the SELECT button will apply the
setting.
ELECTRIC HEAT /FURNACE LOCKOUT (OUTDOOR SENSOR REQUIRED)
ELECTRIC HEAT LOCKOUT
NO EHEAT ABOVE
55°
CHANGE SETTING ∇∆
⊲PREVIOUS
Highlighting the ELECTRIC HEAT LOCKOUT (FURNACE LOCKOUT if configured as GAS or DUAL FUEL)
option and pressing the SELECT button will bring up the ELECTRIC HEAT/FURNACE LOCKOUT screen.
In a heat pump system with an outdoor thermistor, this setting allows the thermostat to lockout the electric
heat when the outdoor temperature is above the Lockout set temperature. If your system is configured as a
furnace, it will lockout the furnace when the outdoor temperature is above the lockout set temperature.
Pressing the UP and DOWN buttons can change the setting temperature from NONE to 60 degrees.
Pressing the SELECT button will apply the setting and return the display to the PROGRAM SETTINGS
screen.
BALANCE POINT
NO HEAT PUMP BELOW
35°
CHANGE SETTING ∇∆
⊲PREVIOUS
BALANCE POINT (OUTDOOR SENSOR REQUIRED) –USED IN DUAL FUEL MODE
Highlighting the BALANCE POINT option and pressing the SELECT button will bring up the BALANCE
POINT screen. In a heat pump system with an outdoor thermistor, this setting allows the thermostat to
lockout the heat pump when the outdoor temperature is below the Lock Out set temperature.
Pressing the UP and DOWN buttons can change the setting temperature from NONE to 55 degrees.
Pressing the SELECT button will apply the setting and return the display to the PROGRAM SETTINGS
screen.

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SERVICE INFORMATION
SERVICE INFORMATION
FAULT STATUS
FAULT CODE DEFINITION
CLEAR FAULT HISTORY
SELECT OPTION ∇∆
⊲PREVIOUS
FAULT STATUS
Highlighting the SERVICE INFORMATION option and pressing the SELECT button brings up the SERVICE
INFORMATION screen.
Pressing the UP or DOWN button will alternate between FAULT STATUS, FAULT CODE DEFINITION and
CLEAR FAULT HISTORY. Selecting FAULT STATUS allows the FAULT STATUS screen to be selected.
Selecting CLEAR FAULT HISTORY allows the CLEAR FAULT HISTORY screen to be selected. Pressing
the SELECT button when the desired option is highlighted enables that option.
FAULT STATUS
FAULT STATUS
ACTIVE FAULT:
1 FLASH-LONG RUN TIME
LAST 3 FAULTS:
3 FLASH-SHORT CYCLING
5 FLASH-OPEN HI V CKT
9 FLASH-LOW VOLTAGE
?PREVIOUS
Highlighting the FAULT STATUS option and pressing the SELECT button brings up the FAULT STATUS
screen. The ACTIVE FAULT indicates the active fault (if any) that is currently being transmitted from the “L”
output from the Comfort Alert Module. The LAST 3 FAULTS indicates the last 3 faults that were stored in
memory and transmitted from the Comfort Alert module from the most recent to the latest.
FAULT CODE DESCRIPTION
Highlighting the FAULT CODE DEFINITION option and pressing the SELECT button brings up the FAULT
CODE DEFINITION screen.
FAULT CODE DEFINITION
FLASH CODE 1
FLASH CODE 2
FLASH CODE 3
FLASH CODE 4
FLASH CODE 5
FLASH CODE 6
FLASH CODE 7
FLASH CODE 8
FLASH CODE 9
SELECT OPTION ∇∆
⊲PREVIOUS
FLASH CODE 1
Pressing the UP or DOWN button will alternate between FLASH CODE 1 THRU 9. Pressing the SELECT
button when the desired selection is highlighted activates that option. Selecting one of the FLASH CODE
options and pushing ENTER button will display the definition for the selected FLASH CODE.
CLEAR FAULT HISTORY
CLEAR FAULT HISTORY
YES
SELECT OPTION ∇∆
⊲PREVIOUS
NO
Highlighting the CLEAR FAULT HISTORY option and pressing the SELECT button brings up the CLEAR
FAULT HISTORY screen.
Pressing the UP or DOWN button will alternate between NO & YES. Selecting NO will not change any of
the current adjustable settings and will return to the previous menu. Selecting YES will erase the Fault
Code History from the thermostat’s memory. Pressing the SELECT button when the desired option is
highlighted activates that option.
SERVICE NEEDED SCREEN
SERVICE NEEDED
CALL:
XXXXXXXXXXXXXXX
260-555-5555
BRAND:
XXXXXXXXXXXXXXX
MODEL NUMBER:
123ABC456DEF
SERIAL NUMBER:
123ABC456D
FAULT:
5 FLASH – OPEN HI V CKT
⊲PREVIOUS
Anytime there is an active fault on the Comfort Alert module and the “L” input is wired to the TSTAT0406,
TSTAT0407 thermostats or NAXA00101DB Daughter Board, the thermostat display will display the
SERVICE NEEDED screen with the corresponding Comfort Alert Fault. The CONTRACTOR NAME,
CONTRACTOR PHONE NUMBER, MODEL NUMBER and SERIAL NUMBER of the outdoor unit will be
displayed also if the information has been programmed into the thermostat at the INPUT DEALER INFO
screen in the INSTALLER SETUP menu.
To exit the SERVICE NEEDED screen while there is an active fault, push the ◄PREVIOUS button. Pushing
the ◄PREVIOUS button resets the active fault counter within the thermostat. If the fault is still active and
the fault is validated after the proper recognition timing, the fault will again be displayed in the SERVICE
NEEDED screen.

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DOWN STAGING
ON
OFF
SELECT OPTION ∇∆
⊲PREVIOUS
ON
DOWN STAGING Highlighting the DOWN STAGING option and pressing the SELECT button brings up the DOWN STAGING
screen. Pressing the UP or DOWN button will alternate between ON & OFF. Selecting ON will allow the
thermostat to down stage to a lower heating or cooling stage as the ambient temperature gets closer to the
temperature setpoint. Selecting OFF forces the thermostat to satisfy the call for heat or cool on the highest
active stage without down staging. Pressing the SELECT button when the desired option is highlighted
activates that option.
TEST MODE
TEST MODE SCREEN
HEAT PUMP MULTI
OFF
1ST STAGE COOL
2ND STAGE COOL
1ST STAGE HEAT
2ND STAGE HEAT
3RD STAGE HEAT
4TH STAGE HEAT
EMERGENCY HEAT
SELECT OPTION ∇∆
⊲PREVIOUS
OFF
TEST MODE SCREEN
1ST STAGE COOL
W1 OFF
W2 OFF
Y1 ON
Y2 OFF
GON
O/B ON
MIN OFF TIMER = 0
TESTING TIMER = 28 MIN
CANCEL
■
Highlighting the TEST MODE option and pressing the SELECT button
brings up the TEST MODE screen. Pressing the UP or DOWN button will
alternate between OFF and a list of all the heating and cooling stages
available in the model configuration you have programmed into the
thermostat. Pressing the SELECT button when the desired option is
highlighted activates that option. Selecting the OFF option will not change
any settings and will return to the previous screen. Selecting one of the
heating or cooling stages options will go to the associated screen and
show the list of thermostat inputs and display their OFF or ON status as
well as the cooling or heating stage selected at the top of the screen. The
minimum off timer is set to zero and the testing timer is set to 30 minutes.
The screen will flash red then blue throughout the testing process until
the testing timer is satisfied or the center CANCEL button is pushed.
COOL TO DEHUMIDIFY
COOL TO DEHUMIDIFY
YES
NO
CHANGE MODE
⊲PREVIOUS
YES
Highlighting the COOL TO HUMIDIFY option and pressing the SELECT button brings up the COOL TO
DEHUMIDIFY screen. Pressing the UP or DOWN button will alternate between YES & NO. Selecting YES
will allow the HVAC equipment in cooling to dehumidify the conditioned space. This feature is used when
the system does not have variable speed capabilities. This feature energizes the cooling outputs (Y1, G &
O) and the H output whenever the need for dehumidification is needed. This feature is only active when
there is no active call for heating or cooling. Selecting NO does not allow this feature to be active at any
time. Pressing the SELECT button when the desired option is highlighted activates that option.
COMFORT ALERT™MODULE FAULT CODES
Status LED Status LED Description Status LED Troubleshooting Information
Green “POWER” Module has power Supply voltage is present at module terminals
Red “TRIP” Thermostat demand signal
Y is present, but the
compressor is not running.
1. Compressor protector is open
•Check for high head pressure
•Check compressor supply voltage
2. Outdoor unit power disconnect is open
3. Compressor circuit breaker or fuse(s) is open.
4. Broken wire or connector is not making contact
5. Low Pressure switch open if present in system
6. Compressor contactor has failed open.
Yellow “ALERT”
Flash Code 1
Long Run Time
Compressor is running
extremely long run cycles
1. Low refrigerant charge
2. Evaporator blower is not running
•Check blower relay coil and contacts
•Check blower motor capacitor
•Check blower motor for failure or blockage
•Check evaporator blower wiring and connectors
•Check indoor blower control board
•Check thermostat wiring for open circuit
3. Evaporator coil is frozen
•Check for low suction pressure
•Check for excessively low thermostat setting
•Check evaporator airflow (coil blockages or return air filter)
•Check ductwork or registers for blockage
4. Faulty metering device
•Check TXV bulb installation (size, location and contact)
•Check if TXV/fixed orifice is stuck closed or defective
5. Condenser coil is dirty
6. Liquid line restriction (filter drier blocked if present in
system)
7. Thermostat is malfunctioning
•Check thermostat sub-base or wiring for short circuit
•Check thermostat installation (location, level)
8. Comfort Alert Module failure
Yellow “ALERT”
Flash Code 2
System Pressure Trip
Discharge or suction
pressure out of limits or
compressor overloaded
1. High head pressure
•Check high pressure switch if present in system
•Check if system is overcharged with refrigerant
•Check for non-condensable in system
2. Condenser coil poor air circulation (dirty, blocked,
damaged)
3. Condenser fan is not running
•Check fan capacitor
•Check fan wiring and connectors
•Check fan motor for failure or blockage
4. Return air duct has substantial leakage
5. If low pressure switch present in system, check Flash Code
6. 1 information
Status LED Status LED
Description Status LED Troubleshooting Information
Yellow “ALERT”
Flash Code 3 Short Cycling Compressor is running
only briefly
1. Thermostat demand signal intermittent
2. Time delay relay or control board defective
3. If high pressure switch present, go to Flash Code 2 information
4. If low pressure switch present, go to Flash Code 1 information
Yellow “ALERT”
Flash Code 4
Locked Rotor 1. Run Capacitor has failed
2. Low line voltage (contact utility if voltage disconnect is low)
3. Excessive liquid refrigerant in compressor
4. Compressor bearings are seized
•Measure compressor oil level
Yellow “ALERT”
Flash Code 5
Open Circuit 1. Outdoor unit power disconnected
2. Compressor circuit breaker or fuse(s) open
3. Compressor contactor has failed open.
•Check compressor contactor wiring and connectors
•Check for compressor contactor failure (burned, pitted or open)
•Check wiring and connection between supply and compressor
•Check for low pilot voltage at compressor contactor coil
4. High pressure switch is open and requires manual reset
5. Open circuit in compressor supply wiring or connections
6. Unusually long compressor protector reset time due to extreme
ambient temperature
7. Compressor windings are damaged
•Check compressor motor winding resistance
Yellow “ALERT”
Flash Code 6
Open Start Circuit 1. Run capacitor has failed
2. Open circuit in compressor start winding or connections
•Check wiring and connections= between supply and the
compressor “S” terminal
3. Compressor start winding is damaged
•Check compressor motor winding resistance
Yellow “ALERT”
Flash Code 7
Open Run Circuit
Current only in start
circuit
1. Open circuit in compressor run wiring or connections
•Check wiring and connectors between supply and the
compressor “R” terminal
2. Compressor run winding is damaged
•Check compressor motor winding resistance
Yellow “ALERT”
Flash Code 8
Welded Contactor 1. Compressor contactor has failed closed
2. Thermostat demand signal not connected to module
Yellow “ALERT”
Flash Code 9
Low Voltage
Control circuit < 17
VAC
1. Control circuit transformer is overloaded
2. Low line voltage (contact utility if voltage at disconnect is low)
•Check wiring connections
Flash Code number corresponds to a number of LED flashes, followed by a pause and then repeated.
TRIP and ALERT LED’s flashing at the same time means control circuit voltage is too low for operation.

TSTAT0406 & TSTAT0407
International Comfort Products, LLC Page 10 48201530101 Sep 2008
SET HUMIDITY
40%
CHANGE SETTING ∇∆
⊲PREVIOUS
MAIN SCREEN
MAIN SCREEN The Thermostat operation runs from the main screen. With the exception of the SERVICE NEEDED
SCREEN, the display will revert to the Main Screen in 3 minutes if no buttons are pressed.
The Main Screen displays the actual Temperature, the current MODE (HEAT, EHEAT, COOL, AUTO,
OFF), and the temperature set points (Unless the MODE is set to OFF). If there is an Outdoor thermistor
connected, the outdoor temperature is displayed. If the thermostat has Humidity sensing capability, the
humidity may be displayed. HEATING will be displayed as a flashing icon under the FAN mode display on
the main screen whenever there is an active heating thermostat call. COOLING will be displayed as a
flashing icon under the FAN mode display on the main screen whenever there is an active cooling
thermostat call. The top line of the MAIN SCREEN will normally display the time and date, but if
exceptional conditions exist, the top line is used to display the condition. For example, if there is a HOLD
set, the indication HOLD UNTIL (TIME DATE) or PERMANENT HOLD will be flashed on the top line. If
there are alerts from the alarm settings for filter or other maintenance, those are displayed on the top line.
The bottom line is a menu group. These are selectable by using the Right and Left buttons to move the
cursor and pressing the center SELECT button.
8/08/05 8:45 AM
OUTDOOR FAN AUTO
93° HEATING
73°HEAT
SETPOINT
HEAT 62
COOL 85
RH MODE FAN MENU
TEMP
TOP LINE
TIME and DATE – Normal operation
CONFIGURATION ERROR – The thermostat was not correctly set up when installed.
HOLD UNTIL (DATE and TIME) – Thermostat is in a temporary or Vacation Hold
PERMANENT HOLD – Thermostat is in a permanent hold condition.
CHANGE AIR FILTER – Maintenance time for air filter
CHANGE UV LAMP – Maintenance time for UV Lamp
SERVICE TIME – Maintenance time for system
SERVICE HUMIDIFIER – Maintenance time for humidifier .
NOTE: these service times are set in the INSTALLER SCREENS
SMART RECOVERY – The system is starting early to achieve temperature at the programmed time.
INTERMITTENT FAN – The fan is running its cycle set by the intermittent fan option.
COMMUNICATION ERROR – Only used in systems with the NAXA00101DB daughter board.
LOCKED – The thermostat is LOCKED. You will need to enter the unlock code.
DEFROST ERROR –If unit is in defrost 15 minutes after initiation, the thermostat will flash the SERVICE NEEDED screen and display
the EXCESS DEFROST TIME as the fault. The thermostat will only use Auxiliary heat outputs during this lockout.
NOTE: All errors and reminders shown in the top line are alternately flashed at 1 second intervals with the date and time.
RH (RELATIVE HUMIDITY) – Model TSTAT0407 Only
BOTTOM LINE contains a group of selectable menus.
RH (where used) displays the relative humidity and allows selection of humidity operation points.
TEMP sets a temporary hold. This will change the set point until the next programmed temperature change point. This can change to
CANCEL HOLD when a hold is active, RESET ALARM when an alarm or fault is active, and CANCEL ERROR when a DEFROST
ERROR is present.
MODE allows you to select which operating mode to use. HEAT, COOL, EHEAT, AUTO, or OFF.
FAN allows selection of fan operation. AUTO, ON, or PROGRAMMED.
MENU takes you to the MAIN MENU of options.
HUMIDITY
48%
HUMIDITY
HUMIDIFY SETTING 30
SELECT OPTION ∇∆
⊲PREVIOUS
HUMIDIFY SETTING 30
Selecting RH and pressing the SELECT button will bring up the HUMIDITY
screen on thermostats equipped with a humidity sensor. If the thermostat
does not have a humidity sensor, this position will allow display of dealer
information. The HUMIDIFY or DEHUMIDIFY settings can be changed by
using the SELECT Button to choose the HUMIDIFY SETTING or
DEHUMIDIFY SETTING box.
NOTE: In order to be able to select a Humidify or Dehumidify setting, the
HUMIDITY OPTION must be set for HUMIDIFY ONLY, DEHUMIDIFY
ONLY or AUTO in the HUMIDITY SETTINGS screen in the INSTALLER
SETTINGS menu.
Use the UP and DOWN buttons to change the HUMIDIFY or DEHUMIDIFY
setpoints within the preset ranges. When the desired setting is reached,
press the SELECT button. The H output on the thermostat will activate in
the humidification mode when the sensed ambient humidity is below the
setpoint selected and there is an active call for heating. The H output on the
thermostat will activate in the dehumidification mode when the sensed
ambient humidity is above the setpoint selected and there is an active call
for cooling. HUMIDIFY ONLY option displays only HUMIDIFY SETTING
DEHUMIDIFY ONLY option displays only DEHUMIDIFY SETTING
AUTO option displays both HUMIDIFY and DEHUMIDY SETTINGS
Note: Please note wiring diagrams for the humidifier and dehumidifier
options to ensure proper system operation.