Carrier Infinity SYSTXCCUID01-A User manual

_i_arn to the Expertg
Installation Instructions
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4
HOLE
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HEAT
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Fig. 1- Infinity " Control
A03149
NOTE:Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
Page
Safety Considerations ............................... 2
Introduction ...................................... 2
Installation and Start-Up Overview ................... 2
Installation ..................................... 2 -6
Section i -Check Equipment & Jobsite .............. 2
Section 2 - Infinity Control Location and Wiring
Considerations ..................... 2 - 4
Section 3 - Installing Infinitv Control ............ 5 -6
Initial Power-Up ................................ 7 - 8
Section 1 - Powerup Sequence ..................... 7
Section 2 -Selecting Outdoor Unit ................. 7
Section 3 - Selecting Electric Heater ................ 7
Section 4 - Selecting Accessories ................ 7 - 8
Section 5 - Equipment Summary ................... 8
Section 6 - Static Pressure Check ................... 8
Quick Start ....................................... 9
Install /Service Menus ......................... 10 - 15
Setup .................................... 10 - 13
Checkout ..................................... 14
Service .................................. 15 - 16
Operational Information ....................... 16 - 17
Troubleshooting .............................. 18 - 19

SAFETYCONSIDERATIONS
Readandfollowmanufacturerinstructionscarefully.Followall
localelectricalcodesduringinstallation.Allwiringmustconform
tolocalandnationalelectricalcodes.Improperwiringor
installationmaydamagetheInfinitySystem.Recognizesafety
information.Thisisthesafety-alertsymbol/_'. When you see
this symbol on the equipment and in the instruction manual, be
alert to the potential fnr personal injury. Understand the signal
words DANGER. WARNING, and CAUTION.
These words are used with the safety-alert symbol. DANGER
identifies the most serious hazards, which will result in severe
personal injury or death. WARNING signifies a hazard, which
could result in personal injury or death. CAUTION is used to
identify unsafe practices, which may result in minor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
INTRODUCTION
The Infinity System consists of several intelligent communicating
components which includes the Infinity Control (or User
Interface), variable speed furnace or FE fan coil, 2-stage AC or
HP and Infinity Packaged Products, which continually
communicate with each other via a four-wire connection called
the ABCD bus. Commands, operating conditions, and other data
are passed continually between components over the ABCD bus.
The result is a new level of comfort, versatility, and simplicity.
All Infinity furnaces or fan coils are variable-speed and nmlti
stage for maximum flexibility, efficiency, and comfort. They
support controlled ventilation, humidification, dehumidification,
and air quality control. Either an Infinity (communicating), or a
standard 24 vac controlled outdoor unit may be used.
When using conventional outdoor units, the Infinity furnace or
fan coil provides the 24 volt signals needed to control them. Also,
the Infinity Network Interface Module (P/N SYSTXCCNIM01)
allows connection of a Carrier HRV or ERV without the need for
a separate wall control.
All system components are controlled through the wall mounted
Infinity Control. which replaces the conventional thermostat and
provides the homeowner with a single wall control fnr all features
of the system.
INSTALLATION AND START-UP OVERVIEW
This instruction covers installation of the Infinity Control only.
Physical installation instructions for the indoor and outdoor
equipment, and accessories are provided with each unit.
Setup, commissioning, operation, and troubleshooting of the
Infinity System are covered only in this installation instruction. It
is the guide to connecting the system components and
commissioning the system once all physical components are
installed. Special screen prompts and start-up capabilities are
provided in the Infinity System to simplify and automate the
initial commissioning of the system.
• Install Infinity Control according to this instruction.
• Install indoor unit, outdoor unit, and accessories ac-
cording to their instructions.
• Wire complete system according to this instruction.
• Setup, commission, and operate system according to
this instruction to assure a smooth and trouble free
start-up.
INSTALLATION
SECTION 1.--CHECK EQUIPMENT AND JOB SITE
Inspect equipment. File claim with shipping company prior to
installation if shipment is damaged or incomplete.
SECTION 2.--INFINITY CONTROL LOCATION AND
WIRING CONSIDERATIONS
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Disconnect Power befnre routing control wiring.
All wiring must comply with national, local, and state codes.
INFINITY CONTROL LOCATION -- The Infinity Control
User Interface is the command center fnr the Infinity System. It
should be located where it is easily accessible and visible to the
adult homeowner or end user.
For accurate temperature measurement, the following guidelines
should be followed:
The Infinity Control and Room Sensors should be
mounted:
•Approximately 5 feet (1.5 nmters) from the floor.
• Close to or in a frequently used room, preferably on an
inside partitioning wall.
• On a section of wall without pipes or ductwork.
The Infinity Control and Room Sensors should NOT be
mounted:
•Close to a window, on an outside wall, or next to a
door leading to the outside.
• Exposed to direct light or heat from a lamp, sun,
fireplace, or other temperature-radiating objects which
could cause a false reading.
• Close to or in direct airflow from supply registers.
• In areas with poor air circulation, such as behind a door
or in an alcove.
REMOTE ROOM SENSOR OPTION -- A Remote Room
Sensor can be used with the Infinity Control to take the place of
the User Interface internal temperature sensor. This allows the
Infinity Control to be mounted in areas with less than optimal
airflow (such as near an exterior door, window or in a closet). The
remote sensor can be wired to the terminal block connectors
labeled $1 and $2 at the User Interface backplate, or the OS1 and
OS1C connection at the Damper Control Module. In either case,
the Infinity Control will automatically detect the Remote Room
Sensor and ignore its internal temperature sensor. It is also
important to note the humidity sensor cannot be remotely located.
so do not locate the Infinity Control in an area where humidity
sensing may not be accurate.
NOTE:S1 & $2 connection on UI backplate is now used for
Remote Room Sensor. NOT for OAT Sensor hookup.

WIRING CONSIDERATIONS -- Ordinary thermostat wire is
recommended. Use 22 AWG or larger for normal wiring
applications. Continuous wire lengths over 100 ft. should use 20
AWG or larger.
NOTE:ABCD bus wiring only requires a four-wire connection;
however, it is good practice to run thermostat cable having more
than four wires in the event of a damaged or broken wire during
installation.
Each communicating device in the Infinity System has a four-pin
connector labeled ABCD. It is recommended that the following
color code be used when wiring each device:
A -- Green = Data A
B -- Yellow = Data B
C -- White = 24VAC (Com)
D -- Red = 24VAC (Hot)
It is not mandatory that the above color code be used. but each
ABCD connector in the system MUST be wired consistently.
MOUNTING INFINITY CONTROL -- There are two options
for mounting the Infinity Control to the wall. First, become
familiar with all plastic assembly pieces shown in Fig. 2 through
9. The User Interface will snap together with either the Recess
Mount or the Surface Mount backplate.
RECESS MOUNT -- This provides the thinnest mounting
configuration (See Fig. 3). The backplate containing the recessed
terminal block can be mounted directly to the wall by cutting a
hole 1 1/2" wide by 2 1/8" high. Mark location and cut hole in
wall.
NOTE: Always ensure the Infinity Control location is acceptable
before cutting any holes in wall.
SURFACE MOUNT -- This provides surface mounting
configuration, which allows use of a small hole in the wall. A
surface mount backplate is supplied (See Fig. 4). Attach
backplate as shown in Fig. 7, and the assembly will mount
directly to the wall requiring only a small hole in the wall
allowing a four wire connection to pass through.
NOTE: Once Infinity Control is secured to wall with the
backplate assembly (snapped together), care must be taken not to
bend or break the interlocking tabs when removing. Gently
remove Infinity Control by rocking up/down until interlocking
tabs release.
DECORATIVE BACKPLATE -- Supplied is a thin decorative
backplate (see Fig. 5), to hide any marks/screw holes left from the
previous thermostat. This decorative backplate (or beauty ring) can
be used in either the recess or surface mount installation by snapping
it onto back of recessed mount backplate or surface mount backplate
before securing to wall. See Fig. 8 and 9 for a larger decorative
backplate P/N SYSTXXOLBP01 (5.75" ,,vide X 6" tall), which can
be ordered separately.
Fig. 2 - Infinity " Control
A03185
888
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Fig. 3 - Recessed Mount Backplate
A03186

r
Fig. 4 - Surface Mount Backplate
., .2
Fig. 5- Thin Decorative Backplate
A03187
A04017
Surface Mount
"Backpiate to wall
-Interlocking Tabs (4)
Fig. 7 -Surface Mount Assembly
Fig. 8 -Large Decorative Backplate
A03191
A03188
_)_ _ Recessed terminal block
[_ LJlJ 2n1/w_,[ll_ilh/2" wide bY
_ _ _Recessed Mount
l_Llnterlocking Tabs (4)
Fig. 6 - Recessed Mount Assembly
A03190
Fig. 9 -Decorative Backplate Assembly
A03192

SECTION 3.--INSTALLING INFINITY CONTROL
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing Infinity Control, turn off all power to
equipment. There may be more than one power source to
disconnect.
2. Turn off all power to equipment.
3. If an existing User Interface or control is being replaced:
d. Remove existing control from wall.
e. Disconnect ",vires from existing control.
f. Discard or recycle old control.
NOTE: Mercury is a hazardous waste, if existing control contains
any mercury, it MUST be disposed of properly. The User
Interface does not contain mercury.
4. Select Infinity Control mounting plastic (recess mount or
surface mount and decorative backplate if desired).
5. Route wires through large hole in mounting plastic. Level
rear plastic against wall (for aesthetic value only - Infinity
Control need not be level to operate properly) and mark
wall through two mounting holes.
6. Drill two 3/16 inch mounting holes in wall where marked.
7. Secure mounting plastic to wall using two screws and
anchors provided.
8. Adjust length and routing of each wire to reach each wire
entry on the connector backplate. Strip {B inch of
insulation from each wire.
9. Match and connect thermostat wires to proper terminals on
User Interface backplate. See wiring diagram Fig. 11, 12,
and 13.
A -- Green = Data A
B -- Yellow = Data B
C -- White = 24VAC (Com)
D -- Red = 24VAC (Hot)
NOTE: It is not mandatory that the above color code be used, but
each ABCD connection in the system MUST be wired
consistently. A separate ABCD Connector comes inside
packaging and should be used when connecting to furnace (or fan
coil). Ensure connector is inserted properly into circuit board.
(See Fig. 10)
A03193
Fig. 10 -Wire ABCD Connector
ELECTRICAL OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Improper wiring of the ABCD connector will cause
the Infinity System to operate improperly. Check to
make sure all wiring is correct before proceeding with
installation or turning on power.
10. Push any excess wire into the wall. Seal hole in wall to
prevent any air leaks. Leaks can affect operation.
11. Attach Infinity Control to the mounting plastic by lining
up the plastic guides on the back of the control with the
opening on the mounting plastic and push on.
12. Perform installation of all other system equipment (i.e.
dampers, humidifier, ventilator, UV lights, etc.)
13. Turn on power to equipment.
See wiring diagram Fig. 11 which includes an indoor
communicating furnace or FE fan coil, with a communicating
outdoor unit. No additional OAT (outdoor air temperature) sensor
is required because the Infinity Control will use the temperature
sensor inside the outdoor unit.
See wiring diagram Fig. 12 for connecting an indoor
communicating furnace or FE fan coil with a 1-stage air
conditioning unit (non-communicating outdoor). An Outdoor
Air Temperature (OAT) sensor may be installed (but is not
required) at the indoor furnace or fan coil OAT terminals. When
OAT sensor is applied, the Infinity System will provide enhanced
system features and benefits.
See wiring diagram Fig. 13 for connecting an FE fan coil with a
1-stage heat pump (non-comnmnicating outdoor unit). When
OAT is applied, the Infinity system will provide enhanced system
features and benefits.
NOTE: For other applications not listed, refer to the Network
Interface Module (NIM) Installation Instructions.

/
User _nterface
] Green
] ¥_llow
] White
] E_ed
] } Opliona] Remote
] s_ Room Senso4
Variable=Speed
Furnace/Fan Coil CommunicatBng
AC or HP
....... []
White
Red
¢- = _ ABCD
Htmidfer _ HUM Connections
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777
A03146
Fig. 11 -Universal Four-Wire Connection Diagram
User mnterfaee
] Gree_q
] Whir e
] Red
] } Optiohc_l Remote
] F_ Room Sensoli i
VariabRe-SDeed
Furnace/Fan Coil
tOM
24V
V/V2
1-Spd. AC
o
c
OAT
Sensor
A03147
Fig. 12 - Connection Diagram for Furance or FE Fan (;oil
w/i-Stage AC
] Yvllow
] White
] Red
] i _ O_ionai Remote
Variable-Speed
Far, Coil
= o.....,,oo
[] r- Roo,_s...... =_ l=Spd. HR
JHLmidfer ; HUM
Connect on @ _J_ o
R@ 'OR
O@ i@O
W@4@W2
OAT >>_OAT
_ _ Sensor
A03148
Fig. 13 - Connection Diagram for FE Fan Coil with
Non- Communicating 1-stage HP
HUMIDIFIER CONNECTION -- A24vac bypass or fan
powered humidifier may be installed.
NOTE: Do Not Use a traditional humidistat to control humidifier
operation. If a humidifier is installed, let the Infinity Control
operate humidifier.
BYPASS HUMIDIFIERS -- A bypass humidifier should be
wired directly to the furnace or fan coil HUM and 24vac COM
terminals. The Infinity Control will automatically energize the
HUM output during a call for humidification.
FAN POWERED HUMIDIFIERS -- Most fan powered
humidifiers produce internal 24vac in order to energize upon a
switch or contact closure. For this application, a 24vac N.O.
Isolation Relay (DPST) MUST be used to prevent mixing the
internal humidifier power with the indoor equipment transformer.
Applying 24vac isolation relay coil to furnace or fan coil HUM
and COM terminals will allow the Infinity Control to
automatically energize the HUM output during a call for
humidification. The N.O. relay contacts ,,vill be used to energize
the humidifier. See fan powered humidifier installation
instructions for more details.
EQUIPMENT HAZARD
Failure to follow this caution may result in equipment
damage. Do not apply 24vac fan powered humidifier
(with internal power supply) direct to indoor unit
HUM and COM terminals.
H um dity_OAT
Left Side
rrle
Schedule & Vacation
t,_ _ Fan Button
Display Screen
(LOD}
b _ Rigqt Sde
Buttol
_ s_ _- Heat Button
o
Cool Button
'_ J_ Temperature
(+) Butte 1
Sysem
OnOff Buttol
Basic & AcIvalqcec}
Setup Buttolss
Scroll Buttons
FliI) DOWl
Door
Fig. 14 - Functional Overview
A03194

INITIAL POWER-UP
NOTE: Refer to Functional Overview (Fig. 14) to become
familiar with key function buttons such as "System On/Off,"
"Fan," "Left-Side" and "Right-Side" buttons, etc. These function
buttons will be used frequently during setup.
SECTION L--POWER UP SEQUENCE
ESTABLISHING
COMMUNICATIONS
WITH EQUIPMENT
PLEASE WAIT
SOFTWARE
VERSION
SEARCHING FOR
BQUIPMENT
I,ll{,tlB|
WORKING
OUTDOOR UNiT
SEARCHING FOR
OUTDOOR EQUIPMENT
WORKING
AO3195
Fig. 15 - Power Up Sequence
This section addresses initial power up (or commissioning) of a
new Infinity Control. The User Interface will communicate and
identify all Infinity components in the system. The following is a
typical example for a comnmnicating Variable-Speed Furnace /
Fan Coil with a 2-stage Air Conditioner /Heat Pump (including
Dual Fuel).
The User Interface display will light up and indicate that it is now
"ESTABLISHING COMMUNICATIONS WITH EQUIPMENT
PLEASE WAIT." The User Interface ,,vill automatically continue
by "SEARCHING FOR EQUIPMENT", followed by
"SEARCHING FOR OUTDOOR EQUIPMENT" (See Fig. 15).
Once the indoor and outdoor equipment has been found, the
Installer will be asked to select Accessories. Packaged Products
will be automatically identified and the Installer will be asked to
select Accessories. Proceed to SECTION 4 -- SELECTING
ACCESSORIES.
NOTE: If the variable-speed indoor equipment (furnace or fan
coil) cannot be found, the User Interface will display "CANNOT
COMMUNICATE WITH INDOOR UNIT.'"' This MUST be
corrected before the initial power up sequence can continue. If
indoor unit is found, but outdoor unit is not found. "OUTDOOR
UNIT NOT IDENTIFIED" will appear. Proceed to the next
section fnr Outdoor Unit Identification.
SECTION 2.--SELECTING OUTDOOR UNIT
OUTDOOR UNIT
NOT IDENTIFIED
SELECT TYPE:
NONE, ACHP
PRESS +' TO MAKE
SELECTION
CONTINUE>
OUTDOOR UNIT
ENTBR HEAT PUMP
SIZE:
18000 TO 60000 BTU
PRESS + /TO MAKE
SELECTION
< BACK CONTINUE>
OUTDOOR UNIT
HEAT PUMP
ENTER NUMBER OF
_TAGBS 1 OR 2: M
PRESS + /TO MAKE
SELECTION
< BACK CONTINUE>
AO3196
Fig. 16 - Selecting Outdoor Unit
If there is no communicating outdoor unit, the screen, shown in
Fig. 16. ,,vill appear. Press either Time or Temp +/- buttons to
select AC (air conditioner), HP (heat pump), or None (no unit
installed). Press right-side button to continue to next screen.
If either AC or HP has been selected as the outdoor unit type, the
middle screen ,,vill appear (See Fig. 16). Press either Time or
Temp +/- buttons to select appropriate Btu size of outdoor unit,
then press right side button to continue. If a NIM (Network
Interface Module) is applied for non-communicating two-stage
outdoor equipment, select 1 or 2-stage compressor operation ,
and press right-side button to continue.
NOTE: Range of outdoor unit Btu selection is limited by model
number of indoor unit installed. The Infinity Control will not
allow an outdoor unit size that is not supported by the installed
indoor unit.
NOTE: On new system installations, the model and serial
number will be recognized and displayed. On any indoor/outdoor
board replacements, the equipment will be recognized but the
exact model/serial number will not be displayed.
SECTION 3.--SELECTING ELECTRIC HEATER
ELECTRIC HEATER
NOT IDENTIFIED
ENTER SIZE:
NONE 5 10 15KW
PRESS +,' TO MAKE
SELECTION
CONTINUE>
Fig. 17 - Selecting Electric Heater A03197
If the equipment is a fan coil, packaged heat pump, or packaged
AC and the electric heater is not self-identifying, "ELECTRIC
HEATER NOT IDENTIFIED" will appear (See Fig. 17). Press
either Time or Temp +/- buttons to select appropriate size of
electric heater installed, then press right-side button to continue.
An asterisks (*) will appear next to electric heater sizes that may
cause excessive airflow.
NOTE: Range of electric heaters available is limited by model
number of the equipment installed. The Infinity Control will not
allow an electric heater size that is not supported by the installed
equipment.
SECTION 4.--SELECTING ACCESSORIES
ACCESSORIES 1
AIR FILTER TYPE:
BAC
MEDIA
MBDIA + EAC
PRESS + ,' TO MAKE
SELECTION
CONTINUE>
AIR FILTER MEDIA TYPE
I
ACCESSORIES |IACCESSORIES
HUMIDIFIER UM LIGHTS
INSTALLED? _ I INSTALLED?
PRESsSE_EcTTcONMAKE I PR%t;ctT°MAKB
< BACK CONTINUE> < BACK CONTINUE>
HUMIDIFIER INSTALLED? U_Z LIGHTS INSTALLED?
A03198
Fig. 18 - Accessories --UV Lights
Once the indoor and outdoor equipment have been found or
entered, the following screens ,,vill appear allowing the Installer to
select the "AIR FILTER TYPE; HUMIDIFIER INSTALLED;
and UV LIGHTS INSTALLED" (See Fig. 18). Use either Time
or Temp +/- buttons to make appropriate selections in the
highlighted area on the display screen. Press right-side button to
continue (or advance) to the next screen.
AIR FILTER TYPE -- This accessory screen will appear first.
The installer will need to enter the type of filter (MEDIA. EAC.
or both). See Table 1 and make a selection using Time or Temp
+/- button, then press right-side button to continue.
Table 5--Filter Selection
INSTALLED FILTER
1 inch to 4 inch media
High voltage EAC
High voltage EAC + 1 to 4 inch media
MENU
SELECTION
MEDIA
EAC
MEDIA +EAC
ii

HUMIDIFIER INSTALLED -- This will appear after the Air
Filter Type screen. Select whether a humidifier is installed on the
system, YES or NO, then press right-side button to continue.
UV LIGHTS INSTALLED -- This screen will appear to select
whether UV lights are installed on the system, select YES or NO,
then press right-side button to continue.
SECTION 5.--EQUIPMENT SUMMARY
IEQUIPMENT SUMMAR']
FURNACE 58MVP0100 12
AC 38TDBE3E0300
FILTER EAC
HUMIDIFIER YES
UV LIGHTS YES
< NO YES>
SETUP SAvECOMPLETEt I
ALL SELECTIONS?
< NO YES>
Fig. 19 - Equipment Summary
A04046
The "EQUIPMENT SUMMARY" screen will appear after
Accessories have been selected. This screen will give a sunmaary
of all equipment automatically found or manually selected. If a
wrong selection was made. press left-side button (BACK
selection) to go back to that particular screen and make changes.
When everything is OK, press right-side button again to
continue. (See Fig. 19)
The "SETUP COMPLETE! SAVE ALL SELECTIONS?" screen
will appear after Equipment Summary. To Save All Selections
press (YES) right-side button. Pressing the left-side button (NO
selection) will return to the Equipment Summary screen where
changes can be performed to any of the equipment selection
screens. After selecting YES, the initial power up sequence of the
new Infinity Control is complete.
SECTION &--STATIC PRESSURE CHECK
STATIC
PRESSURE
CHECK
PLEASE WAIT
EXTERNAL STATIC
PRESSURE
MEASURED:
072 INCHES
AT 1200 CFM
CONTINUE
Fig. 20 - STATIC PRESSURE CHECK
A05000
This screen will appear after Setup is exited. The system will
open all dampers and perform a static pressure check. This
process will take about 1 1/2 minutes to complete. When
completed, a screen will appear displaying the static pressure (in
inches) across the equipment at the expected highest delivered
airflow. If the static pressure is over 1 inch, a warning will
appear, but equipment operation and the TrueSense" dirty filter
detection operation will not be affected.
NOTE: The static pressure check occurs only at initial
installation, or when INSTALL is run in the INSTALL/SERVICE
menu.

QUICK START
For first time installers, Quick Start will allow a quick start up of
the Infinity System before learning all the details of system
operation. However. for the best possible comfort and operation
refer to the Infinity Control Owner's Manual.
SET DAY, TIME & DESIRED HUMIDITY
1. Flip down the door at the base of the Infinity Control and
press the BASIC button.
2. Adjust the highlighted HOUR setting using the TIME
(+/-) button.
3. Press SCROLL button (down) to highlight MINUTE.
4. Adjust the MINUTE setting using the TIME (+/-)
button.
5. Press SCROLL button (down) to highlight DAY.
6. Adjust the current DAY setting using the TIME (+/-)
button.
7. Press SCROLL button (down) to highlight HUMIDITY.
8. Press the red HEAT button to select heating humidity.
9. Adjust desired heating humidity level using either (+/-)
button.
10. Press the blue COOL button to select cooling humidity.
11. Adjust the desired cooling humidity level using
either(+/-)button.
12. To exit press BASIC button or close door.
13. If changes are made. you will be asked to "SAVE
CHANGES? YES/NO."
OVERRIDE HEATING SCHEDULE
1. Press the red HEAT button. Heating mode is confirmed
when the red LED next to the red HEAT button is lit.
2. Use the TEMP (+/-) button to select your desired heating
temperature.
3. The default time for temporarily overriding the
temperature schedule is 2:00 HRS as indicated by the text
on the lower left.
NOTE: Override time will not appear if programming has been
turned off.
4. You can change the temporary override time in 15-minute
increments by pressing the TIME (+/-) button until the
desired override time is selected, or press the HOLD
button anytime to override the schedule indefinitely.
QUICK PROGRAM SCHEDULE FOR ALL DAYS
This section will give yon a quick program schedule for ALL
DAYS of the week. For more information on how to create
customized schedules for every clay, the entire week. or weekend,
refer to the Owner's Manual.
1. Flip down the door at the bottom of the control.
2. Press the SCHEDULE button, which allows you to create
one schedule for the entire home.
3. Press either the LEFT or RIGHT side button repeatedly
(if necessary) until "ALLDAYS" is displayed. The
WAKE time period will be highlighted.
4. Using the TIME (+/.) button, set the start time for this
time period.
5. Press the red HEAT button. Heating temperature will
begin flashing.
6. Set the heating temperature using the TEMP (+/.) button.
7. Press the blue COOL button. Cooling temperature will
begin flashing.
8. Set the cooling temperature using the TEMP (+/.) button.
9. Set the remaining periods by using the SCROLL button
to select "DAY." "EVENING," and "SLEEP".
10. Exit the scheduling mode by either closing the door or
pressing the SCHEDULE button.
11. If changes are made, you will be asked to "SAVE
CHANGES YES/NO."

INSTALL/SERVICE MENUS INSTALL MENU
INSTALL /SERVICE
EQUIPMENT SUMMARY
INSTALL
SETUP
CHECKOUT
SERVICE
SOFTWARE VERSION 1
<EXIT SELECT>
Fig. 21 -INSTALL /SERVICE MENUS
A0S200
The "INSTALL /SERVICE" menus contain a set of vital
information. This information enables the Installer or Service
person to view a summary of what has been installed, etc. This
information is not covered in the Owner's Manual.
To enter INSTALL /SERVICE menus, press and hold the
ADVANCED button for at least ten seconds. The following
menu will appear (See Fig. 21):
NOTE:The INSTALL /SERVICE menu will automatically exit
after 60 minutes of no push button activity.
EQUIPMENT SUMMARY: ShovEs all equipment recognized by
and attacbed to the system.
INSTALL: Used when adding, changing out, or uninstalling
equipment.
SETUP: Used to view or modify equipment settings.
CHECKOUT: Allows testing of equipment operation
SERVICE: Used to view operation and fault history of equipment
and enter dealer name/phone number for display
EQUIPMENT SUMMARY MENU
EQUIPMENT SUMMARY
FURNACE 58MVP0100 12
AC 38TDSO3EO300
FILTER EAC
HUMID}PIER YES
UVUGHTS YES
< BACK
Fig. 22 -EQUIPMENT SUMMARY A03201
This screen shows indoor unit type and model number, outdoor
unit type (and model number if a z-stage unit), filter type and any
accessories that are installed are recognized.
INSTALL
TO ADD, UNINSTALL, OR
RE INSTALL EQUIPMENT
PRESS RIGHT SIDE SUTTON
< BACK INSTALL>
A03202
Fig. 23 - INSTALL
This menu item will perform start-up process in order to learn all
equipment in system. Press right side button to initiate the
process. See Fig. 23.
SETUP MENU
SETUP
THERMOSTAT
FURNACE
HEAT PUMP
ACCESSORIES
SYSTEM MAINTENANCE
< BACK SELECT>
Fig. 24 -SETUP MENU A03203
This menu has several layers, allowing modification of
equipment settings. No settings will need to be made at
equipment (i.e. DIP switches on a furnace). All configuration
settings made effective from this menu will override equipment
configuration made by dip switches. Fig. 24 shows all the
information that can be found in the SETUP menu.
SETUP -- THERMOSTAT
AUTO MODE SETUP:
• Enable/Disable Auto Changeover mode
(default=Enable).
• Auto Changeover Time may be adjusted 5 to 120
minutes, (default = 30 minutes).
When Auto mode is enabled (factory default) a change from heat
to cool (or vice versa) will not occur until an opposite mode
demand has existed for 30 minutes. If the set point is changed, the
30 minute timer is deleted.
HEAT/COOL DEADBAND:
• 0 to 6 degrees, (default =2°).
A minimum difference of 2 ° is enforced between heating and
cooling desired temperatures. This will allow one setting to
"push" the other to maintain this difference.
10

OFFSETS:
This option allows calibration (or deliberate miscalibration) of the
temperature and humidity sensors. These offsets are added to the
actual temperature/humidity values (defaults=0).
• Zone 1 Offset: -5 to +5 degrees.
• Outside Temp Offset: -5 to +5 degrees.
• Humidity Offset: -10 to +10 percent.
CYCLES PER HOUR:
• Maximum cycles per hour = 4 (default) or 6.
• Anticipator = 1 to 9 (default=3). This adjusts sensitivity
to temperature changes. 1 = most sensitive. 9 = least
sensitive.
• If space is over-conditioning, increase the anticipator
setting.
• If space is under-conditioning, decrease the anticipator
setting.
PROGRAMMING:
• ON (default)- allo``vs program schedule to be set by
user.
• OFF - system becomes non-programmable
• Periods Per Day = 2 or 4 (default=4)
• Programmable Fan On/Off (default=Off). If ON is
selected, fan can be set to Auto, Low, Med. or High.
SMART RECOVERY:
• On or Off, (default=On)
Applies to programmable operation only. Will start recovery 90
minutes prior to schedule change in both heating and cooling
mode. Refer to operational information for more detail.
ENGLISH/METRIC DISPLAY
• °F or °C, (default = °F)
RESET FACTORY DEFAULTS:
Program Schedule:
• Yes/No to reset back to Energy Star default Time and
Temp schedules.
User Settings:
• Yes/No to reset the user settings in the Advanced Setup
to factory default settings.
Install Settings:
• Yes/No to reset install settings in Install/Service menus
to factory default settings.
Last 10 Faults:
• Yes/No to reset last 10 faults under Service Info menu.
SETUP -- FURNACE
Upon afirst time start-up of the Infinity Control, the furnace DIP
switch settings will be copied to the furnace setup menu. Any
changes can then be made from the Infinity Control.
AIRFLOW:
• COMFORT (default)
• EFFICIENCY
Selects the airflow of the furnace when heating. EFFICIENCY
is the airflow used to meet specified ratings, COMFORT is a
decreased airflow used to increase the output air temperature and
provide increased comfort.
AC AIRFLOW
• COMFORT (default) - cooling airflow is varied
depending on humidity and temperature demands
settings. This selection enables the full dehumidify and /
comfort capabilities of the system. When COMFORT
is not selected, the unit will not run reduced aiflo,,vs for
dehumidification.
• EFFICIENCY - fixed airflow used to achieve specified
ratings - no dehumidification airflow reduction. This
is nominally 350 CFM/ton, but will vary if a 2-stage
outdoor unit is used.
• MAXIMUM - 400 CFM/ton. Dehumidify features are
not active when set to maximum.
DEHUM AIRFLOW
• NORMAL (factory default) - When equipment is
running to dehumidify, the airflow is allowed to adjust
to aminimum to satisfy the dehumidification call.
• HIGH - Minimum airflo``vduring the dehumidify
mode is increased to reduce duct and register sweating.
LOW HEAT RISE
• ON
• OFF (default)
Set to ON if the system contains a bypass humidifier. The ON
setting ,,vill increase the furnace low heat airflov<
STAGING
• SYSTEM (default)
• LOW
• HIGH
• FURNACE
Controls the staging of the furnace. SYSTEM setting will allow
the Infinity Control to determine furnace staging. LOW will only
run the low stage of furnace heat. HIGH will only run the high
stage of furnace heat. FURNACE will allow the furnace
algorithm to control staging
OFF DELAY:
• 90 seconds
• 120 seconds (default)
• 150 seconds
• 180 seconds
Amount of time the blower will continue to run after heating has
shut off.
11

LOCKOUT TEMP:
• NONE (default)
• +5 to 55 deg F
Appears on dual fuel systems only (furnace with heat pump).
Outside temperature above which the furnace will NOT run
except for defrost. During heat pump defrost cycle, the furnace
will operate above the furnace lockout temperature. Once in
defrost, the system will satisfy the heating demand with the gas
furnace.
SETUP -- FAN COIL
HP/AC AIRFLOW:
• COMFORT (default) Cooling airflow is varied de-
pending on humidity and temperature demand settings.
This selection enables the full dehumidify and comfort
capabilities of the system. When COMFORT is not
selected, the unit will not run reduced airflows for de-
humidification. Heat Pump airflow is varied depending
on outdoor temperature to maximize comfort.
• EFFICIENCY - fixed airflow used to achieve specified
ratings - no dehumidification airflow reduction. This
is nominally 350 CFM/ton, but will vary if a 2-stage
outdoor unit is used.
• MAXIMUM - 400 CFM/ton. Dehumidify features are
not active when set to maximum.
DEHUM AIRFLOW:
• NORMAL (factory default) - When equipment is
running to dehumidify, the airflow is allowed to adjust
to a minimum to satisfy the dehumidification call.
• HIGH - Minimum airflow during the dehumidify
mode is increased to reduce duct and register sweating.
HEATER SIZE:
• (choices dependent upon fan coil model)
This will show the heater size entered during the start-up process.
This value can be changed to another value (limited by the model
number of the fan coil). If the electric heater is self-identifying,
this value is not shown.
SETUP -- HEAT PUMP /AC
COOLING LOCKOUT:
• NONE (default)
• 45 ° F.
• 50"E
• 55 ° E
Outside temperature below which cooling will not be provided.
LOW AMBIENT COOLING:
• NO (default)
• YES
Selecting YES will enable the low ambient cooling operation in
the outdoor unit. This setting is only available with
communicating outdoor units and with Cooling Lockout set to
NONE.
ENTERED SIZE:
• (dependent on indoor unit model)
Size of the outdoor unit entered during the start-up process. If the
outdoor unit is a communicating model, this value will not be
shown. This size can be changed here but is limited to sizes that
the indoor unit can handle.
DEFROST INTERVAL:
• 30 minutes
• 60 minutes
• 90 minutes
• 120 minutes (default)
• Auto-Defrost interval optimized by outdoor control
(default fnr communicating HP)
Time interval at which defrost cycles can occur on a heat pump.
ELECT HEAT LOCKOUT
• NONE (default)
• +5 to 55 deg. F
Outside temperature above which the electric heat will not
operate
HEAT PUMP LOCKOUT (BALANCE POINT TEMP):
In a dual fuel system this option will be available in place of
Electric Heat Lockout Temp.
This is the outdoor temperature below which the heat pump ,,vill
not operate.
HIGH COOL LATCH:
• NONE (default)
• 80 - 110 deg F
Outside temperature above which only the high speed (of a
2-stage outdoor unit) will run when cooling.
HIGH HEAT LATCH
• OFF (default)
• ON 2 -stage heat pump runs only high stage heating
12

SETUP -- ACCESSORIES
FILTER TYPE:
• MEDIA (i.e. TrueSense" )
• EAC
• MEDIA+EAC (i.e. TrueSense" )
(?LEAN INTERVAL: 30 to 180 days (of actual blower
operation). (Default = 90)
Interval at which the (;lean Filter notification will turn on.
Applies to EAC filter selection only.
HUMIDIFIER INSTALLED:
• NO
• YES
If YES, indicates to the system whether a humidifier is installed
and enables humidification functions.
CHANGE PAD INTERVAL: 1 to 24 months (default=12
months)
Interval at which the Change Humidify Pad notification will be
displayed.
HUMIDIFY WITH FAN:
• NO (default)
• YES
If YES, the humidifier will turn on if there is a humidify demand
present. The fan will turn on to Low speed if the fan setting is
Auto.
VENTILATOR:
NOTE:Only appears if ventilator is installed.
(;LEAN INTERVAL:
• 60 to 180 days of actual operation (default=90
Interval at which the Clean Ventilator Pre-filter notification will
turn on.
UV LIGHTS INSTALLED:
• NO
• YES
If YES. indicates to the system whether UV lights are installed.
CHANGE INTERVAL:
• 6 to 48 months operation time (default=12 months)
Interval at which the Change UV Lights notification will be
displayed.
SETUP -- SYSTEM MAINTENANCE
REMIND OWNER OF ROUTINE MAINTENANCE EVERY:
This setup is used to adjust the tinmr interval in which the normal
System Maintenance notification is turned on for the homeowner.
Range =
• OFF
• 6 to 24 months, (default=12 months)
SETUP -- UTILITY SAVER
COOLING:
• Turn off, Low Stage
This setup is available only if the equipnmnt has a utility saver
input (refer to equipment Installation Instructions.) This setup
controls the response of the equipment when the utility saver
input is active, m
/
The choices include:
• Turn Off, (equipment turns off)
• Low Stage (available if the AC/heat pump is a 2-stage
model, runs low speed only)
13

CHECKOUT MENUS
CHECKOUT
FURNACE
HEAT PUMP H EATING
HEAT PUMP COOUNG
HUMIDIFIER
VENTILATOR
< BACK SELECT>
Fig. 25 -CHECKOUT MENU A03204
The Checkout menu will show the equipment installed in the
system. A sample checkout menu is shown in Fig. 25.
CHECKOUT -- FURNACE OR GAS PAC
Make sure the furnace is properly installed before continuing.
•LOW HEAT RUNTIME: 5 min.
• HIG-H HEAT RUNTIME: 5 min.
This menu item allows the furnace to be exercised. First. a low
heat rnntime and high heat rnntime are selected. Range =5-120
min.
If only the low heat is to be exercised:
The furnace will execute its ignition start-up sequence. This
sequence will be displayed on the Infinity Control screen. After
the gas valve and blower motor turn on, the screen will
automatically change to "FURNACE CHECK" and show the
current operating status of the furnace.
CHECKOUT--- ELECTRIC HEAT
• ELECTRIC HEAT RUNTIME: 5 min., Default time =
5 min., Range = 0 - 120 min.
If you have a fan coil with electric heaters, this menu item will
allow the heaters to be exercised.
With self-identifying electric heaters, three stages of electric heat
are available to be exercised in any combination. Non-identifying
heaters will only provide one stage of heat.
Enter the run time (in minutes) of each stage of heat to be
exercised then press START (right-side button). The display will
change to show the fan coil's operating status.
CHECKOUT -- HEAT PUMP HEATING
• HIGH HEAT RUNTIME: 5 min.
• LOW HEAT RUNTIME: 5 min.
• DEFROST: NO
The heat pump heating mode can be exercised with this menu
option. With a 2-stage heat pump, a low heat runtime and a high
heat runtime are independently selectable to exercise. A defrost
cycle is also selectable. Default time = Fixed 5min. minimum,
range = 5- 120 min.
NOTE: Airflows during Checkout modes are fixed to the
Efficiency setting and are independent of other airflow settings.
To view airflows for normal heat pump heating mode, exit the
Checkout screen and apply a heating demand to the system.
CHECKOUT -- HEAT PUMP COOLING OR AC
COOLING
• HIGH COOL RUNTIME: 5 min.
• LOW COOL RUNTIME: 5 min.
The heat pump cooling mode (or AC cooling mode) can be
exercised with this menu option. With a 2-stage heat pump or
AC unit, a low cool runtime and a high cool runtime are
independently selectable to exercise. The display ,,vill change to
show the heat pump or AC operating status.
Default time = Fixed 5 min. minimum, range = 5 - 120 rain.
NOTE: Airflows during Checkout modes are fixed to the
Efficiency setting and are independent of other airflow settings.
To view airflows for normal heat pump heating mode, exit the
Checkout screen and apply a heating demand to the system.
CHECKOUT -- HUMIDIFIER
• OFF
• ON
The humidifier can be exercised On and Off with this menu
option.
CHECKOUT -- VENTILATOR
SPEED:
OFF
LOW
HIGH
The ventilator can be exercised through all of its operating speeds
with this menu option.
CHECKOUT -- SYSTEM ACCESS MODULE (SAM)
RADIO CHECK:
This will perform a radio check of the SAM. Three messages will
be sent and received and can take up to 15 minutes to complete.
SAM RADIO CHECK SAM_ECK ]
CHECK CAN TAKE UP TO II
15 MINUTES MESSAGE 1 SENT
MESSAGE 1 RECEIVED
MESSAGE 2 SENT
MESSAGE 2 RECEIVED
3 MESSAGES WILL BE MESSAGE 3 SENT
SENT AND RECEIVED MESSAGE 3 RECEIVED
< RACK CONITIN_IF> < EACK I
d
Fig. 26 -SAM RADIO CHECK MENU
A04092
PROFILE UPDATE:
This will update the computer servers with the current equipment
configuration. If equipment changes, performing a Profile
Update will ensure the server has the latest system information.
14

SERVICEMENUS
TheServiceInfomenuwillonlyshowtheequipmentinstalledin
thesystem.Belowisasampleusingafurnaceandaheatpump
(dualfuel).AsampleservicemenuisshowninFig.27.
SERVICE INF©
FURNACE STATUS
HEAT PUMP STATUS
LAST 10 SYSTEM EVENTS
RUN /FAULT HISTORY
TODAY'S DATE
MODEL /SERIAL NUMBERS
SERVICE PHONE NUMBER
< BACK SELECT>
AOS205
Fig. 27 -SERVICE INFO MENU
SERVICE -- FURNACE STATUS OR GAS PAC STATUS
The Status screens will show all of the current operating
parameters of each installed piece of equipment.
HEAT STAGE:
• OFF, LOW. HIGH
Displays stage of heat that the furnace is currently delivering.
AIRFLOW CFM:
• (furnace model dependent)
Cubic Feet per Minute of air the blower is currently delivering.
LEAVING AIR TEMP:
This sensor is NOT required. However, if LAT sensor is
connected to the Damper Control Module, the sensor will read
leaving air temperature of the furnace.
INDOOR COIL TEMP:
This sensor is NOT required. However, if HPT sensor is
connected to the Damper Control Module, the sensor will read
temperature at that location (i.e. if placed in return-air, will read
return-air temperature).
INDUCER RPM (90% FURNACES ONLY):
• Inducer motor RPM value.
BLOWER RPM:
• Blower motor RPM value.
STATIC PRESS:
• Inches of water. Displays static pressure that the furnace
is currently experiencing.
LOCKOUT TIMER:
• Seconds
If a lockout timer is active, this will show the current time value.
See furnace manual for details on lockout timers.
SERVICE -- FAN (,'OIL STATUS
ELECTRIC HEAT:
• OFF, LOW, MED, HIGH
Displays stages of electric heat that the fan coil is currently
delivering.
AIRFLOW CFM:
• (fan coil model number dependent)
Cubic Feet per Minute of air the blower is currently delivering.
LEAVING AIR TEMP:
This sensor is NOT required. However, if LAT sensor is
connected to the Damper Control Module, the sensor will read
leaving air temperature of the fan coil.
INDOOR COIL TEMP:
This sensor is NOT required. However, if HPT sensor is
connected to the Damper Control Module. the sensor will read
temperature at that location (i.e. if placed down stream from
evaporator coil, and before electric heat, will read coil leaving air
temperature).
BLOWER RPM:
• Blower motor RPM value
STATIC; PRESS:
• Inches of water
Displays static pressure that the fan coil is currently experiencing.
SERVICE -- HEAT PUMP /AC STATUS
STAGE: (HEAT / COOL):
• OFF. LOW, HIGH
Displays stage of heating or cooling that the Heat Pump/AC is
delivering.
DEFROST:
• NO, YES
Displays status of defrost mode if heat pump.
AIRFLOW CFM:
• Indoor unit CFM measurement.
LEAVING AIR TEMP:
This sensor is NOT required. However, if LAT sensor is
connected to the Damper Control Module. sensor will read
leaving air temperature of the indoor unit.
OUTDOOR COIL TEMP:
• Degrees F.
Temperature of the outdoor unit coil (only available on 2-stage
communicating outdoor units).
BLOWER RPM:
• RPM feedback from indoor motor.
STATIC; PRESS:
• Static pressure of indoor unit.
15

SERVICE-- LAST 10 SYSTEM EVENTS
This screen will show last i0 events that occurred throughout the
system. Each entry has the time and date incident recorded.
Service technician should enter current date in "TODAY'S
DATE" menu section BEFORE checking and logging the last 10
system events.
Each entry has a two-letter acronym preceding the event name to
identify which piece of equipment generated the event. This event
history can be cleared under Thermostat Setup, Reset Factory
Defaults.
HP = Heat Pump
AC = Air Conditioner
FN = Furnace
FC = Fan (;oil
SPP = Packaged product
SAM = System Access Module
SERVICE -- RUN /FAULT HISTORY
The indoor unit and outdoor unit (if communicating) have the
following histories:
NOTE: For Critical Fault Screens, see Troubleshooting section in
this document.
RESETTABLE FAULTS:
• Fault counters for each piece of equipment that can be
reset.
CYCLE COUNTERS:
• Number of heat/cool/power cycles the unit has
performed.
RUN TIMES:
• Lifetime hours of operation in heating, cooling, and
how long the unit has been powered.
SERVICE -- TODAY'S DATE
This menu item allows the installer to enter the current date. It is
used for time/date stamping of system faults. This should be
entered every time prior to viewing "LAST 10 SYSTEM
EVENTS" section.
SERVICE -- MODEL /SERIAL NUMBERS
This menu item allows the installer to view the model number
and serial number (if available) of all communicating pieces of
equipment in the system.
SERVICE -- SERVICE PHONE NUMBER
This menu item allows the installer to enter a name and phone
number that the homeowner can call for future service of the
system. This name and phone number will appear to the
homeowner whenever aservice reminder pop-up message is
displayed (i.e. Change Filter, etc.)
To edit:
Use Temp +/- button to move cursor left and right.
Use Time +/- button to select numbers and letters.
Use Scroll button to move up and down between
NAME and NUMBER.
OPERATIONAL INFORMATION
CONTINUOUS FAN OPERATION
Pressing FAN button will scroll through the following:
• AUTO = No fan operation except during equipment
operation.
• LOW = Approximately 50% of High Speed operation.
• MED = Half way between High and Low speed
operation.
• HIGH = Highest of either High Heating or High
Cooling CFM.
Continuous fan operation is programmable. The programming
option must be enabled in the Thermostat Setup. See the
Homeowner's Manual for detailed instructions on programming
the fan.
FIVE-MINUTE COMPRESSOR TIMEGUARD
This timer prevents compressor from starting unless it has been
off for at least 5 minutes. It can be defeated by simultaneously
pressing the Fan and Temp + buttons.
EMERGENCY HEAT (FOR HEAT PUMP APPLICATIONS)
To activate Emergency Heat, you must press and hold the HEAT
button for 3 seconds to activate.
KEYPAD LOCKOUT
Keypad can be locked by pressing "Fan" and "Humidity/Oat"
buttons at the same time for 3 seconds. When keys are locked, a
lock symbol will appear in the upper left corner of screen. Follow
same procedure to unlock keypad.
HEAT AND COOL LED
The Heat and Cool LEDs will pulsate during actual equipment
operation.
EQUIPMENT CYCLE TIMER (ADJUSTABLE 4-6 CYCLES
PER HOUR)
This timer prevents the start of a heating or cooling cycle until 15
(or 10) minutes after the last start of the same cycle. Its function is
to assure that the equipment is not cycled more than the selected
times per hour. This timer is adjustable from 4 to 6 cycles per
hour. This timer is defeated for one cycle when the desired
temperature is manually changed. It can also be defeated for one
cycle by simultaneously pressing the Fan and Temp + buttons.
TEN-MINUTE STAGING TIMER
In multistage heating or cooling, this timer prevents any higher
stage from turning on until the preceding stage has been on for 10
minutes.
In duel fuel systems, the staging timer is 15 minutes between heat
pump and gas furnace operation.
THREE-MINUTE MINIMUM ON TIME
In normal operation, when a stage turns on, it will remain on for a
minimum of three minutes. If the set point is changed, this timer
is automatically cancelled, allowing the equipment to turn off
immediately when the demand is removed.
16

HEAT/COOL SET POINTS (DESIRED TEMPERATURES)
A minimum difference of 2 ° (default) is enforced between
heating and cooling desired temperatures. This is done by
allowing one setting to "push" the other to maintain this
difference. This difference is adjustable via the Install/Service
menu under Thermostat Setup.
AUTO CHANGEOVER
When Auto mode is enabled (factory default) a change from heat
to cool (or vice versa) will not occur until an opposite mode
demand has existed for 30 minutes. If the set point is changed, the
30-minute requirement is defeated. This Auto Changeover time
is adjustable via the Install/Service menu under Thermostat
Setup. Range = 5 - 120 min.
SMART RECOVERY
With Smart Recovery selected (factory default), transition out of
setback begins 1.5 hours before selected recovery time and
gradually adjusts room temperature so desired temperature will be
achieved at selected recovery time. It operates in both heating and
cooling. This only applies to programmable operation.
For example: Set back temperature in heating is 64" F. Smart
Recovery set point is 70 ° F at 7:00 a.m. At 5:30 a.m, the control
calculates the required temperature recovery rate (recovery temp -
set back temp or current temp if greater) /90 minutes. If the
current temp at 5:30 = 66 ° F, the recovery rate = (70 - 66)°F/90
minutes = 0.04 degrees per minute. In order to achieve set point,
the control ramps up the set point 0.04 °F /minute from 5:30
a.m. until 7:00 a.m.
NOTE: Temperatures should not be set back so far that the
equipment cannot recover in 90 minutes.
MEDIA FILTER
If MEDIA or MEDIA+EAC is installed in the indoor unit. the
system will perform a static pressure check of the system every 24
hours at 1:00 p.m. to monitor filter accumulation (TrueSense _
Dirty Filter Detection) or whenever power is applied to the
system or the system is transitioned from Off to Cool or Heat
modes. The blower will run at a medium airflow for one minute.
This system operates by setting a base line static pressure based
on the highest airflow the system could mn (this could be heat or
cool airflow.) The measurenmnt is taken at a low airflow and
then calculated up to the highest airflow the system could see.
FROZEN (;OIL DETECTION
During cooling operation, the user interface will monitor the
static pressure of the system. If the static pressure is increasing
dramatically, the user interface will turn off cooling for up to one
hour. record fault in the "Last 10 Events" screen, and run the fan
at a reduced airflow. The user interface will continue to monitor
the static pressure. If it is reduced before one hour has elapsed, it
will resume cooling operation. After one hour, cooling will be
resumed.
DEHUMIDIFY OPERATION
Once a target cooling humidity set point is selected in the
Advanced Setup COOLING HUMIDITY screen, two other setup
options affect Dehumidify operation: AC AIRFLOW and
DEHUMIDIFY.
AC AIRFLOW: This setting is located in the Furnace or Fan
Coil Setup screens and must be set to COMFORT to enable
dehumidify operation. If set to EFFICIENCY or MAXIMUM,
no special dehumidify operation will take place. Cooling will
only operate to satisfy the space temperature set point.
DEHUMIDIFY: Located in the Cooling Humidity screen of the
Advanced Setup, this option has 2 settings: ON and OFF.
If DEHUMIDIFY is set to ON (factory default), and the AC
Airflow is set to COMFORT, then the cooling unit will be
allowed to overcool the space up to 3 ° if the humidity level is
above the cooling humidity target set point.
The amount of overcooling allowed varies with the
dehumidification demand, the cooling demand, and the actual
space temperature. More overcooling is allowed with greater
dehumidification demand.
When the space temperature is at or above 75 ° and the
dehumidify demand is high, overcooling up to 3 ° is allowed.
As the space temperature approaches 70 °, less overcooling is
allowed. At 70 " space temperature, no more overcooling is
allowed no matter how great the dehumidify demand. This is
done to protect the equipment.
If DEHUMIDIFY is set to OFF and AC Airflow is set to
COMFORT, normal dehumidification mode is enabled. For
normal dehumidification, no overcooling is allowed when the
cooling humidity is above the target set point, but airflow will be
reduced during a normal cooling mode to reduce humidity. The
airflow depends on the amount of dehumidify demand. If AC
Airflow is set to EFFICIENCY or MAXIMUM, all
dehumidification functions are defeated.
DUAL FUEL SETUP /OPERATION
FURNACE LOCKOUT -- (in FURNACE SETUP menu) is
the outside temperature above which the furnace will not run
(otherwise known as the aux heat lockout).
HEAT PUMP LOCKOUT -- (in HEAT PUMP SETUP) is the
outside temperature below which the heat pump will not run
(otherwise known as the balance point).
These values can be set identical to each other. If they are not
identical, the system will stage up and down normally from heat
pump to furnace when the outside temperature is between these
lockout settings. The user interface will not allow the furnace
lockout setting to be above the heat pump lockout setting.
The factory default settings for both of these is NONE (no
lockouts). Even though a furnace lockout temperature may be set,
the system will still use the furnace in defrost operation, and will
complete the heating cycle using the furnace after a defrost has
finished.
17

TROUBLESHOOTING
PleaserefertotheTroubleshootingGuideavailableonHVACPartnersformoredetail.
Infinity Control does not power up.
1. Recheck wiring to ABCD on all devices.
2. Make sure all colors match for every terminal.
3. Make sure power is applied to the indoor unit, and the amber LED is lit on indoor control circuit board.
4. Check for 24VAC between the C and D terminals at Infinity Control terminal connector and Damper Control Module.
5. Check fuse on indoor unit's circuit board.
Display says "Indoor Unit Not Found"
1. Recheck wiring to ABCD on all devices.
2. Make sure all colors match for every terminal.
3. Press left-side button to try again.
4. If display still reads "Indoor Unit Not Found", disconnect all devices from ABCD and connect User Interface directly to indoor unit.
Display says "Outdoor Unit Not Found", and I have a two-stage communicating outdoor unit:
1. Recheck wiring to ABCD connector on outdoor unit.
2. Make sure all colors match for ever 5, terminal.
3. Check for 24VAC between the C and D terminal connector of outdoor unit.
I made a mistake on the start-up screens, and hit the right-side button to get to the run mode. How do I get back to
start-up?
1. Press the ADVANCED button for at least 10 seconds.
2. Install/Service menu will appear.
3. Scroll down to the INSTALL selection.
4. Press the right-side button; the screen will prompt you to press the right side again to re-install the system.
18

SYSTEMMALFUNCTIONSCREEN
OUTSIDE: 84 ° I FAN: AUTO
71 °
HVAC SERVICE
1-800-555-1212
Fig. 28 - System Malfunction Screen
A04028
FAN COIL
(;ode 37 -Heater output sensed On when not energized
(;ode 41 - Blower Motor Fault (ventilator, humidifier,
dehumidifier, outdoor unit will be turned oft)
Code 44 - Motor Communication Fault (ventilator, humidifier,
dehumidifier, outdoor unit will be turned off)
(:ode 45 -Control failure
FURNACE
(;ode 13 - Limit Circuit Lockout
(;ode 14 - Ignition Lockout
Code 15 - Blower Motor Lockout (ventilator, humidifier,
dehumidifier, outdoor unit will be turned off)
Code 21 - Gas Heating Lockout
(;ode 22 - Abnormal Flame Proving Signal
(;ode 23 - Pressure Switch Did Not Open
Code 24 - Secondary Voltage Fuse Open
Code 33 - Limit Circuit Fault AND high heat only is active
Code 41 - Blower Motor Fault (cooling mode only) (ventilator,
humidifier, dehumidifier, outdoor unit will be turned off)
Code 45 - Control Circuitry Lockout
NOTE:For codes 13.14 and 21, the system will use heat pump
heating exclusively if available. When the error code is cleared or
disappears, furnace heating will resume if still requested.
OUTDOOR UNIT
Code 25 - Invalid model plug
Code 45 - Control Failure
Code 47 - No 230V at unit
Code 73 - Contactor shorted
Code 74 - No high voltage at compressor
Code 76 - Low stage didn't start three times
Code 78 - High stage didn't start three times
Code 81 - Thermal lockout in low stage - 4 hrs.
Code 82 - Thermal lockout in high stage - 4 hrs.
Code 83 - Low Pressure Lockout - 4 hrs.
Code 84 - High Pressure Lockout - 4 hrs.
Code 85 - Low contactor open
Code 86 - Low contactor shorted
Code 87 - High contactor open
USER INTERFACE
• Temp sensor failed, loss of communication with smart
sensor, smart sensor fault. "NO SENSOR DATA"
shown
• Indoor unit communication fault
• Outdoor unit communication fault
• Packaged product communication fault
• NIM communication fault
• SAM communication fault
• Possible Frozen Coil
The user can press the right side button to dismiss the notice. The
regular run mode screen will then appear except "SYSTEM
MALFUNCTION" will appear in place of the day/time. If the error
has not disappeared within 24 hours, the above display will return.
If the error code disappears, "SYSTEM MALFUNCTION" will
disappear and the day/time will reappear.
19

Copyright 2005 Carrier Corp • 7310 W Morris St • Indianapo{is, iN 46231 Printed in ....
Manufacturer reserves the right to change_ at any time, specifications and designs without notice and without obligations,
2O
edition date: 10/05 Catatog No:UIDO1-2SI
Replaces:UID01 - 1Sl