Carrier Infinity SYSTXCCUID01-B User manual

SYSTXCCUID01-- B
InfinitytControl
Installation Instructions
HOLD COOL
HEAT
OFF
A03149
Fig. 1 -- InfinitytControl
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.........................
INTRODUCTION 2...................................
INSTALLATION AND START--UP OVERVIEW 2..........
INSTALLATION 2....................................
INSTALLING INFINITY CONTROL 4....................
INITIAL POWER--UP 6................................
QUICK START 7.....................................
INSTALL / SERVICE MENUS 8.........................
EQUIPMENT SUMMARY MENU 8......................
INSTALL MENU 8....................................
SETUP MENU 9......................................
CHECKOUT MENUS 12...............................
SERVICE MENUS 13..................................
OPERATIONAL INFORMATION 14.....................
TROUBLESHOOTING 16..............................
SYSTEM MALFUNCTION SCREEN 17..................
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all
local electrical codes during installation. All wiring must conform
to local and national electrical codes. Improper wiring or
installation may damage the Infinity System. Recognize safety
information. This is the safety--alert symbol . When you see
this symbol on the equipment and in the instruction manual, be
alert to the potential for 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.

2
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 multi stage
for maximum flexibility, efficiency, and comfort. They support
controlled ventilation, humidification, dehumidification, and air
quality control. Either an Infinity (communicating), or a standard
24VAC 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 for 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.
SInstall Infinity Control according to this instruction.
SInstall indoor unit, outdoor unit, and accessories accord-
ing to their instructions.
SWire complete system according to this instruction.
SSetup, commission, and operate system according to this
instruction to assure a smooth and trouble free start--up.
INSTALLATION
Check Equipment and Job Site
Inspect equipment. File claim with shipping company prior to
installation if shipment is damaged or incomplete.
Infinity Control Location and Wiring Considerations
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury
or death.
Disconnect power before routing control wiring.
!WARNING
All wiring must comply with national, local, and state codes.
Infinity Control Location
The Infinity Control User Interface is the command center for 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:
SApproximately 5 feet (1.5 meters) from the floor.
SClose to or in a frequently used room, preferably on an
inside partitioning wall.
SOn a section of wall without pipes or ductwork.
The Infinity Control and Room Sensors should NOT be mounted:
SClose to a window, on an outside wall, or next to a door
leading to the outside.
SExposed to direct light or heat from a lamp, sun, fire-
place, or other temperature--radiating objects which
could cause a false reading.
SClose to or in direct airflow from supply registers.
SIn 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 S1 and S2 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.
Typically, one remote sensor is used but, multiple sensors may be
used and averaged in some applications. Averaging requires a
special series--parallel wiring method with a specific number of
sensors. See Fig. 2. 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 & S2 connection on User Interface backplate is now
used for Remote Room Sensor, NOT for OAT Sensor hookup.
Sensor 1 Sensor 2
Sensor 3 Sensor 4
S1 S2
A07116
Fig. 2 -- Remote Room Sensor -- Parallel Wiring
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)
CCUID01 -- B

3
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. 3 through 10. 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. 4). The
backplate containing the recessed terminal block can be mounted
directly to the wall by cutting a hole 1 1/2” (38.1 mm) wide by 2
1/8” (54 mm) 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. 5). Attach backplate as shown in Fig. 8, 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. 6) 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. 9 and 10 for a larger decorative backplate
P/N SYSTXXOLBP01 (5.75”/146 mm wide x 6”/152 mm high),
which can be ordered separately.
A03185
Fig. 3 -- InfinitytControl
A03186
Fig. 4 -- Recessed Mount Backplate
A03187
Fig. 5 -- Surface Mount Backplate
A04017
Fig. 6 -- Thin Decorative Backplate
Recessed terminal
block in wall 1
1
/ 2 ˝
wide by 2
1
/ 8 ˝high
Recessed Mount
Interlocking Tabs (4)
A03190
Fig. 7 -- Recessed Mount Assembly
CCUID01 -- B

4
Surface Mount
Backplate to wall
Interlocking Tabs (4)
A03191
Fig. 8 -- Surface Mount Assembly
A03188
Fig. 9 -- Large Decorative Backplate
A03192
Fig. 10 -- Decorative Backplate Assembly
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.
!WARNING
1. Turn off all power to equipment.
2. If an existing User Interface or control is being replaced:
a. Remove existing control from wall.
b. Disconnect wires from existing control.
c. 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.
3. Select Infinity Control mounting plastic (recess mount or
surface mount and decorative backplate if desired).
4. 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.
5. Drill two 3/16” (4.8 mm) mounting holes in wall where
marked.
6. Secure mounting plastic to wall using two screws and an-
chors provided.
7. Adjust length and routing of each wire to reach each wire
entry on the connector backplate. Strip 1/4” (6.4 mm) of in-
sulation from each wire.
8. Match and connect thermostat wires to proper terminals on
User Interface backplate. See wiring diagram Fig. 12, 13,
and 14.
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. 11.)
ABCD
A03193
Fig. 11 -- 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.
CAUTION
!
CCUID01 -- B

5
9. Push any excess wire into the wall. Seal hole in wall to pre-
vent any air leaks. Leaks can affect operation.
10. Attach Infinity Control to the mounting plastic by lining up
the plastic guides on the back of the control with the open-
ing on the mounting plastic and push on.
11. Perform installation of all other system equipment (i.e.
dampers, humidifier, ventilator, UV lights, etc.)
12. Turn on power to equipment.
See wiring diagram, Fig. 12, 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. 13, 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--communicating 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.
A
B
C
D
A
B
C
D
User Interface
Green
Yellow
White
Red
OAT
Optional Remote
Room Sensor
HUM
COM
24V
Humidifier
Connection
S2
S1
A
B
C
D
ABCD
Connections
Communicating
AC or H P
Green
Yellow
White
Red
OAT
Sensor
(Optional)
Variable-Speed
Furnace/ Fan Coil
A03146
Fig. 12 -- Universal Four--Wire Connection Diagram
A
B
C
D
A
B
C
D
C
Y
ABCD
Connection
User Interface
1-Spd.
Non-Communicating
AC
Green
Yellow
White
Red
Optional Remote
Room Sensor
HUM
COM
24V
Humidifier
Connection
Y/Y2
S2
S1
OAT OAT
Sensor
Variable-Speed
Furnace/Fan Coil
A07022
Fig. 13 -- Connection Diagram for Furnace or FE Fan Coil
w/1--Stage AC
A
B
C
D
A
B
C
D
ABCD
Connection
User Interface
1-Spd.
Non-communicating
HP
Green
Yellow
White
Red
Optional Remote
Room Sensor
HUM
C
Humidifier
Connection
Y
S2
S1
W2
Y
O
C
R
O
R
W
OAT
OAT
Sensor
Variable-Speed
Fan Coil
G
A07023
Fig. 14 -- Connection Diagram for FE Fan Coil with
Non-- Communicating 1--stage HP
Humidifier Connection
A 24VAC 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
CCUID01 -- B

6
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 will 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.
CAUTION
!
HOLD COOL
HEAT
SCHEDULE VACATION
PROGRAM
SCROLL
BASIC ADVANCED
SETUPS
Schedule
to program
temperature
schedule
Vacation
to start/end
vacation
Basic
to set time,
humidity
Advanced
for all other
settings
Scroll
up & down
Fan Button
Display Screen
(LCD)
Right-Side
Button
Heat Button
Cool Button
Temperature
(+/-) Button
System
On/Off Button
Basic & Advanced
Setup Buttons
Flip Down
Door
Left-Side
Button
Humidity/OAT
Button
Hold
Button
Time (+/-)
Button
Schedule & Vacation
Program Buttons
Up/Down
Scroll Buttons
A03194
Fig. 15 -- Functional Overview
INITIAL POWER--UP
NOTE: Refer to Functional Overview (see Fig. 15) 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.
Power Up Sequence
ESTABLISHING
COMMUNICATIONS
WITH EQUIPMENT
PLEASE WAIT
SOFTWARE
VERSION
INDOOR UNIT
SEARCHING FOR
INDOOR EQUIPMENT
WORKING
OUTDOOR UNIT
SEARCHING FOR
OUTDOOR EQUIPMENT
WORKING
A03195
Fig. 16 -- 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 communicating Variable--Speed Furnace /
Fan Coil with a 2--stage Air Conditioner / Heat Pump (including
Hybrid Heat).
The User Interface display will light up and indicate that it is now
“ESTABLISHING COMMUNICATIONS WITH EQUIPMENT
PLEASE WAIT”. The User Interface will automatically continue
by “SEARCHING FOR EQUIPMENT”, followed by
“SEARCHING FOR OUTDOOR EQUIPMENT” (see Fig. 16).
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 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
for Outdoor Unit Identification.
Selecting Outdoor Unit
OUTDOOR UNIT
NOT IDENTIFIED
SELECT TYPE: NONE
NONE, AC, HP
PRESS +/- TO MAKE
SELECTION
CONTINUE
OUTDOOR UNIT
ENTER HEAT PUMP
SIZE 36000 BTU
18000 TO 60000 BTU
PRESS +/- TO MAKE
SELECTION
BACK CONTINUE
OUTDOOR UNIT
HEAT PUMP
ENTER NUMBER OF
SPEEDS, 1 or 2: 1
PRESS +/- TO MAKE
SELECTION
BACK CONTINUE
A03196
Fig. 17 -- Selecting Outdoor Unit
If there is no communicating outdoor unit, the screen, shown in
Fig. 17, will 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 will appear (see Fig. 17). 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.
Selecting Electric Heater
ELECTRIC HEATER
NOT IDENTIFIED
ENTER SIZE: 5 KW
NONE, 5,10,15 KW
PRESS +/- TO MAKE
SELECTION
BACK CONTINUE
A03197
Fig. 18 -- Selecting Electric Heater
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. 18). 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.
CCUID01 -- B

7
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.
Hydronic Heat Applications
The --B non--zoned model of the Infinity Control supports 2 types
of Hydronic Heat applications:
1. Hot water coil in combination with an FE fan coil and heat
pump, or hot water coil as sole heat source with an FE fan
coil.
2. Non--zoned FE fan coil combined with radiant hot water
heat.
In either application, a Hydronic Heat kit should be installed in
place of an electric heater. See FE fan coil Product Data for
accessory part number. The system will identify that Hydonic Heat
has been installed during the initial commissioning process. The
system will treat the hot water coil as either auxiliary heat in a heat
pump application, or the sole heat source. Setup options for
Hydronic Heat applications are described in the Setup section of
this instruction.
Selecting Accessories
ACCESSORIES
HUMIDIFIER
INSTALLED? YES
PRESS +/- TO MAKE
SELECTION
BACK CONTINUE
ACCESSORIES
U.V. LIGHTS
INSTALLED? YES
PRESS +/- TO MAKE
SELECTION
BACK CONTINUE
ACCESSORIES
AIR FILTER TYPE:
EAC EAC
MEDIA
MEDIA + EAC
PRESS +/- TO MAKE
SELECTION
CONTINUE
AIR FILTER MEDIA TYPE HUMIDIFIER INSTALLED? U.V. LIGHTS INSTALLED?
A03198
Fig. 19 -- Accessories —UV Lights
Once the indoor and outdoor equipment have been found or
entered, the following screens will appear allowing the Installer to
select the “AIR FILTER TYPE; HUMIDIFIER INSTALLED”;
and “UV LIGHTS INSTALLED” (See Fig. 19). 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 1 – Filter Selection
INSTALLED FILTER MENU
SELECTION
1inchto4inchmedia MEDIA
High voltage EAC EAC
High voltage EAC + 1 to 4 inch media MEDIA + EAC
Infinity Air Purifier MEDIA
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.
Equipment Summary
EQUIPMENT SUMMARY
FURNACE 58MVB0100-12
AC 24ANA136A003
FILTER EAC
HUMIDIFIER YES
UV LIGHTS YES
NO YES
SETUP
COMPLETE!
SAVE
ALL SELECTIONS/
NO YES
A07247
Fig. 20 -- Equipment Summary
The “EQUIPMENT SUMMARY” screen will appear after
Accessories have been selected. This screen will give a summary 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. 20.)
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.
Static Pressure Check
STATIC
PRESSURE
CHECK
PLEASE WAIT
EXTERNAL STATIC
PRESSURE
MEASURED:
0.72 INCHES
AT 1200 CFM
CONTINUE >
A05000
Fig. 21 -- Static Pressure Check
This screen will appear after Setup is exited. The system will
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
TrueSensetdirty 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 (+/--) but-
ton.
7. Press SCROLL button (down) to highlight HUMIDITY.
CCUID01 -- B

8
8. Press the red HEAT button to select heating humidity.
9. Adjust desired heating humidity level using either (+/--) but-
ton.
10. Press the blue COOL button to select cooling humidity.
11. Adjust the desired cooling humidity level using ei-
ther(+/--)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 de-
sired 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 you a quick program schedule for ALL
DAYS of the week. For more information on how to create
customized schedules for every day, 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 WA K E
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 be-
gin 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
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. 22):
INSTALL/SERVICE
EQUIPMENT SUMMARY
INSTALL
SETUP
CHECKOUT
SERVICE
SOFTWARE VERSION 1
EXIT SELECT
A03200
Fig. 22 -- Install / Service Menus
NOTE: The INSTALL / SERVICE menu will automatically exit
after 60 minutes of no push button activity.
EQUIPMENT SUMMARY: Shows all equipment recognized by
and attached to the system.
INSTALL: Used when adding, changing out, or un--installing
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
This screen shows indoor unit type and model number, outdoor
unit type (and model number if a 2--stage unit), filter type and any
accessories that are installed are recognized. See Fig. 23.
EQUIPMENT SUMMARY
FURNACE 58MVB0100-12
AC 24ANA136A003
FILTER EAC
HUMIDIFIER YES
UV LIGHTS YES
NO YES
A07025
Fig. 23 -- Equipment Summary
INSTALL MENU
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. 24.
INSTALL
TO ADD, UNINSTALL OR
RE-INSTALL EQUIPMENT,
PRESS RIGHT SIDE
BUTTON
BACK INSTALL
A03202
Fig. 24 -- Install Menu
CCUID01 -- B

9
SETUP MENU
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. 25 shows all the information that can be found in the
SETUP menu.
SETUP
THERMOSTAT
FURNACE
HEAT PUMP
ACCESSORIES
SYSTEM MAINTENANCE
BACK SELECT
A03203
Fig. 25 -- Setup Menu
Setup -- Thermostat
Auto Mode Setup:
SEnable/Disable Auto Changeover mode (default=En-
able).
SAuto Changeover Time may be adjusted 5 to 120 min-
utes, (default = 30 minutes).
When Auto mode is enabled (factory default) a change from heat
to cool (or vice versa) will not occur until the current cycle is
satisfied and an opposite mode demand has existed for 30 minutes.
If the setpoint is changed, the 30 minute timer is deleted.
Heat/Cool Deadband:
S0to6_F/0to3.3_C, (default = 2_F/1.5_C)
The minimum difference enforced between heating and cooling
desired temperatures. This can allow one setting to “push” the
other to maintain this difference.
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).
STemperature Offset: --5_Fto+5_F(--2.8_Cto+2.8_C)
SOutside Temp Offset: --5_Fto+5_F(--2.8_Cto+2.8_C)
SHumidity Offset: --10 to +10%
Cycles Per Hour:
SMaximum cycles per hour = 4 (default) or 6.
SAnticipator = 1 to 9 (default=3). This adjusts sensitivity
to temperature changes. 1 = most sensitive, 9 = least sen-
sitive.
SIf space is over--conditioning, increase the anticipator
setting.
SIf space is under--conditioning, decrease the anticipator
setting.
Programming:
SON (default)-- allows program schedule to be set by user.
SOFF -- system becomes non--programmable
SPeriods Per Day = 2 or 4 (default=4)
SProgrammable Fan On/Off (default=Off). If ON is se-
lected, fan can be set to Auto, Low, Med, or High.
Smart Recovery:
SOn 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:
S_For_C, (default = _F)
Reset Factory Defaults:
Program Schedule:
SYes/No to reset back to Energy Star default Time and
Temp schedules.
User Settings:
SYes/No to reset the user settings in the Advanced Setup
to factory default settings.
Install Settings:
SYes/No to reset install settings in Install/Service menus to
factory default settings.
Last 10 System Events:
SYes/No to reset last 10 events under Service Info menu.
Setup -- Furnace
Upon a first 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:
SCOMFORT (default)
SEFFICIENCY
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:
SCOMFORT (default) -- cooling airflow is varied depend-
ing on humidity and temperature demands settings. This
selection enables the full dehumidify and comfort capa-
bilities of the system. When COMFORT is not selected,
the unit will not run reduced airflows for dehumidifica-
tion.
SEFFICIENCY -- fixed airflow used to achieve specified
ratings -- no dehumidification airflow reduction. This is
nominally 350 CFM/ton, but will vary if a 2--stage out-
door unit is used.
SMAXIMUM -- 400 CFM/ton. No dehumidification air-
flow reduction.
Dehum Airflow:
SNORMAL (factory default) -- When equipment is run-
ning to dehumidify, the airflow is allowed to adjust to a
minimum to satisfy the dehumidification call.
SHIGH -- Minimum airflow during the dehumidify mode
is increased to reduce duct and register sweating.
Low Heat Rise
SON
SOFF (default)
Set to ON if the system contains a bypass humidifier. The ON
setting will increase the furnace low heat airflow.
Staging
SSYSTEM (default)
SLOW
SHIGH
SFURNACE
NOTE: Controls the staging of the furnace. More staging options
will be available if furnace is capable of more stages. 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.
CCUID01 -- B

10
GT
erminal
This setup option selects desired operation when the R--G circuit
changes state on the furnace control board depending on setup.
SDISABLED (Default)
SFAN -- turns on fan to selected fan speed when G termi-
nal is energized. See Fig. 26.
SFAN SPEED -- select Low, Med, High for all zones
when G terminal is energized
SSHUTDOWN -- shuts off fan and equipment when initi-
ated. This function may be activated by a dry contact
from an external device such as a float switch or a relay.
User selects whether the contact is NC -- normally closed
(default) or NO -- normally open. User Interface displays
SYSTEM MALFUNCTION on screen and registers G
terminal shutdown event in Last 10 System Events. See
Fig. 27.
SGEN (generator input) -- displays GENERATOR MAL-
FUNCTION pop--up message when G is energized. This
function requires the addition of a Generator Self Test
Verifier (Part No. GSV200) which must be purchased
separately. Visit www.GeneratorVerifier.com for details
and ordering information. See Fig. 26.
R
G
FE Fan Coil or
Variable Speed Furnace
A07114
Fig. 26 -- G Input Wiring for Blower Operation or Generator
Malfunction with (--B) InfinitytControl
R
G
FE Fan Coil or
Variable Speed Furnace
A07115
Fig. 27 -- G Input Wiring for System Shutdown
with (--B) InfinitytControl (Contact type selectable;
Normally Closed (default) or Normally Open)
High Stage Timer
Minimum amount of time low stage must operate before high stage
is activated. Ten to 60 minutes. 10 = default
A demand of 5_F/2.8_C or more will override the staging timer.
Off Delay
S90 seconds
S120 seconds (default)
S150 seconds
S180 seconds
Amount of time the blower will continue to run after heating has
shut off.
Setup -- Fan Coil
HP/AC Airflow:
SCOMFORT (default) Cooling airflow is varied depend-
ing on humidity and temperature demand settings. This
selection enables the full dehumidify and comfort capa-
bilities of the system. When COMFORT is not selected,
the unit will not run reduced airflows for dehumidifica-
tion. Heat Pump airflow is varied depending on outdoor
temperature to maximize comfort.
SEFFICIENCY -- fixed airflow used to achieve specified
ratings -- no dehumidification airflow reduction. This is
nominally 350 CFM/ton, but will vary if a 2--stage out-
door unit is used.
SMAXIMUM -- 400 CFM/ton. No dehumidification air-
flow reduction.
Dehum Airflow:
SNORMAL (factory default) -- When equipment is run-
ning to dehumidify, the airflow is allowed to adjust to a
minimum to satisfy the dehumidification call.
SHIGH -- Minimum airflow during the dehumidify mode
is increased to reduce duct and register sweating. Also
increases minimum airflow during normal cooling opera-
tion to reduce duct sweating.
Heater Size:
S(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.
GT
erminal
This setup option selects desired operation when the R--G circuit
changes state on the furnace control board depending on setup.
SDISABLED (Default)
SFAN -- turns on fan to selected fan speed when G termi-
nal is energized. See Fig. 26.
SFAN SPEED -- select Low, Med, High for all zones
when G terminal is energized
SSHUTDOWN -- shuts off fan and equipment when initi-
ated. This function may be activated by a dry contact
from an external device such as a float switch or a relay.
User selects whether the contact is NC -- normally closed
(default) or NO -- normally open. User Interface displays
SYSTEM MALFUNCTION on screen and registers G
terminal shutdown event in Last 10 System Events. See
Fig. 27.
SGEN (generator input) -- displays GENERATOR MAL-
FUNCTION pop--up message when G is energized. This
function requires the addition of a Generator Self Test
Verifier (Part No. GSV200) which must be purchased
separately. Visit www.GeneratorVerifier.com for details
and ordering information. See Fig. 26.
CCUID01 -- B

11
Setup -- Heat Pump / AC
Cooling Lockout:
SNONE (default)
S45_F/7_C
S50_F/10_C
S55_F/13_C
Outside temperature below which cooling will not be provided.
Low Ambient Cooling:
SNO (default)
SYES
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:
S(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:
S30 minutes
S60 minutes
S90 minutes
S120 minutes (default)
SAuto--Defrost interval optimized by outdoor control (de-
fault for communicating HP)
Time interval at which defrost cycles can occur on a heat pump.
Elect Heat Lockout
SNONE (default)
S+5 to 55_F / --15 to 13_C
Outside temperature above which the electric heat will not operate
except for defrost.
High Cool Latch:
SNONE (default)
S80 to 110_F / 27 to 43_C
Outside temperature above which only the high stage (of a 2--stage
outdoor unit) will run when cooling.
High Heat Latch
SOFF (default)
S20 to 50_F/--7to10_C 2 --stage heat pump runs only
high stage heating below a selectable outdoor tempera-
ture. Selections from 20 to 50_F/--7to10_C are avail-
able in 5_F/2.8_C increments.
Setup -- Hybrid Heat
HYBRID HEAT SETUP
FURNACE
LOCKOUT: > 30 F
HEAT PUMP
LOCKOUT: < 15 F
DEFROST W/FURNACE: YES
< BACK
HP TO FURNACE
STAGE TIME: 15 MIN
OUTSIDE LOCKOUT TEMPS
A07030
Fig. 28 -- Hybrid Heat Setup
FURNACE LOCKOUT -- Temperature above which only the heat
pump will operate, except for defrost.
SDefault = NONE
SAvailable settings = NONE thru >55_F/13_C
HEAT PUMP LOCKOUT -- Temperature below which only the
furnace will operate.
SDefault = NONE
SAvailable settings = NONE thru <55_F/13_C
DEFROST W/FURNACE -- Choose whether furnace operates
during defrost cycle.
SDefault = YES
SAvailable settings = YES / NO
HP TO FURNACE STAGING TIME -- Adjust the minimum
amount of time the heat pump will run before furnace will be
allowedtorun.
SDefault = 15 MIN
SAvailable settings = 15--60 minutes. If a demand of 5_F/
2.8_C or greater exists, the timer will be overridden.
Setup -- Hydronic Heat
HYDRONIC HEAT SETUP
AIRFLOW: 800 CFM
BLOWER ON DELAY: 30 SEC
HOT WATER
LOCKOUT: > 30 F
HEAT PUMP
LOCKOUT: < 45 F
DEFROST W/WATER: YES
BLOWER OFF DELAY: 30 SEC
< BACK
A07031
Fig. 29 -- Hydronic Heat Setup
HOT WATER LOCKOUT -- Outside temperature above which the
hot water will not operate except for defrost (if needed).
SAvailable settings -- NO, 5 to 55_F / --15 to 13_Cin1_F
/.6_C increments
HEAT PUMP LOCKOUT -- Outside temperature below which
only the hot water will run, 1_F/.6_C resolution.
SAppears only with a heat pump outdoor unit.
SAvailable settings -- NO, 5 to 55_F / --15 to 13_Cin1_F
/.6_C increments
DEFROST W/WATER:
SAvailable settings: YES / NO (Default =YES)
SAppears only if heat pump is available If no, hot water
will not run during a defrost.
AIRFLOW -- Selects desired airflow during Hydronic Heating
SAvailable range from OFF, 500 CFM(minimum) to 400
CFM/ton cooling maximum in 50 CFM increments.
SDefault is the cooling airflow. (350 CFM/ton)
SOFF selection does not turn off airflow if heat pump is
defrosting.
CCUID01 -- B

12
BLOWER ON DELAY -- Time after hot water is requested that the
blower will turn on.
SAvailable settings -- 0 to 240 seconds in 30 second incre-
ments
SDefault is 30
BLOWER OFF DELAY-- Time after hot water request terminates
before the blower will turn off.
SAvailable settings -- 0 to 240 seconds in 30 second incre-
ments
SDefault is 0.
Setup -- Accessories
Filter Type:
SMEDIA (i.e. TrueSenset)
SEAC
SMEDIA+EAC (i.e. TrueSenset)
CLEAN INTERVAL: 30 to 180 days (of actual blower operation).
(Default = 90)
Interval at which the Clean Filter notification will turn on. Applies
to EAC filter selection only.
Humidifier Installed:
SNO
SYES
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:
SNO (default)
SYES
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.
CLEAN INTERVAL:
S60 to 180 days of actual operation (default=90)
Interval at which the Clean Ventilator Pre--filter notification will
turn on.
UV Lights Installed
SNO
SYES
If YES, indicates to the system whether UV lights are installed.
CHANGE INTERVAL:
S6 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 timer interval in which the normal
System Maintenance notification is turned on for the homeowner.
(See Fig. 30.)
Range =
SOFF
S6 to 24 months, (default=12 months)
SYSTEM MAINTENANCE
< BACK
REMIND OWNER OF
MAINTENANCE EVERY:
12 MONTHS
% USED: 50%
RESET >
A07033
Fig. 30 -- System Maintenance
Pressing the right side button will reset the timer. Pop--up
confirmation will be shown.
Setup -- Utility Saver
Cooling/Heat Pump Heating:
STurn off, Low Stage
This setup is available only if the equipment 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.
The choices include:
STurn Off , (equipment turns off)
SLow Stage (available if the AC/heat pump is a 2--stage
model, runs low speed only)
CHECKOUT MENUS
The Checkout menu will show the equipment installed in the
system. A sample checkout menu is shown in Fig. 31.
CHECKOUT
FURNACE
HEAT PUMP HEATING
HEAT PUMP COOLING
HUMIDIFIER
VENTILATOR
BACK SELECT
A03204
Fig. 31 -- Checkout Menu
Checkout -- Furnace or Gas PAC
Make sure the furnace is properly installed before continuing.
SLOW HEAT RUNTIME: 5 min.
SHIGH HEAT RUNTIME: 5 min.
This menu item allows the furnace to be exercised. First, a low heat
runtime and high heat runtime 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
SELECTRIC 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.
CCUID01 -- B

13
Checkout -- Heat Pump Heating
SHIGH HEAT RUNTIME: 5 min.
SLOW HEAT RUNTIME: 5 min.
SDEFROST: 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 5 min. 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
SHIGH COOL RUNTIME: 5 min.
SLOW 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 will change to show the heat
pump or AC operating status.
Default time = Fixed 5 min. 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 -- Humidifier
SOFF
SON
The humidifier can be exercised On and Off with this menu option.
Checkout -- Ventilator
Speed:
SOFF
SLOW
SHIGH
The ventilator can be exercised through all of its operating speeds
with this menu option.
Checkout -- System Access Module (SAM)
See System Access Module Installation Instructions for full details.
SERVICE MENUS
The Service Info menu will only show the equipment installed in
the system. Below is a sample using a furnace and a heat pump
(Hybrid Heat). A sample service menu is shown in Fig. 32.
SERVICE INFO
FURNACE STATUS
HEAT PUMP STATUS
LAST 10 SYSTEM FAULTS
RUN/FAULT HISTORY
TODAY’S DATE
MODEL/SERIAL NUMBER
SERVICE PHONE NUMBER
BACK SELECT
A03205
Fig. 32 -- 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.
NOTE: To view a less detailed Equipment Status screen, press and
hold the right side button for 3 seconds. This will display
equipment stage, fan status, actual and target humidify settings.
Heat Stage:
SOFF, LOW, HIGH
Displays stage of heat that the furnace is currently delivering.
Airflow CFM:
S(furnace model dependent)
Cubic Feet per Minute of air the blower is currently delivering.
Inducer RPM (90% furnaces only):
SInducer motor RPM value.
Blower RPM:
SActual RPM feedback from indoor blower motor.
Static Press:
SInches of water. Displays the calculated static pressure
that the fan coil is currently experiencing.
SIf static pressure cannot be accurately calculated, the dis-
play will read UNKNOWN. When this is seen, the sys-
tem is adjusting to high static pressure by cutting back
blower RPM.
Lockout Timer:
SSeconds
If a lockout timer is active, this will show the current time value.
See furnace manual for details on lockout timers.
Service -- Fan Coil Status
Electric Heat:
SOFF, LOW, MED, HIGH
Displays stages of electric heat that the fan coil is currently
delivering.
Airflow CFM:
S(fan coil model number dependent)
Cubic Feet per Minute of air the User Interface is currently
requesting.
Blower RPM:
SActual blower motor RPM value
Static Press:
SInches of water. Displays the calculated static pressure
that the fan coil is currently experiencing.
SIf static pressure cannot be accurately calculated, the dis-
play will read UNKNOWN. When this is seen, the sys-
tem is adjusting to high static pressure by cutting back
blower RPM.
Service -- Heat Pump / AC Status
Stage: (Heat / Cool)
SOFF, LOW, HIGH
Displays stage of heating or cooling that the Heat Pump/AC is
delivering.
Defrost:
SNO, YES
Displays status of defrost mode if heat pump.
Airflow CFM:
SAirflow User Interface is requesting from blower.
Outdoor Coil Temp:
S_For_C (default = _F)
Temperature of the outdoor unit coil (only available on 2--stage
communicating outdoor units).
Blower RPM:
SActual RPM feedback from indoor motor.
Static Press:
SInches of water. Displays the calculated static pressure
that the fan coil is currently experiencing.
CCUID01 -- B

14
SIf static pressure cannot be accurately calculated, the dis-
play will read UNKNOWN. When this is seen, the sys-
tem is adjusting to high static pressure by cutting back
blower RPM.
Service -- Last 10 System Events
LAST 10 EVENTS
LOW PRESSURE
3/2/05 2:35 PM
< BACK MORE >
HP
3 EVENTS:
225 EVENTS _
ACTIVE
FN 2/28/05 6:10 PM
41-BLOWER MOTOR FAULT
F
SWITCH OPEN
F=FAULT
A07032
Fig. 33 -- Last 10 System Events
This screen will show last 10 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 Coil
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:
SFault counters for each piece of equipment that can be
reset.
Cycle Counters:
SNumber of heat/cool/power cycles the unit has per-
formed.
Run Times:
SLifetime 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. This is only available in original factory
supplied circuit board. If a circuit board is replaced, the model and
serial number information is no longer available.
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 a service reminder pop--up message is
displayed (i.e. Change Filter, etc.)
To edit:
SUse Temp +/-- button to move cursor left and right.
SUse Time +/-- button to select numbers and letters.
SUse Scroll button to move up and down between NAME
and NUMBER.
OPERATIONAL INFORMATION
Continuous Fan Operation
Pressing FAN button will scroll through the following:
SAUTO = No fan operation except during equipment op-
eration.
SLOW = Approximately 50% of High Speed operation.
SMED = Half way between High and Low speed opera-
tion.
SHIGH = 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. Repeat to deactivate.
Heat Source Selection (Hybrid or Hydronic Heat)
If user wishes to override normal operation in Hybrid Heat or
Hydronic Heat applications, press and hold the heat button for 3
seconds to select desired heat source.
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. This can be defeated in the Advanced Setup Screens.
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.
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.
For furnace heating, the high stage timer is adjustable to force
longer minimum low stage run time. See Furnace Setup for details.
A demand of 5_F or more will override the staging timer and allow
higher stages to energize.
In Hybrid Heat, the staging timer is 15 minutes between heat pump
and gas furnace operation. This timer is adjustable in the Hybrid
Heat Setup menu to force longer minimum heat pump run time and
longer low stage furnace run time. A demand of 5_F or more will
override the staging timer and allow higher stages to energize.
CCUID01 -- B

15
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 setpoint is changed, this timer is
automatically cancelled, allowing the equipment to turn off
immediately when the demand is removed.
Heat/Cool setpoints (Desired Temperatures)
A minimum difference of 2_F/1.1_C (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.
Temperature Display
The actual temperature displayed is always rounded toward the
setpoint. This is because the system is operating and measuring the
temperature in sixteenths of a degree, but displaying in whole
numbers. The system may be turned off and on within .5_F/.3_C
of setpoint, but the display may not change. This is by design and
does not indicate a problem with the control.
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 setpoint 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 setpoint 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_per minute. In order to achieve setpoint, the control ramps up
the setpoint 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 (TrueSenset
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 run (this could be heat or cool
airflow.) The measurement is taken at a low airflow and then
calculated up to the highest airflow the system could see.
Frozen Coil 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 setpoint 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 normal
dehumidify operation. If set to EFFICIENCY or MAXIMUM, no
special dehumidify operation will take place during a normal
cooling call. Cooling will only operate to satisfy the space
temperature setpoint.
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), then the cooling
unit will be allowed to overcool the space up to 3_F/1.7_Cifthe
humidity level is above the cooling humidity target setpoint.
The amount of over--cooling allowed varies with the
dehumidification demand, the cooling demand, and the actual
space temperature. More over--cooling is allowed with greater
dehumidification demand.
When the space temperature is at or above 75_F/24_Candthe
dehumidify demand is high, over--cooling up to 3_F/1.7_Cis
allowed. As the space temperature approaches 70_F/21_C, less
over--cooling is allowed. At 70_F/21_C space temperature, no
more over--cooling 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 over--cooling is allowed when the
cooling humidity is above the target setpoint, 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, only
Dehumidify (over--cooling to dehumidify) will be performed.
Hybrid Heat Setup / Operation
Furnace Lockout —(in HYBRID HEAT SETUP menu) is the
outside temperature above which the furnace will not run except
for defrost (otherwise known as the aux heat lockout).
Heat Pump Lockout — (in HYBRID HEAT 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
settings. The User Interface will not allow the heat pump lockout
setting to be above the furnace lockout setting.
The factory default settings for both of these is NONE (no
lockouts). Even though a heat pump lockout temperature may be
set, the system will still use the furnace in defrost operation, and
may stage back down to heat pump when defrost is completed after
a2minutedelay.
Hybrid Heat Defrost — (in HYBRID HEAT SETUP) When the
outdoor unit needs a defrost cycle, the furnace will run during
defrost regardless of lockout temperature, unless told not to in the
Hybrid Heat Setup screen. After defrost, the system may stage
down to heat pump after a 2 minute delay.
CCUID01 -- B

16
TROUBLESHOOTING
Please refer to the Troubleshooting Guide available on HVAC Partners for more detail.
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 accessories and all devices from ABCD and connect User Interface directly
to indoor unit with a short piece of thermostat wire. Add other devices one at a time to determine where the communication issue
exists.
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 every 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 pressed 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.
To check current system status.
1. Press and hold the right side button for 3 seconds. This will display the current active system faults.
2. If no faults are active, the Status screen will show status of each component in the system.
CCUID01 -- B

17
SYSTEM MALFUNCTION SCREEN
OUTSIDE: 84_|FAN:AUTO
71_
HVAC SERVICE
1---800---555---1212
SYSTEM MALFUNCTION
CALL TECHNICIAON
A07036
Fig. 34 -- System Malfunction Screen
Fan Coil
The code number represents flash code on circuit board of fan coil.
Certain faults will generate a system malfunction message on the
main screen. When this occurs, a technician should proceed to the
Last 10 System Events screen in the Service Menu to determine
which fault has caused the message.
A new feature in the --B model is that the Status screen (right side
button press for 3 seconds) will reveal the active fault to the
homeowner.
Below is a list of which faults will result in a System Malfunction
event:
Code 37 -- Heater output sensed On when not energized
Code 41 -- Blower Motor Fault (ventilator, humidifier,
dehumidifier, outdoor unit will be turned off)
Code 44 -- Motor Communication Fault (ventilator, humidifier,
dehumidifier, outdoor unit will be turned off)
Code 45 -- Control failure
Furnace
The code number represents flash code on circuit board of furnace.
Code 13 -- Limit Circuit Lockout
Code 14 -- Ignition Lockout
Code 15 -- Blower Motor Lockout (ventilator, humidifier,
dehumidifier, outdoor unit will be turned off)
Code 21 -- Gas Heating Lockout
Code 22 -- Abnormal Flame Proving Signal
Code 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
The code number represents flash code on circuit board of 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
STemp sensor failed, loss of communication with smart
sensor, smart sensor fault. “NO SENSOR DATA” shown
SIndoor unit communication fault
SOutdoor unit communication fault
SPackaged product communication fault
SNIM communication fault
SSAM communication fault
SPossible 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.
CCUID01 -- B

18
Copyright 2007 Carrier Corp. S7310 W. Morris St. SIndianapolis, IN 46231 Printed in China Edition Date: 03/07
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
C a t a l o g N o : U I D 0 1 --- 3 S I
Replaces: UID01--- 2SI
CCUID01 -- B