Carrier Connect 33CONNECTSTAT43 User manual

Carrier Connect™
Wi-Fi Thermostat
33CONNECTSTAT43
Installation Guide
©2022 Carrier. All rights reserved. • Catalog No. 11-808-728-01 • 12/2/2022

Verify that you have the most current version of this document from www.hvacpartners.com, the Carrier Partner
Community website, or your local Carrier office.
Important changes are listed in Document revision history at the end of this document.
©2022 Carrier. All rights reserved.

Contents
What is the Carrier Connect™ Wi-Fi Thermostat?................................................................................................ 1
Specifications........................................................................................................................................................1
Wiring the Carrier® Connect™ Wi-Fi Thermostat ................................................................................................ 2
To wire the thermostat to equipment................................................................................................................2
To wire and mount the thermostat ....................................................................................................................4
To connect a remote input (sensor or contacts) ..............................................................................................6
To wire for BACnet communication ...................................................................................................................8
Registering and setting up a mobile device for enhanced access ...................................................................... 9
Using the Connect website or app................................................................................................................... 10
Configuring the system ...................................................................................................................................... 13
To configure advanced SYSTEM SETTINGS.................................................................................................... 14
Operating your system using the Carrier® Connect™ Wi-Fi Thermostat........................................................... 22
Occupancy........................................................................................................................................................... 22
Supply fan ........................................................................................................................................................... 22
Cooling................................................................................................................................................................. 23
Econ enable ........................................................................................................................................................ 23
Heating ................................................................................................................................................................ 24
Dehumidification ............................................................................................................................................... 24
Humidification.................................................................................................................................................... 25
Filter status......................................................................................................................................................... 25
Holidays............................................................................................................................................................... 25
BACnet integration ............................................................................................................................................ 25
Using the Carrier® Connect™ Wi-Fi Thermostat's screens ................................................................................ 26
HOME ................................................................................................................................................................... 26
SETPOINT ............................................................................................................................................................ 27
MODE................................................................................................................................................................... 28
SETTINGS............................................................................................................................................................. 28
HUMIDITY ............................................................................................................................................................ 29
FAN....................................................................................................................................................................... 30
PROGRAM........................................................................................................................................................... 31
HOLIDAY.............................................................................................................................................................. 31
BANNER............................................................................................................................................................... 31
DATE and TIME................................................................................................................................................... 32
SOFTWARE screen and BACKLIGHT screen................................................................................................... 32
ADVANCED.......................................................................................................................................................... 32
FILTER.................................................................................................................................................................. 33
LOCKOUT............................................................................................................................................................. 34
CLEAN.................................................................................................................................................................. 34
LOG....................................................................................................................................................................... 34
STATUS ................................................................................................................................................................ 35
SERVICE............................................................................................................................................................... 35
Installation test .................................................................................................................................................. 36
Troubleshooting.................................................................................................................................................. 37
Outputs based on demand and configuration .............................................................................................. 37
Fault definitions ................................................................................................................................................. 38
Recovering from a power outage.................................................................................................................... 40
Resetting wi-fi access........................................................................................................................................ 40
Compliance......................................................................................................................................................... 42
FCC Compliance............................................................................................................................ 42
BACnet Compliance ...................................................................................................................... 42

Contents
Appendix: BACnet Points List ............................................................................................................................ 43
Document revision history.................................................................................................................................. 49

33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
1
The Carrier® Connect™ Wi-Fi Thermostat (Part #33CONNECTSTAT43) is a thermistor-based wireless thermostat
that can sense a 10K Type II OAT or a remote space or return air sensor and can control up to 4 heating and 3
cooling stages.
The Carrier® Connect™ Wi-Fi Thermostat package includes:
•Thermostat
•Mounting Hardware - two screws with drywall anchors and one security screw
•Quick Start Guide - Catalog No. 11-808-729-01
Some of the features:
•Supporting standard air conditioning and heat pump rooftop and split units
•7-day scheduling with up to 4 periods per day
•Holiday scheduling
•Full-color touchscreen that’s easy to navigate
•Remote programming and monitoring using secure Apple® or Android® mobile app or Web portal
•Text and email service alerts
•Automatic software updates via Wi-Fi
Specifications
Power requirements
24 Vac +/- 10% @ 3VA
Network Requirements
Wi-Fi connectivity supports Wi-Fi: 802.11 a/b/g/n standards on 2.4 GHz networks
Environmental
operating range
32° to 104°F (0° to 40°C), 10 to 95% relative humidity, non condensing
Mounting
Standard 4 x 2 in. electrical box using the 6-32 x 1/2 in. mounting screws provided
Overall dimensions
Width:
Height:
Depth:
5.13 in. (13 cm)
3.23 in. (8.2 cm)
0.94 in. (2.4 cm)
BACnet Support
Conforms to the BACnet Application Specific Controller (B-ASC) Device Profile as defined
in ANSI/ ASHRAE Standard 135-2012 (BACnet) Annex L, Protocol Revision 14
Listed by
FCC Part 15, Subpart J compliant
What is the Carrier Connect™ Wi-Fi Thermostat?

Wiring the Carrier® Connect™ Wi-Fi Thermostat
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
2
To wire the thermostat to equipment
Packaged Rooftop Units
Hydronic Fan Coil
Wiring the Carrier® Connect™ Wi-Fi Thermostat

Wiring the Carrier® Connect™ Wi-Fi Thermostat
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
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Dual fuel systems
(Furnace and heat pumps)
Furnace/AC System
Water Source Heat Pump
Air Handler or DX Fan Coil/AC Split System

Wiring the Carrier® Connect™ Wi-Fi Thermostat
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Installation Guide All rights reserved.
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Air Handler or DX Coil/Heat Pump split system
To wire and mount the thermostat
1 Turn off 24 Vac power at the equipment circuit breaker or the system switch.
2 Place the thermostat base against your wall to mark drill holes.
3 Drill the anchor holes or use existing holes to mount the wallplate.
○Drywall —Drill 3/16 in. hole for the anchor.
○Plaster —Drill 7/32 in. hole for the anchor.
4 Pull wires through opening in base.
5 Attach the base to the wall with the provided screws.

Wiring the Carrier® Connect™ Wi-Fi Thermostat
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Installation Guide All rights reserved.
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1 Straighten the wires and match your wire configuration to the terminals on the base.
2 Connect each wire individually by pushing down on the quick connect tab, inserting it into the connector
opening, and then releasing the tab.

Wiring the Carrier® Connect™ Wi-Fi Thermostat
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Installation Guide All rights reserved.
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3 Attach the thermostat face by aligning it with the hinge guide on top of the back.
4 Turn on the 24 Vac power. The thermostat displays the HOME screen. See HOME (page 26) for details.
5 Configure your system as described in this document.
To connect a remote input (sensor or contacts)
NOTE Use the specified type of wire and cable for maximum signal integrity.
Power
N/A
Description
Stranded, twisted pair
Conductor
If < 100 ft (30.5 meters) 22 AWG, unshielded
If > 100 ft (30.5 meters) 22 AWG, shielded
Maximum length
500 feet (152 meters)
Insulation
Plenum rated
Thermistor
10K Type II (CP/MCI)

Wiring the Carrier® Connect™ Wi-Fi Thermostat
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Installation Guide All rights reserved.
7
Use Remote Sensor input terminals S1 and S2 for the following inputs:
•OAT
•T55
•SAT
•Occupancy contacts
•Econ Fault
Wiring for space temperature sensor averaging
4 sensors

Wiring the Carrier® Connect™ Wi-Fi Thermostat
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
8
9 sensors
To wire for BACnet communication
NOTE Use the specified type of wire and cable for maximum signal integrity.
Cable
22 or 24 AWG, low-capacitance, twisted, stranded, shielded copper wire
Maximum length
2000 feet (610 meters) per segment
Baud rate
9600 bps, 19.2 kbps, 38.4 kpbs, or 76.8 kbps, 115.2 kbps
Connect communication wiring to terminals A+ and B-. Do not terminate shield at the thermostat.
CAUTION Maintain the same polarity.
NOTE For more networking details, see the Open Controller Network Wiring Installation Guide.

Registering and setting up a mobile device for enhanced access
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
9
Downloading the Connect™ App provides enhanced access to your device. The Connect™ App is available for
Apple IOS® at App Store® or at Google Play® for Android devices. Search for Carrier Connect™ Thermostat.
NOTE Device compatibility: Apple IOS® 7.0 or later or Android 4.2 or later
1 After downloading Connect™ App, select USER SETUP and Register New Account.
NOTE You can also register new accounts using the website connectstat.carrier.com.
2 Enter an email address that you can access on your mobile device and receive the confirmation email to
complete the registration process.
3 Select SETUP NEW THERMOSTAT and follow the Connect™ App instructions.
4 After registering the thermostat, enter servicing contractor's name and phone number on the SERVICE INFO
screen.
5 On the THERMOSTATS screen, select the thermostat from list and the mobile app's HOME screen appears.
Registering and setting up a mobile device for enhanced access

Registering and setting up a mobile device for enhanced access
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Installation Guide All rights reserved.
10
Using the Connect website or app
After you register for an account, you can access the thermostat by using the app directly or through the Web at
connectstat.carrier.com.
You can:
•Monitor the thermostat operation
•Set up occupied and unoccupied (holiday) schedules
•Adjust setpoints
•Share thermostat access with other users
•Create groups of thermostats that you have registered
•Create groups of thermostats that other owners have shared with you
•Get online product information
•Find local dealer support
To navigate
•On a touchscreen device, use any of the following:
○swipe the screen
○tap the arrow on the side
○tap a dot on the bottom of the screen on either side of the HOME button
•On a non-touchscreen device, click on the gray arrow on either the side of the screen.
•You can press or click to access the following drop-down list:
○My Systems
○My Account
○Shared Systems
○Product Information
○Find and Expert
○Logout
1 After logging in, a list appears of thermostats that you have registered and that have been shared with you.
2 Click .

Registering and setting up a mobile device for enhanced access
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Installation Guide All rights reserved.
11
3 Swipe or click to navigate to the SETTINGS screen.
NOTES
○Navigate by clicking or pressing the buttons such as SETPOINTS, FAN, PROGRAM, etc...
○Grayed out function buttons indicate that feature is not being used on the thermostat.
Screens
Use to...
SETPOINTS
Adjust the occupied and unoccupied setpoints by selecting each temperature.
FAN
View and modify fan settings.
•The default setting for fan operation is AUTO for both Occupied and Unoccupied periods.
When operating in AUTO MODE, the fan only runs when there is an active heating or
cooling demand.
•When you select ON, the fan runs continuously, except during the Blower On Delay when
a heat cycle is starting. There is a 30-second minimum on/off timer when changing the
FAN MODE.
NOTE The following selections are not available if the thermostat has been configured for non-programmable
operation.
HUMIDITY
Adjust the thermostat's humidify and dehumidify setpoints.
PROGRAM
You can:
•Set Occupied and Unoccupied start times, depending on the configured number of
periods and the user’s security level.
•Select the time at the bottom of the screen to adjust the start or stop time of each
period in 15 minute increments.
•Select Copy to apply that schedule to other days of the week.
•Adjust the setpoints for each period.

Registering and setting up a mobile device for enhanced access
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Installation Guide All rights reserved.
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Screens
Use to...
HOLIDAY
Set HOLIDAY (same as unoccupied) periods with the following options:
•Length of time from 1 to 365 days
•Same day of each week of the month
•Specific day of specific week(s) of the month
NOTE Requires advanced security level to edit these settings
•Select +ADD HOLIDAY to add start month, day, and number of days.
•Select ADVANCED to configure same day of each week(s) of that month.
•To delete a holiday on the:
○Mobile app - swipe the selected holiday to the left and select Delete
○Web app - select xon right side of the holiday
SETTINGS
Enter the name and location of the thermostat for the user’s reference. The user can enter
an email address for alerts and a mobile phone number to receive text alert messages.
NOTE Requires advanced security level to edit these settings.
ALERTS
Displays a list of alerts that have been flagged in the thermostat.
SERVICE
Displays the name and phone number of the service company or individual who is
responsible for servicing the system.
NOTE Requires advanced security level to edit these settings.

Configuring the system
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Installation Guide All rights reserved.
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1 On the thermostat, not a mobile device, swipe the HOME screen twice to the left to navigate to the MODE
screen and ensure the MODE is OFF.
NOTE The yellow line above a button indicates the current MODE.
2 Swipe to go to the FAN screen and then press and hold the Fan Button for 5 seconds to get to the
SYSTEM SETTINGS screen.
NOTE You can ONLY access the SYSTEM SETTINGS screens from the thermostat itself, not the app or web.
3 Enter the 3-digit security PIN code, if applicable, to open the SYSTEM SETTINGS screen.
4 Use the advanced options on the SYSTEM SETTINGS screens to configure and setup your system, change,
and view options.
NOTES
○The yellow Row Indicator at the right side of the screen indicates the current location in the list of
advanced settings options. Swipe up or down to navigate through options and then tap to select one.
○Swipe on any of the SYSTEM SETTINGS sub-screens to return to the SYSTEM SETTINGS main screen.
Configuring the system

Configuring the system
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Installation Guide All rights reserved.
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To configure advanced SYSTEM SETTINGS
You can only adjust the SYSTEM SETTINGS screens and parameters on the thermostat itself. You cannot access them on a
mobile device.
You can select FACTORY DEFAULTS to restore all default settings to the original values.
Parameter Name/Description
Default and Range
HEAT EQUIP TYPE —The equipment heating type. If you select GAS HEAT and the
COMPRESSOR TYPE for HP, then the defined DUAL FUEL thermostat operation is used
for heating.
D:
R:
GAS HEAT
GAS HEAT/ELECTRIC
HEATING EQUIP STAGES —The number of gas heating stages or E- heating stages in the
equipment
NOTE If set to 2, the W2 relay output is not available for optional functions, such as
○Humidifier
○Humid-MiZer™ dehumidification
○Occupancy Output
D:
R:
1
1 to 2
COMPRESSOR TYPE —The type of the unit's compressors(s)
NOTE Select HP for the HEAT EQUIP TYPE to define the auxiliary heat type.
D:
R:
A/C
NONE, A/C, HP
COMPRESSOR STAGES —The numbers of compressors
NOTES
•If COMPRESSOR TYPE is set to HP, the number of stages also defines the number of
HP heating stages.
•If set to 3, the Y3 relay output is used for the third-stage compressor and the
thermostat configuration is limited for the following:
○Humidifier
○Humid-MiZer™ dehumidification
○Occupancy output
D:
R:
2
NONE, 1 to 3
AUTO ALLOWED —Enables and disables the thermostat to automatically switch from
heating to cooling to maintain the temperature between the setpoints.
D:
R:
YES
YES/NO
PROG OR NON-PROG —Allows the thermostat to operate as a non-programmable
(simplified) thermostat or a programmable thermostat with two or four time periods per
day.
D:
R:
PROG
PROG / NON-PROG
MAX HOLD TIME —The thermostat setpoints cannot be overridden by the user. When the
SCHEDULE PAUSED button is pressed on the SETPOINTS screen (SCHEDULE IS
RUNNING), and the user changes the setpoint, the MAXIMUM TEMPORARY HOLD TIMER
is started with this value and displayed in the clock location.
D:
R:
2 hours
OFF
1 - 6 hours
FAHRENHEIT OR CELSIUS —The temperature scale
D:
R:
°F
°F/°C

Configuring the system
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Installation Guide All rights reserved.
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Parameter Name/Description
Default and Range
SMART RECOVERY —Transitions the conditioned space from one programmable
temperature period to the next with 1°F increments of the heating setpoint or with 1°F
decrements of the cooling setpoint, so that by the time the next period starts, the
setpoints are at the desired temperature. The purpose of the gradual transition is to use
less energy by preventing staging up (because of a higher demand) to higher stages. The
transitions occur in a linear fashion over the smart recovery time period.
•If you start a temporary hold in the middle of a smart recovery, the setpoints of the
temporary hold are used.
•If a temporary hold is already active during the time that smart recovery would have
been started, a smart recovery does not start.
•If the temporary hold ends in the middle of what would have been a smart recovery,
the smart recovery starts where it would have been in the linear progression at the
same time as when the temporary hold was not active.
D:
R:
30
NO, 30, 60, 90 MIN
FAN ON WITH W —Supplies a fan output demand as soon as a W1 or W2 output
demand is active.
D:
R:
YES
YES/NO
REVERSING VALVE —Defines whether the ON state of the reversing valve is used for
heating or cooling when COMPRESSOR TYPE is set to HP.
•When the ON state of the reversing valve is used for cooling, the signal is typically
referred to as a O.
•When the ON state of the reversing valve is used for heating, the signal is typically
referred to as a Bdemand.
•If COMPRESSOR TYPE is set to HP, the thermostat configuration may be limited for
the following:
•Humid-MiZer™ dehumidification
•Humidifier operation
•Occupancy output
D:
R:
COOL
COOL/HEAT
SPACE TEMP OFFSET —Calibrates the internal space temperature sensor.
D:
R:
0°F
-5 to 5°F
SPACE HUM OFFSET —Calibrates the internal relative humidity sensor.
D:
R:
0%
-9 to 9%
AUTO CHANGEOVER —The minimum time between switching from heat-to-cool or from
cool-to-heat demands, when in AUTO MODE. The timer begins when the MINIMUM OFF
TIMER expires.
D:
R:
30 MIN
5, 10, 15, 20, 25, 30 MIN

Configuring the system
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Installation Guide All rights reserved.
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Parameter Name/Description
Default and Range
REMOTE SENSOR —Determines whether the remote sensor hardware input is:
•NONE —Not used
•NONE or SPACE —The outdoor temperature is acquired by Wi-Fi through the server,
based on the location of the mobile device used to connect the thermostat to a
router, or based on the ISP location, if a computer connects the thermostat to a
router.
•OUTDOOR —Senses the outdoor temperature
NOTE The outdoor temperature is not available if the thermostat is not connected to
Wi-Fi or if you do not select OUTDOOR.
•AVERAGE —Space temperature results from averaging the internal and the external
sensor
•OCCUPANCY —An external source is accessed to determine if the setpoints are
Occupied or Unoccupied. When Normally Open contacts close, the Occupied
setpoints are used.
NOTE When selected, NON-PROG is automatically set and is not displayed in the
Installer Settings until this parameter is changed.
•FAULT INPUT —An external source is used to detect a fault, as determined by the
attached Economizer.
•SAT —A sensor to provide a means of monitoring supply air temperature
NOTE SAT is a monitor-only point and has no effect on unit operation.
•FILTER –Used to detect a dirty filter. Contact closure causes FILTER REMINDER
message on home screen banner
NOTE This selection disables the timed air filter reminder functionality.
D:
R:
NONE
NONE
SPACE
OUTDOOR
AVERAGE
OCCUPANCY
FAULT INPUT
SAT
FILTER
SAT TEMP OFFSET —Allows temperature offsets from -5° to 5°.
NOTE Only available when Remote Sensor Input > SAT is enabled.
D:
R:
0°F
-5 to 5°F
(1° increments)
MAX SETPOINT ERROR —Allows a temperature deviation from setpoint of between 2 and
30°, to determine fault conditions (ID TEMP RANGE HIGH or LOW).
NOTE This value is added to the cooling setpoint or subtracted from the heating
setpoint.
D:
R:
10°F
2 to 30°F
(1° increments)
ID TEMP FLT INHIBIT —Allows a time delay applied to the ID TEMP fault. The range is
adjustable from 10 to 240 minutes (60 default).
NOTE Allow for recovery time when transitioning from unoccupied to occupied periods.
D:
R:
60 mins
10 to 240 mins
(10 min increments)
COOL LOCKOUT —Delays the cooling equipment demands if the outdoor air temperature
is below the selected value. There is a SYSTEM EVENT warning if the mode and space
temperature dictate that there should be a cooling demand and the outdoor temperature
is preventing this demand.
D:
R:
55°F
OFF
0 to 80°F
(5°F increments)