Carrier Connect 33TCSP-4 Installation Manual

Wi-fi thermostat

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Carrier® Connect™ Wi-Fi

Thermostat 33TCSP-4

Installation Guide

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Page 2 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. ©2024 Carrier. All rights reserved.
Page 3: Table Of Contents
Using the Connect website or app ........................9 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 ................................
Page 4 Contents Appendix: BACnet Points List ..........................41 Document revision history ............................46...
Page 5: What Is The Carrier Connect™ 33Tcsp-4 Wi-Fi Thermostat
What is the Carrier Connect™ 33TCSP-4 Wi-Fi Thermostat? The Carrier® Connect™ Wi-Fi Thermostat (Part #33TCSP-4) 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.
Page 6: Wiring The Carrier® Connect™ Wi-Fi Thermostat
Wiring the Carrier® Connect™ Wi-Fi Thermostat Wiring the Carrier® Connect™ Wi-Fi Thermostat To wire the thermostat to equipment Packaged Rooftop Units Hydronic Fan Coil Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 7 Wiring the Carrier® Connect™ Wi-Fi Thermostat Dual fuel systems Furnace/AC System (Furnace and heat pumps) Water Source Heat Pump Air Handler or DX Fan Coil/AC Split System Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 8: To Wire And Mount The Thermostat
Wiring the Carrier® Connect™ Wi-Fi Thermostat Air Handler or DX Coil/Heat Pump split system To wire and mount the thermostat Turn off 24 Vac power at the equipment circuit breaker or the system switch. Place the thermostat base against your wall to mark drill holes.
Page 9 Wiring the Carrier® Connect™ Wi-Fi Thermostat Straighten the wires and match your wire configuration to the terminals on the base. Connect each wire individually by pushing down on the quick connect tab, inserting it into the connector opening, and then releasing the tab.
Page 10: To Connect A Remote Input (Sensor Or Contacts)
Wiring the Carrier® Connect™ Wi-Fi Thermostat Attach the thermostat face by aligning it with the hinge guide on top of the back. Turn on the 24 Vac power. The thermostat displays the HOME screen. See HOME (page 26) for details.
Page 11 Wiring the Carrier® Connect™ Wi-Fi Thermostat Use Remote Sensor input terminals S1 and S2 for the following inputs: • • • • Occupancy contacts • Econ Fault Wiring for space temperature sensor averaging 4 sensors Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier.
Page 12: To Wire For Bacnet Communication
Wiring the Carrier® Connect™ Wi-Fi Thermostat 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...
Page 13: Registering And Setting Up A Mobile Device For Enhanced Access
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 After downloading Connect™...
Page 14 After logging in, a list appears of thermostats that you have registered and that have been shared with you. Click Swipe or click to navigate to the SETTINGS screen. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 15 NOTE Requires advanced security level to edit these settings. ALERTS Displays a list of alerts that have been flagged in the thermostat. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 16 NOTE Requires advanced security level to edit these settings. Displays the graph for up to 30 days of CO2 history. Presents the high and average for today as well as the last 30 days. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide...
Page 17: Configuring The System
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. ○ Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide...
Page 18: To Configure Advanced System Settings
RUNNING), and the user changes the setpoint, the MAXIMUM TEMPORARY HOLD TIMER 1 - 6 hours is started with this value and displayed in the clock location. FAHRENHEIT OR CELSIUS — The temperature scale °F °F/°C Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 19 AUTO CHANGEOVER — The minimum time between switching from heat-to-cool or from 30 MIN cool-to-heat demands, when in AUTO MODE. The timer begins when the MINIMUM OFF 5, 10, 15, 20, 25, 30 MIN TIMER expires. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 20 There is a SYSTEM EVENT warning if the mode and space temperature dictate that there should be a cooling demand and the outdoor temperature 0 to 80°F is preventing this demand. (5°F increments) Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 21 DEHUMIDIFIER — Sets the output relay to enable a factory-installed Humidi-MiZer™ for dehumidification or to use the first stage of cooling. • If HUMDIMIZER, the output relay energizes the Humidi-MiZer™ on the Carrier unit. OVRCL(2) • If YES, the Y1 relay is energized. A new space temp setpoint is calculated to force HUMDIMIZER cooling operation.
Page 22 EXAMPLE A chosen DIFFERENTIAL value of 0.5°F requires 0.5°F difference between setpoint and space temperature before first stage is turned on. Then, 1°F of difference between setpoint and space temperature is necessary before the second stage is turned Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide...
Page 23 The baud rate must be the same for all controllers on the network. 9600 19200 38400 76800 115000 MSTP MAC ADDRESS — Unique identifier for this thermostat on the MSTP network 1 TO 127 Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 24 5 hrs / 0 min -13 to 13 hrs / 0 min DEVICE ID — This is a unique identifier for this thermostat. The default is the Carrier 16xxxx BACnet identifier (16) and the last 4 digits of the thermostat serial number.
Page 25 RESTORE DEFAULTS — Press and hold the 5 button for 5 seconds to initiate and restore all system setting defaults. Press the CANCEL button to go back to SYSTEM SETTINGS screen. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide...
Page 26: Operating Your System Using The Carrier® Connect™ Wi-Fi Thermostat
• Standard heat/cool unit types with up to 3 stages of mechanical cooling, up to 2 stages of gas or electric heating, and up to 4 stages for non-Carrier heat pumps • Heat pump units utilizing a reversing valve output for heating and cooling control •...
Page 27: Cooling
The thermostat's application and configuration determine the specific cooling sequence. It can control up to 2 stages of cooling, with an additional output for a reversing valve, for non-Carrier heat pump applications, or up to 3 stages of cooling for non-heat pump applications.
Page 28: Dehumidification
NOTE Once a heating stage is energized, it will remain on for a minimum of 5 minutes, regardless of demand. Dehumidification There is occupied and unoccupied dehumidification on units that are equipped with the Carrier Humidi-MiZer™ from the factory, or by energizing the first stage of cooling and over-cooling by 2°F.
Page 29: Filter Status
Operating your system using the Carrier® Connect™ Wi-Fi Thermostat • HUMIDIFIER must be set to YES • Must be in heating mode • Setpoint range is 15 to 50% • Humidity must be 3% less than the humidify setpoint Humidification ends when the humidity rises 3% above the humidify setpoint or the heating demand is satisfied.
Page 30: Using The Carrier® Connect™ Wi-Fi Thermostat's Screens
Using the Carrier® Connect™ Wi-Fi Thermostat's screens Using the Carrier® Connect™ Wi-Fi Thermostat's screens HOME The HOME screen is typically what the end user sees. Screen functions • Banner Press the center of the scrolling Banner to switch to the screen indicated by the displayed text. You can ○...
Page 31: Setpoint
Using the Carrier® Connect™ Wi-Fi Thermostat's screens • Equipment Status — The icon displays the current Mode selected. If the selected Mode icon is flashing, the equipment associated with the current Mode is operating. If you tap the Fan mode/operation icons, the screen switches to the FAN screen.
Page 32: Mode
Using the Carrier® Connect™ Wi-Fi Thermostat's screens MODE Use this screen to view and change the current MODE, including: • • HEAT • COOL • AUTO • E- HEAT NOTE The horizontal yellow bar always appears above the current mode.
Page 33 Using the Carrier® Connect™ Wi-Fi Thermostat's screens If cooling equipment is not available, COOL TO DEHUMIDIFY is not adjustable on the thermostat and the blue Dehum Setpoint wheel is not adjustable. HUMIDIFY — not adjustable on the thermostat (the orange Hum Setpoint wheel is not adjustable) unless configured to use one of the following outputs: •...
Page 34: Fan
Using the Carrier® Connect™ Wi-Fi Thermostat's screens Cool (1) Cool (2) Dehumidify (HUMIDIMIZER) Cool (1) and Dehumidify Cool (2) and Dehumidify Heat (1) Heat (2) Heat (1) and Humidify Heat (2) and Humidify Use this screen to adjust fan operation. The default setting for fan operation is AUTO for both OCCUPIED and UNOCCUPIED periods.
Page 35: Holiday
Using the Carrier® Connect™ Wi-Fi Thermostat's screens HOLIDAY This screen displays the current year's holiday schedule. On a holiday, the setpoints for the first UNOCCUPIED time range are used for the entire day. Scroll the vertical yellow Row Indicator to see more holidays. Click on the holiday to make edits.
Page 36: Software Screen And Backlight Screen
Using the Carrier® Connect™ Wi-Fi Thermostat's screens SOFTWARE screen and BACKLIGHT screen SOFTWARE — Displays the current software's status. BACKLIGHT — Use to change the backlight intensity in Active and Dormant modes. • The blue Active Backlight wheel adjusts the backlight intensity from 10 to 100%, (75% is the default and recommended) when the thermostat is in an active state (being accessed or viewed by the end user).
Page 37: Filter
Using the Carrier® Connect™ Wi-Fi Thermostat's screens FILTER Available on the thermostat only. Use to reset the FILTER ALERT and see the FILTER RESET REMINDER timer information. Press the RESET button to reset the timer to its configured value in the advanced SYSTEM SETTINGS. See To configure advanced SYSTEM SETTINGS (page 14).
Page 38: Status
Using the Carrier® Connect™ Wi-Fi Thermostat's screens The list displays the 5 most recent logged events, with the most recent at the top. The last line in the list includes the RESET LOG command to clear the list. Pressing an event item displays a screen with more information. Press the BACK button to return to the LOG screen.
Page 39: Installation Test
Installation test Installation test Complete the following to field test the Carrier® Connect™ Wi-Fi Thermostat's outputs. Press the CHANGE button to cycle the MODE screen through the following settings: HEATING (default) — not available in a cooling-only configuration ○ EM HEAT — not available unless a heat pump is configured ○...
Page 40: Troubleshooting
Heat 1 (A/C) Heat 2 (A/C) Heat 1 (Heat Pump) Heat 2 (Heat Pump) Heat 3 (HP w/Emerg Ht) Heat 4 (HP w/Emerg Ht) Heat 1 and Dehumidify Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 41: Fault Definitions
ID TEMP RANGE HIGH Indoor Temp above cooling setpoint plus MAX SETPOINT ERROR ID TEMP RANGE LOW Indoor Temp below heat setpoint minus MAX SETPOINT ERROR Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 42: Recovering From A Power Outage
If the power outage is longer than 2 hours, the date and time will automatically be updated once network connection is re-established. Resetting wi-fi access To assign a new Wi-Fi access point or transfer the Carrier® Connect™ Wi-Fi Thermostat to a new account, follow these steps. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier.
Page 43 Use the mobile app on your phone or tablet to connect the thermostat to the desired Wi-Fi Access point. See the section of this guide titled “Registering and setting up a mobile device for enhanced access (page 9)”. Follow the instructions within the app. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide...
Page 44: Compliance
Consult the dealer or an experienced radio/TV technician for help. BACnet Compliance Compliance of listed products to requirements of ASHRAE Standard 135 is the responsibility of BACnet ® International. BTL is a registered trademark of BACnet International. Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 45 Differential Line Frequency GATED_WRITE HERTZ LINE_FREQ AV:516 Indoor Temperature Offset GATED_WRITE DELTA_DEGREES_FAHRENHEIT ID_TEMP_OFF AV:517 Indoor Humidity Offset GATED_WRITE PERCENT_RELATIVE_HUMIDITY ID_HUM_OFF AV:518 SAT Temp Offset GATED_WRITE DELTA_DEGREES_FAHRENHEIT SAT_OFFSET AV:519 Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 46 NET_SP_TEMP_EN BV:407 1=ENABLED Network Space Hum Enable READ_WRITE 0=DISABLED NET_SP_HUM_EN BV:408 1=ENABLED Occupancy Input Polarity GATED_WRITE 0=OCCUPIED OCC_IN_POL BV:500 1=UNOCCUPIED Auto Mode Allowed GATED_WRITE 0=NO ALLOW_AUTO BV:501 1=YES Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 47 WIFI_CONF_FAIL BV:914 1=ACTIVE ECONOMIZER FAULT READ_ONLY 0=INACTIVE ECON_FAULT BV:915 1=ACTIVE LOCKOUT-5 BAD PIN READ_ONLY 0=INACTIVE LOCKOUT_FAIL BV:916 ENTRIES 1=ACTIVE Current Mode Status READ_ONLY 1=OFF CURRENT_MODE MSV:300 2=HEAT 3=COOL Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 48 3=O/B 4=W2 Humidification Output GATED_WRITE 1=OFF HUM_OUTPUT MSV:505 Terminal 2=Y3 3=O/B 4=W2 Dehumidification Output GATED_WRITE 1=OFF DEHUM_OUTPUT MSV:506 Terminal 2=Y3 3=O/B 4=W2 Smart Recovery GATED_WRITE 1=NO SMART_RECVRY MSV:507 Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 49 Network GP Y3 Mode GATED_WRITE 1=DISABLED NET_GP_Y3_MODE MSV:509 2=ENERGIZED_ACTIVE 3=ENERGIZED_INACTIVE Network GP W2 Mode GATED_WRITE 1=DISABLED NET_GP_W2_MODE MSV:510 2=ENERGIZED_ACTIVE 3=ENERGIZED_INACTIVE Network GP OB Mode GATED_WRITE 1=DISABLED NET_GP_OB_MODE MSV:511 2=ENERGIZED_ACTIVE 3=ENERGIZED_INACTIVE Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.
Page 50: Document Revision History
Important changes to this document are listed below. Minor changes such as typographical or formatting errors are not listed. Date Topic Change description Code* No updates yet. * For internal use only Carrier® Connect™ Wi-Fi Thermostat 33TCSP-4 ©2024 Carrier. Installation Guide All rights reserved.

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