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Carrier 33TWSPL-4 Installation Manual
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Carrier 33TWSPL-4 Installation Manual

Carrier 33TWSPL-4 Installation Manual

Wi-fi thermostat
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Wi-Fi Thermostat 33TWSPL-4
Installation Guide
Catalog No. 11-808-1121-01
Rev. 9/27/2024

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Summary of Contents for Carrier 33TWSPL-4

  • Page 1 Wi-Fi Thermostat 33TWSPL-4 Installation Guide Catalog No. 11-808-1121-01 Rev. 9/27/2024...
  • Page 2 The content of this guide is furnished for informational use only and is subject to change without notice. Carrier assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide.
  • Page 3 Contents What is the 33TWSPL-4 Wi-Fi thermostat? ....................1 Specifications ..........................1 Programmable and non-programmable installations ............... 2 Inputs ............................4 Outputs ............................5 Wiring the Wi-Fi Thermostat ........................6 To wire duel fuel systems and furnace / AC systems ................. 6 To wire an air handler with heat pump or with AC ................
  • Page 4 What is the 33TWSPL-4 Wi-Fi thermostat? The 33TWSPL-4 Wi-Fi thermostat has: • Space and remote temperature sensing • Space and remote humidity sensing • BACnet MS/TP communications • Wi-Fi connectivity The Wi-Fi Thermostat package includes: • Thermostat • Mounting Hardware - two screws with drywall anchors and one security screw Some of the features: •...
  • Page 5 Cool only (up to 3 stages of cooling) • Cooling Y1 - first stage cooling ○ Y2 - second stage cooling ○ Y3 - third stage cooling ○ Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 6 HP with gas heat (up to 2 stages of cooling and 4 stages of heating with 2 stages auxiliary) • This system is known as a dual fuel system. • When gas heat turns on, the HP heat turns off unless defrost is active. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 7 When used for the space temperature sensor, up to 9 remote space sensors can be averaged (1, or multiples of 4, or 9). The T input allows for remote occupancy override with T55 style sensor. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 8 AC cooling demand Cooling O or Y3 Humidifier Output humidification demand or W2 NOTE You can connect to any of these 3 outputs that are unused and select it in the system settings menu. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 9 NOTE You can connect to any of these 3 terminals that are unused and select it in the system settings menu. Wiring the Wi-Fi Thermostat To wire duel fuel systems and furnace / AC systems Dual fuel systems Furnace / AC systems Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 10 Dual fuel systems Furnace / AC systems Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 11 To wire an air handler with heat pump or with AC Air handler / heat pump systems Air handler / AC systems Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 12 Air handler / heat pump systems Air handler / AC systems Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 13 Downloading the WIFIstat Mobile App provides enhanced access to your device. The WIFIStat Mobile App is available for Apple IOS® at App Store® or at Google Play® for Android devices. Search for WIFIStat Thermostat. NOTE Device compatibility: Apple IOS® 7.0 or later or Android 4.2 or later Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 14 After you register for an account, you can access the thermostat by using the app directly or through the Web at mywifistat.com. You can: • Monitor the thermostat operation • Set up occupied and unoccupied (holiday) schedules • Adjust setpoints • Share thermostat access with other users Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 15 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. ○ Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 16 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. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 17 Change the mode (page 17) • Force an occupied or unoccupied override (page 15) • Change the setpoints (page 15) • Set the filter reminder (page 32) • Enter the menu for more advanced functionality (page 17) Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 18 If the mode is: • OFF—the setpoints, occupancy button, and the up and down arrows do not display • HEAT or EHEAT—only the heat setpoint displays • COOL—only the cool setpoint displays • AUTO—both setpoints display Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 19 To change the fan setting, press SELECT and then use the up and down arrows to toggle the fan setting between AUTO and ON and then press SAVE. • ON specifies continuous fan that is always running. • AUTO specifies that the fan only runs while actively heating or cooling. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 20 The menu allows the user to access more advanced features of the thermostat. When you press the MENU button, the first menu option is CURRENT FAN. Press SELECT to activate the up and down arrows. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 21 ISP location if a PC is used. The time and date are updated/synced automatically at the top of each hour, unless SYNC TIME TO SERVER is set to NO. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 22 MIN COOL SETPOINT. • If the installer has configured the thermostat for non-programmable operation and remote occupancy is disabled, this setting is not available. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 23 BACK returns to the menu ○ Use up and down arrows to change start time ○ Use OCC/UNOCC to change occupancy ○ The bottom middle button is labeled the opposite of the current occupancy selection ○ Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 24 During this time, a 10-second countdown value shows and then normal touchscreen function resumes. Two screens display the thermostat software versions. They are for informational purposes only. • APP VERSION displays the application. • BOOT VERSION displays the bootloader. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 25 1. When the days of the week are displayed, an occurrence value is shown in the heat setpoint. This allows the user to enter a special holiday. NOTE If the thermostat has been configured for non-programmable operation, the HOLIDAY screen is not available in the Menu settings. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 26 When set to NO, the state of the fan output (the G relay) is not displayed on the dormant screen banner. • When set to YES, the dormant screen banner displays either FAN OFF or FAN ON, based on the state of the fan output. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 27 Settings) is set to SAT Using installer settings To reach the Installer Settings screens, set the mode to OFF and press and hold the MENU button for 5 seconds. Scrolling though the installer settings: Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 28 The maximum number of stages is 3 if AC is selected. If COOL STAGES is set to 3, the Y3 relay output is used for the third-stage compressor cooling and is not available for optional functions such as HUMIDIFIER, DEHUMIDIFICATION, and OCCUPANCY OUTPUT. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 29 Default setpoint times and temperature settings Setting Start time Heat setpoint Cool setpoint 1st Period 7 AM 70°F 75°F 2nd Period 5 PM. 62°F 85°F 3rd Period 10 PM 70°F 75°F 4th Period 11 PM 62°F 85°F Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 30 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 B demand. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 31 SAT_TEMP BACnet object to be calibrated to match other -5 to 1, OFF, 1° - 5°F presentations of this measurement. -2.7 to -0.5, OFF, This setting is only available if the REMOTE SENSOR is set to SAT. 0.5° - 2.7°C Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 32 (acts as if the setting is OFF). • If the system does not have a 2-stage heat pump, this selection is not available. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 33 The cycles per hour limitation become active again when the Y1, Y2, W1 or W2 outputs transition from ON to OFF. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 34 This change to the heat pump lockout temperature is not visible to the user while the auxiliary heat lockout temperature is being changed. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 35 The forced stage up occurs even if the differential demand is not met. 10 to 120 minutes NOTE Multiple heating stages or multiple cooling stages must exist to use this (10 minute decrements) feature. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 36 HUMIDITY SOURCE—Select the source for the humidity value. STAT STAT – use the temperature/humidity chip on the thermostat STAT RMT – use the remote humidity sensor connected to the H and C terminals of the thermostat. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 37 The O/B output is used for heat pump equipment, the humidifier, and the dehumidifier setting of the HumidiMiZer™. • The W2 output is used for 2 stages of heating, the humidifier, and the dehumidifier setting of HumidiMiZer™. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 38 This setting is not available if the configurable outputs (Y3, O/B, and W2) are already assigned to other functions. Any configurable output that is already assigned to another function is not shown in the DEHUM OUTPUT selections. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 39 BACnet 115k (115200). settings, there is a prompt to either cancel those settings or save the new setting, which forces a thermostat reset. This setting is not be displayed if BACnet is disabled. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 40 Changing the Device ID triggers an I-Am message to be sent over BACnet and will increment the Database Revision property in the Device object. This setting is not displayed if BACnet is disabled. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 41 20 – 20 minutes Present Value property of the output object before the value returns to the 60 – 60 minutes inactive state. UNLM - Unlimited NOTE This setting is not displayed if BACnet is disabled. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 42 (humidifier, dehumidifier and occupancy output). Any output that is still available after configuring primary and optional equipment can be made available as a BACnet network-controlled output. This setting is not displayed if BACnet is disabled. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 43 This (10 minute increments) allows for recovery time when transitioning from unoccupied to occupied periods The top line in this screen scrolls to display ID TEMP FLT INHIBIT. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 44 Release the DEFAULT button to cancel the countdown at any time before the 5 seconds elapse. • After the factory settings are restored, the control returns to BACNET ENABLE to allow the installer to properly configure the thermostat. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 45 MAX HEAT SETPOINT - 88°F MIN COOL SETPOINT 52°F AUX HEAT LOCKOUT HP LOCKOUT STAGE DELAY 10 MIN FORCED STAGE UP 30 MIN DIFFERENTIAL 1.0°F AIR FILTER REMINDER 3000 HRS OCCUPANCY OUTPUT OCCUPANCY INPUT OCCUPIED Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 46 The thermostat is already in the setup mode if SETUP WI-FI was changed from NO to YES in the past 2 minutes or if the installer disconnected from a Wi-Fi network in the past 2 minutes. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 47 Once a heating or cooling demand is satisfied on the thermostat, the MINIMUM OFF timer is set to a 300-second value (5 minutes) and then begins to count down each second. Heating and cooling outputs are de-energized the entire time that this timer has a value greater than 0. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 48 The faults and system events display in the banner while fault condition exists. You can see a history of the faults and system events in WIFIStat mobile app under Alerts. The history is comprised of the 5 most recent logged items, with the most recent event being listed at the top. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 49 ECONOMIZER FAULT Remote sensor is set to ECFL and there is a short between terminals T and C. System Events FILTER REMINDER Filter change reminder is active (run hours have expired or remote input shorted). Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 50 GATED_WRITE MINUTES DLY_BW_FUEL AV:507 only) Cycles Per Hour GATED_WRITE CYCLES_PER_HOUR CYCLES_HR AV:508 Max Heat Setpoint GATED_WRITE DEGREES_FAHRENHEIT MAX_HT_SP AV:509 Min Cool Setpoint GATED_WRITE DEGREES_FAHRENHEIT MIN_CL_SP AV:510 Aux Heat Lockout (HP GATED_WRITE DEGREES_FAHRENHEIT AUX_HT_LCKOUT AV:511 Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 51 READ_WRITE 0=DISABLED AUTO_DST BV:402 1=ENABLED Wi-Fi Enable READ_WRITE 0=DISABLED WIFI_ENABLE BV:403 1=ENABLED Setpoint Override READ_WRITE 0=DISABLED SETPT_OVERRIDE BV:404 1=ENABLED BACnet BMS Occupancy GATED_WRITE 0=UNOCCUPIED BMS_OCC BV:405 1=OCCUPIED Filter Timer Reset READ_WRITE 0=INACTIVE FLTR_TMR_RST BV:406 Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 52 HUMIDITY RANGE LOW READ_ONLY 0=INACTIVE HUM_TOO_LO BV:910 1=ACTIVE OUTDOOR SENSOR READ_ONLY 0=INACTIVE OD_TEMP_FAIL BV:911 FAILURE 1=ACTIVE NOT CONNECTED TO READ_ONLY 0=INACTIVE SRVR_CONN_FAIL BV:912 SERVER 1=ACTIVE NOT CONNECTED TO READ_ONLY 0=INACTIVE RTR_CONN_FAIL BV:913 ROUTER 1=ACTIVE Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 53 1=NONE REMOTE_SENSOR MSV:502 2=OUTDOOR 3=SPACE 4=AVERAGE 5=OCCUPANCY 6=FAULT_INPUT 7=SAT Dehumidification Type GATED_WRITE 1=NO DEHUM_TYPE MSV:503 2=YES 3=OVRCRL(2F) 4=HUMIDIMIZER Occupancy Output GATED_WRITE 1=OFF OCC_OUTPUT MSV:504 Terminal 2=Y3 3=O/B 4=W2 Humidification Output GATED_WRITE 1=OFF HUM_OUTPUT MSV:505 Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 54 Analog Value Objects Binary Value Objects Multistate Value Objects BACnet Interoperability Building Blocks (BIBBs) Data Sharing BIBBs Execute Read Property (DS-RP-B) Execute Read Property Multiple (DS-RPM-B) Execute Write Property (DS-WP-B) Execute Write Property Multiple (DS-WPM-B) Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 55 The Present_Value of this object is above normal. No-output The output is not used in the current configuration. Unreliable-other This object is not relevant with the current configuration. No-sensor The sensor is not used in the current configuration. Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 56 Input Meas. Input Object Network Object Object Used for Equip. Control Space Temp ID_SPACE_TEMP (AI100) NET_SP_TEMP (AV103) SP_TEMP_CTRL (AV104) Space Humidity ID_SPACE_HUM (AI101) NET_SP_HUM (AV105) SP_HUM_CTRL (AV106) Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 57 De-energized The following table shows the three outputs and the objects that configure and control them. Controlling Object Mode Object Physical Output NET_GP_Y3_OUT (BV211) NET_GP_Y3_MODE (MSV509) NET_GP_W2_OUT (BV212) NET_GP_W2_MODE (MSV510) NET_GP_OB_OUT (BV213) NET_GP_OB_MODE (MSV511) Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...
  • Page 58 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 Wi-Fi Thermostat 33TWSPL-4 • Rev. 9/27/2024...