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Carrier 33TWSP-4 Installation Manual
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Carrier 33TWSP-4 Installation Manual

Carrier 33TWSP-4 Installation Manual

Wi-fi thermostat
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Wi-Fi Thermostat 33TWSP-4
Installation Guide
Catalog No. 11-808-1120-01
Rev. 9/27/2024

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Summary of Contents for Carrier 33TWSP-4

  • Page 1 Wi-Fi Thermostat 33TWSP-4 Installation Guide Catalog No. 11-808-1120-01 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: Table Of Contents

    Contents What is the Connect 33TWSP-4 Thermostat? ..................... 1 Specifications ..........................1 Wiring the Connect Wi-Fi thermostat ......................2 To wire the thermostat to equipment ....................2 To wire and mount the thermostat ....................3 To wire for BACnet communication ....................5 Registering and settling up a mobile device for enhanced access ..............

  • Page 4: What Is The Connect 33Twsp-4 Thermostat

    What is the Connect 33TWSP-4 Thermostat? he 33TWSP-4 Wi-Fi thermostat 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 5: Wiring The Connect Wi-Fi Thermostat

    Wiring the Connect Wi-Fi thermostat To wire the thermostat to equipment Packaged Rooftop Units Hydronic Fan Coil Dual fuel systems Furnace/AC System (Furnace and heat pumps) Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 6: To Wire And Mount The Thermostat

    Place the thermostat base against your wall to mark drill holes. 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. ○ Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 7 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. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 8: 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 9: Registering And Settling Up A Mobile Device For Enhanced Access

    Select SETUP NEW THERMOSTAT and follow the WIFIStat App instructions. After registering the thermostat, enter servicing contractor's name and phone number on the SERVICE INFO screen. On the THERMOSTATS screen, select the thermostat from list and the mobile app's HOME screen appears. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 10: Using The Wifistat Website Or App

    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 33TWSP-4 • Rev. 9/27/2024...
  • Page 11 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 33TWSP-4 • Rev. 9/27/2024...

  • Page 12: Configuring The System

    Humidifier ○ Humid-MiZer™ dehumidification ○ Occupancy Output ○ COMPRESSOR TYPE — The type of the unit's compressors(s) NOTE Select HP for the HEAT EQUIP TYPE to define the auxiliary heat type. NONE, A/C, HP Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 13 FAN ON WITH W — Supplies a fan output demand as soon as a W1 or W2 output demand is active. YES/NO Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 14 NOTE This selection disables the timed air filter reminder functionality. SAT TEMP OFFSET — Allows temperature offsets from -5° to 5°. 0°F NOTE Only available when Remote Sensor Input > SAT is enabled. -5 to 5°F (1° increments) Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 15 If YES/NO set to YES, the thermostat cannot be configured for Humidi-MiZer™ or Dehumidification. See HUM/DEHUM OUTPUT in this table for output relay details. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 16 NOTE If the system demand is greater than 3°F, then this configuration is ignored for the current heating or cooling cycle because the staging timers are canceled to allow full equipment capacity to meet the large demand. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 17 DEALER PHONE — (Optional) This setting identifies the phone number of the installing contractor and can be carried forward from the sensor if input through the local display. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 18 DEVICE OBJECT NAME — Assign a unique alpha-numeric string. The default is 16xxxx the Carrier BACnet identifier (16) and the last 4 digits of the thermostat serial number. This parameter is limited to a maximum of 16 characters. DEVICE LOCATION — (Optional) Use to provide details about thermostat location.

  • Page 19: Operating Your System Using The Wifistat

    • 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 20: Occupancy

    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 21: Heating

    The thermostat's application and configuration determine the specific heating sequence. It can control up to 4 stages of heating when configured for non-Carrier heat pump applications, or up to 2 stages of heating for non-heat pump applications. When applied to a Carrier commercial heat pump, HEAT TYPE must be set to GAS.

  • Page 22: Humidification

    NOTE For details about this calculation, see HUMIDITY. Humidification 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. The following conditions must be true for dehumidification to operate: •...

  • Page 23: Using The Wifistat Screens

    EXAMPLE In a single stage heating system, the W2 output could be used as the occupancy output to enable the ECON during occupied periods. HOME The HOME screen is typically what the end user sees. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 24: Screen Functions

    OCCUPIED setpoints or UNOCCUPIED if the heat and cool setpoints match the Unoccupied setpoints. If neither is true, HOLD displays. When the schedule is paused, the remaining hold time shows in the lower right corner. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 25: Mode

    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: • • • Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 26: Humidi-Mizer

    Y3, W2, or O/B, based on the item available and selected in HUM/DEHUM OUTPUT configuration. See To configure advanced System Settings. 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 27: Fan

    On the thermostat itself, you can select which screens you want on the Banner by pressing the buttons to check the ones you want and then uncheck the ones you do not want. The default screens are: • DATE & TIME • FAN STATUS • OUTDOOR TEMP Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 28: Date And Time

    PROX SENSITIVITY — Change the proximity sensing feature from HIGH to MEDIUM MEDIUM to LOW. Increasing the sensitivity increases the range the sensor can HIGH/MEDIUM/LOW detect presence, but also increases the possibility of a false presence. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 29: Lockout

    You can use this screen to view software update history, fault history, and system events. Swipe up or down on the vertical yellow Row Indicator to scroll through logged events. The log includes: • STARTUP • SOFTWARE UPDATE EVENTS • POWER CYCLE EVENTS Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 30: Status

    The START button is replaced with a STOP button and the CHANGE button disappears. c) Once the countdown reaches 0, if another stage exists, it starts and the text changes to 2ND STAGE: 180. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 31: Troubleshooting

    Outputs based on demand and configuration *Rev *Rev Demands Stages Y1 Val=0 Val=B Fan Only Cool 1 (A/C) Cool 2 (A/C) Cool 3 (A/C) Cool 1 (Heat Pump) Cool 2 (Heat Pump) Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 32: Fault Definitions

    NOTE Use this table along with the HUM/DEHUM table, if either of those functions are enabled. See HUMIDITY (page 22). Fault definitions The following Fault messages are displayed and logged in the banner during the fault condition and then sent to the Cloud server. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 33 WI-FI HARDWARE FAULT Communications error occurred with Wi-Fi module (resets after valid message received) ECONOMIZER FAULT Contact closure on remote sensor input, as determined by Economizer LOCKOUT User has entered incorrect pin 5 consecutive times Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 34: Recovering From A Power Outage

    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 6)”. Follow the instructions within the app. Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 35: Compliance

    AI:100 Temperature Indoor Space Humidity WRITE_WHEN_OOS PERCENT_RELATIVE_HUMIDITY ID_SPACE_HUM AI:101 Remote Space READ_ONLY DEGREES_FAHRENHEIT REM_SPACE_TEMP AV:100 Temperature Outdoor Temperature READ_ONLY DEGREES_FAHRENHEIT OD_TEMP AV:101 Supply Air Temperature READ_ONLY DEGREES_FAHRENHEIT AV:102 Network Space READ_WRITE DEGREES_FAHRENHEIT NET_SP_TEMP AV:103 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 36 Stage Change Temp GATED_WRITE DELTA_DEGREES_FAHRENHEIT DIFFERENTIAL AV:515 Differential Line Frequency GATED_WRITE HERTZ LINE_FREQ AV:516 Indoor Temperature GATED_WRITE DELTA_DEGREES_FAHRENHEIT ID_TEMP_OFF AV:517 Offset 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 37 Network Space Temp READ_WRITE 0=DISABLED NET_SP_TEMP_EN BV:407 Enable 1=ENABLED Network Space Hum READ_WRITE 0=DISABLED NET_SP_HUM_EN BV:408 Enable 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 38 1=ACTIVE WIFI HARDWARE FAULT READ_ONLY 0=INACTIVE 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 39 Terminal 2=Y3 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 2=30 MIN 3=60 MIN Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...
  • Page 40 2=20 MIN 3=1 HR 4=UNLIMITED 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 Wi-Fi Thermostat 33TWSP-4 • Rev. 9/27/2024...

  • Page 41: Document Revision History

    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 33TWSP-4 • Rev. 9/27/2024...