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Summary of Contents for Carrier TB-24
- Page 1 ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac) Installation and Operation Guide ©2024 Carrier. All rights reserved. • Catalog No. 11-808-722-01 • 1/26/2024...
- 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.
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Page 3: Table Of Contents
Contents Overview ..................................1 Specifications................................2 TBPL-24-H Dimensions ............................... 4 Technician Settings Index ............................5 Operating Instructions ..............................7 Quick Guide ................................7 Turning the thermostat ON and OFF ........................8 Selecting temperature scale ..........................8 Adjusting the Setpoint temperature ........................9 Selecting system mode ............................ - Page 4 Contents Technician Settings P83 to P88 ........................50 Technician Settings P89 to P99 ........................51 Technician Settings P101 to P109 ......................... 52 Technician Settings P114 to P119 ......................... 53 Technician Settings P122 to P187 ......................... 54 Alarms and indications ............................. 55 Document revision history ............................
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Page 5: Overview
BACnet Thermostat’s data. The TB-24 thermostat has a white plastic enclosure with an LCD display and buttons for user control. It has on-board temperature sensing, and its on-board inputs and outputs are used to control equipment and optional external sensing devices. -
Page 6: Specifications
• If not using an electrical box, flush-mount thermostat to wall (no wallplate needed). Weight 4.8 oz (0.14 kg) ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... - Page 7 Styrene and 1,3 - Propane sultone, which are known to the State of California to cause cancer. For more information, go to www.p65warnings.ca.gov. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide...
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Page 8: Tbpl-24-H Dimensions
TBPL-24-H Dimensions ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 9: Technician Settings Index
P72 – Fan VFS High speed percent in heating P37 – Freeze protection cut-out set point P74 – VFS Medium speed differential ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... - Page 10 P198 – Not in use P200 – Restore defaults Press the [On/Off] button or wait 60 seconds to return to normal display. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide...
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Page 11: Operating Instructions
Operating Instructions Quick Guide ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 12: Turning The Thermostat On And Off
Press the [On/Off] button to turn the thermostat ON or OFF. Selecting temperature scale e [C/F] button to switch between temperature scales. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 13: Adjusting The Setpoint Temperature
In Auto mode, the active mode icon (Cool or Heat) will flash. • Auto mode is not available in 2-Pipe system configuration. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 14: Selecting Fan Speed (For 2 And 3 Fan Speeds Configuration)
When ON, the fan will run on demand for cooling or heating. • When OFF, the fan will run continuously. Note: Auto fan cannot be selected in Fan only mode. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 15: Locking The Thermostat Buttons
Refer to technician parameter P18 “Door switch or key tag configuration” Economy by Key-tag Refer to technician parameter P18 “Door switch or key tag configuration” ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 16: Freeze Protection
Economizer will start when, and run as long as, both of the following conditions are satisfied: Teconomizer temperature < Room temperature - (Cool differential band / 2) Room Temperature > Setpoint temperature ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... - Page 17 When Economizer is active, the “Cool” symbol will appear (or flash when active) on display and the “Fan” symbol will flash. Economizer Active ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide...
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Page 18: Weekly Program
If a clock icon does not appear, ensure that the set-point temperature is not 10/11ºC or 50/52ºF, press ○ and hold the button to activate the program. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... - Page 19 At any time during the programming procedure, press the [On/Off] button to exit and return to normal display. Any changed values will be saved. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide...
- Page 20 3. Press the [C/F–Prog] button again. The MINUTES will flash. 4. Use the [+] and [-] buttons to adjust the start time minutes of the first event. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024...
- Page 21 3. Press the [C/F–Prog] button again. The MINUTES will flash. 4. Use the [+] and [-] buttons to adjust the start time minutes of the first event. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024...
- Page 22 Follow the steps above for the other schedule events of the same daily period (P2 for two events per day, or P2, P3 and P4 for four events per day). • Follow the steps above for all daily periods. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved...
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Page 23: Mac Address And Bacnet Device Instance Number
By default, the BACnet Device Instance Number is generated automatically by the thermostat (Vendor ID + MAC address). For example, Carrier Corporation vendor ID is 16, and if the MAC address is 075, the BACnet Device Instance Number is 16075. - Page 24 Subsequent reads/writes of this value will need to be done with the new device instance: bacnet://16113/AV:42/present_value, or bacnet://16113/BACnetDeviceInstanceNumber ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved...
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Page 25: Installation
Install the cove to the back panel; first the two bottom tabs and then the top tongue. Push until tight against the wall. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 26: Wiring Terminals
Remote economy switch / External PIR Power supply: 24 Vac CAUTION Do not connect line voltage to a thermostat that does not show the following symbol: ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 27: Dip Switch And Jumper Configurations
ON = End of line SW1.1 through SW1.6, and SW3.1 through SW3.8 See Wiring and DIP switch/jumper settings (page 26). ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 28: Ac Configurations
1 2 3 1 2 3 Fan speeds ○ ○ ○ ○ ○ ○ Economizer • Yes ○ Option ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 29: Fc Configurations For 4-Pipe Systems / Floor Heating
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Economizer • • Floor heating • Yes ○ Option ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 30: Wiring And Dip Switch/Jumper Configurations 1 To 4 - Ac Systems
See drawing for DIP switch and jumper locations (page 23). Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 31: Wiring And Dip Switch/Jumper Configurations 5 To 7 - Ac Systems
Fan VFS: 0-10 Vdc, 0.5 mA Not isolated Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 32: Wiring And Dip Switch/Jumper Configurations 8 To 9 - Ac Systems
See drawing for DIP switch and jumper locations (page 23). Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 33: Wiring And Dip Switch/Jumper Configurations 10 To 13 - Fc Systems - 2-Pipe
Fan VFS, PID valves: 0-10 Vdc, 0.5 mA Not isolated Control – Fan on/off, Heat elements, Cool/Heat valves, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 34: Wiring And Dip Switch/Jumper Configurations 14 To 17 - Fc Systems - 4-Pipe
Fan VFS, PID valves: 0-10 Vdc, 0.5 mA Not isolated Control – Fan on/off, Heat elements, Cool/Heat valves, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 35: Wiring And Dip Switch Configurations 18 To 21 - Fc Systems - 4-Pipe
Fan VFS, PID valves: 0-10 Vdc, 0.5 mA Not isolated Control – Fan on/off, Heat elements, Cool/Heat valves, Economizer: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 36: Wiring And Dip Switch/Jumper Configuration 22 - Fc Systems - 4-Pipe
See drawing for DIP switch and jumper locations (page 23). PID valves: 0-10 Vdc, 0.5 mA Not isolated Control – Fan on/off, Heat elements, Cool/Heat valves: 24 Vac, 0.5A max ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 37: Technician Settings
Range: 5…35°C / 41…95°F. Default: 30°C / 86°F. Note: The thermostat will stop heating regardless of the user’s setpoint ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 38: Technician Settings P04 To P07
In normal display, press and hold the [Mode] button for 7 seconds to unlock/relock these buttons. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 39: Technician Settings P08 To P10
Note: To view T3 on the BACnet Thermostat, see Technician Settings P84. P10 – Window contact (terminals IN1,0) polarity “01” - Normally open “00” - Normally closed ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 40: Technician Settings P11 To P15
“01” - Thermostat turns off when unoccupied and remains off when re-occupied. “02” - Thermostat uses economy setpoints when unoccupied. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 41: Technician Settings P16 To P25
Normally open “01” - Normally closed P25 – Economy setpoint for cooling Range: 5…35°C / 41…95°F Default: 30°C / 86°F ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 42: Technician Settings P26 To P30
“01” - LCD Backlight OFF P30 – Beeper ON or OFF “01” - Beeper ON “00” - Beeper OFF ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 43: Technician Settings P31 To P34
Range: 0…120 seconds Default: 0 seconds (no delay) P34 – Fan OFF delay in heating Range: 0…120 seconds Default: 30 seconds ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 44: Technician Settings P35 To P42
The display will change from “00” to “01” and back to “00”. P42 – Adjust filter alarm delay time counter (hours) Range: 0…999 hours Default: 0 hours (0 = Disable) ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 45: Technician Settings P43 To P44
The fan will stop if the temperature on T3 sensor drops below the cut-out temperature. See Technician Settings P08/P09. Range: 12...35°C / 54…95°F Default: 32°C / 90°F ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 46: Technician Settings P45 To P46
Range: 0.5...5°C / 1…10°F Default: 1°C / 2°F P46 – Cool differential band offset Range: -5…+5°C / -9…+9°F Default: 0°C / 0°F ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 47: Technician Settings P47 To P48
Range: 0.5...5°C / 1…10°F Default: 1°C / 2°F P48 – Heat differential band offset Range: -5…+5°C / -9…+9°F Default: 0°C / 0°F ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 48: Technician Settings P49 To P51
Range: 0...10°C / 0…20°F Default: 2°C / 4°F P51 – Shift between Heating stages Range: 0...49°C / 0…98°F Default: 2°C / 4°F ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 49: Technician Settings P52 To P57
Default: 0% Minimum valve opening. P57 – Heat proportional high limit (FC only) Range: 0...100% Default: 100% Maximum valve opening. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 50: Technician Settings P60 To P64
Range: 0…600 seconds Default: 5 seconds P64 – Time off-delay between cooling stages (AC only) Range: 0…600 seconds Default: 1 seconds ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 51: Technician Settings P65 To P70
P69 – Fan VFS High speed percent in cooling Range: 60...100% Default: 90% P70 – Fan VFS Low speed percent in heating Range: 0...30% Default: 30% ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 52: Technician Settings P71 To P75
P74 – VFS Medium speed differential Range: 10...50% Default: 35 P75 – VFS High speed differential Range: 10...50% Default: 35 ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 53: Technician Settings P76 To P79
P78 – Fan VFS Low limit in heating Range: 0...100% Default: 0% P79 – Fan VFS High limit in heating Range: 0...100% Default: 100% ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 54: Technician Settings P83 To P88
P88 – De-ice in heat break time (AC only) Range: 10… 30 Minutes Default: 25 Minutes The time interval between de-icing cycles. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 55: Technician Settings P89 To P99
“00” - One setpoint for cooling and heating “01” - Two setpoints, one for cool and one for heat ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 56: Technician Settings P101 To P109
US Program: Event start time, Mode, Fan speed, Setpoints (one or two) “01” - Eu program: Event start time, Stop time ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 57: Technician Settings P114 To P119
P118 – Cool PID Kd (FC only) Range: 0...100% Default: 1% P119 – Heat PID Kd (FC only) Range: 0...100% Default: 1% ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 58: Technician Settings P122 To P187
- Press the [+] button – the display will change from “00” to “01”. - Press the [On/Off] button to restore default settings. - The thermostat will turn Off. ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide... -
Page 59: Alarms And Indications
Window contact - Remote economy switch Economy by: • External PIR • Communication Economy by door switch Economy by key-tag ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... -
Page 60: Document Revision History
Added CE and C-Tick icons to Compliance specification Installation Changed step B and illustrations Technician Settings, P122 and P123 Changed from percent to time (seconds) ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential CARRIER CORPORATION ©2024 Installation and Operation Guide All rights reserved... - Page 61 Carrier ©2024 · Catalog No. 11-808-722-01 · 1/26/2024...
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