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ComfortVu™ BACnet Thermostat Model Standard TB-24-HM (24 Vac)Carrier Proprietary and Confidential
CARRIER CORPORATION ©2020
Installation and Operation Guide
All rights reserved
31
Wiring and DIP switch configurations 16 to 19 – AC systems
with humidifier and Dehumidifier
Outputs
Config. 16:
HC21
1 Speed fan, Humidifier,
Dehumidifier
Config. 17:
HC11
1 Speed fan, Humidifier,
Dehumidifier
Config. 18:
HP11
1 Speed fan, Humidifier,
Dehumidifier
Config. 19:
1 Speed fan, Humidifier,
Dehumidifier
11
Heat element
(2nd stage heat)
Heat element
(2)
Heat pump
(2)
Heat pump
(2)
12
Heat element 1
(2)
(1st stage heat)
Economizer
(5)
(option – SW1.6 ON)
Economizer
(5)
(option – SW1.6 ON)
Heat element
(2nd stage heat)
13
Fan (1 speed)
Fan (1 speed)
Fan (1 speed)
Fan (1 speed)
14
Compressor
(3)
Compressor
(3)
Compressor
(3)
Compressor
(3)
15
Humidifier
Humidifier
Humidifier
Humidifier
16
Dehumidifier
(4)
Dehumidifier
(4)
Dehumidifier
(4)
Dehumidifier
(4)
SW3
SW1
Jumpers
JP2, JP3
analog
outputs
(1)
SW3.1, SW3.2 – Fan speeds:
2 speeds (Low and High):
3 speeds (Low, Med., and High):
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
(2)
SW3.4 – HP (Heat pump):
HC (not heat pump):
ON = Heat pump active in cool, OFF = Heat pump active in heat
ON = Electrical heater, OFF = Oil/Gas heater (no fan)
(3)
SW3.5 – Compressor delay:
ON = Disable, OFF = Enable
(4)
SW1.3 – Dehumidification:
ON = Use dehumidifier, OFF = Use reheat for dehumidification
(5)
SW1.6 – Terminal 12 operation:
ON = Economizer
OFF = Fan Medium (3 speeds) / Terminal not in use (2 speeds)
Important: Economizer will not work in 3 fan speeds configuration.
See drawing for
DIP switch and jumper locations
(page 23).
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
Summary of Contents for ComfortVu TB-24-HM
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Page 72: ...CARRIER CORPORATION 2020 Catalog No 11 808 723 01 2 18 2020 ...