ComfortVu™ BACnet Thermostat Plus Model TBPL-H (Line voltage)Carrier Proprietary and Confidential CARRIER CORPORATION ©2020
Installation and Operation Guide All rights reserved
38
Wiring and DIP switch configurations 41 to 43 – FC systems - 4-pipe
4-Pipe, Fan VFS,
Humidifier, Reheat for
Dehumidification
1/2/3 Speeds fan(1),
Cool valve PID
Humidifier, Reheat for
Dehumidification
1/2/3 Speeds fan(1),
Heat valve PID
Humidifier, Reheat for
Dehumidification
X
Fan high
Fan high
Economizer
(5)
(option – SW2.6 ON)
Fan medium
(or Economizer
(5)
)
Fan medium
(or Economizer
(5)
)
X
Fan low
Fan low
Heat element
(2)
(2nd stage heat)
Heat element
(2)
(2nd stage heat)
Heat element
(2)
(2nd stage heat)
Cool valve
(3)
X
Cool valve
(3)
Heat valve
(1st stage heat)
Heat valve
(1st stage heat)
X
Humidifier
Cool valve PID
(3)
Heat valve PID
(1st stage heat)
Fan VFS
Humidifier
Humidifier
(1)
SW1.1, SW1.2 – Fan speeds:
1 speed (Low):
2 speeds(Low and High):
3 speeds(Low, Medium, and High):
SW1.1 = ON, SW1.2 = OFF
SW1.1 = OFF, SW1.2 = ON
SW1.1 = OFF, SW1.2 = OFF
(2)
SW1.4 – 2nd heating stage:
ON = Enable, OFF = Disable
(3)
SW1.5 – Chilled beam option:
ON = Enable chilled beam (fan will not run with 1st stage cooling)
(4)
SW2.3 – Dehumidification:
ON = Use dehumidifier
OFF = Use reheat for dehumidification
(5)
SW2.6 – Terminal 12 operation:
ON = Economizer
OFF = Fan Medium (3 speeds) / Terminal not in use (1/2 speeds/VFS)
Important: Economizer will not work in 3 fan speeds configuration.
See drawing in Wiring terminals and DIP switches (page 23) for DIP switch locations.
Fan on/off: 110-230 Vac, 2.5A max.
Humidifier, PID valves: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off, Heat elements, Cool/Heat valves, Economizer: 110*230 Vac, 0.3A max