ComfortVu™ BACnet Thermostat Model Standard TB-HM (Line voltage)Carrier Proprietary and Confidential CARRIER CORPORATION ©2020Installation and Operation Guide All rights reserved40Wiring and DIP Switch configurations 42 to 44 – FC systems - 4-pipewith Humidifier, without Reheat for dehumidificationOutputsConfig. 42:4-Pipe, 1/2/3 Speedsfan(1), HumidifierConfig. 43:4-Pipe, 1/2/3 Speedsfan(1), Cool valve PID,HumidifierConfig. 44:4-Pipe, 1/2/3 Speedsfan(1), Heat valve PID,Humidifier11 Fan high Fan high Fan high12 Fan medium(or Economizer(5))Fan medium(or Economizer(5))Fan medium(or Economizer(5))13 Fan low Fan low Fan low14 Heat valve Heat valve Cool valve(3)15 Cool valve(3) X X16 X X XAO1 X Cool valve PID(3) Heat valve PIDAO2 Humidifier Humidifier HumidifierSW3SW1(1) SW3.1, SW3.2 – Fan speeds: 1 speed (Low):2 speeds(Low and High):3 speeds(Low, Medium, and High):SW3.1 = ON, SW3.2 = OFFSW3.1 = OFF, SW3.2 = ONSW3.1 = OFF, SW3.2 = OFF(2) SW3.4 – 2nd heating stage: ON = Enable, OFF = Disable(3) SW3.5 – Chilled beam option: ON = Enable chilled beam (fan will not run with cooling)(4) SW1.3 = Dehumidification: ON – Use dehumidifier, OFF – Use reheat for dehumidification(5) SW1.6–Terminal 12 operation: ON = EconomizerOFF = Fan Medium (3 speeds) / Terminal not in use (1/2 speeds/VFS)Important: Economizer will not work in 3 fan speeds configuration.See drawing for DIP switch and jumper locations (page 24).Fan on/off: 110-230VAC, 2.5A max., PID valves, Humidifier: 0-10VDC, 0.5mA Not isolatedControl - Heat elements, Cool/Heat valves, Economizer: 110-230VAC, 0.3A max.
