Carrier ComfortVu Standard TB-HM, Installation And Operation Manual, Page: 40 / 73

ComfortVu™ BACnet Thermostat Model Standard TB-HM (Line voltage)Carrier Proprietary and Confidential CARRIER CORPORATION ©2020
Installation and Operation Guide
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36
Wiring and DIP Switch configurations 31 to 34 – FC systems - 4-pipe
Outputs
Config. 31:
4-Pipe, 1/2/3 Speeds
fan (1)
Config. 32:
4-Pipe, 1/2/3 Speeds
fan (1) , Floor heating
Config. 33:
4-Pipe, 1/2/3 Speeds
fan (1) , Cool valve PID
Config. 34:
4-Pipe, 1/2/3 Speeds
fan
(1)
, Cool valve PID,
Floor heating
11
Fan high Fan high Fan high Fan high
12
Fan medium
(or Economizer
(5)
)
Fan medium
(or Economizer
(5)
)
Fan medium
(or Economizer
(5)
)
Fan medium
(or Economizer
(5)
)
13
Fan low Fan low Fan low Fan low
14
Heat element
(2)
(2nd stage heat)
Floor heating
(1st stage heat-no fan)
Heat element
(2)
(2nd stage heat)
Floor heating
(1st stage heat–no
fan)
15
Cool valve
(3)
Cool valve
(3)
16
Heat valve
(1st stage heat)
Heat valve
(2nd stage heat)
Heat valve
(1st stage heat)
Heat valve
(2nd stage heat)
AO1
X X Cool valve PID
(3)
Cool valve PID
(3)
AO2
X X X X
SW3
SW1
(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 = OFF
SW3.1 = OFF, SW3.2 = ON
SW3.1 = 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 = 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 for DIP switch and jumper locations (page 24).
Fan on/off: 110-230VAC, 2.5A max., PID valves: 0-10VDC, 0.5mA Not isolated
Control - Heat elements, Cool/Heat valves, Economizer: 110-230VAC, 0.3A max.