Carrier ComfortVu Standard TB-HM, Installation And Operation Manual, Page: 32 / 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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28
Wiring and DIP Switch configurations – AC systems 1 to 4
Outputs
Config. 1:
HC32
1 Speed fan
Config. 2:
HP42
1 Speed fan
Config. 3:
HP22
2/3 Speeds fan
Config. 4:
HP21
2/3 Speeds fan (1)
11
Heat element 3
(3rd stage heat)
Heat element 2
(4th stage heat)
Fan high Fan high
12
Heat element 2
(2nd stage heat)
Heat element 1
(3rd stage heat)
Fan medium
(or Economizer
(5)
)
Fan medium
(or Economizer
(5)
)
13
Fan (1 speed) Fan (1 speed) Fan low Fan low
14
Compressor 2
(3)
Compressor 2
(3)
Compressor 2
(3)
Heat element
(2nd stage heat)
15
Compressor 1
(3)
Compressor 1
(3)
Compressor 1
(3)
Compressor
(3)
16
Heat element 1
(2)
(1st stage heat)
Heat pump
(2)
Heat pump
(2)
Heat pump
(2)
SW3
SW1
AO1 X X X X
AO2
X X X X
(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 24).
Fan on/off: 110-230VAC, 2.5A max.
Control - Heat elements, Heat pump, Compressors, Economizer: 110-230VAC, 0.3A max.