Carrier ComfortVu TB-24-HM Installation And Operation Manual page 29

Wiring and DIP switch/jumper configurations – AC systems
with Humidifier for humidification
Config. 14:
HC12
1 Speed fan,
Humidifier
Outputs
11 Heat element
(5)
Economizer
12
(option – SW1.6 ON)
13 Fan (1 speed)
14 Compressor 2
15 Compressor 1
16 Humidifier
SW3
1 2 3 4 5 6 7
SW1
1 2 3 4 5 6
Jumpers
JP2, JP3
for analog
outputs
SW3.4 – HP (Heat pump):
(2)
HC (not heat pump):
SW3.5 – Compressor delay:
(3)
SW1.6 – Terminal 12 operation:
(5)
See drawing on page 21 for DIP switch and jumper locations.
Humidifier: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max
Config. 15:
HP21
1 Speed fan,
Humidifier,
Reheat for
Dehumidification
(2)
Heat element
(2)
(2 stage heat)
nd
(5)
Economizer
(option – SW1.6 ON)
Fan (1 speed)
(2)
Heat pump
(3) (3)
Compressor
Humidifier
8 1 2 3 4 5 6 7 8
1 2 3 4 5 6
ON = Heat pump active in cool, OFF = Heat pump active in heat
ON = Electrical heater, OFF = Oil/Gas heater (no fan)
ON = Disable, OFF = Enable
ON = Economizer
OFF = Terminal not in use
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