![background image](http://html.mh-extra.com/html/carrier/comfortvu-tb-24/comfortvu-tb-24_installation-and-operation-manual_2564061029.webp)
Config. 14:
HC12
1 Speed fan,
Humidifier
11
12
13
14
15
16
Heat element
Fan (1 speed)
Compressor 2
Compressor 1
Humidifier
Config. 15:
HP21
1 Speed fan,
Humidifier,
Reheat for
Dehumidification
Fan (1 speed)
Compressor
Heat pump
8
7
6
5
4
3
2
1
6
5
4
3
2
1
SW3
SW1
8
7
6
5
4
3
2
1
Heat element
(2
nd
stage heat)
Humidifier
6
5
4
3
2
1
Economizer
(option – SW1.6 ON)
JP3
JP2
3
Jumpers
JP2, JP3
for analog
outputs
1
3
1
JP3
JP2
3
1
3
1
- 29 -
Wiring and DIP switch/jumper configurations – AC systems
with Humidifier for humidification
Outputs
Humidifier: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max
See drawing on page 21 for DIP switch and jumper locations.
(2)
(2)
Economizer
(option – SW1.6 ON)
(5)
(5)
(2)
(3)
(3)
(2)
SW3.4 – HP (Heat pump):
ON = Heat pump active in cool, OFF = Heat pump active in heat
HC (not heat pump):
ON = Electrical heater, OFF = Oil/Gas heater (no fan)
(3)
SW3.5 – Compressor delay:
ON = Disable, OFF = Enable
(5)
SW1.6 – Terminal 12 operation:
ON = Economizer
OFF = Terminal not in use
Summary of Contents for ComfortVu TB-24
Page 7: ...TB 24 HM Dimensions 7 ...