Config. 10:
HC22
1 Speed fan,
Humidifier,
Reheat for
Dehumidification
11
12
13
14
15
16
Heat element 2
(2
nd
stage heat)
Fan (1 speed)
Compressor 2
Compressor 1
Humidifier
Config. 11:
HP31
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
(3
rd
stage heat)
Heat element 1
(2
nd
stage heat)
Humidifier
6
5
4
3
2
1
Config. 12:
HC11
2/3 Speeds fan,
Humidifier,
Reheat for
Dehumidification
Compressor
8
7
6
5
4
3
2
1
Humidifier
6
5
4
3
2
1
Fan medium
(or Economizer )
Fan high
Fan low
Heat element 1
(1
st
stage heat)
Heat element
8
7
6
5
4
3
2
1
6
5
4
3
2
1
Config. 13:
HP21
2/3 Speeds fan,
Reheat for
Dehumidification
Compressor
Heat pump
8
7
6
5
4
3
2
1
6
5
4
3
2
1
Fan medium
(or Economizer )
Fan high
Fan low
Heat element
(2
nd
stage heat)
JP3
JP2
3
Jumpers
JP2, JP3
for analog
outputs
1
3
1
JP3
JP2
3
1
3
1
JP3
JP2
3
1
3
1
JP3
JP2
3
1
3
1
- 28 -
Wiring and DIP switch/jumper configurations – AC systems
w/wo Humidifier for humidification, with Reheat for dehumidification
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.
(3)
(3)
(3)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
SW3.1, SW3.2 – Fan speeds:
2 speeds (Low and High):
SW3.1 = OFF, SW3.2 = ON
3 speeds (Low, Med., and High):
SW3.1 = OFF, SW3.2 = OFF
(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 = Fan Medium (3 speeds) / Terminal not in use (2 speeds)
Important: Economizer will not work in 3 fan speeds configuration.
(5)
(5)
Summary of Contents for ComfortVu TB-24
Page 7: ...TB 24 HM Dimensions 7 ...
