Wiring And Dip Switch Configurations - Carrier ComfortVu TB-24-HM Installation And Operation Manual

Wiring and DIP switch/jumper configurations – AC systems
Config. 1:
HC32
Outputs 1 Speed fan
Heat element 3
11
(3 stage heat)
rd
Heat element 2
12
(2 stage heat)
nd
13 Fan (1 speed)
14 Compressor 2
(3)
15 Compressor 1
Heat element 1
16
(1 stage heat)
st
SW3
1 2 3 4 5 6 7
SW1
1 2 3 4 5 6
Jumpers
JP2, JP3
for analog
outputs
SW3.1, SW3.2 – Fan speeds:
(1)
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.
Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max
Config. 2:
HP42
1 Speed fan
Heat element 2
(4 stage heat)
th
Heat element 1
(3 stage heat)
rd
Fan (1 speed)
Compressor 2
(3)
Compressor 1
(2)
(2)
Heat pump
8 1 2 3 4 5 6 7 8
1 2 3 4 5 6
2 speeds (Low and High):
3 speeds (Low, Med., and High):
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 = Fan Medium (3 speeds) / Terminal not in use (2 speeds)
Important: Economizer will not work in 3 fan speeds configuration.
Config. 3: Config. 4:
HP22
2/3 Speeds fan 2/3 Speeds fan
Fan high Fan high
Fan medium Fan medium
(5)
(or Economizer ) (or Economizer )
Fan low Fan low
Compressor 2 Heat element
(3)
Compressor 1 Compressor
(2)
Heat pump Heat pump
1 2 3 4 5 6 7 8 1 2 3
1 2 3 4 5 6 1 2 3
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
- 25 -
HP21
(5)
(2)
(3)
(2)
4 5 6 7 8
4 5 6