Carrier ComfortVu TB-24-HM Installation And Operation Manual page 32

Wiring and DIP switch/jumper configurations – FC systems – 2-pipe
with Humidifier for humidification and Reheat for dehumidification
Config. 24:
2-Pipe,
1/2/3 Speeds fan ,
Humidifier,
Reheat for
Dehumidification
Outputs
11 Fan high
Fan medium
12
(5)
(or Economizer )
13 Fan low
Heat element
14
(2 stage heat)
nd
15 Cool/Heat valve
16 Humidifier
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 – 2 heating stage:
(2) nd
SW3.5 – Chilled beam option:
(3)
SW1.6 – Terminal 12 operation:
(5)
See drawing on page 21 for DIP switch and jumper locations.
Fan VFS, PID valves, Hum., Dehum.: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off. Heat elements, Cool/Heat valves, Humidifier, Economizer: 24 Vac, 0.5A max
Config. 25:
2-Pipe,
(1)
1/2/3 Speeds fan ,
(1)
Cool/Heat PID,
Humidifier,
Reheat for
Dehumidification
Fan high
Fan medium
(5)
(or Economizer )
Fan low
(2) (2)
Heat element
(2 stage heat)
nd
Cooll/Heat
(3)
(3)
valve PID
Humidifier
8 1 2 3 4 5 6 7 8
1 2 3 4 5 6
1 speed (Low):
2 speeds(Low and High):
3 speeds(Low, Medium, and High):
ON = Enable, OFF = Disable
ON = Enable chilled beam (fan will not run with cooling)
ON = Economizer
OFF = Fan Medium (3 speeds) / Terminal not in use (1/2 speeds/VFS)
Important: Economizer will not work in 3 fan speeds configuration.
Config. 27:
Config. 26:
2-Pipe,
2-Pipe,
Fan VFS,
Fan VFS,
Cool/Heat PID,
Reheat for
Reheat for
Dehumidification
Dehumidification
X
(5)
Economizer Economizer
(option – SW1.6 ON) (option – SW1.6 ON)
X
(2)
Heat element Heat element
(2 stage heat) (2
nd nd
Cooll/Heat
(3)
Cool/Heat valve
valve PID
Fan VFS Fan VFS
1 2 3 4 5 6 7 8 1 2 3
1 2 3 4 5 6 1 2 3
SW3.1 = ON, SW3.2 = OFF
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
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X
(5)
X
(2)
stage heat)
(3)
4 5 6 7 8
4 5 6