Wiring And Dip Switch Configurations 18 To 21 - Fc Systems - 4-Pipe - Carrier TB-24 Installation And Operation Manual

Wiring and DIP switch configurations 18 to 21 – FC systems - 4-pipe
Config. 18:
Outputs
4-Pipe, Fan VFS
11
Economizer
12
(option – SW1.6 ON)
13
Heat valve
14
Cool valve
15
Fan VFS
16
SW3
SW1
Jumpers
JP2, JP3
analog
outputs
(1)
SW3.1, SW3.2 – Fan speeds:
(2) SW3.4 – 2nd heating stage:
(3)
SW3.5 – Chilled beam option:
(4) SW1.3 = Dehumidification:
(5) SW1.6–Terminal 12 operation:
See drawing for DIP switch and jumper locations (page 23).
Fan VFS, PID valves: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off, Heat elements, Cool/Heat valves, Economizer: 24 Vac, 0.5A max
ComfortVu™ BACnet Thermostat Model Standard TB-24 (24 Vac)Carrier Proprietary and Confidential
Installation and Operation Guide
Config. 19:
4-Pipe, 1/2/3 Speeds
fan (1) , Heat valve PID
X Fan high
Fan medium
(5)
(or Economizer
X
Heat element
(2nd stage heat)
Cool valve
(3)
Heat valve
(1st stage heat)
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 – Use dehumidifier, OFF – Use reheat for dehumidification
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.
4-Pipe, Fan VFS, Heat
) (option – SW1.6 ON)
(5)
Fan low
(2)
Heat valve PID
(3)
31
Config. 20:
valve PID
X
Economizer
(5)
(option – SW1.6 ON)
X
Cool valve
(3)
Fan VFS
SW3.1 = ON, SW3.2 = OFF
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
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Config. 21:
4-Pipe, Fan VFS, Cool
valve PID
X
Economizer
(5)
X
Heat valve
Cool valve PID
(3)
Fan VFS
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