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Wiring and DIP switch/jumper configurations 10 to 13 – FC systems - 2-
pipe
Config. 10:
2-Pipe, 1/2/3 Speeds
Outputs
Fan high
11
Fan medium
12
(or Economizer
Fan low
13
Heat element
14
(2nd stage heat)
Cool/Heat valve
15
16
SW3
SW2
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
2-Pipe, 1/2/3 Speeds
fan
(1)
fan
(1)
Fan medium
)
(or Economizer
(5)
Heat element
(2)
(2nd stage heat)
(3)
X
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.
Config. 11:
Cool/Heat PID
Fan high
)
(option – SW1.6 ON)
(5)
Fan low
(2)
Cool/Heat
valve PID
(3)
X
29
Config. 12:
2-Pipe,
Fan VFS
X
Economizer
(5)
X
Heat element
(2)
(2nd stage heat)
Cool/Heat valve
(3)
Fan VFS
SW3.1 = ON, SW3.2 = OFF
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
CARRIER CORPORATION ©2024
Config. 13:
2-Pipe,
Fan VFS, Cool/Heat PID
X
Economizer
(5)
(option – SW1.6 ON)
X
Heat element
(2)
(2nd stage heat)
Cool/Heat
valve PID
(3)
Fan VFS
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