Table of Contents
Advertisement
Wiring and DIP switch/jumper configurations 14 to 17 – FC systems - 4-
pipe
Config. 14:
4-Pipe, 1/2/3 Speeds
Outputs
Fan high
11
Fan medium
12
(or Economizer
Fan low
13
Heat element
14
(2nd stage heat)
Cool valve
15
Heat valve
16
(1st stage heat)
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
4-Pipe, 1/2/3 Speeds
(1)
(1)
fan
fan
Fan medium
)
(or Economizer
(5)
Floor heating (1st
(2)
stage heat – no fan)
Cool valve
(3)
(2nd 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.
Config. 15:
4-Pipe, 1/2/3 Speeds
, Floor heating
fan
Fan high
)
(5)
Fan low
(3)
Heat valve
30
Config. 16:
(1)
, Cool valve PID
Fan high
Fan medium
(or Economizer
)
(5)
Fan low
Heat element
(2)
(2nd stage heat)
Cool valve PID
(3)
Heat valve
(1st stage heat)
SW3.1 = ON, SW3.2 = OFF
SW3.1 = OFF, SW3.2 = ON
SW3.1 = OFF, SW3.2 = OFF
CARRIER CORPORATION ©2024
Config. 17:
4-Pipe, 1/2/3
speeds fan
(1)
, Cool/Heat
PID, Floor heating
Fan high
Fan medium
(or Economizer
)
(5)
Fan low
Floor heating (1st
stage heat – no fan)
Cool valve PID
(3)
Heat valve
(2nd stage heat)
All rights reserved
Advertisement
Table of Contents
