Carrier Fan Coil User Manual

Wiring inputs and outputs
Fan Coil CARRIER CORPORATION ©2020
Integration Guide All rights reserved
3
I/O
Type
I/O
Terminal
Gnd
Terminal
Point Name/
Function
Hardware/
Signal
Jumper
Position of
Pins
Zone Temp/
Zone Temp
AI
Rnet
Gnd
Space Temperature - Prime Variable
Communicating
N/A
CO
2
or RH
Sensor
AI
IN-1*
2 - Gnd
Optional IAQ or RH sensor
0-5 Vdc
IN-1
Bottom
SAT Sensor
AI
IN-2
4 - Gnd
Supply Air Temperature
10K Thermistor
IN-2
Top
RAT Sensor
AI
IN-3
6 - Gnd
Return Air Temperature
10K Thermistor
N/A
Changeover
Temp
AI
IN-4*
8 - Gnd
Changeover switch
Changeover sensor
Dry Contact
Thermistor
N/A
Input Channel
#5
BI
IN-5*
1 - Gnd
Remote Occupancy Contact
Fan Status
Dry Contact
N/A
Overflow
Contact
BI
IN-6
1 - Gnd
Condensate Overflow Switch
Dry Contact
N/A
OA Damper
AO
AO-1*
2 - Gnd
Outdoor Air Damper
0-10 Vdc
2-10 Vdc
N/A
2-Pipe Valve /
Heating Valve
AO
AO-2
4 - Gnd
2-Pipe Valve/Heating Coil Valve
0-10 Vdc
N/A
Cooling Valve
AO
AO-3
6 - Gnd
Cooling Valve
0-10 Vdc
N/A
Fan High Spd
BO
BO-1*
1 - Pwr
High Speed Fan
Stage 2 EH
Relay
N/A
Fan Med Spd
BO
BO-2*
1 - Pwr
Medium Speed Fan
Stage 3 EH
Relay
N/A
Fan G / Low Spd
BO
BO-3
1 - Pwr
Low Speed Fan
Relay
N/A
2-Pos Valve/
Heating Valve
BO
BO-4*
1 - Pwr
2-Pipe Valve
Heating Valve (4-pipe)
EH stage 1 (4-pipe)
Relay
N/A
Cooling Valve
BO
BO-5*
1 - Pwr
Cooling Valve (4-pipe)
EH stage 1 (w/2-Pipe/Electric Heat)
DX stage 1
Relay
N/A
Legend
AI - Analog Input
BI - Binary Input
AO - Analog Output
BO - Binary Output
*These channels are configurable.
NOTE Connect ZS or SPT sensor to the Rnet port.
Wiring inputs and outputs

Carrier Fan Coil Specifications

General

Control Type	Electronic
Input Voltage	24 VAC
Display	LCD
Communication Protocol	BACnet MS/TP
Mounting	Wall Mount
Operating Temperature	32°F to 122°F (0°C to 50°C)
Humidity Range	non-condensing