Carrier 48FC Series Controls, Start-Up, Operation And Troubleshooting page 55

DISPLAY NAME
Input power from TRAN2
COFS
FIRE SHUTDOWN
IGC FAN REQUEST
IAQ LEVEL
OARH LEVEL
ECON ACT POSITION
FAN SUPPLY TEMP
RETURN AIR TEMP
OUTDOOR AIR TEMP
CIR.A SUC. PRESS
CIR.A DIS. PRESS
Configurable
SLIDER OFFSET VAL
SPACE TEMPERATURE
CIR.A HPS
IDF LIMIT SWITCH
FILTER STATUS SW
Configurable
PHASE MONITOR SW
TSTAT G INPUT
TSTAT Y1 INPUT
TSTAT Y2 INPUT
HUMIDISTAT
TSTAT W1 INPUT
TSTAT W2 INPUT
Optional power out
ECON CMD POSITION
COMMANDED IDF RPM
not used
not used
ALARM RELAY
ODF SPEED RELAY
COMP A LOADER
CCH RELAY
COMPRESSOR A1
PE1 RELAY
RH DISCH VALVE
RH LIQUID VALVE
COOL LIQUID VALVE
HEAT 2 RELAY
HEAT 1 RELAY
Building Automated System (BAS)
Ethernet
Expansion LEN Bus
Expansion LEN Bus
Local Equipment Network (LEN)
RNET Sensors
Display Copper Cable
RNET Service Access
Display Copper Cable
Local Equipment Network (LEN)
USB--- A
USB--- B
Keypad Ribbon Cable
Table 23 – Main Base Board (MBB) Connections
SENSOR LOCATION
INPUTS
Control Box
Dain Pan
Supply/Return/Space
Gas section
Return/Space
Economizer
Economizer
Indoor fan deck
Return
Outdoor coil
Circuit A Suction pipe
Circuit A Discharge pipe
Space
Space
Circuit A Discharge pipe
Indoor Fan
FIOP/Field--- installed
Field--- installed
Control Box
Space
Space
Space
Field--- installed
Space
Space
OUTPUTS
Not Used
Indoor fan section
Not Used
Not Used
Not Used
Not Used
COMMUNICATION
Building
Not Used
Not Used
Not Used
Building
DISPLAY CONNECTIONS
Not Used
55
I/O TYPE POINT NAME
24 VAC
24 VAC
Switch input
Switch input
0--- 20 mA
0--- 20 mA
2--- 10vdc
10k thermistor
10k thermistor
10k thermistor
0--- 5 VDC pressure transducer
0--- 5 VDC pressure transducer
0--- 20 mA
10k thermistor
10k thermistor
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input HUMDSTAT
Switch Input
Switch Input
24 VAC
0--- 20 mA
PWM1
PWM2
PWM3
Relay 11
Relay 10
Relay 9 COMP_ALD
Relay 8
Relay 7
Relay 6
Relay 5
Relay 4
Relay 3
Relay
Relay
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
Communication
CONNECTION PIN
NUMBER
J2, 1 and 8
COFS J4, 1--- 4
FIREDOWN J5, 1--- 4
IGC_IFO J6, 1--- 2
IAQ J7, 1, 5--- 6
OARH J7, 2, 6--- 7
DAMPPOS J7, 3, 8
FST J8, 1, 4
RAT J8, 2, 5
OAT J8, 3, 6
SSP_A J9, 1--- 2, 5
SDP_A J9, 4--- 3, 6
TB5, 4--- 6
SPTO TB5, 2--- 3
SPACE_T TB5, 1--- 2
CIRA_HPS QC, 1--- 2J18, 1, 3
IDF_LSM QC, 3--- 4J18, 2,4
FILTSAT TB3, 1--- 2
TB3, 3--- 4
PWR_STAT TB3, 5--- 6
G TB1, G
Y1 TB1, Y1
Y2 TB1, Y2
TB1, Y3
W1 TB1, W1
W2 TB1, W2
J1, 1--- 2
DAMPCMD J7, 4, 8
FSPD_RPM J10, 1--- 4
J11, 1--- 4
J12, 1--- 4
ALMOUT TB2, 3--- 4
OFR J3A, 1, 3
J3A, 2, 4
CCHR1 J3B, 1, 3
COMP_A1 J3B, 2, 4
PE1 J3C, 1--- 4
RDV_A J3D, 1, 4
RLV_A J3D, 2, 5
CLV_A J3D, 3, 6
HEAT_2 J3E, 1, 3
HEAT_1 J3E, 2, 4
TB4, 1--- 5
J13, J14
J15, 1--- 4
J16, 1--- 4
J17
J20, 1--- 4
J23
J24, 1--- 5
J1
J2
J3
J4
J6