Carrier WeatherExpert 48N2 - Page 145

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Table 98 — Compressor Expansion Board (CXB) Inputs and Outputs
Table 99 — Expansion Valve Control Board A (EXV-A) Inputs and Outputs
Table 100 — Expansion Valve Control Board B (EXV-B) Inputs and Outputs
Table 101 — Expansion Valve Control Board C (EXV-C) Inputs and Outputs
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONTROL BOARD
CONNECTOR
PIN NO.
INPUTS
CSB_A3 Compressor A3 Feedback Digital Input DIG1 CXB J5, 10-12
CSB_B3 Compressor B3 Feedback Digital Input DIG2 CXB J5, 7-9
CSB_A4 Compressor A4 Feedback Digital Input DIG3 CXB J5, 4-6
CSB_B4 Compressor B4 Feedback Digital Input DIG4 CXB J5, 1-3
OUTPUTS
HS9 Heat Relay 9 Relay RLY1 CXB J6, 1-2
HS10 Heat Relay 10 Relay RLY2 CXB J6, 3-4
CMPB4 Compressor B4 Relay Relay RLY3 CXB J6, 5-6
CMPB3 Compressor B3 Relay Relay RLY4 CXB J6, 7-8
CMPA4 Compressor A4 Relay Relay RLY5 CXB J6, 9-11
CMPA3 Compressor A3 Relay Relay RLY6 CXB J6, 12-14
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONTROL BOARD
CONNECTOR
PIN NO.
INPUTS
CASTEXV1
Cir A EXV1 Suction Tempera-
ture
Thermistor AN1 EXV-A J5, 5-6
CASTEXV2
Cir A EXV2 Suction Tempera-
ture
Thermistor AN2 EXV-A J5, 7-8
LT_A Circuit A Liquid Temperature Thermistor AN3 EXV-A J5, 9-10
SFBYIN Supply Fan Bypass Input Thermistor AN4 EXV-A J5, 11-12
Not Used Not Used Transducer (4-20mA) AN5 EXV-A J5, 1-2
Not Used Not Used Transducer (4-20mA) AN6 EXV-A J5, 3-4
OUTPUTS
CA_EXV1 Circuit A EXV 1 Stepper Motor EXV-1 EXVA J6, 1-5
CA_EXV2 Circuit B EXV 1 Stepper Motor EXV-2 EXVA J7, 1-5
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONTROL BOARD
CONNECTOR
PIN NO.
INPUTS
CBSTEXV1
Cir B EXV1 Suction Tempera-
ture
Thermistor AN1 EXV-B J5, 5-6
CBSTEXV2
Cir B EXV2 Suction Tempera-
ture
Thermistor AN2 EXV-B J5, 7-8
LT_B Circuit B Liquid Temperature Thermistor AN3 EXV-B J5, 9-10
PEBYIN PE/Ret Fan Bypass Input Thermistor AN4 EXV-B J5, 11-12
Not Used Not Used Transducer (4-20mA) AN5 EXV-B J5, 1-2
Not Used Not Used Transducer (4-20mA) AN6 EXV-B J5, 3-4
OUTPUTS
CB_EXV1 Circuit A EXV 2 Stepper Motor EXV-1 EXVB J6, 1-5
CB_EXV2 Circuit B EXV 2 Stepper Motor EXV-2 EXVB J7, 1-5
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONTROL BOARD
CONNECTOR
PIN NO.
INPUTS
Not Used Not Used Thermistor AN1 EXV-C J5, 5-6
Not Used Not Used Thermistor AN2 EXV-C J5, 7-8
Not Used Not Used Thermistor AN3 EXV-C J5, 9-10
Not Used Not Used Thermistor AN4 EXV-C J5, 11-12
Not Used Not Used Transducer (4-20mA) AN5 EXV-C J5, 1-2
Not Used Not Used Transducer (4-20mA) AN6 EXV-C J5, 3-4
OUTPUTS
COND_EXV Condenser EXV Position Stepper Motor EXV-1 EXV J6, 1-5
BYP_EXV Bypass EXV Position Stepper Motor EXV-2 EXV J7, 1-5