Carrier Weathermaster 48P2030-100, Controls, Start-Up, Operation, Service, And Troubleshooting

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Fig. 33 — Controls Expansion Board (CEM)
Table 109 — Control Expansion Module (CEM) Inputs and Outputs
Table 110 — Compressor Expansion Board (CXB) Inputs and Outputs
Table 111 — Expansion Valve Control Board (EXV) Inputs and Outputs
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONNECTOR PIN NO.
INPUTS
DHDISCIN Dehumidify Switch Input Switch DI 1 J7, 1-2
DMD_SW1 Demand Limit 1 — Redline Switch DI 2 J7, 3-4
DMD_SW2 Demand Limit 2 — Loadshed Switch DI 3 J7, 5-6
PRES Pressurization Switch DI 4 J7, 7-8
EVAC Evacuation Switch DI 5 J7, 9-10
PURG Purge Switch DI 6 J7, 11-12
IAQIN IAQ Discrete Input Switch DI 7 J7, 13-14
OACFM Outside Air CFM — 4-20 (VAV) 4 to 20 mA AN7 J6, 1-3
OARH Outside Air RH (VAV) 4 to 20 mA AN8 J6, 4-6
SPRH Space RH 4 to 20 mA AN9 J6, 7-9
RARH Return Air RH 4 to 20 mA AN10 J6, 10-12
DMDLMTMA Demand Limit — 4-20 Thermistor AN1 J5, 1-2
SATRESMA SAT Reset 4-20 (VAV) Thermistor AN2 J5, 3-4
OAQ
Not Used
Not Used
Not Used OAQ — 4-20
—
—
— Thermistor
Thermistor
Thermistor
Thermistor AN3
AN4
AN5
AN6 J5, 5-6
J5, 7-8
J5, 9-10
J5, 11-12
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONNECTOR PIN NO.
INPUTS
CSB_A3
Compressor A3 Feedback Digital Input DIG1 J9, 10-12
CSB_B3 Compressor B3 Feedback Digital Input DIG2 J9, 7-9
Not Used Not Used Digital Input DIG3 J9, 4-6
Not Used Not Used Digital Input DIG4 J9, 1-3
OUTPUTS
Not Used
Not Used Relay RLY1 J6, 1-2
Not Used Not Used Relay RLY2 J6, 3-4
Not Used Not Used Relay RLY3 J6, 5-6
Not Used Not Used Relay RLY4 J6, 7-8
CMPB3 Compressor B3 Relay Relay RLY5 J6, 9-11
CMPA3 Compressor A3 Relay Relay RLY6 J6, 12-14
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME
CONNECTOR
PIN NO.
INPUTS
Not Used
Not Used Thermistor AN1 J5, 5-6
Not Used Not Used Thermistor AN2 J5, 7-8
Not Used Not Used Thermistor AN3 J5, 9-10
Not Used Not Used Thermistor AN4 J5, 11-12
Not Used Not Used Transducer (4-20 mA) AN5 J5, 1-2
Not Used Not Used Transducer (4-20 mA) AN6 J5, 3-4
OUTPUTS
COND_EXV
Humidimizer Control Valve 1 Stepper Motor EXV-1 J6, 1-5
BYP_EXV Humidimizer Control Valve 2 Stepper Motor EXV-2 J7, 1-5
CEBD430351
TEST
1
CEPL130351-01
PWR
TEST 2
J1 J2
J4 J3
J5
J6
J7
LEN
STATUS
RED LED - STATUS
GREEN LED -
LEN (LOCAL EQUIPMENT NETWORK)
ADDRESS
DIP SWITCH (ALL ON)