Carrier Weathermaster 48P030-100 Controls, Start-Up, Operation, Service, And Troubleshooting page 151

Table 111 — Control Expansion Module (CEM) Inputs and Outputs
POINT NAME
INPUTS
DHDISCIN Dehumidify Switch Input
DMD_SW1 Demand Limit 1 — Redline
DMD_SW2 Demand Limit 2 — Loadshed
PRES Pressurization
EVAC Evacuation
PURG Purge
IAQIN IAQ Discrete Input
OACFM Outside Air CFM — 4-20 (VAV)
OARH Outside Air RH (VAV)
SPRH Space RH
RARH Return Air RH
DMDLMTMA Demand Limit — 4-20
SATRESMA SAT Reset 4-20 (VAV)
OAQ OAQ — 4-20
Not Used —
Not Used —
Not Used —
Table 112 — Compressor Expansion Board (CXB) Inputs and Outputs
POINT NAME
INPUTS
CSB_A3 Compressor A3 Feedback
CSB_B3 Compressor B3 Feedback
Not Used Not Used
Not Used Not Used
OUTPUTS
Not Used Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
CMPB3 Compressor B3 Relay
CMPA3 Compressor A3 Relay
Table 113 — Expansion Valve Control Board (EXV) Inputs and Outputs
POINT NAME POINT DESCRIPTION
INPUTS
Not Used Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
OUTPUTS
COND_EXV Humidimizer Control Valve 1
BYP_EXV Humidimizer Control Valve 2
CEBD430351
J1
J2
LEN
J4 J3
STATUS
J5
J6
GREEN LED -
RED LED - STATUS
LEN (LOCAL EQUIPMENT NETWORK)
Fig. 34 — Controls Expansion Board (CEM)
POINT DESCRIPTION
POINT DESCRIPTION
Thermistor
Thermistor
Thermistor
Thermistor
Transducer (4-20 mA)
Transducer (4-20 mA)
Stepper Motor
Stepper Motor
J7
ADDRESS
DIP SWITCH (ALL ON)
TYPE OF I/O
Switch DI 1
Switch DI 2
Switch DI 3
Switch DI 4
Switch DI 5
Switch DI 6
Switch DI 7
4 to 20 mA AN7
4 to 20 mA AN8
4 to 20 mA AN9
4 to 20 mA AN10
Thermistor AN1
Thermistor AN2
Thermistor AN3
Thermistor AN4
Thermistor AN5
Thermistor AN6
TYPE OF I/O
Digital Input DIG1
Digital Input DIG2
Digital Input DIG3
Digital Input DIG4
Relay RLY1
Relay RLY2
Relay RLY3
Relay RLY4
Relay RLY5
Relay RLY6
TYPE OF I/O I/O POINT NAME
AN1
AN2
AN3
AN4
AN5
AN6
EXV-1
EXV-2
151
TEST 2
I/O POINT NAME CONNECTOR PIN NO.
J7, 1-2
J7, 3-4
J7, 5-6
J7, 7-8
J7, 9-10
J7, 11-12
J7, 13-14
J6, 1-3
J6, 4-6
J6, 7-9
J6, 10-12
J5, 1-2
J5, 3-4
J5, 5-6
J5, 7-8
J5, 9-10
J5, 11-12
I/O POINT NAME CONNECTOR PIN NO.
J9, 10-12
J9, 7-9
J9, 4-6
J9, 1-3
J6, 1-2
J6, 3-4
J6, 5-6
J6, 7-8
J6, 9-11
J6, 12-14
CONNECTOR PIN NO.
J5, 5-6
J5, 7-8
J5, 9-10
J5, 11-12
J5, 1-2
J5, 3-4
J6, 1-5
J7, 1-5