Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 153

POINT NAME POINT DESCRIPTION
INPUTS
PPS Plenum Press. Safety Sw.
SACFM Supply Air CFM
RACFM
Return Air CRM
OUTPUTS
MMV_B Motor Master VFD B
CMPA1CAP Compressor A1 Solenoid
HUMIDRLY Humidifier Relay
SFBYRLY Supply Fan Bypass Relay
PEBYRLY
PE/Ret. Fan Bypass Relay
Fig. 33 — Economizer Control Board (EXB) and Rooftop Control Board (RXB)
Table 96 — Economizer Control Board (EXB) Inputs and Outputs
Switch Input
Transducer (4-20mA)
Transducer (4-20mA)
4-20mA
Digital
Relay
Relay
Relay
TYPE OF I/O I/O POINT NAME
153
CONTROL
BOARD
DI1 EXB
AN1 EXB
AN2 EXB
AO1 EXB
PP/MP EXB
RLY1 EXB
RLY2 EXB
RLY3 EXB
CONNECTOR
PIN NO.
J4, 1-2
J5, 1-3
J5, 4-6
J9, 1-2
J7, 1-3
J8, 1-3
J8, 4-6
J8, 7-9