Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 152

Packaged rooftop cooling units with gas heat, optional electric heat, or hydronic heat and comfortlink controls version 10.x
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RED LED - STATUS
J1
J2
J3
J4
J5
J6
J7
POINT NAME
INPUTS
RMTIN
Remote Input State
ENTH
Enth. Switch Read High?
SFS
Supply Fan Status Switch
CIRCAHPS
Circ A High Press. Switch
CIRCBHPS
Circ B High Press. Switch
FRZ
Freeze Status Switch
BP
Building Pressure
SP
Static Pressure
CCT
Air Temp Lvg Evap Coil
DTA1
A1 Discharge Temperature
RGTA
Suction Gas Temp Cir A
APS
Air Pressure Switch
OUTPUTS
MMV_A
Motor Master VFD A
Belimo Actuators
ECONCPOS
Econ Actuator 1 Command Position
ECN2CPOS
Econ Actuator 2 Command Position
ECN3CPOS
Econ Actuator 3 Command Position
HUMDCPOS
Humidifier Command Pos.
CONDFAN3
Condenser Fan Output 3
CONDFAN4
Condenser Fan Output 4
CONDFAN5
Condenser Fan Output 5
MLV
Minimum Load Valve
HIR
Heat Interlock Relay
HUM3WVAL
Humidimizer 3 Way Valve
GREEN LED - LEN (LOCAL EQUIPMENT NETWORK)
CEPL130346-01 HK 50AA029 CE BO 430346
STATUS
LEN
Fig. 32 — Main Base Board (MBB)
Table 95 — Rooftop Control Board (RXB) Inputs and Outputs
POINT DESCRIPTION
YELLOW LED -
CCN (CARRIER COMFORT NETWORK)
J8
I/O POINT NAME CONTROL BOARD CONNECTOR
TYPE OF I/O
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Switch Input
Transducer (4-20mA)
Transducer (4-20mA)
Thermistor
Thermistor
Thermistor
Thermistor
4-20mA
Digital
0-100% Position
0-100% Position
0-100% Position
0-100% Position
Relay
Relay
Relay
Relay
Relay
Relay
152
INSTANCE JUMPER (SET TO 1)
J9
DI1
RXB
DI2
RXB
DI3
RXB
DI4
RXB
DI5
RXB
DI6
RXB
AN1
RXB
AN2
RXB
AN3
RXB
AN4
RXB
AN5
RXB
AN6
RXB
RXB
PP/MP
RXB
PP/MP
RXB
PP/MP
RXB
PP/MP
RXB
PP/MP
RXB
RLY1
RXB
RLY2
RXB
RLY3
RXB
RLY4
RXB
RLY5
RXB
RLY6
RXB
J10
PIN NO.
J4, 1-2
J4, 3-4
J4, 5-6
J4, 7-8
J4, 9-10
J4, 11-12
J5, 1-3
J5, 4-6
J6, 1-2
J6, 3-4
J6, 5-6
J6, 7-8
J9, 1-2
J7, 1-3
J8, 1-3
J8, 4-6
J8, 7-9
J8, 10-12
J8, 13-15
J8, 16-18

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