141
Table 94 — Rooftop Control Board (RXB) Inputs and Outputs
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME
CONTROL
BOARD
CONNECTOR
PIN NO.
INPUTS
RMTIN Remote Input State Switch Input DI1 RXB J4, 1-2
ENTH Enth. Switch Read High? Switch Input DI2 RXB J4, 3-4
SFS Supply Fan Status Switch Switch Input DI3 RXB J4, 5-6
CIRCAHPS Circ A High Press. Switch Switch Input DI4 RXB J4, 7-8
CIRCBHPS Circ B High Press. Switch Switch Input DI5 RXB J4, 9-10
FRZ Freese Status Switch Switch Input DI6 RXB J4, 11-12
BP Building Pressure Transducer (4-20mA) AN1 RXB J5, 1-3
SP Static Pressure Transducer (4-20mA) AN2 RXB J5, 4-6
CCT Air Temp Lvg Evap Coil Thermistor AN3 RXB J6, 1-2
DTA1 A1 Discharge Temperature Thermistor AN4 RXB J6, 3-4
RGTA Suction Gas Temp Cir A Thermistor AN5 RXB J6, 5-6
APS Air Pressure Switch Thermistor AN6 RXB J6, 7-8
OUTPUTS
MMV_A Motor Master VFD A 4-20mA RXB J9, 1-2
Belimo Actuators Digital PP/MP RXB
J7, 1-3
ECONCPOS
Econ Actuator 1 Command Posi-
tion
0-100% Position PP/MP RXB
ECN2CPOS
Econ Actuator 2 Command Posi-
tion
0-100% Position PP/MP RXB
ECN3CPOS
Econ Actuator 3 Command Posi-
tion
0-100% Position PP/MP RXB
HTCLCPOS
Ht. Coil/Heat Reclaim Command
Position
0-100% Position PP/MP RXB
HUMDCPOS Humidifier Command Pos. 0-100% Position PP/MP RXB
CONDFAN3 Condenser Fan Output 3 Relay RLY1 RXB J8, 1-3
CONDFAN4 Condenser Fan Output 4 Relay RLY2 RXB J8, 4-6
CONDFAN5 Condenser Fan Output 5 Relay RLY3 RXB J8, 7-9
MLV Minimum Load Valve Relay RLY4 RXB J8, 10-12
HIR Heat Interlock Relay Relay RLY5 RXB J8, 13-15
HUM3WVAL Humidimizer 3 Way Valve Relay RLY6 RXB J8, 16-18
CEPL130346-01 HK 50AA029 CE BO 430346
STATUS
LEN
J1
J2
J4
J3
J5
J6
J7
J8
J9
J10
RED LED - STATUS
GREEN LED - LEN (LOCAL EQUIPMENT NETWORK)
YELLOW LED -
CCN (CARRIER COMFORT NETWORK)
INSTANCE JUMPER (SET TO 1)
Fig. 34 — Main Base Board (MBB)
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