Carrier Weathermaster 48P030-100 - Page 149

149
Fig. 32 — Economizer Control Board (EXB) and Rooftop Control Board (RXB)
Table 108 — Rooftop Control Board (RXB) Inputs and Outputs
POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME
CONNECTOR
PIN NO.
INPUTS
RMTIN Remote Occupancy Switch Switch Input DI1 J4, 1-2
ENTH Outdoor Enthalpy Switch Switch Input DI2 J4, 3-4
SFS Fan Status Switch Switch Input DI3 J4, 5-6
CIRCAHPS Compressor A1 HPS Feedback Switch Input DI4 J4, 7-8
CIRCBHPS Compressor B1 HPS Feedback Switch Input DI5 J4, 9-10
FRZ Hydronic Heat Freeze Stat Switch Input DI6 J4, 11-12
BP Building Pressure Transducer (4-20 mA) AN1 J5, 1-3
SP Supply Duct Pressure Transducer (4-20 mA) AN2 J5, 4-6
CCT
DTA1
RGTA
Not Used
Air Temp Leaving Evaporator Coil
Compressor A1 Disch Temp
Suction Gas Temp Circuit A
—
Thermistor
Thermistor
Thermistor
—
AN3
AN4
AN5
AN6
J6, 1-2
J6, 3-4
J6, 5-6
J6, 7-8
OUTPUTS
Not Used Not Used 4 to 20 mA AO1 J9, 1-2
ACT_CMD
PE_1_POS
PE_2_POS
ECONOPOS
ECON2POS
HYDV_POS
STHUM_POS
BELIMO ACTUATORS
Power Exhaust 1 Position
Power Exhaust 2 Position
Economizer Act. Curr. Pos.
Economizer 2 Act. Curr. Pos.
Hydronic Valve
Steam Humidifier
Digital PP/MP J7, 1-3
CONDFAN3 Condenser Fan Motor 3 Relay RLY1 J8, 1-3
CONDFAN4 Condenser Fan Motor 4 Relay RLY 2 J8, 4-6
PE2 Power Exhaust Relay 2 Relay RLY 3 J8, 7-9
MLV Minimum Load Valve Relay RLY 4 J8, 10-12
HIR Heat Interlock Relay Relay RLY 5 J8, 13-15
RHV Humidimizer 3 Way Valve Relay RLY 6 J8, 16-18