Carrier 50TCQA Installation Instructions Manual

Also see for 48TC*D: Service and maintenance instructions Installation instructions

Contents

21Table 4 – Space Sensor ModeTB1 TERMINAL FIELD CONNECTION INPUT SIGNAL1 T55---SEN/T56---SEN Analog (10k thermistor)2 RMTOCC Discrete, 24VAC3 T55---SEN/T56---SEN Analog (10k thermistor)4 CMPSAFE Discrete, 24VAC5 T56---SET Analog (10k thermistor)6 FSD Discrete, 24VAC7 LOOP---PWR Analog, 24VDC8 SPS Discrete, 24VAC9 IAQ ---SEN Analog, 4---20mA10 FILTER Discrete, 24VAC11 IAQ ---COM/OAQ ---COM/RH ---COM Analog, 4---20mA12 CCN + (RED) Digital, , 5VDC13 OAQ ---SEN/RH ---SEN Analog, 4---20mA14 CCN Gnd (WHT) Digital, 5VDC15 AUX OUT(Power Exhaust) (Output)Discrete 24VAC16 CCN --- (BLK) Digital, 5VDCLEGEND:T55 --- Space Temperature Sensor FSD --- Fire ShutdownT56 --- Space Temperature Sensor IAQ --- Indoor Air Quality (CO 2 )CCN --- Carrier Comfort Network (communication bus) OAQ --- Outdoor Air Quality (CO 2 )CMPSAFE --- Compressor Safety RH --- Relative HumidityFILTER --- Dirty Filter Switch SFS --- Supply Fan StatusTable 5 – Thermostat ModeTB1 TERMINAL FIELD CONNECTION INPUT SIGNAL1 RAT SEN Analog (10k thermistor)2 G Discrete, 24VAC3 RAT SEN Analog (10k thermistor)4 Y1 Discrete, 24VAC56 Y2 Discrete, 24VAC7 LOOP---PWR Analog, 24VDC8 W1 Discrete, 24VAC9 IAQ ---SEN Analog, 4---20mA10 W2 Discrete, 24VAC11 IAQ ---COM/OAQ ---COM/RH ---COM Analog, 4---20mA12 CCN + (RED) Digital, 5VDC13 OAQ ---SEN/RH ---SEN Analog, 4---20mA14 CCN Gnd (WHT) Digital, 5VDC15 AUX OUT (Power Exhaust) (Output) Discrete 24VAC16 CCN --- (BLK) Digital, 5VDCLEGEND:CCN --- Carrier Comfort Network (communication bus) RH --- Relative HumidityG --- Thermostat Fan W1 --- Thermostat Heat Stage 1IAQ --- Indoor Air Quality (CO 2 ) W2 --- Thermostat Heat Stage 2OAQ --- Outdoor Air Quality (CO 2 ) Y1 --- Thermostat Cool Stage 1RAT --- Return Air Temperature Y2 --- Thermostat Cool Stage 250TCQA