American Standard TRACER CH532 manual Hardware architecture, Inputs and output summary list

Hardware architecture

Table 2 - Inputs and output summary list

	TRACER CH532 Medium	TRACER CH532 Large
	Single circuit units	Dual circuit units
AI: Leaving water temperature sensor	B3: NTC	B3: NTC
AI: Entering water temperature sensor	B4: NTC	B4: NTC
AI: Ambient temperature sensor	B5: NTC	B5: NTC l
AI: Suction pressure circuit 1 - LP1 transducer	B1: 4..20mA	B1: 4..20mA
AI: Suction pressure circuit 2 - LP2 transducer		B6: 4..20mA
AI: Discharge pressure circuit 1 - HP1 transducer	B2: 4..20mA	B2: 4..20mA
AI: Discharge pressure circuit 2 - HP2 transducer		B7: 4..20mA
AI: External water setpoint reset (option)	B8: 0..10V-0..20mA	B8: 0..10V-0..20mA
AI: Unused	B6, B7	B9, B10
DI: Compressor C circuit 1 fault	ID1: 24Vac	ID1: 24Vac
DI: Compressor C circuit 2 fault		ID17: 24Vac
DI: Compressor A circuit 1 fault	ID3: 24Vac	ID3: 24Vac
DI: Compressor B circuit 1 fault	ID4: 24Vac	ID4: 24Vac
DI: Compressor A circuit 2 fault		ID11: 24Vac
DI: Compressor B circuit 2 fault		ID12: 24Vac
DI: High pressure Cut-out circuit 1 - HP1 switch	ID14H: 230Vac	ID14H: 230Vac
DI: High pressure Cut-out circuit 2 - HP2 switch		ID15H: 230Vac
DI: Auxiliary set point On/Off	ID8: 24Vac	ID8: 24Vac
DI: Fans circuit 1 fault	ID5: 24Vac	ID5: 24Vac
DI: Fans circuit 2 fault		ID18: 24Vac
DI: Circuit 1 On/Off (or Unit On/Off CH 532 medium)	ID13H: 230Vac	ID13H: 230Vac
DI: Circuit 2 On/Off		ID16H: 230Vac
DI: Water flow control input	ID2: 24Vac	ID2: 24Vac
DI: Water pump 1 fault	ID9: 24Vac	ID9: 24Vac
DI: Water pump 2 fault	ID10: 24Vac	ID10: 24Vac
DI: Faults external reset	ID6: 24Vac	ID6: 24Vac
DI: Cooling/Heating mode switch	ID7: 24Vac	ID7: 24Vac
DI: Unused	ID11, ID12	-
DO: Compressor A circuit 1 output	NO7: NO-230Vac	NO7: NO-230Vac
DO: Compressors B and C circuit 1 output	NO8: NO-230Vac	NO8: NO-230Vac
DO: Compressor A circuit 2 output		NO13: NO-230Vac
DO: Compressors B and C circuit 2 output		NO14: NO-230Vac
DO: Fan 1 output Wye (Y) contactor - circuit 1	NO3: NO-230Vac	NO3: NO-230Vac
DO: Fan 1 output Delta (D) contactor - circuit 1	NO4: NO-230Vac	NO4: NO-230Vac
DO: Fan 2 output circuit 1	NO5: NO-230Vac	NO5: NO-230Vac
DO: Fan 3 output circuit 1	NO6: NO-230Vac	NO6: NO-230Vac
DO: Fan 1 output Wye (Y) contactor - circuit 2		NO15: NO-230Vac
DO: Fan 1 output Delta (D) contactor - circuit 2		NO16: NO-230Vac
DO: Fan 2 output circuit 2		NO17: NO-230Vac
DO: Fan 3 output circuit 2		NO18: NO-230Vac
DO: Water pump 1	NO1: NO-230Vac	NO1: NO-230Vac
DO: Water pump 2	NO2: NO-230Vac	NO2: NO-230Vac
DO: Antifreeze heater	NC12: NO-230Vac	NC12: NO-230Vac
DO: Circuit 1 fault	NO9: NO-230Vac	NO9: NO-230Vac
DO: Circuit 2 fault		NO11: NO-230Vac
DO: Unit status or additional heating demand	NO10: NO-230Vac	NO10: NO-230Vac
DO: Unused	NO11, NO13	-
AO: Speed inverter - fan circuit 1 - HP1 output	Y1: 0..10V	Y1: 0..10V
AO: Speed inverter - fan circuit 2 - HP2 output		Y2: 0..10V
AO: 4-way valve circuit 1	Y3: 0..10V + CONVONOFF	Y3: 0..10V + CONVONOFF
AO: Unused	Y4	Y4
AO: 4-way valve circuit 2		Y5: 0..10V + CONVONOFF
AO: Unused		Y6
AO: Unused	Y2	Y2
Legend:
AI: Analog Input
DI: Digital Input
AO: Analog Output
DO: Digital Output
CONVONOFF: ON/OFF converter

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