CG-SVU01B-E4 7
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
Hardware architecture
