Emerson Liebert ICOM-DO Service Manual download pdf (Page 108)

iCOM

Control Training and Service Manual

DS Systems:

P3: Not Used

P4: 24 VAC Power

P4-1: Fuse 1 (24 VAC) P4-3: Fuse 3 (24 VAC)

P4-2: Fuse 2 (24 VAC) P4-4: Fuse 4 (24 VAC)

P7: Fluid Sensor

P7-1: Aquastat Sensor

P7-2: Aquastat Sensor

P8: 24 VAC Alarm Inputs

P8-1: 24 VAC (RAD1/ TS 50) P8-5: 24 VAC (HWA)

P8-2: 24 VAC (RAD2/ TS 51) P8-6: 24 VAC Out (TS 24)

P8-3: 24 VAC (RAD3/ TS 55) P8-7: 24 VAC Out (HWA)

P8-4: 24 VAC (RAD4/ TS 56) P8-8: no connection

P11: Low Pressure Switch Circuits

P11-1: DCV Signal to LPT1

P11-2: Cold Start Bypass 1 Signal

P11-3: LPT1 Input to MP

P11-4:

P11-5: DCV Signal to LPT2

P11-6: Cold Start Bypass 1 Signal

P11-7: LPT2 Input to MP

P11-8:

P12: Analog Sensor Inputs

P12-1: T+ Analog 1 (TS 41) P12-5: T+ Analog 3 (TS 45)

P12-2: T- Analog 1 (TS 42) P12-6: T- Analog 3 (TS 46)

P12-3: T+ Analog 2 (TS 43) P12-7: T+ Analog 4 (TS 47)

P12-4: T- Analog 2 (TS 44) P12-8: T- Analog 4 (TS 48)

P13: DCV Thermistor Signals

P13-1: DCV Signal to Digital Scroll Thermistor 1

P13-2: DCV Signal from Digital Scroll Thermistor 1

P13-3: DCV Signal to Digital Scroll Thermistor 2

P13-4: DCV Signal from Digital Scroll Thermistor 2

P13-5: DCV Signal to Customer Thermistor

P13-6: DCV Signal from Customer Thermistor

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Emerson Liebert ICOM-DO Service Manual Page 108