Carrier AquaEdge 19DV series Start-Up, Operation And Maintenance Instructions Manual page 63

Two-stage back-to-back centrifugal liquid chillers with pic5 controls and hfo r-1233zd(e) 50/60 hz

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Table of Contents

— Refrigerant Pump Contactor

— Liquid Bypass Valve Contactor (Option)

— Economizer Vent Valve Contactor (Option)

— Free Cooling Valve Contactor (Option)

— Control Power Circuit Breaker

1CB

— Control Power Circuit Breaker

2CB

— L1, L2, L3 – Main 3-Phase Power

1TB

— LL2, LL1 – 1-Phase Control Power

1TB

— Control Power Wiring Terminal Block

2TB

— 24 VAC Control Power Wiring Terminal Block

3TB

— VFD Communication and Interlock

4TB

— Customer Field Connection Terminal Block

5TB

ETHERNET SWITCH — Remote Connectivity Ethernet Connection

— High Float Level Switch Relay

HFR

— High Pressure Switch Relay

HPR

Fig. 52 — Chiller Control Schematic

Table of Contents

Troubleshooting