Carrier 19XR - Page 115

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1A
Fig. 56 — Typical Autotransformer Starter Wiring Schematic (Medium Voltage)
LEGEND
AUX — Auxiliary C — Contactor CB — Circuit Breaker COMM — Communication COND — Condenser CPT — Control Power
Transformer
CR — Control Relay CT — Current Transformer DISCH — Discharge DS — Disconnect Switch EVAP — Evaporator FU — Fuse GFCT — Ground Fault Current
Transformer
HPR — High Pressure Relay ISM — Integrated Starter
Module
L — Main Power Supply LL — Control Power Supply MTR — Motor PRESS — Pressure PT — Power Transformer ST — Shunt Trip STAT — Status TB — Te r m i n a l B l o c k TC — Transition Clear TRANS — Transition VFD — Variable Frequency
Drive
VL — Wire Label
Starter Vendor Power Wir ing Starter Vendor Control Wiring Field Installed Power Wir ing (supplied by others) Field Installed Control Wiring (supplied by others) Option — Starter Vendor Wiring Twisted Pair Wiring by Starter Vendor Customer Terminal Connection