Carrier 23XL - Page 100

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AUX — Auxiliary BR — Bridge Rectifier CB — Circuit Breaker COMM — Communication COND — Condenser CPU — Central Processing Unit CVC — Chiller Visual Controller CT — Current Transformer EVAP — Evaporator FU — Fuse G—Ground L—Main Supply Power LL — Control Power Supply M—Contactor O/L — Overload Reset S—Contactor SCR — Silicone Controller Rectifier ST — Shunt Trip TB — Ter minal B lock
Wire Node Symbol may have terminal block Benshaw supplied terminal block Terminal Strip Power Connection PC Board Terminals Twisted Pair Twisted Shielded Pair Shield Wire Field Wiring
NOTES:
LED status with power applied and prior to run command. “ON”
“OFF”
Transformer T1 primary fuses FU1/FU2 value dependent on system voltage and model, per Chart 1. Transformer connections per transformer nameplate connec- tion diagram. MOVs are used on power stack assemblies for system voltages of 200 through 460 vac (as shown). Resistor/capacitor networks (DVDTs) are used on power stack assemblies in place of MOVs for a system voltage of 575 vac (not shown). K3 relay shown in deenergized state. K3 contact will close when power is applied. K3 contact will open on stop command or system faul
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LEGEND
Fig. 49 — Benshaw, Inc. Solid-State Unit Mounted Starter Wiring Schematic (Low Voltage) (cont)