Technical Guide

505428-YTG-N-0712
Johnson Controls Unitary Products 123
Typical Field Wiring Diagram - NC300 Evaporator Unit with YC300 Condenser Unit
NOTE: On non NC/ND Evaporator models, isolation relays
must be installed to avoid overloading on 75 VA
transformers on the condensing unit.
NC300 Liquid Line Solenoid Wiring