950-0289revB - 36 - July 22, 2022
TERMINAL READINGS ON INDOOR UNIT
The reading on terminals 1 and 3 of indoor unit are the same as the outdoor unit
which shows the power supply 208V
– 230V.
The terminal 2 is for signal, the reading between 1 and 2 is fluctuating.
OUTDOOR ELECTRICAL SCHEMATICS
Wiring Diagram for MZ18H424ZMO (Dual Zone)