Goodman MBE Series Installation Instructions Manual page 11

WARNING
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
Figure 15
Figure 16
11
REMOVE
PRODUCTION
WIRE Y1-O
REMOVE
PRODUCTION
WIRE Y1-O