Harman Stove Company Accentra Service Training page 46

Pellet Feed Motor
Most of the stoves use a 4 r.p.m. gear motor
which installs directly into the end of the
auger shaft and turns it in a counter-clockwise
direction. The PF-100 uses a 6 r.p.m. motor.
The Advance and Accentra models use a clockwise directional
feed motor. This is identified by either two white leads, on older
units or black and red leads on the newer ones. It is also a 4 r.p.m.
Motor, just turning the opposite direction for the chain drive.
Harman Pellet Service Training 46