Garner HD-2 Series Operation And Installation Manual page 7

Lift the top cover as
shown being careful as
a ground wire is still
4)
internally attached.
Carefully place the cover
next to the HD-2 as
shown..
To change the jumper
position, pull the brown
jumper wire from the
front side of the fuse
block and move it to the
corresponding terminal
that matches the power
5)
mains outlet voltage.
Notice, this photo shows
the correct jumper
setting for 120 VAC.
HD-2 Operation and Installation Manual Page 5