There are several methods you can use to change the route destination.
Paint Code
Code
Color
USA models
Canada models
NH-578
Taffeta White
0
0
...
HVAC
...
Inspection
Install the flange nut on the damper shaft end, and set the socket wrench
and T-handle on the nut.
Compress the damper assembly by hand, and check for smooth operation
through ...