The following sketches indicate the maximum permitted out-of-level condition allowed by the Norcold refrigerator. Note that for these Models HD and FD that the refrigerator is mounted in the vehicle facing from side to side, so that Norcold's terminology of "Front-to-Back" (FTB) is actually Side-to-Side in reference to the vehicle.
Given data:
► Side-to-side allowance of 3 degrees
► Front-to-Back allowance of 6 degrees
► Vehicle track is about 82"
► Wheelbase is about 152"
► Sine of 3 degrees = 0.0523
► Sine of 6 degrees = 0.1045
On these sketches, the vertical line with the arrow pointing to it indicates the maximum measurement allowed in inches. The sketches are NOT TO SCALE and the angles are exaggerated for clarity.
Therefore the
"Front-to-Back" refrigerator allowance of the HD or FD is about 8-1/2 inches
Therefore the
"Side-to-Side" refrigerator allowance of the HD or FD is about 8 inches