The following sketches indicate the maximum permitted out-of-level condition allowed by the Norcold refrigerator. Note that for this Models QD that the refrigerator is mounted in the vehicle facing towards the front and back of the vehicle, so that Norcold's terminology of "Front-to-Back" (FTB) matches the same "Front-to-Back" 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 "Side-to-Side" refrigerator allowance of the QD is about 4-1/4 inches

Therefore the "Front-to-Back" refrigerator allowance of the QD is about 16 inches

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