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48 — S
HEET METAL/HVAC PRO CALC
OFFSET EXAMPLES
Offset, Basic Example
If an offset is 5 Feet, the actual Length 10 Feet, and the Height of
the “end A” equal to 7 Feet, calculate the Centerline Radius,
Wrapper Length, Heel Radius, Throat Radius, and Theta.
KEYSTROKE DISPLAY
1. Enter actual Length as “x”:
o o 0.
1 0 f R X 10 FEET 0 INCH
2. Enter offset Length as “y”:
5 f r Y 5 FEET 0 INCH
3. Enter Height of “end A” as “a”:
7 f Ç 4 A 7 FEET 0 INCH
4. Calculate Centerline Radius, Wrapper Length, Heel Radius,
Throat Radius and Theta:
Ç ( RAD 6 FEET 3 INCH
( WL 11 FEET 7-1/8 INCH
( HEEL 9 FEET 9 INCH
( THRT 2 FEET 9 INCH
( THET 26.56505°
Note: If the calculated Throat Radius is less than zero, an error will be displayed (i.e.
“THRT Error”) when attempting to calculate the Offset.
STORED
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