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Fan Law 1 Formula
Fan Law 2 Formula
Fan Law 3 Formula
After a Full Reset/Clear All, your calculator will return to the following
settings:
SETTING IMPERIAL
16 Inches
1/16
Standard
Standard
7-1/2 Inches
10 inches
6 Feet 8 Inches
10 Inches
Descending
OC-OC
On
0.000
Float
On-Center Spacing
Fractional Resolution
Area Display
Volume Display
Desired Riser Height
Desired Tread Width
Stairway Headroom
Floor Thickness (Stairs)
Jack Rafters
Irregular Jack Spacing
Exponent
Meter Linear Rounding
Degree Rounding
Mathematical Operations
106 — SHEET METAL
/HVAC PRO CALC
Order of Operations Method
APPENDIX F — DEFAULT SETTINGS
where,
BHP = Brake Horsepower
CFM = Feet
3
per Minute
S
S
where,
SP = Static Pressure
CFM = Feet
3
per Minute
where,
CFM = Feet
3
per Minute
RPM = Revolutions per Minute
APPENDIX E — FAN LAW FORMULAS
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