Use Excel programs for quick field calculataions.
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Sheave Calculator
Motor and Fan sheaves
Includes sheave catalog data
Traverse Calculator
Round or Rectangular
Gives Pitot Tube Markings
Calculates Areas and CFM
Kitchen Hood
Gives Ak for Baffle and Extractor Filters
Makup Readings
Setting Outside Air
Mixed Air Temp Method for Setting O/A
Static Pressure Method for Setting O/A
Setting O/A on RTUs
RVA Balancing
Field Derive Ak
Balancing using RVA
Basic Balancing Formulas
Fan Laws
BTU Calcs
HP Calcs
Kw Calcs
Air Changes per Hour
Pump Laws
Hydronic Formulas
Circuit Setter Wheels and Charts on the PDA
Taco
B&G
Armstrong
Nibco
HCI
Nexus
Victaulic / TA
Watts
FDI