HVAC Design Tools

HVAC design tools include such popular items as the Trane Ductulator™, psychrometric charts, and load estimating forms.

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  • Ductulator - Hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. Includes scales for friction loss per unit length, air volume, air velocity, round duct diameter, and rectangular duct diameters. One side uses English units, the other side uses Metric units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications. $10
  • Psychrometric Chart - std. altitude, 8.5" x 11" pad of 25. $5
  • Psychrometric Chart - std. altitude, 11" x 17" pad of 25. $7.50
  • Psychrometric Chart - std. altitude, 11" x 17" laminated chart. $15
  • Psychrometric Chart - high altitude (24 in. Hg), 8.5" x 11" pad of 25. $5
  • Psychrometric Chart - std. altitude, 8.5" x 11" pad of 25, SI units. $7.50
  • Psychrometric Chart - std. altitude, 11" x 17" pad of 25, SI units. $7.50
  • Psychrometric Chart - std. altitude, 11" x 17" laminated chart, SI units. $15
  • Equilibrium Chart for Lithium Bromide Solutions - 11" x 17" laminated chart. $15
  • Cooling & Heating Load Estimating Sheets - 11" x 17" pad of 25 sheets used for manually calculating space cooling and heating loads. Uses ASHRAE's CLTD and CLF methods, to be used in conjunction with the ASHRAE handbooks. $5