Transcription of SUCTION & LIQUID LINE SIZING CHARTS USING LINE SIZING …
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MI - 126-Apr-06 SUCTION & LIQUID LINE SIZINGTYLER SPEC GUIDESUCTION & LIQUID LINE SIZING CHARTSUSING LINE SIZING CHARTSB asisThese line SIZING CHARTS are based on a SUCTION pressure drop equivalent to a 2 F change in saturationpressure and LIQUID line pressure drop of 5 psi. For R-404A Low Temperature 1 psi; for R-404A and R-22 Medium Temperature 2 psi is used. This is the maximum allowable pressure drop for the entirepiping run regardless if it is 50' or 250'. The advantage of the graphic representation of this information is to show just how close to full capacity a particular selection is.
Liquid Line Sizing Use the liquid line size chart on page MI-10 to determine the appropriate size in the same manner as for suction lines. Exception - In the case of gas defrost, follow the special instructions on page MI-6 making and sizing a liquid line manifold at the case.
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