Info

980F [36.60C]

1050F [40.60C]

Barometric Pressure - 29.92 in. of Hg [101 kPa]

Table 33-1 Standard Rating Conditions from ARI Standard 550/590-1988. Source: ARI

Table 33-1 Standard Rating Conditions from ARI Standard 550/590-1988. Source: ARI

These criteria define a load level, a percentage of time at each load level, and the available condenser water (or air) temperature at each loading to provide a single annualized performance figure. IPLV references ARI Standard Rating Conditions and NPLV references ARI Selected Application Rating Conditions. The time weighting values used for IPLV and NPLV are:

Where:

A = COP at 100% B = COP at 75% C = COP at 50% D = COP at 25%

When performance is expressed in kW/ton or hp/ton, the IPLV or NPLV can be expressed as:

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