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REFRIGERANT PIPING LENGTH[ (LIMITATIONS <br />Maximum Line Lengths: <br />The maximum allowable total equivalent length for heat pumps can vary depending on the vertical separation. See the tables below for <br />allowable lengths depending on whether the outdoor unit is on the same level, above or below the outdoor unit. <br />Maximum Line Lengths for Heat Pump Applications <br />MAXIMUM ACTUAL LENGTH <br />MAXIMUM EQUIVALENT LENGTHt <br />MAXIMUM VERTICAL SEPARA- <br />ft (m) <br />ft (m) <br />TION ft (m) <br />Units on equal level <br />100 (30.5) <br />100 (30.5) <br />N/A <br />Outdoor unit ABOVE <br />100 (30.5) <br />100 (30.5) <br />100 (30.5) <br />indoor unit <br />Outdoor unit BELOW <br />indoor unit <br />See Table 'Maximum Total Equivalent Length: Outdoor Unit BELOW Indoor Unit' <br />t Total equivalent length accounts for losses due to elbows or fitting. Seethe Long Line Guideline for details. <br />Maximum Total Equivalent Lengtht - Outdoor Unit BELOW Indoor Unit <br />Liquid Line <br />HP with PuronG Refrigerant - Maximum Total Equivalent Lengtht <br />Vertical Separation ft (m) Outdoor unit BELOW Indoor unit; <br />Size <br />Diameter <br />w/TXV <br />0-20 <br />(0-6.1) <br />21-30 <br />(6.4-9.1) <br />31-40 <br />(9.4-12.2) <br />41-50 <br />(12.5-15.2) <br />51-60 <br />(15.5-18.3) <br />61-70 <br />(18.6-21.3) <br />71-80 <br />(21.6-24.4) <br />1-Ton <br />3/8 <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />2-Ton <br />3/8 <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />3-Ton <br />318 <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />100* <br />4-Ton <br />1 3/8 <br />1 100* <br />100* <br />100* <br />100* <br />100 <br />100 <br />- - <br />5-Ton <br />1 3/8 <br />1 100* <br />100* <br />100* <br />100* <br />100 <br />100 <br />-- <br />am <br />* Maximum actual length not to exceed 100 ft (30.5 m) <br />t Total equivalent length accounts for losses due to elbows or fitting. <br />-- = outside acceptable range <br />LONG LINE APPLICATIONS <br />Unit is approved for up to 100 ft (30.5 m) equivalent length and vertical separations shown above with no additional accessories. <br />Longer line set applications are not permitted. <br />COOLING CAPACITY LOSS TABLE <br />Nominal <br />Size <br />(Btuh) <br />Line OD (in.) <br />2889NVO Cooling Capacity Loss (°/6) <br />Total Equivalent Line Length (ft) <br />25 <br />50 <br />75 <br />80 <br />100 <br />5/8 <br />0.5 <br />1.2 <br />1.8 <br />1.9 <br />2.4 <br />13 <br />3/4 <br />0.1 <br />0.4 <br />0.6 <br />0.7 <br />0.8 <br />5/8 <br />0.5 <br />1.2 <br />1.8 <br />1.9 <br />2.4 <br />24B <br />3/4 <br />0.1 <br />0.4 <br />0.6 <br />0.7 <br />0.8 <br />5/8 <br />0.5 <br />1.2 <br />1.8 <br />1.9 <br />2.4 <br />25 <br />3/4 <br />0.1 <br />0.4 <br />0.6 <br />0.7 <br />0.8 <br />7/8 <br />0.0 <br />0.1 <br />0.3 <br />0.3 <br />0.4 <br />5/8 <br />1.1 <br />2.4 <br />3.7 <br />4.0 <br />5.0 <br />36 <br />314 <br />0.3 <br />0.8 <br />1.3 <br />1.4 <br />1.8 <br />7/8 <br />0.0 <br />0.3 <br />0.5 <br />0.6 <br />0.8 <br />3/4 <br />0.7 <br />1.6 <br />2.4 <br />2.6 <br />3.2 <br />37 <br />48 <br />7/8 <br />0.3 <br />0.7 <br />1.1 <br />1.2 <br />1.6 <br />1 1/8 <br />0.0 <br />0.1 <br />0.2 <br />0.3 <br />0.4 <br />3/4 <br />1.0 <br />12.3 <br />3.5 <br />3.8 <br />4.8 <br />60 <br />7/8 <br />0.4 <br />1.0 <br />1 1.7 <br />1.8 <br />2.3 <br />1 118 <br />0.0 <br />0.1 <br />1 0.3 <br />0.4 <br />0.5 <br />Rating Line Size in BOLD <br />