LG MULTI F Series - Page 346

EQUIPMENT SELECTION PROCEDURE
Table 321: Multi F MAX Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derates.
Main Piping Length (feet) 16.4 32.8 49.2 65.6 82.0 98.4 114.8 131.2 147.6 164.0 180.4
Cooling Capacity (%)
100.0 98.8 97.3 95.8 94.3 92.8 91.3 89.8 88.3 86.8 85.3
Heating Capacity (%)
100.0 99.6 99.2 98.7 98.3 97.8 97.4 96.9 96.5 96.0 95.6
0 32.8 65.6 98.4 131.2 164.0 180.4
Main piping length (ft.)
70.0
75.0
80.0
85.0
90.0
95.0
100.0
Capacity (%)
Heating
capacity
Cooling
capacity
Figure 38: Multi F MAX Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derate Chart.
Table 322: Multi F MAX Branch Distribution Unit to Indoor Unit Refrigerant Line Length Derates.
Piping Length (feet) Cooling Capacity (%) Heating Capacity (%)
7,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 98.0 99.5
49.2 96.0 98.9
9,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 97.5 98.8
49.2 95.0 97.5
12,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 97.0 98.3
49.2 94.0 96.5
15,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 97.2 98.2
49.2 93.0 95.4
18,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 98.3 99.5
49.2 96.5 99.0
24,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 97.8 99.2
49.2 95.5 98.4
36,000 Btu/h Indoor Unit Models
16.4 100.0 100.0
32.8 97.9 98.8
49.2 95.7 97.6
Due to our policy of continuous product innovation, some specications may change without notication.
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346 | APPLICATION GUIDELINES
Multi F and Multi F MAX Indoor Unit Engineering Manual
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