Panasonic U-72MF2U9 Technical Data Manual page 31

1. Model Selecting and Capacity Calculator
1. Model Selection and Capacity Calculator
Graph of indoor unit capacity characteristics (2 – (2))
Indoor unit cooling capacity characteristics
140
130
120
110
100
90
80
70
60
57 59 61 63 65
Indoor air intake temp. (°F WB)
Graph of capacity change characteristics resulting from tubing length and elevation difference (1 / 2 – (3))
(Performance correction coefficients by elevation difference of refrigerant tube length [performance change rate ÷ 100] is
calculated by the following line map.)
<Cooling>
Base capacity
change rate
92
164
94
131
96
98
66 98
33
100
0
-33
-66
-98
-131
0 33 66 98 131 164 197 230 262 295 328 361 394 427 459 492 525 558 591 623 656 689
<Heating>
Base capacity
change rate
164
95
96
131
97
98
98
66
99
100
33
%
0
-33
-66
-98
-131
0 33 66 98 131 164 197 230 262 295 328 361 394 427 459 492 525 558 591 623 656 689
The positive side for the elevation difference indicates that the outdoor unit is installed at a higher position than the indoor units.
The negative side indicates the opposite.
indicates the rating point.
67 69 71 73 75 77
90 88 86 84 82 80 78
Equivalent length(ft)
94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
Equivalent length(ft)
Indoor unit heating capacity characteristics
140
130
120
110
100
90
80
70
60
61
59 62 65 68
Indoor air intake temp. (°F DB)
76 74 72 70 68 66 64
2 - 15
Design of 2WAY VRF SYSTEM
Design of 3WAY VRF SYSTEM
indicates the rating point.
71 74 77 80 83 86
1
2
3
4
5
6
7
8
9