Kaysun Amazon V, Инженерный справочник

Страница: 14 / 200

Amazon V
Part 1 - Gener
al In
forma
tion
13
Table 1-6.5: Extract from Table 1-5.2 Combinations of Indoor and outdoor units
Outdoor unit capacity Sum of capacity indexes of
connected indoor units (standard
indoor units only)
Maximum number of
connected indoor units kW HP
Capacity
index
50.0 18 500 250 to 750 29
56.0 20 560 280 to 840 33
59.0 22 590 295 to 885 36
67.0 24 670 335 to 1005 39
73.0 26 730 365 to 1095 43
75.5 28 755 392.5 to 1132.5 46
85.0 30 850 425 to 1275 50
85.0 32 850 425 to 1275 53
92.5 34 925 462.5 to 1387.5 56
99.0 36 990 495 to 1485 59
104.0 38 1040 520 to 1560 63
109.0 40 1090 545 to 1635
64
115.0 42 1150 575 to 1725
118.0 44 1180 590 to 1770
126.0 46 1260 630 to 1890
132.0 48 1320 660 to 1980
134.5 50 1345 672.5 to 2017.5
146.0 52 1460 730 to 2190
▪ The number of connected indoor units is 8 and the maximum number of connected indoor units on the 20HP outdoor
unit is 33, so the number of connected indoor units is within the limitation.
▪ Calculate the corrected capacity of the outdoor units:
a) The sum of the indoor unit CIs is706 andthe CI of the 20HP outdoor unit (K2F-560 DN5S)is 560, so the combination
ratio is 706 / 560 = 126%.
b) Using the outdoor units’cooling capacity table, interpolate to obtain the capacity (“B”) corrected for outdoor air
temperature, indoorair temperature, and combination ratio.Refer to Tables 1-6.6 and 1-6.7.
Table 1-6.6: Extract from Table 2-8.7 K2F-560 DN5S cooling
capacity
Table 1-6.7: Cooling capacity calculated by interpolation
CR
Outdoor
air temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
CR
Outdoor
air temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
25.8 / 18.0 25.8 / 18.0
TC PI TC PI
kW kW kW kW
130%
31 60.0 14.25
130% 33 59.2 14.77 33 59.2 14.77
35 58.2 15.32
B = 58.8
1
120%
31 59.0 14.16
120% 33 58.2 14.69 33 58.2 14.69
35 57.2 15.22
Notes:
1. 58.2 + (59.2 – 58.2) × (126 – 120) / (130 – 120) = 58.8.