8.4 Cooling Part Load Performance at 100% Combination Ratio
Table 2-8.28: 8HP cooling part load performance
Combination
Outdoor
(%)
temperature
(Capacity
(°C DB)
index)
-5
-2
0
2
4
6
8
10
12
14
16
18
20
100%
21
23
25
27
29
31
33
35
37
39
41
43
45
48
-5
-2
0
2
4
6
8
10
12
14
16
18
20
75%
21
23
25
27
29
31
33
35
37
39
41
43
45
48
Abbreviations:
TC: Total capacity (kW)
PI: Power input (compressor + outdoor fan motor) (kW)
158
DB:20.8,WB:14
DB:23.3,WB:16
TC
PI
TC
PI
kW
kW
kW
kW
17.0
1.86
20.3
2.24
17.0
1.88
20.3
2.27
17.0
1.90
20.3
2.29
17.0
1.94
20.3
2.33
17.0
1.96
20.3
2.35
17.0
1.98
20.3
2.40
17.0
2.02
20.3
2.43
17.0
2.05
20.3
2.48
17.0
2.08
20.3
2.53
17.0
2.12
20.3
2.57
17.0
2.16
20.3
2.62
17.0
2.20
20.3
2.67
17.0
2.24
20.3
2.73
17.0
2.26
20.3
2.75
17.0
2.32
20.3
2.93
17.0
2.47
20.3
3.13
17.0
2.64
20.3
3.34
17.0
2.80
20.3
3.56
17.0
2.99
20.3
3.80
17.0
3.17
20.3
4.05
17.0
3.37
20.3
4.31
17.0
3.59
20.3
4.59
17.0
3.81
20.3
4.88
17.0
3.99
20.3
5.05
17.0
4.17
20.3
5.23
17.0
4.40
20.3
5.47
17.0
4.60
20.3
5.66
12.8
1.27
15.3
1.49
12.8
1.28
15.3
1.50
12.8
1.29
15.3
1.52
12.8
1.29
15.3
1.52
12.8
1.31
15.3
1.56
12.8
1.33
15.3
1.59
12.8
1.36
15.3
1.63
12.8
1.38
15.3
1.66
12.8
1.42
15.3
1.68
12.8
1.44
15.3
1.72
12.8
1.46
15.3
1.75
12.8
1.49
15.3
1.78
12.8
1.51
15.3
1.81
12.8
1.53
15.3
1.82
12.8
1.55
15.3
1.86
12.8
1.58
15.3
1.93
12.8
1.68
15.3
2.06
12.8
1.78
15.3
2.19
12.8
1.88
15.3
2.32
12.8
2.00
15.3
2.47
12.8
2.11
15.3
2.62
12.8
2.23
15.3
2.77
12.8
2.37
15.3
2.94
12.8
2.47
15.3
3.04
12.8
2.67
15.3
3.25
12.8
2.73
15.3
3.32
12.8
2.78
15.3
3.34
Indoor temperature(°C DB/WD)
DB:25.8,WB:18
DB:27,WB:19
TC
PI
TC
PI
kW
kW
kW
kW
23.6
2.67
25.2
2.86
23.6
2.70
25.2
2.91
23.6
2.73
25.2
2.95
23.6
2.76
25.2
2.99
23.6
2.80
25.2
3.03
23.6
2.83
25.2
3.08
23.6
2.89
25.2
3.12
23.6
2.93
25.2
3.17
23.6
2.99
25.2
3.23
23.6
3.05
25.2
3.29
23.6
3.11
25.2
3.36
23.6
3.16
25.2
3.42
23.6
3.26
25.2
3.60
23.6
3.38
25.2
3.72
23.6
3.62
25.2
3.99
23.6
3.88
25.2
4.28
23.6
4.14
25.2
4.57
23.6
4.42
25.2
4.88
23.6
4.71
25.2
5.21
23.6
5.03
25.2
5.56
23.6
5.36
25.2
5.93
23.6
5.71
24.7
6.14
23.6
6.08
24.4
6.35
23.6
6.30
24.0
6.39
23.6
6.42
23.6
6.46
23.6
6.53
23.1
6.55
23.6
6.54
22.2
6.63
17.7
1.69
19.0
1.81
17.7
1.70
19.0
1.84
17.7
1.73
19.0
1.88
17.7
1.76
19.0
1.91
17.7
1.80
19.0
1.95
17.7
1.84
19.0
2.01
17.7
1.88
19.0
2.04
17.7
1.93
19.0
2.08
17.7
1.97
19.0
2.12
17.7
2.01
19.0
2.15
17.7
2.04
19.0
2.20
17.7
2.08
19.0
2.24
17.7
2.12
19.0
2.28
17.7
2.14
19.0
2.30
17.7
2.19
19.0
2.38
17.7
2.33
19.0
2.55
17.7
2.48
19.0
2.71
17.7
2.64
19.0
2.89
17.7
2.81
19.0
3.07
17.7
2.99
19.0
3.27
17.7
3.17
19.0
3.48
17.7
3.38
19.0
3.69
17.7
3.58
19.0
3.92
17.7
3.68
19.0
4.05
17.7
3.84
19.0
4.27
17.7
3.92
19.0
4.34
17.7
3.96
19.0
4.42
DB:28.2,WB:20
DB:30.7,WB:22
TC
PI
TC
PI
kW
kW
kW
kW
26.8
3.10
30.1
3.53
26.8
3.14
30.1
3.58
26.8
3.17
30.1
3.64
26.8
3.21
30.1
3.69
26.8
3.25
30.1
3.72
26.8
3.30
30.1
3.78
26.8
3.35
30.1
3.84
26.8
3.41
30.1
3.90
26.8
3.48
30.1
3.97
26.8
3.54
30.1
4.05
26.8
3.61
30.0
4.10
26.8
3.68
29.6
4.24
26.8
3.95
29.2
4.44
26.8
4.08
29.0
4.54
26.8
4.38
28.6
4.75
26.8
4.69
28.2
4.96
26.8
5.02
27.7
5.16
26.7
5.33
27.4
5.38
26.4
5.54
26.9
5.59
25.9
5.75
26.6
5.79
25.5
5.95
26.1
6.01
25.1
6.17
25.7
6.22
24.7
6.38
25.3
6.43
24.5
6.48
24.9
6.58
24.3
6.54
25.0
6.63
24.2
6.66
24.8
6.73
24.1
6.78
23.3
6.80
20.2
1.93
22.7
2.21
20.2
1.96
22.7
2.24
20.2
2.00
22.7
2.29
20.2
2.03
22.7
2.34
20.2
2.08
22.7
2.38
20.2
2.13
22.7
2.42
20.2
2.17
22.7
2.49
20.2
2.23
22.7
2.54
20.2
2.27
22.7
2.58
20.2
2.31
22.7
2.63
20.2
2.36
22.7
2.68
20.2
2.40
22.7
2.73
20.2
2.44
22.7
2.79
20.2
2.47
22.7
2.83
20.2
2.59
22.7
3.03
20.2
2.76
22.7
3.24
20.2
2.95
22.7
3.46
20.2
3.14
22.7
3.69
20.2
3.34
22.7
3.93
20.2
3.56
22.7
4.19
20.2
3.79
22.7
4.46
20.2
4.03
22.7
4.75
20.2
4.28
22.7
5.05
20.2
4.41
22.7
5.26
20.2
4.54
22.7
5.45
20.2
4.77
22.7
5.75
20.2
4.90
22.7
6.02
Table continued on next page ...
DB:32,WB:24
TC
PI
kW
kW
31.9
3.69
31.9
3.71
31.9
3.75
31.9
3.81
31.9
3.85
31.9
3.91
31.9
3.98
31.9
4.04
31.4
4.07
31.0
4.12
30.6
4.16
30.2
4.27
29.8
4.48
29.6
4.58
29.2
4.79
28.8
4.99
28.4
5.21
28.0
5.42
27.5
5.63
27.2
5.85
26.7
6.06
26.3
6.27
25.9
6.50
25.5
6.63
25.1
6.71
24.6
6.79
24.0
6.86
25.2
2.54
25.2
2.57
25.2
2.61
25.2
2.65
25.2
2.71
25.2
2.76
25.2
2.82
25.2
2.85
25.2
2.91
25.2
2.96
25.2
3.02
25.2
3.08
25.2
3.16
25.2
3.27
25.2
3.51
25.2
3.75
25.2
4.01
25.2
4.28
25.2
4.57
25.2
4.87
25.2
5.19
25.2
5.53
25.2
5.89
25.2
6.15
25.2
6.34
25.2
6.59
25.2
6.75
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