Products
I-36
5
5
DVM design process
5-2. DVM design process example (Cooling)
4) Calculate the actual capacity of outdoor units
Ô The actual capacity of outdoor unit can be calculated as follows:
➊
Using capacity tables, get the capacity values according to indoor and outdoor design temperature and actual combination ratio.
❷ Obtain the capacity reduction rate according to max. piping length and level difference.
❸ Get the values for heating operation rates in accordance with the temperature of outdoor units
(only applicable for heating design).
❹ Using outdoor unit performance table, obtain the capacity value according to indoor and outdoor design temperature,
actual combination rates (105%).
- RVXVHT180✴✴ 110% combination capacity : 52.5kW
- RVXVHT180✴✴ 100% combination capacity : 50.4kW
[capacity 110% - capacity 100%]
=
10
Capacity 105%
[capacity 100% +
x 5] ➟
[52.5-50.4]
10
x 5] = 51.5 kW[50.4 +
❈ Therefore, RVXVHT180✴✴ 105% combination performance is 51.5 kW.
◆ Compact combinations
18HP (Heat Pump / Heat Recovery)
9.75
9.98
10.23
10.49
10.77
11.07
11.24
11.61
12.00
12.42
12.87
13.35
13.87
14.43
14.81
15.13
15.29
14.98
Model
Outdoor
temperature (
º
C, DB)
Indoor temperature (ºC, WB)
63.02
62.80
62.57
62.35
62.12
61.90
61.90
61.90
61.90
61.90
61.90
61.90
61.90
61.90
60.96
59.65
56.27
52.52
9.45
9.69
9.96
10.23
10.53
10.84
11.02
11.39
11.79
12.22
12.68
13.17
13.71
14.29
14.77
15.25
15.63
15.63
58.82
58.69
58.55
58.42
58.28
58.15
58.15
58.15
58.15
58.15
58.15
58.15
58.15
58.15
57.58
56.80
54.17
51.47
9.12
9.38
9.65
9.95
10.26
10.59
10.77
11.15
11.55
11.99
12.46
12.96
13.52
14.12
14.72
15.36
16.00
16.35
54.62
54.58
54.53
54.49
54.44
54.40
54.40
54.40
54.40
54.40
54.40
54.40
54.40
54.40
54.21
53.95
52.07
50.42
8.98
9.25
9.53
9.83
10.15
10.50
10.68
11.06
11.47
11.91
12.39
12.90
13.47
14.08
14.75
15.49
16.26
16.81
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
52.52
51.02
49.89
8.78
9.05
9.33
9.63
9.95
10.30
10.48
10.86
11.27
11.71
12.18
12.70
13.26
13.88
14.56
15.30
16.57
16.70
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
49.26
46.89
7.94
8.19
8.45
8.73
9.04
9.36
9.53
9.89
10.28
10.70
11.15
11.65
12.19
12.79
13.45
14.17
15.43
16.39
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
42.73
6.88
7.11
7.34
7.60
7.87
8.16
8.32
8.65
9.00
9.39
9.81
10.27
10.77
11.33
11.95
12.64
13.84
14.77
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
36.20
10
12
14
16
18
20
21
23
25
27
29
31
33
35
37
39
42
44
110
24 (ºC, WB)
TC PI
kW kW
22 (ºC, WB)
TC PI
kW kW
20 (ºC, WB)
TC PI
kW kW
19 (ºC, WB)
TC PI
kW kW
18 (ºC, WB)
TC PI
kW kW
16 (ºC, WB)
TC PI
kW kW
14 (ºC, WB)
TC PI
kW kW
TC : Total Capacity, PI : Power Input
9.38
9.60
9.84
10.09
10.36
10.64
10.81
11.16
11.54
11.94
12.37
12.83
13.33
13.88
14.24
14.55
14.70
14.40
Model
Outdoor
temperature (
º
C, DB)
Indoor temperature (ºC, WB)
60.60
60.38
60.17
59.95
59.73
59.52
59.52
59.52
59.52
59.52
59.52
59.52
59.52
59.52
58.62
57.35
54.11
50.50
9.08
9.32
9.57
9.84
10.12
10.42
10.59
10.95
11.34
11.75
12.19
12.66
13.18
13.74
14.21
14.66
15.03
15.02
56.56
56.43
56.30
56.17
56.04
55.91
55.91
55.91
55.91
55.91
55.91
55.91
55.91
55.91
55.37
54.61
52.09
49.49
8.77
9.02
9.28
9.56
9.86
10.18
10.36
10.72
11.11
11.53
11.98
12.47
13.00
13.57
14.15
14.77
15.38
15.72
52.52
52.48
52.43
52.39
52.35
52.30
52.30
52.30
52.30
52.30
52.30
52.30
52.30
52.30
52.12
51.87
50.07
48.48
8.62
8.87
9.15
9.44
9.75
10.08
10.25
10.62
11.01
11.43
11.89
12.39
12.92
13.54
14.15
14.86
15.64
16.17
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
50.40
49.06
47.98
8.45
8.70
8.97
9.26
9.57
9.90
10.07
10.44
10.83
11.26
11.72
12.21
12.75
13.35
14.00
14.71
15.93
16.06
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
47.36
45.09
7.63
7.87
8.13
8.40
8.69
9.00
9.16
9.51
9.88
10.29
10.72
11.20
11.72
12.30
12.93
13.63
14.83
15.76
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
41.09
6.62
6.83
7.06
7.31
7.57
7.85
8.00
8.32
8.66
9.03
9.43
9.87
10.36
10.90
11.49
12.15
13.30
14.20
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
34.81
10
12
14
16
18
20
21
23
25
27
29
31
33
35
37
39
42
44
100
24 (ºC, WB)
TC PI
kW kW
22 (ºC, WB)
TC PI
kW kW
20 (ºC, WB)
TC PI
kW kW
18 (ºC, WB)
TC PI
kW kW
16 (ºC, WB)
TC PI
kW kW
14 (ºC, WB)
TC PI
kW kW
TC : Total Capacity, PI : Power Input
19 (ºC, WB)
TC PI
kW kW
33
33
19 (ºC, WB)
1. products(01~41) 3/14/08 22:01 Page 36