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Unit selection base on cooling load
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1. Introduction
Refrigerant
Power supply
Model
Capacity (kW)
YDS-100WC15A
10
YDS-140WC35A
14
1 Ph-220-240V-50Hz
YDS-100WC35A
10
YDS-140WC35A
14
R-410A
3 Ph-380-415V-50Hz
YDS-280WC35A
28
2. Unit selection (Based on Cooling Load)
2.1) Indoor unit selection
1. After calculated the heat load of rooms, according to the local weather parameter and
area, cubage, structure of rooms, selecting the nearest load capacity indoor units with given
load.
2. Selecting the proper indoor units should include the type of indoor units (Such as the
four-way cassette, duct and so on).
3. Pay attention to the requirements of customers and local corresponding design
standards.
CAUTION: The described capacity may be different from each indoor unit according to
combination. So the real capacity should be calculated with outdoor unit capacity table.
2.2) Outdoor unit selection
The allowable combination is described on the indoor combination total capacity index
table.
For the standard of the indoor unit and outdoor unit combination, select the nearest
value that the total indoor unit capacity index is less than 130% outdoor unit capacity index.
Indoor unit combination total capacity index.
Outdoor Units
Indoor unit combination
Outdoor Unit
130%
100%
90%
80%
70%
60%
50%
YDS-100WC15A
13
10(ISO)
9
8
7
6
5
YDS-140WA15A
18.2
14(ISO)
12.6
11.2
9.8
8.4
7
YDS-100WC35A
13
10(ISO)
9
8
7
6
5
YDS-140WC15A
18.2
14(ISO)
12.6
11.2
9.8
8.4
7
YDS-280WC35A
36.4
28(ISO)
25.2
22.4
19.6
16.8
14
Indoor units
Unit size
22
28
36
45
56
71
80
90
112
140 280
Capacity index (kW)
2.2
2.8
3.6
4.5
5.6
7.1
8.0
9.0
11.2 14.0 28.0
Summary of Contents for R-410A
Page 103: ...Wall mount 102 Part 4 2 Wall Mounted...
Page 113: ...Wall mount 112 4 Dimensions 4 1 YDS 22 36EC 4 2 YDS 45 56EC...
Page 115: ...Wall mount 114 5 Piping Diagrams 5 1 YDS 22 56EC 5 2 YDS 22 56HC...
Page 116: ...Wall mount 115 6 Wiring diagrams 6 1 YDS 22 36EC 6 2 YDS 45 56EC...
Page 117: ...Wall mount 116 6 3 YDS 22 56HC...
Page 118: ...Wall mount 117 7 Sound level 7 1 Test condition 7 2 Noise spectrums YDS 22 36EC HC...
Page 119: ...Wall mount 118 YDS 45 56EC HC...
Page 120: ...Wall mount 119 8 Velocity temperature distribution Discharge angle 70...