Technical Data Manual

Design of 3WAY VRF SYSTEM
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1. Model Selecting and Capacity Calculator
1-9. Capacity Correction Graph According to Temperature Condition
Capacity characteristics
(The corrected capacity for specifi c temperature conditions can be found from the graphs below.)
Indoor air intake temp. (WB) = 71 FIndoor air intake temp. (WB) = 71 F
WB = 67°F
WB = 61°F
WB = 67°F
Indoor air intake temp. (WB) = 72°F
Indoor air intake temp. (WB) = 72°F
WB = 61°F
Capacity ratio (%)
Input ratio (%)
80
90
100
120
130
80
70
60
50
40
30
20
10
14 23 32 41 50 59 68 77 86 95
104 113
90
100
120
6-Ton 8-Ton
< Cooling > < Heating >
130
120
100
90
80
70
60
50
40
130
120
100
90
80
70
60
50
- 4 5 142332415059
61
70
79
61
70
79
Indoor air intake temp. (°F DB)
- 4 5 142332415059
130
120
100
90
80
70
60
50
40
130
120
100
90
80
70
60
50
61
70
79
61
70
79
Indoor air intake temp. (°F DB)
Capacity ratio (%)
Input ratio (%)
Capacity ratio (%)
Input ratio (%)
110 110
110110
110
110
Heating capacity correction coeffi cients for frost/defrost operation
Outdoor intake air
temp.
(°F WB RH85%)
–4 5 1417212324283032333537394142
Correction coefficient 0.97 0.97 0.97 0.96 0.94 0.91 0.89 0.87 0.87 0.87 0.88 0.89 0.91 0.92 0.95 1.0
* The heating capacity when frost/defrost operation is considered is calculated by multiplying the heating capacity found
from the capacity graph by the correction coeffi cient from the table above.
TD831158-02_3WAY_VRF_SYS.indb 15TD831158-02_3WAY_VRF_SYS.indb 15 2013/06/18 11:46:352013/06/18 11:46:35