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Design of Mini VRF SYSTEM
1. Model Selecting and Capacity Calculator
Surplus capacity correction coefficient (%)
Note :
This capacity graph is used for the calculation of the tubing length correction.
Therefore, this is different from the outdoor unit’s capacity graph.
Therefore, this is different from the outdoor unit’s capacity graph.
Outdoor air intake temp.( °C WB)
Outdoor air intake temp.( °C DB)
Surplus capacity correction coefficient (%)
Surplus capacity correction coefficient (%)
5. Graph of capacity correction coefficients
Outdoor unit heating capacity correction coefficient during frosting/defrosting (1 – (4))
To calculate the heating capacity with consideration for frosting/defrosting operation, multiply the heating capacity
found from the capacity graph by the correction coefficient from the table above.
*
Outdoor intake
air temp.
air temp.
Correction
coefficient
coefficient
–1
0
1
2
3
4
5
6
0.89 0.87 0.87 0.87 0.88 0.89 0.91 0.92 0.95
1.0
0.91
0.94
0.96
0.97 0.97 0.97
(°CWB, RH85%)
–20
–15
–10
–8
–6
–2
–4
–5
-20 -15 -10
-5
0
5
10
15
90
95
100
110
105
120
115
125
90
95
100
105
110
115
120
125
g
n
i
t
a
e
h
g
n
il
o
o
c
-5
0
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TD831155-04_MINI VRF.indb 10
TD831155-04_MINI VRF.indb 10
2014/05/09 15:29:02
2014/05/09 15:29:02
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