3.10.2 Air flow rate confirmation
Example. 1
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Application Model : A5UW40GFA0 Airflow rate 90 m
3
/min
Air guide duct
[Total opening rate]
390mm
165mm
620mm
165mm
1170 mm
1145 mm
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Louver total dimension (excluding frame) (A) = 1.2 m x 1.9 m = 2.28 m
2
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Louver shielding dimension by product (B) = 0.95 m x 1.17 m = 1.11 m
2
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Suction able louver dimension (A-B) = 1.17 m
2
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Equivalent suction dimension (Opening rate 80%) = 1.17 m
2
x 0.8 = 0.94 m
2
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Equivalent suction air volume = 0.94 m
2
x 2.5 m/s x 60s = 141 m
3
/min
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Required air volume / equivalent volume = 141 m
3
/min / 90 m
3
/min(product airflow rate) = 157 %
·
OK
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Case : velocity of discharging air: 5m/s,
velocity of suction air: 2.5m/s
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Openness rate = 80% or more
h
Openness rate =
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Air guide of discharging air part should be equipped.
Effective face area(Af)
Total face area(A)
Part 3 Design and installation
3. Installation of outdoor unit
Heat pump
60Hz/R410A
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60