Fujitsu AIRSTAGE V-II - Page 38

MODEL SELECTION AND CAPACITY CALCULATION2-3.
2-3-1. SELECTION PROCEDURE OF INDOOR UNIT AND
OUTDOOR UNIT
Please select indoor units and outdoor units and make the capacity of each indoor unit be
larger than cooling and heating load.
Conrm the design indoor and outdoor temperature condition
Calculate heat load of each room
Select indoor unit to match the heat load for each room preliminarily
Change to a larger
capacity of indoor unit
Estimated capacity of indoor unit
≥ Heat load
Calculate the estimated capacity of each indoor units (Refer to 2-3-2)
Find indoor unit capacity at design temperature ●
Calculate the estimated capacity ●
Compensation coefcient of pipe length (COOLING)
Compensation coefcient of pipe length and frosting/defrosting (HEATING)
Calculate the total capacity of indoor units at
the rated condition ●
the design temperature condition ●
A

YES
NO
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MODEL SELECTION MODEL SELECTION