Design Technical Manual

Table Of Contents
Select outdoor units to match the total capacity of indoor units preliminarily
(Conrm the rated capacity ratio of indoor and outdoor units, the number of
connectable indoor units within limit)
Conrm if the capacity of outdoor units selected on previous process is listed
in combination.
System capacity = Compensated capacity of outdoor units
END
Calculate actual capacity of each indoor unit by dividing
system capacity proportionally (Refer to 3-2)
System capacity = Total capacity of
indoor units at design temperature
Change to a larger
capacity of outdoor units
Actual capacity of indoor unit =
Capacity of indoor unit at design
temperature
A
Total capacity of indoor units at design
temperature ≥ Compensated capacity of
outdoor units
Actual capacity of indoor unit ≥ Heat load
Calculate the compensated capacity of outdoor units (Refer to 3-2)
Find outdoor unit capacity at design temperature
Calculate the compensated capacity
Compensation coefcient of pipe length (COOLING)
Compensation coefcient of pipe length and frosting/defrosting (HEATING)
YES
YES
NO
NO
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MODEL
SELECTION
MODEL
SELECTION