2. MODEL SELECTION
MODEL SELECTION AND CAPACITY CALCULATION3.
SELECTION PROCEDURE OF INDOOR UNIT AND 3-1.
OUTDOOR UNIT
Please select indoor units and outdoor units and make the capacity of each indoor unit larger
than cooling and heating load.
Calculate heat load of each room
Tentative selection of indoor units
Actual cooling capacity or heating capacity of system
(Smaller one of
and
)
Check the heat load and capacity of indoor unit of each room
(Does your calculation satisfy
?)
Note: Outdoor unit is added and calculated again to lower the total
rated capacity of indoor unit in case of capacity shortage.
Calculate the total cooling capacity or heating capacity of indoor units
Calculate the cooling capacity or heating capacity of each indoor unit
Calculate the Maximum cooling capacity or heating capacity of outdoor unit
The cooling capacity or heating capacity of each indoor unit
= Rated capacity of each indoor unit
x
System capacity / The sum of rated capacity of indoor units
The maximum cooling capacity or heating capacity of outdoor unit
= Capacity of outdoor unit calculated from total of indoor unit rated capacity with capacity table
x Capacity change rate by temperature conditions (Calculate by the value of indoor units
connecting capacity in 100%)
x Capacity change rate by refrigerant pipe length
x Capacity change rate by frosting (Only heating operation)
- (02 - 04) -
MODEL
SELECTION
MODEL
SELECTION
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