Model Selection And Capacity Calculation; Selection Procedure Of Indoor Unit And Outdoor Unit - Fujitsu AUYG07LVLA Design & Technical Manual

3.

MODEL SELECTION AND CAPACITY CALCULATION

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 larger
than cooling and heating load.
 Calculate heat load of each room
 Tentative selection of indoor units
 Calculate the total cooling capacity or heating capacity of indoor units
 Calculate the Maximum cooling capacity or heating capacity of outdoor unit
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)
Actual cooling capacity or heating capacity of system
(Smaller one of  and  )
Calculate the cooling capacity or heating capacity of each indoor unit
The cooling capacity or heating capacity of each indoor unit
= Rated capacity of each indoor unit
x
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.
System capacity / The sum of rated capacity of indoor units
 ?)
- (02 - 04) - 2. MODEL SELECTION