Correct Answer - Option 2 : Both Statement (I) and Statement (II) are individually true and Statement (II) is NOT the correct explanation of Statement (1)
Before selecting the apparatus for the air - conditioner it is important to know the load requirements of the conditioned space, therefore the load calculations are important input for the initial cost of the conditioner and the operating cost also depends upon the loading conditions of the space.
Following loads are acting upon the components of a air - conditioner
External loads are due to the external environment, which includes heat loss or gain through Walls, roof, windows, ceiling etc.
Internal loads are loads due to occupants, lights appliances within the conditioned space..
Infiltration: Air leakage and moisture migration
System: Outside air, duct gain, reheat
Therefore both the statements are individually true.