Hitachi RWM-(H)FSN3E Technical Catalogue page 76

4 Capacity and selection
data
- Calculation of Q :
C
Once the correction factors to be applied have been determined, the formula for actual cooling capacity of
the RAS-4HVRNME-AF + RWM-4.0FSN3E system can be applied:
Q = 11.6 kW x 0.97 = 11.25 kW
C
As can be seen, the actual cooling capacity of the RAS-4HVRNME-AF + RWM-4.0FSN3E system (11.25 kW) is greater
than the required cooling load by the installation (10.5 kW). Therefore, the pre-selection will be considered valid both for
heating and cooling.
N O T E
If the actual cooling capacity calculated is less than the provided by the pre-selected unit, the calculation must
be done again with the unit immediately higher.
76
TCGB0070 rev.3 - 04/2012