Hitachi RAC-25WXD, Technical Catalogue, Page: 13 / 39

CAPACITIES TABLE
11
3.3. CORRECTION FACTORS ACCORDING TO DEFROSTING OPERATION
The heating capacity in the preceding paragraph, excludes the condition of the frost or the defrosting operation period. In
consideration of the frost or the defrosting operation, the heating capacity is corrected by the equation below.
Corrected heating capacity = Defrost Correction factor x unit capacity
OUTDOOR TEMPERATURE (°CDB)
-15 -10 -7 -5 0 7 10 15
Correction factor (humidity rate85% RH)
0.95 0.95 0.89 0.85 0.81 1.0 1.0 1.0
Correction Factor
NOTE:
The correction factor is not valid for special conditions such as snowfall or operation in a transitional period.
Heating
capacity
1 cycle
Hour
Defrost max. 12mins
Reduction in
capacity due to white
frost