Hitachi RAS-4HNC2E, Technical Catalogue

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4 Capacities and selection data
TCGB0136 rev.1 - 05/2021 47
4
4 .
C a p a c i t i e s a n d s e l e c t i o n d a t a
Index
4.1 Combinability range...............................................................................................................................48
4.1.1 Connected number of indoor units ................................................................................................................ 48
4.1.2 Connected capacity ratio ............................................................................................................................... 49
4.2 System selection procedure ..................................................................................................................50
4.2.1 Selection procedure (step 1) ......................................................................................................................... 50
4.2.2 Selection procedure (step 2) ......................................................................................................................... 52
4.3 Maximum cooling capacity ....................................................................................................................53
4.4 Maximum heating capacity ....................................................................................................................55
4.5 Correction indoor fan speed factor ........................................................................................................57
4.5.1 Cooling .......................................................................................................................................................... 57
4.5.2 Heating .......................................................................................................................................................... 57
4.6 Piping length correction factor (f
LC
, f
LH
) ..................................................................................................57
4.7 Defrost Operation correction factor (f
D
) .................................................................................................59
4.8 Correction ratio due to humidity (CR) ....................................................................................................59
4.9 Correction factor according to altitude (f
AL
) ............................................................................................59