Hitachi RAC-35WPB - AUTO SWING OPERATION; To start Vertical Auto Swing; POWERFUL OPERATION; To start POWERFUL operation

CAPACITIES TABLE
13
3.2. CORRECTION FACTORS ACCORDING TO PIPING LENGTH
Correction Factor for
Cooling Capacity
according to
Piping Length
The cooling capacity should be corrected according to the
following formula:
CCA = CC x F
CCA: Actual Corrected Cooling Capacity
(kcal/h)
CC: Cooling Capacity in the Performance
Table (kcal/h)
F: Correction Factor Based on the
Equivalent Piping Length
Correction Factor for
Heating Capacity
according to
Piping Length
The heating capacity should be corrected according to the
following formula:
HCA= HC x F
HCA: Actual Corrected Heating Capacity
(kcal/h)
HC: Heating Capacity in the Performance
Table (kcal/h)
F: Correction Factor Based on the
Equivalent Piping Length
The correction factors are shown in the following figure.
Equivalent Piping Length for:
– One 90º Elbow is 0.5m.
– One 180º Curve is 1.5m.
H: Vertical Distance Between Indoor Unit and Outdoor
Units in Meters
L: Actual One-Way Piping Length Between Indoor Unit
and Outdoor Unit in Meters
EL: Equivalent Total Distance Between Indoor Unit and
Outdoor Unit in Meters
(Equivalent One-Way Piping Length)
Models : RAK-18RPB/RAC-18WPB, RAK-25RPB/RAC-25WPB
Cooling Change Ratio
Heating Change Ratio
Pipe length (m)
Pipe length (m)
H
L