6. SYSTEM DESIGN
ADDITIONAL CHARGE CALCULATION2-5.
The outdoor unit refrigerant is charged at the factory.îž”
Additional refrigerant required to be charged on site depending on pipe length.îž”
The additional refrigerant charge amount is calculated according to the following formula.îž”
Round up the calculated result to two decimal places.îž”
CALCULATION OF ADDITIONAL CHARGE REFRIGERANT

Diameter of liquid
pipe
unit: mm (in.)
Additional amount for
pipe length
unit: g/m
ø6.35 (1/4) 21
ø9.52 (3/8) 58
Calculation of additional amount for pipe length

Total
length of
ø9.52mm
(3/8in.)
liquid pipe
x 58
g/m
m
kg
Total
length of
ø6.35mm
(1/4in.)
liquid pipe
x 21
g/m
m
kg
+ =
Total
kg
- (06 - 18) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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