Additional Charge Calculation - Fujitsu AOU48RLXFZ Design & Technical Manual

2-5.

ADDITIONAL CHARGE CALCULATION

● The outdoor unit is charged refrigerant at the factory.
● Additional refrigerant required to be charged on site depending on pipe length.
● The additional refrigerant charge amount is calculated according to the following formula.
● Round up the calculated result to two decimal places.
CALCULATION OF ADDITIONAL CHARGE REFRIGERANT
Diameter of liquid
pipe
unit: in. (mm)
ø1/4 (6.35)
ø3/8 (9.52)
Calculation of additional amount for pipe length
Total
length of
x 0.624
ø3/8in.
oz./ft.
(9.52mm)
(58g/m)
liquid pipe
ft (m)
oz. (g)
Additional amount for
pipe length
unit: oz./ft. (g/m)
0.224 (21)
0.624 (58)
Total
length of
x 0.224
ø1/4in.
oz./ft.
(6.35mm)
(21g/m)
liquid pipe
+ =
ft (m)
oz. (g)
- (06 - 17) -
Total Total
=
oz. (g) lbs (kg)
6. SYSTEM DESIGN