Refrigerant Charge Amount - Panasonic U-36LE1U6 Installation Instructions Manual

Example:
Main tube of unit
1st branch
Unit distribution tube
●
Example of each tubing length
Main tubing Distribution joint tubing
LA = 131 ft. Indoor side
LB = 16 ft. 1 = 16 ft.
LC = 16 ft. 2 = 16 ft.
LD = 49 ft. 3 = 7 ft.
● Obtain charge amount for each tubing size
Note that the charge amounts per 3.3 ft. are different for each liquid tubing size.
ø3/8" (ø9.52) → LA + LB + LC + LD
ø1/4" (ø6.35) → 1 + 2 + 3 + 4 + 5 : 75 ft. × 0.279 oz/ft.
Additional refrigerant charge amount is 147 oz.
Be sure to check the limit
CAUTION
density for the room in which
the indoor unit is installed.
L1
LA
L2
LB LC
1 2 3
7 type 9 type 12 type
4 = 20 ft.
5 = 16 ft.
: 212 ft. × 0.602 oz/ft. = 127 oz
13
LN
n
18 type
n–1
18 type
= 20 oz
Total 147 oz