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3P477778-7G
English
Parameter [D]
Indoor unit
capacity
type
FXMQ type
07
09
12
15
18
24
30
36
48
54
Refrigerant
amount
(lbs. (kg)/unit)
0.06
(0.03)
0.03
(0.014)
0.14
(0.06)
0.29
(0.13)
0.25
(0.11)
0.16
(0.07)
0.33
(0.15)
0.25
(0.11)
0.08
(0.04)
0.00
(0.00)
Indoor unit
capacity
type
FXFQ type
Others
07
09
12
15
18
24
30
36
48
Refrigerant
amount
(lbs. (kg)/unit)
0.36
(0.16)
0.33
(0.15)
0.30
(0.14)
0.26
(0.12)
0.61
(0.28)
0.53
(0.24)
0.61
(0.28)
0.53
(0.24)
0.36
(0.16)
0.00
(0.00)
Example for refrigerant branch using REFNET joint and REFNET
header for systems and each pipe length is shown below. (Example
7.5. System piping (length) limitations on page 11.)
Outdoor system: REYQ240XAYCU (REYQ1REYQ120XAYCU)
Branch Selector units
BS4Q54T×1, BSQ60T×1, BSQ96T×1
Indoor units
FXMQ type: 18×1, 24×1, 30×1, 36×2
FXFQ type: 36×2
Other: 48×1
Liquid piping
a:
f
3/4×60 ft.
e:
f
1/4×15 ft.
i:
f
3/8×20 ft. m:
f
3/8×15 ft.
r:
f
1/2×10 ft.
b:
f
5/8×20 ft.
f:
f
3/8×10 ft.
j:
f
3/8×10 ft. n:
f
3/8×15 ft.
t:
f
1/2×15 ft.
c:
f
1/2×10 ft.
g:
f
3/8×10 ft.
k:
f
3/8×10 ft. o:
f
3/8×10 ft.
d:
f
3/8×15 ft.
h:
f
3/8×15 ft.
:
f
3/8×15 ft. p:
f
3/8×10 ft.
Total length of liquid piping: 285 ft.
Total capacity of indoor unit: 110.0%
[D]
= 0.25×1 + 0.16×1 + 0.33×1 + 0.25×2 + 0.53×2 + 0.00×1 = 2.30 lbs.
↑
FXMQ18x1
↑
FXMQ24x1
↑
FXMQ30x1
↑
FXMQ36x2
↑
FXFQ36x2
↑
Other48x1
[C]: The smaller of [D] or 6.61 lbs. = 2.30 lbs.
R = ( 60×0.175 + 20×0.121 + 35×0.081 + 155×0.040 + 15×0.015)×1.04 + 1.3 + 19.4 + 2.30
↑
a
↑
b
↑
c, r, t
↑
d, f, g, h, i,
j, k, , m,
n, o, p
↑
e
↑
[A]
↑
[B]
↑
[C]
= 46.067
⇒
46.1 lbs.
Round off in units of 0.1 lbs.
INFORMATION
Piping length is considered by the distance from the outdoor unit to the
farthest indoor unit.
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