27
3P362438-9N
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: REYQ288TAYC
*
(REYQ144TAYC
*
+REYQ144TAYC
*
)
Branch Selector units
BS4Q54T × 1, BSQ60T × 1, BSQ96T × 1
Indoor units
FXMQ type: 18 × 1, 24 × 1 , 36 × 1 , 54 × 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. l:
f
3/8
×
15 ft. p:
f
3/8
×
10 ft.
Total length of liquid piping: 290 ft.
Total capacity of indoor unit: 106.3%
[D]
=
0.25×1
+
0.16×1
+
0.25×1
+
0.00×2
+
0.53×2
+
0.00×1
= 1.72 lbs.
↑
FXMQ18x1
↑
FXMQ24x1
↑
FXMQ36x1
↑
FXMQ54x2
↑
FXFQ36x2
↑
Other24x1
[C]: The smaller of [D] or 6.61 lbs. = 1.72 lbs.
R = (
60×0.175
+
20×0.121
+
35×0.081
+
160×0.040
+
15×0.015
)
×
1.04 + 1.3 + 18.2 + 1.72
↑
a
↑
b
↑
c, r, t
↑
d, f, g, h, i,
j, k, l, m, n,
o, p
↑
e
↑
[A]
↑
[B]
↑
[C]
= 44.495
⇒
44.5 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.
01_EN_3P362438-9N.indb 27
12/11/2019 2:36:00 PM
