Daikin RELQ72TBTJ Series, Installation Manual

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28 English
Parameter [D]
Indoor unit
capacity
type
FXSQ, FXMQ type
05
(*1)
07
(*1)
09
(*1)
12
(*1)
15 18 24 30 36 48 54
Refrigerant
amount
(lbs. (kg)/unit)
0.00
(0.00)
0.03
(0.014)
0.00
(0.00)
0.05
(0.021)
0.00
(0.00)
0.02
(0.01)
0.00
(0.00)
0.00
(0.00)
0.00
(0.00)
0.00
(0.00)
0.00
(0.00)
Indoor unit
capacity
type
FXFQ type
Others
07 09 12 15 18 24 30 36 48 54
Refrigerant
amount
(lbs. (kg)/unit)
0.36
(0.16)
0.33
(0.15)
0.30
(0.14)
0.26
(0.12)
0.18
(0.08)
0.53
(0.24)
0.61
(0.28)
0.53
(0.24)
0.36
(0.16)
0.00
(0.00)
0.00
(0.00)
*1.05-12 are only available for FXSQ.
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: RELQ240TBYC
*
(RELQ120TBYC
*
+RELQ120TBYC
*
)
Branch Selector units
BS4Q54T
*
× 1, BSQ60T
*
× 1, BSQ96T
*
× 1, BSF4Q54T
*
× 2
Indoor units
FXSQ type: 12×2
FXMQ type: 15 × 2 , 18 × 5
FXFQ type: 36 × 2
Other: 48 × 1
Liquid piping
a:
f
3/4 × 60 ft. f:
f
1/4 × 5 ft. k:
f
3/8 × 10 ft. p:
f
3/8 × 15 ft. u:
f
3/8 × 10 ft.
b: f 3/4 × 10 ft. g: f 1/4 × 5 ft.
:
f
3/8 × 10 ft. q:
f 1/4 × 10 ft. v: f 1/4 × 5 ft.
c:
f
5/8 × 10 ft. h:
f
3/8 × 5 ft. m:
f
3/8 × 15 ft. r:
f
3/8 × 10 ft. w:
f
1/4 × 5 ft.
d:
f
1/2 × 10 ft. i:
f
1/4 × 5 ft. n:
f
3/8 × 15 ft. s:
f
1/4 × 10 ft. A:
f
1/2 × 10 ft.
e:
f
3/8 × 10 ft. j:
f
1/4 × 5 ft. o:
f
3/8 × 15 ft. t:
f
1/4 × 5 ft. D:
f
1/2 × 15 ft.
Total length of liquid piping: 285 ft.
Total capacity of indoor unit: 110.0%
[D] = 0.05 × 2 + 0.00 × 2 + 0.02 × 5 + 0.53 × 2 + 0.00 × 1 = 1.26 lbs.
↑
FXSQ12 × 2
↑
FXMQ15 × 2
↑
FXMQ18 × 5
↑
FXFQ36 × 2
↑
Others48×1
[C]: The smaller of [D] or 6.61 lbs. = 1.26 lbs.
R = (70 × 0.175 + 10 × 0.121 + 35 × 0.081 + 115 × 0.040 + 55 × 0.015) × 1.04 + 4.1 + 19.4 + 1.26
↑
a, b
↑
c
↑
d, A, D
↑
e, h, k, ,
m, n, o,
p, r, u
↑
f, g, i, j,
q, s, t,
v, w
↑
[A]
↑
[B]
↑
[C]
= 47.348
⇒
47.3 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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