Daikin REYQ144TYDN - 14.3.2. Charging method

27 3P362438-3H 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 as shown below. (Example
7.5. System piping (length) limitations on page 11.)
Outdoor system: REYQ264TTJU (REYQ144TTJU+REYQ120TTJU)
BS units
BS4Q54T × 1, BSQ60T × 1, BSQ96T × 1
Indoor units
FXMQ type: 18 × 1, 24 × 2 , 36 × 1 , 54 × 1
FXFQ type: 36 × 2
Other: 48 × 1
Liquid piping
a: f 3/4 × 60 ft. e: f1/4 × 15 ft. i: f3/8 × 20 ft. m: f3/8 × 20 ft. r: f1/2 × 10 ft.
b: f 5/8 × 30 ft. f: f3/8 × 15 ft. j: f3/8 × 20 ft. n: f3/8 × 15 ft. t: f1/2 × 15 ft.
c: f 1/2 × 20 ft. g: f3/8 × 15 ft. k: f3/8 × 20 ft. o: f3/8 × 10 ft.
d: f 3/8 × 15 ft. h: f3/8 × 30 ft. l: f3/8 × 15 ft. p: f3/8 × 30 ft.
Total length of liquid piping: 375 ft.
Total capacity of indoor unit: 104.5%
[D] =
0.25×1
+
0.16×2
+
0.25×1
+
0.00×1
+
0.53×2
+
0.00×1
= 1.88 lbs.
↑
FXMQ18x1
↑
FXMQ24x2
↑
FXMQ36x1
↑
FXMQ54x1
↑
FXFQ36x2
↑
Other24x1
[C]: The smaller of [D] or 6.61 lbs. = 1.88 lbs.
R =
(
60×0.175
+
30×0.121
+
35×0.081
+
225×0.040
+
15×0.015
) × 1.04 +
1.3
+
13.9
+
1.88
↑
a
↑
b
↑
c, r, t
↑
d, f, g, h, i,
j, k, l, m, n,
o, p
↑
e
↑
[A]
↑
[B]
↑
[C]
= 44.318 ⇒
44.3 lbs.
Round off in units of 0.1 lbs.
INFORMATION
Piping length is considered the distance from the outdoor unit to the
farthest indoor unit.
01_EN_3P362438-3H.indb 27 1/14/2015 10:20:20 AM