Daikin RXQ6AYM, Installation Manual

Page: 15 / 80

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9. Refrigerant pipe size and allowable
pipe length
9.1 Selection of piping material
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must be ≤30 mg/10 m.
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pipe diameter as listed in table below.
NOTICE
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with national and local laws.
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the applicable national and international codes.
Pipe Ø (mm) Temper grade of piping material
≤ G H O D H Q Q D 2 9 (5/8 “ .
≥ G U D K I O D K + / (3/4
“
.
9.2 Selection of piping size
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9.2.1 Piping between outdoor unit and (first) refrigerant
branch kit: A, B, C
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total capacity type, connected downstream.
9.2.2 Piping between refrigerant branch kits: D
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total capacity type, connected downstream. Do not let the conne FWLRQ
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system model name.
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Outdoor unit capacity
type (HP)
Piping outer diameter size (mm)
Gas pipe Liquid pipe
(3/4
“
. a 8
. (3/8 “
(7/8 “ . 0
a
8. (1 1/8 “
. (1/2
“
8 a
. (5/8
“
. (1 3/8 “
a
. (3/4 “
(1 5/8
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. 0 a
Indoor unit capacity
index
Piping outer diameter size (mm)
Gas pipe Liquid pipe
(5/8
“
. 0
. (3/8 “ 0≤ [ (3/4 “ . 0 0
00≤ (7/8
“
. 0 [
0≤ [ 0
8. (1 1/8 “
. (1/2 “
0≤ (5/8
“
. 0 [
0≤
(3/4
“
.
(1 3/8 “ . 0 [
(1 5/8
“
. 0 ≥
‘
‘
‘
‘
‘
‘
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‘
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‘
‘
‘
‘
‘
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‘
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‡
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15 dia. : 4 positions)
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7 'LVWDQFHEHWZHHQIRXQGDWLRQEROWKROHV
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bolts M12. It is best to screw in the foundation
bolts until their length remains 20mm above
the foundation surface.
NOTICE
When installed in a corrosive
environment, use a nut with
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nut tightening part from rust.
≤
%
$
1 2 3 5 4 6 7
PP
0
P
P
3ODVWLFZDVKHU
1076
930
1240
‡ ‡
18
‡
20HP type
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8
‡
10
‡
+3W\SH
9.2.3 Piping between refrigerant branch kit and BP unit: F
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units are connected).
Total capacity index of connected
indoor units
Gas pipe
(mm)
Liquid pipe
(mm)
(1/4
“
. (1/2
“
. 0
(5/8 “ .
. (3/8
“
(3/4
“
. 8 0 0
a 0 . (7/8 “
‘
‘
‘
‘
‘
‘
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≥