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Features
Reusability of existing piping for VRVIII-Q
• Pipe size selection
<for individual systems>
Indoor Unit
Part E
Type of piping
Capacity
φ 6.4
8 HP
X
10 HP
X
12 HP
X
14 HP
X
16 HP
X
18 HP
X
20 HP
X
22 HP
X
24 HP
X
Main piping
26 HP
X
(Part A)
28 HP
X
(Part B)
30 HP
X
(Part C)
32 HP
X
34 HP
X
36 HP
X
38 HP
X
40 HP
X
42 HP
X
44 HP
X
46 HP
X
48 HP
X
< 100
X
100 ≤ X < 150
X
150 ≤ X < 160
X
160 ≤ X < 200
X
200 ≤ X < 290
From
X
290 ≤ X < 330
REFNET
X
*1
330 ≤ X < 420
to REFNET
X
420 ≤ X < 480
(Part D)
X
480 ≤ X < 640
X
640 ≤ X < 900
X
900 ≤ X < 920
X
920 ≤
X
20-40 class
50 class
From
63 class
X
REFNET
80 class
X
*2
to indoor unit
100-125 class
X
(Part E)
140 class
X
200 class
X
250 class
X
Part A: Piping between Outdoor unit and Refrigerant branch connection
Part B: Piping between Outdoor unit connection piping kits
Part C: Piping between Outdoor unit connection piping kit and Outdoor unit
Part D: Piping between Refrigerant branch kit
Part E: Piping between Refrigerant branch connection and Indoor unit
: Piping size of conventional R-22 model
: Piping size of conventional R-410A model
: Standard piping size of VRVIII-Q
*1 Piping between REFNETs depends on total capacity index of indoor units connected below each REFNET. It cannot exceed piping size of upstream side.
*2 Piping from REFNET to indoor unit depends on the capacity of the connected indoor unit. It cannot exceed piping size of upstream side.
16
Outdoor Unit
Part D
Part A
Liquid
φ 9.5
φ 12.7
φ 15.9
φ 19.1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
: Possible
: Standard piping size of VRV III-Q. However, when equivalent piping length between outdoor unit and indoor unit
is 90 m or more, size of main piping must be increased. See the installation manual.
: Not possible
X
<for multi-connecting systems>
Indoor Unit
Part E
Piping size
φ 22.2
φ 12.7
φ 15.9
φ 19.1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Outdoor Unit
Part D
Part C
Part A
Part B
Gas
φ 22.2
φ 25.4
φ 28.6
φ 34.9
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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X
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X
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X
X
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X
X
X
X
X
X
X
X
X
X
General Information
SiBE341027
φ 41.3
φ 54.1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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X
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X
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X
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X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Troubleshooting
