Daikin CONVENI-PACK, Руководство по установке

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6 English
6-1 Sele c tion of Piping Material
• Make sure that the inner side and outer side of the piping used is clean and free of contaminants, such as sulphur, oxide, dust, chips, oil and fat, and water.
It is desirable that the maximum oil adhesion in the piping is 30 mg per 10 m.
• Use the following type of refrigerant piping.
Material: Seamless phosphorus deoxidized copper tube (C1220T-O for a maximum outer diameter of 15.9 mm and C1220T-1/2H for a mini-
mum outer diameter of 19.1 mm)
Refrigerant piping size and wall thickness: Decide the size and thickness from the following table.
(This produ c t uses R410A. The withstand pressure of O type may be insuffi c ient if it is used for piping with a minimum diameter of
19.1 mm. Therefore, be sure to use 1/2 H type with a minimum thi c kness of 1.0 mm.
If O type is used for piping with a minimum diameter of 19.1 mm, a minimum thi c kness of 1.2 mm will be required. In that c ase, be
sure to perform the blazing of ea c h joint.)
• Be sure to perform piping work within the range specified in the following table.
Max. permissible
one-way pipin
g len g th (equivalent len g th)
Max. difference in
hei
g ht between indoor
and outdoor units
Difference in hei g ht between unit cooler and showcase
unit below outdoor unit
unit above outdoor unit
a + b + c + d1
≤
130m (d1 is d or e whichever is lon g er)
a2 + b2 + e1
≤
130m (e1 is d2 or e2 whichever is lon g er)
b + c + d1
≤
30m (d1 is d or e whichever is lon g er)
b2 + e1
≤
30m (e1 is d2 or e2 whichever is lon g er)
H1, H2
≤
35m (Note)
H1, H2
≤
10m
H3
≤
5m
H4
≤
0.5m
Max. branch pipin g len g th (actual len g th)
Difference in hei g ht between air-conditioner indoor units
Note: A trap is required at 5 m intervals from outdoor unit.
〈
Refri g erant pipin g len g th
〉
〈
Refri g erant pipin g size
〉
(Refri g eration)
Outdoor unit side
Pipin g size (mm)
Liquid pipe Gas pipe
50m or less 50~130m 50m or less 50~130m
Pipin g between branchin g areas
(B, b, C, c)
Pipin g between branchin g areas and each unit
Select the pipin g from the followin g table in accordance with the total capacity of indoor units
connected downstream.
No size after branchin g can exceed the size of any upstream pipin g .
φ
9.5 × 0.8 (O type)
φ
12.7 × 0.8 (O type)
φ
12.7 × 0.8 (O type)
φ
6.4 × 0.8 (O type)
φ
9.5 × 0.8 (O type)
φ
15.9 × 1.0 (1/2H type)
φ
19.1 × 1.0 (1/2H type)
φ
22.2 × 1.0 (1/2H type)
φ
25.4 × 1.0 (1/2H type)
φ
25.4 × 1.0 (1/2H type)
φ
28.6 × 1.2 (1/2H type)
Total capacity of indoor units after branchin g
Less than 6.0 kW
6.0 kW or over and less than 9.9 kW
9.9 kW or over and less than 14.5 kW
14.5 kW or over and less than 18.5 kW
18.5 kW or over
Gas pipe size Liquid pipe size
(Air-condition)
Outdoor unit side
Pipin g size (mm)
Liquid pipe Gas pipe
50m or less 50~130m 50m or less 50~130mm
Pipin g between branchin g areas
(B2, b2)
Pipin g between branchin g areas and each unit
Select the pipin g from the followin g table in accordance with the total capacity of indoor units
connected downstream.
No size after branchin g can exceed the size of any upstream pipin g .
φ
9.5 × 0.8 (O type)
φ
12.7 × 0.8 (O type)
φ
9.5 × 0.8 (O type)
φ
12.7 × 0.8 (O type)
φ
15.9 × 1.0 (1/2H type)
φ
19.1 × 1.0 (1/2H type)
φ
22.2 × 1.0 (1/2H type)
φ
25.4 × 1.0 (1/2H type)
φ
28.6 × 1.2 (1/2H type)
Total capacity of indoor units after branchin g
Less than 16.0 kW
16.0 kW or over and less than 22.4 kW
22.4 kW or over and less than 28.0 kW
Gas pipe size Liquid pipe size
Pipin g between outdoor unit and first
branch (A, a)
Pipin g between outdoor unit and first
branch (A2, a2)
In case of no connection
with booster unit
Outdoor unit
Showcase
Unit
cooler
Air
conditioner
Liquid pipin g
Gas pipin g
Difference in hei g ht
Note
When connectin
g the booster unit,
refer to the installation manual
provided for the booster unit.
If the size of the connection pipe of the indoor unit exceeds that of the branch pipe shown in the table
above, enlar
g e the size of the connection pipe near the indoor unit before connectin g it.
If the size of the connection pipe of the indoor unit exceeds that of the branch pipe shown in the table
above, enlar
g e the size of the connection pipe near the indoor unit before connectin g it.