Daikin RXYQ5-48MAY1, Руководство по обслуживанию

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Si39-407 Selection of Pipe Size, Joints and Header
Appendix 317
Wall thickness of refrigerant pipe
(Unit : mm)
∗
The table shows the requirements of Japanese High Pressure Gas Control low. The thickness
and material shall be selected in accordance with local code. (As of Jan.2003)
6.2.3 How to select the REFNET header
Select the proper REFNET Header using the following table based on the total capacity index of
indoor units installed after the header.
When using REFNET Joints at the first branch counted from the outdoor unit side, use
KHRP26M73H for larger than RXYQ24MY1B.
6.2.4 Piping between the REFNET Joints.
Select the proper pipe size using the following table based on the total capacity index of indoor
units connected downstream.
Connection piping size should be larger than main piping size.
Connection piping size should not exceed the refrigerant piping size selected by "the model with
combination units".
6.2.5 Piping between the multi connection piping kit
Select the proper pipe size using the following table based on the total capacity index of outdoor
units connected upper stream.
Temper grade O Type 1/2H Type
Copper tube O.D
φ
6.4
φ
9.5
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
25.4
φ
28.6
φ
31.8
φ
34.9
φ
38.1
φ4
1.3
Copper tube W.T
(Minimum
requirement)
0.80 0.80 0.80 0.99 0.80 0.80 0.88 0.99 1.10 1.21 1.32 1.43
Total capacity index of indoor units REFNET Header (Kit Name)
<200
KHRP26M22H (Max.4 Branches)
KHRP26M33H (Max8 Branches)
≥
200~<290
≥
290~<640 KHRP26M72H (Max8 Branches)
≥
640
KHRP26M73H (Max8 Branches)
KHRP26M73HP
Total capacity index of indoor units Gas Liquid
<200
φ
15.9
φ
9.5
≥
200~<290
φ
22.2
≥
290~<420
φ
28.6
φ
12.7
≥
420~<640
φ
15.9
≥
640~<920
φ
34.9
φ
19.1
≥
920
φ
41.3
Total capacity index of outdoor units
connected to upper stream
Gas Liquid Oil
Less than RXYQ22MAY1
φ
28.6
φ
15.9
φ
6.4
RXYQ24MAY1
φ
34.9
RXYQ26MAY1 or more~
Less than RXYQ32MAY1
φ
19.1