Daikin RXYQ5PY1, Руководство по обслуживанию

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SiEN34-705 Appendix
General Information 143
∗
Note 2
3. Indoor unit to the nearest branch kit
≤
40 m
2. For calculation of Total extension
length, the actual length of above
pipes must be doubled. (except
main pipe and the pipes that are
not increased)
1. It is necessary to increase the pipe
size between the first branch kit and
the final branch kit. (Reducers must be
procured on site)
However, the pipes that are same pipe
size with main pipe must not be
increased.
Allowable length after the first refrigerant branch kit to indoor units is 40 m or less, however it can be extended up to 90 m
if all the following conditions are satisfied. (In case of “ Branch with REFNET joint ” )
∗
Note 3
If the pipe size above the REFNET header is
φ
34.9 or more, KHRP26M73HP is required.
*If available on the site, use this size. Otherwise it can not be increased.
Required Conditions Example Drawings
4. The difference between
[Outdoor unit to the farthest indoor
unit] and [Outdoor unit to the
nearest indoor unit]
≤
40 m
a + b × 2 + c × 2 + d × 2 + e × 2 + f × 2
+ g × 2
+ h + i + j + k + l + m + n + p
≤
1000
m
h, i, j....... p
≤
40 m
8 b + c + d + e + f + g + p
≤
90 m
increase the pipe size of b, c, d,
e, f, g
The farthest indoor unit 8
The nearest indoor unit 1
( a + b + c + d + e + f + g + p ) - ( a + h )
≤
40 m
Increase the pipe size as follows
φ
9.5
→ φ
12.7
φ
12.7
→ φ
15.9
φ
15.9
→ φ
19.1
φ
19.1
→ φ
22.2
φ
22.2
→ φ
25.4*
φ
28.6
→ φ
31.8*
φ
34.9
→ φ
38.1*
a
A B C D E F G
b c d e f
g
h i j k l m n
1 2 3 4 5 6 7
8
H1
p
Outdoor unit
REFNET joint (A-G)
Indoor units ( 1 - 8 )