Daikin RXYQ6BRY16 Installation Manual page 22

Example 3: with standard multi layout
r s
u
Maximum allowable length
Between outdoor and indoor units
•
Actual piping length 165 m
Equivalent length
(a)
Total piping length
(a) A ssume equivalent piping length of REFNET joint = 0.5 m and REFNET header = 1 m (for calculation purposes).
(b) W hen the equivalent pipe length between outdoor and indoor units is 90 m or more, the size of the main pipes
(both gas side and liquid side) must be increased. Depending on the length of the piping, the capacity may drop,
but even in such a case it is possible to increase the size of the main pipes.
Even as the length of the piping is less than 90 m, it is able to increase the diameter of piping to improve performance.
1 2
Outdoor unit capacity (HP)
6~8
10
12~14
16
18~22
24
26~34
36~66
68~72
*1 If size is NOT available, increase is NOT allowed.
*2 If size is NOT available, increase is NOT allowed & limit the length of the piping to less than 120m.
Between outdoor branch and outdoor unit (in case of multi outdoor units).
•
Actual piping length
Equivalent length
Between EKEXV kit and Air handling unit (in case of Air handling unit is connected).
•
Actual piping length
Height difference
20
01_EN_3P748230-1.indd 20
t
Example 1.1
unit 8: a+b+c+d+e+f+g+p ≤ 165 m
Example 2.1
unit 8: a+b+c+d+e+f+g+p ≤ 165 m
190 m (b) —
1000 m Example 1.1
a+b+c+d+e+f+g+h+i+j+k+l+m+n+p ≤ 1000 m
Example 2.1
a+b+c+d+e+f+g+h+i+j+k+l+m+n+p ≤ 1000 m
3 5
1 Outdoor unit
2 Main pipes (outdoor unit to first refrigerant branch kit)
3 Increase
4
4 First refrigerant branch kit
5 Indoor unit
Size up for equivalent length for outdoor-indoor units over (90 m)
Gas pipe
19.1 mm → 22.2 mm
22.2 mm → 25.4 mm
Increase is NOT allowed
28.6 mm → 31.8 mm
Increase is NOT allowed
34.9 mm → 38.1 mm
Increase is NOT allowed
41.3 mm → 44.4 mm
10 m
13 m
Actual piping length from EKEXV kit to the Air handling unit ≤ 5 m
Height difference between EKEXV kit and the Air handling unit ≤ 5 m
Example 1.2.1
unit 6: a+b+h ≤ 165 m
unit 8: a+i+k ≤ 165 m
—
Example 1.2.1
a+b+c+d+e+f+g+h+i+j+k
≤ 1000 m
Liquid pipe
9.5 mm → 12.7 mm
*1
12.7 mm → 15.9 mm
*1
15.9 mm → 19.1 mm
*1
19.1 mm → 22.2 mm
*2
Example 3
r ≤ 10 m
u+s ≤ 10 m
u+t ≤ 10 m
—
Example 1.3
unit 8: a+i ≤ 165 m
—
Example 1.3
a+b+c+d+e+f+g+h+i
≤ 1000 m
23/01/2023 17:24:15