Daikin RXYLQ32T7Y1B handleiding
Handleiding
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14 Piping installation
Installation and operation manual
16
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543426-1C – 2025.01
Outdoor unit
capacity type (HP)
Piping outer diameter size [mm]
Gas pipe Liquid pipe
24 34.9 15.9
26~34 34.9 19.1
36~42 41.3 19.1
D: Piping between refrigerant branch kits
Choose from the following table in accordance with the indoor unit
total capacity type, connected downstream. Do not let the
connection piping exceed the refrigerant piping size chosen by the
general system model name.
Indoor unit capacity
index
Piping outer diameter size (mm)
Gas pipe Liquid pipe
<150 15.9 9.5
150≤x<200 19.1
200≤x<290 22.2
290≤x<420 28.6 12.7
420≤x<640 15.9
640≤x<920 34.9 19.1
≥920 41.3
Example:
▪ Downstream capacity for E=capacity index of unit 1
▪ Downstream capacity for D=capacity index of unit 1+capacity
index of unit 2
E: Piping between refrigerant branch kit and
indoor unit
Pipe size for direct connection to indoor unit must be the same as
the connection size of the indoor unit (in case indoor unit is VRVDX
indoor or Hydrobox).
Indoor unit capacity
index
Piping outer diameter size (mm)
Gas pipe Liquid pipe
15~50 12.7 6.4
63~140 15.9 9.5
200 19.1
250 22.2
▪ When 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 the size of
the main pipes has to be increased. More specifications can be
found in the technical engineering data book.
e
d
b
c
a
a Outdoor unit
b Main pipes (increase if the equivalent piping length is
≥90m)
c First refrigerant branch kit
d Piping between refrigerant branch kit and indoor unit
e Indoor unit
Size up
HP class Piping outer diameter size (mm)
Gas pipe Liquid pipe
8 19.1 → 22.2 9.5 → 12.7
10 22.2 → 25.4
(a)
Size up
HP class Piping outer diameter size (mm)
Gas pipe Liquid pipe
12+14 28.6
(b)
12.7 → 15.9
16 28.6 → 31.8
(a)
18~22 15.9 → 19.1
24 34.9
(b)
26~34 34.9 → 38.1
(a)
19.1 → 22.2
36~42 41.3
(b)
(a)
If the size-up size is NOT available, you must use the standard
size. Sizes bigger than the size-up size are NOT allowed. But
even if you use the standard size, the equivalent piping length is
allowed to be more than 90m.
(b)
Pipe size-up is NOT allowed.
▪ The pipe thickness of the refrigerant piping shall comply with the
applicable legislation. The minimal pipe thickness for R410A
piping must be in accordance with the table below.
Pipe Ø (mm) Minimal thickness t (mm)
6.4/9.5/12.7 0.80
15.9 0.99
19.1/22.2 0.80
28.6 0.99
34.9 1.21
41.3 1.43
▪ In case the required pipe sizes (inch sizes) are not available, it is
also allowed to use other diameters (mm sizes), taken the
following into account:
▪ Select the pipe size nearest to the required size.
▪ Use the suitable adapters for the changeover from inch tomm
pipes (field supply).
▪ The additional refrigerant calculation has to be adjusted as
mentioned in "14.4.3 To determine the additional refrigerant
amount"[422].
F: Piping between refrigerant branch kit and
branch selector box (BP box)
Pipe size for direct connection on branch selector box (BP*) must be
based on the total capacity of the connected indoor units (only in
case RADX indoor units are connected).
Total capacity index
of connected indoor
units
Piping outer diameter size (mm)
Gas pipe Liquid pipe
20~62 12.7 6.4
63~149 15.9 9.5
150~208 19.1
Example:
Downstream capacity for F=[capacity index of unit 4]+[capacity index
of unit 5]
G: Piping between branch selector box (BP box)
and RA DX indoor unit
Only in case RADX indoor units are connected.
Indoor unit capacity
index
Piping outer diameter size (mm)
Gas pipe Liquid pipe
20, 25, 30 9.5 6.4
50 12.7
60 9.5
71 15.9
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Productinformatie
| Merk | Daikin |
| Model | RXYLQ32T7Y1B |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 6679 MB |
