Daikin RXYSA8AMY1B handleiding
Handleiding
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15 Piping installation
Installation and operation manual
30
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1C – 2024.10
B: Piping between refrigerant branch kit and SV
units OR between two refrigerant branch kits OR
between two SV units
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.
Example:
▪ Downstream capacity for B' = [capacityindexofunita1] + [unita2]
+ [unita3] + [unita4] + [unita5] + [unita6] + [unita7]
▪ Downstream capacity for B'' = [capacity index of unit a3] +
[unita4]
▪ Downstream capacity for B''' = [capacity index of unit a10] +
[unita11]
Indoor unit capacity
index
Piping outer diameter [mm]
Gas pipe Liquid pipe
<150 15.9 9.5
150≤x<290 19.1
290≤x<390 22.2 12.7
C: Piping between refrigerant branch kit or SV unit
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).
Indoor unit capacity
index
Piping outer diameter [mm]
Gas pipe Liquid pipe
10~32 9.5 6.4
40~80 12.7
100~140 15.9 9.5
200~250 19.1
Size-up of piping
e
e
e
e
h
g
g
g
g h
h
h
b
d
c
a
f
f
a Outdoor unit
b Main pipes (size up if equivalent length >90m)
c First refrigerant branch kit (refnet)
d Last refrigerant branch kit (refnet)
e Indoor unit
f SV unit
g Piping between first and last refrigerant branch kit (size-
up may be required)
h Piping between last refrigerant branch kit and indoor unit
If a size-up of the piping is required, refer to the table below:
Size up – outer diameter [mm]
HP class Gas piping Liquid piping
8~10 19.1 → 22.2 9.5 → 12.7
12 22.2 → 25.4
(a)
12.7 → 15.9
(a)
If the size-up size of 25.4mm is NOT available, you must use the
standard size. It is not allowed to size-up to 28.6mm due to legal
requirements.
▪ 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 "16.2 To determine the additional refrigerant
amount"[436].
▪ Size-up of both main pipes is required when the equivalent pipe
length between outdoor and indoor units is 90m or more.
15.1.5 To select refrigerant branch kits
Refrigerant refnets
For piping example, refer to "15.1.4To select the piping size"[429].
▪ When using refnet joints at the first branch counted from the
outdoor unit side, choose from the following table in accordance
with the capacity of the outdoor unit (example: refnet joint c).
HP class Refrigerant branch kit
8~12 KHRQ22M29T9 (inch)
KHRQM22M29T (mm)
▪ For refnet joints other than the first branch, select the proper
branch kit model based on the total capacity index of all indoor
units connected after the refrigerant branch.
Indoor unit capacity index Refrigerant branch kit
<200 KHRQ22M20TA (inch)
KHRQM22M20T (mm)
200≤x<290 KHRQ22M29T9 (inch)
KHRQM22M29T (mm)
290≤x<390 KHRA22M65T (inch)
KHRAM22M65T (mm)
▪ Concerning refnet headers, choose from the following table in
accordance with the total capacity of all the indoor units connected
below the refnet header.
Indoor unit capacity index Refrigerant branch kit
<290 KHRQ22M29H (inch)
KHRQM22M29H9 (mm)
290≤x<390 KHRA22M65H (inch)
KHRAM22M65H (mm)
INFORMATION
Maximum 8 branches can be connected to a header.
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Productinformatie
Merk | Daikin |
Model | RXYSA8AMY1B |
Categorie | Niet gecategoriseerd |
Taal | Nederlands |
Grootte | 9612 MB |