Daikin RXYQ34U7Y1B handleiding
Handleiding
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14 Piping installation
Installation and operation manual
16
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546220-1F – 2023.01
NOTICE
▪ Prepare a water drainage channel around the
foundation to drain waste water from around the unit.
During heating operation and when the outdoor
temperatures are negative, the drained water from the
outdoor unit will freeze up. If the water drainage is not
taken care of, the area around the unit might be very
slippery.
▪ When installed in a corrosive environment, use a nut
with plastic washer (a) to protect the nut tightening part
from rust.
a
14 Piping installation
14.1 Preparing refrigerant piping
14.1.1 Refrigerant piping requirements
NOTICE
Refrigerant R410A requires strict cautions for keeping the
system clean and dry. Foreign materials (including mineral
oils or moisture) should be prevented from getting mixed
into the system.
NOTICE
The piping and other pressure-containing parts shall be
suitable for refrigerant. Use phosphoric acid deoxidised
seamless copper for refrigerant.
▪ Only use phosphoric acid deoxidised seamless copper.
▪ Foreign materials inside pipes (including oils for fabrication) must
be ≤30mg/10m.
▪ Temper grade: use piping with temper grade in function of the
pipe diameter as listed in table below.
Pipe Ø Temper grade of piping material
≤15.9mm O (annealed)
≥19.1mm 1/2H (half hard)
▪ All piping lengths and distances have been taken into
consideration (see About the piping length in the installer
reference guide).
14.1.2 To select the piping size
Determine the proper size using the following tables and reference
figure (only for indication).
A
B B B
C
D F
G
E
x
y
b
a
3
1 2 4 5
1,2 VRVDX indoor unit
3 Branch selector box (BP*)
4,5 RADX indoor unit
a,b Indoor branch kit
x,y Outdoor multi connection kit
A, B, C: Piping between outdoor unit and (first)
refrigerant branch kit
Choose from the following table in accordance with the outdoor unit
total capacity type, connected downstream.
Outdoor unit
capacity type (HP)
Piping outer diameter size (mm)
Gas pipe Liquid pipe
8 19.1 9.5
10 22.2 9.5
12~16 28.6 12.7
18~22 28.6 15.9
24 34.9 15.9
26~34 34.9 19.1
36~54 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
Bekijk gratis de handleiding van Daikin RXYQ34U7Y1B, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | RXYQ34U7Y1B |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 8429 MB |
