Daikin RXYSA8AMY1B handleiding
Handleiding
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15 Piping installation
Installation and operation manual
29
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1C – 2024.10
14.3.4 To prevent the outdoor unit from falling
over
In case the unit is installed in places where strong wind can tilt the
unit, take following measure:
1 Prepare 2 cables as indicated in the following illustration (field
supply).
2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit
to prevent the cables from scratching the paint (field supply).
4 Attach the ends of the cables.
5 Tighten the cables.
15 Piping installation
CAUTION
See "2 Specific installer safety instructions" [4 5] to make
sure this installation complies with all safety regulations.
15.1 Preparing refrigerant piping
15.1.1 Refrigerant piping requirements
NOTICE
The piping and other pressure-containing parts shall be
suitable for refrigerant. Use phosphoric acid deoxidised
seamless copper for refrigerant piping.
▪ Foreign materials inside pipes (including oils for fabrication) must
be ≤30mg/10m.
15.1.2 Refrigerant piping material
Piping material
Phosphoric acid deoxidised seamless copper
Flare connections
Only use annealed material.
Piping temper grade and thickness
Outer diameter
(Ø)
Temper grade Thickness (t)
(a)
6.4mm (1/4")
9.5mm (3/8")
12.7mm (1/2")
Annealed (O) ≥0.80mm
t
Ø
15.9mm (5/8") Annealed (O) ≥0.99mm
19.1mm (3/4")
22.2mm (7/8")
Half hard (1/2H) ≥0.80mm
25.4mm (1") Half hard (1/2H) ≥0.88mm
(a)
Depending on the applicable legislation and the maximum
working pressure of the unit (see "PS High" on the unit name
plate), larger piping thickness might be required.
15.1.3 Refrigerant piping insulation
▪ Use polyethylene foam as insulation material:
▪ with a heat transfer rate between 0.041 and 0.052W/mK (0.035
and 0.045kcal/mh°C)
▪ with a heat resistance of at least 120°C
▪ Insulation thickness:
Ambient
temperature
Humidity Minimum thickness
≤30°C 75% to 80% RH 15mm
>30°C ≥80% RH 20mm
15.1.4 To select the piping size
Determine the proper size using the following tables and reference
figure (only for indication).
A
e
B
B
C
C
d
b
3
B'''
C
C
d
a
10
a
11
a
1
a
2
a
3
a
4
a
5
a
6
a
7
a
8
a
9
C C
d
B'
CC
B''
B
b
1
C CC
b
2
a1~a11 VRVDX indoor units
b1~b3 SV units
c First branch kit (header)
d Indoor branch kit (refnet)
e VRV 5-S outdoor unit
A~C Piping
A: Piping between outdoor unit and (first)
refrigerant branch kit
Choose from the following table in accordance with the outdoor unit
capacity type. In case there is no first indoor branch kit (c), pipe A is
connected to the first SV unit or VRV DX indoor unit.
HP class Piping outer diameter [mm]
Gas pipe Liquid pipe
8~10 19.1 9.5
12 22.2 12.7
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Productinformatie
Merk | Daikin |
Model | RXYSA8AMY1B |
Categorie | Niet gecategoriseerd |
Taal | Nederlands |
Grootte | 9612 MB |