Daikin FXAA25AUV1B handleiding
Handleiding
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13 Piping installation
Installation and operation manual
20
FXAA15~63AUV1B
VRV system air conditioner
3P622285-1C – 2022.02
b Plastic container
3 Reattach the air filters (see "7.2.3To clean the air filter"[412]).
13 Piping installation
13.1 Preparing refrigerant piping
13.1.1 Refrigerant piping requirements
CAUTION
Piping MUST be installed according to instructions given in
"13Piping installation"[420]. Only mechanical joints (e.g.
braze+flare connections) that are compliant with the latest
version of ISO14903 can be used.
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.
Refrigerant piping diameter
For piping connections of the indoor unit use the following piping
diameters:
Class Pipe outer diameter (mm)
Liquid pipe Gas pipe
15~32 Ø6.4 Ø9.5
40~63 Ø12.7
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") Annealed (O) ≥0.8mm
t
Ø
9.5mm (3/8")
12.7mm (1/2")
(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.
13.1.2 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
Pipe outer diameter
(Ø
p
)
Insulation inner
diameter (Ø
i
)
Insulation thickness
(t)
6.4mm (1/4") 8~10mm ≥10mm
9.5mm (3/8") 12~15mm ≥13mm
12.7mm (1/2") 14~16mm ≥13mm
Ø
i
Ø
i
t
Ø
p
Ø
p
If the temperature is higher than 30°C and the humidity is higher
than RH80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
13.2 Connecting the refrigerant piping
DANGER: RISK OF BURNING/SCALDING
13.2.1 To connect the refrigerant piping to the
indoor unit
CAUTION
Install the refrigerant piping or components in a position
where they are unlikely to be exposed to any substance
which may corrode components containing refrigerant,
unless the components are constructed of materials that
are inherently resistant to corrosion or are suitably
protected against corrosion.
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
▪ Pipe length. Keep refrigerant piping as short as possible.
1 Flare connections. Connect refrigerant piping to the unit using
flare connections.
2 Insulation. Insulate the refrigerant piping, the insulating tape
should be wrapped from the L-shaped bend all the way to the
end inside the unit as follows:
d
f
b
e
g
a c
h
db
i
a Field piping
b Indoor unit piping insulation tubing
c Indoor unit piping
d Insulating tubing tape
e Insulating tape (accessory)
f Large tie wrap (accessory)
g Beginning of wrapping
h L-shaped bend
i Insulation tubing seam (make sure there are no gaps in
the insulation tubing seam)
NOTICE
Make sure to insulate all refrigerant piping. Any exposed
piping might cause condensation.
14 Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction MUST comply with the applicable
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
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Productinformatie
| Merk | Daikin |
| Model | FXAA25AUV1B |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 4375 MB |
