Daikin RXYSA8AMY1B handleiding
Handleiding
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15 Piping installation
Installation and operation manual
32
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1C – 2024.10
Tightening torques
Stop valve
size [mm]
Tightening torque [N•m]
(a)
Valve body Hexagonal
wrench
Service port
Ø9.5 5~7 4mm 10.7~14.7
Ø12.7 8~10
Ø15.9 14~16 6mm
Ø19.1 19~21 8mm
Ø25.4
(a)
When opening or closing.
15.2.2 To remove the pinched pipes
WARNING
Any gas or oil remaining inside the stop valve may blow off
the pinched piping.
Failure to observe the instructions in procedure below
properly may result in property damage or personal injury,
which may be serious depending on the circumstances.
Use the following procedure to remove the pinched piping:
1 Make sure that the stop valves are fully closed.
2 Connect the vacuuming/recovery unit through a manifold to the
service port of all stop valves.
a
a
b
b
a Service port
b Stop valve
3 Recover gas and oil from the pinched piping by using a
recovery unit.
CAUTION
Do NOT vent gases into the atmosphere.
4 When all gas and oil is recovered from the pinched piping,
disconnect the charge hose and close the service ports.
5 Cut off the lower part of the gas and liquid stop valve pipes
along the black line. Use an appropriate tool (e.g. a pipe cutter).
WARNING
NEVER remove the pinched piping by brazing.
Any gas or oil remaining inside the stop valve may blow off
the pinched piping.
6 Wait until all oil has dripped out before continuing with the
connection of the field piping in case the recovery was not
complete.
15.2.3 To braze the pipe end
NOTICE
Precautions when connecting field piping. Add brazing
material as shown in the figure.
1
1
1
1
2 2
≤Ø25.4 >Ø25.4
▪ When brazing, blow through with nitrogen to prevent creation of
large quantities of oxidised film on the inside of the piping. This
film adversely affects valves and compressors in the refrigerating
system and prevents proper operation.
▪ Set the nitrogen pressure to 20 kPa (0.2 bar) (just enough so it
can be felt on the skin) with a pressure-reducing valve.
a b c d e
f
f
a Refrigerant piping
b Part to be brazed
c Taping
d Manual valve
e Pressure-reducing valve
f Nitrogen
▪ Do NOT use anti-oxidants when brazing pipe joints. Residue can
clog pipes and break equipment.
▪ Do NOT use flux when brazing copper-to-copper refrigerant
piping. Use phosphor copper brazing filler alloy (BCuP), which
does NOT require flux.
Flux has an extremely harmful influence on refrigerant piping
systems. For instance, if chlorine based flux is used, it will cause
pipe corrosion or, in particular, if the flux contains fluorine, it will
deteriorate the refrigerant oil.
▪ ALWAYS protect the surrounding surfaces (e.g. insulation foam)
from heat when brazing.
Bekijk gratis de handleiding van Daikin RXYSA8AMY1B, 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 | RXYSA8AMY1B |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 9612 MB |
