Handleiding
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6 Installation
Installer and user reference guide
19
RXYTQ8~16T7YF
VRV IV system air conditioner
4P388989-1A – 2015.07
6.4.6 Multiple outdoor units: Knockout holes
Connection Description
Front connection Remove the front plate knockout holes to
connect.
Bottom connection Remove the knockout holes on the bottom
frame and route the piping under the bottom.
6.4.7 To connect the refrigerant branching kit
For installation of the refrigerant branching kit, refer to the installation
manual delivered with the kit.
▪ Mount the refnet joint so that it branches either horizontally or
vertically.
▪ Mount the refnet header so that it branches horizontally.
A
B
±
3
0
°
a
b
c
a
a Horizontal surface
b Refnet joint mounted vertically
c Refnet joint mounted horizontally
6.4.8 To protect against contamination
Protect the piping as described in the following table to prevent dirt,
liquid or dust from entering the piping.
Unit Installation period Protection method
Outdoor unit >1month Pinch the pipe
<1month Pinch or tape the pipe
Indoor unit Regardless of the
period
Block all gaps in the holes for passing out piping and wiring using
sealing material (field supply) (otherwise the capacity of the unit will
drop and small animals may enter the machine).
Example: passing piping out through the front.
a
a Close the areas marked with " ". (When the piping is
routed from the front panel.)
▪ Only use clean pipes.
▪ Hold the pipe end downwards when removing burrs.
▪ Cover the pipe end when inserting it through a wall, to prevent
dust and/or particles entering the pipe.
6.4.9 To braze the pipe end
▪ 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 20kPa (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.
6.4.10 Using the stop valve and service port
To handle the stop valve
▪ Make sure to keep both stop valves open during operation.
▪ The figure below shows the name of each part required in
handling the stop valve.
▪ The stop valve is factory closed.
c
d
a
b
a Service port and service port cover
b Stop valve
c Field piping connection
d Stop valve cover
Bekijk gratis de handleiding van Daikin RXYTQ28TYF, 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 | RXYTQ28TYF |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11898 MB |
