Daikin VRVIII RXYQ-PR1, Installation Manual

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RXYQ8~18P7W1BR1
VRVIII System air conditioner
4PW44039-1D
Installation manual
6
See figure 7 .
3 Outdoor unit installed
(See figure 6)
■
Front connection:
Remove the stop valve cover to connect.
■
Bottom connection:
Remove the knock holes on the bottom frame and route the
piping under the bottom frame.
■
Processing the gas side accessory pipe (2)
Only in case of connecting at lateral side, cut the gas side
accessory pipe (2) as shown in
figure 12 .
4 Branching the refrigerant piping
For installation of the refrigerant branching kit, refer to the
installation manual delivered with the kit.
(See figure 14)
Follow the conditions listed below:
- Mount the refnet joint so that it branches either
horizontally or vertically.
- Mount the refnet header so that it branches horizontally.
5 Piping length restrictions
Make sure to perform the piping installation within the range of
the maximum allowable pipe length, allowable level difference
and allowable length after branching as indicated in
"6.6. Example of connection" on page 7 .
6.5. Protection against contamination when
installing pipes
- Take measures to prevent foreign materials like moisture and
contamination from mixing into the system.
- Great caution is needed when passing copper tubes through
walls.
- Block all gaps in the holes for passing out piping and wiring
using sealing material (field supply). (The capacity of the unit
will drop and small animals may enter the machine.)
Example: passing piping out through the front
1 Pinched piping
2 Stop valve
3 Service port
4 Point of melting the brazing metal
5 Small lower piece of pipe
Precautions when connecting field piping.
■
Perform brazing at the gas stop valve before
brazing at the liquid stop valve.
■
Add brazing material as shown in the figure.
■
Be sure to use the supplied accessory pipes
when carrying out piping work in the field.
■
Be sure that the field installed piping does not
touch other pipes, the bottom panel or side
panel. Especially for the bottom and side
connection, be sure to protect the piping with
suitable insulation, to prevent it from coming into
contact with the casing.
A Front connection
Remove the stop valve cover to connect.
B Bottom connection:
Remove the knock holes on the bottom frame and route the piping
under the bottom frame
1 Gas pipe stop valve
2 Liquid pipe stop valve
3 Service port for adding refrigerant
4 Gas side accessory pipe (1)
5 Gas side accessory pipe (2)
6 Liquid side accessory pipe (1)
7 Liquid side accessory pipe (2)
8 Brazing
9 Gas side piping (field supply)
10 Liquid side piping (field supply)
11 Punch the knockout holes (use a hammer)
1 Gas side accessory pipe
2 Cutting location
3 Gas side piping (field supply)
4 Base
Unit type A B C D
8 Hp
(mm)
156 17 188 247
10 Hp
(mm)
156 23 192 247
12 Hp
(mm)
150 29 192 247
14~18 Hp
(mm)
150 29 192 251
NOTE
■
When connecting the piping on site, be sure to
use the accessory piping.
■
Make sure the onsite piping does not come into
contact with other piping, the bottom frame or side
panels of the unit.
1 Horizontal surface
Installation period Protection method
More than a month Pinch the pipe
Less than a month Pinch or tape the pipe
Regardless of the period
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak check.
1 2 3
1 Plug the areas marked with " ".
(When the piping is routed from the
front panel.)
2 Gas side piping
3 Liquid side piping