Daikin VRVIII-Q Series Installation Manual page 11

4. Remove the knock hole on the bottom frame and route
the piping under the bottom frame.
5. Gas side shutoff valve
6. Liquid side shutoff valve
7. Refrigerant charge port
8. Brazing
9. Liquid side accessory pipe (1)
10. Gas side accessory pipe (1)
11. Gas side accessory pipe (2)
12. Liquid side accessory pipe (2)
13. Knockout hole
14. Punch the knock hole
15. Gas side piping (field supply)
16. Liquid side piping (field supply)
Processing the Gas side accessory pipe (2)
Only in case of connecting at lateral side, cut the Gas side acces-
sory pipe (2) referring the figure below.
Gas side
accessory
pipe (2)
Cutting
location
Gas side accessory pipe (2)
Gas side piping
(field supply)
Model A
Q8 type 156
Q10 type 156
Q12 type 150
Q14 · 16 type 150
<In case of multi system: RQYQ18~48PY1B>
(Refer to figure 15)
1. If connected to the front
2. When connected at lateral side (bottom)
3. Remove the shutoff valve cover to connect.
4. Remove the knock hole on the bottom frame and route
the piping under the bottom frame.
5. Gas side shutoff valve
6. Liquid side shutoff valve
7. Refrigerant charge port
8. Brazing
9. Liquid side accessory pipe (1)
10. Gas side accessory pipe (1)
11. Gas side accessory pipe (2)
12. Liquid side accessory pipe (2)
13. Knockout hole
14. Punch the knock hole.
English
Base
(mm)
B C D
17 188 247
23 192 247
29 192 247
29 192 251
Note
<Connecting Refrigerant Piping>
• 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 or the bottom frame or side panels of the unit.
<Multi Systems>
• The Outdoor unit multi connection piping kit (sold separately) is
needed when connecting piping between outdoor units.
Refer to the installation manual that comes with the kit when
doing this piping work.
4.
Precautions when connecting piping between outdoor units (In
case of multi system)
The Outdoor unit multi connection piping kit (sold separately) is
needed to connect piping between outdoor units in multi system.
Only proceed with piping work after considering the limitations on
installation listed here and in "5. Branching the refrigerant piping",
always referring to the kit's installation manual.
(1) The piping between outdoor units must be installed level
(Pattern 1) or with a rise (Pattern 2). Otherwise oil may pool
in the pipes.
Pattern 1
Front connections
Level
to indoor unit
Side (bottom) connections
to indoor unit
Piping between outdoor units
Pattern 2
Front connections
Rise
to indoor unit
Side (bottom) connections
to indoor unit
Change to pattern 1 or pattern 2
Prohibited pattern
Downward inclination
Front connections
to indoor unit
Side (bottom) connections
to indoor unit
(2) To avoid the risk of oil detention in the stopping unit, always
connect the shutoff valve and the piping between outdoor
units as shown in the figure A or figure B.
A
B
Front connections
Piping between outdoor units
Downward inclination
Downward inclination
Oil remains in piping
A
B
Side (bottom) connections
6