English
6
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.
(mm)
<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.
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.
(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.
Model
A
B
C
D
Q8 type
156
17
188
247
Q10 type
156
23
192
247
Q12 type
150
29
192
247
Q14 · 16 type
150
29
192
251
C
A
A
B
25
90
150
D
Cutting
location
Gas side
accessory
pipe (2)
Gas side accessory pipe (2)
Gas side piping
(field supply)
Base
Pattern 1
Pattern 2
Prohibited pattern
Change to pattern 1 or pattern 2
to indoor unit
to indoor unit
to indoor unit
to indoor unit
to indoor unit
to indoor unit
Piping between outdoor units
Piping between outdoor units
Downward inclination
Downward inclination
Oil remains in piping
Front connections
Side (bottom) connections
Front connections
Side (bottom) connections
Front connections
Side (bottom) connections
Level
Rise
Downward inclination
A
B
A
B
Front connections
Side (bottom) connections
01_EN_3P226891-13Q.fm Page 6 Thursday, December 2, 2010 10:15 AM
