19
E
6. Cooling pipe and drain pipe
6.5. Drainage Piping Work
•
Use VP25 (O. D. ø32 PVC TUBE) for drain piping and provide 1/100 or
more downward slope.
•
Be sure to connect the piping joints using adhesive of polyvinyl chlo-
ride family.
•
Observe the figure below for piping work.
•
Use attached drain hose to change the pipe extraction direction.
A
Max. 20m
B
about 1.5 to 2 m interval
C
Indoor unit
D
Insulation (9 mm or more)
E
Downward slope (1/100 or more)
F
Support metal
G
Use a support metal in the middle to prevent drain pipe movement.
H
Air bleeder
I
Raised
J
Odor trap
Do not install air bleeder, raisers and odor traps.
6.5. Drainage Piping Work
Grouped piping
A
VP (O. D. ø32 PVC TUBE)
B
Make it as large as possible
C
Indoor unit
D
Make the piping size large for grouped piping.
E
Downward slope (1/100 or more)
F
VP30 (O. D. ø38 PVC TUBE) for grouped piping. (9 mm or more insulation)
For drain-up
G
Max. 150 (as short as possible)
H
Downhill gradient (1/100 or more)
I
Up to 50 cm
J
Ceiling panel
Outdoor unit drainage pipe connection
When drain piping is necessary, use the drain pan (optional parts).
A
B
D
E
F
G
C
H
I
J
E
C
A
B
A
E
F
D
A
C
C
C
G
H
I
J
C
Summary of Contents for 2.5KKC
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