21
S4359249
Fig. 3-32
3-11. Duct for Fresh Air
There is a duct connection port (knock-out hole) at the
right-rear on the Panel Top of the indoor unit for
drawing in fresh air. If it is necessary to draw in fresh
air, remove the cover by knocking out and connect the
duct to the indoor unit through the connection port.
(Fig. 3-32)
If connection at the right-rear on the Panel Top is not
appropriate, another duct connection port can be made
by cutting an opening on the left side of the Rear Panel
of the indoor unit as shown in Fig. 3-33.
3-12. Installing the Drain Piping
●
Prepare a standard PVC pipe (O.D. 1-3/64 in.) for
the drain and connect it to the indoor unit drain pipe
with the supplied hose clamps to prevent water
leaks.
●
Connect the drain piping so that it slopes downward
from the unit to the outside. (Fig. 3-34)
●
Never allow traps to occur in the course of the
piping.
●
Insulate any piping inside the room to prevent
dripping.
●
Use the supplied drain pipe to connect the drain
pipe with the drain outlet of the indoor unit.
●
After connecting the drain pipe securely, wrap the
supplied drain pipe insulator around the pipe, seal
the gap at the drain socket with the supplied black
insulation tape, then secure it with clamps.
(Fig. 3-35)
●
After the drain piping, pour water into the drain pan
to check that the water drains smoothly.
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instruction or
limitations.
CAUTION
Good
Min. 1/100
0961_T_I
Not good
Fig. 3-34
Fig. 3-33
0097_T_I
Black insulation tape
Drain pipe insulator
(Mount it so that the cut
section faces up)
Drain outlet
Drain pan
*Drain pipe clamp
*Position the clamp fasteners so they are
on the upper side of the pipe.
Fig. 3-35
Duct connection port
(Knock-out hole)
Panel Top
1017_M_I
Cut this portion
A
B
4-11/32"
3-15/16"
Rear side
Right side
1353_M_I
2432
3632, 4232
A
3-15/16"
7-3/32"
B
1-3/8"
1-31/32"
