Mitsubishi Heavy Industries FDC112KXEN6 Technical Manual page 234

(iv) Forming of piping and drain hose
1) Rear take out case
a) Forming of piping
Piping
Drain hose
Note (1) After forming of piping and before tape winding, confirm that the connecting wire is securely fixed to the terminal block.
2) Cautions for left take-out and rear take-out case
a) Looking down
For left running horizontal piping
For left rear take-out piping
For left running horizontal piping
c) Procedure for changing drain hose
1. Remove the drain hose.
• Pull the drain hose off while
turning the end around.
d) This air conditioner is designed to
collect dew formed on itsback in
the drain pan for discharging, so
please do not lay power cables,
etc. in any part above the gutter.
Gutter
Wall
Pipe space
(vi) Drain piping
1) Lay the drain piping with downgrade to facilitate flow of drain,and do not make a trap or chevron-shaped bend.
(The drain piping can be taken out from the unit to the left, right, rear and down direction.)
2) Wrap the thermal insulator on the hard vinyl chloride pipe (VP-16) laid in the room.
3) Run the drain piping in a place where there is no fear of abnormal odors being generated at the end of the drain hose.
4) Do not run the drain piping directly into a sewer where sulfur-based poisonous or flammable gases are generated.
There is danger of poisonous or flammable gases penetrating into the building through the drain piping.
5) Pour water into the drain pan below the heat exchanger to check that water is drained outdoors.
• Hold the root portion of pip-
ing, change the direction then
expand and make forming.
For right running horizontal piping
For right rear take-out piping
For right running horizontal piping
2. Remove the drain cap.
• Remove by hand or pliers.
(v) Installation of unit
• To remove the unit from the
mounting plate, remove the
right and left lids then remove
the claw at the lower portion
of base.
Lid (right hand)
Mounting plate
Claw at the lower portion of indoor unit base.
No chevron-shaped bend is allowed.
No trap is allowed.
The end shall
not be sub-
merged in wa-
ter.
b) Tape winding
b) The piping can be taken out from the rear,
3. Insert the drain cap.
• Insert the drain cap which was
removed in procedure 2 securely
using a hexagonal wrench, etc.
Note (1) When it is not inserted se-
curely, water leakage may
occur.
Claw (2 places)
Indoor unit
Mounting plate
Wall
Illustration showing the end of drain hose
230
- -
• Wind the tape on the portion
which passes through the hole on
the wall.
• Always make taping on the wir-
ing which crosses with the piping,
if any.
left, left rear, right and down.
Right
Rear
Down
Left rear
4. Connect the drain hose.
• Push the end of the drain hose
onto the fitting while turning
it around.
Note (1) When it is not inserted securely,
water leakage may occur.
Installation work procedure
(1) Hang the upper portion of in-
door unit on the mounting plate.
(2) The indoor unit can be fixed
with one action by pushing its
lower portion slightly.
Left
Down