Cautions For Left Take-Out And Rear Take-Out Case; Looking Down; Procedure For Changing Drain Hose; Installation Of Unit - Mitsubishi Heavy Industries FDCA Series Technical Manual

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
b) Procedure for changing drain hose
1. Remove the drain hose.
• Pull the drain hose off while
turning the end around.
(
In the case of the FDKN301
model, loosen the spring
clamp.
(f)

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.
(g) 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 chech that water is drained outdoors.
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.
)
Lid (right hand)
Mounting plate
Wall
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.
3. Insert the drain cap.
• Insert the drain cap which was
removed in procedure 2 se-
curely using a hexagonal
wrench, etc.
Note(1) When it is not inserted
securely, water leakage
may occur.
Claw (2 places)
(FDKN301 : 3 places)
Indoor unit
Mounting plate
Illustration showing the end of drain hose
96
- -
b) The piping can be taken out from the
rear, left, left rear, right and down.
Right
Rear
Down
Left rear
Down
Note (1) Running of piping from the lower
left can only be done with the
FDKN151~251 models.
4. Connect the drain hose.
• Push the end of the drain hose
onto the fitting while turning
it around.
(
In the case of the FDKN301
model, loosen the spring
clamp, then attach the drain
hose securely on the fitting.
Note(1) When it is not inserted se-
curely, 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
(1)
)