Installation Of Indoor Unit - Daikin FDMA125AV16 Installation Manual

(4) Open installation holes
(in the case of installation onto the existing ceiling).
• Open the installation holes on the ceiling of the
installation location, and work on the refrigerant piping,
drain piping, remote controller wiring and wiring
between the indoor and outdoor units to the piping
connection port and wiring connection port of the indoor
unit (refer to each piping and wiring procedure items).
• Ceiling framework reinforcement may be required in
order to keep the ceiling horizontal and prevent ceiling
vibration after opening the ceiling holes. For details,
consult your building and upholstery work contractors.
(5) Install the hanging bolts.
• Use M10 bolts for hanging the indoor unit.
Use hole-in anchors for the existing bolts and embedded
inserts or foundation bolts for new bolts, and fix the
indoor unit firmly to the building so that it may withstand
the mass of the unit.
!n addition, adjust clearance (50 -100mm) from the ceiling
In advance.
<Installation examples>
Indoor
unit
Note) Components shown in the figure above are
all local procurement.
-&
CAUTION------------
• Secure a sufficient maintenance space for the drain pan
and electrical components before installing the indoor
unit.
• Secure a sufficient maintenance space for the filter
chamber, and peripheral components before installing the
indoor unit.
Long nut or
turnbuckle
Hanging bolt
Fig. 3

5. INSTALLATION OF INDOOR UNIT

Depending on the optional parts, it may be easier to attach
them before installing the indoor unit. Refer to also the
installation manual attached to the optional parts.
For installation, use the attached installation parts and
specified parts.
(1) Install the indoor unit temporarily.
• Connect the hanging brackets to the hanging bolts. Be
sure to the use and tighten the nut and washer( procured
in the field) for each hanging bracket from both upper and
lower sides of the hanging bracket. (Refer to the Fig. 4)
At that time, the fall of the washer for the hanging bracket
can be prevented if the washing fixing plate (8) is used.
[Fixing hanging brackets]
Part to be procured in the field
f
Tighten from above and below
(Double nut)
[Fixing method of washers]
Washer fixing plate (8)
(accessory)
• Keep the air outlet covered with a protective sheet to prevent
weld spatter and other foreign materials from entering the
indoor unit and damaging the resin drain pan.
(If holes or cracks are generated in the resin drain pan, water
can leak.)
(2)
Adjust so that the unit is properly positioned.
(3)
Check the level of the unit.
(4) Remove the washer fixing plate used for preventing the
washer for hanger from dropping and tighten the upper
side nut.
Feed water into the tube and
set the indoor unit to the water
levels on the left and right.
[Maintaining horizontality]
6
Washer (Procured in the field)
Nut on the upper side
Fig.4
(Refer to Fig. 5)
Hanging bracket
Bottom of product
Fig.5