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Concealed Duct High Static Pressure
Installation Manual
Opening hole on ceiling
and placing of hanging bolt
• Considering the indoor unit and the hanged-up
piping/wiring work, determine the installation
position and direction.
• After installation position of the indoor unit has
been determined, open a hole on the wiring and
place the hanging bolt.
• For opening size of the ceiling and the hanging
bolt pitch, see the external view.
• When the ceiling has already boarded, draw the
drain pipe, refrigerant pipe, inter-unit wire
between indoor and outdoor units, central
control system wire, and remote controller wire
up to the position where pipes and wires are
connected before hanged-up the indoor unit.
The hanging bolts and nuts will be procured
locally.
Installation of hanging bolt
Use M10 hanging bolts (4 pcs, to be local
procure).
Matching to the existing structure, set pitch
according to size in the unit external view as
shown below.
Installation of indoor unit
• Attach the nuts (M10 or W3/8: Procured locally)
and the attached washers (Ø34) to the hanging
bolt.
• Put washers at up and down of T-groove of the
hanging bracket of the indoor unit to hang down
the indoor unit.
• Using a level vial, check that four sides are
horizontal. (Horizontal degree: Within 5mm)
• Check that four sides are horizontal using a
level vial. (Horizontal degree: Within 5mm)
REQUIREMENT
• Hang the unit in a horizontal position.
When unit is hanged to slant, it may cause
overflow of drainage.
• Install the unit within the dimension according
to the figure below.
• Using level vial or vinyl hose to confirm
whether the unit is hang horizontally.
Hanging bolt
M10 or W3/8
4 pieces
Nut
M10 or W3/8
12 pieces
New concrete slab
Install the bolts with insert brackets or anchor bolts.
Steel flame structure
Use existing angles or install new support angles.
Existing concrete slab
Use a hole-in anchors, hole-in plugs, or a hole-in bolts.
Rubber
Anchor bolt
(Blade type
bracket)
(Slide type
bracket)
(Pipe hanging
anchor bolt)
Hanging bolt
Hanging bolt Support angle
Nut
(W3/8 or M10)
(1)
M10 flat washer
(Accessory)
(2)
M10 flat washer
(Accessory)
(1) Required those other than M10 flat washer at site.
(2) To prevent falling-off of bolt (safety), be sure to set it just
under the hanging bracket as shown in the figure.
(965mm × 664mm)
Hanging bolt
(W3/8 or M10)
Nut
(W3/8 or M10)
±
5mm
0~5mm
Vinyl hose
Set the air inlet
and air outlet
sides are
within 5mm
with each
other.
Pour
water
Set the drain pipe
connecting port side
within 5mm lower than
opposite side.
9-EN
+00EH99860501_01EN_DuctHigh_IM.book Page 9 Monday, January 19, 2009 8:38 AM
Summary of Contents for RAV-SM1103DT-A
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