10. Installation
18
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Ceiling concealed duct - low static pressure
Indoor Units
Indoor unit
• Tighten the nut and bolt to prevent the unit falling.
CAUTION
3) Install a canvass duct to the air discharge outlet and air
inlet so that vibration from the machine body is not
transmitted to the duct or ceiling. You should also apply
acoustic (insulation material) to the inside of the duct,
and vibration insulation rubber to the suspension bolts.
4) Install suspension bolts. (Use bolts of 13/32 inch diame-
ter.)
• Install the equipment where supporting structures are strong
enough to bear the equipment's weight. Use embedded inserts
or anchor bolts with new buildings and hole-in-anchors with old
buildings.
• Low static duct type in case of suction from back side.
• Low static duct type in case of suction from bottom side
10.4 Position of suspension bolt
①
A place where the unit will be leveled and that can sup-
port the weight of the unit.
②
A place where the unit can withstand its vibration.
③
A place where service can be easily performed.
④
Select and mark the position for fixing bolts.
⑤
Drill the hole for set anchor on the face of ceiling.
Air Filter
Air outlet
Air outlet
Air Filter
Panel Rear
Panel Rear
M10 Nut
M10 SP. washer
M10 washer
x 4
x 4
(Local
supply)
x 4
M10 Nut
M10 SP. washer
M10 washer
x 4
x 4
(Local
supply)
x 4