Daikin VRV III Manual page 443

Installation
Bolt Pitch
Preparations Before Installation
1. Relative positions of the unit and suspension bolt. (Refer to Fig. 2).
2. Install a canvas duct to the air outlet and air inlet so that
vibration from the unit isn't 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 sus-
pension bolts.
3. Open the installation hole. (Pre-set ceilings)
• Once the installation hole is opened in the ceiling where
the unit is to be installed, pass refrigerant and drain pipe
and the power supply, transmission, and remote control-
ler wire to the unit's pipe and wire connection ports.
• After opening the ceiling hole, it might be necessary to
reinforce the ceiling frame to prevent shaking or to main-
tain the levelness of the ceiling.
Consult an architect or carpenter for details.
4. Install suspension bolts.
(Use bolts of 10 mm diameter.)
• Install the unit where supporting structures are strong
enough to bear the unit's weight. Use embedded inserts
or anchor bolts with new buildings and hole-in-anchors
with old buildings. Adjust the distance to the ceiling
beforehand.
438
1148
1100
Air outlet
Outdoor-air
processing unit
1100 or more
(Service space)
Unit
FXMQ125MFV1
FXMQ200·250MFV1
Fig. 2
Suspension bolt (×4)
Air inlet
Inspection hatch
600
744 685
1380 1296
(length: mm)
Installation example
Note) All the above parts are field supplied.
: http://splitoff.ru/tehn-doc.html
ED34-862
Ceiling slab
Anchor
Long nut or turn-buckle
Suspension bolt
Outdoor-air processing unit
Fig. 3
FXMQ-MF