Remove The Suspension Lug; Suspension Bolt Position; Fasten The Suspension Lugs To The Suspension Bolts; Attach The Unit To The Suspension Lugs - Mitsubishi Heavy Industries FDCA Series Technical Manual

3) Remove the suspension lug.

Take out the screws, then loosen the installation bolt.
Loosening
margin
8~12 mm
Lug for
suspension

4) Suspension Bolt Position

a) Using the paper pattern supplied as an accessory as a
criterion, select suspension bolt positions and piping
hole positions, then install the suspension bolts and
make holes for piping. After positioning, remove the
paper pattern.
b) Keep strictly to the suspension bolt lengths specified
below.
Suspension
bolts
(d) Installation

1) Fasten the suspension lugs to the suspension bolts.

<If there is ceiling material>
Air outlet
Fasten the bolts
to the front of the
slotted holes.

2) Attach the unit to the suspension lugs.

1 Slide the unit onto the suspension lugs from
the front, hanging it on the bolts.
2 Fasten the unit securely on the left and right
sides with 4 suspension bolts (M8).
3 Tighten the 2 screws (M4) on the left and right
sides.
After sliding the side panels on from the front to rear, fasten them securely with the screws.
Indoor unit
Model
Ceiling board
FDEN151, 201
Lug for
FDEN251, 301
suspension
FDEN401, 501
Unit
Lug for suspension
*Fasten it securely with double nuts.
Suspension
lug screws (M4)
Suspension
lug mounting
bolt (M8)
Unit : mm
A B
1070 1022
1320 1272
1620 1572
<If there is no ceiling material>
Suspension bolts
Lug for suspension
Ceiling board
Flat washer
(accessory parts)
*Double nuts
92
- -
Lug for
suspension
Paper
pattern
A
24 B
Air outlet
Wall
Suspension bolts
Flat washer
Unit
(accessory parts)
*Double nuts
Lug for
suspension
Lug for
suspension
(M4)
Suspension bolts
(M8)
24
Nut
Flat washer