Dimension Of Ceiling Opening And Location Of The Expansion Bolts - Trane 4MXC8512B10N0 Installer Manual

• If there is an opening in the ceiling, it should be reinforced to keep it flat and prevent vibration.
• If the support structure of the ceiling is not strong enough, a beam made of angle iron can be
used to mount the unit to for added support.
• If the indoor unit is not installed in an air conditioned area, please insulate around the unit
to prevent condensation. The thickness of the insulation depends on the actual installation
environment.
Dimension of Ceiling Opening and Location of the Expansion Bolts (M10)
For the units: 12-18k
H
For the units: 24k
H
Item
Model
12K
26-3/8
18K
37-3/8
24K
(950)
A B
26-1/4 23-5/8
(670) (666) (600)
30-11/16
33-1/16
(780)
(840)
Fig.3
C D E
19-1/2 5-11/16
(495) (145)
5-11/16
26-3/4
(680) (145)
11
Cassette Unit
Unit: Inch (mm)
F G
9-7/16 22-7/16
22-7/16
(240) (570)
26-3/4 30-11/16
9-7/16
(680)
(240)
H
(570)
(780)