21
General Installation Guidelines
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GENERAL INSTALLATION GUIDELINES
Installation Plate
39-9/32 (998)
2-23/32 (69)
14-11/16 (373)
5-13/32 (137)
2-3/32 (53)
13-19/32 (345)
Ø2-9/16 (65)
3-9/32 (83)
Unit Outline
1-1/16 (27)
5-29/32 (150)
4-17/32 (115)
Ø2-9/16 (65)
3-9/32 (83)
5-9/32 (134)
1-1/16 (27)
2-3/32 (53)
11-13/16 (300)
5-29/32 (150)
7-13/32 (188)
Installation Plate
Chassis
Hook
Type "A" Screws
Figure 17: Mega 18 and 24K Wall Mount Indoor Unit Installation 
Plate.
Figure 18: Mega 18 and  24K Wall Mount Indoor Unit Installation Plate Dimen-
sions.
Figure 19: Indoor Unit with the Bottom Cover On (Bottom View; Appear-
ances Will Vary Depending on Indoor Unit Model).
Figure 20: Steps to Removing the 
Bottom Cover.
To access the indoor unit piping port connections, 
terminal block, and to make the indoor unit installation 
procedure easier, it is recommended that the bottom 
cover be removed first. 
1.  Unsnap the bottom cover at its top left and right 
sides (Location 1). 
2.  Unsnap each of the three (3) or four (4) small 
C-hooks located in the middle of the bottom cover 
(Location 2). Number of C-hooks present depends 
on model of indoor unit. 
3.  Lift the three (3) to four (4) hinges on the bottom 
cover up and out of the channels molded to the 
left, right, and middle of the indoor unit (Location 
3). Number of hinges present depends on model 
of indoor unit. 
4.  Set aside the bottom cover to re-install after all 
procedures are complete.
3
3
3
Removing the Indoor Unit Bottom Cover (Mega HEV2 Indoor Units Only)
Figure 21: Removing the Bottom Cover 
(Appearances Will Vary Depending on 
Indoor Unit Model).
Indoor Unit Mounting