9
ENGLISH
3.  HOW TO INSTALL THE INDOOR UNIT
■
 4-Way Cassette Type (Type U2)
3-1. Preparation for Suspending
This unit uses a drain pump. Use a carpenter’s level to check 
that the unit is level.
3-2. Suspending the Indoor Unit
(1) Fix the suspension bolts securely in the ceiling using 
the method shown in the diagrams, by attaching them 
to the ceiling support structure, or by any other method 
that ensures that the unit will be securely and safely 
suspended.
Note:  For DC Fan Tap Change Procedure for 4-Way  
Cassette, see page 23.
Hole-in-anchor 
Hole-in-plug
Concrete
Insert
Suspension bolt 
(M10 or 3/8") 
(field supply)
Drain outlet (other side)
(VP25)
Suspension lug
* Over 20 mm
* Over 20 mm
340 mm
840 mm
950 mm
272 mm
50 mm
Refrigerant tubing joint (liquid side)
Refrigerant tubing joint (gas side)
184 mm
134 mm
33.5 mm
177 mm
Type 100 ~ 140: 319 mm
Type 36 ~ 71: 256 mm
127 mm
Indoor Unit
View from top 
A: 700 mm
A: 780 mm
B: 860 ~ 910 mm
 A: (suspension bolt pitch)
 B: (ceiling opening dimension)
B: 860 ~ 910 mm
(2) Follow the diagram to make the holes in the ceiling.
(3) Determine the pitch of the suspension bolts using the supplied full-scale installation diagram (printed on container box). 
The diagram show the relationship between the positions of the suspension fitting, unit, and panel. 
Use the nut (field supply) and washer (supplied) for upper and lower position of the suspension lug.
* The overlapping portion between the ceiling and panel for cassette should be kept over 20 mm.
00_301040_all.indb   9 2018/5/25   10:20:21