Install Instructions
Table Of Contents
15
General Installation Guidelines
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GENERAL INSTALLATION GUIDELINES
Mounting of Indoor Unit Installation Plate
Follow the procedure and best practices below when mounting the 
indoor unit’s plate to a wall.
Procedure
1.  Before installation of the plate, confirm the position the screw 
types (A or B) between chassis and installation plate. 
2.  Mount the installation plate horizontally by aligning the centerline 
using a leveling tool.
3.  Use provided screws when mounting the plating.
•If mounting the unit on concrete wall, use field supplied anchor 
bolts.
4.  Observe the left and right rear piping clearance when drilling into 
the wall, as shown in Figure 11 (090HSV4, 120HSV4) and Figure 
12 (180HSV4).
Selectlocationcarefully.Unitshouldbeanchoredtoastrongwalltopre-
ventunnecessaryvibration.
•Whenchoosingalocationforthewallmountplate,besuretotake
intoconsiderationroutingofwiringforpoweroutletswithinthewall.
Contactingwiringcancauseseriousbodilyinjury,ordeath.
•Usecautionwhendrillingholesthroughthewallsforthepurposes
ofpipingconnections.Powerwiringcancauseseriousbodilyinjury,
ordeath.
Mounting Installation Plate to Wall (090HSV4, 120HSV4, 180HSV4)
Ø2-19/32
4-
27/32
3- 24/32
Left 
rear piping
Installation Plate
Place a level on raised tab
Unit Outline
8-
17/32
6-
29/32
17-13/32 17-13/32
Unit: Inch
090HSV4, 120HSV4
Right
rear piping
Ø2-19/32
Figure 9:  Installation Plate Screws - 090HSV4, 120HSV4
Unit: Inch
Ø2-19/32
Ø2-19/32
2 -11/16
2-3/16
Right rear 
piping
Left rear
piping
Installation Plate
Measuring  Tape
Measuring  Tape
Hanger
Place a level on raised tab
Unit Outline
8-3/32
4-3/32
18-3/32 22-13/32
180HSV4
Ø65
123
A Type : 95
B Type : 170
A Type B Type
Right rear piping
Left rear piping
Place a level on raised tab
Unit
Outline
217
175
(Unit : mm)
A Type : 442
B Type : 434
A Type : 442
B Type : 439
Ø65Ø65
Installation Plate
Refer to “Drilling Piping Hole in the Wall” on page 16 as 
you follow procedure to install plate.
A-Type
B-Type
Figure 10:  Installation Plate Screws - 180HSV4
Figure 11:  Installation Plate - 090HSV4, 120HSV4 Figure 12:  Installation Plate - 180HSV4










