Mitsubishi Electronics PLA-A-AA Installation location, Installing the indoor unit, Inch

2. Installation location

Refer to the outdoor unit installation manual.

3. Installing the indoor unit

Caution:

Install the indoor unit at least 2.4 m, 8 ft above floor or grade level.

1	2
3	4
5	6
7
	Fig. 3-1

				37-3/8 D						(inch)
25/32 to 1-25/32			33-27/32 to 35-13/16 C			25/32 to 1-25/32
				31-7/8 B				1-25/32
			6-1/4					to
								25/32
		6-1/4						C
37-3/8D	33-1/16 A						23-13/16 B	33-27/32 to 35-13/16
		7-9/16 3-27/32				6-1/4
			7-3/4	33-1/16 A	6-1/4			1-25/32
								to
								25/32
G	5-5/16						1-15/16 to 2-3/4	4-1/8	C	D
				40				1-3/16	+3/16 0
	+3/16 0	F			E		F		11/16
E	11/16			Min.
								Min. 20
								H
				Fig. 3-2

3.1. Check the indoor unit accessories (Fig. 3-1)

The indoor unit should be supplied with the following accessories.

	Accessory name	Q’ty
1	Installation template	1
2	Washers (with insulation)	4
	Washers (without insulation)	4
3	Pipe cover (for refrigerant piping joint)
	Small diameter	1
	Large diameter	1
4	Band	8
5	Screw with washer (M5 ⋅ 25) for mounting grille	4
6	Drain socket	1
7	Insulation	1

3.2. Ceiling openings and suspension bolt installation locations (Fig. 3-2)

•Using the installation template (top of the package) and the gauge (supplied as an accessory with the grille), make an opening in the ceiling so that the main unit can be installed as shown in the diagram. (The method for using the template and the gauge are shown.)

*Before using, check the dimensions of template and gauge, because they change due to fluctuations of temperature and humidity.

*The dimensions of ceiling opening can be regulated within the range shown in following diagram; so center the main unit against the opening of ceiling, en- suring that the respective opposite sides on all sides of the clearance between them becomes identical.

•Use M10 (3/8”) suspension bolts.

*Suspension bolts are to be procured at the field.

•Install securely, ensuring that there is no clearance between the ceiling panel & grille, and between the main unit & grille.

A Outer side of main unit B Bolt pitch

C Ceiling opening D Outer side of Grille E Grille

F Ceiling

G Multi function casement (option) H Entire periphery

*Note that the space between ceiling panel of the unit and ceiling slab and etc must be 10 to 15 mm, 25/64-19/32 inch.

		(mm, inch)
Models	C	D
A12, A18, A24, A30	241, 9-1/2”	258, 10-3/16”
A36, A42	281, 11-1/16”	298, 11-3/4”

7-9/16	G
-1/2 A		5/8
3
		A
E D		F
2-3/8 11-1/4		14-23/32
∗6-11/16 ∗5-1/2

C

(inch)

A
-15/32			(mm, inch)
	∗7
		Models	A
		A12, A18, A24, A30	80, 3-5/32”
B		A36, A42	84, 3-5/16”

3.3. Refrigerant and drainage piping locations of indoor unit

The figure marked with * in the drawing represent the dimensions of the main unit excluding those of the optional multi function casement. (Fig. 3-3)

ADrain pipe

BCeiling

CGrille

DRefrigerant pipe (liquid)

ERefrigerant pipe (gas)

FWater supply inlet

GMain unit

•When the optional multi-functional casement is installed, add 135 mm, 5-5/16 inch to the dimensions marked on the figure.

Fig. 3-3

3