Mitsumi electronic PLA-ABA installation manual Installation location, Installing the indoor unit

2. Installation location

Refer to the outdoor unit installation manual.

3. Installing the indoor unit

			Fig. 3-1
			37-3/8								(inch)
25/32 to 1-25/32			33-27/32 to 35-13/16		25/32 to 1-25/32
			31-7/8						25/32 to	1-25/32
			6-5/16
		-5/16					(5/16)
		6
33-1/16							-3/16 +1-3/8		24-13/32	33-27/32 to 35-13/16
	5-29/32	3-17/32				6-5/16	(5/16) 23-13/16				37-3/8
			7-3/8	6-5/16					25/32 to	1-25/32
			33-1/16
				1-15/16	to2-3/4	4-1/8
				*		* C			D
		+3/16 0 5-5/16	98-7/16				+3/16	0	1-3/8
							11/16
		11/16	Min.			Min. 19-11/16
			Fig. 3-2

3-17/32	A	B	15/16
		2-3/811-3/16	14-27/32
6-11/16	5-1/2		7-15/32
* *			*

(mm, inch)

Models		A		B
A12, A18, A24, A30	80,	3-5/32	74,	2-29/32
A36, A42	85,	3-11/32	77,	3-1/32

Fig. 3-3

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

The indoor unit should be supplied with the following accessories.

Accessory name	Q'ty
Installation template	1
Washers (with insulation)	4
Washers (without insulation)	4
Pipe cover (for refrigerant piping joint)
Small diameter	1
Large diameter	1
Band	8
Screw with washer (M5 × 25) for mounting grille	4
Drain socket	1
Insulation	1

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

Caution:

Install the indoor unit at least 2.4m (94-1/2inch) above floor or grade level. For appliances not accessible to the general public.

•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 is shown.)

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

*The dimensions of ceiling opening can be regulated within the range shown in Fig.3-2; so center the main unit against the opening of ceiling, ensuring 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 fi eld.

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

Outer side of main unit	Grille
Bolt pitch	Ceiling
Ceiling opening	Multi function casement (option)
Outer side of Grille	Entire periphery

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

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

		(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"

3.3. Refrigerant and drainage piping locations of indoor unit

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

Drain pipe

Ceiling

Grille

Refrigerant pipe (liquid)

Refrigerant pipe (gas)

Water supply inlet

Main unit

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

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