Mitsubishi MSZ-GE15NA-8, MSZ-GE18NA, MSZ-GE18NA-8, MSZ-GE12NA-8, MSZ-GE15NA Installation Guide

ENGLISH

SPLIT-TYPE AIR CONDITIONERS

INSTALLATION MANUAL

JG79A856H01

MSZ-GE06/09/12/15/18NA MSY-GE09/12/15/18NA

When installing multi units, refer to the installation manual of the multi unit for outdoor unit installation.

Required Tools for Installation

Phillips screwdriver	5/32 in. (4 mm) hexagonal wrench
Level	Flare tool for R410A
Scale	Gauge manifold for R410A
Utility knife or scissors	Vacuum pump for R410A
3 in. (75 mm) hole saw	Charge hose for R410A
Torque wrench	Pipe cutter with reamer
Wrench (or spanner)

1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY

•Be sure to read these safety precautions and instructions.

•Be sure to observe the warnings and cautions specified here.

•After reading this manual, be sure to store it with the OPERATING INSTRUCTIONS for future reference.

•Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system.

WARNING (Could lead to death or serious injury.)

NDo not install the unit by yourself (user).

Improper or incomplete installation could cause fire, electric shock, injury due to the unit falling, or water leakage. Consult a qualified installer or the dealer from whom you purchased the unit.

NFollow the instructions detailed in the installation manual.

Incomplete installation could cause fire or electric shock, injury due to the unit falling, or leakage of water.

NWhen installing the unit, use appropriate protective equipment and tools for safety.

Failure to do so could cause injury.

NInstall the unit securely in a place that can bear the weight of the unit.

If the installation location cannot bear the weight of the unit, the unit could fall

causing injury.

NNPerform electrical work according to the installation manual and be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit.

If the capacity of the power circuit is insufficient or there is incomplete electrical

work, it could result in a fire or an electric shock.

NGround the unit correctly.

Do not connect the ground wire to a gas pipe, water pipe, lightning rod or tel-

ephone ground. Defective grounding could cause electric shock.

NNDo not damage the wires.

Damaged wires could cause fire.

NNBe sure to shut off the main power when setting up the indoor P.C. board or wiring.

Failure to do so could cause electric shock.

NUse the specified wires to securely connect the indoor and outdoor units. Attach the wires firmly to avoid applying stress to the terminal block.

Improper connection could cause fire.

NNDo not install the unit in a place where flammable gas may leak.

If gas leaks and accumulates around the unit, it could cause an explosion.

NDo not use intermediate connection of the power cord or the extension cord. Do not connect many devices to one AC outlet.

It could cause a fire or an electric shock.

NNUse the parts provided or specified parts for the installation work.

The use of defective parts could cause an injury or leakage of water due to a fire,

an electric shock, the unit falling, etc.

NNWhen plugging the power supply plug into the outlet, make sure that there is no dust, blockage, or loose parts both in the outlet and on the plug. Verify that the power supply plug is completely in the outlet.

If there is dust, blockage, or loose parts on the power supply plug or the outlet, it could cause electric shock or fire. If loose parts are found on the power supply plug, replace it.

NNSecurely attach the electrical cover to the indoor unit and the service panel to the outdoor unit.

If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are not attached securely, dust, water, etc. could collect in the unit and could cause a fire or

an electric shock.

NNWhen installing, relocating, or servicing the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit.

Any presence of foreign substance such as air can cause abnormal pressure rise and may result in explosion or injury. The use of any refrigerant other than that specified for the system will cause mechanical failure, system malfunction, or unit breakdown. In the worst case, this could lead to a serious impediment to securing

product safety.

NNDo not discharge the refrigerant into the atmosphere. Check that the refrigerant gas does not leak after installation has been completed. If refrigerant leaks during installation, ventilate the room.

If refrigerant comes in contact with a fire, harmful gas could be generated.

If refrigerant gas leaks indoors, and comes into contact with the flame of a fan

heater, space heater, stove, etc., harmful gases will be generated.

NNUse appropriate tools and piping materials for installation.

The pressure of R410A is 1.6 times higher than R22. Not using the appropriate tools and materials, or improper installation could cause the pipes to burst causing

an injury.

NNWhen pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

If the refrigerant pipes are disconnected while the compressor is running and the stop valve is open, air could be drawn in and the pressure in the refrigeration cycle

could become abnormally high, causing the pipes to burst.

NNWhen installing the unit, securely connect the refrigerant pipes before starting the compressor.

If the compressor is started before the refrigerant pipes are connected and the stop valve is open, air could be drawn in and the pressure in the refrigeration cycle

could become abnormally high, causing the pipes to burst.

NNFasten a flare nut with a torque wrench as specified in this manual.

If fastened too tight, a flare nut could break and cause refrigerant leakage.

NNInstall the unit according to national wiring regulations.

CAUTION (Could lead to serious injury when operated incorrectly.)

N Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit			N Do not touch the air inlet or the aluminum fins of the outdoor unit.
breaker.			This could cause injury.
If the Ground Fault Interrupt (GFI) circuit breaker is not installed, an electric shock			N Do not install the outdoor unit where small animals may live.
could occur.			If small animals enter the unit and damage its electrical parts, it could cause a
N Perform the drainage/piping work securely according to the installation			malfunction, smoke emission, or fire. Keep the area around the unit clean.
manual.
If there is defect in the drainage/piping work, water could drip from the unit, and
damage household items.

1-2. SELECTING THE INSTALLATION LOCATION

INDOOR UNIT

•Where airflow is not blocked.

•Where cool air spreads over the entire room.

•On a rigid wall to reduce the possibility of vibration.

•Where it is not exposed to direct sunlight. Do not expose to direct sunlight also during the period following unpacking to before use.

•Where it can be easily drained.

•At a distance 3 ft. (1 m) or more away from a TV and radio. Operation of the air conditioner may interfere with radio or TV reception. An amplifier may be required for the affected device.

•In a place as far away as possible from fluorescent and incandescent lights (so the infrared remote control can operate the air conditioner normally).

•Where the air filter can be removed and replaced easily.

Note:

Install the indoor unit high on the wall where air can distribute over the entire room.

REMOTE CONTROLLER

•Where it is convenient to operate and easily visible.

•Where children cannot easily touch it.

•Select a position about 4 ft. (1.2 m) above the floor. Check that signals from the remote controller from that position are received by the indoor unit (‘beep’ or ‘beep beep’ receiving tone sounds). Then, attach remote controller holder to a pillar or wall and install wireless remote controller.

Note:

In rooms where inverter type fluorescent lamps are used, the signal from the wireless remote controller may not be received.

OUTDOOR UNIT

•Where it is not overly exposed to strong winds.

•Where airflow is good and dustless.

•Where neighbours are not annoyed by operation sound or hot air.

•Where rigid wall or support is available to prevent the increase of operation sound or vibration.

•Where there is no risk of combustible gas leakage.

•If installing the unit in a location high above the ground, be sure to secure the unit legs.

•Where it is at least 10 ft. (3 m) away from the antenna of TV set or radio. Operation of the air conditioner may interfere with radio or TV reception in areas where reception is weak. An amplifier may be required for the affected device.

•Install the unit horizontally.

•Please install it in an area not affected by snowfall or blowing snow. In areas with heavy snow, please install a canopy, a pedestal and/or baffle boards.

Note:

•It is advisable to make a piping loop near outdoor unit so as to reduce vibration.

•For increased efficiency, install the outdoor unit in a location where continuous direct sunlight or excessive water can be avoided as much as possible.

Note:

When operating the air conditioner in low outside temperature, be sure to follow the instructions described below.

•Never install the outdoor unit in a place where its air inlet/outlet side may be exposed directly to wind.

•To prevent exposure to wind, install the outdoor

unit with its air inlet side facing the wall and a baffle board on the air outlet side.

Avoid the following places for installation where air conditioner trouble is liable to occur.

•Where flammable gas could leak.

•Where there is an excessive amount of machine oil in the air.

•Where oil is splashed or where the area is filled with oily smoke (such as cooking areas and factories, in which the properties of plastic could be changed and damaged).

•Salty places such as the seaside.

•Where sulfide gas is generated such as a hot spring.

•Where there is high-frequency or wireless equipment.

•Where there is emission of high levels of VOCs, including phthalate compounds, formaldehyde, etc., which may cause chemical cracking.

1-3. SPECIFICATIONS

1-3-1. POWER SUPPLY AND INDOOR/OUTDOOR WIRE CONNECTION

•Power should be taken from an exclusive branched circuit.

•Wiring work should be based on applicable technical standards.

•Wiring connections should be made following the diagram.

•Securely tighten screws.

Connecting wires and the ground wire

•Use solid conductor Min. AWG14 or stranded conductor Min. AWG14.

•Use double insulated copper wire with 600 V insulation.

•Use copper conductors only.

* Follow local electrical codes.

Power supply cable and ground wire

•Use solid or stranded conductor Min. AWG14.

•Use copper conductors only.

* Follow local electrical codes.

Note:

When the indoor unit is powered from the outdoor unit, depending on local code, a disconnect switch needs to be installed to a power supply circuit.

Electrical specifications

MODEL			MSZ-GE06NA		MSZ-GE09NA	MSZ-GE12NA	MSZ-GE15NA		MSZ-GE18NA
					MSY-GE09NA	MSY-GE12NA	MSY-GE15NA		MSY-GE18NA
INDOOR UNIT
Power supply (V, PHASE, Hz)						208/230, 1, 60
Min. Circuit Ampacity		(A)				1.0
Fan motor (F.L.A.)		(A)				0.76
OUTDOOR UNIT
Power supply (V, PHASE, Hz)						208/230, 1, 60
Max. Fuse size (time delay) (A)			*		15	15	15		15
Min. Circuit Ampacity		(A)	*		12	12	12		14
Fan motor (F.L.A.)		(A)	*		0.50	0.50	0.50		0.93
	(R.L.A) (A)	MSZ	*		6.6	6.6	7.4		10.0
Compressor		MSY	*		4.9	4.9	6.8
	(L.R.A) (A)	MSZ	*		8.2	8.2	9.3		12.5
		MSY	*		6.1	6.1	8.5
Control voltage					Indoor unit -	Remote controller: (Wireless)
				Indoor unit - Outdoor unit: DC12-24 V (Polar)

*MSZ-GE06NA is a dedicated indoor unit for multi system. Refer to the installation manual of the multi unit for details.

1-3-2. REFRIGERANT PIPES

•To prevent condensation, insulate the two refrigerant pipes.

•Refrigerant pipe bending radius must be 4 in. (100 mm) or more.

CAUTION

Be sure to use the insulation of specified thickness (table on the right). Excessive insulation may cause incorrect installation of the indoor unit, and too little insulation may cause condensate to form.

		Outside diameter	Minimum wall	Insulation
	Pipe		thickness	thickness	Insulation material
			inch (mm)
	For liquid	1/4 (6.35)	0.0315 (0.8)	5/16 (8)	Heat resistant foam
	For gas	3/8 (9.52)	0.0315 (0.8)	5/16 (8)	plastic 0.045 Spe-
		1/2 (12.7)	0.0315 (0.8)	5/16 (8)	cific gravity

•The unit has flared connections on both indoor and outdoor sides.

•Remove the valve cover from the outdoor unit, then connect the pipe.

•Refrigerant pipes are used to connect the indoor and outdoor units.

•Be careful not to crush or over bend the pipe in pipe bending.

•Refrigerant adjustment... If pipe length exceeds 25 ft. (7.5 m), additional refrigerant (R410A) charge is required.

(The outdoor unit is charged with refrigerant for pipe length up to 25 ft. [7.5 m])

				Limits
	Pipe length	MSZ/MSY-GE09/12/15NA			65 ft. (20 m) max.
			MSZ/MSY-GE18NA		100 ft. (30 m) max.
	Height difference	MSZ/MSY-GE09/12/15NA			40 ft. (12 m) max.
			MSZ/MSY-GE18NA		50 ft. (15 m) max.
	No. of bends				10 max.
			Up to 25 ft. (7.5 m)		No additional charge is required.
	Pipe length
			Exceeding 25 ft. (7.5 m)		Additional charge is required.
					(Refer to the table below.)
	Refrigerant to be		MSZ/MSY-GE09/12/15NA		1.62 oz each 5 ft. (30 g/m)
	added		MSZ/MSY-GE18NA		1.08 oz each 5 ft. (20 g/m)

1-4. INSTALLATION DIAGRAM

ACCESSORIES

Check the following parts before installation. <Indoor unit>

	(1)	Installation plate	1
		Attachment screws for the installa-
	(2)	tion plate	5
		4 × 25 mm
	(3)	Remote controller holder	1
		Screws for the remote controller
	(4)	holder	2
		3.5 × 16 mm (Black)
	(5)	Battery (AAA) for (6)	2
	(6)	Wireless remote controller	1
	(7)	Felt tape (For left or left-rear piping)	1
	(8)	Air cleaning filter	2
	FIELD-SUPPLIED PARTS
	(A)	Indoor/outdoor unit connecting wire*1	1
	(B)	Extension pipe	1
	(C)	Wall hole sleeve	1
	(D)	Wall hole cover	1
	(E)	Pipe attachment strap	2 to 5
	(F)	Screw for (E) 4 × 20 mm	2 to 5
	(G)	Piping tape	1
	(H)	Putty	1
		Drain hose
	(I)	(or soft PVC hose, 19/32 in. [15 mm]	2 to 5
		inner diameter or hard PVC pipe
		VP16)
	(J)	Refrigerant oil	1
	(K)	Power supply cord *1	1

Note:

*1 Place indoor/outdoor unit connecting wire (A) and power supply cord (K) at least 3 ft. (1 m) away from the TV antenna wire.

(54	more/	mm)	and	pipingspacer)
		(130
in.			for
	or
			left
1/8	mm)	in.	more	back	(using
-		1/8
		5
		-
2				left
			or
3/8in.(10mm) ormore

	3-7/8	in.
	(100
		mm)
	or
	more

Use the wall hole sleeve			Indoor unit	Wall hole cover (D)
(C) to prevent indoor/out-				Seal the wall hole
door connecting wire (A)				gap with putty (H).
from contacting metal			Wall hole	Attach the pipe to
parts in the wall and to			sleeve (C)
protect the wiring from				wall with pipe at-
rodents.				tachment strap (E).
			Cut off the	Pipe attachment
			extra length.	strap (E)
				Attachment screw (F)
4-3/8		in.
(110
	mm) or
more

After the leak test, apply insulating material tightly so that there is no gap.

When the piping is to be attached to a wall comprised of tin plate or metal netting, use chemically treated wooden piece 25/32 in. (20 mm) or thicker between the wall and the piping, or wrap insulation vinyl tape 7 to 8 turns around the piping.

To use existing piping, perform COOL operation for 30 minutes and pump down before removing the old air conditioner. Remake flare according to the dimension for new refrigerant.

<GE09/12/15>

*2 4 in. (100 mm) or more when front and sides of unit are clear

4	in.	(100
	or		mm)
		more

clear *2

			mm)
4	.(100
			more
in		or

<GE18>

	*2 20 in. (500 mm) or more when		*2
			clear
	front and sides of unit are clear
	4	in.
		or(100 mm)
		more

	.(100		mm)
4
		more
in
	or

		*3	14	in.	(350
.(200		mm)
				or	moremm)
in	more
8	or

*3 When any 2 sides of left, right and rear of unit are clear

Unit: inch

Unit: mm

		31-1/2				800
	5-15/16 19-11/16				150	500
		Air inlet	12-12-3/4			Air inlet
13-9/16	11-1/4			344.5	285	304-325
		1-9/16				40
2-3/8 × 13/16 slot		Air outlet		2-10 × 21 slot		Air outlet

Units should be installed by licensed contractor according to local code requirements.

	*3	14
	mm)		in.
.(500				(350
20	or		or
in	more			moremm)

*3 When any 2 sides of left, right and rear of unit are clear

		Unit: inch
	33-1/16
6-5/8	19-11/16
	Air inlet
15-14/32 13		14-3/16
	Air outlet
4-3/8 x 13/16 slot		1-9/16

			Unit: mm
		840
	169	500
		Air inlet
392	330		360
		Air outlet
	4-10 x 21 slot		40

Drain piping for outdoor unit

Install the unit horizontally.

Do not use drain socket in cold regions. Drain may freeze and make the fan stop.

The outdoor unit produces condensate during the heating operation. Select the installation place to ensure to prevent the outdoor unit and/or the grounds from being wet by drain water or damaged by frozen drain water.