Mitsubishi Electric MXZ-2D33VA, MXZ-2D40VA, MXZ-2D53VA, MXZ-2D53VAH Installation Manual

Split-type Air-Conditioner

MXZ-2D33VA

MXZ-2D40VA MXZ-2D53VA(H)

English is original.

Übersetzung des Originals

Traduction du texte d’origine

Installation Manual

For INSTALLER

•This manual only describes the installation of outdoor unit.

When installing the indoor unit, refer to the installation manual of indoor unit.

Installationsanleitung

Für INSTALLATEUR

•Diese Installationsanleitung gilt nur für die Installation des Außengerätes.

Zur Installation des Innengeräts siehe die Installationsanleitung für Innengeräte.

Notice d’installation

Destinée à l’INSTALLATEUR

•Cette notice ne décrit que l’installation de l’appareil extérieur.

Lors de l’installation de l’appareil intérieur, consultez la notice d’installation de cet appareil.

Vertaling van het	Installatiehandleiding	Voor de INSTALLATEUR
origineel	• Deze handleiding beschrijft alleen de installatie van de buitenunit.

Raadpleeg de installatiehandleiding van de binnenunit wanneer u deze installeert.

Traducción del original

Traduzione dell’originale

Μετάφραση του αρχικού

Tradução do original

Oversættelse af den originale tekst

Översättning från originalet

Orijinalin çevirisi

Перевод

оригинала

Manual de instalación

Para el INSTALADOR

•En este manual sólo se describe la instalación de la unidad exterior.

Para instalar la unidad interior, consulte el manual de instalación de dicha unidad.

Manuale per l’installazione

Per il TECNICO INSTALLATORE

•Questo manuale descrive solo l’installazione dell’unità esterna.

Per l’installazione dell’unità interna, fare riferimento al relativo manuale di installazione.

Εγχειρίδιο εγκατάστασης

Για τον ΤΕΧΝΙΚΟ

•Στο παρόν εγχειρίδιο περιγράφεται μόνο η εγκατάσταση της μονάδας εξωτερικού χώρου. Για την εγκατάσταση της μονάδας εσωτερικού χώρου, ανατρέξτε στο εγχειρίδιο εγκατάστασης της μονάδας εσωτερικού χώρου.

Manual de Instalação

Para o INSTALADOR

•Este manual descreve apenas a instalação da unidade exterior.

Quando proceder à instalação da unidade interior, consulte o manual de instalação da unidade interior.

Installationshåndbog

Til INSTALLATØREN

•Denne håndbog beskriver kun, hvordan udendørsenheden installeres. Vedrørende installation af indendørsenheden henvises til installationshåndbogen for indendørsenheden.

Installationsanvisning

För INSTALLATÖREN

•Denna installationsanvisning beskriver endast installation av utomhusenheten. Se den separata installationsanvisningen för inomhusenheten.

Kurulum Kılavuzu

TESİSATÇI İÇİN

•Bu kılavuzda yalnızca dış ünitenin kurulumu açıklanmaktadır.

İç ünite kurulum işlemini yaparken iç ünite kurulum kılavuzuna bakın.

Руководство по установке

Для МОНТАЖНИКА

•В данном руководстве приводится описание установки только наружного прибора. При установке внутреннего прибора см. руководство по установке внутреннего

прибора.

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<![if ! IE]>

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CONTENTS
1.	BEFORE INSTALLATION.............................................................	1
2.	OUTDOOR UNIT INSTALLATION................................................	3
3.	FLARING WORK AND PIPE CONNECTION...............................	3
4.	PURGING PROCEDURES, LEAK TEST, AND TEST RUN.........	4
5.	RELOCATION AND MAINTENANCE...........................................	5

Required Tools for Installation

Phillips screwdriver	Flare tool for R410A
Level	Gauge manifold for R410A
Scale	Vacuum pump for R410A
Utility knife or scissors	Charge hose for R410A
Torque wrench	Pipe cutter with reamer
Wrench (or spanner)
4 mm hexagonal wrench

1. BEFORE INSTALLATION

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

•Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.

•Be sure to observe the warnings and cautions specified here as they include important items related to safety.

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

WARNING (Could lead to death, serious injury, etc.)

nDo not install the unit by yourself (user).

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

nPerform the installation securely referring to the installation manual.

Incomplete installation could cause fire, 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 which can bear the weight of the unit.

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

nElectrical work should be performed by a qualified, experienced electrician, according to the installation manual. 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.

nDo not damage the wires by applying excessive pressure with parts or screws.

Damaged wires could cause fire or electric shock.

nBe sure to cut off the main power in case of setting up the indoor P.C. board or wiring works.

Failure to do so could cause electric shock.

nUse the specified wires to connect the indoor and outdoor units securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections. Do not extend the wires, or use intermediate connection.

Incomplete connecting and securing could cause fire.

nDo not install the unit in a place where inflammable gas may leak.

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

nDo not use intermediate connection of the power cord or the extension cord and do not connect many devices to one AC outlet.

It could cause a fire or an electric shock due to defective contact, defective insulation, exceeding the permissible current, etc.

nBe sure to use 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.

nWhen plugging the power supply plug into the outlet, make sure that there is no dust, clogging, or loose parts in both the outlet and the plug. Make sure that the power supply plug is pushed completely into the outlet.

If there is dust, clogging, 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.

nAttach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.

If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are not attached securely, it could result in a fire or an electric shock due to dust, water, etc.

nWhen 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.

nDo not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room.

If refrigerant comes in contact with a fire, harmful gas could be generated.Refrigerant leakage may cause suffocation. Provide ventilation in accordance with EN378-1.

nCheck that the refrigerant gas does not leak after installation has been completed.

If refrigerant gas leaks indoors, and comes into contact with the flame of a fan heater, space heater, stove, etc., harmful substances will be generated.

nUse appropriate tools and piping materials for installation.

The pressure of R410A is 1.6 times more than R22. Not using appropriate tools or materials and incomplete installation could cause the pipes to burst or injury.

nWhen 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. This could cause the pipes to burst or injury.

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

If the compressor is started before the refrigerant pipes are connected and when the stop valve is open, air could be drawn in and the pressure in the refrigeration cycle could become abnormally high. This could cause the pipes to burst or injury.

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

If fastened too tight, a flare nut may break after a long period and cause refrigerant leakage.

nThe unit shall be installed in accordance with national wiring regulations.

nEarth the unit correctly.

Do not connect the earth to a gas pipe, water pipe, lightning rod or telephone earth. Defective earthing could cause electric shock.

CAUTION

(Could lead to serious injury in particular environments when operated incorrectly.)

nInstall an earth leakage breaker depending on the installation place.

If an earth leakage breaker is not installed, it could cause electric shock.

nPerform the drainage/piping work securely according to the installation manual.

If there is defect in the drainage/piping work, water could drop from the unit, soaking and damaging household goods.

nDo not touch the air inlet or the aluminum fins of the outdoor unit.

This could cause injury.

nDo not install the outdoor unit where small animals may live.

If small animals enter and touch the electric parts inside the unit, it could cause a malfunction, smoke emission, or fire. Also, advise user to keep the area around the unit clean.

1-2. SPECIFICATIONS

	Power supply *1			Wire specifications *2		Pipe length and height difference *3, *4, *5, *6, *7, *8
Model	Rated	Fre-	Breaker	Power supply	Indoor/outdoor	Max. pipe length	Max. height	Max. no. of bends	Refrigerant adjust-
	Voltage	quency	capacity		connecting wire	per indoor unit /	difference *9	per indoor unit /	ment A *10
						for multi-system		for multi system
MXZ-2D33VA	230 V	50 Hz	10 A	3-core 1.0 mm2	4-core	15 m / 20 m	10 m	15 / 20	20 g/m
MXZ-2D40VA
			15 A	3-core 2.0 mm2	1.0/1.5 mm2	20 m / 30 m	15 m	20 / 30
MXZ-2D53VA(H)

*1 Connect to the power switch which has a gap of 3 mm or more when open to interrupt the source power phase. (When the power switch is shut off, it must interrupt all phases.)

*2 Use wires in conformity with design 60245 IEC 57. Use the indoor/outdoor connecting wire in conformity with the wire specifications specified in the installation manual of the indoor unit.

*3 Never use pipes with thickness less than specified. The pressure resistance will be insufficient.

*4 Use a copper pipe or a copper-alloy seamless pipe.

*5 Be careful not to crush or bend the pipe during pipe bending.

*6 Refrigerant pipe bending radius must be 100 mm or more.

*7 Insulation material : Heat resisting foam plastic 0.045 specific gravity

*8 Be sure to use the insulation of specified thickness. Excessive thickness may cause incorrect installation of the indoor unit and insufficient thickness may cause dew drippage.

*9 If the outdoor unit is installed higher than the indoor unit, max. height difference is reduced to 10 m.

*10 If pipe length exceeds 20 m, additional refrigerant (R410A) charge is required. (No additional charge is required for pipe length less than 20 m.) Additional refrigerant = A × (pipe length (m) - 20)

En-

1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS

If the diameter of connection pipe does not match the port size of outdoor unit, use optional different-diameter joints according to the following table.

			(Unit: mm (inch))
	Port size of outdoor unit		Optional different-diameter joints (port size of outdoor unit → diameter of connection pipe)
	MXZ-2D	Liquid / Gas	6,35 (1/4) → 9,52 (3/8) : PAC-493PI
			9,52 (3/8) → 12,7 (1/2) : MAC-A454JP
			9,52 (3/8) → 15,88 (5/8) : PAC-SG76RJ
	A , B UNIT	6,35 (1/4) / 9,52 (3/8)	12,7 (1/2) → 9,52 (3/8) : MAC-A455JP
			12,7 (1/2) → 15,88 (5/8) : MAC-A456JP
			Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit.

1-4. SELECTING THE INSTALLATION LOCATION

•Where it is not exposed to strong wind.

•Where airflow is good and dustless.

•Where rain or direct sunshine can be avoided as much as possible.

•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.

•When installing the unit, be sure to secure the unit legs.

•Where it is at least 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 some baffle boards.

Note:

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

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.

•To prevent exposure to wind, it is recommended to install a baffle

board on the air outlet side of the outdoor unit.

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

•Where flammable gas could leak.

•Where there is much machine oil.

•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.

1-5. INSTALLATION DIAGRAM

			ACCESSORIES
			Check the following parts before installation.
			(1)	Drain socket			1
		After the leak test, apply insulat-	PARTS TO BE PROVIDED AT YOUR SITE
		ing material tightly so that there is
		no gap.	(A)	Power supply cord*			1
			(B)	Indoor/outdoor unit connecting wire*			1
			(C)	Extension pipe			1
		When the piping is to be at-	(D)	Wall hole cover			1
	Open as a rule	tached to a wall containing metals	(E)	Piping tape			1
		(tin plated) or metal netting, use
	More than 500 mm			Extension drain hose
		a chemically treated wooden
	if the front and both
		piece 20 mm or thicker between	(F)	(or soft PVC hose, 15 mm inner			1
	sides are open
		the wall and the piping or wrap 7		diameter or hard PVC pipe VP16)
		to 8 turns of insulation vinyl tape					Little
		around the piping.	(G)	Refrigeration oil
		To use existing piping, perform					amount
		COOL operation for 30 minutes	(H)	Putty			1
		and pump down before removing
			(I)	Pipe fixing band			2 to 7
		the old air conditioner. Remake
		flare according to the dimension	(J)	Fixing screw for (I)			2 to 7
		for new refrigerant.	(K)	Wall hole sleeve			1
		More than 100 mm	(L)	Soft PVC hose, 15 mm inner di-			1
				ameter or hard PVC pipe VP16 for
		More than 200 mm if there are		drain socket (1)
		obstacles to both sides
	More than		* Note:
			Place indoor/outdoor unit connecting wire (B) and
	100 mm		power supply cord (A) at least 1 m away from the
			TV antenna wire.
			The “Q’ty” for (B) to (K) in the above table is quan-
			tity to be used per indoor unit.
		Outdoor unit installation
	Open as a rule		800
	More than 500 mm if the back,	More than 350 mm	500
	both sides and top are open	150
			Air inlet		<![if ! IE]> <![endif]>304~325
		Air inlet		<![if ! IE]> <![endif]>285		<![if ! IE]> <![endif]>344.5
			Air outlet			(Unit: mm)
		4-10 × 21 Oval holes

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

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1-6. DRAIN PIPING FOR OUTDOOR UNIT

Please perform the drain piping work only when draining from one place.

1)Provide drain piping before indoor and outdoor piping connection.

2)Connect the soft PVC hose (L) I.D.15 mm as shown in the illustration.

3)Make sure to provide drain piping with a downhill grade for easy drain flow.

Note:

Install the unit horizontally.

Do not use the drain socket (1) in the cold regions. Drain may freeze and it makes 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.

2. OUTDOOR UNIT INSTALLATION

2-1. CONNECTING WIRES FOR OUTDOOR UNIT

1)Remove the service panel.

2)Loosen terminal screw, and connect indoor/outdoor unit connecting wire (B) from the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix the wire to the terminal block securely so that no part of its core is appeared, and no external force is conveyed to the connecting section of the terminal block.

3)Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull the wires lightly to confirm that they do not move.

4)Perform 2) and 3) for each indoor unit.

5) Connect power supply cord (A).

6) Fix indoor/outdoor unit connecting wire (B) and power supply cord (A) with the cable clamps.

7) Close the service panel securely. Make sure that 3-2. PIPE CONNECTION is completed.

• After making connections between both power supply cord (A) and indoor/outdoor unit connecting wire (B), be sure to fix both cable and wire with cable clamps.

Indoor/outdoor unit connecting wire

<OUTDOOR UNIT>

Terminal block

Terminal block for

power supply

	POWER SUPPLY
UNIT	~/N 230 V 50 Hz
	UNIT
	<INDOOR UNIT>

(L) Soft PVC hose

(1) Drain socket

15 mm

35 mm

Lead wire

Terminal block for power supply

Service panel

•Be sure to attach each screw to its correspondent terminal when securing the cord and/or the wire to the terminal block.

•Make earth wire a little longer than others. (More than 35 mm)

•For future servicing, give extra length to the connecting wires.

3. FLARING WORK AND PIPE CONNECTION

3-1. FLARING WORK

1)Cut the copper pipe correctly with pipe cutter. (Fig. 1, 2)

2)Completely remove all burrs from the cut cross section of pipe. (Fig. 3)

•Aim the copper pipe downward while removing burrs to prevent burrs from dropping in the pipe.

3)Remove flare nuts attached to indoor and outdoor units, then put them on pipe having completed burr removal. (Not possible to put them on after flaring work.)

4)Flaring work (Fig. 4, 5). Firmly hold copper pipe in the dimension shown in the table. Select A mm from the table according to the tool selected.

5)Check

•Compare the flared work with Fig. 6.

•If flare is noted to be defective, cut off the flared section and do flaring work again.

	Pipe diameter	Nut		A (mm)		Tightening torque
			Clutch	Clutch	Wing nut
	(mm)	(mm)	type tool	type tool	type tool	N•m	kgf•cm
			for R410A	for R22	for R22
	ø6.35 (1/4”)	17			1.5 to 2.0	13.7 to 17.7	140 to 180
	ø9.52 (3/8”)	22	0 to 0.5	1.0 to 1.5		34.3 to 41.2	350 to 420
	ø12.7 (1/2”)	26			2.0 to 2.5	49.0 to 56.4	500 to 575
	ø15.88 (5/8”)	29				73.5 to 78.4	750 to 800

	Good	No good
	Copper
	pipe
	Tilted Uneven Burred
	Fig. 1	Fig. 2
	Flaring tool
Burr	Copper pipe
	Spare reamer
	Pipe cutter
	Clutch type	Wing nut type
	Fig. 3	Fig. 4
		Inside is shin-
	Smooth all	ing without any
	around	scratches.
Die	Copper pipe
		Even length
Flare nut		all around
	Fig. 5	Fig. 6

En-

3-2. PIPE CONNECTION

1)Apply a thin coat of refrigeration oil (G) to the flared ends of the pipes and the pipe connections of the outdoor unit.

2)Align the center of the pipe with that of the pipe connections of the outdoor unit, then hand tighten the flare nut 3 to 4 turns.

3)Tighten the flare nut with a torque wrench as specified in the table.

•Over-tightening may cause damage to the flare nut, resulting in refrigerant leakage.

•Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite.

3-3. INSULATION AND TAPING

1)Cover piping joints with pipe cover.

2)For outdoor unit side, surely insulate every piping including valves.

3)Using piping tape (E), apply taping starting from the entry of outdoor unit.

•Stop the end of piping tape (E) with tape (with adhesive agent attached).

•When piping have to be arranged through above ceiling, closet or where the temperature and humidity are high, wind additional commercially sold insulation to prevent condensation.

WARNING

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

CAUTION

When there are the ports which are not used, make sure their nuts are tightened securely.

4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN

4-1. PURGING PROCEDURES AND LEAK TEST

1)Remove service port cap of stop valve on the side of the outdoor unit gas pipe. (The stop valves are fully closed and covered in caps in their initial state.)

2)Connect gauge manifold valve and vacuum pump to service port of stop valve on the gas pipe side of the outdoor unit.

3)Run the vacuum pump. (Vacuumize for more than 15 minutes.)

4)Check the vacuum with gauge manifold valve, then close gauge manifold valve, and stop the vacuum pump.

5)Leave as it is for one or two minutes. Make sure the pointer of gauge manifold valve remains in the same position. Confirm that pressure gauge shows -0.101 MPa [Gauge] (-760 mmHg).

6)Remove gauge manifold valve quickly from service port of stop valve.

7)Fully open all stop valves on the gas pipe and the liquid pipe. Operating without fully opening lowers the performance and this causes trouble.

8)Refer to 1-2., and charge the prescribed amount of refrigerant if needed. Be sure to charge slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the system may be changed and affect performance of the air conditioner.

9)Tighten cap of service port to obtain the initial status.

10)Leak test

*4 to 5 turns

*Close

*Open

Hexagonal wrench

Precautions when using the control valve

Service port

Control valve

Open

Close

A

Body

Stop valve		–0.101 MPa		Compound pressure
for GAS		(–760 mmHg) gauge (for R410A)
		Stop valve		Pressure gauge
				(for R410A)
		cap (Torque
				Gauge manifold
		19.6 to 29.4
		N•m, 200 to		valve (for R410A)
		300 kgf•cm)		Handle High
		Handle
	Stop valve Low			Charge hose
	for LIQUID
				(for R410A)
Service port cap			Vacuum pump
(Torque 13.7 to 17.7 N•m,			(for R410A)
140 to 180 kgf•cm)

When attaching the control valve to the service port, valve core may deform or loosen if excess pressure is applied. This may cause gas leak.

When attaching the control valve to the service port, make sure that the valve core is in closed position, and then tighten part A. Do not tighten part A or turn the body when valve core is in open position.

Charge hose (for R410A)

4-2. GAS CHARGE

Perform gas charge to unit.

1)Connect gas cylinder to the service port of stop valve.

2)Perform air purge of the pipe (or hose) coming from refrigerant gas cylinder.

3)Replenish specified amount of the refrigerant, while operating the air conditioner for cooling.

Note:

In case of adding refrigerant, comply with the quantity specified for the refrigerating cycle.

CAUTION:

When charging the refrigerant system with additional refrigerant, be sure to use liquid refrigerant. Adding gas refrigerant may change the composition of the refrigerant in the system and affect normal operation of the air conditioner. Also, charge the liquid refrigerant slowly, otherwise the compressor will be locked.

To maintain the high pressure of the gas cylinder, warm the gas cylinder with warm water (under 40°C) during cold season. But never use naked fire or steam.

Indoor	Union		Stop valve
		Liquid pipe
unit
		Gas pipe
Indoor	Union		Outdoor
		Liquid pipe	unit
unit
		Gas pipe

Refrigerant gas	Service port
cylinder
operating valve
(for R410A)	Gauge manifold
	valve (for R410A)

Charge hose (for R410A)

Refrigerant gas cylinder for R410A with siphon

Refrigerant (liquid)

Electronic scale for refrigerant charging

En-