Mitsubishi Electronics MS-GA50VB, MSH-GA50VB User Manual

SG79Y756H01

SPLIT-TYPE AIR CONDITIONERS

English

Models

MS-GA50VB MSH-GA50VB

INSTALLATION MANUAL

[FLARE CONNECTION TYPE]

1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY

Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR

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SAFETY” before installing the air conditioner.

Be sure to observe the cautions speciﬁ ed here as they include important items

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related to safety.

The indications and meanings are as follows.

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WARNING

Could lead to death, serious injury, etc.

CAUTION

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

After reading this manual, be sure to keep it together with the OPERATING

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INSTRUCTIONS in a handy place on the customer’s site.

WARNING

Q Do not install the unit by yourself (customer).

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

Install the unit securely in a place which can bear the weight of the unit.

When installed in an insufﬁ cient strong place, the unit could fall causing injury.

Q Use the speciﬁ ed wires to connect the indoor and outdoor units securely

and attach the wires ﬁ rmly to the terminal block connecting sections so the stress of the wires is not applied to the sections.

Incomplete connecting and ﬁ xing could cause ﬁ re.

Q Do 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 ﬁ re or an electric shock due to defective contact, defective insulation, exceeding the permissible current, etc.

Q Check that the refrigerant gas do not leak after installation has

completed.

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

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

Q Perform the installation securely referring to the installation manual.

Incomplete installation could cause a personal injury due to ﬁ re, electric shock,

the unit falling or leakage of water.

Q Perform electrical work according to the installation manual and be sure

to use an exclusive circuit.

If the capacity of the power circuit is insufﬁ cient or there is incomplete electrical work, it could result in a ﬁ re or an electric shock.

Q Attach the electrical cover to the indoor unit and the service panel to the

outdoor unit securely.

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

Q Be sure to use the part provided or speciﬁ ed parts for the installation

work.

The use of defective parts could cause an injury or leakage of water due to a ﬁ re, an electric shock, the unit falling, etc.

Q Be sure to cut off the main power in case of setting up the indoor electronic

control P.C. board or wiring works.

It could cause an electric shock.

Q The appliance shall be installed in accordance with national wiring

regulations.

Q When installing or relocating the unit, make sure that no substance other

than the speciﬁ ed refrigerant (R410A) enters the refrigerant circuit.

Any presence of foreign substance such as air can cause abnormal pressure

rise or an explosion.

HFC

utilized

R410A

Series

When installing an MXZ series outdoor unit, refer to the MS and MSH type manual for indoor unit set up.

Q Earth the unit.

Do not connect the earth to a gas pipe, water pipe, lightning rod or telephone

earth. Defective earthing could cause an electric shock.

Q Do not install the unit in a place where an inﬂ ammable gas leaks.

If gas leak and accumulate in the area surrounding the unit, it could cause an

explosion.

Q Install an earth leakage breaker depending on the installation place (Where

it is humid).

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

Q Perform the drainage/piping work securely according to the installation

manual.

If there is a defect in the drainage/piping work, water could drop from the unit

and household goods could be wet and damaged.

Q Fasten a ﬂ are nut with a torque wrench as speciﬁ ed in this manual.

When fastened too tight, a ﬂ are nut may broken after a long period and cause

a leakage of refrigerant.

IMPORTANT NOTES

TO COMPLY WITH THE REQUIREMENT OF AUSTRALIAN STANDARD AS/NZS 3000 ELECTRICAL INSTALLATIONS (Wiring Rules), THE ELECTRICAL WIRING REQUIRED BETWEEN THE INDOOR AND OUTDOOR UNITS MUST BE INSTALLED BY A LICENCED ELECTRICAL CONTRACTOR.

CAUTION

2. SELECTING THE INSTALLATION LOCATION

2-1 INDOOR UNIT

Where airﬂ ow is not blocked.

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Where cool air spreads over the entire room.

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Maximum refrigerant piping length between indoor unit and outdoor unit is 25 m and

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the difference of height of both units is 10 m.

Rigid wall without vibration.

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Where it is not exposed to direct sunshine.

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Where easily drained.

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At a distance 1 m or more away from your TV and radio. Operation of the air conditioner

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interferes with radio or TV reception in areas where reception is weak.

An ampliﬁ er may be required for the affected device.

In a place as far away as possible from ﬂ uorescent and incandescent lights (so the

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infrared remote control can operate the air conditioner normally).

Where the air ﬁ lter can be removed and replaced easily.

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2-2 OUTDOOR UNIT

Where it is not exposed to strong wind.

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Where airﬂ ow is good and dustless.

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Where it is not exposed to rain and direct sunshine.

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

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

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or vibration.

Where there is no risk of combustible gas leakage.

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When installing the unit at a high level, be sure to ﬁ x the unit legs.

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Where it is at least 3 m away from the antenna of TV set or radio. Operation of the

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air conditioner interferes with radio or TV reception in areas where reception is weak. An ampliﬁ er may be required for the affected device.

Install the unit horizontally.

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Please install it in an area not affected by snowfall or blowing snow. In areas with

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heavy snow, please install a canopy, a pedestal and/or some bafﬂ e boards.

Note:

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

CAUTION

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

Where ﬂ ammable gas could leak.

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Where there is much machine oil.

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Salty places such as the seaside.

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Where sulﬁ de gas is generated such as a hot spring.

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Where there is high-frequency or wireless equipment.

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2-3 WIRELESS REMOTE CONTROLLER MOUNTING

Place of mounting

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• Where it is easy to operate and easily visible.

• Where children can not touch.

Mounting

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Select a position about 1.2 m above the ﬂ oor, check that signals from the remote

controller are surely received by the indoor unit from that position (‘beep’ or ‘beepbeep’ receiving tone sounds). After that, attach remote controller holder 3 to a pillar or wall and set the wireless remote controller 6.

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

INSTALLATION DIAGRAM & ACCESSORIES

FLARED CONNECTIONS

This unit has ﬂ ared connections on both indoor and outdoor sides.

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Remove the outdoor units valve cover, then connect the pipe.

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

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

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Limits

Pipe length 25 m max.

Height difference 10 m max.

No. of bends 10 max.

Refrigerant adjustment ... If pipe length exceeds 7 m, additional refrigerant

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(R410A) charge is required. (The outdoor unit is charged with refrigerant for pipe length up to 7 m.)

Up to 7 m No additional charge is required.

Pipe length

Refrigerant to be added

Exceeding 7 m

20 g/m × (refrigerant piping length (m) -7)

ACCESSORIES

Check the following parts before installation. <Indoor unit>

Installation plate 1

Installation plate ﬁ xing screw 4 × 25 mm 7

Remote controller holder 1

3 4 Fixing screw for 3 3.5 × 16 mm (Black)

Battery (AAA) for remote controller 2

Wireless remote controller 1

Felt tape (Used for left or left-rear piping) 1

Air Cleaning ﬁ lter 2

Additional charge is required. (Refer to the table below.)

PIPING PREPARATION

1 Speciﬁ cations Use the refrigerant pipes that meet the following speciﬁ cations.

Pipe

For liquid 6.35 8

For gas 12.7 8

• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm. Never use any pipe with a thickness less than 0.8 mm, as the pressure resistance is insufﬁ cient.

2 Ensure that the 2 refrigerant pipes are insulated to prevent condensation. 3 Refrigerant pipe bending radius must be 100 mm or more.

Be sure to use the insulation of speciﬁ ed thickness. Excessive thickness may cause incorrect installation of the indoor unit and lack of thickness may cause dew drippage.

0 mm

or more

72 mm or more

100 mm or more for left and left

back piping (using spacer)

Outside diameter Insulation thickness

mm mm

Insulation material

Heat resisting foam plastic 0.045 speciﬁ c gravity

CAUTION

Decide the installation position using mark on the installation plate indicating the indoor unit size as reference.

Be careful the drain hose is not raised.

PART TO BE PROVIDED AT YOUR SITE

Optional extension pipe

Indoor/outdoor unit connecting wire

(2-core 1.0 mm

Extension pipe

Wall hole sleeve

Wall hole cover

Pipe ﬁ xing band

(The quantity depends on the pipe length.) Fixing screw for E 4 × 20 mm

(The quantity depends on the pipe length.)

Piping tape

Putty

Drain hose

(or soft PVC. hose, 15 mm inner dia.)

Refrigeration oil

Power supply cord (See the table in 5 INDOOR/OUTDOOR WIRE CONNECTION

AND OUTDOOR POWER SUPPLY CORD CONNECTION for the cord size.)

mm 0

9 2

-2.0 mm2)

850mm

Air outlet

500mm

mm01

Slot 4-10 mm × 21 mm

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

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side may be exposed directly to wind.

To prevent exposure to wind, install the outdoor unit with its

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air inlet side facing the wall.

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

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bafﬂ e board on the air outlet side of the outdoor unit.

2 to 5

mm 8

mm013

mm81

00 mm or more

00 mm or m

ore

Note: Do not obstruct

the air outlet.

7 mm or more

00 mm or more

100 mm or more

200 mm or more

Piping can be directed towards rear, right, downward, left or left-rear directions.

Rear side Right

Rear

Downward Left-rear

Lock the catch.

from the ﬂ oor

1800 mm or more

Front

Left

Separate the 2 connecting pipes and

350 mm or more

apply insulation individually.

8 mm thickness thermal insulation plastic

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

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

4. INDOOR UNIT INSTALLATION

4-1 FIXING OF INSTALLATION PLATE

Find a structural material (such as a stud) in the wall and ﬁ x installation plate

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horizontally.

Bind the line to the center hole.

0 mm or more

(off the wall)

Installation plate ﬁ xing screw 2 4 × 25 mm

To prevent the installation plate from vibrating, be sure to ﬁ x the holes as indicated by the arrows .

Installation plate 1

Plumb

When bolts recessed in the concrete wall are to be utilized, secure the installation plate 1 using 11 × 20 · 11 × 26 oval hole (450 mm pitch). If the recessed bolt is too long, change it for a shorter one available in the market.

4-2 WALL HOLE DRILLING

1 Determine the wall hole position. 2 Drill a 75 mm hole so that outside can be lower than inside. 3 Insert the wall hole sleeve C.

Positioning of the holes on the wall

Installation plate 1

Insert the scale.

Align the scale with the line.

Repeat the same procedure for the left hole.

Wall hole

75 mm dia.

(Indoor side)

(Wall hole cross section)

Be sure to use wall hole sleeve C to prevent the outdoor connecting wires from contacting with metal part in the wall and to prevent damage by rat in case the wall is hollow.

Wall hole sealing and ﬁ xing pipe to wall

Wall hole cover D

Seal the wall hole gap with putty H.

Fix the pipe to wall with pipe ﬁ xing band E.

100 mm

Hole of dia. 75 mm

Wall thickness

Wall hole sleeve C

72 mm or more 100 mm or more for left and left back piping (using spacer)

00 mm or more

the wall)

(off

1800 mm or more from the ﬂ oor

Align the plumb line with the mark .

One scale

Cut with 1 extra scale length.

Cut off the extra length. Pipe ﬁ xing

band E

4-3 CONNECTING WIRE SPECIFICATIONS

Use special room air conditioning circuit.

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Power supply cord length (Lead to left/Lead to right)

Indoor/outdoor unit connecting wire Speciﬁ cation

Take out power supply cord from the left or right bottom corner of the indoor unit.

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Cable 2-core 1.0 mm Design 60245 IEC 57.

1 m/2 m

, in conformity with

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.) (Rated Voltage/Frequency : 230 V/50 Hz) (Input capacity Main switch/Fuse : 10 A) (This plug has to be the one meets the Standards.)

WARNING

Never cut the indoor and outdoor unit connecting wire and connect it to other wires. It may cause a ﬁ re.

Do not bundle the spare wire, but put it as shown below.

4-4 INDOOR AND OUTDOOR CONNECTING WIRE

CONNECTION

You can connect indoor/outdoor lead wire without removing the front panel.

1 Open the front panel. 2 Remove one screw holding the electrical cover, then remove the cover. 3 Remove the VA clamp and the cord clamp. 4 Pass the indoor/outdoor unit connecting wire from the back of the indoor unit and

process the end of the wire, then connect it to the terminal block.

5 Replace the ﬁ xture and electrical cover securely.

Indoor terminal block

Indoor/outdoor unit connecting wire A

VA clamp

Never fail to hook the left claw on the wire ﬁ xture to secure indoor/ outdoor unit connecting wire A.

Securely push the wire into the terminal block until no part of its core is appeared.

WARNING

Use the indoor/outdoor unit connecting wire that meets the Standards to connect

the indoor and outdoor units and ﬁ x the wire to the terminal block securely so that no external force is conveyed to the connecting section of the terminal block. Incomplete connection or ﬁ xing of the wire could result in a ﬁ re.

Attach the VA clamp securely. If it is attached incorrectly, it could result in a ﬁ re

or an electric shock due to dust, water, etc.

ELECTRICAL COVER

Fixing screws

Indoor unit

Wall hole sleeve C

Fixing screw F

MSH type

Loosen terminal screw.

Terminal block

15 mm

35 mm

Lead wire

3 N

Indoor terminal block

Indoor/outdoor unit connecting wire A 2-core 1.0 mm

Outdoor terminal block

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