Mitsubishi electric Mr. slim mxz-2b20na User manual

MITSUBISHI

47%

ELECTRIC

Split-type

Air-Conditioner

MXZ-2B20NA

INSTALLATION

MANUAL

°

Refer

to

the

installation

manual

of

each

indoor

unit

for

indoor

unit

in-

stallation.

ATTENTION

This

manual

mentions

how

to

install

only

the

outdoor

unit

MXZ-2B20NA.

As

for

the

way

of

installation

for

indoor

unit,

please

refer

to

the

installation

manual

being

attached

each

indoor

unit.

The

installation

manual

details

the

suggested

installation

method.

Any

structural

alterations

necessary

for

installation

must

comply

with

local

building

code

requirements.

1.

BEFORE

INSTALLATION

o.oo

etree

rane

rrieee

tae

eeranae

2

2.

OUTDOOR

UNIT

INSTALLATION

o.oo

renee

5

3.

FLARING

WORK

AND

PIPE

CONNECTION...

eee

6

4.

PURGING

PROCEDURES,

LEAK

TEST,

AND

TEST

RUN...

ee

7

5.

RELOCATION

AND

MAINTENANCE.

0.00.0...

cece

tener

erences

tene

ee

eeneeee

8

FOR

INSTALLER

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

safety.

¢

After

reading

this

manual,

be

sure

to

keep

it

together

with

the

OPERATING

INSTRUCTIONS

for

future

reference.

A

WARNING

(Could

lead

to

death,

serious

injury,

etc.)

Deo

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

pur-

chased

the

unit

or

a

qualified

installer.

&@

Perform

the

installation

securely

referring

to

the

installation

manual.

Incomplete

installation

could

cause

fire

or

electric

shock,

injury

due

to

the

unit falling,

or

leakage

of

water.

@

When

installing

the

unit,

use

appropriate

protective

equipment

and

tools

for

safety.

Failure

to

do

so

could

cause

injury.

@

Install

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.

@

Perform

electrical

work according

to

the

installation

manual

and

be

sure

to

use

an

exclusive

circuit.

Do

not

connect

other

electrical

appli-

ances

to

the

circuit.

lf

the

capacity

of

the

power

circuit

is

insufficient

or

there

is

incomplete

electrical

work,

it

could

result

in

a

fire

or

an

electric

shock.

&

Do

not

damage

the

wires

by

applying

excessive

pressure

with

parts

or

screws.

Damaged

wires could

cause

fire.

—

Be

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.

@

Use

the

specified

wires

to

connect

the

indoor

and

outdoor

units

se-

curely

and

attach

the

wires

firmly

to

the

terminal

block

connecting

sections

so

the

stress

of

the

wires

is

not

applied

to

the

sections.

Incomplete

connecting

and

securing

could

cause

fire.

&

Do

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.

Do

not

use

intermediate

connection

of

the

power

cord

or

the

exten-

sion

cord

and

do

not

connect

many

devices

to

one

AC

outlet.

It

could

cause

a

fire

or

an

electric

shock

due

to

defective

contact,

defec-

tive

insulation,

exceeding

the

permissible

current,

etc.

—@

Be

sure

to

use

the

parts

provided

or

specified

parts

for

the

installa-

tion

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.

@

When

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

complete-

ly

into

the outlet.

lf

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.

A

CAUTION

@

Ground

the

unit

correctly.

Do

not

connect

the

ground

to

a

gas

pipe,

water

pipe,

lightning

rod

or

telephone

ground.

Defective

grounding

could

cause

electric

shock.

@

Install

an

ground

leakage

breaker

depending

on

the

installation

place.

lf

an

ground

leakage

breaker

is

not

installed,

it

could

cause

electric

shock.

@

Perform

the

drainage/piping

work

securely

according

to

the

installa-

tion

manual.

lf

there

is

defect

in

the

drainage/piping

work,

water

could

drop from

the

unit,

soaking

and

damaging

household

goods.

(Could

lead

to

serious

injury

in

particular

environments

when

operated

incorrectly.)

@

Attach

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.

@

When

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

re-

frigerant

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.

@

Do

not

discharge

the

refrigerant

into

the

atmosphere.

If

refrigerant

leaks

during

installation,

ventilate

the

room.

lf

refrigerant

comes

in

contact

with

a

fire,

harmful

gas

could

be

gener-

ated.

@

Check

that

the

refrigerant

gas

does

not

leak

after

installation

has

been

completed.

lf

refrigerant

gas

leaks

indoors,

and

comes

into

contact

with

the

flame

of

a

fan

heater,

space

heater,

stove,

etc.,

harmful

substances

will

be

generated.

@

Use

appropriate

tools

and

piping

materials

for

installation.

The

pressure

of

R410A

is

1.6

times

more

than

R22.

Not

using

appropri-

ate

tools

or

materials

and

incomplete

installation

could

cause

the

pipes

to

burst

or

injury.

@

When

pumping

down

the

refrigerant,

stop

the

compressor

before

disconnecting

the

refrigerant

pipes.

lf

the

refrigerant

pipes

are

disconnected

while

the

compressor

is

run-

ning

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.

@

When

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

pres-

sure

in

the

refrigeration

cycle

could

become

abnormally

high.

This

could

cause

the

pipes

to

burst

or

injury.

@

Fasten

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.

@

The

unit

shall

be

installed

in

accordance

with

national wiring

regu-

lations.

@

Do

not

touch

the

air

inlet

or

the

aluminum

fins

of

the

outdoor

unit.

This

could

cause

injury.

@

Do

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.

REQUIRED

TOOLS

FOR

INSTALLATION

Phillips

screwdriver

Torque

wrench

Level

Wrench

(or

spanner)

Scale

Utility

knife

or

scissors

1-3.

SPECIFICATIONS

Flare

tool

for

R410A

4

mm

(5/32

in.)

hexagonal

wrench

Gauge

manifold

for

R410A

Vacuum

pump

for

R410A

Charge

hose

for

R410A

Pipe

cutter

with

reamer

Power

supply

Pipe

length

and

height

difference

*2, *3, *4,

*8

Model

Rated

Frequenc

Max.

pipe

length

per

indoor

Max.

no.

of

bends

per

in-

|

Refrigerant

adjustment

A

Voltage

4 y

unit

/

for

multi-system

height

difference

door

unit

/

for

multi

system

*5

MXZ-2B20NA

Soy

60

Hz

25 m

(82

ft)

/

50

m

(164

ft)

15

m

(49

ft)

25/50

20

g/m

(1.08

oz

each

5

ft)

*1

Never

use

pipes

with

thickness

less

than

specified.

The

pressure

resist-

ance

will

be

insufficient.

*2

Use

a

copper

pipe

or

a

copper-alloy

seamless

pipe.

*3

Be

careful

not

to

crush

or

bend

the

pipe

during

pipe

bending.

*4

Refrigerant

pipe

bending

radius

must

be

100

mm

(4 in.)

or

more.

*5

If

pipe

length

exceeds

40

m

(131

ft),

additional

refrigerant

(R410A)

charge

is

required.

(No

additional

charge

is

required

for

pipe

length

less

than

40

m

(131

ft).)

Additional

refrigerant

(m)

=A

*

(pipe

length

(m)

-

40)

Additional

refrigerant

(ft)

=

A

x

4bipe

len

+

ft)

=

131

*6

Insulation

material

:

Heat

resisting

foam

plastic

0.045

specific gravity

*7

Be

sure

to

use

the

insulation

of

specified

thickness.

Excessive

thickness

may

cause

incorrect

installation

of

the

indoor

unit

and

insufficient

thick-

ness

may

cause

dew

drippage.

*8

If

the

outdoor

unit

is

installed

higher

than

the

indoor

unit,

max.

height

difference

is

reduced

to

10

m

(33

ft).

1-4.

SELECTING

PIPE

SIZE

AND

OPTIONAL

DIFFERENT-DIAMETER

JOINTS

The

diameter

of

connection

pipes

differs

according

to

the

type

and

capacity

of

indoor

units.

Match

the

diameters

of

connection

pipes

for

indoor

and

outdoor

units

according

to

the

following

table.

°

If

the

diameter

of

connection

pipes

does

not

match

the

diameter

of

pipe

end

connections,

use optional

different-diameter

joints.

[mm

(inch)]

Indoor

unit

Outdoor

unit

=

09

or

less/12

15

ipe

size

(liquid

/

gas) 6.35

(1/4)

/

9.52

(3/8)

6.35

(1/4)

/

12.7

(1/2)

AUNIT

B

UNIT

6.35

(1/4)

/

9.52

(3/8)

~/-

~/

MAC-454JP

1

-5.

SELECTING

THE

INSTALLATION

LOCATION

Where

it

is

not

exposed

to

strong

wind.

Note:

°

Where

airflow

is

good

and

dustless.

e

Where

rain

or

direct

sunshine

can

be

avoided

as

much

as

possible.

e

Where

neighbours

are

not

annoyed

by

operation

sound

or

hot

air.

¢

Where

rigid

wall

or

support

is

available

to

prevent

the

increase

of

op-

eration

sound

or

vibration.

°

Where

there

is

no

risk

of

combustible

gas

leakage.

¢

When

installing

the

unit

at

a

high

level,

be

sure

to

secure

the

unit

legs.

°

Where

it

is

at

least

3

m

(9.84

ft)

away

from

the

antenna

of

TV

set

or

radio.

Operation

of

the

air

conditioner

may

interfere

with

radio

or

TV

re-

ception

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.

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.

*

Salty

places

such

as

the

seaside.

°

Where

sulfide

gas

is

generated

such

as

a

hot

spring.

°

Where

there

is

high-frequency

or

wireless

equipment.

FREE

SPACE

REQUIRED

AROUND

OUTDOOR

UNIT

1.

Top

side

obstacles

2.

Front

(blowing)

side

open

When

there

is

an

obstacle

behind

the 100

(3.94)

or

more

As

long

as

space

like

the

one

rear

side

only,

it

does

not

matter

if

|

shown

in

the

figure

can

be

there

is

an

obstacle

over

the top

side

maintained,

it

does

not

mat-

200

(7.87)

as

shown

in

the

figure

below.

500

(19.68)

l

ter

if

there

are

obstacles

in

—

ormore

of

more

three

directions

(but

top

side

dE

Mal

is

open).

100

(3.94)

350

(13.78)

Wy

or

more

|

-—

| |

or

more

VT

T 1

3.

Obstacles

on front

(blowing)

side

only

———

4,

Obstacles

on front

and

rear

side

only

In

this

case,

the

rear,

both

sides

and

The

unit

can

be

used

by

at-

top

should

be

open.

taching

an

optional

outdoor

LLLLLLLLL

ELLs

ann

4)

blowing

guide

(MAC-889SG)

Co)

(but

both

sides

and

top

are

[|

Oy

|

500

(19.68)

or

more

open).

——

500

(19.68)

or

more

VIATMEMTTTTTTTT

TT),

7

Blowing

guide

(MAC-889SG)

5,

Service

space

Keep

the

service

space

as

shown

in

the

figure

below

for

mainte-

*

When

installing

the

unit

in

an

area

that

is

enclosed

on

four

sides

such

nance.

as

a

verandah,

be

sure

to

leave

move

than

200

mm

(7.87

in.)

behind

the

unit

as

shown.

¢

When

there

is

a

lack

of

airflow

or

there

is

a

possibility

of

becoming

100

(3.94)

short

cycle,

install

an

outlet

guide

and

make

sure

there

is

enough

or

more

space

behind

the

rear

side

of

the

air inlet.

Service

space

Note:

===.

Make

sure

not

to

install

several

outdoor

units

sideways

each

500

(19.68)

or

more

other.

AG

L.

100

(3.94)

Window

or

more

a

ae

2?

|

777

pons

7

More

than

200

“Y

500

(19.68)

|

—

(7.87)

4

More

th

350

(13.78)

or

more

5

g-

More

than

or

more

(13.78)

1

.

Got

|More

than

Loot

7!

Y),

350

(13.78)

.

200

(7.87)

oe

Z

—=ii4-—

ore

than

200

(7.87)

Less

than

1,200

(47.3)

of

the

front

surface

side

[Unit:

mm

(inch)

1-6.

INSTALLATION

DIAGRAM

ing

material

tightly so that

there

is

When

the

piping

is

to

be

at-

tached

to

a

wall

containing

metals

(tin

plated)

or

metal

netting,

use

a

chemically

treated

wooden

piece

20

mm

(7.9

in.)

or

thicker

between

the

wail

and

the

piping

or

wrap

7

to

8

turns

of

insulation

vinyl

tape

around

the

piping.

7

To

use

existing

piping.

perform

MX7-2B20NA

' |

More

than

500

mm

COOL

operation

for

30

minutes

\

L,

(19.69

in.)

if

the

front

and

pump

down

before

removing

and

both

sides

are

open

fe

the

old

air

conditioner.

Remake

flare

according

to

the

dimension

for

new

refrigerant.

:

More

than

“S100

mm

(3.94

in.)

More

than

200

mm

(7.87

in.)

if

there

are

obstacles

to

both

sides

More

than

100

}-

mm

(3.94

in.)

i

I

p.

«—(F)

Open

as

a

rule

More

than

500

mm

(19.69

in.)

if

the

back,

both

sides

and

top

are

open

More

than

350

mrn

(13.78

in.)

Units

should

be

installed

by

licensed

contractor

according

to

local

code

requirements.

Outdoor

unit

installation

835

(32.87)

166

(6.53)|

500

(19.69)

a

Air

inlet

5

&

Air

inlet

G>

330

(13.0)

361

(14.21)

396

(15.59)

|

Paar

outlet

4-10(0.39)

x

21(0.83)

Oval

holes

[Unit:

mm

(inch)]

1-7.

MOUNTING

ARRANGEMENT

OF

DRAIN

SOCKET

Please

perform

the

drain

piping

work

only

when

draining

from

one

place.

1)

Choose

one

hole

to

discharge

drain

and

install

the

drain

socket

to

the

hole.

2)

Close

the

rest

of

the

holes

with

the

drain

caps.

PARTS

TO

BE

PROVIDED

AT

YOUR

SITE

After

the

leak

test,

apply

insulat-

/

no

gap.

(A)

|Power

supply

cord*

4

(B)

|Indoor/outdoor

unit

connecting

wire*

1

(C)

|Extension

pipe

(Refer

to

1-4.)

4

(D)

|

Wall

hole

cover

1

(E)

|Piping

tape

4

Extension

drain

hose

(F) (or

soft

PVC

hose,

15

mm

(19/32

1

in.)

inner

diameter

or

hard

PVC

pipe

VP

16)

(G)

|Refrigeration

oil

ote

(H)

|Putty

1

(I)

[Pipe

fixing

band

2to7

(J)

[Fixing

screw

for

(1)

2to7

(K)

{Wall

hole

sleeve

4

Soft

PVC

hose,

15

mm

(19/32

in.)

(L)

Jinner

diameter

or

hard

PVC

pipe

4

VP16

for

drain

socket

*

Note:

Place

indoor/outdoor

unit

connecting

wire

(B)

and

power

supply

cord

(A)

at

least

1

m

(39.4

in.)

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.

3)

Connect

a

vinyl

hose

of

15

mm

(19/32

in.)

in

the

inside

diameter

on

the

market

with

the

drain

socket

and

lead

drain.

Note:

Install

the

unit

horizontally.

Do

not

use

the

drain

socket

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

unitand/

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

*

Be sure

to

use special

circuits

for

room

air

conditioner.

*

Wiring

work

should

be

based

on

applicable

technical

standards.

*

Wiring

connections

should

be

made

following

the

diagram.

*

Screws

should

be

tightened

so

they

won't

loosen.

ELECTRICAL

SPECIFICATIONS

OUTDOOR

UNIT

MXZ-2B20NA

Power

supply

(V,

PHASE,

Hz)

208/230,

1,

60

Max.

Fuse

size

(time

delay)

(A)

20

Min.

Circuit

Ampacity

(A)

15

Fan

motor

(F.L.A)

0.96

Compressor

REA)

10.4

(L.R.A)

15

Contro! voltage

Indoor

unit-Remote

controller

:

(Wireless)

Indoor

unit-Outdoor

unit

:

DC12-24V

1)

Remove

the

service

panel.

2)

Fix

the

conduit

connector

to

conduit

cover

with

lock

nut

then

secure

it

against

unit

with

screws.

3)

Fix

the

conduit

cover

to

the

outdoor

unit

then

secure

it

with

screws.

4)

Connect

power

supply

cord

and

indoor/outdoor

connecting

wire

to

the

ter-

minal

block.

(Leave

some

slack

in

wires

to

allow

easier

servicing.)

Grounding

terminal

Conduit

5)

Close

the

service

panel

securely.

Make

sure

that

3-2.

PIPE

CONNECTION

DBs

/

cover

is

completed.

.

‘

—

as

|

S

Lock

nut

Connector

Remark:

=

*

A

disconnect

switch

should

be

required.

Check

the

local

code.

MPCOR

UNTE]

INPOOR

UN

TEE

**

Use

aring

tongue

terminal

in

order

to

connect

a

ground

wire

to

terminal.

erminal

bloc

erminal

bloc

AN

tS

Grounding

:

,

|

Grounding

terminal

**

:

A

Ai

terminal

**

*

i

a

208/230

V

AC

Disconnect

208/230

V

AC

Disconnect

iphase

60

Hz

switch

*

iphase

60

Hz

switch

*

Grounding Grounding

terminal

**

terminal

**

4

&

O

Oo

Terminal

SiS283

S1/S2S3

block

1

Terminal

block

Terminal

block,

UNITA

UNIT

B

OUTDOOR

UNIT

Pe

L

fe

Ground

rower

SUPP

ea

VAC

|e

Connect

wires

to

the

matching

numbers

of

terminals.

phase

ewires

2

¢

Be

sure

to

attach

each

screw

to

its

correspondent

terminal

when

securing

the

cord

and/or

the

wire

to

the

terminal

block.

CONNECTING

WIRES

AND

CONNECTING

GROUND

WIRE

°

Use

solid

conductor

AWG14

or

stranded

conductor

AWG14.

*

Use

double

insulated

copper

wire

with

600

V

insulation.

°

Use

copper

conductors

only.

Follow

local

electrical

code.

POWER

SUPPLY

CABLE

AND

GROUND

WIRE

°

Use

solid

or

stranded

conductor

AWG

14.

°

Use

copper

conductors

only.

*

Follow

local

electrical

code.

Z\

WARNING:

Use

the

indoor/outdoor

unit

connecting

wire

that

meets

the

Standards

to

connect

the

indoor

and

outdoor

units

and

fix

the

wire

to

the

terminal

block

securely

so

that

no

external

force

is

conveyed

to

the

connecting

section

of

the

terminal

block.

An

incomplete

connection

or

fixing

of

the

wire

could

result

in

a

fire.

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)

Completely

remove

all

burrs

from

the cut

cross

section

of

pipe.

(Fig.

3)

Good

No

good

*

Put

the

end

of

the

copper

pipe

to

downward

direction

as

you

Copper

907

ps

Levene

.

remove

burrs

in

order

to

avoid

to

let

burrs

drop

in

the

piping.

(Se

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.)

Tilted

Uneven

Burred

4)

Flaring

work

(Fig.

4,

5).

Firmly

hold

copper

pipe

in

the

dimension

Fig.

4

Fig.

2

shown

in

the

table.

Select

A

mm

from

the

table

according

to

the

tool

you

use.

Flaring

tool

5)

Check

a

Copper

pipe

S

*

Compare

the

flared

work

with

Fig.

6.

Burr

Spare

reamer DO

¢

If

flare

is

noted

to

be

defective,

cut

off

the

flared

section

and

do

[|

0

he

cutter

&

[|

és

flaring

work

again.

| |

Clutch

type

Wing

nut

type

Fig.

3

Fig.

4

A

inside

is

shin-

Smooth

all

ing

without

any

around

\

scratches.

.

ae

,

Lt"

Copper

pipe

‘,

Die

“S\

Even

length

*

all

around

Flare

nut

Fig.

5

Fig.

6

A

inch

Tightening

t

Pipe

diameter

Nut

[mm

(inch)]

ightening

torque

[mm

(inch)]

(mm)

Clutch

type

tool

Clutch

type

tool

Wing

nut

type

tool

Nem

kgfeem

ftlb

for

R410A

for

R22

for

R22

26.35

(1/4)

17

1.51020

13.7

to

17.7}

140

to

180

10to

13

29.52

(3/8)

22

0to0.5

1.0

to

1.5

(0.06

to

0.08)

34.3

to.

41.2}

350

to

420

|

25

to

30

912.7

(4/2)

26

(0.

to

0.02)

(0.04

to

0.06)

2.0

to

2.5

49.0

to

56.4]

500

t0

575

|

36

to

42

215.88

(5/8)

29

(0.08

to

1.0)

73.5

to

78.4}

750

to

800

|

54

to

58

3-2.

PIPE

CONNECTION

¢

Fasten

flare

nut

with

a

torque

wrench

as

specified

in

the

table.

¢

When

fastened

too

tight,

flare

nut

may

brake

after

a

long

period

and

cause

refrigerant

leakage.

Outdoor

unit

connection

Connect

pipes

to

stop

valve

pipe

joint

of

the

outdoor

unit

in

the

same

manner

applied

for

indoor

unit.

*

For

tightening,

use

a

torque

wrench

or

spanner

and

use

the

same

tightening

torque

applied

for

indoor

unit.

Ve

PGCE

When

installing

the

unit,

securely

connect

the

refrigerant

pipes

before

starting

the

compressor.

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

at-

tached).

¢

When

piping

have

to

be

arranged

through

above

ceiling,

closet

or

where

the

temperature

and

humidity

are

high,

wind

additional

com-

mercially

sold

insulation

to

prevent

condensation.

4.

PURGING

PROCEDURES,

LEAK

TEST,

AND

TEST

RUN

—0.101MP.

1.

PURGING

PROCEDURES

AND

LEAK

TEST

Stop

valve cap

GAQIMEa

|

Compound

pressure

i : :

*4

to

5

turns

(Torque

19.6

to

gauge

(for

R410A)

1)

Remove

service

port

cap

of

stop

valve

on

the

side

of

the

outdoor

unit

49

4

Nem

200

to

(-30

in.Hg)]

gas

pipe.

(The

stop

valve

will

not

work

in

its

initial

state

fresh

out

of

Close

300

kgfecm,

15

to

Pressure

gauge

(for

R410A)

the

facto!

Y:

totally

closed

wit

cap

oO

)

©

Gauge

manifold

2)

Connect

gauge

manifold

valve

and

vacuum pump

to

service

port

of

‘ny

stop

valve

on

the

gas

pipe side

of

the

outdoor

unit.

3)

Run

the

vacuum

pump.

(Vacuumize

for

more

than

15

minutes.)

?

Hexagonal!

wrench

22

ft-lb)

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

pointer

gauge

mani-

Charge

hose

Service

port

cap

fold

valve

remains

in

the

same

position.

Confirm

that

pressure

gauge

(Torque

13.7

to

shows

—0.101

MPa

[Gauge]

[-760

mmHg(-30

in.Hg)].

17.7

Nem,

140

to

~

6)

Remove

gauge

manifold

valve

quickly

from

service

port

of

stop

180

kgfecm,

10

to

MUTT

valve.

13

ftelb)

Stop

valve

bait

Vacuum

pump

7)

After

refrigerant pipes

are

connected

and

evacuated,

fully

open

all

for

GAS

(for

R410A)

stop

valves

on

both

sides

of

gas

pipe

and

liquid

pipe.

Operating

with-

out

fully

opening

lowers

the

performance

and

this

causes

trouble.

Precautions

when

usin

.

8)

Refer

to

1-3.,

and

charge

the

prescribed

amount

of

refrigerant

if

the

control

valve

9

When

attaching

the

control

valve

to

needed.

Be

sure

to

charge

slowly

with

liquid

refrigerant.

Otherwise,

composition

of

the

refrigerant

in

the

system

may

be

changed

and

af-

fect

performance

of

the

air

conditioner.

, { 4

9)

Tighten

cap

of

service

port

to

obtain

the

initial

status.

i

eS

<Service

port

10)

Leak

test

form

or

loosen

if

excess

pressure

is

applied.

This

may

cause

gas

leak,

<a

When

attaching

the

control

valve

to

==

the

service

port,

make

sure

that

the

Charge

hose

valve core

is

in

closed

position,

and

(forR410A)

then

tighten

part

A.

Do

not

tighten

part

A

or

turn

the

body

when

valve

Fy

"

core

is

in

open

position.

4-2.

GAS

CHARGE

Union

Perform

gas

charge

to

unit.

Stop

valve

1)

Connect

gas

cylinder

to

the

service

port

of

stop

valve.

Liquid

pipe

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.

Outdoor

unit

Note:

Indoor

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

composi-

tion

of

the

refrigerant

in

the

system

and

affect

normal

operation

of

the

air

conditioner.

Also,

charge

the

system

slowly,

otherwise

the

compressor

will

be

locked.

To

maintain

the

high

pressure

of

the

gas

cylinder,

warm

the

gas

cylinder

Refrigerant

gas

with

warm

water

[under

40°C(140°F)]

during

cold

season.

But

never

use

cylinder

naked

fire

or

steam.

operating

valve

(for

R410A)

\

Stop

valve

with

service

port

Gas

pipe

~<a

Refrigerant

gas

cylinder

for

R410A

with

siphon

Refrigerant

(liquid)

L>—<—J

~toneee

Flectronic

scale

for

refrigerant

charging

4-3.

TEST

RUN

*

Be sure

to

perform

the

test

run

for

each

unit.

Make

sure

each

indoor

unit

operates

properly

following

the

installation

manual

attached

to

the

unit.

*

If

you

perform

the

test

run

for

all

indoor

units

at

once,

you

cannot

detect

any

erroneous

connection,

if

any,

of

the

refrigerant

pipes

and

the

indoor/outdoor

unit

connecting

wires.

About

the

restart

protective

mechanism

Once

the

compressor

stops,

the

restart

preventive

device

operates

so

the

compressor

will

not

operate

for

3

minutes

to

protect

the

air

conditioner.

4-4.

EXPLANATION

TO

THE

USER

*

Using

the

OPERATING

INSTRUCTIONS,

explain

to

the

user

how

to

use

the

air

conditioner

(how

to

use

the

remote

controller,

how

to

remove

the

air

fil-

ters,

how

to

remove

or

put

the

remote

controller

in

the

remote

controller

holder,

how

to

clean,

precautions

for

operation,

etc.)

*

Recommend

the

user

to

read

the

OPERATING

INSTRUCTIONS

carefully.

5.

RELOCATION

AND

MAINTENANCE

5-1.

PUMPING

DOWN

When

relocating

or

disposing

of

the

air

conditioner,

pump

down

the

system

following

the

procedure

below

so

that

refrigerant

is

not

released

into

the

atmos-

phere.

1)

Connect

the

gauge

manifold

valve

to

the

service

port

of

the

stop

valve

on

the

gas

pipe side

of

the

outdoor

unit.

2)

Fully

close

the

stop

valve

on

the

liquid

pipe side

of

the

outdoor

unit.

3)

Close

the

stop

valve

on

the

gas

pipe

side

of

the

outdoor

unit

almost

completely

so

that

it

can

be

easily

closed

fully

when

the

pressure

gauge

shows

0

MPa

[Gauge]

(0

Ibffin.”

[0

kgf/cm’).

4)

Start

the

emergency

COOL

operation.

To

start

the

emergency

operation

in

COOL

mode,

disconnect

the

power

supply

plug

and/or

turn

off

the

breaker.

After

15

seconds,

connect

the

power

supply

plug

and/or

turn

on

the

breaker,

and

then

press

the

E.O.

SW

once.

(The

emergency

COOL

operation

can

be

performed

continuously

for

up

to

30

minutes.)

5)

Fully

close

the

stop

valve

on

the

gas

pipe

side

of

the

outdoor

unit

when

the

pressure

gauge

shows

0.05

to

0

MPa

[Gauge]

(approx.

7.25

to

0

Ibffin’

[0.5

to

0

kgf/cm’]).

6)

Stop

the

emergency

COOL

operation.

To

stop

operation,

press

the

E.O.

SW

several

times

until

all

LED

lamps

turn

off.

Refer

to

operating

instructions

for

details.

A

WARNING

When

pumping

down

the

refrigerant,

stop

the

compressor

before

disconnecting

the

refrigerant

pipes.

The

compressor

may

burst

if

air

etc.

get

into

it.

4

MITSUBISHI

47%

ELECTRIC

Climatiseur

Mini-Split

MXZ-2B20NA

MANUEL

D’INSTALLATION

°

Se

reporter

au

manuel

d’installation

de

chaque

appareil

intérieur

pour

procéder

a

leur

installation.

ATTENTION

Le

présent

manuel

décrit

la

procédure

a

suivre

pour

installer

’unité

externe

uni-

quement

MXZ-2B20NA.

Pour

en

savoir

plus

sur

linstallation

des

unités

internes,

consulter

le

manuel

d’installation

accompagnant

chacune

de

ces

unités.

Le

manuel

d’installation

détaille

la

méthode

d’installation

suggérée.

Toute

altération

structurelle

requise

pour

installation

doit étre

conforme

aux

exi-

gences

du

code

du

batiment

local.

1.

AVANT

LINSTALLATION

oo

retire

ree

tnit

etre

eens

10

2.

INSTALLATION

DE

L’APPAREIL

EXTERIEUR........c.cceccccccceccseeesesteteeeteeees

13

3.

TRAVAUX

D'EVASEMENT

ET

RACCORDEMENT

DES

TUYAU®X

0...

14

4.

PROCEDURES

DE

PURGE,

TEST

DE

CONTROLE

DES

FUITES

ET

ESSAI

DE

FONCTIONNEMENT

wees

ceeeeeeeeeeeeeeeeeeeeeeseeeeeseeeeesnee

eraser

nreneenneaeeaeeeneaes

15

5.

DEPLACEMENT

ET

ENTRETIEN

.0000.

cece

eect

rene

eee eee

ete

eee

eeeennaees

16

DESTINE

A

L’INSTALLATEUR

10

1.

AVANT

VINSTALLATION

1-1.

INSTRUCTIONS

A

RESPECTER

A

TOUT

MOMENT

PAR

MESURE

DE

SECURITE

*

Veuillez

lire

les

“INSTRUCTIONS

A

RESPECTER

A

TOUT

MOMENT

PAR

MESURE

DE

SECURITE’

avant

de

procéder

a

installation

du

climatiseur.

*

Veuillez

respecter

scrupuleusement

les

mises

en

garde

contenues

dans

ce

manuel

car

elles

concernent

des

points

essentiels

a

la

sécurité.

°

Aprés

avoir

lu

ce

manuel,

veuillez

le

conserver

avec

les

INSTRUCTIONS

DE

FONCTIONNEMENT

de

l'appareil

pour

pouvoir

la

consulter

ultérieurement.

ON

M3

ages

&

N’installez

jamais

Punité

seul

(utilisateur).

Une

installation

incompléte

peut

étre

a

l’origine

d’un

incendie,

d’une

électrocution,

de

blessures

suite

a

la

chute

de

l'appareil

ou

de

fuites

d'eau.

Consulter

un

revendeur

local

ou

un

installateur

agréé.

&

Exécuter

les

travaux

d’installation

en

toute

sécurité

conformément

aux

instructions

du

manuel

d’installation.

Une

installation

incompléte

peut

étre

a

l’origine

d’un

incendie,

d’une

électrocution,

de

blessures

suite

a

la

chute

de

l'appareil

ou

de

fuites

d’eau.

&

Lors

delinstallation

de

Pappareil,

utiliser

équipement

de

protection

et

les

outils

adéquats,

par

mesure

de

sécurité.

Le

non-respect

de

ces

recommandations

peut

étre

a

l’origine

de

blessures.

&

Par

mesure

de

sécurité,

installer

Pappareil

dans

un

endroit

capable

de

supporter

son

poids.

Si

l'appareil

est

installé

dans

un

endroit

incapable

de

supporter

son

poids,

il

pourrait

tomber

et

blesser

quelqu’un.

&

Exécuter

les

travaux

d’électricité

en

toute

sécurité

conformément

aux

ins-

tructions

du

manuel

d’installation

et

prévoir

un

circuit

électrique

réservé

au

climatiseur.

Ne

brancher

aucun

autre

appareil

électrique

sur

le

circuit

du

climatiseur.

Un

circuit

électrique

de

capacité

insuffisante

ou

une

installation

incorrecte

peuvent

étre

a

lorigine

d’un

incendie

ou

d'une

électrocution.

&

Pour

éviter

toute

détérioration,

veillez

4

ce

que

les

piéces

et

les

vis

n’exercent

pas

de

pression

excessive

sur

les

cables.

Des

cables

endommagés

pourraient

provoquer

un

incendie.

&

Toujours

couper

Palimentation

principale

lors

de

installation

de

la

carte

a

circuits

imprimés

du

panneau

de

commande

de

lunité

interne

ou

lors

dune

intervention

sur

le

cablage

électrique.

Le

non-respect

de

ces

recommandations

peut

étre

a

l’origine

d’une

électrocu-

tion.

@

Utiliser

les

cables

spécifiés pour

raccorder

en

toute

sécurité

les

unités

interne

et

externe

et

fixer

les

cables

solidement

aux

sections

de

rac-

cordement

des

blocs

de

sorties

de

fagon

4

ce

qu’ils

n’exercent

aucune

pression

sur

les

sections

de

raccordement.

Un

branchement

incomplet

et

non

sécurisé

peut

provoquer

un

incendie.

&

Ne

pas

installer

l'appareil

dans

un

endroit

exposé

4

des

fuites

de

gaz

inflammable.

La

fuite

et

accumulation

de

gaz

autour

de

l'appareil

peut

entrainer

des

risques

d’explosion.

&

Ne

pas

utiliser de

raccord

intermédiaire

ou

de

rallonge

pour

brancher

fe

cordon

d’alimentation

et

ne

pas

brancher

plusieurs appareils

4

une

méme

prise

secteur.

Un

mauvais

contact,

une

isolation

insuffisante,

un

courant

trop

fort,

etc.

peuvent

entrainer

des

risques

d’incendie

ou

d’électrocution,

etc.

@

Veiller

a

utiliser

les

pieces

fournies

ou

spécifiées

dans

le

manuel

tors

des

travaux

d’installation.

L’utilisation

de

piéces

défectueuses

peut

étre

a

l’origine

de

blessures

corporelles

ou

d'une

fuite

d’eau

suite

4

un

incendie,

une

électrocution,

la

chute

de

l'appareil,

etc.

i

Au

moment

de

brancher

la

fiche

d’alimentation

dans

la

prise

secteur,

veiller

4

dépoussiérer

et

nettoyer

la

fiche

et

la

prise

en

contrélant

qu’aucun

élément

n’est

desserré.

S’assurer

que

ta

fiche

d’alimentation

est

enfoncée

a

fond

dans

la

prise

secteur.

Ne

pas

raccorder

le

cable

de

terre

a

un

tuyau

de

gaz,

une

conduite

d'eau,

un

paratonnerre

ou

le

cable

de

terre

d’un

téléphone.

Une

mise

a

la

terre

incorrecte

risquerait

de

provoquer

une

électrocution.

&

Installer

un

disjoncteur

de

fuites

a

la

terre en

fonction

du

lieu

d’installation.

L'absence

de

disjoncteur

de

fuites

a

la

terre

peut

étre

a

!'origine

d'une

électrocution.

@

Réaliser

les

travaux

de

vidange/tuyauterie

conformément

aux

instruc-

tions

de

la

notice

d’installation.

Si

les

travaux

de

vidange/tuyauterie

ne

sont pas

réalisés

correctement,

de

l'eau

pourrait

s’écouler

et

endommager

le

mobilier

qui

se

trouve

sous

l'appareil.

(Peut

entrainer

ia

mort,

des

blessures

graves,

etc.)

A

PRECAUTION

(Peut

provoquer

des

blessures

graves

dans

certains

environnements

sil

appareil

n'est

pas

utilisé

correctement

)

&

Raccorder

correctement

Punité

a

la

terre.

La

présence

de

poussiére,

de

saleté

ou

d’éléments

desserrés

dans

la

fiche

d’alimentation

ou

la

prise

secteur

peut

étre

a

l’origine

d'une

électrocution

ou

d’un

incendie.

Contréler

la

fiche

d’alimentation

et

remplacer

les

éléments

desserrés

éventuels.

Fixer

correctement

le

couvercle

du

boitier

électrique

de

l

unité

interne

et

le

panneau

de

service

de

lunité

externe.

Si

le

couvercle

du

boitier

électrique

de

l’unité

interne

et/ou

le

panneau

de

service

de

l’unité

externe

sont mal

fixés,

ils

risquent

de

provoquer

un

incendie

ou

une

électrocution

en

raison

de

la

poussiére,

de

l'eau,

etc.

présentes

dans

le

circuit.

Lors

de

installation,

du

déplacement

ou

de

lentretien

de

l'appareil,

veiller

a

ce

qu’aucune

substance

autre

que

le

réfrigérant spécifié

(R410A)

ne

pénétre

dans

le

circuit

de

réfrigération.

La

présence

d’une

substance

étrangére,

comme

de

lair

dans

le

circuit,

peut

provoquer

une

augmentation

anormale

de

la

pression

et

causer

une

explosion,

voire

des

blessures.

L’utilisation

de

réfrigérant

autre

que

celui

qui

est

spéciflé

pour

le

systeme

provoquera

une

défaillance

mécanique,

un

mauvais

fonctionnement

du

systéme,

ou

une

panne

de

l'appareil.

Dans

le

pire

des

cas,

la

sécurité

du

produit

pourrait

étre

gravement

mise

en

danger.

Ne

libérez

pas

le

réfrigérant

dans

atmosphere.

En

cas

de

fuite

de

rétri-

gérant

pendant

l

installation,

aérez

la

piéce.

Tout

contact

entre

le

réfrigérant

et

une

flamme

pourrait

provoquer

l’émission

de

gaz toxiques.

Ala

fin

de

Pinstallation,

aucune

fuite

de

réfrigérant

ne

doit étre

présente

sur

le

circuit.

En

cas

de

fuite

de

réfrigérant

dans

une

piéce,

et

si

le

réfrigérant

entre

en

contact

avec

la

partie

chauffante

d’un

appareil

de

chauffage

a

ventilation,

chauffage

d’appoint,

poéle,

etc.,

des

substances

toxiques

peuvent

se

dégager.

Utiliser

les

outils

et

Péquipement

de

tuyauterie

adaptés

4

Pinstallation.

La

pression

du

refrigérant

R410A

est

1,6

fois

supérieure

a

celle

du

R22.

Lutilisation

d’outils

ou

d’équipements

inadaptés

et

une

installation

incompléte

peuvent

provoquer

I’éclatement

des

tuyaux

et

blesser

quelqu’un.

Pendant

lopération

d’aspiration

du

réfrigérant,

arréter

le

compresseur

avant

de

débrancher

les

tuyaux

de

réfrigérant.

Si

les

tuyaux

de

réfrigérant

sont

débranchés

avant

l’arrét

du

compresseur

et

si

le

robinet

d’arrét

est

ouvert,

de

l’air

pourrait

étre

aspiré

et

la

pression

du

cycle

de

réfrigération

pourrait

monter

de

fagon

anormale.

Les

tuyaux

pourraient

éclater

et

blesser

quelqu’un.

Pendant

installation

de

Pappareil,

brancher

correctement

les

tuyaux

de

réfrigérant

avant

de

lancer

le

compresseur.

Si

le

compresseur

démarre

avant

le

branchement

des

tuyaux

de

réfrigérant

et

si

le

robinet

d’arrét

est

ouvert,

de

l’air

pourrait

étre

aspiré

et

la

pression

du

cycle

de

réfrigération

pourrait

monter

de

fagon

anormale.

Les

tuyaux

pourraient

éclater

et

blesser

quelqu’un.

Fixer

un

écrou

évasé

avec

une

clé

dynamométrique

comme

indiqué

dans

ce

manuel.

Si

l’écrou

évasé

est

trop

serré,

il

pourrait

se

rompre

au

bout

de

plusieurs

années

et

provoquer

une

fuite

de

réfrigérant.

L’installation

de

Pappareil

doit étre

conforme

aux

normes

électriques

nationales.

Ne

toucher

ni

4

Pentrée

d’air

ni

aux

ailettes

en

aluminium

de

Punité

externe.

Risque

de

blessures.

Ne

pas

installer

Punité

externe

4

proximité

de

Phabitat

d’animaux

de

petite

taille.

Si

des

animaux

de

petite

taille

pénétrent

dans

l’unité

et

entrent

en

contact

avec

les

composants

électriques,

ils

pourraient

provoquer

un

dysfonctionnement,

des

émissions

de

fumée

ou

un

incendie.

!I

convient

également

de

conseiller

a

l'utilisateur

de

nettoyer

réguliérement

la

périphérie

de

l'unité.

1-2.

OUTILS

NECESSAIRES

A

L’INSTALLATION

Tournevis

Phillips

Niveau

Régle

graduée

Couteau

tout

usage

ou

paire de

ciseaux

Clé

dynamométrique

1-3.

FICHE

TECHNIQUE

Clé

a

ouverture

fixe

(ou

clé

simple)

Clé

hexagonale

de

4

mm

(5/32

in.)

Outil

d’'évasement

pour

le

modéle

R410A

Tubulure

de

jauge

pour

le

modéle

R410A

Pompe

a

vide

pour

le

modéle

R410A

Tuyau

de

charge

pour

le

modéle

R410A

Coupe-tuyau

avec

alésoir

Alimentation

Longueur

des

tuyaux

et

différence

de

hauteur

*2, *3, *4,

*8

Modéle

Tension

;

Longueur

max.

des

tuyaux

Difference

Nombre

max.

de

coudes

par

a

.

nomi-

|

Fréquence

|

par

appareil

intérieur

/

pour

de

hauteur

max

appareil

intérieur

/

pour

sys-

|

Dosage

du

réfrigérant

A*5

nale

systéme

a

plusieurs

appareils

,

téme

a

plusieurs

appareils

MXZ-2B20NA

Sao

60

Hz

25 m

(82

ft)

/

50 m

(164

ft)

15

m

(49

ft)

25/50

20

g/m

(1,08

once

tous

les

5 ft)

*1

Nutilisez

jamais

des

tuyaux

dont

l’épaisseur

est

inférieure

a

celle

recom-

mandée.

Leur

résistance

a

la

pression

serait

insuffisante.

*2

Utilisez

un

tuyau

en

cuivre

ou

en

alliage

de

cuivre

sans

soudure.

*3

Veillez

a

ne

pas

écraser

ou

tordre

le

tuyau

lors

du

cintrage.

*4

Le

rayon

du

cintrage

d'un

tuyau

de

réfrigérant

doit

étre

de

100

mm

(4 in.)

minimum.

*5

Sila

longueur

du

tuyau

dépasse

40

m

(131

ft),

une

quantité

supplémentaire

de

réfrigérant

(R410A)

doit

étre

ajoutée.

(Aucune

quantité

supplémentaire

n’est

nécessaire

pour

une

longueur

de

tuyau

inférieure

a

40

m

(131

ft).)

Quantité

supplémentaire

de

réfrigérant

(m)

=

A

x

(longueur

de

tuyau

(m)

-

40)

Quantité

supplémentaire

de

réfrigérant

(ft)

=

A

*

longueur

de

“

au

(ft)

-

131

*6

Matériau

d'isolation

:

mousse

plastique

résistante

a

la

chaleur

d'une

den-

sité

de

0,045

*7

Utilisez

toujours

un

matériau

isolant

de

l’épaisseur

spécifiée.

Une

isolation

trop

épaisse

pourrait

étre

a

l’origine

d'une

installation

incorrecte

de

l’unité

interne

alors

qu'une

isolation

trop

fine

pourrait

provoquer

des

fuites.

*8

Si

l'appareil

extérieur

est

plus

haut

que

l'appareil

intérieur,

la

différence

de

hauteur

max.

est

limitée

a

10

m

(33

ff).

Mitsubishi Electric Mr. Slim MXZ-2B20NA User manual

Popular Air Conditioner manuals by other brands