Mitsubishi Electric MXZ-2A20NA-1 Installation Manual download pdf (Page 3)

Front (blowing) side open

As long as space like the one

showninthegurecanbe

maintained, it does not mat

ter if there are obstacles in

three directions (but top side

isopen).

4.

Obstacles on front and rear side only

Theunitcanbeusedbyat-

taching an optional outdoor

blowingguide(MAC-889SG)

(but both sides and top are

open).

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)]

Outdoor unit

Indoor unit

09/12 15/17

Pipe size

(liquid/gas)

6.35(1/4)/9.52(3/8) 6.35(1/4)/12.7(1/2)

A UNIT

6.35(1/4)/9.52(3/8) - / - - / MAC-454JP

B UNIT

FREE SPACE REQUIRED AROUND OUTDOOR UNIT

1-5. SELECTING THE INSTALLATION LOCATION

• Where it is not exposed to strong wind.

• Whereairow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 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amplier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bafe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ammablegascouldleak.

• Where there is much machine oil.

• Saltyplacessuchastheseaside.

• Wheresuldegasisgeneratedsuchasahotspring.

• Wherethereishigh-frequencyorwirelessequipment.

100(3.94)

or more

500(19.68)ormore

Blowingguide(MAC-889SG)

500(19.68)ormore

200(7.87)

or more

350(13.78)

or more

100(3.94)

or more

100(3.94)

or more

500(19.68)ormore

100(3.94)

or more

Service space

350(13.78)ormore

500(19.68)

or more

• When installing the unit in an area that is enclosed on four sides such

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 airow or there is a possibility of becoming

short cycle, install an outlet guide and make sure there is enough

space behind the rear side of the air inlet.

Note:

Makesurenottoinstallseveraloutdoorunitssidewaysnexttoeach

other.

Window

More than

100(3.94)

Lessthan1,200(47.3)ofthefrontsurfaceside

More than 200

(7.87)

More than

350(13.78)

More than

200(7.87)

More than

200(7.87)

Top side obstacles

When there is an obstacle behind the

rearsideonly,itdoesnotmatterif

there is an obstacle over the top side

asshowninthegurebelow.

Obstacles on front (blowing) side only

In this case, the rear, both sides and

top should be open.

Service space

Keeptheservicespaceasshowninthegurebelowformainte-

nance.

500(19.68)

or more

100(3.94)ormore

[Unit:mm(inch)]

JG79A039H01_En.indd 3 5/9/2008 2:23:41 PM

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Mitsubishi Electric MXZ-2A20NA-1 Installation Manual Page 3

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