background image

Indoor unit

Wall hole 
sleeve (C)

Cut off the 
extra length.

Pipe fixing band 
(E)

Be sure to use wall 
hole sleeve (C) to 
prevent indoor/
outdoor connect-
ing wire (A) from 
contacting metal 
parts in the wall and 
to prevent damage 
by rodents in case 
the wall is hollow.

Wall hole cover (D)

Seal the wall hole 
gap with putty (H).

Fix the pipe to wall 
with pipe fixing 
band (E).

Fixing screw 
(F)

100 mm 

or more

350 mm 

or more

100 mm 

or more

500 mm 
or more

500 mm or 

more

1-4. INSTALLATION DIAGRAM

ACCESSORIES

Check the following parts before installation.
<Indoor unit>

(1) Drain hose *

1

(2) Remote controller holder

1

(3)

Fixing screw for (2) 3.5 × 16 mm 
(Black)

2

(4) Pipe cover

1

(5) Band

2

(6) Battery (AAA) for (12)

2

(7) Indoor unit mounting bracket

1

(8) Fixing screw for (7) 4 × 25 mm

5

(9) Wood screw for indoor unit fixation

4

(10) Washer of (9)

4

(11) Felt tape (For left or left-rear piping)

1

(12) Wireless remote controller

1

(13) Air cleaning filter

1

* Note:

 The Drain hose is connected to the unit.

PARTS TO BE PROVIDED 
AT YOUR SITE

(A) Indoor/outdoor unit connecting wire*

1

(B) Extension pipe

1

(C) Wall hole sleeve

1

(D) Wall hole cover

1

(E) Pipe fixing band

2 to 5

(F) Fixing screw for (E) 4 × 20 mm

2 to 5

(G) Piping tape

1

(H) Putty

1

(I)

Drain hose 
(or soft PVC hose, 15 mm inner 
diameter or hard PVC pipe VP16)

1

(J) Refrigeration oil

1

(K) Power supply cord*

1

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

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

When the piping is to 
be attached to a wall 
containing metals (tin 
plated) or metal net-
ting, 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.
To use existing pip-
ing, perform COOL 
operation for 30 
minutes and pump 
down before removing 
the old air conditioner. 
Remake flare accord-
ing to the dimension 
for new refrigerant.

2.  INDOOR UNIT INSTALLATION

* Note:

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

Air inlet

Air outlet

Outdoor unit installation

4-10 mm × 21 mm slot

840 mm

500 mm

169 

mm

40 mm

392 mm

330 mm

360 mm

IMPORTANT NOTES  

To comply with the requirements 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.
 

150 mm or below  from the floor

100 mm or more

100 mm or more

100 mm or more

Wall

Outdoor 
side

2-2. HOLE DRILLING

1) Determine the wall hole position.
2) Drill a dia. 75 mm hole. The outdoor side should be
 

 5 to 7 mm lower than the indoor side.

3) Insert wall hole sleeve (C).

2-1. FIXING OF INDOOR UNIT MOUNTING BRACKET

•  Find a structural material (such as a stud) in the wall and fix bracket (7) horizontally 

with fixing screws (8).

•  To prevent bracket (7) from vibrating, be sure to install the fixing screws in the holes 

indicated by [->] in the illustration. For added support, fixing screws may also be in-
stalled in other holes.

FOR RIGHT DOWNWARD OR LEFT DOWNWARD PIPING
(The following figure is a view of the bottom of the indoor unit from above.)

FOR REAR OR LEFT-REAR PIPING
(The following figure is a front view of the indoor unit installation location.)

FOR LEFT PIPING

FOR RIGHT PIPING

When the 
unit is 
installed on 
the wall.

When the unit is 
installed on the floor.

HOLE POSITIONS

ø75mm 

5 - 7 mm

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.

Содержание MFZ-FB50VA

Страница 1: ...ompressor 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 be come abnormally high This could cause the pipes to burst or injury N 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 ref...

Страница 2: ...inutes and pump down before removing the old air conditioner Remake flare accord ing to the dimension for new refrigerant 2 INDOOR UNIT INSTALLATION Note Place indoor outdoor unit connecting wire A and power supply cord K at least 1 m away from the TV antenna wire Air inlet Air outlet Outdoor unit installation 4 10 mm 21 mm slot 840 mm 500 mm 169 mm 40 mm 392 mm 330 mm 360 mm IMPORTANT NOTES To com...

Страница 3: ...If the horizontal bars will block the lower air outlet use a stand etc to adjust the height of the indoor unit If the upper or lower air outlet is blocked the air conditioner will not be able to cool or warm the room well Do not block the receiver with the grating Otherwise the grating will interfere with the remote controller signal and significantly reduce the distance and area angle from which t...

Страница 4: ... pipes Make sure that the drain hose is not routed upward and that there are no waves in the hose Do not pull the hose when applying the tape Route the piping so that it does not project past the rear of the indoor unit Refer to the figure to the right Connecting Pipe Installation Install the connecting pipes so that the piping can move slightly to the front back left and right Piping tape Drain ho...

Страница 5: ...75 ø15 88 5 8 29 73 5 to 78 4 750 to 800 Smooth all around Even length all around Inside is shin ing without any scratches Flare nut Die Fig 5 Fig 6 Copper pipe Do not make drain piping as shown below Accumulated drain water Air Waving Water leakage Do not raise Water leakage Water leakage Tip of drain hose dipped in water Ditch At least 50 mm gap Downward slope Drain hose Soft hose I D 15 mm Drai...

Страница 6: ...remote controller how to remove the air filters 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 Emergency operation switch E O SW Caution After test run or remote signal reception check turn off the unit with the E O SW or the remote controller before turning off the...

Страница 7: ... to the indoor control board of an air conditioner with a connect ing cable Cutting or extending the connecting cable of the interface results in defects in connecting Do not bundle the connecting cable together with power supply cord indoor outdoor connecting wire and or earth wire Keep as much distance as pos sible between the connecting cable and those wires The thin part of the connecting cabl...

Страница 8: ...HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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