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• Read the catalog and other technical materials and prepare

the required materials.

• Applicable piping kit

CZ-3F5, 7BP (E10****),
CZ-4F5, 7, 10BP (E15****, E18****)

• This illustration is for explanation purposes only.

The indoor unit will actually face a different way.

Rigid PVC pipe

VP20 (outer diameter ø26); also sockets, elbows 
and other parts as necessary

Adhesive

PVC adhesive

Insulation

For refrigerant piping insulation: foamed
polyethylene with a thickness of 8 mm or more.
For drain piping insulation: foamed polyethylene 
with a thickness of 10 mm or more.

Indoor/outdoor 
connecting cable

4 x 1.5 mm

2

 flexible cord, designation type 245 

IEC 57 (H05RN-F)

Hanging bolt 
related parts

Hanging bolts (M10) (4) and nuts (12), Flat
washers (8) (when hanging the indoor unit)

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Take into consideration the following contents when creating the blueprint.

• Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.
• The location should be strong enough to support the main unit without vibration.
• There should not be any heat or steam source nearby.
• Drainage should be easy. Avoid locating the drain port close to ditches (domestic wastewater).
• Avoid locations above entrances and exits.
• Do not block the air intake and discharge passages.
• Select the location that enables the cool and warm air to spread out to the entire room.
• Locate the indoor unit at least 1 m or more away from a TV, radio, wireless appliance, antenna cable and fluorescent light, and 2

m or more away from a telephone.

• Allow sufficient space around the remote controller 

 as

shown in the illustration at right.

• Install in a place which is away from direct sunlight and high

humidity.

• Install in a flat surface to avoid warping of the remote

controller. If installed to a wall with an uneven surface,
damage to the LCD case or operation problems may result.

• Install in a place where the LCD can be easily seen for

operation.
(Standard height from the floor is 1.2 to 1.5 meters.)

• Avoid installing the remote controller cable near refrigerant

pipes or drain pipes, else it will cause electrical shock or fire.

1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the

wall.

4. Finish by sealing the sleeve with putty or caulking

compound at the final stage.

Install the remote controller cable at least 5 cm away from electric
wires of other appliances to avoid miss-operation
(electromagnectic noise).

When the wall is hollow, be sure to use the sleeve for tube
assembly to prevent pests from damaging the cables, e.g. mice
biting the connecting cable.

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• Always provide sufficient entry and exit space to allow installation work, inspection and unit replacement.
• Waterproof the rear surface of the ceiling below the unit in consideration of water droplets forming and dropping.

• When installing into a ceiling, select the unit position and airflow direction that enable the cool and warm air to spread

• Do not place objects that might obstruct the airflow within 1 m below the intake grill.

• The relative positions of the ceiling opening and hanging

bolts are shown in the illustrations below. When making an
inspection opening below the unit, make a 960 mm x 480
mm opening at the ceiling surface. Also, lead the drain
piping, refrigerant piping and indoor/outdoor connecting
cables up to the respective piping and cable connection
positions.

• Secure the hanging bolts (M10, locally purchased) firmly in a

manner capable of supporting the unit weight.

• Consult your construction or interior contractor for details on finishing the ceiling opening.

When cooling operation is performed for an extended period under the following conditions, water droplets may form and drop. Attach locally
purchased insulation (foamed polyethylene with a thickness of 5 mm or more) to the outside of the indoor unit before installing into the ceiling to
improve heat insulation.

• Locations with a dew point inside the ceiling of 23

°C or more.

• Kitchens and other locations that produce large amounts of heat and steam.
• Locations where the inside of the ceiling serves as an outside air intake passage.

Allowable duct length

Duct bends

Discharge side 
duct

5 m or less including 

the intake side

90

° or less in one

location

Intake side duct

1 m or less

45

° or less in one

location

These diagrams show the unit together with the purchased components.

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• Fit the drain hose insulation 

around the drain hose as shown in the diagram beside.

• Attach the discharge chamber. (

) (10 screws)

• Cut out the intake cut-out portions at the unit rear panel using a cutter or other tools to make openings.

• Remove the two screws at the rear edge of the unit top panel and attach the intake chamber. (

) (8 screws)

• To increase the air volume, open the control box and on the control board, switch the FAN switch (SW2) to “HI”.
• See the diagram for “Connecting the Indoor/Outdoor Connecting Cable”.

• Attach the nuts and washers to the hanging bolts, then lift up and hook the main unit onto the hanging fixtures.
• Check if the unit is leveled using a level or a vinyl hose filled partially with water.