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In document Indoor Unit Outdoor Unit (сторінка 57-70)

10-1. Installation Diagram of Indoor and Outdoor Units

Before installing the wireless remote controller

• Loading Batteries

1. Remove the battery cover.

2. Insert 2 new batteries (AAA type)

following the (+) and (− ) positions. 3 Batteries 2 Wireless remote controller


– 57 –

10-2. Optional Parts, Accessories and Tools

10-2-1. Optional Installation Parts

Part Code



Parts name Refrigerant piping

Indoor unit name Liquid side (Outer diameter) Gas side (Outer diameter) RAS-10SKVR-E, 13SKV-E, 13SKVR-E 6.35 mm 9.52 mm

Shield pipe (for extension drain hose) (polyethylene foam, 6 mm thick)


1 ea.


Attachment bolt arrangement of outdoor unit

• Secure the outdoor unit with the attachment bolts and nuts if the unit is likely to be exposed to a strong wind.

• Use Ø8 mm or Ø10 mm anchor bolts and nuts.

If it is necessary to drain the defrost water, attach drain nipple to the base plate of the outdoor unit before installing it.

10-2-2. Accessory and Installation Parts

Suction side

Diffuser Elongated

drain hole ( )

Drain hole ( )

Part name (Q’ty)

Installation plate × 1

Wireless remote control × 1

Battery × 2

Remote control holder × 1

Part No.





Part name (Q’ty)

Super Sterilizer filter x 1

Plasma pure filter × 1

Mounting screw Ø4 × 25L × 6

Remote control holder mounting screw

Ø3.1 × 16L × 2

Part No.



Part name (Q’ty)

Drain nipple* x 1

Water-proof rubber cap* x 2


Name Owner’s manual Installation manual Important information and warning*

B/W strips*

(Energy efficiency labels) Parts marked with asterisk (*) are packaged with the outdoor unit.

This model is not equipped with an extension drain hose.

Part No.












RAS-16SKV-E, 16SKVR-E 6.35 mm 12.7 mm

Super Oxi Deo filter x 1

(SKV series)

(SKVR series)

10-2-3. Installation/Servicing Tools Changes in the product and components

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed.

(1/2 UNF 20 threads per inch)

• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8) New tools for R410A

New tools for R410A

Gauge manifold

Charge hose

Electronic balance for refrigerant charging

Torque wrench

(nominal diam. 1/2, 5/8)

Flare tool (clutch type)

Gauge for projection adjustment

Vacuum pump adapter

Gas leakage detector

Applicable to R22 model









As pressure is high, it is impossible to measure by means of conventional gauge. In order to prevent any other refrigerant from being charged, each port diameter has been changed.

In order to increase pressure resisting strength, hose materials and port size have been changed (to 1/2 UNF 20 threads per inch).

When purchasing a charge hose, be sure to confirm the port size.

As pressure is high and gasification speed is fast, it is difficult to read the indicated value by means of charging cylinder, as air bubbles occur.

The size of opposite sides of flare nuts have been increased.


a common wrench is used for nominal diameters 1/4 and 3/8.

By increasing the clamp bar’s receiving hole, strength of spring in the tool has been improved.

Used when flare is made by using conventional flare tool.

Connected to conventional vacuum pump. It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose. The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads per inch) and one for R410A. If the vacuum pump oil (mineral) mixes with R410A a sludge may occur and damage the equipment.

Exclusive for HFC refrigerant.

• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U. S’s ARI specified rose color (ARI color code: PMS 507).

• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.

– 59 –

10-3. Indoor Unit

10-3-1. Installation Place

• A place which provides enough spaces around the indoor unit as shown in the diagram.

• A place where there are no obstacle near the air inlet and outlet.

• A place which allows easy installation of the piping to the outdoor unit.

• A place which allows the front panel to be opened.

• The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2m in height.

• Also, avoid putting anything on the top of the indoor unit.


• Direct sunlight on the indoor unit wireless receiver should be avoided.

• The microprocessor in the indoor unit should not be too close to r-f sources.

(For details, see the owner's manual.)

Remote controller

• Should be placed where there are no obstacles, such as curtains, that may block the signal.

• Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such as a stove.

• Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment.

(This is necessary to prevent image disturbances or noise interference.)

• The location of the remote controller should be determined as shown below.

Fig. 10-3-1

10-3-2. Drilling a Hole and Mounting Instal- lation Plate

Drilling a hole

When install the refrigerant pipes from the rear.

Fig. 10-3-2

1. After determining the pipe hole position on the installation plate (


) drill the pipe hole (Ø65 mm) at a slight downward slant to the outdoor side.


• When drilling into a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately.

Mounting the installation plate

Indoor unit (Top view) (Side view)


controller Remote controller

Indoor unit

Reception range

Reception range

Fig. 10-3-3

Pipe hole





Indoor unit

Thread Hook


Pipe hole Mounting screw Hook


Installation plate Anchor bolt holes

2 m or more from floor



When the installation plate is directly mounted on the wall

1. Securely fit the installation plate onto the wall by screws with the upper and lower catches, that hold the indoor unit, facing out.

2. To mount the installation plate on a concrete wall use anchor bolts. Drill the anchor bolt holes as illustrated in the above figure.

3. Install the installation plate horizontally and level.


When installing the installation plate with mount- ing screw, do not use the anchor bolt hole.

Otherwise the unit may fall down and result in personal injury and property damage.

Fig. 10-3-4

Fig. 10-3-5


Failure to securely install the unit may result in personal injury and/or property damage if the unit falls.

• In case of block, brick, concrete or similar type walls, drill 5 mm dia. holes in the wall.

• Insert clip anchors for the


mounting screws.


• Install the installation plate using mounting screws between 4 to 6, being sure to secure all four corners.

Anchor bolt

Projection 15mm or less

5 mm dia. hole

Clip anchor (local parts)

7 Mounting screw Ø4 × 25L

10-3-3. Electrical Work

1. The supply voltage must be the same as the rated voltage of the air conditioner.

2. Prepare a power source for the exclusive use of the air conditioner.


• Wire type :

More than 1.5 mm2 H07RN-F or 60245IEC66.


• This appliance can be connected to a main circuit breaker in either of the following two ways.

1. Connection to fixed wiring:

A switch or circuit breaker which discon- nects all poles and has a contact separa- tion of at least 3 mm must be incorporated in the fixed wiring. An approved circuit breaker or switch must be used.

2. Connection with power supply plug:

Attach power supply plug with power cord and plug it into wall outlet. An approved power supply cord and plug must be used.


• Perform wiring work being sure the wire length is long enough.

10-3-4. Wiring Connection

How to connect the connecting cable Wiring the connecting cable can be carried out without removing the front panel.

1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

2. Remove the terminal cover and cord clamp.

3. Insert the connecting cable (or as according to local regulations/codes) into the pipe hole on the wall.

4. Pull the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm out of the front.

5. Insert the connecting cable fully into the terminal block and secure it tightly with screws.

6. Tightening torque: 1.2 N•m (0.12 kgf•m)

7. Secure the connecting cable with the cord clamp.

8. Attach the terminal cover, rear plate bushing and air inlet grille on the indoor unit.


– 61 –


• Be sure to refer to the wiring system diagram labeled inside the front panel.

• Check local electrical regulations for any specific wiring instructions or limitations.

10-3-5. Piping and Drain Hose Installation Piping and drain hose forming

• Since condensation results in machine trouble, make sure to insulate both the connecting pipes separately.

(Use polyethylene foam as insulating material.)

Fig. 10-3-6

Fig. 10-3-7

Fig. 10-3-8

Fig. 10-3-9


WIRE TYPE : more than 1.0mm2.(H07 RN-F or 60245 IEC 66).

Fig. 10-3-10 1. Die-cutting front panel slit

Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right connection with a pair of nippers.

2. Changing drain hose

For left connection, left-bottom connection and rear-left connection’s piping, it is necessary to relocate the drain hose and drain cap.


Earth line Connecting cable

about 15 cm

Connecting cable Screw


Earth line Terminal block


Cord clamp Terminal cover

1 2 3

1 2 3

10 mm

10 mm

50 mm 110 mm

Terminal block

How to remove the drain cap

Clip drain cap with needle-nose pliers, and pull out.

Fig. 10-3-11

How to remove the drain hose

The drain hose is secured in place by a screw.

Remove the screw securing the drain hose, then pull out the drain hose.

Die-cutting Front panel slit Changing drain hose Piping preparation

Rear right Rear left Bottom left Left

Bottom right Right

Screw Drain hose

Fig. 10-3-12


4 mm

No gap

Insert a hexagon wrench (Ø4mm)

Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap.

If applied, deterioration and drain leakage of the drain plug may occur.

How to attach the drain cap 1. Insert hexagonal wrench (4 mm).

Fig. 10-3-13 2. Firmly insert drain cap.

Fig. 10-3-14

How to attach the drain hose

Always use the original screw that secured the drain hose to the unit. If using a different screw may cause water to leak.

Insert the drain hose firmly until the connector contacts with the insulation, then secure it in place using the original screw.


Securely insert the drain hose and drain cap;

otherwise, water may leak.

In case of right or left piping

• After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool.

Fig. 10-3-15

Fig. 10-3-16

Left-hand connection with piping

Bend the connecting pipes so that they are posi- tioned within 43 mm above the wall surface.

If the connecting pipes are positioned more than 43 mm above the wall surface, the indoor unit may be unstable.

When bending the connecting pipe, make sure to use a spring bender to avoid crushing the pipe.

Refer to the table below for the bending radius of each connection pipe.

Fig. 10-3-17


If the pipe is incorrectly bent, the indoor unit may be unstable on the wall.

After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.

In case of bottom right or bottom left piping

• After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool.

To connect the pipe after installation of the unit (figure)

Outer diameter 6.35 mm 9.52 mm 12.7 mm

Bending radius 30 mm 40 mm 50 mm



43 mm

Use a screwdriver handle, etc.

(To the front flare)

Outward form of indoor unit Gas side

270 mm 230 mm

R30 or less (Ø6.35), R40 or less (Ø9. 52), R50 or less (Ø12. 7) Use polishing (polyethylene core or the like for bending pipe).

Liquid side

– 63 –


• Bind the auxiliary pipes (two) and connecting cable with facing tape tightly.

In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape.

Fig. 10-3-18

• Carefully arrange the pipes so that none of the pipes stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl tape, etc.

• Since condensation can result in machine performance trouble, be sure to insulate both connecting pipes. (Use polyethylene foam as insulating material.)

• When bending a pipe, be careful not to crush it.

10-3-6. Indoor Unit Installation

1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks.

2. Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate.

3. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate.

Pull the indoor unit toward you to confirm that it is firmly hooked on the installation plate.

Installation plate

Indoor unit

Connecting cable Auxiliary pipes

10-3-7. Drainage

1. Run the drain hose at a downward sloped angle.


• Hole should be made at a slight downward slant on the outdoor side.

Fig. 10-3-21

2. Put water in the drain pan and make sure that the water is being drained outside.

3. When connecting extension drain hose, insulate the connection part of extension drain hose with shield pipe.

Fig. 10-3-22


Install the drain pipe for proper drainage.

Improper drainage can result in water dripping inside the room.

This air conditioner has been designed to drain water collected from condensation which forms on the back of the indoor unit, to the drain pan.

Therefore, do not locate the power cord and other parts at a high place than the drain guide.

Fig. 10-3-19

• For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places.

Fig. 10-3-20 Push Push

Push (unhook) 1 Installation

plate Hook here

2 Hook


50 mm or more

Do not rise the drain hose. Do not form the drain hose into the waved shape.

Do not put the drain hose end into water.

Do not put the drain hose end in the drainage ditch.

Shield pipe

Extension drain hose Inside the room

Drain hose

Space for pipes

Wall Drain guide

Fig. 10-3-23

10-4. Outdoor Unit

10-4-1. Installation Place

• A place which provides enough space around the outdoor unit as shown in the diagram.

• A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration.

• A place where the operation noise and discharged air do not disturb neighbors.

• A place which is not exposed to a strong wind.

• A place free of combustible gases.

• A place which does not block a passageway.

• When the outdoor unit is to be installed in an elevated position, be sure to secure its feet.

• This air conditioner accepts a connection piping length of up to 20 m.

• There is no need to add refrigerant as long as the length of the connection piping is 15 m or less.

• You will need to add 20 g of refrigerant per meter of added connection piping for installations requiring connection piping to be between 16 m to 20 m.

• An allowable height level is up to 10 m.

• A place where the drain water does not cause any problems.

Precautions for adding refrigerant

• Use a scale having a precision with at least 10 g per index line when adding the refrigerant.

Do not use a bathroom scale or similar instrument.

• Use liquid refrigerant when refilling the refrigerant.

Since the refrigerant is in liquid form, it can fill quickly.

Therefore, perform the filling operation carefully and insert the refrigerant gradually.


1. Install the outdoor unit without anything blocking the discharging air.

2. When the outdoor unit is installed in a place always exposed to strong winds like on the coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield.

3. Especially in windy areas, install the unit to prevent the admission of wind.

4. Installation in the following places may result in trouble.

Do not install the unit in such places.

• A place full of machine oil.

• A saline-place such as the coast.

• A place full of sulfide gas.

• A place where high-frequency waves are likely to be generated, such as from audio equipment, welders, and medical equip- ment.

Fig. 10-4-1 Strong wind

– 65 –

Base plate 9 Drain nipple

10 Water-proof rubber caps (supplied with the outdoor unit)

10-4-2. Draining the Water

• Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently.

If a centralized drain is required when installing the unit on a balcony or wall, follow the steps below to drain off the water.

1. Proceed with water-proofing by installing the water-proof rubber caps


in the 2 elongated holes on the base plate of the outdoor unit. [How to install the water-proof rubber caps]

1) Place four fingers into each cap, and insert the caps into the water drain holes by pushing them into place from the underside of the base plate.

2) Press down on the outer circumferences of the caps to ensure that they have been inserted tightly.

(Water leaks may result if the caps have not been inserted properly, if their outer circumfer- ences lift up or the caps catch on or wedge against something.)

Fig. 10-4-2

2. Install the drain nipple


and a commercially available drain hose (with 16 mm inside diam- eter), and drain off the water.

(For the position where the drain nipple



installed, refer to the installation diagram of the indoor and outdoor units.)

• Check that the outdoor unit is horizontal, and route the drain hose at a downward sloped angle while ensuring that it is connected tautly.

Do not use ordinary garden hose, but one can flatten and prevent water from draining.

Fig. 10-4-3

Commercially available drain hose

Base plate 9 Drain nipple

10-4-3. Refrigerant Piping Connection Flaring

1. Cut the pipe with a pipe cutter.

Fig. 10-4-4

2. Insert a flare nut into the pipe, and flare the pipe.

• Projection margin in flaring : A (Unit : mm) Rigid (Clutch type)

Fig. 10-4-5 Imperial (Wing nut type)

• Flaring size : B (Unit : mm)

Fig. 10-4-6

• In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.5 mm more than that of R22 to adjust to the specified flare size.

The copper pipe gauge is useful for adjusting projection margin size.

90˚ Obliquity Roughness Warp

Die Pipe


+0 –0.4

B Outer dia. of

copper pipe 6.35 9.52 12.7

R410A tool used

0 to 0.5 0 to 0.5 0 to 0.5

Conventional tool used

1.0 to 1.5 1.0 to 1.5 1.0 to 1.5

Outer dia. of copper pipe

6.35 9.52 12.7

R410A 1.5 to 2.0 1.5 to 2.0 2.0 to 2.5

Outer dia. of copper pipe

6.35 9.52 12.7


R410A R22

9.1 9.0

13.2 13.0

16.6 16.2

In document Indoor Unit Outdoor Unit (сторінка 57-70)