TOSHIBA RAS-B05 Air Conditioner Split Type Instruction Manual

: June 16, 2024
: Toshiba

RAS-B05 Air Conditioner Split Type

Product Information

Specifications

Air Conditioner Type: Split Type
Refrigerant: R32 or R410A

Installation Manual

To access the installation and owner’s manual, scan the QR code
provided or visit the website https://www.toshiba- carrier.co.th/manuals/default.aspx.
The manual is available in multiple languages including AR, BG, CZ,
DA, DE, EL, EN, ES, ET, FI, FR, HR, HU, IT, LT, LV, NL, NO, PL, PT,
RO, RU, SK, SL, and SV.

Accessory Parts

Indoor Unit

No.	Part name
1	Battery cover

Outdoor Unit

No.	Part name
%	Not require to use for RAS-18E2KVG-E

Air Filter Cleaning

Clean the air filters every 2 weeks using the following
steps:

Open the air inlet grille.
Remove the filters if they are on the air filter.
Vacuum or wash the filters and then dry them.
Reinstall the filters and close the air inlet grille.

Ultra Fresh Filter Cleaning

Clean the ultra fresh filter every 6 months or when dust covers
the filter using one of the following methods:

Shake and blow with normal air.
Rinse the filter in water and dry it under sunlight or in air.
Do not wash or rinse with high pressure water.
Replace the filter every 3 years or sooner (P/N:
RB-A701FE).

Note: Filter life depends on the level of impurities in your
operating environment. Higher levels of impurities may require more
frequent cleaning and replacement. We recommend an additional set
of filters to improve the purifying and deodorizing performance of
your air conditioner.

Installation Diagram of Indoor and Outdoor Units

Refer to the installation diagram below for installing the
indoor and outdoor units:

Wireless Remote Controller

The provided remote controller is a wireless type, but it can
also be used as a wired controller if required. Refer to the manual
for instructions on how to connect the remote controller for wired
operation.

Optional Installation Parts

Part code	Parts name
A	Refrigerant piping (RAS-B05, 07, 10, 13E2KVG-E)
A	Refrigerant piping (RAS-B16, 18E2KVG-E)
A	Refrigerant piping (RAS-18E2KVG-E)
A	Pipe insulating material (polyethylene foam, 6 mm thick)

Frequently Asked Questions (FAQ)

Q: How often should I clean the air filters?

A: The air filters should be cleaned every 2 weeks.

Q: How often should I clean the ultra fresh filter?

A: The ultra fresh filter should be cleaned every 6 months or
when dust covers the filter.

Q: How often should I replace the ultra fresh filter?

A: The ultra fresh filter should be replaced every 3 years or
sooner.

INSTALLATION MANUAL
AIR CONDITIONER (SPLIT TYPE)

R32 or R410A
ENGLISH

Scan QR CODE to access installation and owner’s manual on website. https://www .toshiba-carrier.co.th/manuals/default.aspx
Manual are available in AR/BG/CZ/DA/DE/EL/EN/ES/ET/FI/FR/ HR/HU/IT/LT/LV/NL/NO/PL/PT/RO/RU/SK/SL/SV.

Indoor unit RAS-B05, 07, 10, 13, 16, 18E2KVG-E RAS-18E2KVG-E
Outdoor unit RAS-05, 07, 10, 13, 16, 18E2AVG-E

1144180131A

ACCESSORY PARTS

Indoor Unit

No.

Part name

No.

Part name

1

2

Installation plate × 1

Wireless remote controller × 1

3

4

Battery × 2

Remote controller holder × 1

5

6

Ultra Fresh filter × 1

Mounting screw × 6

7

8

Flat head wood screw × 2

Owner’s Manual × 1

9

!

Installation Manual × 1

Flat head wood screw × 1

”

Battery cover

B Label × 1*

$ Safety Manual × 1

Outdoor Unit

No.

Part name

No.

Part name

%

&

Drain nipple × 1

Cap water proof × 2*

*Not require to use for RAS-18E2KVG-E
Air filters Clean every 2 weeks.
1. Open the air inlet grille. 2. Remove the filters if they are on the air filter. 3. Vacuum or wash and then dry them. 4. Reinstall the filters and close the air inlet grille.
Ultra Fresh filter Maintaining your strong purifying and revitalizing filter. Clean every 6 months or when dust covers the filter.
1. Shake and blow with normal air or 2. Rinse the filter in water and dry it in under sunlight or in air.
(Do not wash or rinse with high pressure water) 3. Replace every 3 years or sooner. (P/N: RB-A701FE) Note: Filter life depends on the level of impurities in your operating environment.
Higher levels of impurities may require more frequent cleaning and replacement. In all cases, we recommend an additional set of filters to improve the purifying and deodorizing performance of your air conditioner.

Filter

1

INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS

Flat head wood screw
7

300 mm or more

65 mm or more

For the rear left, bottom left and left piping

Hook

Wall

1 Installation
plate

Cut out a piece of SPACER from

Hook

300 mm or more

indoor unit packaging box, roll it and insert between the indoor unit and wall to tilt the indoor unit for better operation.

Battery cover
”

Air filter

!
Flat head wood screw

(Attach to the front panel.)

Batteries
3

5
Filter

Refrigerant piping must be protected from physical damage. Install a plastic cover or equivalent.

7
Flat head wood screw

4
Remote controller holder

Vinyl tape Apply after carrying out a drainage test.

The auxiliary piping can be connected to the left, rear left, rear right, right, bottom right or bottom left.

Shield pipe

Right
Rear right
Bottom right

Rear

Left

left Bottom left

Do not allow the drain hose to get slack.
Cut the piping hole sloped slightly.

Make sure to run the drain hose sloped downward.

C mm or more

2 Wireless remote
controller
The provided Remote Controller is a wireless type, which also can be used as a wire. Please see “How to Connect The Remote Controller for Wired Operation”, in case of wired control is required.

F mm or more

RAS-05, 07, 10, 13E2AVG-E RAS-16, 18E2AVG-E

C

600

D

400

600

E

45

100

F

100

D mm or more

E mm or more

Saddle

Insulate the refrigerant pipes separately with insulation, not together.

Extension drain hose (Not available, provided by installer)
C mm or more

6 mm or 8 mm thick heat resisting polyethylene foam

Optional Installation Parts

Part code

Parts name

Refrigerant piping

Liquid side : Ø6.35 mm

Gas side : Ø9.52 mm

A

(RAS-B05, 07, 10, 13E2KVG-E)

: Ø12.70 mm

(RAS-B16, 18E2KVG-E)

(RAS-18E2KVG-E)

Pipe insulating material

(polyethylene foam, 6 mm thick)

B

For RAS-B05, 07, 10, 13E2KVG-E (polyethylene foam, 8 mm thick)

For RAS-B16, 18E2KVG-E

RAS-18E2KVG-E

C Putty, PVC tapes

Q’ty
One each
1
One each

Fixing bolt arrangement of outdoor unit

· Secure the outdoor unit with fixing 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 % and cap
water proof & to the bottom plate of the outdoor unit before installing it.

500 mm 97 mm Air inlet

108 mm 28 mm

125 mm Air inlet

300 mm 280 mm
53 mm 340 mm 320 mm 86 mm 102 mm

Air outlet

Drain outlet

RAS-05, 07, 10, 13E2AVG-E

Air outlet 600 mm

90 mm
Drain outlet

RAS-16, 18E2AVG-E

w When using a multi-system outdoor unit, refer to the Installation Manual provided with the model concerned.

2

INDOOR UNIT

Installation Place
· A place which provides the spaces around the indoor unit as shown in the diagram
· A place where there are no obstacles 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 at least 2.5 m height. Also, it must be
avoided to put anything on the top of the indoor unit.

CAUTION
· Direct sunlight to the indoor unit’s wireless receiver should be avoided. · The microprocessor in the indoor unit should not be too close to RF
noise sources. (For details, see the Owner’s Manual.)

Remote control
· A place where there are no obstacles such as a curtain that may block the signal from the indoor unit
· Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove.
· Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference.)
· The location of the remote control should be determined as shown below.

(Side view)

(Top view) Indoor unit 45° 45°

Indoor unit 60°

Reception range

Remote controller

Reception range

Cutting a Hole and Mounting Installation Plate
Cutting a hole
When installing the refrigerant pipes from the rear

Mounting the installation plate

300 130 30

Hook

40 0

190 180

65 103 300
30

Pipe hole

Hook

Thread

Indoor unit

Weight

1

Hook

Installation

plate

Pipe hole

6 Mounting screw

For RAS-B05, 07, 10, 13E2KVG-E

Hook

65 103

300 144 50

300 50

Pipe hole

Hook

Thread

Indoor unit

Weight

1

Hook

Installation

plate

Pipe hole

6 Mounting screw

For RAS-B16, 18E2KVG-E RAS-18E2KVG-E

When the installation plate is directly mounted on the wall
1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit.
2. To mount the installation plate on a concrete wall with anchor bolts, use the anchor bolt holes as illustrated in the below figure.
3. Install the installation plate horizontally in the wall.
CAUTION
When installing the installation plate with a mounting screw, do not use the anchor bolt holes. Otherwise, the unit may fall down and result in personal injury and property damage.

Installation plate (Keep horizontal direction.)

Pipe hole Ø65 mm

The center of the pipe hole

is above the arrow.

A

Model name RAS-B05, 07, 10, 13E2KVG-E
RAS-B16, 18E2KVG-E RAS-18E2KVG-E

A (Unit : mm) 100
120

1. After determining the pipe hole position on the mounting plate (), drill the pipe hole (Ø65 mm) at a slight downward slant to the outdoor side.
NOTE
· When drilling a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately.

5 mm dia. hole

Anchor bolt
Projection 15 mm or less

Clip anchor (local parts)

6 Mounting screw
Ø4 mm x 25R

CAUTION
Failure to firmly install the unit may result in personal injury and property damage if the unit falls.
· In case of block, brick, concrete or similar type walls, make 5 mm dia. holes in the wall.
· Insert clip anchors for appropriate mounting screws 6.
NOTE
· Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it.

3

How to Connect Remote Controller for Wire Operation
Indoor unit Control wire Remote controller

For indoor unit
1. Securely remove two screws at the front panel. Type A : Open the air inlet grille upward. Type B : Open two screw caps.
2. Slightly open the lower part of the front panel then pull the upper part of the front panel toward you to remove it as shown on figure 1.
3. Arrange the control wire as detail and specification as shown on figure 2. 4. Securely connect the control wire to terminal of Display unit as shown on
figure 3 (tighten firmly but not over 0.12 N·m (0.01 kgf·m)). 5. Set the control wire out from indoor unit same portion as power supply
and connecting cable as shown on figure 3. (Notch for wire out) 6. Reassembly the indoor unit by reverse process of 1 to 2.

1
Type : A

Front panel

For remote controller

1. Remove cover of remote controller by sliding down and take it out.
2. If batteries are exist, please take them out. The combination of using
wire controller and batteries may cause of batteries explosion.
3. Make hole for insert control wire by use screwdriver break the plastic for cover hole as shown on figure 4.
4. Insert control wire from rear side of remote controller as shown on figure 5.
5. Fix control wire which arrange as shown on figure 6 and 7 to terminal by provided screws (tighten firmly but not over 0.25 N·m (0.03 kgf·m)).
6. Set control wire through gutter way at rear side of remote controller as shown on figure 8.
7. Fix provided screw (Ø3.1×16L) on the wall to hang remote controller as shown on figure 9.
8. Mark and arrange hole for fix below screw (Ø3.1×25L) as shown on figure 9.
9. Assembly battery cover which provided with accessory bag then use
provide screw (Ø3.1×25L) to fix battery cover together with wall as shown on figure ! (tighten firmly but not over 0.15 N·m (0.02 kgf·m)). 10. Reassembly cover of remote controller.

4

5

6

30 mm

Plastic for cover hole
7 Type A

10 mm

Control wire Type B

Wire size 28-22AWG or 0.08-0.32 mm2 Outer diameter not over 4.7 mm, control wire length 30 m. or less.

Terminal

Control wire

Screw
1
Type : B

Screw

Front panel

Screw

Terminals for wiring can be either on right (type A) or left (type B), depending on the controller packed in carton.
Control wire

Control wire
Hole for hang remote controller Remote controller

Screw (Ø3.1×16L) for hang remote controller
Wall

Wire size 28-22AWG or 0.08-0.32 mm2 Outer diameter not over 4.7 mm, control wire length 30 m. or less.

Screw cap

70 mm

2

5 mm

3

Notch for wire out

Control wire

Terminal

Display unit

Type A

Control wire

Remote controller
8
Type B

Screw (Ø3.1×25L) for fix battery cover
9

Battery cover
!
Screw
Tighten firmly but not over 0.15 N·m (0.02 kgf·m)

4

*Remark : 1. Recommend to use double insulation lead wire for connect remote controller and air conditioner.
2. For wire operation, 1 remote controller can control only 1 indoor unit.
3. In wire operation, remote controller will return to initial condition (PRESET, TIMER and CLOCK will return to initial condition) when user shutdown power supply of air conditioner.

In case of right or left piping
· After scribing slits inside of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool.
Slit

Piping and Drain Hose Installation
Piping and drain hose forming

Since dewing results in a machine trouble, make sure to insulate both connecting pipes. (Use polyethylene foam as insulating material.)

In case of bottom right or bottom left piping
· After scribing slits inside of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool.

Die-cutting front panel slit
Changing drain hose Piping preparation

Rear right Rear left Bottom left Left Bottom right Right

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 right side of the front panel for the bottom left or right connection with a pair of nippers.
2. Changing drain hose For leftward connection, bottom-leftward connection and rear-leftward connection’s piping, it is necessary to change the drain hose and drain cap.

How to remove the drain hose
· The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose.
· When removing the drain hose, be careful of any sharp edges of steel plate. The edges can injuries.
· To install the drain hose, insert the drain hose firmly until the connection part contacts with heat insulator, and then secure it with original screw.
How to remove the drain cap
Clip the drain cap by needle-nose pliers and pull out.

Drain hose

How to fix the drain cap

Insert hexagon wrench (4 mm) in a center head.
Firmly insert the drain cap.
Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes deterioration and drain leakage of the plug.
No gap

Insert a hexagon wrench (4 mm).

CAUTION
Firmly insert the drain hose and drain cap; otherwise, water may leak.

Slit

Left-hand connection with piping

· Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.

Bend the connecting pipe within a radius of 30 mm. To connect the pipe after installation of the unit (figure)
(To the forefront of flare)

260 mm 210 mm

Gas side Liquid side

43 mm

Outward form of indoor unit
R 30 mm (Use polisin (polyethylene) core or the like for bending pipe.)

80

Use the handle of screwdriver, etc.

NOTE
If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall. After passing the connecting pipe through the pipe hole, connect the connecting pipes to the auxiliary pipes and wrap the facing tape around them.

CAUTION
· 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.

Auxiliary pipes

Indoor unit Connecting cable

Installation plate
· Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.
· Carefully connect the auxiliary pipes and connecting pipes to one another 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 dewing results in a machine trouble, make sure to insulate both connecting pipes. (Use polyethylene foam as insulating material.)
· When bending a pipe, carefully do it, not to crush it.

5

Indoor Unit Fixing
1. Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hook.
2. Swing the indoor unit to right and left to confirm that it is firmly hooked up 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 up on the installation plate.
Hook here. 1
1 Installation plate

Drainage

1. Run the drain hose sloped downwards.

NOTE

· The hole should be made at a slight downward slant on the outdoor side.

Do not rise the drain hose.

Do not form the drain hose into a wavy shape.

50 mm or more

2 Hook
· For detaching the indoor unit from the installation plate, pull the indoor unit toward you while pushing its bottom up at the specified parts.

Press (unhook)

Do not put the drain hose end into water.

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

2. Put water in the drain pan and make sure that the water is drained out of doors.
3. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe.

Shield pipe

Push

Drain hose

Inside the room

Extension drain hose

CAUTION
Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide.

Wall
Drain guide

Space for pipes

OUTDOOR UNIT

Installation Place

· A place which provides the spaces 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 your neighbors.
· A place which is not exposed to a strong wind. · A place free of a leakage of combustible gases. · A place which does not block a passage. · When the outdoor unit is to be installed in an elevated position, be sure to
secure its feet. · The allowable length of the connecting pipe.

Model Chargeless

RAS-05E2AVG-E RAS-07E2AVG-E RAS-10E2AVG-E RAS-13E2AVG-E RAS-16E2AVG-E RAS- 18E2AVG-E Up to 15 m Up to 15 m Up to 15 m Up to 15 m Up to 15 m Up to 15 m

Maximum length

15 m

20 m

Additional refrigerant charging
Maximum refrigerant charging

0.34 kg

0.49 kg

–

16 – 20 m 16 – 20 m (20 g / 1 m) (20 g / 1 m)

0.54 kg 0.78 kg 1.03 kg

· The allowable height of outdoor unit installation site.

Model Maximum height

RAS-05E2AVG-E RAS-07E2AVG-E RAS-10E2AVG-E RAS-13E2AVG-E RAS-16E2AVG-E RAS- 18E2AVG-E

12 m

· A place where the drain water does not raise any problems or with good drainage.
· A place where it can be installed horizontally.

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.
CAUTION
When the outdoor unit is installed in a place where the drain water might cause any problems, Seal the water leakage point tightly using a silicone adhesive or caulking compound.

Precautions about Installation in Regions with Snowfall and Cold Temperatures

· Do not use the supplied drain nipple for draining water. Drain the water from all the drain holes directly.
· To protect the outdoor unit from snow accumulation, install a holding frame, and attach a snow protection hood and plate.

Do not use a double-stacked design.

Front
Anchor bolts

Snow protection plate
Snow protection hood Install at least 50 cm above the snow accumulation line.
At least 50 cm Snow accumulation line
Holding frame

6

CAUTION

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

2. When the outdoor unit is installed in a place always exposed to strong

wind like a coast or on a high storey of a building, secure the normal

fan operation using a duct or a windshield.

3. In particularly windy areas, install the unit such as to avoid 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

Strong wind

as from audio equipment, welders,

and medical equipment

Draining the Water

Install the drain nipple and a commercially available drain hose (with 16 mm inside diameter), and drain off the water. (For the position where the drain nipple is 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.

Base plate

Drain nipple

Commercially available drain hose

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

Tightening connection
Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.

Half union
Externally threaded side

Flare nut
Internally threaded side

Use a wrench to secure.

Use a torque wrench to tighten.

CAUTION
Do not apply excess torque. Otherwise, the nut may crack depending on the conditions.

Outer dia. of copper pipe Ø6.35 mm Ø9.52 mm Ø12.70 mm

(Unit : N·m)
Tightening torque 14 to 18 (1.4 to 1.8 kgf·m) 30 to 42 (3.0 to 4.2 kgf·m) 50 to 62 (5.0 to 6.2 kgf·m)

· Tightening torque of flare pipe connections The operating pressure of R32 or R410A is higher than that of R22 (approx. 1.6 times). It is therefore necessary to firmly tighten the flare pipe connecting sections (which connect the indoor and outdoor units) up to the specified tightening torque. Incorrect connections may cause not only a gas leakage, but also damage to the refrigeration cycle.

Flare at indoor unit side
Flare at outdoor unit side

Refrigerant Piping Connection
Flaring
1. Cut the pipe with a pipe cutter.

90°

Obliquity

Roughness

Warp

2. Insert a flare nut into the pipe and flare the pipe. · Projection margin in flaring : A (Unit : mm)
RIDGID (clutch type)

Outer dia. of copper pipe
Ø6.35 Ø9.52 Ø12.70 Pipes thickness

Tool used

Conventional tool used

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

0.8 mm or more

IMPERIAL (wing nut type)
A
Outer dia. of copper pipe

Tool used

Ø6.35

1.5 to 2.0

Die

Pipe

Ø9.52

1.5 to 2.0

Ø12.70

2.0 to 2.5

Pipes thickness

0.8 mm or more

CAUTION
· Do not scratch the inner surface of the flared part when removing burrs.
· Flare processing under the condition of scratches on the inner surface of flare processing part will cause refrigerant gas leak.

7

Evacuating
After the piping has been connected to the indoor unit, you can perform the air purge together at once.
AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the manual of the vacuum pump.

Using a vacuum pump
Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops. (If oil inside of the vacuum pump enters the air conditioner, which use R32 or R410A, refrigeration cycle trouble may result.) 1. Connect the charge hose from the manifold valve to the service port of
the packed valve at gas side. 2. Connect the charge hose to the port of the vacuum pump. 3. Open fully the low pressure side handle of the gauge manifold valve. 4. Operate the vacuum pump to start evacuating. Perform evacuating for
about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute) Then confirm that the compound pressure gauge reading is 101 kPa (76 cmHg). 5. Close the low pressure side valve handle of the gauge manifold valve. 6. Open fully the valve stem of the packed valves (both gas and liquid sides). 7. Remove the charging hose from the service port. 8. Securely tighten the caps on the packed valves.

Compound pressure gauge 101 kPa
(76 cmHg)
Handle Low
Charge hose Connecting pipe

Pressure gauge
Manifold valve Handle High (Keep full closed)
Charge hose
Vacuum pump adapter for counter-flow prevention

Vacuum pump

Packed valve at gas side
Service port (Valve core (Setting pin))
Packed valve at liquid side
CAUTION
· KEEP IMPORTANT 7 POINTS FOR PIPING WORK. (1) Take away dust and moisture (inside of the connecting pipes). (2) Tighten the connections (between pipes and unit). (3) Evacuate the air in the connecting pipes using a VACUUM PUMP. (4) Check gas leak (connected points). (5) Be sure to fully open the packed valves before operation. (6) Reusable mechanical connectors and flared joints are not allowed indoors. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be refabricated. (7) Don’t operate air conditioner in case no refrigerant in the system.

Packed valve handling precautions

· Open the valve stem all the way out, but do not try to open it beyond the stopper.

Pipe size of Packed Valve 12.70 mm and smallers 15.88 mm

Size of Hexagon wrench A = 4 mm A = 5 mm

Pump down process
1. Turn off the Air Conditioner system. 2. Connect the charge hose from the manifold valve to the service port of
the packed valve at gas side. 3. Turn on the Air Conditioner system in cooling operation more than
10 minutes. 4. Check the operating pressure of the system should be normal value.
(Ref. with product specification) 5. Release the valve rod cap of both service valves. 6. Use the Hexagon wrench to turning the valve rod of Liquid side fully
close. (*Make sure no entering air into the system) 7. Continue operate Air Conditioner system until and the gauge of manifold
dropped into the range of 0.5 – 0 kgf/cm² 8. Use the Hexagon wrench to turning the valve rod of Gas side fully close.
And turn off the Air Conditioner system immediately thereafter. 9. Remove the gauge manifold from the service port of the packed valve. 10. Securely tighten the valve rod cap to the both service valves.

CAUTION
Should be check the compressor operating condition while pumping down process. It must not any abnormal sound, more vibration. It is abnormal condition appears and must turn off the Air Conditioner immediately.

· Securely tighten the valve cap with torque in the following table:

Cap Valve Rod Cap
Service Port Cap

Cap Size (H) H17 – H19 H22 – H30 H14 H17

Torque
14~18 N·m (1.4 to 1.8 kgf·m)
33~42 N·m (3.3 to 4.2 kgf·m)
8~12 N·m (0.8 to 1.2 kgf·m)
14~18 N·m (1.4 to 1.8 kgf·m)

Hexagon wrench is required.
A H Service Port Cap
Valve Rod Cap

8

ELECTRICAL WORKS

Model Power source Maximum running current Circuit breaker rating Power supply cable
Connecting cable

RAS-B05E2KVG-E
5.0A 10A H07RN-F or 60245 IEC66 (0.75 mm2 or more)

RAS-B07E2KVG-E RAS-B10E2KVG-E RAS-B13E2KVG-E RAS-B16E2KVG-E RAS-B18, 18E2KVG-E

50Hz, 220 240V Single phase

5.4A

7.2A

7.4A

9.0A

9.25A

15A

H07RN-F or 60245 IEC66 (1.25 mm2 or more)

H07RN-F or 60245 IEC66
(1.5 mm2 or more)

Indoor unit
Wiring of 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 (according to the local cords) into the pipe
hole on the wall. 4. Take out the connecting cable through the cable slot on the rear panel so
that it protrudes about 20 cm from 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. Fix the terminal cover, rear plate bushing and air inlet grille on the
indoor unit.
Front panel

Outdoor unit
1. Remove the valve cover, the electric parts cover and the cord clamp from the outdoor unit.
2. Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of indoor and outdoor unit.
3. Insert the power cord and the connecting cable carefully into the terminal block and secure it tightly with screws.
4. Use vinyl tape, etc. to insulate the cords which are not going to be used. Locate them so that they do not touch any electrical or metal parts.
5. Secure the power cord and the connecting cable with the cord clamp. 6. Attach the electric parts cover and the valve cover on the outdoor unit.
Terminals block

Air inlet grille

Valve cover

Screw Screws
Terminal cover

Cord clamp

How to install the air inlet grille on the indoor unit
· When attaching the air inlet grille, the contrary of the removed operation is performed.

9

In Case of Indoor Unit Connect With 1:1 Outdoor Unit

Connecting cable

Power Supply Input at Outdoor Unit Terminal Block (Recommend)

Indoor Unit

Outdoor Unit

Connecting cable connect to 1 2 3
Terminal block (L N 1 2 3)

Stripping length of the connecting cable

50 mm 10 mm

Earth line

123 LN

45 mm 10 mm 10 mm
60 mm 40 mm
10 mm 10 mm
50 mm

Earth line

3 2 1
10 mm 70 mm

Earth line

Connecting cable

Power supply cable

Power Supply Input at Indoor Unit Terminal Block (Optional)

Indoor Unit

Outdoor Unit

Power supply cable connect to L N
Terminal block (L N 1 2 3)

Stripping length of the power supply cable

50 mm 10 mm

Earth line

123

45 mm 10 mm 10 mm
60 mm

Earth line

N L
10 mm 70 mm

Earth line

Power supply cable

Connecting cable

Connecting cable connect to 1 2 3
Terminal block (L N 1 2 3)

Earth line

Stripping length of the connecting cable

50 mm 10 mm

Earth line

3

10 mm 70 mm

Power supply Connecting

cable

10

Power supply input Wiring Diagram for 1:1 Outdoor Unit Power input at Outdoor Terminal Block (Recommend)
Indoor Terminal Block
Outdoor Terminal Block
Power input
Power input at Indoor Terminal Block (Optional)
Indoor Terminal Block
Power input
Outdoor Terminal Block
CAUTION
1. The power supply must be same as the rated of air conditioner. 2. Prepare the power source for exclusive use with air conditioner. 3. Circuit breaker must be used for the power supply line of this air conditioner. 4. Be sure to comply power supply and connecting cable for size and wiring method. 5. Every wire must be connected firmly. 6. Perform wiring works so as to allow a general wiring capacity. 7. Wrong wiring connection may cause some electrical part burn out. 8. Incorrect or incomplete wiring is carried out, it will cause an ignition or smoke. 9. This product can be connected to main power supply.
Connection to fixed wiring : A switch which disconnects all poles and has a contact separation at least 3 mm must be incorporated in the fixed wiring.
11

In Case of Indoor Unit Connect With Inverter Multi System (IMS)

Connecting cable

Indoor Unit
Connecting cable connect to 1 2 3
Terminal block (L N 1 2 3)

Earth line

Stripping length of the Connecting cable

50 mm 10 mm

Earth line

3 2 1

10 mm

70 mm

Connecting cable

Power supply input Wiring Diagram for Inverter Multi System (IMS)
Power input at Outdoor Terminal Block
Indoor Terminal Block

Outdoor Terminal Block
Power input
CAUTION
1. The power supply must be same as the rated of air conditioner. 2. Prepare the power source for exclusive use with air conditioner. 3. Circuit breaker must be used for the power supply line of this air conditioner. 4. Be sure to comply power supply and connecting cable for size and wiring method. 5. Every wire must be connected firmly. 6. Perform wiring works so as to allow a general wiring capacity. 7. Wrong wiring connection may cause some electrical part burn out. 8. Incorrect or incomplete wiring is carried out, it will cause an ignition or smoke. 9. This product can be connected to main power supply.
Connection to fixed wiring : A switch which disconnects all poles and has a contact separation at least 3 mm must be incorporated in the fixed wiring.

12

Gas Leak Test
Check places for the indoor unit.

OTHERS
Test Operation
To switch the TEST RUN (COOL) mode, press [RESET] button for 10 seconds. (The beeper will make a short beep.)

Check places for the outdoor unit.

OPERATION / RESET Button

· Check the flare nut connections for the gas leak with a gas leak detector or soap water.
Remote Control A-B Selection
· When two indoor units are installed in the same room or adjacent two rooms, if operating a unit, two units may receive the remote control signal simultaneously and operate. In this case, the operation can be preserved by setting either one remote control to B setting. (Both are set to A setting in factory shipment.)
· The remote control signal is not received when the settings of indoor unit and remote control are different.
· There is no relation between A setting/B setting and A room/B room when connecting the piping and cables.
To separate using of remote control for each indoor unit in case of 2 air conditioner are installed near.
Remote Control B Setup. 1. Press [RESET] button on the indoor unit to turn the air conditioner ON. 2. Point the remote control at the indoor unit. 3. Push and hold [CHECK] button on the Remote Control by the tip of the
pencil. “00” will be shown on the display (Picture 1). 4. Press [MODE] during pushing [CHECK]. “B” will show on the display
and “00” will disappear and the air conditioner will turn OFF. The Remote Control B is memorized (Picture 2). Note : 1. Repeat above step to reset Remote Control to be A.
2. Remote Control A have not “A” display. 3. Default setting of Remote Control from factory is A.

Auto Restart Function Setting
This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure.
Information
The product is shipped with Auto Restart function in the ON position. Turn it OFF if this function is not required.
How to turn OFF the Auto Restart Function
· Press and hold the [OPERATION] button on the indoor unit for 3 seconds (3 beep sounds but OPERATION lamp does not blink).
How to turn ON the Auto Restart Function
· Press and hold the [OPERATION] button on the indoor unit for 3 seconds (3 beep sounds and OPERATION lamp blink 5 time/sec for 5 seconds).
NOTE
· In case of ON timer or OFF timer are set, AUTO RESTART OPERATION does not activate.

1

2

Adhesion of B label (When setting to B) · Be sure to adhere the B label # on the cover terminal same as the below
figure. · For RAS-B05, 07, 10, 13, 16, 18E2KVG-E
Cover terminal

B
B Label
13

14

APPENDIX

Work instructions The existing R22 and R410A piping can be reused for inverter R32 product installations.

WARNING
Confirming the existence of scratches or dents on the existing pipes and confirming the reliability of the pipe strength are conventionally referred to the local site. If the specified conditions can be cleared, it is possible to update existing R22 and R410A pipes to those for R32 models.

Basic conditions needed to reuse existing
pipes
Check and observe the presence of three conditions in
the refrigerant piping works.
1. Dry (There is no moisture inside of the pipes.) 2. Clean (There is no dust inside of the pipes.) 3. Tight (There are no refrigerant leaks.)

Restrictions for use of existing pipes In the following cases, the existing pipes should not be reused as they are. Clean the existing pipes or exchange them with new pipes. 1. When a scratch or dent is heavy, be sure to use new
pipes for the refrigerant piping works. 2. When the existing pipe thickness is thinner than the
specified “Pipe diameter and thickness,” be sure to use new pipes for the refrigerant piping works.
y The operating pressure of R32 or R410A is high (1.6 times that of R22). If there is a scratch or dent on the pipe or a thinner pipe is used, the pressure strength may be inadequate, which may cause the pipe to break in the worst case.

Pipe diameter and thickness (mm)

Pipe outer diameter

Thickness

R32, R410A R22

Ø6.4 0.8

Ø9.5 0.8

Ø12.7 0.8

3. When the outdoor unit was left with the pipes disconnected, or the gas leaked from the pipes and the pipes were not repaired and refilled. y There is the possibility of rain water or air, including moisture, entering the pipe.
4. When refrigerant cannot be recovered using a refrigerant recovery unit. y There is the possibility that a large quantity of dirty oil or moisture remains inside the pipes.

5. When a commercially available dryer is attached to the existing pipes. y There is the possibility that copper green rust has been generated.
6. When the existing air conditioner is removed after refrigerant has been recovered. Check if the oil is judged to be clearly different from normal oil. y The refrigerator oil is copper rust green in color: There is the possibility that moisture has mixed with the oil and rust has been generated inside the pipe. y There is discolored oil, a large quantity of residue, or a bad smell. y A large quantity of shiny metal dust or other wear residue can be seen in the refrigerant oil.
7. When the air conditioner has a history of the compressor failing and being replaced. y When discolored oil, a large quantity of residue, shiny metal dust, or other wear residue or mixture of foreign matter is observed, trouble will occur.
8. When temporary installation and removal of the air conditioner are repeated such as when leased etc.
9. If the type of refrigerator oil of the existing air conditioner is other than the following oil (Mineral oil), Suniso, Freol-S, MS (Synthetic oil), alkyl benzene (HAB, Barrel-freeze), ester series, PVE only of ether series. y The winding-insulation of the compressor may deteriorate.

NOTE
The above descriptions are results have been confirmed by our company and represent our views on our air conditioners, but do not guarantee the use of the existing pipes of air conditioners that have adopted R32 or R410A in other companies.

Curing of pipes
When removing and opening the indoor or outdoor unit for
a long time, cure the pipes as follows: y Otherwise rust may be generated when moisture or
foreign matter due to condensation enters the pipes. y The rust cannot be removed by cleaning, and new
pipes are necessary.

Placement location
Outdoors
Indoors

Term
1 month or more Less than 1 month
Every time

Curing manner Pinching
Pinching or taping

Are there scratches or dents on the existing pipes?
NO
Is it possible to operate the existing air conditioner?
YES y After the existing air conditioner is operated in cooling
mode for approx. 30 minutes or longer, recover the refrigerant. y For cleaning the pipes and recovering oil Refrigerant recovery: Pump down method

YES NO

Existing pipes: Cannot be used. y Use new pipes.
Nitrogen gas pressure 0.5 MPa

y Remove the existing air conditioner from the piping and carry out flushing (nitrogen pressure 0.5 MPa) to remove any remains inside of the pipe.
Note: In case of twin pipes, also be sure to flush the branching pipe.
Was largely discolored oil or a large quantity of remains discharged? (When the oil deteriorates,
the color of the oil changes to a muddy or black color.)
NO
Connect the indoor / outdoor units to the existing pipe. y Use a flare nut attached to the main unit for the
indoor / outdoor units. (Do not use the flare nut of the existing pipe.) y Re- machine the flare machining size to size for R32 or R410A.
y (Airtight test), Vacuum dry, Refrigerant charge, Gas leak check
Test run

(If there is discharge of remains, it is judged that a large quantity of remains are present.)

YES

Clean the pipes or use new pipes.

Piping necessary to change the flare nut / machining size due to pipe compression