Panasonic CU-E18RKUA E18RKUA Installation Manual

PRINTED IN MALAYSIA

F616730

ENGLISH

Is there any gas leakage at flare nut

connections?

Has the heat insulation been carried out at flare

nut connection?

Is the connection cable being fixed to terminal

board firmly?

Is the connection cable being clamped firmly?

Is the drainage ok?

(Refer to “Check the drainage” section)

Is the earth wire connection properly done?

Is the indoor unit properly hooked to the

installation plate?

Is the power supply voltage complied with rated

value?

Is there any abnormal sound?

Is the cooling operation normal?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

Is the Air purifying filter installed?

CHECK ITEMS

Connecting The Piping to Indoor

3

4

5

6

F616730

Required tools for Installation Works

1

2

HOW TO FIX INSTALLATION PLATE

The mounting wall must be strong and solid enough to prevent it from the vibration.

SELECT THE BEST LOCATION

(Refer to “Select the best location” section)

The center of installation plate should be at more than

1

at right and left of the wall.

The distance from installation plate edge to ceiling should more than

2

.

From installation plate left edge to unit’s left side is

3

.

From installation plate right edge to unit’s right is

4

.

b

: For left side piping, piping connection for liquid should be about

5

from this line.

: For left side piping, piping connection for gas should be about

6

from this line.

1. Mount the installation plate on the wall with 5 screws or more (at least 5 screws).

(If mounting the unit on the concrete wall, consider using anchor bolts.)

•

Always mount the installation plate horizontally by aligning the marking-off line with the thread and using

a level gauge.

2. Drill the piping plate hole with ø2

3

/

4

" (ø70 mm) hole-core drill.

•

Line according to the left and right side of the installation plate. The meeting point of the extended line is

the center of the hole. Another method is by putting measuring tape at position as shown in the diagram

above. The hole center is obtained by measuring the distance namely 5

1

/

16

" (128 mm) for left and right

hole respectively.

•

Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side.

A

B

C

D

CUTTING AND FLARING THE PIPING

1. Please cut using pipe cutter and then remove the burrs.

2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder entering the pipe.

3. Please make flare after inserting the flare nut onto the copper pipes.

1. To cut

When properly flared, the internal surface of the

flare will evenly shine and be of even thickness.

Since the flare part comes into contact with the

connections, carefully check the flare finish.



Improper flaring



Inclined

Surface

damaged

Cracked Uneven

thickness

3. To flare

Bar

Red arrow mark

Handle

Core

Yoke

Clamp handle

Bar

0 –

1

/

32

"

(0 - 0.5 mm)

Copper

pipe

Reamer

2. To remove burrs

Point down

Pipe

TO DRILL A HOLE IN THE WALL AND

INSTALL A SLEEVE OF PIPING

19

/

32

" (15 mm)

Putty or caulking compound

ø2

3

/

4

" (ø70 mm)

through hole

Indoor

Outdoor

Sleeve for

tube

assembly

Approx.

7

/

32

" -

9

/

32

"

(5 - 7 mm)

Bushing for tube

assembly

Wall

CONNECT

THE CABLE TO THE INDOOR

UNIT

5

1. The inside and outside connection cable can be connected without

removing the front grille.

2. Unscrew the conduit cover and fix the conduit connector to conduit

cover with lock nut, then secure it against chassis.

3. Connecting wire between indoor unit and outdoor unit should be

UL listed or CSA approved 4 conductor wires minimum AWG16

in accordance with local electric codes.

•

Ensure the colour of wires of outdoor unit and terminal number

are the same as the indoor's repectively.

WARNING

This equipment must be properly earthed.

•

Earth lead wire shall be Yellow/Green (Y/G) in colour

and shall be longer than other lead wires as shown in

the figure for electrical safety in case of the slipping.

Earth Wire

longer than

others

AC wires

for safety

reason

Terminal

Board

Holder

Indoor and

outdoor

connection

cable

3

Please follow the steps below to take out front grille if necessary such as when

servicing.

1. Set the vertical airflow direction louvers to the horizontal position.

2. Slide down the 3 caps on the front grille as shown in the illustration at right,

and then remove the 4 mounting screws.

3.

Pull the lower section of the front grille towards you to remove the front grille.

•

Open front panel and remove air filters.

(Drainage checking can be carried out without removing the

front grille.)

•

Pour a glass of water into the drain tray-styrofoam.

•

Ensure that water flows out from drain hose of the indoor unit.

•

Operate the unit at cooling/heating operation mode for

fifteen minutes or more.

•

Measure the temperature of the intake and discharge air.

•

Ensure the difference between the intake temperature

and the discharge is more than 46.4°F (8°C) during

Cooling operation or more than 57.2°F (14°C) during

Heating operation.

Discharge air

1 Philips screw driver

2 Level gauge

3

Electric drill, hole core drill (ø2

3

/

4

"

(ø70 mm))

4 Hexagonal wrench (

5

/

32

"

(4 mm))

5 Spanner

6 Pipe cutter

7 Reamer

8 Knife

9 Gas leak detector

10 Measuring tape

11 Thermometer

12 Megameter

13 Multimeter

14 Torque wrench

13.3 Ibf•ft (18 N•m (1.8 kgf•m))

31.0 Ibf•ft (42 N•m (4.3 kgf•m))

40.6 Ibf•ft (55 N•m (5.6 kgf•m))

47.9 Ibf•ft (65 N•m (6.6 kgf•m))

73.8 Ibf•ft (100 N•m (10.2 kgf•m))

15 Vacuum pump

16 Gauge manifold

Wall

Wall

Wall

Installation plate

1

2

screw

More than

1

More than

1

Measuring

Tape

Indoor unit

9

17

/

32

"

(241.5 mm)

Drain

tray-

styrofoam

1. Open the front panel.

2. Remove the air filters.

3.

Put the air purifying filter into place as shown in illustration at right.

3

CONNECT THE PIPING

Please make flare after inserting flare nut (locate at

joint portion of tube assembly) onto the copper pipe.

(In case of using long piping)

Connect the piping

•

Align the center of piping and sufficiently tighten the

flare nut with fingers.

•

Further tighten the flare nut with torque wrench in

specified torque as stated in the table.

Decide piping length and then cut by using pipe cutter.

Remove burrs from cut edge.

Make flare after inserting the flare nut (locate at valve) onto

the copper pipe.

Align center of piping to valve and then tighten with torque

wrench to the specified torque as stated in the table.

Torque

wrench

Spanner or

Wrench

CONNECT THE CABLE TO THE

OUTDOOR UNIT

5

1. Remove control board cover (Resin and Metal).

2. Remove particular plate.

3. Remove plugs.

4. Fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel.

5. All wires pass through conduits & particular plate’s opening hole.

6. Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor

wires minimum AWG16 in accordance with local electric codes.

7. Wire connection to the power supply (208/230V 60Hz) through circuit breaker.

•

Connect the UL listed or CSA approved wires minimum AWG12 to the terminal board, and connect

the other end of the wires to ELCB / GFCI.

8. Connect the power supply cord and connecting wire between indoor unit and outdoor unit according to

the diagram below.

9. Secure the wire onto the control board with the holder (clamper).

10. After completing wiring connections, reattach the particular plate and control board cover (metal and

resin) to the original position with the screws.

11. For wire stripping and connection requirement, refer to instruction

5

of indoor unit.

More than

2

2

9

/

16

"

(65 mm)

or more

8 ft (2.4 m)

or more

(Left and right are identical)

Floor / Grade level

• Carry out insulation after

checking for gas leaks and

secure with vinyl tape.



Vinyl tape

•

This illustration is for

explanation purposes only.

The indoor unit will actually face

a different way.

It is advisable to

avoid more than 2

blockage directions.

For better ventilation

& multiple-outdoor

installation, please

consult authorized

dealer/specialist.

Installation plate

1

Sleeve (



)

Bushing-Sleeve (



)

Bend the pipe as

closely on the wall as

possible, but be careful

that it doesn’t break.

Saddle (



)

Example: For E18RKUA

If the unit is installed at 41 ft (12.5 m) distance, the quantity of additional

refrigerant should be 2.46 oz (62.5 g)

....

(41 - 32.8) ft x 0.3 oz/ft = 2.46 oz.

((12.5 - 10) m x 25 g/m = 62.5 g).

Conduit

(Power supply cord (



))

Attached accessories

Control Board cover

Remote control holder fixing screws

6

Remote control holder

5

Remote

control

3

Additional drain hose

Gas side piping (



)

Conduit

(Connection cable)

Putty (



)

(Gum Type Sealer)

Installation parts you

should purchase (



)

Vinyl tape (wide) (



)

• Apply after carrying

out a drainage test.

• To carry out the

drainage test,

remove the air filters

and pour water into

the heat exchanger.

Liquid side piping (



)

Chassis

Conduit

Connector

Conduit

Cover

Lock Nut

Rear Side of Indoor Unit

Holder

Holder

Power

supply

cord

Indoor &

outdoor

connection

cable

Terminal

Board

Terminal

Board

Earth wire

longer than

others

AC wires

for safety

reason

Earth wire

longer than

others

AC wires

for safety

reason

Control Board

Cover (Metal)

Lock Nuts

Knockout

Holes

Plugs

Connectors

Control Board

Cover (Resin)

Front Panel

Connecting Wires

Particular Plate’s

opening holes

Particular

Plate

Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system.

If the pressure holds, release the nitrogen and proceed to section 4.

WARNING

Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child may climb up to outdoor unit and

cross over the handrail causing an accident.

Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with other electrical appliances. Poor

contact, poor insulation or over current will cause electrical shock or fire.

Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.

Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.

Do not sit or step on the unit, you may fall down accidentally.

Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.

When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration cycle (piping).

Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.

Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.

●

For R410A model, use piping,

fl

are nut and tools which is speci

fi

ed for R410A refrigerant. Using of existing (R22) piping,

fl

are nut and tools may cause abnormally

high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.

●

Thickness or copper pipes used with R410A must be more than

1

/

32

"

(0.8 mm)

. Never use copper pipes thinner than

1

/

32

" (0.8 mm)

.

●

It is desirable that the amount of residual oil is less than 0.0008 oz/ft (

40 mg/10 m)

.

Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical shock or fire.

Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.

Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done, the set will drop

and cause injury.

For installation work, follow all electrical, building, plumbing, local codes, regulations and these installation instructions. If electrical circuit capacity is not enough or a

defect is found in electrical work, it will cause electrical shock or fire.

Do not use spliced wires for indoor / outdoor connection cable. Use the specified indoor / outdoor connection cable, refer to instruction

5

INDOOR/OUTDOOR

UNIT ELECTRICAL WIRING

and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force will have impact on the terminal. If

connection or fixing is not perfect, it will cause heat-up or fire at the connection.

Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause fire or electrical shock.

This equipment must installed with an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Current Interrupter (GFCI) or Appliance Leakage Current Interrupter

(ALCI) that has been certified by an NRTL Certified Testing Agency and that is suitable for the voltages and amperages involved. Otherwise, if may cause electrical

shock and fire in case of equipment breakdown.

During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing refrigeration piping and valves at opened

condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.

During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping while compressor is operating and valves

are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may break and cause refrigerant

gas leakage.

After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant comes into contact with fire.

Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant comes into contact with fire.

This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone. Otherwise, it may cause

electrical shock in case of equipment breakdown or insulation breakdown.

CAUTION

Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire.

Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may

cause frostbite.

Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

Do not touch the sharp aluminium fin, sharp parts may cause injury.

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture.

Select an installation location which is easy for maintenance.

Power supply connection to the room air conditioner.

Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG12 wires.

Power supply point should be in an easily accessible place for power disconnection in case of emergency.

In some countries, permanent connection of this air conditioner to the power supply is prohibited.

Fix power supply connection to a circuit breaker for the permanent connection.

Use NRTL approved fuse or circuit breaker (rating refers to name plate) for the permanent connection.

Installation work.

It may take two people to carry out the installation work.



Do not install the unit in excessive oil fume areas such as kitchens,

workshops etc.



There should not be any heat source or steam near the unit.



There should not be any obstacles blocking the air circulation.



A place where air circulation in the room is good.



A place where drainage can be easily done.



A place where noise prevention is taken into consideration.



Do not install the unit near a doorway.



Ensure the spaces indicated by arrows from the wall, ceiling, fence

or other obstacles.



Recommended installation height for indoor unit shall be at least

8 ft (2.4 m).



If an awning is built over the unit to prevent direct sunlight or rain,

be careful that heat radiation from the condenser is not obstructed.



There should not be any animal or plant which could be affected by

hot air discharged.



Keep the spaces indicated by arrows from wall, ceiling, fence or

other obstacles.



Do not place any obstacles which may cause a short circuit of the

discharged air.



If piping length is over the [piping length for additional gas],

additional refrigerant should be added as shown in the table.



Recommended installation height for outdoor unit should be above

the seasonal snow level.

INDOOR UNIT

OUTDOOR UNIT


Model

Capacity

(Btu/h)

Piping size

Std.

Length

Max.

Elevation

Min.

Piping

Length

Max.

Piping

Length

Additional

Refrigerant

Piping

Length

for add.

gas

Gas

Liquid

E18RKUA

17200

1/2"

(

12.7 mm)

1/4"

(

6.35 mm)

24.6 ft

(

7.5 m)

49.2 ft

(

15 m)

9.8 ft

(

3 m)

100.0 ft

(

30.5 m)

0.3 oz/ft

(

25 g/m)

32.8 ft

(

10 m)

E24RKUA

24000

5/8"

(

15.88 mm)

Piping direction

Attention not to bend

up drain hose

(Front side)

Right

Rear

Right

bottom

Left

Rear

Left bottom

Left

Indoor/Outdoor Unit Installation Diagram

Insulation of piping connections

Attaching the remote control holder to the wall

Model

Dimension

1

2

3

4

5

6

E18RKUA, E24RKUA

23

7

/

32

"

(590 mm)

3

7

/

32

"

(82 mm)

21

7

/

32

"

(539 mm)

20

15

/

16

"

(532 mm)

6

21

/

32

"

(169 mm)

8

5

/

8

"

(219 mm)

Model

A

B

C

D

E18RKUA, E24RKUA

24 1/8"

(613 mm)

5 5/32"

(131 mm)

5/8"

(16 mm)

14 3/16"

(360.5 mm)

INSTALLATION OF AIR

PURIFYING FILTER

HOW TO TAKE OUT FRONT GRILLE

When reinstalling the front grille, first set

the vertical airflow direction louver to the

horizontal position and then carry out

above steps 2 - 3 in the reverse order.

AUTO SWITCH OPERATION

CHECK THE DRAINAGE

EVALUATION OF THE PERFORMANCE

Connecting The Piping to Outdoor

Gas Leak Checking

Do not overtighten, over tightening may cause gas leakage.

Piping size

Torque

1/4" (6.35 mm)

13.3 Ibf•ft [18 N•m (1.8 kgf•m)]

3/8" (9.52 mm)

31.0 Ibf•ft [42 N•m (4.3 kgf•m)]

1/2" (12.7 mm)

40.6 Ibf•ft [55 N•m (5.6 kgf•m)]

5/8" (15.88 mm)

47.9 Ibf•ft [65 N•m (6.6 kgf•m)]

3/4" (19.05 mm)

73.8 Ibf•ft [100 N•m (10.2 kgf•m)]

No.

Accessories part

Qty.

No.

Accessories part

Qty.

1

Installation plate

1

6

Remote control

holder fixing screw

2

2

Installation plate fixing

screw

5

7

Air purifying filter

1

3

Remote Control

1

8

Drain elbow

1

4

Battery

2

9

Drain hose adapter

1

5

Remote control holder

1

1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the

3-way valve.

2. Connect the micron gauge between vacuum pump and service port of outdoor units.

3. Turn on the power switch of the vacuum pump and make sure that connect digital micron gauge

and to pull down to a value of 500 microns.

4. To make sure micron gauge a value 500 microns and close the low side valve of the charging set and

turn off the vacuum pump.

5. Disconnect the vacuum pump house from the service port of the 3-way valve.

6.

Tighten the service port caps of the 3-way valve at a torque of 13.3 Ibf•ft (18 N•m) with a torque wrench.

7.

Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “Open”

using a hexagonal wrench (5/32" (4 mm)).

8. Mount valve caps onto the 2-way valve and the 3-way valve.

•

Be sure to check for gas leakage.

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR

UNIT AND PIPES in the following procedure.

4

EVACUATION OF THE EQUIPMENT

Gas side

Liquid side

Outdoor unit

Three-way valve

Indoor unit

Vacuum

pump

Close

Close

•

If micron gauge value does not descend 500 microns, take the following measures:

-

If the leak stops when the piping connections are tightened further, continue working from step

3

.

-

If the leak does not stop when the connections are retightened, repair location of leak.

-

Do not release refrigerant during piping work for installation and reinstallation.

-

Be careful with the liquid refrigerant, it may cause frostbite.

Two-way valve

•

IMPORTANT (only for E18RKUA)

This product has been designed and manufactured to meet

ENERGY STAR

®

criteria for energy efficiency when matched with appropriate coil components. However,

proper refrigerant charge and proper air flow are critical to achive rated capacity and efficiency. Installation of this product should follow the manufacturer’s

refrigerant charging and air flow instructions.

Failure to con

fi

rm proper charge and air

fl

ow may reduce energy ef

fi

ciency and shorten equipment life.

The below operations will be performed by pressing the “AUTO” switch.

1. AUTO OPERATION MODE

The Auto operation will be activated immediately once the Auto Switch is pressed

and released before 5 sec..

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)

The Test Run operation will be activated if the Auto Switch is pressed continuously for

more than 5 sec. to below 8 sec..

A “pep” sound will occur at the fifth sec., in order to identify the starting of Test Run

operation.

3. HEATING TRIAL OPERATION

Press the “AUTO” switch continuously for more than 8 sec. to below 11 sec. and release when a “pep

pep” sound is occured at eight sec. (However, a “pep” sound is occurred at fifth sec..) then press

Remote controller “A/C Reset” button once. Remote controller signal will activate operation to force

heating mode.

4. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote controller receiving sound can be change over by the following steps:

a) Press “AUTO” switch continuously for more than 16 sec. to below 21 sec..

A “pep”, “pep”, “pep”, “pep” sound will occur at the sixteenth sec..

b) Press the “A/C Reset” button once. Remote controller signal will activate the Remote controller sound

setting mode.

c) Press the “AUTO” switch once to select Remote controller receiving sound ON/OFF. A “peep” sound

indicates receiving sound ON, and a “pep” sound indicates receiving sound OFF.



If a drain elbow is used, the unit should be placed on a stand

which is taller than 1

3

/

16

" (30 mm).



If the unit is used in an area where temperature falls below

32°F (0°C) for 2 or 3 days in succession, it is recommended

not to use a drain elbow, for the drain water freezes and the

fan will not rotate.

Hose

Drain elbow

8

Install the hose at an angle so that the water smoothly flows out.

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

1

31

/

32

"

(50 mm)

or more

3

15

/

16

"

(100 mm)

or more

3

15

/

16

"

(100 mm)

or more

39

3

/

8

"

(1000 mm)

or more

11

13

/

16

"

(300 mm)

or more

5

1

/

16

"

(128 mm)

9

17

/

32

”

(241.5 mm)

5

1

/

16

"

(128 mm)

5

1

/

16

" (128 mm)

Applicable piping kit

Piping size

Gas

Liquid

CZ-3F5, 7BP

3/8" (9.52 mm)

1/4" (6.35 mm)

CZ-4F5, 7, 10BP

1/2" (12.7 mm)

1/4" (6.35 mm)

CZ-52F5, 7, 10BP

5/8" (15.88 mm)

1/4" (6.35 mm)

•

Pipe size reducer (CZ-MA1P) for outdoor Multi connection

CS-E18RKUA

•

Pipe size reducer (CZ-MA3P) for outdoor Multi connection

CS-E24RKUA

SAFETY PRECAUTIONS

•

Read the following “SAFETY PRECAUTIONS” carefully before installation.

•

Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed.

•

The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.

Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.

WARNING

This indication shows the possibility of causing death or serious injury.

CAUTION

This indication shows the possibility of causing injury or damage to properties only.

The items to be followed are classified by the symbols:

Symbol with white background denotes item that is PROHIBITED.

Symbol with dark background denotes item that must be carried out.

•

Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and maintenance as stated in

instructions. Please remind the customer to keep the operating instructions for future reference.

Cover for

the bottom

piping

Tape it with piping in a

position as mentioned

in Fig. below.

Cover for

the right

piping

Piping

Drain hose

Cover for

the left

piping

Drain hose

Sleeve for

piping hole

Indoor unit

Hooks at

installation

plate

Piping

1. FOR THE RIGHT REAR PIPING

Cover for the

bottom piping

Cover for the

bottom piping

Tape it with piping

in a position as

mentioned in Fig.

below.

Piping

Drain

hose

Cover

for the

left

piping

Cover for piping

In case of the cover is cut, keep

the cover at the rear of chassis as

shown in the illustration for future

reinstallation.

(Left and 2 bottom covers for piping.)

How to keep the cover

marking

Installation

plate

Unit’s

hook

Guide

surface

Connection cable

About

2

3

/

4

" - 3

5

/

32

"

(70 - 80 mm)

Connection cable

Gas side

piping

Liquid side

piping

Drain hose

2. FOR THE RIGHT BOTTOM

PIPING

3. FOR THE EMBEDDED PIPING

(This can be used for left rear piping and bottom piping also.)

Right Rear piping

Right and Right Bottom piping

Install the indoor unit

Hook the indoor unit

onto the upper portion

of installation plate.

(Engage the indoor unit

with the upper edge of the

installation plate). Ensure

the hooks are properly

seated on the installation

plate by moving it in left

and right.

Insert the connection cable

Secure the Indoor Unit

1. Press the lower left and

right side of the unit against

the installation plate until

hooks engages with their

slot (sound click).

To take out the unit, push

the

marking at the

bottom unit, and pull it

slightly towards you to

disengage the hooks from

the unit.

Step-1

Pull out the Indoor piping

Step-2

Install the Indoor Unit

Step-3


Step-4


Step-1

Pull out the Indoor piping

Step-2


Step-3


Step-4


Step-1

Replace the drain hose

Step-2

Bend the embedded piping

•

Use a spring bender or

equivalent to bend the piping so

that the piping is not crushed.

Step-3

Pull the connection cable

into Indoor Unit

•

The inside and outside

connection cable can be

connected without removing the

front grille.

Step-4

Cut and flare the embedded

piping

•

When determining the

dimensions of the piping, slide

the unit all the way to the left on

the installation plate.

•

Refer to the section “Cutting and

flaring the piping”.

Step-5


Step-6

Connection the piping

•

Please refer to “Connecting

the piping” column in outdoor

unit section. (Below steps are

done after connecting the

outdoor piping and gas-leakage

confirmation.)

Step-7

Insulate and finish the

piping

•

Please refer to “Piping and

finishing” column of outdoor

section and “Insulation of

piping connection” column as

mentioned in indoor/outdoor unit

installation.

Step-8


•

How to pull the piping and drain hose out, in case of the

embedded piping.

•

In case of left piping how to insert the

connection cable and drain hose.

2

27

/

32

" (72 mm)

More than

18

1

/

2

" (470 mm)

More than

45

9

/

32

"

(1150 mm)

More than 27

9

/

16

"

(700 mm)

Indoor unit

drain hose

3/4" (20 mm) nominal PVC pipe

- Install incline downward more than 1°

- Apply PVC glue at the join.

Drain hose adapter

9

Close join by Vinyl Tape (

)

Remarks :

Make sure indoor unit drain hose

& 3/4" (20 mm) nominal PVC pipe

are fully inserted to drain hose

adapter

9

.

Rear view for left piping installation

Drain cap

Drain hose

Adjust the piping slightly

downwards.

Drain hose

Connection cable

PVC tube

for drain

hose

Indoor unit

Piping

Cable

Apply putty or

caulking material

to seal the wall

opening.

Connection cable

Piping

PVC tube (VP-65) for piping

and connection cable

PVC tube for drain hose (VP-30)

PVC tube for drain

hose (VP-20)

Drain hose

from main unit

Replace the drain hose

Cable

45°

Drain

hose

Piping

Sleeve for piping hole

Drain hose

Piping

Connection

cable

More than 45

9

/

32

"

(1150 mm)

(For the right piping, follow the same

procedure)

•

Join indoor drain hose to 3/4"

(20 mm) nominal PVC pipe size

by using drain hose adapter

9

when necessary.

Drain hose adapter

9

usage

INDOOR UNIT INSTALLATION

4

Outdoor Unit

1

2

3

1

2

L1

L2

3

Terminal

Terminal

Indoor Unit

Disconnect

Switch

Field supply

Grounding wire

Grounding wire min AWG16

Power Supply

Single Phase

208/230V 60Hz

min AWG12

208/230V min AWG16

208/230V min AWG16

208/230V min AWG16

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge.

Make flare after inserting the flare nut (locate at valve) onto the copper pipe.

Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the

table.

Hall Union

Flare Nut

Pipe Size

Reducer

Packing

Torque Wrench for Flare

Nut and Pipe Size Reducer

Wrench

(Adjustable Wrench)

Applicable to

Gas side of

CS-E18RKUA

CS-E24RKUA

(Connection pipe)

(Auxiliary pipe)

Female side

Male side

Hall Union

Flare Nut

(Auxiliary pipe)

(Connection pipe)

Applicable to

Liquid side of

CS-E18RKUA

CS-E24RKUA

Torque Wrench

for Flare Nut

Wrench

(Adjustable Wrench)

Male side

Female side

Connecting The Piping to Outdoor Multi

1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation

Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.

2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation

by using POLY-E FOAM with thickness 1/4" (6 mm) or above.

PIPING INSULATION

6

•

After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut ø

13

/

32

" (ø10 mm).

2. When installing at roof, please consider strong wind and earthquake.

Please fasten the installation stand firmly with bolt or nails.


(Refer to “Select the best location” section)

1

INSTALL THE OUTDOOR UNIT

2

INDOOR UNIT

OUTDOOR UNIT

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

3. Cut the sleeve until it extrudes about

19

/

32

"

(15 mm) from the wall.

CAUTION

When the wall is hollow, please be sure

to use the sleeve for tube assembly to

prevent dangers caused by mice biting

the connection cable.

4. Finish by sealing the sleeve with putty or

caulking compound at the final stage.

Terminals on the indoor unit

1

2

3

Colour of wires (Connecting wire)

Terminals on the outdoor unit

1

2

3

WARNING

This equipment must be properly earthed.

•

Earth lead wire shall be Yellow/Green (Y/G) in colour and longer than other lead wires for electrical

safety in case of the slipping.

For best strength of

INDOOR unit installation,

it is highly recommended

to locate “

” at 5 position

as shown.

WARNING

RISK OF FIRE

JOINING OF WIRES

MAY CAUSE

OVERHEATING

AND FIRE.

OR

OR

OR

Wire stripping

No loose strand

when inserted

WIRE STRIPPING,

CONNECTING

REQUIREMENT

Conductor

fully inserted

Conductor

over inserted

Conductor not

fully inserted

ACCEPT

PROHIBITED

PROHIBITED

Use complete wire without joining.

Use approved socket and plug with earth pin.

Wire connection in this area must follow to

national wiring rules.

Do not joint wires

13/32" ± 1/16"

(10±1 mm)

Indoor/outdoor

connection

terminal board

7

/

32

"

(5 mm)

or more

(gap between wires)

Piping

Piping

Shock absorber

Intake grille



Do not turn over the unit without it’s shock absorber during pull out the piping.

It may cause intake grille damage.



Use shock absorber during pull out the piping to protect the intake grille from damage.

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Air purifying filter

7

Air filter

Cap

Screw

(Move the vane

to upward)

Vane

Cap

Vane

Front grille

ECO SENSOR

•

Do not hit or violently press the sensor.

This can lead to damage and malfunction.

•

Do not place large objects near the sensor and keep heating units

or humidifiers of the sensor’s detection area.

This may lead to sensor malfunction.

ECO SENSOR

* Ensure all connecting wire

between indoor unit and

outdoor unit and power supply

cord are installed in individual

conduit.

Panasonic CU-E18RKUA E18RKUA Installation Manual

Panasonic CU-E18RKUA Manual

Panasonic CU-E18RKUA manual content summary: