Hitachi RAC-S10C Скачать руководство пользователя страница 2

OUTDOOR UNIT

Please mount the outdoor unit on stable ground
to prevent vibration and increase of noise level.

Decide the location for piping after sorting out
the different types of pipe available.

Please face this side (suction side)
of the unit to the wall

Please remove
the cover for
wire connection.

Procedure to remove the cover of

wiring terminals

Remove the screw (1
piece).

Hold the projected part at
the lower left of the cover
and push the cover
upwards to remove it.

To close the cover, insert
the upper part of the
cover into the body of
outdoor unit, then be sure
that the hook below the
cover is plugged in before
screwing.

Hook

   Removal Of Air From The Pipe And Gas Leakage Inspection

   Preparation of Pipe

1

Use a pipe cutter to cut the copper pipe.

Jagged edge will cause leakage.

Point the side to be trimmed downwards during trimming to prevent copper chips from
entering the pipe.

Before flaring, please put on the hexagon screw cap.

Spanner

Torque
wrench

Hexagon
screw nut

   Pipe Connection

2

Please be careful when bending the copper pipe.

Applied frozen grease to the connection points and then screw in manually. After that, use
a torque wrench to tighten the connection.

INST

ALLA

TION OF COOLANT PIPES AND AIR REMO

VA

L

Procedures of using Vacuum Pump for Air Removal

3

AIR REMO

V

A

L

CAUTION

!

Outer

diameter

of pipe

6.35 (1/4")

9.52 (3/8")

Valve head cap

Valve core cap

Torque N.m

(kgf 

 cm)

13.7 – 18.6 (140 – 190)

34.3 – 44.1 (350 – 450)

19.6 – 24.5 (200 – 250)

12.3 – 15.7 (125 – 160)

Small diameter side

Big diameter side

As shown in figure on the right, remove
the cap of valve head and valve core
and then connect them to the vacuum
pump and  sub-division valve.

Fully tighten the “Hi” shuttle of the sub-
division valve and completely unscrew
the “Lo” shuttle. Run the vacuum pump
for about 10–15 minutes, then completely
tighten the “Lo” shuttle and switch off
the vacuum pump.

2

Completely unscrew the spindle of the
service valve (at 2 places) in anti-
clockwise direction to allow the flow of
coolant (using Allen key).

3

Remove the connection pipe and tighten
the cap of valve head. The task is then
completed.

4

Gas Leakage Inspection

Please use gas leakage detector to check if leakage occurs at
the connection of hexagon screw nut as shown on the right.

If gas leakage occurs, further tighten the connection to stop
leakage.

The body of
service valve

Cap of
valve core

Allen key

Cap of valve head

Cap of valve head

A

Mould

Mould

Copper pipe

Copper pipe

Trimming tool

Outer

Diameter (ø)

6.35 (1/4")

9.52 (3/8")

Imperial flaring tool

0.8  – 1.5

1.0  – 1.8

Rigid flaring tool

0  – 0.5

0  – 0.5

A (mm)

1

CONNECTION OF POWER CORD

WARNING

!

FINAL ST

A

GE OF INST

ALLA

TION

Insulation And Maintenance Of Pipe Connection

1

The connected terminals should be completed sealed with
heat insulator and then tied up with rubber strap.

Please tie the pipe and power line together with plastic tape
as shown in the figure of installation of both the indoor and
outdoor units. Then fix their position with holders.

To enchance the heat insulation and to prevent water
condensation, please cover the outdoor part of the drain hose
and pipe with insulation pipe.

Completely seal any gap with putty.

  Installation Of Remote Control

2

  Earth Line And Circuit Breaker

3

  Power Source And Operation Test

4

The remote controller can be placed in its holder which is
fixed on wall or beam.

To operate the remote controller at its holder, please ensure
that the unit can receive signal transmitted from the controller
at the place where the holder is to be fixed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the florescent light. Therefore, during
the installation of the remote control holder, please switch on
the light, even during day time, to determine the mounting
location of the holder.

CAUTION

!

The earth line terminal of the outdoor unit is below the
service valve.

To avoid short circuit, it is necessary to install circuit breaker
depending on the mounting location of the unit.

Do not place earth line near the following objects:
(1) Water pipe
(2) Gas pipe – There is danger of catching fire.
(3) The earth line of lightning conductor and telephone —

short circuit may occur during lightning.

Power Source

WARNING

!

Do not alter the plug of power cord.
Do not make extension to the power cord.

CAUTION

!

Please use a new socket. Accident may occur due to the
use of old socket because of poor contact.

Please plug in and then remove the plug for 2 – 3 times.
This is to ensure that the plug is completely plugged into
the socket.

Keep additional length for the power cord and do not render
the plug under external force as this may cause poor
contact.

Do not fix the power cord with U-shape nail.

Operation Test

Please ensure that the air conditioner is in normal operating
condition during the operation test.

Explain to your customer the proper operation procedures
as described in the user’s manual.

Insulation material for pipe connection

Sleeve of
protection pipe

Putty

WARNING

You may not be able to close the side cover due to
the connecting cord, under such situation, please
press against the wait of side cover to fix it.

Be sure that the hooks (2 places) are plugged in.
Otherwise, water leakage may occur and this causes
short circuit or faults.

THIS APPLIANCE MUST BE EARTHED.

Procedures of Wiring

Wiring Of The Outdoor Unit

Please remove the side cover for wire connection.

WARNING

Power supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach the specified capacity.

Detail of cutting the connecting cord

To remove the connecting wires for
the indoor unit, please remove the low
cover panel in front of the unit.

!

!

How to Remove the Front Cover

Open the cover    and remove the screw.

After open the front panel, remove the screw and open the
cover   .

Remove the filter, release the axis by pulling the center portion of
front cover in the direction of arrow    .

Push vertical air deflector handle to the right or left side.

After raise the front cover from bottom side as    , release the front
cover by pull the right or left sides as    .

How to Install the Front Cover

Insert the two hooks    at the upper side certainly.

Open Front Panel, push the center down in the direction of the arrow
to insert the axis at the center of the front cover into the hook at the
outlet frame.

Fixed the screw and cover     and    .

<

I855: A 

>

Connection wire
is put under here

Side cover

Blue

ll

A

Brown

II
B

Connection wire

Screw for earth line

Indoor Unit

AC 220-240V

Outdoor Unit

Connecting Cord

Strip Wires

Indoor

Unit

Outdoor

Unit

GRN + YEL

GRN + YEL

B

A

B

A

Line Cord

Brown (L)

Blue (N)

Green & Yellow

2.0

45mm

10mm

30mm

10mm

10mm

70mm

35mm

A, B, 

A, B, 

Use 20A time delay FUSE

Connect the
earth cord

After remove the
screw and band,
put the connecting
cords and fix the
band with screw.

A

B

Wiring Of The Indoor Unit

For wire connection of the Indoor unit, you need to remove front panel and electrical cover.
Method to remove front panel

Refer to “How to Remove The Front Cover”.

Method to remove electrical cover

Remove the screw and electrical cover.

Insert the connecting cord (A, B) from the bottom of unit.

Fixed the wire to terminal wires firmly as shown in figure at right side.

AUTO

RESTART

SWITCH

Electrical cover

Screw

1

6

2

3

4

5

1

6

1

2

1

3

4

Screw

Cover

Front panel

Front Cover

Vertical Air Deflector Handle

Screw

7

6

5

5

1

1

2

2

The controller should be insert from top into bottom side of
the holder as shown in figure below.

Remote
Controller

Holder

The naked part of the wire core should be 10 mm and fix it to the terminal tightly. Then try to pull the individual wire to check
if the contact is tight. Improper insertion may burn the terminal.

Be sure to use only power cables approved from the authorities in your country. For example in Germany: Cable type: NYM
3x1.5mm

2

, (fuse = 20A time delay)

Please refer to the installation manual for wire connection to the terminals of the units. The cabling must meet the standards of
electrical installation.

There is a AC voltage of 220V between the L and N terminals. Therefore, before servicing, be sure to remove the plug from the
AC outlet or switch off the main switch.

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