Hitachi RAC-10GH5 Скачать руководство пользователя страница 2

• Please mount the Outdoor unit of stable ground to prevent vibration and increase

of noise level.

• Decide the location for piping after sorting out the different types of pipe available.
• When removing side cover, please pull the handle after undoing the hook by pulling

it downward. Reinstall the side cover in the reverse order of the removal.

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

Please remove terminal cover
when connecting the piping
and connecting cord.

CONDENSED WATER DISPOSAL OF OUTDOOR UNIT

• There is holes on the base of Outdoor unit for condensed water to exhaust.
• In order to flow condensed water to the drain, the unit is installed on a stand or a

block so that the unit is 100mm above the ground as shown figure.  Join the drain
pipe to one hole.

• After installation, check whether the drain pipe clings to the base firmly.

• Install the outdoor unit horizontally and make sure that condensate drains away.
• In case of using in chilly area

Especially, in case that there are many snows by very cold in chilly area, condensed
water freezes on the base and may result not to drain.  In this case, please remove
the bush and the drain pipe at the bottom of unit.  (Left and center near discharge
portion of air, each 1 place).  It becomes smooth drain.
Ensure that the distance from the drain hole to the ground is 250 mm or more.

 CAUTION

• Remove burr and jagged edge will cause leakage.
• Point the side to be trimmed downwards during trimming to prevent copper

chips from entering the pipe.

Copper pipe

Trimming tool

• Before flaring, please put on the flare nut.

A

Die

Die

Copper pipe

• Please use

exclusive tool for
refrigerant R410.

Outer                           A (mm) Rigid Flaring Tool

Diameter (Ø)

For R410A tool

For R22 tool

6.35 (1/4")

0 - 0.5

1.0

9.52 (3/8")

0 - 0.5

1.0

2

Pip

e

 Conn

ec

tion

 CAUTION

• In case of removing flare nut of a indoor unit, first remove

a nut of small diameter side, or a seal cap of big diameter
side will fly out. Free from water into the piping when
working.

• Be sure to tighten the flare nut to the specified torque with

a torque wrench.
If the flare nut is overtightened, the nut may be split after a
long period has passed, and may cause a refrigerant  leak.

• Please be careful when bending the copper pipe.
• Screw in manually while adjusting the center. After that, use a torque wrench to

tighten the connection.

INST

ALLA

TION OF REFRIGERA

TING PIPES AND AIR REMO

V

A

L

Torque
wrench

Flare nut

Wrench

Small diameter side

6.35 (1/4")

13.7 – 18.6 (140 – 190)

Large diameter side

9.52 (3/8")

34.3 – 44.1 (350 – 450)

           Small diameter side

6.35 (1/4")

19.6 – 24.5 (200 – 250)

           Large diameter side 9.52 (3/8")

19.6 – 24.5 (200 – 250)

                      Valve core cap

12.3– 15.7 (125 – 160)

Torque N·m

(kgf·cm)

Valve

head cap

3

R

e

mov

e

 of Air From Th

e

 Pip

e

 And Ga

s

 L

e

akag

e

 In

s

p

ec

tion

AIR REMO

V

A

L

Procedures of using Vacuum Pump for Air Removal

As shown in right figure, remove the cap
of valve core.  Then, connect the charge
hose. Remove the cap of valve head.
Connect the vacuum pump adapter to the
vacuum pump and connect the charge
hose to the adapter.

1

Fully tighter the "Hi" shuttle of the manifold
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.
• Loosen the spindle of the service valve

with small diameter by 1/4 turn and
tighten the spindle immediately after 5
to 6 seconds.

• Remove the charging hose from the

service valve.

2

Completely unscrew the spindle of the
service valve (at 2 places) in anticlockwise
direction to allow the flow of refrigerant
(using Hexagonal Wrench key).

3

Tighten the cap of valve head.  Check the
cap's periphery if there is any gas leakage.
The task is then completed.

4

When the meter reaches - 101KPa
(-76cmHg) during pumping fully
tighten the shuttle.

Meter showing
pressure

Closed

R410A
Manifold
valve

Vacuum
pump

Valve

Charge
hose

Vacuum
pump
adapter

When pumping starts, slightly
loosen the flare nut to check of
air sucked in.  Then tighten the
flare nut.

The body of service
valve

Cap of
valve core

Hexagonal
wrench Key

Cap of valve
head

   Gas leakage inspection

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

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

CONNECTION OF PO

WER CORD

OUTDOOR UNIT

FINAL ST

A

GE OF INST

ALLA

TION

1

Pr

e

paration of Pip

e

• Use a pipe cutter to cut the copper pipe and remove burr.

How to remove the front cover

How to Attach the Front Cover

¡

Check that the drain pan is securely attached.

After installing the front cover onto the unit, hook three claws
at upper side of the cover securely. Then, push the center of
the front cover to lock the claws.

£

Tighten the two screws.

¢

Install the filter.

Slide the shafts of the right and left arms on the front panel
along the steps to insert the shafts into the holes till they stop.
After checking that the shafts are securely inserted, close the
panel.

¡

Remove the front panel

• Please remove and attach the front panel by both hands.

• After opening the front panel by both hands.

1

Undo the right arm while pushing it inside.

2

Slide the front panel to right as shown in figure. Then remove
while pulling it to front.

Remove the filters.

£

After removing two screws, pull the center of the front cover
towards you and release the claws.

¢

Pull the side faces (lower sections) of the front cover towards
you as shown in the figure and remove the cover.

Cap of valve
head

< S4249 : 

>

Valve

Step

Shaft

Hole

 CAUTION

• Do not touch the suction

por t, bottom surface, or
aluminum fin of the outdoor
unit.
Failure to do so may cause
an injury.

• Push up the [PUSH] sections at the bottom of the indoor unit and

pull the bottom plate towards you. Then the claws are released
from the stationary plate.
(The [PUSH] sections are indicated by 2 arrows in the right figure)

HOW TO REMOVE INDOOR UNIT

[PUSH] mark positions

Outer diameter

of pipe (ø)

 DRAIN PIPE

DRAIN HOLE

above
100mm

BASE

Outer diameter: 16 mm or more

RAC-14GH5

RAC-10GH5

Be sure to use only wire specified for the use of air-conditioner.
Please refer to the manual for wire connection and the wiring technique should meet the standards of the electrical
installation.
There is a  AC voltage drop between the AB terminal if the power is on. Therefore, be sure to remove the plug from its socket.

THIS APPLIANCE MUST BE EARTHED.

Procedures of Wiring

Wiring Of The Outdoor Unit

Please remove the side cover for wire connection.

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

Wiring Of The Indoor Unit

   

Procedures of Wiring
  Open the front panel, loosen and remove the screw at the electric box cover located at the right side of front cover.
  Loosen and remove the screw fixing inner cover (sheet metal).
  After inserting the connecting cords from the s-cover of air outlet, bend the tips of connecting cords as shown in the figure below.
  Fix the cords securely to the inner cover (sheet metal) according to their respective colors. (Tightening torque: 5kgf·cm).
  After the wiring is done, reinstall the inner cover (sheet metal) and the electric box cover accordingly.

WARNING

WARNING

RAC-14GH5

RAC-10GH5

Wire clamp for 
power cord

cover

white black red

yellow

A

B

C
D

A

B

C
D

AC 230V

A

B

C

D

5

Terminal cover 

The e

a

rth l

i

ne term

i

n

a

l of the outdoor un

i

i

s below the

serv

i

ce v

a

lve.

To 

a

vo

i

d short c

i

rcu

i

t, 

i

i

s necess

a

ry to 

i

nst

a

ll c

i

rcu

i

t bre

a

ker

depend

i

ng on the mount

i

ng loc

a

t

i

on of the un

i

t.

Do not pl

a

ce e

a

rth l

i

ne ne

a

r the follow

i

ng ob

j

ects

:

(1) W

a

ter p

i

pe

(2) G

a

s p

i

pe — There 

i

s d

a

nger of c

a

tch

i

ng f

i

re.

(3) The e

a

rth l

i

ne of l

i

ghtn

i

ng conductor 

a

nd telephone —

short c

i

rcu

i

t m

a

y occur dur

i

ng l

i

ghtn

i

ng.

CAUITON

n

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

burn the terminal.

tight. Improper insertion may

Pull at the 

¡

 and 

 in the directions as shown by arrows to remove the cover.

¡

Green + Yellow

   

Earth

 

Line

 

And

 

Circuit

  B

rea

k

er

  

Power

 

Source

 

And

 

Operation

 

Test

Power Source

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.

WARNING

If you cannot attach the side cover due to the connecting cord, press the connecting cord in direction to the front panel

Be sure that the hooks of the side cover is fixed in certainly. Otherwise water leakage may occur and this causes short

The connecting cord should not touch to service valve and pipes. (It becomes high temperature in heating operation.)

to fix it.

circuit or faults.

5~10mm

A

B

C

D

A

B

C

D

 WARNING

• Leave some space in the connecting cord for maintenance

purpose and be sure to secure it with the cord band.

• Secure the connecting cord along the coated part of the wire

using the cord band. Do not exert pressure on the wire as this
may cause overheating or fire.

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

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

The indoor unit is supplied with a power cord without  AC power plug.Please use a AC power plug  acc. to the technical standards in your country.
The AC outlet closed to the indoor unit, electrical installation cable (3x1,5mm²) and fuse breaker (16A) has to be installed  in accordance

 to the technical standards in

 

your country

.

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