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Hitachi RAS-E60YHAB Instruction Manual page 2

Split unit air conditioner
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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.
When removing side cover, please pull the handle after undoing the
hook by pulling it downward.
Please face this side (suction
side) of the unit to the wall.
Please remove side cover
when connecting the piping
and connecting cord.
Pull downward
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
There are holes on the base of Outdoor unit for condensed
water to exhaust.
In order to fl ow 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
fi gure. Join the drain pipe to one hole.
At fi rst insert one portion of the hook to the base (Portion A), then pull the
drain pipe in the direction shown by the arrow while inserting the hook
into the base. After installation, check whether the drain pipe cling to the
base fi rmly.
A
BASE
DRAIN PIPE
BUSH
When Using and Installing In Cold Areas
When the air conditioner is used in low temperature and in snowy
conditions, water from the heat exchanger may freeze on the base surface
to cause poor drainage. When using the air conditioner in such areas, do
not install the bushings. Keep a minimum of 250mm between the drain
hole and the ground. When using the drain pipe, consult your sales agent.
For more details, refer to the installation Manual for Cold Areas.
WARNING
!
THIS APPLIANCE MUST BE EARTHED.
Procedures of Wiring
Indoor Unit
Outdoor Unit
Connecting cord
Power cord
Detail of Cutting the Connecting Cord
Indoor Unit
Outdoor Unit
Strip wires
Strip wires
Green +
Yellow
(ground)
Connecting cord
Power line
Green + Yellow
(ground)
!
WARNING
The naked part of the wire core should be 10 mm and fi x 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 wire specifi ed for the use of air-conditioner.
Please refer to the manual for wire connection and the wiring technique should
meet the standard of the electrical installation.
There is an AC voltage drop between the LN terminal if the power is on.
Therefore, be sure to remove the plug from its socket.
Insulation And Maintenance
1
Trial run
Of Pipe Connection
The connected terminals should be completely
sealed with heat insulator and then tied up with
rubber strap.
Please tie the pipe and power line together with
Perform a trial run to make sure that
vinyl tape as shown in the fi gure showing the
the air conditioner operates properly.
installation of Indoor and Outdoor units. Then
1. Press the COOL button (in summer)
fi x their position with holders.
of the remote controller.
To enchance the heat insulation and to prevent
2. Press the ROOM TEMPERATURE
water condensation, please cover the outdoor
button to set the temperature to 16°C
part of the drain hose and pipe with insulation
for cooling mode. Set the fan speed
pipe.
to "
Completely seal any gap with putty.
3. Operate the air conditioner for at least
20 minutes and make sure that the
air from the air conditioner is cool.
4. Press the STOP button on the remote
controller to make sure that the air
conditioner stops running.
Power Source And
3
Operation Test
Power Source
!
CAUTION
Operation Test
Please use a new socket. Accident may occur
due to the use of old socket because of poor
Please ensure that the air conditioner
contact.
is in normal operating condition during
Please plug in and then remove the plug for
the operation test.
2 – 3 times. This is to ensure that the plug
Explain to your customer the proper
is completely plugged into the socket.
operation procedures as described in
Keep additional length for the power cord and
the user's manual.
do not render the plug under external force
as this may cause poor contact.
Do not fi x the power cord with U-shape nail.
<
>
IA1951: C
1
Preparation of Pipe
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 fl aring, please put on the fl are nut.
Die
Outer
Thickness
Diameter
(mm)
mm (inch)
6.35 (1/4")
0.8
9.52 (3/8")
0.8
12.70 (1/2")
0.8
15.88 (5/8")
1.0
2
Pipe Connection
When removing fl are nut from the Indoor unit, please ensure to
!
use proper tooling.
Prevent pipe from coming in contact with water or working in
CAUTION
wet area.
BUSH
DRAIN PIPE
Flare nut
Small dia. side
Large dia. side
Torque
Valve
wrench
Wrench
head cap
Wiring Of The Indoor Unit
For wire connection of the indoor unit, you need to remove the front cover,
the low cover under the body of the unit and terminal cover.
Remove the cover from the terminal base and screw the cable.
Earth
After remove the
screw and terminal
cover, and put the
connecting cords and
fi x the terminal cover
with screw.
Method to remove electrical cover
Remove the screw and electrical cover.
Connecting cord
Insert the connecting cord (1, 2, 3) from the back of unit.
Fixed the wire to terminal wires fi rmly as shown as below.
Electrical cover
Connecting cord
Screw
!
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 fi re.
Installation Of Remote
❖ Be sure to measure
2
the supply voltage
Controller
before plugging the
power cord into the
The remote controller can be placed in its
power outlet.
holder which is fi xed 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 fi xed. The unit will
beep when signal is received from the remote
controller. The signal transmission is weaken
by the fl uorescent light. Therefore, during
the installation of the remote control holder,
please switch on the light, even during day
" (HI).
time, to determine the mounting location of
the holder.
The controller should be insert from top into
bottom side of the holder as shown below.
3
Trimming tool
Copper pipe
CAUTION
!
Die
Recommend to use
R32 fl aring tool.
Copper pipe
A (mm)
Flare tool for R32
Conventional fl are tool
Clutch type
Clutch type
Wing nut type
~
0.0
0.5
1.0 ~ 1.5
1.5 ~ 2.0
~
0.0
0.5
1.0 ~ 1.5
1.5 ~ 2.0
~
0.0
0.5
1.0 ~ 1.5
1.5 ~ 2.5
~
0.0
0.5
1.0 ~ 1.5
1.5 ~ 2.5
Prevent moisture from entering pipe connection.
Refrigerating machine oil not be applied to the
Outer
Torque N.m
outside of the fl are.
diameter
(kgf
cm)
When refrigerating machine oil is applied to the
of pipe
outside of the fl are, excessive tightening of the
6.35 (1/4")
13.7 ~ 18.6 (140 ~ 190)
fl are nut, cracking of the fl are nut, destruction of
9.52 (3/8")
34.3 ~ 44.1 (350 ~ 450)
the fl are and gas leakage may occur.
12.7 (1/2")
44.1 ~ 53.9 (450 ~ 550)
When using the control valve, do not use
Small dia. side
6.35 (1/4")
19.6 ~ 24.5 (200 ~ 250)
deteriorated packing. And, do not overtighten the
steering wheel.
9.52 (3/8")
19.6 ~ 24.5 (200 ~ 250)
Large dia. side
Gas leakage from the service valve part, stagnation,
29.4 ~ 34.3 (300 ~ 350)
12.7 (1/2")
touching fi re, rarely cause ignition.
Valve core cap
12.3 ~ 15.7 (125 ~ 160)
(Dry contact, H-Link/Wi Fi (optional), Wired remote, Run status)
For cable connection to control P.W.B., you need to remove
front cover and electrical box cover.
Each connecting location is as below.
1
Dry contact: CN6
2
H-LINK/Wi Fi: CN7
3
Wired Remote Controller: CN20
4
Run status: CN25
Please check and confi rm manuals attached to each optional
parts for more connection details.
You can refer to this installation manual how to remove
and re-attach the front cover.
Please be careful not to damage lead wires by edge of
plate when connecting the optional parts.
Cord band
Wiring of The Outdoor Unit
Please remove the side plate for wire connection.
Connecting cord
If you cannot attach the side plate due to the connection cord, please press the connecting
cord in the direction to the front panel to fi x it.
!
Be sure that the hooks of the side plate is fi xed in certainly. Otherwise water leakage may
occur and this causes short circuit or faults.
WARNING
The connecting cord should not touch to service valve and pipes. (It becomes high
temperature in heating operation.)
Checking for the electric source and the voltage range
Before installation, the power source must be checked and necessary wiring work must be completed. To
make the wiring capacity proper, use the wire gauge list below for the wiring from house distribution fuse
box to the outdoor unit in consideration of the locked rotor current.
Investigate the power supply capacity and other electrical conditions at
the installing location.
Depending on the model of room air conditioner to be installed, request
the customer to make arrangements for the necessary electrical work etc.
The electrical work includes the wiring work up the outdoor unit . In
localities where electrical conditions are poor, use of a voltage regulation
is recommended.
Install outdoor for the room air conditioner within the reaching range of
the line cord.
For (Power cord - L, N, Earth)
Wire cross-section
2.5 mm
2
IMPORTANT
Circuit Breaker
20A
How to remove the Front Cover
1
Remove the front panel.
Pull up the front panel
by holding it at both lower
sides with both hands.
When the front panel full
open, pull the inner part of
the right arm outward and
pull the panel forward while
closing it gradually.
2 Remove the pre-fi lters.
Push upward to release the claws and pull out the Pre-fi lter.
3 After removing two caps and two screws, rotate the horizontal
louver towards you a bit. Then, pull the center of the front
cover to release the claws.
4 Pull the side faces (lower sections) of the front cover towards
you as shown in the fi gure and remove the cover.
Horizontal louver
Cap
Screw
Removal Of Air From The Pipe And Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully
tighten the shuttle.
As shown in right fi gure, remove the cap of
valve core. Then, connect the charge hose.
1
Remove the cap of valve head. Connect the
vacuum pump adapter to the vacuum pump
Charge hose
and connect the charge hose to the adapter.
Valve
Fully tighten the "Hi" knob of the manifold
valve and completely unscrew the "Lo" knob.
2
Run the vacuum pump for about 10~15
minutes, then completely tighten the "Lo" knob
and switch off the vacuum pump.
When pumping starts, slightly loosen the
fl are nut to check of air sucked in. Then
Remove the charge hose and tighten the cap
tighten the fl are nut.
of valve core. Check the cap's periphery if
3
there is any gas leakage.
Completely unscrew the spindle of the
service valve (at 2 places) in anti-clockwise
4
direction to allow the fl ow of refrigerant (using
Hexagonal Wrench key).
Cap of valve head
Re-cap the service valve and tighten using
wrench. Check the cap's periphery if there is
5
any gas leakage. The task is then completed.
Gas Leakage Inspection
CAUTION
!
Please use gas leakage detector
to check if leakage occurs at the
connection of Flare nut as shown
on the right.
If gas leakage occurs, further tighten
the connection to stop leakage. (Be
sure to use R32 detector)
How to connect the optional parts
For (Connecting cord - 1, 2, 3, Earth)
Wire length
Wire cross-section
up to 30 m
1.5mm
2
CAUTION
Outdoor supply cords shall not be lighter
than polychloroprene sheathed fl exible
cord with code designation 60245 IEC 57.
How to attach the Front Cover
Front panel
1
Check to ensure that the drain pan is securely attached.
2
To install the front cover onto the unit, push two points
from the center to lock the two claws in the direction as
shown in the image below. Then, hook the four claws at
upper side of the front cover securely.
Claws
Cap
Pre-fi lter
Screw
3
Tighten the two screws, then attach the two caps.
4
Install the pre-fi lters.
5
Slide the shafts on the left then on the right arms of the
front panel along the step on the front cover. Please insert
the shafts into the holes untill they stop. After checking
the shafts are securely inserted, close the front panel.
Front cover
Meter showing pressure
Closed
R32
o
Hi
Manifold valve
Vacuum
Valve
pump
Vacuum pump
adapter
The body of
service valve
Cap of valve
core
Hexagonal
Wrench Key
Cap of valve head
Cover
Earth
terminal
View A
Claw
View A
Before insertion
Claw
After insertion
Hole
Shaft

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