Advertisement
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.
Open the side plate by unscrewing the screws
●
as shown below.
Please face this side (suction side)
of the unit to the wall.
Please remove side cover when
connecting the connecting cord.
!
WARNING
THIS APPLIANCE MUST BE EARTHED.
●
Procedures of Wiring
Connecting cord
Indoor Unit
Strip wires
Outdoor Unit
GRN + YEL
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 power cables approved from the authorities in your country.
●
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 220-230V 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.
Do not make any connection in the middle of the connecting cable. It may cause the wire
●
over heated, emit smoke and fi re.
1
Insulation And Maintenance 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 vinyl tape
●
as shown in the fi gure showing the installation of Indoor and
Outdoor units. Then fi x their position with holders.
To enhance 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.
●
3
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 fi x the power cord with U-shape nail.
●
<
>
IA1156: A
INS RAS-F10CF (EN2) 1
INS RAS-F10CF (EN2) 1
1
Preparation of Pipe
Use a pipe cutter to cut the copper pipe.
●
CAUTION
!
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 hexagon screw cap.
●
Outer
Thickness
Flare tool for R410A
Diameter (mm)
(mm)
Clutch type
~
6.35 (1/4)
0.0
0.5
0.8
~
9.52 (3/8)
0.0
0.5
0.8
2
Pipe Connection
In case of removing fl are nut of an Indoor unit, fi rst remove a nut of
!
CAUTION
small diameter side, or a seal cap of big diameter side will fl y out.
Prevent water from entering into the piping when working.
Small dia. side
Large dia. side
Small dia. side
Valve
head cap
Large dia. side
Valve core cap
Wiring Of The Indoor Unit
For wire connection of the Indoor unit, you need to remove Low Cover and Indicator Cover.
●
GRN + YEL
Wiring of The Outdoor Unit
●
2
Installation Of Remote Controller
The remote controller can be fi xed on wall or beam.
●
To operate the remote controller at its location, please ensure
●
that the unit can receive signal transmitted from the controller
where it 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 controller, please switch on the
light, even during day time, to determine the proper location
of the remote controller.
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.
3
●
Recommend to use
R410A fl aring tool.
A (mm)
Conventional fl are tool
Clutch type
Wing nut type
1.0 ~ 1.5
1.5 ~ 2.0
1.0 ~ 1.5
1.5 ~ 2.0
Outer
Torque N·m
Gas Leakage Inspection
dia.of pipe
(kgf
·
cm)
6.35 (1/4")
13.7 – 18.6 (140 – 190)
Please use gas leakage detector to check if leakage occurs
9.52 (3/8")
34.3 – 44.1 (350 – 450)
at the connection of Flare nut as shown on the right.
6.35 (1/4")
19.6 – 24.5 (200 ~ 250)
If gas leakage occurs, further tighten the connection to
9.52 (3/8")
19.6 – 24.5 (200 ~ 250)
stop leakage. (Use the detector provided for R410A)
12.3 – 15.7 (125 ~ 160)
Please remove the side cover for wire connection.
If you cannot attach the side cover due to the
●
connecting cord, press the connecting cord in
!
direction to the front panel to fi x it.
Be sure that the hooks of the side cover is fi xed in
●
WARNING
certainly. Otherwise water leakage may occur and
this causes short circuit or faults.
IMPORTANT
Cable length
Wire cross-section
IMPORTANT
Circuit Breaker
up to 125m
1.5mm
2
10A
Pump Down Method When Reuse
Existing Piping (R22 Model) for
R410A Model
●
Compressor oil of R22 model is insoluble in compressor
oil of R410A model. The mixing of compressor oil may
cause damage of compressor.
Possibility of Mixing
●
Reuse of piping of R22 model is dangerous because
of its compressor oil.
●
When reuse piping of R22 model, pump down must be
carried out properly to ensure compressor oil which is
remained inside piping is collected away.
!
CAUTION
Reuse of piping R-22 model only apply if previous
model is Hitachi and proper pump down method is used.
To Reuse Old Piping
●
Piping of R22 model can be reused only when air-
conditioner is properly pumped down.
The purpose of pump down is to collect back the
●
compressor oil (which is mixed with refrigerant and
circulating inside refrigeration cycle) properly into the
outdoor unit of air conditioner.
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
As shown in right fi gure, remove the cap
tighten the shuttle.
of valve core. Then, connect the charge
hose. Remove the cap of valve head.
1
Connect the vacuum pump adapter to the
vacuum pump and connect the charge
Charge hose
hose to the adapter.
Valve
Fully tighten the "Hi" shuttle of the
manifold valve and completely unscrew
the "Lo" shuttle. Run the vacuum pump
2
for about 10–15 minutes, then completely
When pumping starts, slightly loosen the
tighten the "Lo" shuttle and switch off the
fl are nut to check of air sucked in. Then
vacuum pump.
tighten the fl are nut.
Completely unscrew the spindle of
3
the service valve (at 2 places) in anti-
clockwise direction to allow the fl ow of
coolant (using Hexagonal Wrench key).
Remove the charge hose and tighten
the cap of valve head. Check the cap's
4
periphery if there is any gas leakage.
The task is then completed.
3
Pull the cover at
1
and
2
●
the directions as shown by arrows
to remove the low cover.
4
!
WARNING
●
Please fi x back
the electrical plate
After unscrew and remove
after wiring work is
electrical plate, unscrew the
complete. Otherwise
terminal band to put connecting
if short circuit occur it
cords. Fix back the band screw
may cause unit burn.
and electrical plate.
Earth terminal
CAUTION
Outdoor supply cords shall not be lighter than polychloroprene sheathed fl exible
cord with code designation 60245 IEC 57.
Proper Pump Down Method
Operate air conditioner
1
at cooling mode for
10~15 minutes
Most Important Process
Purpose: To make the
oil & refrigerant mix
together. They are in
separated condition when
air conditioner is
stopped.
3
Take out air conditioner unit.
It is advisable to fl ush
the piping with R410A to
avoid any contamination
remain before new
installation.
Meter showing pressure
Closed
R410A
Lo
Hi
Manifold valve
Vacuum
Valve
pump
Vacuum
pump
adapter
in
A B
A B
A
B
After 10~15 minutes of
2
pre operation, close 2s
valve. After 3 minutes,
close 3s valve.
Mixed
refrigerant
& oil will be
collected into
outdoor unit.
4
Install New Refrigerant
air conditioner
11/14/14 11:01 AM
11/14/14 11:01 AM
Advertisement
