Toshiba RAS-25S4KVPG-ND User manual

AIR CONDITIONER (SPLIT TYPE)
INSTALLATION MANUAL
Indoor unit
RAS-25, 35S4KVPG-ND
Outdoor unit
RAS-25, 35S4AVPG-ND
1134050101
R32
Scan QR CODE to access installation and owner’s manual on website.
https://www.toshiba-carrier.co.th/manuals/default.aspx
Manual are available in EN/SV/FI/NO.
ENGLISH
SVENSKA
SUOMI
NORSK
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PRECAUTIONS FOR SAFETY............................................................ 1
ACCESSORY AND INSTALLATION PARTS ...................................... 5
INSTALLATION DIAGRAM OF INDOOR AND
OUTDOOR UNITS ............................................................................... 6
Optional Installation Parts ................................................................ 6
INDOOR UNIT...................................................................................... 7
Installation Place.............................................................................. 7
Cutting a Hole and Mounting Installation Plate ................................ 7
Piping and Drain Hose Installation................................................... 8
Indoor Unit Fixing........................................................................... 10
Drainage......................................................................................... 11
OUTDOOR UNIT................................................................................ 11
Installation Place............................................................................ 11
Precautions about Installation in Regions with Snowfall
and Cold Temperatures.................................................................. 11
Draining the Water ......................................................................... 12
Refrigerant Piping Connection ....................................................... 12
Evacuating .................................................................................... 13
ELECTRICAL WORKS...................................................................... 14
Power Supply and Connecting Cable Connection ......................... 15
Power Supply Input Wiring Diagram .............................................. 16
OTHERS............................................................................................. 17
Gas Leak Test ................................................................................ 17
Remote Control A-B Selection ....................................................... 17
Test Operation ............................................................................... 17
Auto Restart Function Setting ....................................................... 17
APPENDIX ......................................................................................... 18
CONTENTS
EN
INNEHÅLLSLFÖRTECKNING
SV
SÄKERHETSFÖRESKRIFTER ........................................................... 1
TILLBEHÖR OCH INSTALLATIONSDELAR ...................................... 5
INSTALLATIONSDIAGRAM FÖR INOM- OCH
UTOMHUSENHETER .......................................................................... 6
Valfria Installationsdelar ................................................................... 6
INOMHUSENHET ................................................................................ 7
Installationsplats............................................................................... 7
Skärning av Hål och Montering av Installationsplatta ...................... 7
Installation av Rörledningar och Dräneringsslangar ........................ 8
Fixering av Inomhusenhet.............................................................. 10
Avrinning ........................................................................................ 11
UTOMHUSENHET ............................................................................. 11
Installationsplats............................................................................. 11
Försiktighetsåtgärder vid Installation i Regioner med Snöfall
och Kalla Temperaturer .................................................................. 11
Tömning av Vattnet ........................................................................ 12
Anslutning av Köldmediumrör ........................................................ 12
Tömning ......................................................................................... 13
ELEKTRISKA ARBETEN .................................................................. 14
Strömförsörjning och Anslutning av Anslutningskabel.................... 15
Inmatningskabeldiagram för Strömförsörjning ............................... 16
ANNAT ............................................................................................... 17
Gasläckagetest .............................................................................. 17
Fjärrkontroll A-B-Val ....................................................................... 17
Testdrift........................................................................................... 17
Funktionsinställning av Automatisk Omstart .................................. 17
BILAGA.............................................................................................. 18
TURVALLISUUSVAROTOIMET .......................................................... 1
LISÄOSAT JA ASENNUSOSAT.......................................................... 5
SISÄ- JA ULKOYKSIKKÖJEN ASENNUSKAAVIO............................ 6
Valinnaiset Asennusosat .................................................................. 6
SISÄYKSIKKÖ..................................................................................... 7
Asennuspaikka................................................................................. 7
Aukon Poraaminen ja Asennuslevyn Kiinnitys ................................. 7
Putkien ja Tyhjennysletkun Asennus................................................ 8
Sisäyksikön Kiinnitys...................................................................... 10
Tyhjennys....................................................................................... 11
ULKOYKSIKKÖ................................................................................. 11
Asennuspaikka............................................................................... 11
Huomiot Asennuksesta Alueille Joissa on Lumisadetta ja
Kylmiä lämpötiloja .......................................................................... 11
Veden Tyhjentäminen..................................................................... 12
Kylmäaineputkiston Liitäntä ........................................................... 12
Tyhjentäminen................................................................................ 13
SÄHKÖTYÖT..................................................................................... 14
Virtajohto ja Liitäntäkaapelin Liittäminen........................................ 15
Virransyötön Johdotuskaavio......................................................... 16
MUUT ................................................................................................. 17
Kaasuvuototesti.............................................................................. 17
Kaukosäätimen A-B Valinta............................................................ 17
Testikäyttö ...................................................................................... 17
Automaattisen Uudelleenkäynnistystoiminnon Asetus................... 17
LIITE................................................................................................... 18
FORHOLDSREGLER FOR SIKKERHET............................................ 1
TILLEGGSUTSTYR OG INSTALLASJONSDELER............................ 5
KOBLINGSSKJEMA FOR INNE- OG UTENDØRSENHETEN ........... 6
Ekstrautstyr ...................................................................................... 6
INNENDØRSENHET............................................................................ 7
Montasjested.................................................................................... 7
Lage et Hull og Montere Montasjeplaten ......................................... 7
Installasjon av Rør og Avløpsslange................................................ 8
Feste av Innendørsenheten ........................................................... 10
Drenering ....................................................................................... 11
UTENDØRSENHET ........................................................................... 11
Montasjested.................................................................................. 11
Forholdsregler ved Installasjon i Områder med Snø og Lave
Temperaturer.................................................................................. 11
Drenering av Vannet ...................................................................... 12
Tilkobling av Kjølemedierør............................................................ 12
Evakuering ..................................................................................... 13
ELEKTRISK ARBEID ........................................................................ 14
Strømforsyning og Tilkobling av Kabel........................................... 15
Strømforsyningsinngang Koblingsskjema...................................... 16
ANDRE............................................................................................... 17
Gasslekkasjetest............................................................................ 17
Fjernkontroll A-B Valg..................................................................... 17
Testdrift .......................................................................................... 17
Innstilling av Funksjonen for Automatisk Omstart .......................... 17
VEDLEGG.......................................................................................... 18
SISÄLLYSLUETTELO FI INNHOLDSFORTEGNELSE NO
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PRECAUTIONS FOR SAFETYPRECAUTIONS FOR SAFETY
• Before installation, please read these precautions for safety carefully.
• Be sure to follow the precautions provided here to avoid safety risks.
The symbols and their meanings are shown below.
WARNING : It indicates that incorrect use of this unit may cause severe injury or
death.
CAUTION : It indicates that incorrect use of this unit may cause personal injury
(*1), or property damage (*2).
*1: Personal injury means a slight accident, burn, or electrical shock
which does not require admission or repeated hospital treatment.
*2: Property damage means greater damage which affects assets or
resources.
For general public use
Power supply cord and connecting cable of appliance use shall be at least
polychloroprene sheathed flexible cord (design H07RN-F) or cord designation
60245 IEC66. (Shall be installed in accordance with national wiring regulations.)
This appliance must be connected to the main power supply by means of a circuit
breaker or a switch with a contact separation of at least 3 mm in all poles.
CAUTION To disconnect the appliance from the main power supply
Read the precautions in
this manual carefully before
operating the unit.
This appliance is filled with R32.
Warning indications on the air conditioner unit
Warning indication Description
CAUTION
BURST HAZARD
Open the service valves
before the operation,
otherwise there might be
the burst.
CAUTION
BURST HAZARD
Open the service valves before the operation,
otherwise there might be the burst.
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DANGER
• FOR USE BY QUALIFIED PERSONS ONLY.
• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL
WORK. MAKE SURE ALL POWER SWITCHES ARE OFF.
FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING
CABLE IS CONNECTED WRONGLY, ELECTRIC PARTS MAY BE DAMAGED.
• CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED
BEFORE INSTALLATION.
• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR
GAS VAPORS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR
EXPLOSION.
• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE
HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT
SOURCES SUCH AS RADIATORS, HEATERS, FURNACE, STOVES, ETC.
• WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER
PLACE AGAIN, BE VERY CAREFUL NOT TO GET THE SPECIFIED
REFRIGERANT (R32) WITH ANY OTHER GASEOUS BODY INTO THE
REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE
REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CYCLE
BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF
THE PIPE AND INJURIES ON PERSONS.
• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE
DURING THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR
INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR
SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS.
WARNING
• Never modify this unit by removing any of the safety guards or bypassing any of
the safety interlock switches.
• Do not install in a place which cannot bear the weight of the unit.
Personal injury and property damage can result if the unit falls.
• Before doing the electrical work, attach an approved plug to the power supply
cord.
Also, make sure the equipment is properly earthed.
• Appliance shall be installed in accordance with national wiring regulations.
If you detect any damage, do not install the unit. Contact your dealer
immediately.
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• Do not use any refrigerant different from the one specified for complement or
replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration
cycle, which may result in a failure or explosion of the product or an injury to
your body.
• Do not use means to accelerate the defrosting process or to clean, other than
those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance or an operating
electric heater).
• Be aware that refrigerants may not contain an odour.
• Do not pierce or burn as the appliance is pressurized. Do not expose the
appliance to heat, flame, sparks, or other sources or ignition.
Else, it may explode and cause injury or death.
• For R32 model, use pipes, flare nut and tools which is specified for R32
refrigerant. Using of existing (R22) piping, flare nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and possibly result in
explosion and injury.
• Thickness of copper pipes used R32 must be more than 0.8 mm. Never use
copper pipes thinner than 0.8 mm.
• After completion of installation or service, confirm there is no leakage of
refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire.
• Comply with national gas regulations.
• Do not add any other devices without factory advice.
WARNING
• After installation work, make sure below before operation.
- Connection pipes are connected properly and no leakage.
- Packed valves are fully open.
Running compressor without open packed valves may cause abnormal high
pressure and parts failure.
Leakage at connection piping may suck air and make further high pressure
cause burst and injure.
• During pump down work make sure below process.
- Don’t mix air into the refrigerant cycle.
- Stop the compressor before removing piping after packed valves are
fully closed.
Removing piping under the compressor running and packed valves open,
air might be sucked and refrigeration cycle pressure becomes abnormally high,
and it causes burst or injury on persons.
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REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER
Please make absolutely sure that the installation of this appliance is reported to
the local power supplier before installation. If you experience any problems or if
the installation is not accepted by the supplier, the service agency will take
adequate countermeasures.
■Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases.
Do not vent gases into the atmosphere.
Refrigerant type: R32
GWP(1) value: 675 * (ex. R32 ref. AR4)
(1)GWP = global warming potential
The refrigerant quantity is indicated on the unit name plate.
* This value is based on F gas regulation 517/2014
CAUTION
• Exposure of unit to water or other moisture before installation could result in
electric shock.
Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine it carefully for possible damage.
• 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 of
fire.
• Do not install in a place that can increase the vibration of the unit.
Do not install in a place that can amplify the noise level of the unit or where
noise and discharged air might disturb neighbors.
• To avoid personal injury, be careful when handling parts with sharp edges.
• Please read this Installation Manual carefully before installing the unit.
It contains further important instructions for proper installation.
• The manufacturer shall not assume any liability for the damage caused by not
observing the description of this manual.
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ACCESSORY AND INSTALLATION PARTSACCESSORY AND INSTALLATION PARTS
Indoor Unit
No. Part name No. Part name
1
Installation plate × 1
2
Wireless remote controller × 1
3
Battery × 2
4
Remote controller holder × 1
5
Toshiba Ultra pure filter × 2
6
Mounting screw × 8
7
Flat head wood screw × 2
8
Screw × 2
9
Owner’s Manual × 1
!
Installation Manual × 1
Outdoor Unit
No. Part name No. Part name
"
Drain nipple × 1
#
Cap water proof × 3
Filter
Maintenance & Shelf-life
Clean every 3-6 months when dust stuck or covers the filter.
1. Recommend to use vacuum to clean by sucking the dusts which stick or dip inside the filter or use the blower
to blow the dust go out through the filter.
2. If necessary to use water to clean, simply use the plain water to wash the filter, dry with the sunlight
for 3-4 hours or until it completely dry.
Nevertheless, use hair drier to dry it. However, washing with water, it may reduce the performance of the filter.
3. Replace every 2 years or sooner. (contact your dealer to purchase new filter) (P/N : RB-A622DA)
Note: Filter life depends on the level of impurities in your operating environment. Higher levels of impurities
may require more frequent cleaning and replacement. In all cases, we recommend an additional set
of filters to improve the purifying and deodorizing performance of your air conditioner. Attach filter to predetermined
position of air filter
Air filter
Clean every 2 weeks.
1. Open the air inlet grille.
2. Remove the air filters.
3. Vacuum or wash and then dry them.
4. Reinstall the air filters and close the air inlet grille.
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INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITSINSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS
Part
code Parts name Q’ty
A
Refrigerant piping
Liquid side : Ø6.35 mm
Gas side : Ø9.52 mm
One
each
BPipe insulating material
(polyethylene foam, 6 mm thick) 1
CPutty, PVC tapes One
each
Optional Installation Parts
Insulate the refrigerant pipes separately
with insulation, not together.
6 mm thick heat resisting
polyethylene foam
3Batteries
7Flat head
wood screw
4Remote controller
holder
Vinyl tape
Apply after carrying
out a drainage test.
2Wireless
remote controller
Saddle
Extension drain hose
(Not available, provided
by installer)
Shield pipe
(Attach to the front panel.)
Air filter
Hook
Hook
Hook
1Installation
plate
5Filter
6
Mounting
screw
Cut out a piece of SPACER from indoor
unit packaging box, roll it and insert
between the indoor unit and wall to tilt
the indoor unit for better operation.
For the rear left and bottom left piping
Wall
Make sure to run the drain hose sloped
downward.
Do not allow the drain hose to get slack.
Cut the piping
hole sloped
slightly.
Refrigerant piping must be protected
from physical damage.
Install a plastic cover or equivalent.
100 mm or more
600 mm or more
600 mm or more
100 mm or more
600 mm or more
300 mm or more
73 mm or more
300 mm or more
• Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be
exposed to a strong wind.
• Use Ø8 mm or Ø10 mm anchor bolts and nuts.
• If it is necessary to drain the defrost water, attach drain nipple "and cap
water proof #to the bottom plate of the outdoor unit before installing it.
Fixing bolt arrangement of outdoor unit
Drain outlet
Air inlet
Air outlet
197 mm
29 mm
600 mm
330 mm
125 mm
106 mm
121 mm
90 mm
350 mm
108 mm
* Drain nipple and
cap water proof
are packed in
outdoor unit.
The auxiliary piping can be connected
to the left, rear left, rear right, right,
bottom right or bottom left.
Bottom left
Bottom
right
Rear
left
Rear right
Right
Left
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INDOOR UNITINDOOR UNIT
Installation Place
• Direct sunlight to the indoor unit’s wireless receiver should be avoided.
• The microprocessor in the indoor unit should not be too close to RF
noise sources.
(For details, see the owner’s manual.)
Remote controller
• A place where there are no obstacles such as a curtain that may block the
signal from the indoor unit.
• Do not install the remote controller in a place exposed to direct sunlight or
close to a heating source such as a stove.
• Keep the remote controller at least 1 m apart from the nearest TV set or
stereo equipment. (This is necessary to prevent image disturbances or
noise interference.)
• The location of the remote controller should be determined as shown
below.
(Side view) (Top view)
Indoor unit
Reception
range
Remote
controller
Remote
controller
Indoor unit
7 m
1.5 m
45°
45°
Cutting a Hole and Mounting
Installation Plate
NOTE
• When drilling a wall that contains a metal lath, wire lath or metal plate,
be sure to use a pipe hole brim ring sold separately.
Cutting a hole
When installing the refrigerant pipes from the rear.
1. After determining the pipe hole position on the mounting plate (¨), drill
the pipe hole (Ø65 mm) at a slight downward slant to the outdoor side.
• A place which provides the spaces around the indoor unit as shown in the
diagram.
• A place where there are no obstacles near the air inlet and outlet.
• A place which allows easy installation of the piping to the outdoor unit.
• A place which allows the front panel to be opened.
• The indoor unit shall be installed at least 2.5 m height. Also, it must be
avoided to put anything on the top of the indoor unit.
CAUTION
To the center of the pipe hole
Pipe hole
Ø65 mm
130 mm
• Space allows for moving range of the air inlet grille and horizontal louver
in operation above curtain rails, window cornice or other objects.
52
55* 55293
170
460
Air inlet grille
Curtain rails,
window cornice
or other objects
Horizontal louver
Distance between
bottom of indoor unit
to maximum the air inlet
grille opening
Distance between
bottom of indoor unit
to maximum horizontal
louver opening
(Unit : mm)
42
• If have curtain rails, window cornice or other objects, allow space from
the indoor unit should be 55 mm or more.
• If allow space is less than 55 mm, this can affect the opening and
closing of the air inlet grille and the horizontal louver.
• However, there should be no objects in the air outlet position.
It will block the air flow direction and drop performance.
CAUTION
Mounting the installation plate
Hook
Hook
Thread Weight Drain hose positionDrain hose position
Indoor unit outline Recommended mounting
screw positions
Pipe holePipe hole Hook
300 300
170 170
65 65
55
73
(Unit : mm)
Directly mounting indoor unit to the wall
preparation
• In the case of block, brick, concrete or similar type wall, determining the
mount screw position on the wall can be used position as below for drill
hole to insert clip anchors for appropriate mounting screw.
2095 Top of installation plate
(Unit : mm)
• The provided screws should be used to fix the indoor unit directly to the
wall at the predetermined position.
6
Installation plate
Indoor unit
Mounting screw
Space allows under the indoor unit
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Piping and Drain Hose Installation
• Since dewing results in a machine trouble, make sure to insulate both
connecting pipes. (Use polyethylene foam as insulating material.)
• The connection of pipes can be installed in the following directions.
Rear right
Rear left
Bottom left
Left
Right
Bottom right
Cut slit of
Front Panel
Changing
drain hose
Pipe cutting
and welding
Piping preparation
Cut slit of
Grille
Piping and drain hose forming
• In case of block, brick, concrete or similar type walls, make 5 mm dia.
holes in the wall.
• Insert clip anchors for appropriate mounting screws 6.
NOTE
• Secure four corners and lower parts of the installation plate with 4 to 6
mounting screws to install it.
Failure to firmly install the unit may result in personal injury and property
damage if the unit falls.
CAUTION
6
Installation plate
(Keep horizontal direction.)
5 mm dia. hole
Clip anchor
(local parts)
Mounting screw
Ø4 mm x 25R
Anchor bolt
Projection
15 mm or less
When the installation plate is directly mounted
on the wall
1. Securely fit the installation plate onto the wall by screwing it in the upper
and lower parts to hook up the indoor unit.
2. To mount the installation plate on a concrete wall with anchor bolts, use
the anchor bolt holes as illustrated in the below figure.
3. Install the installation plate horizontally in the wall.
When installing the installation plate with a mounting screw, do not use
the anchor bolt holes. Otherwise, the unit may fall down and result in
personal injury and property damage.
CAUTION
• Rear right • Rear left
Cut pipe
and welding
Drain hose
Drain hose
• Bottom right • Bottom left
Drain hose
Drain hose Cut out
Front panel slit
Cut out
Front panel slit
Cut pipe
and welding
• Right • Left
Drain hose
Drain hose
Cut out
Front panel slit
Cut out
Front panel slit
Pipe tightening
connection
1. Cut Front panel slit
• Cut out the slit on the bottom left or bottom right side of the Front panel
for the bottom left or bottom right connection with a coping saw.
2. Cut Grille slit
• Cut out the slit on the left or right side of the Air inlet grille for the left or
right connection with a coping saw.
3. Changing drain hose
• The factory default of the drain hose is installed on the right side.
• For left, bottom leftward or rear leftward connection’s piping,
it is necessary to change the drain hose and drain cap.
4. Cutting and welding pipes
• For bottom-leftward connection and rear leftward connection’s piping,
refrigerant connection must be made by brazing or welding.
How to cutting the Front panel
• To connect piping to the left, right or bottom side, the Front panel must be
cut off.
• The Front panel can be removed by removing 4 screws securing then
secure remove the front panel from the main body.
Main body
Front panel
Screw 4 pcs.
• The marking for cutting are indicated on the Front panel in the following
positions.
360 mm 360 mm
Pre-cut mark is inside
Slit Slit
Left RightBottom
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• Cut off the pipe exist from inside of Front panel using a coping saw or an
equivalent tool.
• The plastic burrs from the cutting process should be removed with a half
round file or an equivalent tool.
Coping saw
Half round file
How to cutting the air inlet grille
• To connect piping to the left or right side, the air inlet grille must be cut off.
• The marking for cutting are indicated on the inside of the air inlet grille in
the following positions.
Pre-cut mark is inside
Pre-cut mark is inside
Left RightFront
• Cut off the pipe exist from inside of the Air inlet grille using a coping saw
or an equivalent tool.
• The plastic burrs from the cutting process should be removed with a half
round file or an equivalent tool.
CAUTION
When cutting the Front panel and the Air inlet grille, be careful of cutting
tools and any sharp edges of plastic. It can cause injuries.
How to remove the drain hose
• Removed fixing screw of LED set then pull out it from the main body.
• Removed 2 screws to fix drain pan then secure remove the drain pan from
the main body.
Drain pan
Screw 2 pcs.
LED set
Screw
• The drain hose can be removed by removing the screw securing the drain
hose then secure rotate steel plate of drain hose to out of the Drain pan
and pulling out the drain hose.
Screwdriver
Screw
Steel plate
of drain hose
Drain hose
How to fix the drain hose
• To install the drain hose, insert the drain hose firmly until the connection
part contacts with heat insulator, secure push steel plate of drain hose to
predetermined position of Drain pan then fix it by original screw.
Heat insulator (foam)
Drain hose
Drain pan
Screw
CAUTION
When removing or install the drain hose, be careful of any sharp edges
of steel plate. The edges can cause injuries.
How to remove the drain cap
• Clip the drain cap by needle-nose
pliers and pull out.
Cap drain
Needle-nose pliers
How to fix the drain cap
• Insert hexagonal wrench (dia. 4 mm) in a center head.
Hexagonal wrench
• Firmly insert the drain cap.
No gap Insert a hexagon wrench
(4 mm).
Do not apply lubricating oil
(refrigerant machine oil)
when inserting the drain
cap. Application causes
deterioration and drain
leakage from the plug.
CAUTION
Firmly insert the drain hose and drain cap; otherwise, water may leak.
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Indoor Unit Fixing
• The air inlet grille should be removed before installing the indoor unit.
To avoid damage to the corner of the air inlet grille or the wall.
CAUTION
1. Remove the air inlet grille.
Open the air inlet grille upward and pull it toward you.
2. Pass the pipe through the hole in the wall and hook the indoor unit on the
installation plate at the upper hook.
3. Swing the indoor unit to right and left to confirm that it is firmly hooked up
on the installation plate.
4. While pressing the indoor unit onto the wall, hook it at the lower part on
the installation plate. Pull the indoor unit toward you to confirm that it is
firmly hooked up on the installation plate.
1
2
1Installation plate
Hang indoor unit's
hook here
Press indoor unit
to lower hook
• For detaching the indoor unit from the installation plate, pull the indoor unit
toward you while pushing its bottom up at the specified parts.
Push Push Press
(unhook)
INFORMATION
• The lower part of indoor unit may float, due to the condition of piping
and installer cannot fix it to the installation plate. In that case, use the
screws provided to fix the indoor unit with the installation plate.
• Especially when the pipes are pulled out to the left side, the indoor
unit must be screwed to the installation plate.
Indoor unit Wall
Installation plate
Screw
8Screw
8Screw 8
1
Left-hand connection with piping
• Bend the connecting pipe so that it is laid within 43 mm above the wall
surface. If the connecting pipe is laid exceeding 43 mm above the wall
surface, the indoor unit may unstably be set on the wall.
• When bending the connecting pipe, make sure to use a spring bender so
as not to crush the pipe.
Bend the connecting pipe within a radius of 30 mm.
To connect the pipe after installation of the unit (figure)
Indoor unit outline
Use the handle of screwdriver, etc.
340 mm
43 mm
300 mm
R 30 mm (Use polisin (polyethylene)
core or the like for bending pipe.)
Gas side
Liquid side
Liquid side
Gas side
Cut pipe before welding
Front view
Bottom view
80º
NOTE
• If the pipe is bent incorrectly, the indoor unit may unstably be set on the
wall.
• After passing the connecting pipe through the pipe hole, connect the
connecting pipes to the auxiliary pipes and wrap the facing tape around
them.
How to cutting pipe
• To connect piping to the left side, the indoor unit pipes must be cut and
connected by brazing or welded to the auxiliary pipes.
• Cut the pipe with a pipe cutter.
Obliquity
90º Roughness Warp
Copper
pipe
CAUTION
• Bind the auxiliary pipes (two), power supply and connecting cable with
facing tape tightly.
Installation plate
1
Auxiliary pipes
Power supply and
connecting cable
Indoor unit
• Carefully arrange pipes so that any pipe does not stick out of the rear
plate of the indoor unit.
• Carefully connect the auxiliary pipes and connecting pipes to one
another and cut off the insulating tape wound on the connecting pipe
to avoid double-taping at the joint;
moreover, seal the joint with the vinyl tape, etc.
• Since dewing results in a machine trouble, make sure to insulate both
connecting pipes. (Use polyethylene foam as insulating material.)
• When bending a pipe, carefully do it, not to crush it.
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OUTDOOR UNITOUTDOOR UNIT
Installation Place
• A place which provides the spaces around the outdoor unit as shown in
the diagram.
• A place which can bear the weight of the outdoor unit and does not allow
an increase in noise level and vibration.
• A place where the operation noise and discharged air do not disturb your
neighbors.
• A place which is not exposed to a strong wind.
• A place free of a leakage of combustible gases.
• A place which does not block a passage.
• When the outdoor unit is to be installed in an elevated position, be sure to
secure its feet.
• The allowable length of the connecting pipe.
Model RAS-25S4AVPG-ND RAS-35S4AVPG-ND
Chargeless up to 15 m up to 15 m
Maximum length 25 m 25 m
Additional refrigerant
charging
16 - 25 m
(20 g / 1 m)
16 - 25 m
(20 g / 1 m)
Maximum refrigerant
charging 1.35 kg 1.40 kg
• The allowable height of outdoor unit installation site.
Model RAS-25S4AVPG-ND RAS-35S4AVPG-ND
Maximum height 15 m 15 m
• A place where the drain water does not raise any problems or with good
drainage.
• A place where it can be installed horizontally.
CAUTION
When the outdoor unit is installed in a place where the drain water might
cause any problems, Seal the water leakage point tightly using
a silicone adhesive or caulking compound.
Precautions for adding refrigerant
Use a scale having a precision with at least 10 g per index line when adding
the refrigerant.
Do not use a bathroom scale or similar instrument.
Do not form the
drain hose into
a wavy shape.
Do not rise the
drain hose.
50 mm
or more
Do not put the
drain hose end
into water.
Do not put the
drain hose end in the
drainage ditch.
Drainage
1. Run the drain hose sloped downwards.
NOTE
• The hole should be made at a slight downward slant on the outdoor side.
2. Put water in the drain pan and make sure that the water is drained out of
doors.
3. When connecting extension drain hose, insulate the connecting part of
extension drain hose with shield pipe.
Shield pipe
Inside the room
Drain hose Extension drain hose
Arrange the drain pipe for proper drainage from the unit.
Improper drainage can result in dew-dropping.
CAUTION
This air conditioner has the structure designed
to drain water collected from dew, which forms
on the back of the indoor unit, to the drain pan.
Therefore, do not store the power cord and other
parts at a height above the drain guide.
Drain
guide
Space for pipes
Wall
CAUTION
1. Install the outdoor unit without anything blocking the air discharging.
2. When the outdoor unit is installed in a place always exposed to strong
wind like a coast or on a high storey of a building, secure the normal fan
operation using a duct or a windshield.
3. In particularly windy areas, install the unit such as to avoid admission of
wind.
4. Installation in the following places may result in trouble.
Do not install the unit in such places.
• A place full of machine oil
• A saline-place such as the coast
• A place full of sulfide gas
• A place where high-frequency
waves are likely to be generated
as from audio equipment, welders,
and medical equipment
Strong
wind
• Do not use the supplied drain nipple for draining water. Drain the water
from all the drain holes directly.
• To protect the outdoor unit from snow accumulation, install a holding
frame, and attach a snow protection hood and plate.
* Do not use a double-stacked design.
Precautions about Installation in Regions
with Snowfall and Cold Temperatures
Snow protection plate
Snow protection hood
Snow accumulation line
Holding frame
At least
50 cm
Install at least 50 cm
above the snow
accumulation line.
Anchor
bolts
Front
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CAUTION
Do not apply excess torque. Otherwise, the nut may crack depending on
the conditions.
(Unit : N·m)
Outer dia. of copper pipe Tightening torque
Ø6.35 mm 16 to 18 (1.6 to 1.8 kgf·m)
Ø9.52 mm 30 to 42 (3.0 to 4.2 kgf·m)
Ø12.70 mm 50 to 62 (5.0 to 6.2 kgf·m)
Flare at
indoor unit side
Flare at
outdoor unit side
• Tightening torque of flare pipe connections
The operating pressure of R32 is higher
than that of R22 (approx. 1.6 times).
It is therefore necessary to firmly tighten
the flare pipe connecting sections
(which connect the indoor and outdoor
units) up to the specified tightening torque.
Incorrect connections may cause not only
a gas leakage, but also damage to the
refrigeration cycle.
Draining the Water
• Holes are provided on the base plate of the outdoor unit to ensure that the
defrost water produced during heating operations is drained off efficiently.
If a centralized drain is required when installing the unit on a balcony or
wall, follow the steps below to drain off the water.
1. Proceed with water-proofing by installing the water-proof rubber caps
in the 2 elongated holes on the base plate of the outdoor unit.
[How to install the water-proof rubber caps]
1) Place four fingers into each cap, and insert the caps into the water
drain holes by pushing them into place from the underside of the base
plate.
2) Press down on the outer circumferences of the caps to ensure that
they have been inserted tightly. (Water leaks may result if the caps
have not been inserted properly, if their outer circumferences lift up or
the caps catch on or wedge against something.)
Water-proof rubber caps
(supplied with the outdoor unit)
Base plate
Drain nipple
2. Install the drain nipple and a commercially available drain hose
(32 mm inside diameter), and drain off the water. (For the position where
the drain nipple is installed, refer to the installation diagram of the indoor
and outdoor units.)
• Check that the outdoor unit is horizontal, and route the drain hose at
a downward sloped angle while ensuring that it is connected tautly.
C
L
Base plate
Drain nipple
Commercially available drain hose
or
Ø32
Ø32
Ø32
90º
Do not use ordinary garden hose, but one can flatten and prevent water
from draining.
90
Obliquity Roughness Warp
Refrigerant Piping Connection
1. Cut the pipe with a pipe cutter.
2. Insert a flare nut into the pipe and flare the pipe.
• Projection margin in flaring : A (Unit : mm)
RIDGID (clutch type)
IMPERIAL (wing nut type)
Outer dia. of copper pipe R32
Ø6.35 1.5 to 2.0
Ø9.52 1.5 to 2.0
Ø12.70 2.0 to 2.5
Pipes thickness 0.8 mm or more
Outer dia.
of copper pipe R32 tool used Conventional tool used
Ø6.35 0 to 0.5 1.0 to 1.5
Ø9.52 0 to 0.5 1.0 to 1.5
Ø12.70 0 to 0.5 1.0 to 1.5
Pipes thickness 0.8 mm or more
Flaring
A
Die Pipe
CAUTION
• Do not scratch the inner surface of the flared part when removing burrs.
• Flare processing under the condition of scratches on the inner surface
of flare processing part will cause refrigerant gas leak.
Flare nut
Half union
Externally
threaded side
Internally
threaded side
Use a wrench to secure. Use a torque wrench to tighten.
Align the centers of the connecting pipes and tighten the flare nut as far as
possible with your fingers. Then tighten the nut with a spanner and torque
wrench as shown in the figure.
Tightening connection
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Packed valve handling precautions
• Open the valve stem all the way out, but do not try to open it beyond the
stopper.
Pipe size of Packed Valve Size of Hexagon wrench
12.70 mm and smallers A = 4 mm
15.88 mm A = 5 mm
• Securely tighten the valve cap with torque in the following table:
Cap Cap Size (H) Torque
Valve Rod Cap
H17 - H19 14~18 N·m
(1.4 to 1.8 kgf·m)
H22 - H30 33~42 N·m
(3.3 to 4.2 kgf·m)
Service Port Cap
H14 8~12 N·m
(0.8 to 1.2 kgf·m)
H17 14~18 N·m
(1.4 to 1.8 kgf·m)
A
H
Hexagon wrench
is required.
Service Port Cap
Valve Rod Cap
Evacuating
After the piping has been connected to the indoor unit, you can perform the
air purge together at once.
AIR PURGE
Evacuate the air in the connecting pipes and in the indoor unit using a
vacuum pump. Do not use the refrigerant in the outdoor unit.
For details, see the manual of the vacuum pump.
Be sure to use a vacuum pump with counter-flow prevention function so that
inside oil of the pump does not flow backward into pipes of the air conditioner
when the pump stops.
(If oil inside of the vacuum pump enters the air conditioner, which use R32,
refrigeration cycle trouble may result.)
1. Connect the charge hose from the manifold valve to the service port of
the packed valve at gas side.
2. Connect the charge hose to the port of the vacuum pump.
3. Open fully the low pressure side handle of the gauge manifold valve.
4. Operate the vacuum pump to start evacuating. Perform evacuating for
about 15 minutes if the piping length is 20 meters. (15 minutes for
20 meters) (assuming a pump capacity of 27 liters per minute)
Then confirm that the compound pressure gauge reading is –101 kPa
(–76 cmHg).
5. Close the low pressure side valve handle of the gauge manifold valve.
6. Open fully the valve stem of the packed valves (both gas and liquid sides).
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
Using a vacuum pump
Packed valve at liquid side
Service port (Valve core (Setting pin))
Packed valve at gas side
Vacuum
pump
Vacuum pump adapter for
counter-flow prevention
Charge hose
Handle High
(Keep full closed)
Manifold valve
Pressure gauge
Compound pressure gauge
Handle Low
Charge hose
Connecting pipe
–101 kPa
(–76 cmHg)
CAUTION
• KEEP IMPORTANT 7 POINTS FOR PIPING WORK.
(1) Take away dust and moisture (inside of the connecting pipes).
(2) Tighten the connections (between pipes and unit).
(3) Evacuate the air in the connecting pipes using a VACUUM PUMP.
(4) Check gas leak (connected points).
(5) Be sure to fully open the packed valves before operation.
(6) Reusable mechanical connectors and flared joints are not allowed
indoors. When mechanical connectors are reused indoors, sealing
parts shall be renewed. When flared joints are reused indoors, the
flare part shall be refabricated.
(7) Don’t operate air conditioner in case no refrigerant in the system.
CAUTION
Should be check the compressor operating condition while pumping
down process. It must not any abnormal sound, more vibration.
It is abnormal condition appears and must turn off the Air Conditioner
immediately.
Pump down process
1. Turn off the Air Conditioner system.
2. Connect the charge hose from the manifold valve to the service port of
the packed valve at gas side.
3. Turn on the Air Conditioner system in cooling operation more than
10 minutes.
4. Check the operating pressure of the system should be normal value.
(Ref. with product specification)
5. Release the valve rod cap of both service valves.
6. Use the Hexagon wrench to turning the valve rod of Liquid side fully
close. (*Make sure no entering air into the system)
7. Continue operate Air Conditioner system until and the gauge of manifold
dropped into the range of 0.5 - 0 kgf/cm²
8. Use the Hexagon wrench to turning the valve rod of Gas side fully close.
And turn off the Air Conditioner system immediately thereafter.
9. Remove the gauge manifold from the service port of the packed valve.
10. Securely tighten the valve rod cap to the both service valves.
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14
ELECTRICAL WORKSELECTRICAL WORKS
Indoor unit Outdoor unit
Valve cover
Terminals block
How to install the air inlet grille on the
indoor unit
• When attaching the air inlet grille, the contrary of the removed operation is
performed.
Wiring of the connecting cable can be carried out without removing
the front panel.
1. Remove the air inlet grille.
Open the air inlet grille upward and pull it toward you.
2. Remove the terminal cover and cord clamp.
3. Insert the connecting cable (according to the local cords) into the pipe
hole on the wall.
4. Take out the connecting cable through the cable slot on the rear panel so
that it protrudes about 20 cm from the front.
5. Insert the connecting cable fully into the terminal block and secure it
tightly with screws.
6. Tightening torque : 1.2 N·m (0.12 kgf·m)
7. Secure the connecting cable with the cord clamp.
8. Fix the terminal cover, and air inlet grille on the indoor unit.
Cord clamp
Screw
Screw
Terminal cover
Front panel
1. Remove the valve cover, the electric parts cover and the cord clamp from
the outdoor unit.
2. Connect the connecting cable to the terminal as identified by the
matching numbers on the terminal block of indoor and outdoor unit.
3. Insert the power cord and the connecting cable carefully into the terminal
block and secure it tightly with screws.
4. Use vinyl tape, etc. to insulate the cords which are not going to be used.
Locate them so that they do not touch any electrical or metal parts.
5. Secure the power cord and the connecting cable with the cord clamp.
6. Attach the electric parts cover and the valve cover on the outdoor unit.
Model RAS-25S4KVPG-ND RAS-35S4KVPG-ND
Power source 50 Hz, 220 – 240 V Single phase
Maximum running current 13.00 A 14.00 A
Circuit breaker rating 20 A 20 A
Power supply cable H07RN-F or 60245 IEC66 (2.5 mm2or more)
Connecting cable
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Power Supply Input at Indoor Unit Terminal Block (Recommend)
Indoor Unit Outdoor Unit
Earth line
Power supply
cable
Power supply cable
connect to LN
Power supply cable
Terminal block (L N 1 2 3)
Stripping length of the power
supply cable
N
L
Earth line
50 mm
10 mm
70 mm
10 mm
123
123 LN
1 2 3
Connecting cable
Earth line
Connecting cable
Terminal block
30 mm
40 mm
10 mm
10 mm
Connecting cable connect to
terminal block (1, 2, 3, )
Earth line
Earth line
Connecting
cable
Connecting cable
connect to 123
Power supply
cable
Connecting cable
Terminal block (L N 1 2 3)
Stripping length of the
connecting cable
3
50 mm
Earth line
10 mm
70 mm
10 mm
Power Supply Input at Outdoor Unit Terminal Block (Optional)
Indoor Unit Outdoor Unit
Connecting cable
connect to 123
Earth line
Terminal block (L N 1 2 3)
Connecting cable
Connecting cable Stripping length of the
connecting cable
3
2
L
Earth line
50 mm
10 mm
70 mm
10 mm
123 LN
Connecting cable
Earth line Earth line
Connecting cable Power cord
Terminal block
Power cord
30 mm
30 mm
40 mm 40 mm
10 mm
10 mm
10 mm
10 mm
Connecting cable
connect to terminal
block (1, 2, 3, )
Power supply
terminal block
(L, N, )
Power Supply and Connecting Cable Connection
The power supply can be selected to connect to indoor unit or outdoor unit. Choose proper way and connect the power supply and connecting cable by follow
the instruction as following.
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16
CAUTION
1. The power supply must be same as the rated of air conditioner.
2. Prepare the power source for exclusive use with air conditioner.
3. Circuit breaker must be used for the power supply line of this air conditioner.
4. Be sure to comply power supply and connecting cable for size and wiring method.
5. Every wire must be connected firmly.
6. Perform wiring works so as to allow a general wiring capacity.
7. Wrong wiring connection may cause some electrical part burn out.
8. Incorrect or incomplete wiring is carried out, it will cause an ignition or smoke.
9. This product can be connected to main power supply.
Connection to fixed wiring : A switch which disconnects all poles and has a contact separation at least 3 mm must be incorporated in the fixed wiring.
Power Supply Input Wiring Diagram
Power Supply Input at Indoor Unit Terminal Block (Recommend)
Indoor
Terminal
Block
Power supply input
Outdoor
Terminal
Block
Chassis
Chassis
Power Supply Input at Outdoor Unit Terminal Block (Optional)
Indoor
Terminal
Block
Power supply input
Outdoor
Terminal
Block
Chassis
Chassis
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OTHERSOTHERS
Gas Leak Test
• Check the flare nut connections for the gas leak with a gas leak detector
or soap water.
Check places for
the indoor unit.
Check places for
the outdoor unit.
Remote Control A-B Selection
To separate using of remote control for each indoor unit in case of 2 air
conditioner are installed near.
Remote Control B Setup.
1. Press [RESET] button on the indoor unit to turn the air conditioner ON.
2. Point the remote control at the indoor unit.
3. Push and hold [CHECK] button on back side of Remote Control.
“00” will be shown on the display (Picture 1).
1
4. Press [MODE] during pushing [CHECK]. “B” will show on the display
and “00” will disappear and the air conditioner will turn OFF. The Remote
Control B is memorized (Picture 2).
2
Note: 1. Repeat above step to reset Remote Control to be A.
2. Remote Control A have not “A” display.
3. Default setting of Remote Control from factory is A.
• When two indoor units are installed in the same room or adjacent two
rooms, if operating a unit, two units may receive the remote control signal
simultaneously and operate. In this case, the operation can be preserved
by setting either one remote control to B setting. (Both are set to A setting
in factory shipment.)
• The remote control signal is not received when the settings of indoor unit
and remote control are different.
• There is no relation between A setting/B setting and A room/B room when
connecting the piping and cables.
Test Operation
To switch the TEST RUN (COOL) mode, press [RESET] button for
10 seconds. (The beeper will make a short beep.)
OPERATION /
RESET Button
Auto Restart Function Setting
The product is shipped with Auto Restart function in the ON position.
Turn it OFF if this function is not required.
This product is designed so that, after a power failure, it can restart
automatically in the same operating mode as before the power failure.
INFORMATION
How to turn ON the Auto Restart Function
• Press and hold the [OPERATION] button on the indoor unit for 3 seconds
(3 Beep sounds and OPERATION lamp blink 5 time/sec for 5 seconds).
How to turn OFF the Auto Restart Function
• Press and hold the [OPERATION] button on the indoor unit for 3 seconds
(3 Beep sounds but OPERATION lamp does not blink).
NOTE
• In case of ON timer or OFF timer are set, AUTO RESTART OPERATION
does not activate.
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APPENDIXAPPENDIX
Work instructions The existing R22 and R410A piping can be reused for inverter R32 product installations.
WARNING
Confirming the existence of scratches or dents on
the existing pipes and confirming the reliability of
the pipe strength are conventionally referred to the local site. If the specified conditions can be cleared, it is
possible to update existing R22 and R410A pipes to those for R32 models.
Basic conditions needed to reuse existing pipes Check and observe the presence of three conditions in the refrigerant piping works. 1. Dry (There is no moisture inside of the pipes.) 2. Clean (There is no dust inside of the pipes.) 3. Tight (There are no refrigerant leaks.) Restrictions for use of existing pipes In the following cases, the existing pipes should not be reused as they are. Clean the existing pipes or exchange them with new pipes. 1. When a scratch or dent is heavy, be sure to use new
pipes for the refrigerant piping works.
2. When the existing pipe thickness is thinner than the
specified “Pipe diameter and thickness,” be sure to use new pipes for the refrigerant piping works.
yThe operating pressure of R32 is high (1.6 times
that of R22). If there is a scratch or dent on the pipe or a thinner pipe is used, the pressure strength may be inadequate, which may cause the pipe to break in the worst case.
* Pipe diameter and thickness (mm)
Pipe outer diameter Ø6.4 Ø9.5 Ø12.7
Thickness R32, R410A 0.8 0.8 0.8
R22
3. When the outdoor unit was left with the pipes
disconnected, or the gas leaked from the pipes and the pipes were not repaired and refilled.
yThere is the possibility of rain water or air, including
moisture, entering the pipe.
4. When refrigerant cannot be recovered using a
refrigerant recovery unit.
yThere is the possibility that a large quantity of dirty
oil or moisture remains inside the pipes.
5. When a commercially available dryer is attached to the
existing pipes.
yThere is the possibility that copper green rust has
been generated.
6. When the existing air conditioner is removed after
refrigerant has been recovered.
Check if the oil is judged to be clearly different from
normal oil.
yThe refrigerator oil is copper rust green in color:
There is the possibility that moisture has mixed with
the oil and rust has been generated inside the pipe.
yThere is discolored oil, a large quantity of residue,
or a bad smell.
yA large quantity of shiny metal dust or other wear
residue can be seen in the refrigerant oil.
7. When the air conditioner has a history of the
compressor failing and being replaced.
yWhen discolored oil, a large quantity of residue,
shiny metal dust, or other wear residue or mixture of foreign matter is observed, trouble will occur.
8. When temporary installation and removal of the air
conditioner are repeated such as when leased etc.
9. If the type of refrigerator oil of the existing air
conditioner is other than the following oil (Mineral oil), Suniso, Freol-S, MS (Synthetic oil), alkyl benzene (HAB, Barrel-freeze), ester series, PVE only of ether series.
yThe winding-insulation of the compressor may
deteriorate.
NOTE
The above descriptions are results have been confirmed by our company and represent our views on our air conditioners, but do not guarantee the use of the existing pipes of air conditioners that have adopted R32 in other companies. Curing of pipes When removing and opening the indoor or outdoor unit for a long time, cure the pipes as follows:
yOtherwise rust may be generated when moisture or
foreign matter due to condensation enters the pipes.
yThe rust cannot be removed by cleaning, and new
pipes are necessary.
Placement
location Term Curing manner
Outdoors 1 month or more Pinching
Less than 1 month Pinching or taping
Indoors Every time
Are there scratches or dents on the existing pipes?
Is it possible to operate the existing air conditioner?
yAfter the existing air conditioner is operated in cooling
mode for approx. 30 minutes or longer, * recover the refrigerant.
yFor cleaning the pipes and recovering oil
* Refrigerant recovery: Pump down method
yRemove the existing air conditioner from the piping
and carry out flushing (nitrogen pressure 0.5 MPa) to remove any remains inside of the pipe.
Note: In case of twin pipes, also be sure to flush the
branching pipe.
Connect the indoor / outdoor units to the existing pipe.
yUse a flare nut attached to the main unit for the indoor
/ outdoor units. (Do not use the flare nut of the existing pipe.)
yRe-machine the flare machining size to size for R32.
y(Airtight test), Vacuum dry, Refrigerant charge,
Gas leak check
Test run
Was largely discolored oil or a large quantity
of remains discharged? (When the oil deteriorates,
the color of the oil changes to a muddy
or black color.)
Existing pipes: Cannot be used.
yUse new pipes.
Clean the pipes or use new pipes.
Piping necessary to change the flare nut / machining
size due to pipe compression
1) Flare nut width: H
H
(mm)
Copper pipe outer diameter Ø6.4 Ø9.5 Ø12.7 For R32, R410A 17 22 26 For R22 Same as above 24
2) Flare machining size: A
A
(mm)
Copper pipe outer diameter Ø6.4 Ø9.5 Ø12.7 For R32, R410A 9.1 13.2 16.6 For R22 9.0 13.0 16.2
Becomes a little larger for R32
Do not apply refrigerator oil to the flare surface.
(If there is discharge of remains, it is judged that a large quantity of remains are present.)
YES YES NO
NO NO YES
Nitrogen gas pressure 0.5 MPa
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