Toshiba MCY-MAP0401TP Series, MCY-MAP0501TP Series, MCY-MAP0601TP Series Installation Manual
Installation Manual 1
English
AIR CONDITIONER (MULTI TYPE)
Installation Manual
For commercial use
Outdoor Unit
Model name:
MCY-MAP0401TP Series
MCY-MAP0501TP Series
MCY-MAP0601TP Series
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1121701001
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Installation Manual
EN-1 EN-2
Contents
1 Precautions for Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Accessory Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3 Installation of New Refrigerant Air Conditioner . . . . . . . . . . . . . . . . . .3
4 Installation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
6 Electric Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7 Address Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
8 Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
1 Precautions for Safety
The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.
WARN ING
General
• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its instructions to install
the air conditioner. Otherwise, falling down of the unit may occur, or the unit may cause noise, vibration or water leakage.
• Only a qualified installer or qualified service person is allowed to do installation work. If installation is carried out by a
n
unqualified individual, a fire, electric shocks, injury, water leakage, noise and / or vibration may result.
• 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.
• If using separately sold products, make sure to use Toshiba specified products only. Using unspecified products may cause
fire, electric shock, water leak or other failure.
• Before opening the service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit
breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer or
qualified service person is allowed to remove the service panel of the outdoor unit and do the work required.
• Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breakers for both the
indoor and outdoor units to the OFF position. Otherwise, electric shock may result.
• Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or removal work is being
carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
• Only a qualified installer or qualified service person is allowed to undertake work at heights using a stand of 50 cm or more.
• When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladders
instructions. Also wear a helmet for use in industry as protective gear to undertake the work.
• Wear protective gloves and safety work clothing during installation, servicing and removal.
• Do not touch the aluminium fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some
reason, first put on protective gloves and safety work clothing, and then proceed.
• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and
result in injury.
• When working at height, put a sign in place so that no-one will approach the work location before proceeding with the work.
Parts or other objects may fall from above, possibly injuring a person below. Also, be sure that workers put on helmets.
• When cleaning the filter or other parts of the outdoor unit, set the circuit breaker to OFF without fail, and place a “Work in
progress” sign near the circuit breaker before proceeding with the work.
• The refrigerant used by this air conditioner is the R410A.
• You shall ensure that the air conditioner is transported in stable condition. If you find any part of the product broken, contact
your dealer.
• Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.
• Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by
following its instructions.
• Only qualified service person is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may
give rise to a fire, electric shocks, injury, water leaks and/or other problem.
• Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance and water
drainage. Then perform a trial run to check that the air conditioner is running properly.
Selection of installation location
• If you install the unit in a small room, take appropriate measures to prevent the refrigerant from exceeding the limit
concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you implement the
measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency accident.
• Do not install the air conditioner in a location that may be
subject to a risk of exposure to a combustible gas. If a combustible
gas leaks and becomes concentrated around the unit, a fire may occur.
• When transporting the air conditioner, wear shoes with additional protective toe caps.
• When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if the
bands should break.
• Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may
cause imperfect combustion.
• Places where the operation sound of the outdoor unit may cause a disturbance. (Especially at the boundary line with a
neighbour, install the air conditioner while considering the noise.)
• When transporting the air conditioner, use a forklift and when moving the air conditioner by hand, move the unit with 4
people.
Original instruction
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Installation Manual
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EN
Installation
• Follow the instructions in the installation manual to install the air conditioner. Failure to follow these instructions may cause
the product to fall down or topple over or give rise to noise, vibration, water leakage, etc.
• The designated bolts (M10) and nuts (M10) for securing the outdoor unit must be used when installing the unit.
• Install the outdoor unit property in a location that is durable enough to
support the weight of the outdoor unit. Insufficient
durability may cause the outdoor unit to fall, which may result in injury.
• Install the unit in the prescribed manner for protection against strong wind and earthquake. Incorrect installation may result in
the unit falling down, or other accidents.
• Be sure to fix the screws back which have been removed for installation or other purposes.
Refrigerant piping
• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is
operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over
pressurized, which may cause a injury.
• Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut may cause a crack in the
flare nut after a long period, which may result in refrigerant leakage.
• Ventilate the air if the refrigerant gas leaks during installation. If the leaked refrigerant gas comes into contact with fire, toxic
gas may be produced.
• After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room, poisonous gas
generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.
• When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air
completely so that no gases other than the refrigerant gas will be mixed in the refrigerating cycle. Failure to purge the air
completely may cause the air conditioner to malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes
in contact with fire, noxious gas may be generated.
Electrical wiring
• Only a qualified installer or qualified service person is allowed to carry out the electrical work of the air conditioner. Under no
circumstances must this work be done by an unqualified individual since failure to carry out the work properly may result in
electric shocks and / or electrical leaks.
• When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear gloves to
provide protection for electricians, insulating shoes and clothing to provide protection from electric shocks. Failure to wear
this protective gear may result in electric shocks.
• When executing address setting, test run, or troubleshooting through the checking window on the electric parts box, put on
insulated gloves to provide protection from electric shock. Otherwise you may receive an electric shock.
• Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use
of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and / or a fire.
• Check that the product is properly earthed. (grounding work)
Incomplete earthing may cause electric shock.
• Do not connect the earth line to a gas pipe, water pipe, lightning conductor, or a telephone earth line.
• After completing the repair or relocation work, check that the ground wires are connected properly.
• Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations
and laws.
• Install the circuit breaker where it can be easily accessed by the qualified service person.
• When installing the circuit breaker outdoors, install one which is designed to be used outdoors.
• Under no circumstances must the power cable be extended. Connection trouble in the places where the cable is extended
may give rise to smoking and / or a fire.
• Electrical wiring work shall be conducted according to law and regulation in the community and installation manual. Failure to
do so may result in electrocution or short circuit.
• Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit. Capacity overflow
may occur on the terminal block and may result in fire.
• When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wires
securely to prevent them applying external force to the terminals. Improper connection or fixing may result in fire.
Test run
• Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor
unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an
electric shock if the power is turned on without first conducting these checks.
• When you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of burning,
abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do
not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service person.
Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for instance)
until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause mechanical
problems to escalate or result in electric shocks or other failure.
• After the work has finished, be sure to use an insulation tester set (500 V Megger) to check the resistance is 1 M τ or more
between the charge section and the non-charge metal section (Earth section). If the resistance value is low, a disaster such
as a leak or electric shock is caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage.
Then conduct a test run to check that the air conditioner is operating properly.
Explanations given to user
• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where
the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.
• If you have discovered that the fan guard is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF
position, and contact a qualified service person to have the repairs done. Do not set the circuit breaker to the ON position
until the repairs are completed.
• After the installation work, follow the Owner’s Manual to explain to the customer how to use and maintain the unit.
Relocation
• Only a qualified installer or qualified service person is allowed to relocate the air conditioner. It is dangerous for the air
conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and / or
vibration may result.
• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting
the refrigerant pipe with the service valve left open and the compressor still operating will cause air or other gas to be sucked
in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or
other trouble.
• Never recover the refrigerant into the outdoor unit. Be sure to use a refrigerant recovery machine to recover the refrigerant
when moving or repairing. It is impossible to recover the refrigerant into the outdoor unit. Refrigerant recovery into the
outdoor unit may result in serious accidents such as explosion of the unit, injury or other accidents.
CAUTION
New Refrigerant Air Conditioner Installation
• This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer.
• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx.
1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed.
Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the
refrigerating cycle.
• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main
unit and installation tools are changed from those for the conventional refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant (R410A).
• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.
To Disconnect the Appliance from Main Power Supply.
• This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.
The installation fuse (all type can be used) must be used for the power supply line of this conditioner.
EN-3 EN-4
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Installation Manual
EN-5 EN-6
2 Accessory Parts
NOTE
• Before installing the unit, check that the unit has the correct model name to prevent the wrong unit from being
installed in the wrong place.
• Before proceeding to braze the refrigerant pipe, be sure to pass nitrogen through the pipe.
• Before installing the indoor units, read the instructions in the installation manual provided with the indoor units.
• Before installing a branch pipe, read the instructions in the installation manual provided with the branch pipe kit.
3 Installation of New Refrigerant Air
Conditioner
This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.
• R410A refrigerant is vulnerable to impurities such as water, oxidizing membranes, or oils because the pressure of
R410A refrigerant is higher than that of the former refrigerant by approximately 1.6 times.
As well as the adoption of the new refrigerant, the refrigerating oil has been also changed. Therefore, pay attention
so that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle of the new refrigerant
air conditioner during installation.
• To prevent mixing of refrigerant or refrigerating oil, the size of the charge port of the main unit or connecting section
of the installation tool differs to that of an air conditioner for the former refrigerant.
Accordingly, exclusive tools are required for the new refrigerant (R410A) as shown below.
• For connecting pipes, use new and clean piping materials so that water or dust does not enter.
Required tools and cautions on handling
It is necessary to prepare the tools and parts for installation as described below. The tools and parts which will be
newly prepared in the following items should be restricted to exclusive use.
Explanation of symbols
: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.)
: Former tool is available.
Used tools Usage Proper use of tools / parts
Gauge manifold
Vacuuming, charging refrigerant
and operation check
Exclusive to R410A
Charging hose Exclusive to R410A
Charging cylinder Charging refrigerant
Unusable (Use the Refrigerant charging
balance.)
Gas leak detector Checking gas leak Exclusive to R410A
Vacuum pump Vacuum drying
Usable if a counter-flow preventive adapter is
attached
Vacuum pump with counterflow Vacuum drying R22 (Existing article)
Flare tool Flare processing of pipes Usable by adjusting size
Bender Bending processing of pipes R22 (Existing article)
Refrigerant recovery device Recovering refrigerant Exclusive to R410A
Torque wrench Tightening flare nut Exclusive to Ø12.70 mm and Ø15.88 mm
Pipe cutter Cutting pipes R22 (Existing article)
Refrigerant canister Charging refrigerant
Exclusive to R410A
Enter the refrigerate name for identification
Welding machine / Nitrogen gas
cylinder
Welding of pipes R22 (Existing article)
Refrigerant charging balance Charging refrigerant R22 (Existing article)
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For protecting wires (pipe cover)
For protecting passage part (pipe cover)
Part name Q’ty Shape Usage
Installation Manual 1 This manual Hand this directly to the customer.
Protective bush 1
Guard material for passage part 1
Rub-Sheet 1
For protecting small lizard.
Installation Manual
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EN
4 Installation Conditions
Before installation
Be sure to prepare to the following items before installation.
Airtight test
1 Before starting an airtight test, further tighten the spindle valves on the gas and liquid sides.
2 Pressurize the pipe with nitrogen gas charged from the service port to the design pressure to conduct an
airtight test.
3 After the airtight test is completed, evacuate the nitrogen gas.
Air purge
• To purge air, use a vacuum pump.
• Do not use refrigerant charged in the outdoor unit to purge air. (The air purge refrigerant is not contained in the
outdoor unit.)
Electrical wiring
Be sure to fix the power wires, indoor / outdoor connecting wires and remote controller wires with clamps so that they
do not come into contact with the cabinet, etc.
Earthing
WARN ING
Make sure that proper earthing is provided.
Improper earthing may cause an electric shock. For details on how to check earthing, contact the dealer who installed
the air conditioner or a professional installation company.
• Proper earthing can prevent charging of electricity on the outdoor unit surface due to the presence of a high
frequency in the frequency converter (inverter) of the outdoor unit, as well as prevent electric shock. If the outdoor
unit is not properly earthed, you may be exposed to an electric shock.
• Be sure to connect the earth wire (grounding work).
Incomplete earthing can cause an electric shock.
Do not connect earth wires to gas pipes, water pipes, lightning rods or earth wires for telephone wires.
Test run
Turn on the leakage breaker at least 12 hours before starting a test run to protect the compressor.
CAUTION
Incorrect installation work may result in a malfunction or complaints from customers.
Installation location
WARN ING
Install the outdoor unit properly in a location that is durable enough to support the weight of the outdoor unit.
Insufficient durability may cause the outdoor unit to fall, which may result in injury.
This outdoor unit has a weight of about 74 kg. or more. Pay special attention when installing the unit onto a wall
surface.
CAUTION
Do not install the outdoor unit in a location that is subject to combustible gas leaks.
Accumulation of combustible gas around the outdoor unit may cause a fire.
Install the outdoor unit in a location that meets the following conditions after the customer’s consent is
obtained.
• A well-ventilated location free from obstacles near the air intake and air discharge
• A location that is not exposed to rain or direct sunlight
• A location that does not increase the operating noise or vibration of the outdoor unit
• A location that does not produce any drainage problems from discharged water
Do not install the outdoor unit in the following locations.
• A location with a saline atmosphere (coastal area) or one that is full of sulfide gas (hot-spring area) (Special
maintenance is required.)
• A location subject to oil, vapor, oily smoke, or corrosive gases
• A location in which organic solvent is used
• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on the interior of
the air conditioner, it may spontaneously combust and start a fire.
• A location where high-frequency equipment (including inverter equipment, private power generator, me
dical
equipment, and communication equipment) is used
(Installation in such a location may cause malfunction of the air conditioner, abnormal control or problems due to
noise from such equipment.)
• A location in which the discharged air of the outdoor unit blows against the window of a neighboring house
• A location where the operating noise of the outdoor unit is transmitted
• When the outdoor unit is installed in an elevated position, be sure to secure its fixing leg.
• A location in which drain water poses any problems.
When collectively draining discharged water completely, use a drain pan.
EN-7 EN-8
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Installation Manual
EN-9 EN-10
CAUTION
1. Install the outdoor unit in a location where the discharge air is not blocked.
2. When an outdoor unit is installed in a location that is always exposed to strong winds like a coast or on the high
stories of a building, secure normal fan operation by using a duct or wind shield.
3. When installing the outdoor unit in a location that is constantly exposed to strong winds such as on the upper stairs
or rooftop of a building, apply the wind-proofing measures referred to in the following examples.
1) Install the unit so that its discharge port faces the wall of the building.
Keep a distance 500 mm or more between the unit and wall surface.
2) Leave a clearance of at least 250 mm between the right side panel and wall or other surface of the building for
installation and servicing purposes.
250 mm
3) Leave a clearance of at least 200 mm between the rear panel and wall or other surface of the building in order to
maintain the performance of the air conditioner.
4) Consider the wind direction during the operational season of the air conditioner, and install the unit so that the
discharge port is set at a right angle relative to the wind direction.
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Strong wind
Strong wind
200 mm
500 mm
Installation Manual
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EN
Necessary space for installation
(Unit: mm)
Obstacle at rear side
Upper side is free
1. Single unit installation
2. Obstacles on both right and left sides
3. Serial installation of two or more units
The height of the obstacle should be lower than the
height of the outdoor unit.
Obstacle also above unit
Obstacle in front
Above unit is free
1. Single unit installation
2. Serial installation of two or more units
Obstacle also above unit
150 or more
150 or more
300 or more
200 or more
The height of the
obstacle should be
lower than the height
of the outdoor unit.
150 or
more
200 or more
300 or
more
300 or
more
300 or
more
150 or
more
500 or more
500 or more
1,000 or
more
1,000 or more
1000 or more
Obstacles in both front and rear of unit
Open above and to the right and left of the unit.
The height of an obstacle in both the front and rear of the
unit, should be lower than the height of the outdoor unit.
Standard installation
1. Single unit installation
2. Serial installation of two or more units
Serial installation in front and rear
Open above and to the right and left of the unit.
The height of an obstacle in both the front and rear of the
unit should be lower than the height of the outdoor unit.
Standard installation
Installation of outdoor unit
• Before installation, check the strength and horizontalness of the base so that abnormal sounds do not
emanate.
• According to the following base diagram, fix the base firmly with the anchor bolts.
(Anchor bolt, nut: M10 x 4 pairs)
150 or
more
1,000
or more
1,000
or more
200 or
more
300 or more
300 or
more
1,000 or
more
300 or
more
1,500 or
more
2,000 or
more
200 or
more
EN-11 EN-12
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Back side
150
600
150
400
Drain hole
365
Knock out hole
525
45
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Installation Manual
EN-13 EN-14
• As shown in the figure below, install vibration-proof rubber pads to directly support the bottom surface of the fixing leg.
* When installing the foundation for an outdoor unit with downward piping, consider the piping work.
Set the out margin of the anchor bolt to 15 mm or less.
CAUTION
• Carry out the installation work by following the prescribed procedure to make provision against the shaking of the
unit caused by strong winds, earthquakes, etc.
• Failure to carry out the installation work as prescribed may lead to the unit tipping over, in turn causing an accident.
Fixing leg
GOOD GOOD
Foundation
Absorb vibration with
vibration-proof rubber
pads
Foundation
Bottom plate of
outdoor unit
Support the bottom surface of the
fixing leg that is in contact with and
underneath the bottom plate of the
outdoor unit.
NO GOOD
If only the end of the
fixing leg is supported,
it may deform.
Do not support the outdoor
unit only with the fixing leg.
Foundation
15 or less
5 Refrigerant Piping
Leading out the pipes
• The indoor/outdoor unit connecting pipes can be connected in any of 4 directions. Use a screwdriver to punch out
the knockout part of the front panel, side panel or base. Wear heavy work gloves to protect yourself from injury
while doing this work. After punching out the knockout hole in a manner which ensures that the pipes and wires will
not be damaged in any way, remove the burrs from around the hole.
Optional installation parts (locally procured)
REQUIREMENT
Follow the instructions in the installation manual provided with the branch pipe kit and the instructions in the
installation manual of the indoor unit to connect the refrigerant pipe between the branch pipe and indoor unit.
Parts name Q’ty
A
Refrigerant piping
Liquid side:
Ø9.52 mm
Gas side: Ø15.88 mm(4,5HP),Ø19.05 mm(6HP)
One each
B
Pipe insulating material
(polyethylene foam, 10 mm thick)
1
C Putty, PVC tape One each
Rear
Side
Bottom
Front
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Be sure to wear heavy work gloves while working.
Supplied protective bush
Supplied passage hole
guard material
* Attach the guard material
securely so that it does
not come loose.
Sticking RUBBER SHEET
after nish connecting of
PIPE-CONNECT follow as the picture.
RUBBER SHEET
Knockout of pipe cover
Installation Manual
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EN
Refrigerant piping connection
CAUTION
TAKE NOTE OF THESE 4 IMPORTANT POINTS BELOW FOR PIPING WORK
1. Keep dust and moisture away from inside the connecting pipes.
2. Tightly connect the connection between pipes and the unit.
3. Evacuate the air in the connecting pipes using a VACUUM PUMP.
4. Check for gas leaks at connection points.
Pipe connection method
Flaring
1. Cut the pipe with a pipe cutter.
2. Remove the burr inside of the pipe.
When removing the burr, be careful so that chips do not fall into the pipe.
3. Remove the flare nuts attached to the outdoor / indoor unit, then insert them into each of the pipes.
4. Flare the pipes.
See the following table for the projection margin (A) and flaring size (B).
* In case of flaring for R410A with the conventional flare tool, pull the tool out approx. 0.5 mm more than that for R22
to adjust
it to the specified flare size.
The copper pipe gauge is useful for adjusting the projection margin size.
Pipe A B Flare Nut
Outside
diameter
Thickness
Rigid
(clutch type)
R410A tool
Imperial
(wing nut type)
R410A tool
Width across
flat
Tighten torque
mm mm mm mm mm mm N•m kgf•m
6.35 0.8 0 to 0.5 1.0 to 1.5 9.9 17 14 to 18 1.4 to 1.8
9.52 0.8 0 to 0.5 1.0 to 1.5 13.2 22 33 to 42 3.3 to 4.2
12.70 0.8 0 to 0.5 1.0 to 1.5 16.6 26 49 to 61 4.9 to 6.1
15.88 1.0 0 to 0.5 1.0 to 1.5 19.7 29 63 to 77 6.6 to 7.7
90°
Obliquity Roughness Warp
A
B
REQUIREMENT
• For a brazing work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside of
the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.
• Use clean and new pipes for the refrigerant pipes and perform piping work so that water or dust does not
contaminate the refrigerant.
* Remove all flux after brazing.
• Be sure to use two spanners to loosen or tighten the flare nut. If one spanner is used, the required level of
tightening cannot be obtained. Tighten the flare nut with the specified torque.
• Do not apply refrigerant oil to the surface of the flare.
Coupling size of brazed pipe
(Unit: mm)
Connected section
External size Internal size
Standard outer dia. of
connected copper
pipe
Connected section
Min. thickness of
coupling
External size Internal size
Min. depth of
insertion
Oval value
Standard outer dia.
(Allowable difference)
CFKG
6.35 6.35 (±0.03) 6.45 ( ) 7 6 0.06 or less
0.50
9.52 9.52 (±0.03) 9.62 ( ) 8 7 0.08 or less
0.60
12.70 12.70 (±0.03) 12.81 ( ) 9 8 0.10 or less
0.70
15.88 15.88 (±0.03) 16.00 ( ) 9 8 0.13 or less
0.80
K
ØC
G
ØF
+0.04
-0.02
+0.04
-0.02
+0.04
-0.02
+0.04
-0.02
EN-15 EN-16
2FAN_IM_DB04905901-00.book Page 8 Friday, October 24, 2014 3:19 PM
19.05
1.0 0 to 0.5 1.0 to 1.5
24.0 36
100 to 120
10 to 12
19.05 19.05 (±0.03)
11
10 0.15 or less
0.80
19.19 (
+0
-0..003
3
)
– 9 –
Installation Manual
EN-17 EN-18
Selection of pipe materials and size
Selection of pipe material
Material: Phosphorus deoxidation seam-less pipe
Capacity code of indoor and outdoor units
• For the indoor unit, the capacity code is decided at each capacity rank.
• The capacity codes of the outdoor units are decided at each capacity rank.
The maximum No. of connectable indoor unit and the total value of capacity codes of the indoor units are also decided.
Minimum wall thickness for R410A application
* If the pipe size is Ø19.05, use a suitable material.
Tab le 1
Tab le 2
Soft Half Hard or Hard OD (Inch) OD (mm) Minimum wall thickness (mm)
OK OK 1/4” 6.35 0.80
OK OK 3/8” 9.52 0.80
OK OK 1/2” 12.70 0.80
OK OK 5/8” 15.88 1.00
NG * OK 3/4” 19.05 1.00
Indoor unit
capacity type
Capacity code
Indoor unit
capacity type
Capacity code
Equivalent to HP
Equivalent to
capacity
Equivalent to HP
Equivalent to
capacity
018 type 2.0 5.6
007 type 0.8 2.2
020 type 2.25 6.3
008 type 0.9 2.5
024 type 2.5 7.1
009 type 1.0 2.8
027 type 3.0 8.0
010 type 1.1 3.2
012 type 1.25 3.6
014 type 1.5 4.0
015 type 1.7 4.5
017 type 1.85 5.0
Outdoor unit
capacity
type
Capacity code
No. of connectable
indoor units
Total capacity code of connectable indoor
units
Equivalent to HP Min. (HP) Max. (HP)
040 type 4
2 to 6 3.2 5.2
050 type 5
2 to 6 4.0 6.5
Selection of refrigerant piping
No. Piping parts Name Selection of pipe size Remarks
(1)
Outdoor unit
1st branching
section
Main pipe
Size of main pipe
Same as connecting
pipe size of the outdoor
unit.
(2)
Branching section
Branching section
Branching
pipe
Pipe size between branching se
ctions
Pipe size differs based
on the total capacity
code value of indoor
units at the downstream
side. If the total value
exceeds the capacity
code of the outdoor unit,
apply the capacity code
of the outdoor unit. (See
Table 1 and 2.)
Outdoor unit
Outdoor unit capacity type Gas pipe Liquid pipe
0401 type
15.88 9.52
0501 type 15.88 9.52
Total capacity codes of
indoor units at down stream
side
Gas pipe Liquid pipe
Equivalent to HPEquivalent to
capacity
Below 2.4
Below 6.4
12.70 9.52
2.4 or more
Below 6.4
15.88 9.52
2FAN_IM_DB04905901-00.book Page 9 Friday, October 24, 2014 3:19 PM
(4)
(4)
(2)
(1)
(3)
(2)
(3)
(3)
Y-shaped
branching joint
(4)
Main pipe
1st branching
section
Branching pipe
Branching
header
unit
Indoor
Branching
pipe
((33))((33))
(3)
0601 type 19.05
9.52
Below 6.4 6.4 or more 19.05
9.52
060 type 6
2 to 6 4.8 7.8
4.0
1
5.0
1
6.0
1
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