Toshiba RBC-AIP1 User manual

Refrigerant Monitoring
TCUK
-
RMv1_2014_RBCAIP1
Installation Manual
RBCAIP1
Leak Detection Panel

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Original instruction
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
Contents
1 Precautions for safety .......................................................... 5
2 Installation of new refrigerant air conditioner ......................... 8
3 Selection of installation place ............................................... 9
4 Refrigerant piping ................................................................. 9
5 Electric wiring ....................................................................... 13
6 Installation Examples ............................................................ 14
7 Control Schematic................................................................. 15
8 Specifications ....................................................................... 16
18
9 RBC-AIP1 Leak Detection Panel ...........................................

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Thank you for purchasing Toshiba air conditioning products.
This Installation Manual describes the installation method of the outdoor unit. For installation of indoor units, follow the Installation
Manual supplied with the indoor unit.
Moreover, as this installation manual includes the important articles concerning the “Machinery” Directive (Directive 2006/42/ EC), please
read through the manual and make sure you understand it. After installation, give this Installation Manual, the Owner’s Manual and the
Installation Manual supplied with the indoor unit to the customer and tell the customer to keep them safe.
Prepare an exclusive power source for indoor units, independent to that for outdoor units.
Y-shaped branching joints or a branching header (separately purchased) are required for connecting pipes between indoor and outdoor
units. Choose either of them considering the system capacity concerning piping. For installing branching pipes, refer to the installation
manual of the Y-shaped branching unit or branching header (separately purchased).
Outdoor connecting branching joints are required for connecting between outdoor units.
Generic Denomination: Air Conditioner
Definition of Qualified Installer or Qualified Service Person
The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person. When any of
these jobs is to be done, ask a qualified installer or qualified service person to do them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below.
Agent Qualifications and knowledge which the agent must have
Qualified installer
The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by
Toshiba Carrier Corporation. He or she has been trained to install, maintain, relocate and remove the air conditioners made
by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or
individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations.
The qualified installer who is allowed to do the electrical work involved in installation, relocation and removal has the
qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and he or she is a person who
has been trained in matters relating to electrical work on the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
The qualified installer who is allowed to do the refrigerant handling and piping work involved in installation, relocation and
removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local laws and
regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping work on
the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by
an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this
work.
The qualified installer who is allowed to work at heights has been trained in matters relating to working at heights with the air
conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an
individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.
Qualified service
person
The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made
by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air
conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an
individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these
operations.
The qualified service person who is allowed to do the electrical work involved in installation, repair, relocation and removal
has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and he or she is a
person who has been trained in matters relating to electrical work on the air conditioners made by Toshiba Carrier
Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.
The qualified service person who is allowed to do the refrigerant handling and piping work involved in installation, repair,
relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local
laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping
work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related
to this work.
The qualified service person who is allowed to work at heights has been trained in matters relating to working at heights with
the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by
an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this
work.
Definition of Protective Gear
When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work
clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the
table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other
injuries.

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Work undertaken
Protective gear worn
All types of work Protective gloves
‘Safety’ working clothing
Electrical-related
work
Gloves to provide protection for electricians and from heat Insulating shoes
Clothing to provide protection from electric shock
Work done at heights
(50 cm or more) Helmets for use in industry
Transportation of
heavy objects Shoes with additional protective toe cap
Repair of outdoor unit Gloves to provide protection for electricians and from heat
Warning Indications on the Air Conditioner Unit
Warning indication Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies before servicing.
WARNING
Moving parts.
Do not operate unit with grille removed. Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned when removing this panel.
CAUTION
Do not touch the aluminium fins of the unit. Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before the operation; otherwise there might be the burst.
CAUTION
Do not climb onto the fan guard. Doing so may result in injury.

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1 Precautions for safety
T he m an uf ac t ur er s h all n ot a ss um e an y l iab il it y f or t h e d am ag e c aus ed b y n ot o bs er v ing t h e d es cr i pt i on of t h is m an u al .
WARNING
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 (*1) or qualified service person (*1) is allowed to do installation work. If installation is carried out by an
unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.
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.
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.
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 (*1) or qualified service
person (*1) 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 (*1) or qualified service person (*1) is allowed to undertake work at heights using a stand of 50 cm or more
or to remove the intake grille of the indoor unit to undertake 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.
When working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the work. Parts
and other objects may fall from above, possibly injuring a person below.
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 disassemble, modify, repair or move the product yourself. Doing so may cause fire, electric shock, injury or water leaks. Ask a
qualified installer or qualified service person to do any repairs or to move the product.
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 in a location where flammable gas may leaks are possible. If the gas should leak and accumulate around the unit, it
may ignite and cause a fire.
When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other protective clothing.
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.
Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure themselves or receive electric shocks if
they poke their fingers or other objects into the indoor unit while the air conditioner is running.
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.)
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 or other failure.
The designated bolts (M12) and nuts (M12) 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.

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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 an 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 the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire
source, such as a cooking range, noxious gas may be generated.
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 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 (*1) or qualified service person (*1) 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 and from heat, 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 electrical control box, put on
insulated heat-proof gloves, insulated shoes and other clothing 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 wire to a gas pipe, water pipe, lightning conductor, or a telephone earth wire.
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 agent.
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 control 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 2 MΩ 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 grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position,
and contact a qualified service person(*1) 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.

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Relocation
Only a qualified installer (*1) or qualified service person (*1) 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.
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
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.
Disconnection of the appliance from mains 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.

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2Installation 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 counter flow 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 Ø12.7 mm and Ø15.9 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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3Selection of Installation Place
Upon customer’s approval, install the air conditioning apparatus in a place which satisfies the following
conditions:
Place where it can be installed horizontally.
Place which can reserve a sufficient service space for safe maintenance or checks.
Place where there is no problem even if the drained water overflows.
Avoid the following places:
Salty places (seaside area) or places with much gas sulphide (hot spring area) (If selecting such a place, special maintenance is
required.)
Places where oil (including machine oil), steam, oil smoke or corrosive gas is generated.
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.
Places where an organic solvent is used.
Chemical plants with a cooling system using liquid carbon dioxide.
Places where a device generating high frequency (inverter, non-utility generator, medical apparatus, or communication equipment) is
set. (Malfunction or abnormal control of the air conditioner, or interference to devices listed above may occur.)
Places unable to bear the weight of the apparatus.
Places with poor ventilation.
Places where ambient temperature falls below -15°C for more than 72 hours running.
4Refrigerant Piping
-GAS Label
The air conditioning product contains fluorinated greenhouse gases covered by the Kyoto Protocol
Chemical Name of Gas R410A
Global Warming Potential (GWP) of Gas 1975
CAUTION
1. Stick the enclosed refrigerant label adjacent to the charging and/or recovering location.
2. Clearly write the charged refrigerant quantity on the refrigerant label using indelible ink. Then, place the included transparent
protective sheet over the label to prevent the writing from rubbing off.
3. Prevent emission of the contained fluorinated greenhouse gas. Ensure that the fluorinated greenhouse gas is never vented to the
atmosphere during installation, service or disposal. When any leakage of the contained fluorinated greenhouse gas is detected, the
leak shall be stopped and repaired as soon as possible.
4. Only qualified service personnel are allowed to access and service this product.
5. Any handling of the fluorinated greenhouse gas in this product, such as when moving the product or recharging the gas, shall comply
under (EC) Regulation No. 842/2006 on certain fluorinated greenhouse gases and any relevant local legislation.
6. Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
7. Contact dealers, installers, etc., for any questions.

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WARNING
If the refrigerant gas leaks during installation, ventilate the room. If the leaked refrigerant gas comes into contact with fire, noxious
gas may be generated.
After installation, check that the refrigerant gas does not leak.
If the refrigerant gas leaks into the room and comes into contact with fire such as a fan heater, stove, or kitchen range, noxious gas
may be generated.
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 a double spanner to loosen or tighten the flare nut. If a single spanner is used, the required level of tightening cannot
be obtained. Tighten the flare nut with the specified torque. (If it is hard to loosen or tighten the flare nut of the balance pipe or
packed valve of the liquid side with a double spanner, loosen or tighten the flare nut while holding the valve mounting plate with a
spanner.)
Extruding margin of copper pipe with flare tools: A (Unit: mm)
Copper pipe outer dia. +0
A -0.4
9.5 13.2
12.7 16.6
15.9 19.7
19.1 24.0
Extruding margin of copper pipe with flare machining: B (Unit: mm)
Copper pipe
outer
dia.
When using
R410A tool
When using
conventional tool
9.5 12.7 15.9
19.1 0 to 0.5 1.0 to 1.5
When using the conventional flare tool, to connect R410A pipes with flaring, make a margin approx. 0.5 mm longer than that of an
R22 pipe so that the flare size matches the one specified. It is convenient to use a copper pipe gauge for size adjustment of the
extruding margin. Half hard or hard materials may be cracked and may cause leakage of refrigerant when it is flared.
After flaring the connection, be sure the flared part is not damaged, deformed, uneven, or flattened, and that there are no cutting
chips on it. Coupling size of brazed pipe
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)
CFK G
6.35 6.35 (±0.03) 6.45
(+0
.04
-0.02) 7 6 0.06 or less 0.50
9.52 9.52 (±0.03) 9.62
(+0.04
-0.02) 8 7 0.08 or less 0.60
12.70 12.70 (±0.03) 12.81
(+0.04
-0.02) 9 8 0.10 or less 0.70
15.88 15.88 (±0.03) 16.00
(+0.04
-0.02) 9 8 0.13 or less 0.80
19.05 19.05 (±0.03) 19.19
(+0.03
-0.03) 11 10 0.15 or less 0.80
22.22 22.22 (±0.03) 22.36
(+0.03
-0.03) 11 10 0.16 or less 0.82
28.58 28.58 (±0.04) 28.75
(+0.06
-0.02) 13 12 0.20 or less 1.00
34.92 34.90 (±0.04) 35.11
(+0.04
-0.04) 14 13 0.25 or less 1.20
38.10 38.10 (±0.05) 38.31
(+0.08
-0.02) 15 14 0.27 or less 1.26
41.28 41.28 (±0.05) 41.50
(+0.08
-0.02) 15 14 0.28 or less 1.35
Connected section
External size Internal size
B

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Warnings on Refrigerant Leakage
Check of Concentration Limit
The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration
will not exceed a set limit.
The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted
by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its
concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number
of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for
effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc.
Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual
air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation
procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency,
measures can be made before injury can occur).
1. In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The concentration is calculated as detailed below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
≤ Concentration limit (kg/m3)
The concentration limit of R410A which is used in multi air conditioners is 0.3 kg/m3.
▼ NOTE 1
If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each
independent device.
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A, B and C is 10 kg. The possible amount of leaked refrigerant gas in rooms D, E
and F is 15 kg.
▼ NOTE 2
The standards for minimum room volume are as follows. 1) No partition (shaded portion)

[12]
2. When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an
opening 0.15 % or larger than the respective floor spaces at the top or bottom of the door).
3. If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest room of course
becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room
where the density limit is exceeded, the volume of the next smallest room becomes the object.
▼ NOTE 3
The minimum indoor floor area compared with the amount of refrigerant is roughly as follows: (When the ceiling is 2.7 m high)
IMPORTANT

[13]
5Electric wiring
WARNING
The appliance shall be installed in accordance with national wiring regulations.
Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.
CAUTION
Perform wiring of power supply complying with the rules and regulations of the local electric company.
Refer to H07RN-F or 60245 IEC 66 regarding specifications of the power supply wire.
Do not connect 380 V - 415 V power to the terminal blocks for control cables (U1, U2, U3, U4, U5, U6); otherwise, the unit may break
down.
Be sure that electric wiring does not come into contact with high-temperature parts of piping; otherwise, the coating of cables may
melt and cause an accident.
After connecting wires to the terminal block, take off the traps and fix the wires with cord clamps.
Follow the same structure for both the control wiring and refrigerate piping.
Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished.
Refer to the installation manuals of indoor unit and flow selector unit for power wiring and communication wiring of indoor unit and
flow selector unit.
Communication wiring and central control wiring use 2-core non-polarity wires. Use 2-core shield wires to prevent noise trouble.
Connecting the closed end terminal of shield wire. (Connected to all connecting sections in each unit)
Use 2-core non-polarity wire for remote controller. (A, B terminals) Use 2-core non-polarity wire for wiring of group control. (A, B
terminals)
Table-1 Communication wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4)
Wiring 2-core, non-polarity
Type Shield wire
Size / Length 1.50mm
2
(min. 1.25 mm
2
): Up to 1000m
2.50mm2(min. 2.00 mm2): Up to 2000m (*1)
(*1): Total length of Communication wiring length for all refrigerant circuits (L1 + L2 + L3 + L4)
Table-2 Communication wiring between outdoor units (L5)
Wiring 2-core, non-polarity
Type Shield wire
Size / Length 1.50mm
2
(min.1.25 mm
2
to 2.0 mm
2
) up to 100m (L5)
Table-3 Remote controller wiring (L6, L7)
Wire 2-core, non-polarity
Size 1.50mm
2
(min. 0.5 mm
2
to 2.0 mm
2
)
Length
Up to 500m (L6 + L7)
Up to 400m in case of wireless remote controller in group control.
Up to 200m total length of communication wiring between indoor units L6

[14]
6Installation Examples

[15]
7Control Schematic

[16]
8Specification
LEAK DETECTION PANEL RBC-RD6 RBC-RD6-DI RBC-RD7
LEAK DETECTION PANEL
LEAK DETECTION REPEATER PANEL (MULTI-ROOM INDICATION) RBC-RP1
REFRIGERANT LEAK DETECTOR
LEAK DETECTION ROOM INDICATOR RBC-RI1
PRODUCTS VRF RAV-DI/SDI VRF - RAV DI/SDI VRF - RAV DI/SDI VRF - RAV DI/SDI
Standard Rating (IP) 65 40 40 50
Enclosure Metal Metal Plastic Plastic
Colour Light grey RAL 7035 Light grey RAL 7035 White Black
Colour Cost Option Upgrade (Various) - - Facia Plate -
Height (mm) 600 500 92 114
Width (mm) 400 400 92 194
Depth (mm) 200 150 60 62
Weight (kg) 12 15 0.2 700
Isolating Gas Valve (Supplied Loose) (mm) Bespoke per application - - - -
Isolating Liquid Valve (Supplied Loose) (mm) Bespoke per application - - Bespoke per application
Isolating Suction Valve (Supplied Loose) (mm) Bespoke per application - - Bespoke per application
Sensor(s) Type (Supplied Loose) Discharge pipe sensing - - -
Interface Cards (Supplied Loose)
2 x TCB-PCM04E
-
---
Sockets CN510 &
CN512
---
Option BMS Interface Card (Panel Fitted) - RBC-FDP3 - - -
Audible Alarm Yes Yes Yes -
Audible Alarm Sound Level (dB) - - 95 (3400Hz ±500) -
Alarm Mute Yes (Key Switch) Yes Mute Button / Powered
OFF -
Visual Indicator (Neon)
Live Live
Yes Leak Detected
Alarm
Healthy
Alarm
Fault Code Generated To Local Remote Controller - - - -
Interconnecting Multi-core Cable Length / Fused (m) - - - -
Interconnecting Cable Max. Length (m) 12 12 100 100 24
Interconnecting Cable Type (mm2) 0.75 0.75 3 core 1.5 3 core 1.5 0.5
Interconnecting Cable Type Remote Indication - 2 core 0.75 -
Control Circuit Power (Volts) 24 24 24 24 (via RP1)
Power Supply 1 phase 230v 50Hz 1 phase 230v 50Hz 1 phase 230v 50Hz - 1 phase 230v 50Hz
Power Consumption Min. / Max. (mA) - - - -
Suggested Fused Supply (Amps) 3 3 6 (via RP1) 1
Interface Card(S) (Required Accessory) *Max. 4 Circuits - *RBC-RI1 - -
In Room Detector (Required Accessory) *Max. 10 per Circuit - *RBC-RD3 / RCS1 /
RCS2
-*RBC-RD3 / RCS1 /
RCS2
Circuit Protection Fuse Supplied With Cable - - - -
Cable Link For Remote ON / OFF (Ving Card) - - - -
Screw Terminal Connections - - - -
Fail Safe Relay Operation - - - -
Mounting Height Above Floor Level (mm) - - - -
On-site Commissioning Support - - - -

[17]
7Specification
RBC-AIP3 RBC-AIP3C
RBC-AIP1 RBC-AIP2
RBC-RD3 RBC-RCS1 RBC-RCS2 RBC-AIP4
ALL COMMON HFC's ALL COMMON HFC's ALL COMMON HFC's VRF - RAV DI/SDI VRF - RAV DI/SDI VRF - RAV DI/SDI VRF - RAV DI/SDI VRF - RAV DI/SDI
Surface Mounted Recessed Recessed 30 30 40 40 40
Plastic Plastic Steel Metal Metal Metal Metal Plastic
White White Stainless Light grey RAL 7035 Light grey RAL 7035 Light grey RAL 7035 Light grey RAL 7035 White
Facia Plate Facia Plate Facia Plate - - - - Facia Plate
85 85 85 500 500 500 500 92
85 85 85 400 400 400 400 92
32 32 32 150 150 150 150 60
0.085 0.085 0.085 15 15 15 15 0.2
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
Yes Yes Yes Yes Yes Yes Yes Yes
85 (2300Hz ±300) 85 (2300Hz ±300) 85 (2300Hz ±300) 95 (3400Hz ±500 95 (3400Hz ±500 95 (3400Hz ±500 95 (3400Hz ±500 95 (3400Hz ±500)
Powered OFF Powered OFF Powered OFF Yes (Key Switch) Yes (Key Switch) & Remote Yes (Key Switch) Yes (Key Switch) Mute Button / Powered OFF
3-coloured LED 3-coloured LED 3-coloured LED
Live Live Live Live
YesHealthy Healthy Healthy Healthy
Alarm Alarm Alarm Alarm
L30 L30 L30 - - - - -
10 / Yes 10 / Yes 10 / Yes - - - - -
- - - 100 100 3 3 100
- - - 3 core 1.5 3 core 1.5 USB USB 3 core 1.5
- - - - 2 core 0.75 -
12-24 AC/DC 12-24 AC/DC 12-24 AC/DC 24 24 24 24 24 (via RP1)
Local indoor unit PCB Local indoor unit PCB Local indoor unit PCB 1 phase 230v 50Hz 1 phase 230v 50Hz Battery Back-up Battery Back-up -
40 / 100 40 / 100 40 / 100 - - - - -
- - - 6 6 - - (via RP1)
- - - inc. RBC-DI1 inc. RBC-DI1 - - -
- - - - - - - -
Yes Yes Yes - - - - -
Yes Yes Yes - - - - -
5 5 5 - - - - -
Yes Yes Yes - - - - -
150 150 150 - - - - -
- - - - - Half Day Included Full Day Included -

[45]
15 RBC-AIP1 Leak Detection Panel
The RBC-AIP1 Indicator panel is designed to work in conjunction with the RBC-RP1 (Repeater panel). When the Toshiba RBC-RD6
(Refrigerant Pump down panel) is activated the RBC-RP1 initiates the RBC-AIP1 panel to indicate a remote fault/alarm condition at a
supervisory level and provides an output to the Windows Interactive Intelligence software package.
Part Name
Qty
Shape
Usage
Control Panel 1 Panel with visual & audible
alarm
Mounting the Control Panel
Mount the control panel in a constantly occupied area. Remove the gland plate
prior to drilling. Ensure that correct type glands are fitted to maintain panel
integrity.
Connect the mains power, connect to the RBC-RP1 panel and the room indicators
as illustrated in schematic wiring diagram.
IMPORTANT
Items that must be observed
Ensure the RBC-AIP1 panel is located in an occupied area.
One RBC-RP1 Panel is required for each System / RBC-RD6-PE (DI).
Associated apparatus must be connected to the panel.

[19]

[20]
RBC-AIP1 - Control Circuit Wiring
Schematic