Toshiba RBC-TRP100E User manual

AIR CONDITIONER (SPLIT TYPE)
Installation Manual
Installation Manual
Air conditoner (Split type) 1
English
Manuel d'installation
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Manual de instalación
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Manual de Instalação
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Branch kit 1:3
Model name:
RBC-TRP100E
+01GB00COV.fm Page 1 Tuesday, June 10, 2008 6:36 PM

Branch kit 1:3 Installation Manual
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Contents
1 PRECAUTIONS FOR SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 COMPONENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 PIPING HEAT INSULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6 TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7 DELIVERY TO CUSTOMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the indoor unit.
• For installation of the outdoor unit, follow the Installation Manual attached to the
outdoor unit.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead
of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.
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EN
1PRECAUTIONS FOR SAFETY
The three indoor units of TOSHIBA simultaneous triple packaged air conditioning
system are the same units. Set and install the main and sub units taking the
installation site into consideration. (Be certain to use the new refrigerant R410A in the
indoor units.) The indoor unit connected to the remote controller will be the main unit.
• Ensure that all Local, National and International regulations are satisfied.
• Read indoor, outdoor installation manual and this manual carefully before Installation.
• The precautions described below include the important items regarding safety. Observe
them without fail.
• After the installation work, perform a trial operation to check for any problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.
WARNING
•Ask an authorized dealer or qualified installation professional to install/maintain
the air conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
•Turn off the main power supply switch or breaker 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 in a wrong way, electric parts may be damaged.
•When moving the air conditioner for the installation into another place, be very
careful not to enter any gaseous matter other than the specified refrigerant 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 resultantly causes pipe burst and injuries on
persons.
•Do not modify this unit by removing any of the safety guards or by by-passing any
of the safety interlock switches.
•Exposure of unit to water or other moisture before installation may cause a short-
circuit of electrical parts.
Do not store it in a wet basement or expose to rain or water.
•After unpacking the units, examine them carefully if there are possible damage.
•Do not install in a place that might increase the vibration of the unit.
•To avoid personal injury (with sharp edges), be careful when handling parts.
•Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
•When the air conditioner is installed in a small room, provide appropriate
measures to ensure that the concentration of refrigerant leakage occur in the room
does not exceed the critical level.
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•Install the air conditioner securely in a location where the base can sustain the
weight adequately.
•Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling
unit.
•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 generate.
•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 might generate.
•Electrical work must be performed by a qualified electrician in accordance with the
Installation Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
•Use the specified cables for wiring connect the terminals securely fix. To prevent
external forces applied to the terminals from affecting the terminals.
•Conform to the regulations of the local electric company when wiring the power
supply.
Inappropriate grounding may cause electric shock.
•Do not install the air conditioner in a location subject to a risk of exposure to a
combustible gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
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EN
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. Moreover, do not use the existing piping because there
are problems with pressure-resistance force and impurity in it.
• The three indoor units of TOSHIBA simultaneous triple packaged air conditioning system
are the same units.
• Set and install the main and sub units taking the installation site into consideration.
(Be certain to use the new refrigerant R410A in the indoor units.)
The indoor unit connected to the remote controller will be the main unit.
Wiring
•TO DISCONNECT THE APPLIANCE FROM MAIN POWER SUPPLY.
• This appliance must be connected to the main supply by means of a switch with a contact
separation of at least 3mm.
• The remote controller cannot be connected to all the three indoor units (main and sub
units).
Connect it only to the indoor unit that will become the main indoor unit (Unit A).
Connecting the remote controller to the sub indoor unit will cause malfunction.
Retrigerant Piping (Branch piping system is used for refrigerant piping)
• Compared with R22, pressure of R410A is about 1.6 times. Unless the piping is installed
correctly, gas leak may be caused during operation such as pressure boosting. Conduct
a leak test of the pipe connecting parts correctly.
• In case the actual length of the piping exceeds the standard piping length, accurately add
the refrigerant referring to Additional Refrigerant Amount.
• Heat insulation materials for the branch pipes are not supplied as accessories. Provide
heat insulation correctly using fitting covers or other materials sold on the market. For
further information, read Refrigerant Piping and Piping heat Instruction on this manual.
Improper heart insulation work will result in a failure and a claim.
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2COMPONENT
The following parts are supplied as accessories of the branch pipes. Check them when
opening the carton box.
Distributor Part name Quantity
Liquid side Gas side Different-size joint
Liquid pipe Ø12.7 → Ø9.5 1
Ø9.5 → Ø6.4 3
Gas pipe Ø25.4 → Ø15.9 1
Ø15.9 → Ø12.7 3
Branch pipe heat insulator 2
Installation Manual 1
9.5
9.5
9.5
12.7
QTY:1
15.9
15.9
15.9
25.4
QTY:1
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EN
3REFRIGERANT PIPING
Tolerance of pipe length and Height difference
CAUTION
When planning a layout for Units A, B and C, comply with the following:
1. The lengths after branching (“a” and “b”, “b” and “c”, “a” and “c”) should be equal if
feasible. Install Units A, B and C so that the difference of the branching lengths becomes
less than 10m if the lengths cannot be equal due to the branch pipe position.
2. Install Units A, B and C on the same level. If Units A, B and C cannot be installed on the
same level, the difference in level should be limited to 0.5 m or less.
3. Be certain to install Units A and B and C in the same room. Units A, B and C cannot be
operated independently each other.
Refrigerant
pipe
specifications
Pipe
length
(one way)
Total length (L + a, L + b, L + c) 50 m
Branch pipe length (a, b, c) 15 m
Maximum difference between indoor units
(|a - b|, |b - c|, |c - a|) 10 m
Height
difference
Between indoor units (Δh) 0.5 m
Between
indoor unit and
outdoor unit
When outdoor unit is higher (H) 30 m
When outdoor unit is lower (H) 30 m
Number of bent portions 10 or less
L
a
b
c
H
Indoor unit A
Branch pipe
Indoor unit B
Indoor unit C
Branch pipe
Branch pipe
Distributor
Main pipe
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Piping materials and sizes
Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or
less in the amount of oil stuck on inner walls of pipe and 0.8 mm in pipe wall thickness for
diameters 6.4, 9.5 and 12.7 mm and 1.0 mm, for diameter 15.9 mm. Never use pipes of thin
wall thickness such as 0.7 mm.
<Between outdoor unit and distributor>
* ( ): Pipe wall thickness
<Between distributor and indoor unit>
* ( ): Pipe wall thickness
Outdoor unit
Main pipe Gas side Ø15.9 (1.0)
Liquid side Ø9.5 (0.8)
Indoor unit SM56 type
Branch pipe Gas side Ø12.7 (0.8)
Liquid side Ø6.4 (0.8)
[Unit: mm]
[Unit: mm]
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EN
Distributor
Now the refrigerant pipe is installed using distributor supplied as accessories.
• Bend and adjust the refrigerant piping so that the distributor and pipe after branching
become horizontal.
• Fix the distributor onto a wall in a ceiling or onto a column.
• Provide a straight pipe longer than 500 mm in length as the main piping of the branches.
<How to install distributor>
<Restrictions in length of the straight area of the branch pipe (main pipe
side)>
Provide a straight area of 500 mm or more on the main pipe side of the branch pipe (for both
gas pipe and liquid pipe sides).
Air Purging
For the complete information, read the installation manual for outdoor units of air conditioner.
Branch pipes are horizontal
and collective pipes are
vertical
Branch pipe
Collective pipe
<Gas pipe side>
Branch pipes and collective
pipes are horizontal
Branch pipes are horizontal
and collective pipes are
vertical
Branch pipes and collective
pipes are horizontal
Branch pipe
Collective pipe
<Liquid pipe side>
500 mm
or more 500 mm or more
Tilt
Be sure to install the pipes
horizontally after branching.
NO GOOD
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Additional Refrigerant Amount
<Formula for Calculating Additional Refrigerant Amount>
Do not remove the refrigerant even if the additional refrigerant amount becomes minus result
as a result of calculations by the following formula and operate the air conditioner as it is.
α: Additional refrigerant amount per meter of actual main piping length (kg)
γ: Additional refrigerant amount per meter of actual branch piping length (kg)
L: Actual length of main piping (m)
a, b, c: Actual length of branch piping (m)
CAUTION
1. Be certain to write the additional refrigerant amount, pipe length (actual length), head
and other specification on the nameplate put on the outdoor unit for recording.
2. Seal the correct amount of additional refrigerant in the system.
Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg) +
Branch piping additional refrigerant amount (kg)
={α× (L – 28)} + {γ× (a + b + c – 6)}
Connecting pipe diameter Additional refrigerant amount per
Meter (kg/m)
Labcαβγ
DI 6HP φ9.5 φ6.4 φ6.4 φ6.4 0.04 - 0.02
L
a
b
c
H
Indoor unit A
Branch pipe
Indoor unit B
Indoor unit C
Branch pipe
Branch pipe
Distributor
Main pipe
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