Toshiba RBC-TWP50E2 User manual

AIR CONDITIONER (SPLIT TYPE)
Installation manual
BRANCH PIPE KIT
Model name:
RBC-TWP30E2
RBC-TWP50E2
2
BRANCH PIPE KIT
Installation manual
ENGLISH
16
KIT DE TUYAU DE BRANCHEMENT
Manuel d’installation
FRANÇAIS
30
AUSRÜSTUNG FÜR DIE ZWEIGLEITUNG
Installations-handbuch
DEUTSCH
44
KIT DEI TUBI DI RACCORDO
Manuale di installazione
ITALIANO
R32 or R410A

– 2 –
CONTENTS
1 COMPONENT
2 REFRIGERANT PIPING
3 WIRING
4 PIPING HEAT INSULATION
5 TEST RUN
6 DELIVERY TO CUSTOMER
7 INDOOR UNIT OPERATION WHEN CONNECTED TO MULTIPLE UNITS
...........................................................................................................2
...........................................................................................3
.....................................................................................................................6
...................................................................................11
...............................................................................................................11
..................................................................................11
.........12
1 COMPONENT
The following parts are supplied as accessories of the branch pipes. Check them when opening the carton box.
1. This Installation Manual is for the branch pipe using for twin simultaneous or double twin simultaneous system.
2. Check the combination of indoor unit, outdoor unit and branch pipe again before installation.
3. Be sure to install the indoor unit in the same room and to observe the application of floor space.
Should the refrigerant leaks and exceeds the limit concentration, accumulation of highly concentrated refrigerant occurs,
cause an oxygen deficiency accident or a fire.
4. For installation for indoor or outdoor unit, please read the Installation Manual supplied with indoor or outdoor unit.
5. Make sure to observe the cautions for each contents.
Be sure to follow the wiring or the setting procedure in the Installation Manual.
As for "Precautions for safety", please read the Installation Manual for each outdoor unit, and be sure to observe
the description.
esUepahSytitnauQtraP
skrownoitallatsniroFtelkoobsihT1snoitcurtsnInoitallatsnI
Branch pipe
Gas side dnagnihcnarbepiptnaregi
rferroF1
collection
Liquid side 1
draob.C.PehtnonoitcennocroF2retlifesioN
NOTES
Be careful of the following items before installation

– 3 –
2REFRIGERANT PIPING
When planning a layout for Units A and B, comply with the following:
1. The lengths after branching (“a” and “b”) should be equal if feasible. Install Units A and B 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 and B on the same level. If Units A and B 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 in the same room. Units A and B cannot be operated independently each other.
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.
In parentheses ( ) are wall thickness
Tolerance of pipe length and pipe head
CAUTION
Piping materials and sizes
TA061,TA041TA011)-VAR(ledoM
Pipe side
Gas side )0.1(9.51ØgnipipniaM
Branch piping Ø12.7 (0.8) Ø15.9 (1.0)
Liquid side )8.0(5.9ØgnipipniaM
Branch piping Ø6.4 (0.8) Ø9.5 (0.8)
a
b
LH
Δh
Ensure that the shortest pipe length complies with the following:
L+b≥5m
a≥b
Model
(RAV-)
Pipe Length (One Direction) Height Difference
Remarks
Full length
L + a or
L+b
Branch
piping
a, b
Difference
of branch
piping
length
b–a,or
a–b
Outdoor Unit -
Indoor Unit
HBetween
Indoor
Units
Δ h
Outdoor
Unit
Installed
Above
Indoor
Unit
Outdoor
Unit
Installed
Below
Indoor
Unit
110 AT
140 AT
160 AT
Below
50 m
(actual
length)
Below
15 m
(actual
length)
Below
10 m
Below
30 m
Below
30 m
Below
0.5 m
Less than
10 bends
CAUTION
80 AT
Indoor unit B Indoor unit A
Branch pipe
Outdoor unit
T,A08
EN

– 4 –
Now the refrigerant pipe is installed using branch pipes supplied as accessories.
• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.
• Fix the branch pipes 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.
For the complete information, read the installation instructions for outdoor units of air conditioner.
Branch pipe
Air Purging
Horizontal
Inclination
Horizontal
Inclination
500 mm or
more
Incorrect
Incorrect

– 5 –
<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.
A: Additional refrigerant amount per meter of actual main piping length (kg)
B: Additional refrigerant amount per meter of actual branch piping length (kg)
L: Actual length of main piping (m)
a, b: Actual length of branch piping (m)
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.
• Use a leak detector manufactured specially for the HFC refrigerant (R32, R410A, R134a, etc.) when testing R32, R410A.
The sensitivity of leak detectors for previous HCFC refrigerants (such as R22) lowers to about 1/40 when used with
HFC refrigerants and these detectors cannot be used.
Additional Refrigerant Amount
Additional refrigerant amount (kg) = Main piping additional refrigerant
amount (kg) + Branch piping additional
refrigerant amount (kg)
= A × (L – 28) + B × (a + b – 4)
Standard piping length
R410A
Model
Additional refrigerant
amount per Meter (kg/m)
Main piping Branch
piping AB
140 AT
160 AT 28m 2m 0.040 0.040
CAUTION
Gas Leak Test
a
b
LH
Δh
Indoor unit B Indoor unit A
Branch pipe
Outdoor unit
Main
piping
Branch
piping
Branch
piping
80 AT
110 AT 28m 2m 0.040 0.020
Standard piping length
R32
Model
Additional refrigerant
amount per Meter (kg/m)
Main piping Branch
piping AB
140 AT 28m
80 AT
110 AT 28m
2m
2m
0.035
0.035
0.035
0.020

– 6 –
3WIRING
1. Using the specified cables, ensure to connect the wires, and fix wires securely so that the external tension to the
cables do not affect the connecting part of the terminals.
Incomplete connection or fixation may cause a fire, etc.
Be certain to install wires by connecting them to terminals of the same numbers according to the following wiring diagram.
2. Be sure to connect earth wire. (Grounding work)
Do not connect the earths wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone.
Incomplete grounding causes an electrical shock.
3. For electric work, strictly follow the Local Regulation in each country, Indoor, outdoor, and this Installation Manual,
and use an exclusive circuit.
Capacity shortage of power circuit or incomplete installation may cause an electrical shock or a fire.
This work is unnecessary for concealed duct type, under ceiling type and 4-way air discharge cassette type (0 to 3
series).
This work is necessary for each indoor unit.
1. Disconnect the read wire between remote controller terminal and CN41 (RC) connector on the P.C.board.
2. Connect the Noise Filter between remote controller terminal and CN41 (RC) connector on the P.C.board.
3. Bind this wire and main terminal wire by bind band.
1. Install wires from the outdoor unit to the main unit as in usual wiring.
(Wires (1), (2), (3) and ground wire.)
2. Install wires (1), (2) and ground wire only when installing connection wires from the master unit to the sub unit.
1. Installing connection wires from the master unit to the sub unit.
2. Install jumper wires between the main unit and sub unit. The jumper wires of the remote controller have no polarities.
The remote controller circuits are low voltage circuits. These circuits must not be made to directly contact internal and
external wires or contained in the same conduit tubes that house internal and external wires.
(Otherwise malfunction will be caused by noise)
Indoor Unit P.C electrical parts
Internal And External Connection Wiring
Remote Controller wiring
CN41 connecter
P.C board of Indoor Unit
Bind band (Local Producement)
Change this wire to Noise filter (Accessory part)
Remote controller terminal

– 7 –
Specification of Wires Between Units and Numbers of Wires.
Procure necessary parts and perform all connection work locally.
When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power
was on. However, it is not a trouble.
Automatic address
While automatic addressing, the operation can not be performed on the remote controller.
For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.
When power will be turned on after finish of automatic addressing;
It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.
Wiring Diagram
Wiring Specification
Outdoor unit - indoor unit
(main unit)
)eriwdnuorgedulcnI(4seriwfo.oN
Wire diameter H07RN-F or 245IEC66 1.5 mm
2
or more
Indoor unit
(main unit)
- indoor unit
(sub unit)
2seriwfo.oN
Wire diameter H07RN-F or 245IEC66 1.5 mm
2
or more
Remote controller wiring 2seriwfo.oN
Wire diameter Between 0.5 mm
2
and 2 mm
2
(up to 200 m)
mm5.166CEI542roF-NR70HtinubusroodnifoeriwgnidnuorG
2
or more
NOTES
123 123
BABA
LN
123
Remote Controller
Main Indoor unit
Outdoor Unit
Sub Indoor
Unit
Power supply

– 8 –
When installing the RAV-SM1603AT-E
Specification of Wires Between Units and Numbers of Wires.
Procure necessary parts and perform all connection work locally.
When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power
was on. However, it is not a trouble.
Automatic address
While automatic addressing, the operation can not be performed on the remote controller.
For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.
When power will be turned on after finish of automatic addressing;
It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.
Wiring Diagram
Wiring Specification
Outdoor unit - indoor unit
(main unit)
)eriwdnuorgedulcnI(4seriwfo.oN
Wire diameter H07RN-F or 245IEC66 1.5 mm
2
or more
Indoor unit
(main unit)
- indoor unit
(sub unit)
2seriwfo.oN
Wire diameter H07RN-F or 245IEC66 1.5 mm
2
or more
Remote controller wiring )eriwdleihS(2seriwfo.oN
Wire diameter Between 0.5 mm
2
and 2 mm
2
(up to 200 m)
mm5.166CEI542roF-NR70HtinubusroodnifoeriwgnidnuorG
2
or more
NOTES
123 123
BABA
LN
123
Remote Controller
Main Indoor unit
Outdoor Unit
Sub Indoor
Unit
Power supply

– 9 –
• For how to install the indoor unit, refer to the Installation Manual supplied with the indoor unit.
* Clamp the indoor/outdoor connecting wire and the earth wire together with the ferrite core with the supplied banding band.
Stripping length power cord and connecting wire
WARNING
For simultaneous twin systems, perform the following to conform to EMC standards.
1. Be sure to use shield wire for remote controller wiring.
2. Connect earth wire independently to each indoor unit.
3. Attach the ferrite core (white) supplied with the outdoor unit to indoor/outdoor connecting wires.
• Pass indoor/outdoor connecting wires and through the supplied ferrite core and wind them making a single turn,
and then connect them to the terminals of the outdoor unit. Connect the indoor/outdoor connecting wire and the earth
wire directly to the outdoor unit terminals.
4. Attach the clamp filter (gray) supplied with the outdoor unit to the outdoor fan motor lead wire.
• Attach the supplied clamp filter securely to the fan motor lead wire (lower) in the electric parts box of the outdoor unit.
1. Attaching the ferrite core
LN
123
123
To indoor unit
terminal block
Earth screw
Banding band
Earth screw
Power supply
terminal block
Connecting wire Pipe valve fixing plate Power supply wire
(mm)
10
170
10
110
LN
123
LN
10
50
10
40
160 10
Earth wire
Connecting wire Power supply wire
Earth wire

– 10 –
Attach the clamp filter supplied with the outdoor unit to the lower outdoor fan motor lead wire.
• Make sure that the claw of the clamp filter is securely locked.
• Pass the banding band supplied with the outdoor unit through the upper hole of the clamp filter to clamp it together with the
fan motor lead wire.
• The fan motor lead wires are connected to the connectors CN301 and CN300 on the P.C. board of the outdoor unit.
2. Attaching the clamp filter
CN301 CN300
Fan motor lead wire
(Lower side)
Clamp filter
Banding band