Toshiba TCB-PCNT30TLE2 APPLICATION CONTROL MANUAL
INSTALLATION MANUAL
Use for Indoor Unit Only
Digital Inverter Air Conditioner
“1 : 1 Model” Connection Interface
[For Installation Professionals]
• Before installation work, please read this manual thoroughly and install the products correctly.
CAUTIONS for SAFETY
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 .
• Perform installation work surely based on this Installation Manual.
Incomplete installation causes an electric shock or a fire.
• Ask an authorized dealer or qualified installation professional to reinstall adapters.
Incomplete installation causes an electric shock or a fire.
• For an electric work, this Installation Manual shall be referred and exclusive circuit shall be
necessarily used. The used voltage shall be also match with the rated voltage of the product.
If there is capacity shortage of electric circuit or installation work is poor, an electric shock or a fire may be
caused.
MODEL : TCB-PCNT30TLE2
CAUTION
• Using the specified wires, surely connect wires so that external force of wire is not applied to connecting part
of the terminals; otherwise disconnection, heating or fire will generate.
• For wiring work, use wires with correct current capacity; otherwise leakage, heating or fire will generate.
• Do not apply an excessiv e force on the board body, otherwise bending, separ ation, or disconnection gener ates
resulted in heating or fire.
• After installation work, execute a test run to confirm there is no trouble.
And also ask the customers to keep this Manual by themselves.
n Components
Name
P.C. board
U3, U4 terminal block
Relay wire (A)
Relay wire (B)
Installation Manual
Q’ty
1
1 : 1 model connection interface board
1
2P terminal block for relay (U3, U4)
For connection of “1 : 1 Model” Connection Interface board with U3, U4 relay terminal block
1
(Blue connector)
For connection of “1 : 1 Model” Connection Interface board with indoor control board
1
(Red connector)
1
This manual
Application
Spacer (A)
Spacer (B)
Screws to fix terminal block
Bundling band
Terminal nameplate
For fixing “1 : 1 Model” Connection Interface board
3
(Used when installing P.C. board on sheet metal of the electric parts box of indoor unit)
1
For fixing “1 : 1 Model” Connection Interface board (Required according to shape of indoor unit)
2
For fixing relay terminal block (M4 × 14l)
3
Used to process wires
1
To be adhered near the relay terminal block
1
Before Installation
This adapter corresponds to the digital inverter air conditioner.
Do not use or connect this adapter for other type of air conditioner than the above because the indoor P.C. boards of
other air conditioners differ from one of the digital inverter air conditioner .
Wiring Connection
1. Wiring connection
Remarks
Point 1) When controlling the digital in verter air conditioner collectively, “1 : 1 Model” Connection Interface
(This option) is required.
Point 2) In group control or twin system, this adapter must be connected to Header unit of the indoor unit.
(Connection to follower unit is unavailable.)
Point 3) Connect the central control devices to wires of the central control system.
Point 4) When controlling the digital inverter air conditioner collectively, turn on Bit 1 of SW01 in the line with the
least line address No. (OFF has been set up at shipment from the factory.)
For the digital inverter air conditioner, re-setup of the address from the wired remote
controller is required after automatic addressing.
Central control
device
U1U3U2
U4
Indoor unit
1 : 1 Model
Connection Interface
(option)
Outdoor
unit
Remarks
point 3
U3U4
Remarks
point 1
Central control
device
U1U3U2
U4
Refrigerant
line 1
1
2 3
1 2 3
A B
Remote
controller
Central control device: Max. 10 units
U3U4
Remarks
point 2
Refrigerant
line 2
1 2 3
1 2 3
A B
Remote
controller
Header Header
Refrigerant
line 3
Remote controller wiring
1 2 3
Follower
1 2 3
A B
Refrigerant
line 4
1 2 3
1 2 3
A B
Remote
controller
Inter-unit wire between indoor
and outdoor units (220-240V~, serial,earth)
Wiring of central control system
* Wiring for No. 1 and 2 only
Follower
U3U4
Remarks
point 2
1 2 3
A B
Group control (Max. 8 units)
Max. 64 indoor units of all the refrigerant lines can be connected.
[When mixed with VRF type (Link wiring), No. of indoor units of VRF type is also included.]
* However , group, twin follower units of the digital inverter air conditioner are not included in No. of units.
Twin system
VRF : Variable Refrigerant Flow
2
2. Wire Specifications
No. of wires
2
Up to 1000m, braided wire 1.25mm
Up to 2000m, braided wire 2.0mm
Size
Specifications
2
2-core shield wire
2
• Wire is 2-core and non-polarity.
• The length is same to wire length of the central control system.
In case of system mixed with VRF type, the length includes all length of control wiring between indoor unit and
outdoor units at VRFside .
• To prevent noise defect, use 2-core shield wire.
• Connect shield wires with closed-terminal connection and apply open process (insulation process) to the last
termination. F or g rounding (earth), perform grounding with one point at indoor unit side. (During central control for
digital inverter air conditioner only)
Remarks
Point 1) Closed terminal connection of shield wire (Connection of connecting parts of each indoor unit)
Point 2) Apply open process (insulation process) to the last termination.
Point 3) For grounding (earth), perform grounding with one point at indoor unit side.
Central control
device
U1U2
Remarks
point 2
Outdoor unit Outdoor unit Outdoor unit Outdoor unit
Indoor
unit
U3U4
1 2 3
1 2 3
A B
Remote
controller
Remarks
point 1
U3U4
1 2 3
Header Header
1 2 3
A B
Remote
controller
(Group control) (Twin system)
3. Wiring Diagram with Indoor Control P.C. Board
For details, refer to installation procedure for each model.
T erminal bloc k
for connection
of remote
controller
1 2
1 2 3
Black Black
A B
Remote
controller
Indoor control P.C. board
3
“1 : 1 Model”
Connection
Interface
board
CN40 (Blue)
1 2
1 2
U3 U4
T erminal bloc k to centr al control de vice
CN050 (White)CN041 (Blue)
1 2
1 2 34455
1 1
2 2
3 3
4 4
5 5
CN51 (Red)
3
: “1 : 1 Model”
1 2 3
Wiring of central
control system
Follower Follower
1 2 3
A B
1 2 3
1 2 3
A B
Remote
controller
Remarks
point 3
U3U4
Connection Interface
(Option)
1 2 3
A B
Earth
• Parts encircled with chain line are accessories
attached to this product.
• ???? indicates control P.C. board, and indi-
cates terminal block (Characters inside of mark
indicate terminal number.)
• There is no polarity for wire connection to terminal
blocks U3 and U4.
(NOTE)
Do not apply voltage to terminals U3 and U4.
If applying voltage to U3 or U4 terminal by mistake,
fusing occurs to protect terminals.
After checking wires, exchange connection of connect-
ing connector on “1 : 1 Model” Connection Interface
board from CN40 (Blue) to the spare CN44 (Brown).
3
Setup of P.C. Board Switch
When the units controlled collectively are all digital inverter air conditioners, it is required to set up the terminator
resistor. (Collective control for units without VRF type air conditioner)
• Using SW01, set up the terminator resistor.
• Set up the terminator resistor to only adapter connected to the indoor unit in the line with the least line
address No.
Central control
device
U1U3U2
U4
Outdoor
unit
Indoor unit
“1 : 1 Model”
Connection Interface
(option)
U3U4
Central control
device
U1U3U2
U4
Refrigerant
line 1
1
1 2 3
Remote
controller
Central control device: Max. 10 units
Refrigerant
line 2
2 3
U3U4
A B
1 2 3
Header Header
1 2 3
A B
Remote
controller
Group control (Max. 8 units)
Refrigerant
Remote
controller
wiring
line 3
1 2 3
Follower
1 2 3
A B
Refrigerant
line 4
1 2 3
1 2 3
A B
Remote
controller
Twin system
Wiring between indoor
and outdoor units
Follower
U3U4
Wiring of central control system
* Wiring for No . 1 and 2 only
1 2 3
A B
Line address
SW01 bit 1
SW01 bit 2
Remarks
1
ON
OFF
Turn on
SW01 bit 1.
OFF
OFF
As status at
shipment
from factory
(Reference) Contents of switch setup
Bit 1
OFF
ON
OFF
ON
SW01
Bit 2
OFF
OFF
ON
ON
Terminator
resistor
None
100
75
43
2
4
OFF
OFF
(OFF when shipped from factory)
(OFF when shipped from factory)
As status at
shipment
from factory
Remarks
Mixed with VRF at shipment from factory (Link wiring)
Central control by digital inverter air conditioners
Spare
Spare
4
Installation Procedure
• For installation of “1 : 1 Model” Connection Interface board and removal of relay wire, be sure to wait for a while
(approx. 1 minute) after turning off the power supplies of the air conditioner and the collective control devices. If not
doing so, “1 : 1 Model” Connection Interface board may be damaged.
n In case of 4-way Air Discharge Cassette type
(RAV-SM
∗∗∗∗∗∗
UT-E, RAV-SP
∗∗∗
∗∗∗∗∗∗
∗∗∗∗∗∗
UT-E, RAV-SM
∗∗∗
∗∗∗∗∗∗
∗∗∗∗∗∗
UT-K, RAV-SM
∗∗∗
∗∗∗∗∗∗
∗∗∗∗∗∗
∗∗∗
∗∗∗∗∗∗
UT-4C)
No.
1
Using board installing spacer (A), install “1 : 1 Model” Connection Interface board to the position of electric parts box of
the indoor unit. (See the figure below.)
2
Using terminal block fixing screws, install U3, U4 terminal block to the position of electric parts box of the indoor unit.
(See the figure below.)
• When tightening the screws, be sure not to damage wires.
• Adhere the attached nameplate near the relay terminal block.
3
Connect the relay wire (A) from U3, U4 terminal block to CN40 (Blue) of “1 : 1 Model” Connection Interface board.
Connect the relay wire (B) from CN50 (White) on the indoor P.C. board to CN51 (Red) on “1 : 1 Model” Connection
Interface board.
1.1 model
connection
interface
P.C. board
Spacer (A)
CN51
(Red)
Relay wire (A)
U3, U4 terminal block
Procedure
Details
CN40
(Blue)
Spacer (A)
CN50
(White)
Relay wire (B)
Indoor P.C. board
* Relay wire (A)
Connect U3, U4 terminal block with “1 : 1 Model” Connection Interface CN40 (Blue). There is no polarity for wire
connection.
• Relay wire (B)
Connect CN50 (White) on indoor control P.C. board with CN51 (Red) on “1 : 1 Model” Connection Interface board.
• When installing “1 : 1 Model” Connection Interface board to electric parts box, insert three board installing spacers (A)
into holes of P.C. board.
Spacer (A)
CAUTION
After connection of the relay wires (A) and (B), bind them with banding band so that wires are not caught in. In this
time, be sure not to bind the relay wires (A) and (B) together with the power supply lines such as power cable, earth
wire, etc.; otherwise a trouble may be caused.
5
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