TOSHIBA TCB-SC640U Air Conditioner Instruction Manual

TOSHIBA TCB-SC640U Air Conditioner

Product Information

• Product Name: Central Remote Controller Model
• Name: TCB-SC640U-E, TCB-SC640U-TR, TCB-SC640U-ME
• Compatibility: TU2C-LINK / TCC-LINK compatible

Intended Use: Commercial use
Manuals: Multilingual installation manuals and owner’s manual available at https://www.toshiba-carrier.co.jp/global/manual/tcb-sc640u.htm

Product Specifications

• Power supply: Not specified
• Consumed current: Not specified
• Number of connected units: Not specified
• External contact inputs: Not specified
• External contact outputs: Not specified
• Operating temperature/humidity range: Not specified

Product Usage Instructions

Safety Precautions:

• Follow all safety precautions mentioned in the manual.
• Pay attention to the warning and caution symbols provided in the manual.
  WARNING: Content marked with this symbol may result in death or serious injury if mishandled.
  CAUTION: Content marked with this symbol may result in minor injury or damage to property if mishandled.

Installation:

• Power, Signal, and Earth Line Connections:
  • Connect the power supply wire and the ground wire according to the instructions provided.
  • Connect the signal wires as instructed.
• How to Install:
  Follow the installation instructions provided in the manual.

Central Remote Controller Test Run:
Perform a test run of the central remote controller according to the instructions provided.

Servicing Menu Settings:
Access the servicing menu settings as mentioned in the manual for further configuration.

Note: For detailed instructions and specific details regarding power supply, consumed current, number of connected units, external contact inputs/outputs, and operating temperature/humidity range, refer to the product manual available at the provided link.

Safety Precautions

• Read these “Safety Precautions” carefully before installation.
• The precautions described below include important items regarding safety. Observe them without fail. Understand the following details (indications and symbols) before reading the body text, and follow the instructions.
• After the installation work has been completed, perform a trial operation to check for any problems. Explain how to use and maintain the unit to the customer.
• Ask customer to keep this Manual at accessible place for future reference.

Display Description

WARNING: Indicates “Content that is expected to result in death or serious injury (*1) to the user in the case of incorrect handling”.

CAUTION: Indicates “Content that is expected to result in minor injury (2) to the user or damage to property (3) in the case of incorrect handling”.

Symbol Description

• Indicates prohibited actions. Specifically prohibited contents are indicated with a picture and/or text in or near the symbol.
• Indicates instructions which must be followed. The actual contents of the instructions are indicated with a picture and/or text in or near the symbol.

WARNING

Prohibited| Do not modify the unit.

A fire or an electric shock may occur.

---|---
Compulsory| Always connect to ground
Improper grounding may result in an electric shock.Before connecting the power, carry out Class D grounding according to the “Engineering Standard for Electric Work” and the “Internal Wiring Regulations”.

• Ask an authorized dealer or qualified installation professional to install or reinstall this Inappropriate installation may result in electric shock or fire.
• Electrical work must be performed by a qualified electrician in accordance with this installation
  • The work must satisfy all local, national and international regulations. Inappropriate work may result in electric shock or fire.
• Be sure to turn off all main power supply switches before starting any electrical work.
  • Failure to do so may result in electric shock.

CAUTION: Do not install in the following locations

Prohibited

• Locations where combustible gas may leak
• Locations with high humidity or water
• Dusty locations
• Locations in direct sunlight and locations subject to high temperatures
• Locations within 1 m from televisions or radios
• Outdoors, under awnings, or other locations exposed to rain and dew
• Locations exposed to outside air containing corrosive gases or salinity
• Locations with frequent vibrations

Compulsory

• In installation work, use wiring with the correct ampacity.
  • Failure to do so may result in excessive heat or fire.
• Use specified cables and connect them securely, and do not subject connecting terminals to external force. Doing so may result in broken cables, excessive heat or fire.
• Always install a circuit breaker on the primary side of the power supply.
• When attaching to a metal lath, wire lath or wooden structure with metal boards, attach it to the control panel, etc. without attaching it to the wall.

Specifications

condensation)
Dimensions| H120×W120×D20 (+50.6) mm

(Embedded dimensions shown in parenthesis)

Mass| 550 g

Outline Drawing

Component Names

output
Terminal block for external contact input| Connect the external contact input
Uh / U3U4 terminal block| Connect the central control wiring

Before Installation
Confirm that all the parts listed below are included in the package.

Included items

Wiring specifications
Use the following wiring material to connect signal wires and power supply wires. (Locally procured)

(P.8~P.11).
2| For power supply| 0.75 mm2, up to 50 m
3| For digital I/O| 2-core cable

0.3 mm2, up to 100 m

Installation

Power, Signal, and Earth Line Connections
Connect the power, signal and earth lines to the specified terminal blocks.

REQUIREMENT
Attach round crimp terminals to all TU2C-LINK / TCC-LINK wiring and tighten the screws securely. After tightening, check that the wiring cannot come out

Connect the power supply wire and the ground wire

1. Remove 3 cover fixing screws pointed to by arrows and open the cover
2. Insert cross notches in the rubber bushing in order to pass the power supply cable
3. Pass the power supply cable through the rubber bushing and the clamp, and connect the power supply wire and the ground wire to the specified terminal block
4. Close the cover and secure with 3 cover fixing screws

Connect the signal wires

Connect the TU2C-LINK / TCC-LINK signal wire (Uh / U3U4) to the terminal block

About Stripping Length

Termination resistance setting
TU2C-LINK / TCC-LINK termination resistance setting

< For TCC-LINK>
Leave just 1 line of the termination resistance in the interface board of the outdoor unit (centre unit) ON, and turn all the others OFF. (Refer to the wiring diagram attached to the outdoor unit for the position of SW.)

< For TU2C-LINK>
For the central control wiring (Uh line), set the termination resistance that is farthest away on the wiring between this central controller and the other unit (VRF, light commercial, air to air heat exchanger, general purpose control interface, air to water heat pump) to ON.

Refer to the manual of each model for the termination resistance setting method.

Shield grounding process

Central control wiring shielded wire
When using the central remote controller with one unit, open the shielded wire of the central control wiring and perform insulation processing. When using the central remote controller with multiple units, connect the shield of the central control wiring to the closed end and open the shield at the final end of the central remote controller to perform insulation processing. Perform the central control wiring shield grounding on the air conditioner side.

REQUIREMENT

• Be sure to install a circuit breaker or all-pole isolating switch (with a contact breaking distance of at least 3 mm) on the primary side of the power supply.
• Fasten the screws to the terminal block with torque of 0.5 N•m.

Design of Control Wiring

Communication method and model name
The TU2C-LINK model (U series) can be used together with previous models (other than U series). For details of the model and communication method, see the following table.

When the connected outdoor unit is Super Multi u series (U series) Follow the wiring specifications in the table below even when there is a mix of U series and non-U series in the connected indoor units or remote controllers.

Wiring specifications

Central control wiring (Uh line)
Wire diameter| 1.0 to 1.5 mm2 (up to 1000 m)
2.0 mm2 (up to 2000 m)
Wire type| 2-core, non-polar
Wire types that can be used| Shielded wire

REQUIREMENT
When wiring the control wiring between indoor and outdoor units (Uv line)/control wiring between outdoor units (Uc line) and the central control wiring (Uh line), use the same wire type and diameter for each line.  Using a mixture of different wire types and diameters may cause a communication error.

System diagram

The wiring specifications in the system diagram above are the same even when the indoor unit or remote controller are other than the U series.

When the connected outdoor units are other than Super Multi u series (U series)

Wiring specifications

Item

| Communication line
---|---
Control wiring between indoor and outdoor units and central control wiring
Wire diameter| 1.25 mm2 (up to 1000 m)
2.0 mm2 (up to 2000 m)
Wire type| 2-core, non-polar
Wire types that can be used| Shielded wire

REQUIREMENT
When wiring the control wiring between indoor and outdoor units/central control wiring and the control wiring between outdoor units, use the same wire type and diameter for each line.Using a mixture of different wire types and diameters may cause a communication error.

System diagram

When connecting to a previous model light commercial, air to air heat exchanger, air to water heat pump, or general purpose equipment control interface Follow the wiring specifications in the table below even when there is a mix of U series and non-U series in the connected indoor units or remote controllers.

Wiring specifications

Central control wiring (Uh line)
Wire diameter| 1.25 mm2 (up to 1000 m)
2.0 mm2 (up to 2000 m)
Wire type| 2-core, non-polar
Wire types that can be used| Shielded wire

REQUIREMENT
When wiring the control wiring between indoor and outdoor units (Uv line)/control wiring between outdoor units (Uc line) and the central control wiring (Uh line), use the same wire type and diameter for each line. Using a mixture of different wire types and diameters may cause a communication error.

System diagram

Connection to External Equipment
Connect to external equipment (digital I/O signal wire)

Functions can be assigned to inputs 1 to 3 using “Changing the External Input Function (External Input Settings) (P.27)”.

Wire the cables so that the user does not touch the power supply directly. On the equipment side, use a basically insulated power circuit and place it in a location that where the user cannot touch it.

NOTE

• Do not connect the device directly to the primary side of the power supply. Be sure to install a circuit breaker or all-pole isolating switch (with a contact breaking distance of at least 3 mm) on the primary side of the power supply.
• Fasten the screws to the terminal with torque of 0.5 N•m.

When using a relay for the circuit on the equipment side of the state output

IMPORTANT: Be sure to connect freewheeling diodes to both ends of the relay coil. (A relay with a built-in diode is recommended.)

How to Install

CAUTION

• Do not wire communication lines (control wiring between indoor and outdoor units, central control wiring) or input/output wiring next to power supply wiring, etc., or house them in the same metal pipe. Doing so may result in failure.
• Install the central remote controller away from noise sources.

When installing to control board (control panel) or to a wall The thickness of the board or wall must be 1.6 mm to 10 mm.

• Prepare the holes for installation beforehand, following the the diagram below (Panel cut dimensions diagram).
• Remove 1 panel fixing screw and open the panel.
• Attach the lower case with the four included fixing screws.
• Close the panel and attach it with 1 panel fixing screw.

Central Remote Controller Test Run

• Set according to the following procedure before use.
  • This allows the unit to monitor and operate the air conditioners.

Turn on all connected equipment

• Indoor unit, outdoor unit, air to air heat exchanger, general purpose equipment control interface, etc.

Turn on the power of the Central Remote Controller

• A Central control address must be assigned to the indoor units to be controlled.
• A Central Remote Controller or wired remote control is required to set the Central control address.
• Set the Central control address after finishing the test run of the indoor unit.
  • If you wish to configure the settings with the Central Remote Controller, you must first complete initial communication with all connected indoor units and outdoor units. Wait at least 10 minutes after turning on the power to the air conditioner before configuring the settings.

NOTE

• If you configure the Central control address settings before initial communication with the outdoor units is fully completed, the address may not be set for some units.
• For the TCC-LINK model, perform the following settings. Connect the U3 and U4 terminals in the outdoor unit (centre unit) to the relay connectors

Register the indoor units to the unit

1. Press the [ ] and [ ] buttons simultaneously for 4 seconds or more on the All screen to move to “How to Display the “Servicing Menu” Screen (P.17-2)”. Perform “Obtain Address (If you will not change the Central control address (P.18-1-2))” of “Address Settings”.
2. After performing “If you will not change the Central control address (P.18- 2)”, check that there is no error in the displayed number of connected units, line address-indoor address, and Central control address (*1), then perform “If you will not change the Central control address (P.18-3)”.

If there is an error

• Check the power supply and wiring.
• To change the address, use the local remote controller or the unit (“To change the Central control address (P.19-3 to 4)”).
• Repeat the setting in this section (3.Register the indoor units to the unit) from the beginning.

Assign indoor units to zones 1 to 10

• Perform “Change the Zone to which the Indoor Unit Belongs (Zone Settings)”.
• Return to the All screen and check if the displayed number of units matches the number registered in the zone (*2) Indoor units that are not registered in a zone are not included in the number of units on the All screen.

Operation confirmation
Check whether the indoor units can be operated from the Central Remote Controller. Also, check whether the operation of the local remote controller is reflected on the Central Remote Controller.

Preparation for delivery
If an inspection code occurs during operation check, perform “Delete check history”. This completes the test run for the controller. For other detailed settings, refer to “Owner’s Manual” and “Installation Manual”.

“Servicing Menu” Settings

How to Display the “Servicing Menu” Screen

1. Display the “All” screen
2. Press [ ] (Menu) and [ ] (Control) together for more than 4 seconds
   • The “Servicing Menu” screen appears.
3. Press [˄] and [˅] to select the item, then press [ ] (Confirm)
   • For details on the setting contents of each item, refer to “Servicing Menu Items”.

Servicing Menu Items

No.| Setting Items| Description| Reference

Page

---|---|---|---

1

| ****

Address Settings

| Obtain Address| Obtains (register) indoor units and changes the Central control address.| P.18
Address Display| Displays the registered indoor unit addresses.| P.20
Address Auto-setting| Sets the Central control address automatically.| P.20

2

| ****

Zone Settings

| Central control address| Assigns the registered indoor units to zones 1 to 10.| P.21
Line Address
Delete zone setting| Deletes all zone settings.| P.23

3

| ****

Display Settings

| Daylight-saving| Sets whether to display the daylight-saving time setting in the clock setting.| P.24
Temperature Display Conf.| Sets the temperature display unit (°C/°F) and interval (1°C/0.5°C).| P.24
Unit order setting| Changes the display order of indoor units on the Unit screen.| P.25
4| Check/Notice Settings| Delete check history| Deletes the check code history.| P.26
Notice Settings| Sets the notice code and deletes the history.| P.26
5| External Input Settings| Sets the function to DI1 to DI3.| P.27
6| CRC Mode Change Conf.| Switches between Central control address Control Mode and Local Control Mode.| P.29
7| DN setting| Only service personnel should perform this work.| P.29
8| Communication Conf.| Changes the Communication Conf.| P.30

9

| ****

Communication Check

| Connection Confir. List| Displays the current operation status of the Central control addresses 1 to 128.| P.32
Communication Quality| Displays the Communication Quality.| P.32
10| Register Contact Info| Contact TEL No.| Enter the contact information (service store telephone number) for when an error occurs.| P.33
11| ALL Unit ON/OFF Setting| Switches the target for simultaneous ON / OFF.| P.34
12| Air to Water Setting| Switches the target Air to Water Heat Pump unit for ON / OFF.| P.34

Register/Check Indoor Unit (Address Settings)

1. Select “Address Settings” on the “Servicing Menu” screen and press [ ] (Confirm)
   • The “Address Settings” screen appears.
2. Press [˄] and [˅] to select the item, then press [ ] (Confirm)
   • The screen of the selected item appears.

Obtain Address
Register the indoor unit to the unit. If you will not change the Central control address Set the Central control address with the local remote controller in advance. If you will change the Central control address with the central controller, see “To change the Central control address

1. Select “Obtain Address” on the “Address Setting” screen and press [ ] (Confirm)

2. The “Obtain Address” confirmation screen appears.

3. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   “Obtaining address… ” appears, and after a while, the “Indoor unit list” screen appears.

   • This operation will take several minutes.
   • On the “Obtain Address” confirmation screen, press [ ] (Return) or select “No” and press [ ] (Confirm) to return to the “Address Settings” screen.

4. On the “Indoor unit list” screen, check that there is no error in the number of connected units and the displayed address, then press [ ] (Return)
   The “Address Confirm” confirmation screen appears.

5. Press [˄] and [˅] or [ ] (Control) to switch pages.

   • Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)

   • After the “Address Settings ” screen, return to the “Servicing Menu” screen.
     This completes “Obtain Address”.

   • Select “No” and press [ ] (Confirm) to return to the “Servicing Menu” screen without registering indoor units.
     Indoor unit list screen

To change the Central control address

1. Select “Obtain Address ” on the “Address Settings” screen and press [ ] (Confirm)
   The “Obtain Address” confirmation screen appears.

2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   “Obtaining address… ” appears, and after a while, the “Indoor unit list” screen appears.

   • This operation will take several minutes.On the “Obtain Address” confirmation screen, press [ ] (Return) or select “No” and press [ ] (Confirm) to return to the “Address Settings” screen.

3. Press [<] [˄] [˅] [>] to select the indoor unit whose Central control address you want to change, then press [ ] (Confirm)

4. The “Central control address list” screen appears.

   • In the screen, black is “cursor” and grey is “assigned Central control address”.
   • The Central control address can be set within the following range.
   • Models that support TU2C-LINK: 1 to 128
   • Models that do not support TU2C-LINK: 1 to 64

5. Press [<] [˄] [˅] [>] to select the Central control address, then press Return to the “Indoor Unit List” screen.

6. After changing the Central control address, press [ ] (Return) on the “Indoor Unit List” scree

   • The “Address Confirm” confirmation screen appears.

7. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   “Registering the address… ” → “Obtaining address… ” appears and the display returns to the “Indoor Unit List” screen.

   • This operation will take several minutes.
   • Select “No” and press [●] (Confirm) to return to the “Servicing Menu” screen without registering the changed address.

8. Check that the displayed address is the address changed in steps 3 to 4, and press [ ] (Return)

   • The “Address Confirm” confirmation screen appears.

9. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)

   • After the “Address Settings ” screen, return to the “Servicing Menu” screen.
     This completes “Obtain Address”

   • This operation will take several minutes.

Address Display
The indoor units registered in the unit are displayed.

1. Select “Address Display” on the “Address Settings” screen and press [ ] (Confirm)
   • The “Address Display” confirmation screen appears.
2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   • The “Address Display” screen appears.
   • Press [˄] and [˅] to switch pages.

Address Auto-setting
The Central control address of the connected indoor units is automatically set from 1 in ascending order of the line addressindoor address.

IMPORTANT: All currently set Central control addresses are overwritten.

1. Select “Address Auto-setting” on the “Address Settings” screen and press [ ] (Confirm)
   • The “Address Auto-setting” confirmation screen appears.
2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   • The display shifts from “Registering the address… ” to “Address Settings “, and the process is complete when the “Servicing Menu” screen appears.
   • This operation will take several minutes.

NOTE

• At initial startup or when “Zone Settings” is not set, when “Obtain Address” is performed, the connected indoor units are set to “ZONE-1” up to 64 units in ascending order of line address. The 65th and subsequent units are not set. If you wish to monitor and control 65 or more units, use another Central Remote Controller to perform “Zone Settings”.
• If you change the address from the local remote controller or register the wrong Central control address in the Central Remote Controller, normal operation will not be possible. Perform “Obtain Address” again.
• Devices that set the Central control address with DIPSW cannot change the Central control address from the Central Remote Controller. Configure the settings beforehand so that they do not overlap with other devices.

Change the Zone to which the Indoor Unit Belongs (Zone Settings)

1. On the “Servicing Menu” screen, select “Zone Settings” and press [ ] (Confirm)
   • The “Zone Settings” screen appears.
   • The indoor unit list display can be selected from the Central control address order or the Central control address order.
2. Select “Central control address” using [˄] and [˅] then press [ ] (Confirm)
   • The “Address list” screen appears.
   • Press [ ] (Control) to go to the next page.
3. Press [<] [˄] [˅] [>] to select the address, then press [ ] (Confirm)
   • The “Zone list” screen appears.
4. Press [<] [˄] [˅] [>] to select a zone No., then press [ ] (Confirm)
   • The display returns to the “Address List” screen.
   • The selected zone No. appears to the right of the address.
   • The number inside < > is the number of units for which the zone No. is set.
   • Up to 64 units can be set.
   • Air conditioners and Air to Water Heat Pump cannot be set in the same zone.
   • If there is both a water temperature control unit and a room temperature control unit, set them in different zones. If they are set in the same zone, it will not be possible to apply batch settings by zone or to set the temperature based on a schedule.

To Change the Group Zone of Multiple Indoor Units

When “Central control Address” is selected

1. Perform steps 1 to 2 in “Change the Zone to which the Indoor Unit Belongs” (P.21). The “Address List” screen is displayed.

   • You can set either “Central control Address” or “Line Address”.

2. Put the cursor on the first address, and then press [≡] (Menu) and [ ] (Confirm) at the same time. Multiple units are selected.

   • If you press [ ] (Return), the selection of multiple units is cancelled, and the cursor returns to the first address.

3. Select the last address by using [<], [˄], [˅], and [>], and then press [ ] (Confirm).

   • The “Zone List” screen is displayed.

4. Select a zone number by using [<], [˄], [˅], and [>], and then press [ ] (Confirm).
   The “Address List” screen returns.

   • The selected zone no. is displayed to the right of the address.
   • The number in < > is the number of units for which the zone No. is set.
   • You can make the settings for up to 64 units.
   • An error screen is displayed if you set 65 or more units.

Set the indoor unit as being out of the scope of management

On the “Zone List” screen, select “Del” then press [ ] (Confirm)The display returns to the “Address List” screen.

• The zone number is deleted and will not be included in the number of units on the All screen.

Delete zone setting

IMPORTANT: After “Delete zone setting”, the number of controlled/monitored units will be 0. Reset any zone.

1. On the “Zone Settings” screen, select “Delete zone setting” then press [ ] (Confirm)
   • The “Delete zone setting” confirmation screen appears.
2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   • “It has been deleted” appears and the display returns to the “Zone Settings” screen.

Changing the Display Method (Display settings)

1. On the “Servicing Menu” screen, select “Display settings” then press [ ] (Confirm)
   • The “Display settings” screen appears.
2. Select an item with [˄] and [˅] then press [ ] (Confirm)
   • The screen for the selected item appears.

Daylight-saving

1. On the “Display settings” screen, select “Daylight-saving” then press [ ] (Confirm)
   • The “Daylight-saving” screen appears.
2. Select “Enable” or “Void” using [˄] and [˅] then press [ ] (Confirm)
   • Press [ ] (Return) to return to the “Display settings” screen.
   • When “Void” is set, the clock setting “Daylight-saving” is hidden.

Temperature Display Conf.

1. On the “Display settings” screen, select “Temperature Display Conf.” then press [ ] (Confirm)

   • The “Temperature Display Conf.” screen appears.

2. Press [˄] and [˅] to select the item, then press [ ] (Confirm)

   • The screen for the selected item appears. Temp. Unit

3. Press [˄] and [˅] to select the temperature unit, then press [ ] (Confirm)
   The temperature unit is set.

   • Press [ ] (Return) to return to the “Temperature Display Conf.” screen.
   • The Air to Water Heat Pump cannot display temperature in Fahrenheit. Temp. Increments

4. Press [˄] and [˅] to select the temperature resolution, then press [ ] (Confirm)
   The temperature resolution is set.

   • Press [ ] (Return) to return to the “Temperature Display Conf.” screen.
   • The Air to Water Heat Pump cannot display temperature as 0.5 °C.

Unit Order Settings
Set the display order of indoor units on the “Unit” screen.

1. On the “Display settings” screen, select “Unit Order Settings” then press [ ] (Confirm)
   The “Unit Order Settings” screen appears.

2. Press [˄] and [˅] to select the display order, then press [ ] (Confirm)
   The display order changes to the selected display order.

   • Press [ ] (Return) to return to the “Display settings” screen.

NOTE: Central control address: The indoor units are arranged in ascending order of Central control address, and the numbers display the Central control address.

Line address : The indoor units are arranged in ascending order of line address, and the numbers display the serial number.

Delete the History and Set the Notice Code (Check/Notice Settings)

1. On the “Servicing Menu” screen, select “Check/ Notice Settings” then press [ ] (Confirm)
   The “Check/Notice Settings” screen appears.

2. Press [˄] and [˅] to select the item, then press [ ] (Confirm)
   The screen for the selected item appears.

Delete check history

1. On the “Check/Notice Settings” screen, select “Delete check history” then press [ ] (Confirm)
   • The “Delete check history” confirmation screen appears.
2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   • “It has been deleted” appears and the display returns to the “Check/Notice Settings” screen.

ON/OFF Settings

1. On the “Check/Notice Settings” screen, select “Notice Settings” then press [ ] (Confirm)
   • The “Notice Settings” screen appears.
2. Press [˄] and [˅] to select “ON/OFF Settings”, then press [ ] (Confirm)
   • The “ON/OFF Settings” screen appears.
3. Press [˄] and [˅] to select the notice code to display, then press [ ] (Confirm) ” ” is displayed in the selected notice code.
   • Press [ ] (Confirm) to select/cancel ” “.
   • Use [ ] (Control) to switch pages.
   • Press [ ] (Return) to return to the “Notice Settings” screen.

Delete Notice history

1. On the “Notice Settings” screen, select “Delete Notice history” then press [ ] (Confirm)
   • The “Delete Notice history” confirmation screen appears.
2. Press [˄] and [˅] to select “Yes”, then press [ ] (Confirm)
   • “It has been deleted” appears and the display returns to the “Notice Settings” screen.

Changing the External Input Function (External Input Settings)

1. On the “Servicing Menu” screen, select “External Input Settings” then press [ ] (Confirm)

   • The “External Input Settings” screen appears.

2. Press [˄] and [˅] to select the input terminal to set then press [ ] (Confirm)

   • The “Select function” screen appears.

3. Select the function with [˄] and [˅], press [ ] (Confirm), then press [ ] (Control) to go to the next screen
   The “Select signal” screen appears.

   • It is necessary to set the control contents for “Locking” and “Power peak cut”.
   • When “Void” is set, the display returns to the “External Input Settings” screen.

4. Select the input signal with [˄] and [˅], press [ ] (Confirm), then press [ ] (Control) to go to the next screen

   • The “Select Zone” screen appears.

5. Press [<] [˄] [˅] [>] to select the target zone, then press [ ] (Confirm) Press [ ] (Confirm) to select/cancel ” “.

   • In the initial setting, all zones are selected.
   • Zones where indoor units are not registered are not displayed.

6. Select the target zones and press [ ****] (Control)

   • The settings are completed and the display returns to the “External Input Settings” screen.

External input function table

NOTE

• The icon for each function is displayed at the top of the clock when a signal is received.
• When Night Operation is set, turn on the Silent Mode setting of the Hydro Unit to operate the Air to Water Heat Pump

Switch Operation Mode (CRC Mode Change Conf.)

1. On the “Servicing Menu” screen, select “CRC Mode Change Conf.” then press [ ****] (Confirm)
   • The “CRC Mode Change Conf.” screen appears.
2. Press [˄] [˅] to select the mode, then press [ ****] (Confirm)
   • 0Press [ ****] (Return) to return to the “Servicing Menu” screen.

NOTE
Central Control Mode: Use this unit as a Central Remote Controller. By setting the “Key lock” on this unit, you can restrict the operation of the local remote controller. Local Control Mode: Use this unit as a remote controller. When “Key lock” is set by another Central Remote Controller, the operation of this unit is restricted in the same way as the local remote controller. While Local Control Mode ****is set, appears at the top of the clock and on each control screen.

Change the Indoor Unit Data (DN setting)

IMPORTANT

• Only service personnel should perform this work.
• Do not change this as it is related to the control of the device.

Change Communication Configuration (Communication Conf.)

1. On the “Servicing Menu” screen, select “Communication Conf.” then press [ ] (Confirm)
   • The “Communication Conf.” screen appears.
2. Press [˄] and [˅] to select the SW number, then press [<] and [>] to move the cursor to the switch you want to change
3. Press [˄] [˅] to change the value, then press [ ****] (Confirm)
   • The data is confirmed and the display returns to the “Servicing Menu” screen.
   • To change multiple values, change all switches then press [ ****] (Confirm).

NOTE: For details of Communication Configuration, refer to the next page.Do not change any settings other than (1) and (2).

Indoor unit address acquisition method setting

• 0 : Line address mode
• 1 : Central control address mode

Central controller ID setting
When using in combination

• When using 2 or more units in combination with this Central Remote Controller only Set the Central controller ID numbers for the second and subsequent units to Central controller ID 2 and subsequent ID numbers.
  • Example : When using 3 units in combination
  • 1st unit: Central controller ID 1 (initial setting)
  • 2nd unit : Central controller ID 2
  • 3rd unit: Central controller ID 3
• When using in combination with a central control device that supports TU2C-LINK Set to Central controller ID 2 or a subsequent ID number so that it does not overlap with other central control devices.
• When using in combination with a central control device that does not support TU2C-LINK Set to “Old controller”. When replacing with a Central Remote Controller that does not support TU2C-LINK If only 1 unit is used (no combined use), use the initial settings. When using more than 1 unit, set according to “When using in combination”.

IMPORTANT

• If you set the address acquisition method to “Line address mode”, it will take time to obtain the address.
• Do not set the Central controller ID to a value other than the values shown in the list.
• If the setting is incorrect, a communication error may occur.
• Unless using it together with another central control device other than this device, there is no need to set the central controller ID.
• If there is another central control device (of the U series) other than this device, perform central controller ID setting so that there is no duplication of ID numbers. If there is any duplication of central controller IDs, the check code S33 will appear.
• If there is another central control device (not of the U series) other than this device, select “Old controller” for the setting.
• If the following settings are changed, turn the power off and then back on for the multi outdoor units after the connected SMMS-u.
  • Central controller IDs 1 to 20 → Old controllers
  • Old controllers → Central controller IDs 1 to 20

Check the Connection Status of the Indoor Units (Communication Check)

1. On the “Servicing Menu” screen, select
   • “Communication Check” then press [ ****] (Confirm) The “Communication Check” screen appears.
2. Press [˄] and [˅] to select the item, then press [ ****] (Confirm)
   • The screen for the selected item appears.

Connection Confir. List

1. On the “Communication Check” screen, select “Connection Confir. List” then press [ ****] (Confirm)
   • The “Connection Confir. List” screen appears.
2. Press [˄] and [˅] to switch pages
   • Press [ ****] (Return) to return to the “Communication Check” screen.
   • The Central control addresses are displayed in ascending order.
   • Central control addresses fields that are not connected will be blank.

Communication Quality

1. On the “Communication Check” screen, select “Communication Quality” then press [ ****] (Confirm)
   • The “Communication Quality” screen appears.
2. Press [˄] and [˅] to switch pages
   • Press [ ****] (Return) to return to the “Communication Check” screen

Register Contact Information when an Error Occurs
(Register Contact Info)

Contact TEL No.

1. On the “Servicing Menu” screen, select “Register Contact Info” then press [ ****] (Confirm)
   • The “Register Contact Info” screen appears.
2. Select “Contact TEL No.” with [˄] and [˅] then press [ ****] (Confirm)
   • The “Contact TEL No.” screen appears.
3. Move the cursor with [<] and [>], select a number with [˄] and [˅], then press [ ****] (Confirm)
4. uThe contact TEL No. is registered and the display returns to the “Register Contact Info” screen.

ALL Unit ON/OFF Setting

1. On the “Servicing Menu” screen, select “ALL Unit ON/OFF Setting” then press [ ****] (Confirm)
   • The “ALL Unit ON/OFF Setting” screen appears.
2. Press [˄] and [˅] to select the item, then press [ ****] (Confirm)
   • Press [ ****] (Return) to return to the “Servicing Menu” screen.

Air to Water Setting

1. On the “Servicing Menu” screen, select “Air to Water Setting” then press [ ****] (Confirm)
   • The “Air to Water Setting” screen appears.
2. Press [˄] and [˅] to select the item, then press [ ****] (Confirm)
   • Press [ ****] (Return) to return to the “Servicing Menu” screen.

Toshiba Carrier Corporation 336 TADEHARA, FUJI-SHI, SHIZUOKA-KEN 416-8521 JAPAN

DEB5219151-2

References

• Toshiba Carrier Global | Air conditioner | TCB-SC640U

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