Toshiba MMY-MAP0601HT8, TCB-PCNT30TLE, RBC-AS21E2, RBC-EXW21E2, RBC-AMT21E APPLICATION CONTROL MANUAL

FILE NO. A04-007

APPLICATION CONTROL MANUAL

Super Modular Multi System

Heat Pump Type
Cooling Only Type

Super Heat Recovery Multi System

Heat Recovery Type

R410A

CONTENTS

1 Outline of system and application control

1-1 Outline of application control ................................................................................................... 5

1-2 List of application control models and setting.......................................................................... 6

1-3 Remote controller.................................................................................................................... 7

1-4 Application controls for remote controller.............................................................................. 1 0

1-4-1 Application for indoor remote controller ....................................................................... 10

1-4-2 Two remote control....................................................................................................... 11

1-4-3 Group control............................................................................................................... 12

1-4-4 Application controls for central remote controller......................................................... 13

1-5 Application controls of indoor unit ......................................................................................... 15

1-6 Application controls of outdoor unit ....................................................................................... 1 5

1-7 Application controls by optional P.C. board of outdoor unit.................................................... 16

1-8 Application controls by optional devices connected to indoor unit ........................................ 19

1-9 Application control for network (Tentative) ............................................................................ 21

1-9-1 Touch screen controller system ................................................................................... 21

1-9-2 LONWORKS ............................................................................................................... 22

1-9-3 Windows based central controller................................................................................ 23

1-9-4 BACnet ........................................................................................................................ 23

2 System wiring diagram and control wiring method

2-1 Applicable model and connectable units ............................................................................... 25

2-2 System wiring diagram.......................................................................................................... 26

2-2-1 For VRF system only................................................................................................... 26

2-2-2 For combined system with “1:1 model”........................................................................ 27

2-3 Design of control wiring......................................................................................................... 28

2-4 Earth method of shield wiring................................................................................................29

2-4-1 For VRF system only................................................................................................... 29

2-4-2 For combined system with “1:1 model”........................................................................ 30

2-5 General requirement for control wiring .................................................................................. 31

3 Address setup

3-1 Definition of address ............................................................................................................. 34

3-2 Address setup procedure ..................................................................................................... 38

3-2-1 Check at main power-ON............................................................................................ 39

3-2-2 Automatic address setup............................................................................................. 40

3-2-3 Manual address setup from remote controller ............................................................. 43

3-2-4 Confirmation of indoor unit address and position by using the remote controller......... 44

3-2-5 Change of indoor address from remote controller ....................................................... 45

3-2-6 Address setup example (VRF system) ....................................................................... 47

3-2-7 Clearance of address (Return to status (Address undecided)

at shipment from factory) ............................................................................................ 50

3-2-8 In case of increase the address-undefined indoor units (Extension, etc.)................... 51

3-2-9 How to set central control address.............................................................................. 52

3-2-10 Address re-setup for central control of the super-digital inverter

and the digital inverter............................................................................................... 54

3-2-11 Indoor address change example (Super-digital inverter and digital inverter) ............ 58

2

4 Details of application control and devices

4-1 Remote controller................................................................................................................. 61

4-1-1 Wired remote controller (RBC-AMT21E) .................................................................... 61

4-1-2 Simple remote controller (RBC-AS21E) ..................................................................... 67

4-1-3 Wireless remote controller kit ..................................................................................... 71

4-1-4 Weekly timer (RBC-EXW21E).................................................................................... 97

4-2 Central remote controller (TCB-SC642TLE) ...................................................................... 107

4-2-1 Outline ...................................................................................................................... 107

4-2-2 Installation procedure ............................................................................................... 112

4-2-3 Operation procedure................................................................................................. 130

4-3 Application controls of indoor unit ...................................................................................... 136

4-3-1 Setup of selecting function in indoor unit .................................................................. 136

4-3-2 V entilation fan control from remote controller ............................................................ 139

4-3-3 Leaving-ON prevention control................................................................................. 140

4-3-4 Po wer peak-cut from indoor unit............................................................................... 140

4-3-5 Remote sensor (TCB-TC21LE)................................................................................ 141

4-4 Application controls of outdoor unit .................................................................................... 142

4-4-1 Outdoor fan high static pressure shift....................................................................... 143

4-4-2 Cooling priority , heating priority control..................................................................... 143

4-4-3 Indoor unit setup in “Specific indoor unit priority control” mode................................. 144

4-5 Application controls by optional P.C. board of outdoor unit................................................. 145

4-5-1 Power peak-cut control............................................................................................. 150

4-5-2 Snowfall fan control .................................................................................................. 152

4-5-3 External master ON/OFF control.............................................................................. 152

4-5-4 Night operation control.............................................................................................. 153

4-5-5 Operation mode selection control ............................................................................. 153

4-6 Application controls by optional devices connected to indoor unit ..................................... 154

4-6-1 Remote control by “remote location ON/OFF control box” ....................................... 154

4-6-2 Central control by AI-NETWORK central controller (Network adapter) ................... 157

4-6-3 Central control with “1:1 model” (“1:1 model” connection interface).......................... 163

5 Dimensional drawing

3

1

OUTLINE OF SYSTEM

AND

APPLICATION CONTROL

1-1 Outline of application control
1-2 List of application control models and setting
1-3 Remote controller
1-4 Application controls for remote controller

1-4-1 Applications for indoor remote controller
1-4-2 Two remote control
1-4-3 Group control

1-4-4 Application controls for central remote controller
1-5 Application controls of indoor unit
1-6 Application controls of outdoor unit
1-7 Application controls by optional P.C.board of outdoor unit
1-8 Application controls by optional devices connected to indoor unit
1-9 Application control for network (Tentative)

1-9-1 Touch screen controller system

1-9-2 LONWORKS

1-9-3 Windows based central controller

1-9-4 BACnet

4

1-1 Outline of application control

LON Gateway

LONWORKS

BMS-LSV2E

Touch screen
controller

• Monitoring

• Remote control

• Schedule operation

• Error code indication

• Alarm list indication

• Monthly report

• Energy monitoring data
etc.

Intelligent
server

Energy meter
relay interface

TCS-Net Interface

BMS-IFLSV1E

I/F

Energy
monitoring

Power peak-cut
control board
TCB-PCDM2E

External master
ON/OFF board
TCB-PCMO2E

Outdoor Units
(VRF system)

Super Digital Inverter
Digital Inverter

Terminal
Screw M3 6

71

4-4ø hole

61

OFF

TOSHIBA

NCC-1212

OFF

COM COMON

TCB-PCOM1
TCB-PCOM1E

8
ICI

ON

5

41

OFFON

5

T82

PJ17

MS

T81

85

75

OPERATION

MS

/

10

K100

Terminal
Screw M4 8

55.5
4-4ø hole

Terminal

45.5

Screw M3 6

TOSHIBA

NCC-1214

TCB-PCMO1
TCB-PCMO1E

HEAT

10

8

COOL

41

PJ17

ICI

60

50

5

41

COM

COM

D2

TB1

"1:1 model"

connection interface

TCB-PCNT30TLE

Remote location

ON/OFF control box

TCB-IFCB-4E

Power peak-cut control signal

Operation status output

Operation control command

Master ON/OFF signal

Air-conditioning

Management on site

Batch drive, error output

Master ON/OFF signal

Weekly timer
RBC-EXW21E

Alarm status output

ON/OFF command

Central remote
controller
TCB-SC642TLE

Master remote controller

Side remote controller

Weekly timer
RBC-EXW21E

Wired remote controller
RBC-AMT21E

Sub-remote
controller
RBC-AS21E

Network adapter
TCB-PCNT20E

AI-NETWORK

Wireless remote
controller

AI-NET central
control devices

*1 BACnet

TM

*2 LoNWoRKS

: ANSl/ASHRAE135-1995, A Data CommuniCation Protocol for Bulding Automation and ControI Networks.

R

: Resistered trademark Echelon Corporation.

5

1-2 List of application control models and setting

Contents of application controlModel nameAppliance name

Remote Controller

Wired remote controller
Simple remote controller

Wireless remote
controller

Weekly timer

Central remote
controller

Application controls of indoor unit

Function change of Setting functions necessary to perform Item code (DN) setting from
indoor unit

Ventilation fan control
from remote controller

Leaving-ON
prevention control

Demand control from
indoor unit

Remote sensor

Application controls of outdoor unit

Outdoor fan high static
pressure shift

Control for cooling/
heating priority

Specific indoor unit
priority control

Optional P.C. board of outdoor unit

Power peak-cut
control board

External master
ON/OFF control board

Optional devices connected to indoor unit

Remote location
ON/OFF control box • ON/OFF command from external signals

Network adapter

RBC-AMT21E

RBC-AS21E

TCB-AX21U(W)-E

RBC-AX22CE

TCB-AX21E

RBC-EXW21E

TCB-SC642TLE

TCB-TC21LE

TCB-PCDM2E

TCB-PCMO2E

TCB-IFCB-4E

TCB-PCNT20E

• Individual control Indoor unit

• Group control

• Two remote control

• Individual control

• Two wireless control For under ceiling type

• Two remote control (wired & wireless) For other type

• Weekly schedule operation Wired remote controller
(main remote controller + weekly timer)

• Central control of Max.64 or units Outdoor unit

• Weekly schedule operation
(central remote controller + weekly timer)

Central control without indoor remote controller

•

• Central control with "1:1 model"

applied control at the local site. wired remote controller
Ventilation fan start/stop operation from Setting from wired remote

wired remote controller. controller and relay wiring
Control to prevent Leaving-ON of indoor

unit.
Thermo-OFF operation by relay signal

Remote sensing of indoor air temperature Indoor unit

Change of outdoor fan control when connecting
a duct to discharge port of outdoor unit.

Change operation mode priority
Specific indoor unit has the priority for

operation mode.

Power peak-cut (Standard function) Inverter assembly of the header
Power peak-cut (Expansion function)

Snowfall fan control
External master ON/OFF control
Night operation (sound reduction) control
Operation mode selection control

• Monitoring from outside Indoor unit

Central control with AI-Network system Indoor unit

Connecting device or setting method

For 4-way sir discharge cassette type

(Indoor unit)

(local supply)

Relay wiring (local supply)

Switch setting on outdoor
interface P.C. board

Item code (DN) setting from wired
remote controller

outdoor unit

Reference

No.

1-3
1-4

1-5

1-6

1-7

1-8

"1:1 model" connection
interface

Application control for network

Touch screen controller
system

LONWORKS

Windows based
central controller

BACnet

TCB-PCNT30TLE

BMS-TP5120ACE

TCB-IFLN***

BMS-LSV***

BMS-LSV***

Central control with "1:1 model" Indoor unit
(link Toshiba Digital Inverter system
and Super Digital Inverter system)

etc.

etc.

etc.

etc. BACnet network.

Combination of touch screen and local Central control wiring
server (monitoring, remote operation, etc)

LONWORKS interface connected to Central control wiring
building management computer

Local server is "Plug-in" into customer's Central control wiring
personal computer

Local server is connected under the Central control wiring

1-9

6

1-3 Remote controller

Model

Name

name

Appearance Application

RBC-AMT21E

Wired remote controller

TEST

SET DATA

SETTING

SETTING

Function

Reference

No.

• Start / Stop

Connected to indoor unit

• Changing mode

• T emperature setting

• Air flow changing

• Timer function
Either “ON” time or “OFF” time



or “CYCLIC” can be set how
many 30 min. later ON or OFF is

CODE No.

UNIT No.

R.C. No.

TEST

UNIT

CL

SET

Wired remote

controller

Wired remote controller
(In case of control by
2 remote controllers)

operated.
Combined with the weekly timer ,



weekly schedule operation can
be operated.

• Filter sign

Displays automatically maintenance
time of indoor filter.

Filter sign flashes.

• Self-diagnosis function

1-4

4-1-1

Pressing “CHECK” button displays
cause of trouble on the check code.

• Control by 2 remote controllers is

available.
Two remote controllers can be

connected to one indoor unit. The
indoor unit can be separately
operated from the isolated places.

• Start / Stop

Connected to indoor unit

• T emper ature setting

• Air flow changing

˚C
˚F

• Check code display

RBC-AS21E

Simple remote controller

Wireless remote controller kit

Simple remote controller

Connected to indoor unit

• Start / Stop

• Changing mode

• T emperature setting

• Air flow changing

• Timer function

Either “ON” time or “OFF” time or
“CYCLIC” can be set how many 30
min. later ON or OFF is operated.

• Control by 2 remote controllers is

available.
Two wireless remote controllers can

operate one indoor unit. The indoor
unit can be separately operated
from the isolated places.

• Check code display

TCB-AX21U (W)-E

(For 4-way Air Discharge Cassette)

RBC-AX22CE

(For Under Ceiling)

1-4

4-1-2

1-4

4-1-3

TCB-AX21E RBC-AX22CE TCB-AX21U (W)-E

TCB-AX21E

(For others except concealed duct
high static pressure type)

7

Wireless remote controller kit
(Kit of Hand set and receiver unit)

Wireless remote controllerSensor unit (receiver unit)

Outlook and function

Wireless remote controller

Reference No.

(Common for all indoor unit type)

TCB-AX21U(W)-E

(for 4-way Air Discharge
Cassette type)

186W x 186D
(Mounted to the corner of
ceiling panel)

TCB-AX22CE

(For under Ceiling type)

130W x 65H
(Mounted to the display
position of front cover)

4-1-3

• Check code display

(sensor block displa y on
the receiving unit)

• Test operation

(Switch setting on the
receiver unit)

• Emergency operation

(Push “emergency
operation” button on the
receiver unit)

TCB-AX21E

(Universal type for other
indoor unit except high
static pressure duct type. )

70W x 120H
(Placed on the wall,etc)

8

Name

Model

name

Appearance Application

Connected to central

remote controller,

wired remote controller

Performance

• Weekly schedule operation
Setting different start / stop time



for each day of the week
ON / OFF can be easily set 3



times a day.

Reference

No.

Weekly timer

RBC-EXW21E

PROGRAM1
PROGRAM2
PROGRAM3

WEEKLY TIMER

SuMoTuWeThFr Sa

ERROR

Wired

remote controller

Central

remote controller

Outdoor unit

Weekly

timer

Weekly

timer

Connected to outdoor unit,

indoor unit

Header Follower

ON

8:00 12:00 13:00 18:00 19:00 21:00

“CHECK” “PR OGRAM” “DAY”



OFF ON OFF ON OFF

button make setting copy easy.
Two patterns of schedule for a



week can be specified.
(Summer schedule and winter

1-4

4-1-4

schedule, etc.)
“CANCEL ” “D A Y” button make



holiday setting easy.
If power supply fails, the setting



contents are stored in memory,
for 100 hours.

• Individual control up to 64 indoor

units.

• Individual control for max. 64 indoor

units divided 1 to 4 zone.

Up to 16 indoor units for each



zone



• Up to 16 outdoor header units are

connectable.

ZONE

ALL

ZONE

GROUP

1234

TEST

UNIT No.

SET DATA

SETTING

R.C.

No.

SELECT ZONE

GROUP

CL

SET

TCB-SC642TLE

Central remote controller

• 4 type central control setting to

inhibit individual operation by remote

CODE

No.

Outdoor unit

controller can be selected.

• Setting for one of 1 to 4 zone is

available.

1-4-4

4-2

Central

remote controller

• Usable with other central control

devices (Up to 10 central control
devices in one control circuit)

• Two control mode selectivity

Central controller mode



Remote controller mode



• Setting of simultaneous ON/OFF 3

times for each day of the week
combined with weekly timer.

Central
remote

controller

Indoor

remote controller

9

1-4 Application controls for remote controller

1-4-1 Applications for indoor remote controller

Basic function ModelSystem diagram

Wireless remote controllerMain remote controller

• Wired remote controller

Individual control

Air conditioner is



1



individually oper-



ated at a distance.



GROUP control



One remote controller



can control group of



2

Max. 8 indoor units.




Operating on the



same setting



Indoor

Remote

controller

Indoor

unit

Possible up to Max.
total length 500m

Remote

controller

Max.8 indoor units

unit

Indoor

Possible up to Max.total length 500m

unit

Indoor

unit

Indoor

unit

Receiver unit

Wireless

remote

controller

Indoor

unit

• Simple remote controller

• Wireless remote controller

• Wired remote controller

• Simple remote controller

RBC-AMT21E

RBC-AS21E

kit

TCB-AX21U(W)-E
RBC-AX22CE
TCB-AX21E

RBC-AMT21E

RBC-AS21E

Wired system Wireless system

Indoor

unit

Two remote control

Air conditioner is



3



controlled by two



remote controllers



at two places.



Remote

controller

Master

Possible up to Max.
total length 500m

Wired & Wireless
combination control
(Either controller
should be set as
side controller)

Control by

weekly timer

4



Weekly schedule



operation



Indoor

unit

Remote

controller

Side

Indoor

unit

Wireless

remote

controller 1

Master

Indoor

unit

Remote

controller

Weekly timer function

• Setting of ON-OFF
3 times par day

• Timer time is displayed.

• Designation of holiday

Wireless

remote

controller 2

Side

Wireless

remote

controller

• Wired remote controller

RBC-AMT21E

• Simple remote controller

RBC-AS21E

• Wireless remote control­ler kit

TCB-AX21U(W)-E
RBC-AX22CE
TCB-AX21E

• Wired remote controller

RBC-AMT21E

+

• Weekly timer

RBC-EXW21E

Remote

controller

Weekly

timer

10

1-4-2 Two remote control

This control is that one or more indoor units are controlled by two remote controllers.
(Max. two remote controller can be connected.)

●One indoor unit operated by
two remote controller

To outdoor unit

Unit

U1U2

A B

A B A B

Remote

controller

(Master)

Remote controller

Wiring

(Local supply)

Remote

controller

(Side)

Indoor

(Setting method for side remote controller)

<In case of wired remote controller>

Change the remote controller address
connector of the side remote controller on
the P.C. board.

●Group control operated by
two remote controller

To outdoor unit

U1U2

A B

A

controller

(Master)

U1U2 U1U2

B

Remote

(RBC-AMT21E)

Remote controller

Master remote controller

Remote controller
check

A B

A B

B

A

Remote

controller

(Side)

Remote controller
address connector

(In case of simple remote
controller [RBC-AS21E], refer to

“4-1-2 Simple remote controller”)

<In case of wireless remote controller>

Turn No.3 of DIP switch [S003] on sensor
P.C. board from OFF to ON.

In case of 4-way cassette type
(For others, refer to installation
manual of wireless remote
controller kit or

“4-1-3 Wireless remote
controller kit”)

(Operation)

1) Operation mode can be changed by “last push priority”.

2) In case of using a timer, connect the timer to either remote controller.

Bit 1 : OFF to ON

Cover

S 003

Side
remote
controller

Remote controller

address

ON

4

Sensor
P.C. board

Corner cap

1

2

3

11

1-4-3 Group control

Max. 8 indoor units can be controlled by one remote controller on a group control.
Twin, triple control of 1 by 1 model (Toshiba Digital inverter, Super digital inverter) is one of group control.
Header indoor unit controls indoor air temperature based on setting temperature of the remote controller.

<System sample>

Outdoor

unit

Header

Indoor

unit

Remote

controller

Indoor

1-1 1-2 1-3 1-8

unit

Indoor

unit

Indoor

unit

Max. 8 units

[NOTE] Be sure to supply the power for all indoor units on the group control.

If the power isn’t supplied to the header indoor unit, communication between indoor units
and remote controller can’t be performed.

[1] Display range of remote controller

Remote controller reflects the setting range of header indoor unit.
Setting range : Operation mode, Air Volume setting, Setting temperature

[ NOTE ] Don’t set the concealed duct high pressure type (AID-P***H, MMD-P***1H) to the header indoor unit.

Set the other type indoor unit to the header indoor unit.

• In case concealed duct high static pressure type is the header indoor unit, display of remote controller is as follows.
Operation mode : [A U TO] [ HE AT] [C OO L ] [FAN], no [ DRY] mode
Air volume selection: [HIGH]

• In case of [DRY] mode, duct type keeps [FAN] mode.

[ NOTE ] Don’t set cooling only model as header indoor unit.

Set heat pump model as header indoor unit.

• [AUTO] [HEAT] mode can’t be operated.

[2] Remote location control (HA)

Both header and follower indoor unit can response by remote location control (HA) signals.
Master ON/OFF control can be conducted for all indoor units on the same group.

[ NOTE ] Don’t input two or more HA signals to one group.

[3] Address setting

All indoor units on the same group must be turned on when automatic address setting is conducted.
If power supply is turned on three minutes later than automatic address setting, reboot will occur and automatic
address setting starts again.

[ NOTE.1 ] Be sure to do electrical work and control wiring certainly.
[ NOTE.2 ] Reconfirm the line / indoor / group address one by one.

Especially confirm the identical line address both outdoor and indoor side.

12

1-4-4 Application controls for central remote controller

Central manage-

1

ment controller
for 64 units

Header

Zone

Zone

Zone

Zone

Power
supply

4

U3, U4

3

2

U3, U4

1

unit

U3, U4

U1, U2

Header

unit

U1, U2

Header

unit

U1, U2

FS unit

Central
remote controller

Single phase
220/230/240V

Super MMS
Outdoor unit

Line-3

U5, U6

Indoor remote controller

U5, U6

Indoor remote controller

Outdoor unit

Line-1

Indoor remote controller

Indoor unit

Outdoor unit

Line-2

Super HRM

Indoor unit

Super MMS
Indoor unit

Function of central remote controller

• Individual control up to 64 indoor units.

• Individual control for max. 64 indoor units divided 1 to
4 zone. (Up to 16 indoor units for each zone.)

• Up to 16 outdoor header units are connectable.

• 4 type central control setting to inhibit individual
operation by remote controller can be selected.

• Setting for one of 1 to 4 zone is available.

• Usable with other central control devices
(Up to 10 central control devices in one control circuit)

• Two control mode selectivity
Central controller mode/Remote controller mode

• Setting of simultaneous ON/OFF 3 times for each day
of the week combined with weekly timer.

ModelBasic function System diagram

• Central remote
controller

TCB-SC642TLE

<Indoor remote controller>

• Wired remote controller

RBC-AMT21E

• Simple remote
controller

RBC-AS21E

Reference

No.

4-2

Central remote
controller

+

Weekly timer

Weekly



2



operation



schedule



can be set by



connecting a




weekly timer



to the central



remote



controller



Single phase
220/230/240V

Power
supply

Central

remote controller

Outdoor unitU3, U4

Indoor unit

Indoor remote controller

Weekly timer

Super MMS

13

U1, U2

• Central remote
controller

TCB-SC642TLE

+

• Weekly timer

RBC-EXW21E

<Indoor remote controller>

• Wired remote controller

RBC-AMT21E

or

• Simple remote
controller

RBC-AS21E

4-2

Basic function System diagram Model

Reference

No.

Remote central
control without

3

indoor remote
controller

U3, U4

Power
supply

Single phase
220/230/240V

Example of grouping operation

Power
supply

Single phase
220/230/240V

Power
supply

Single phase
220/230/240V

Central remote controller

U3, U4

Indoor remote controller
is required

Central remote controller

U3, U4

Central remote controller

Outdoor unit

Even when grouping operation is performed
by connecting multiple indoor units to 1 line,
the indoor remote controller is required.

Outdoor unit

U1, U2

(Group)

U1, U2

Indoor unit

Available

Outdoor unit

U1, U2

(Group)

Available

• Central remote
controller

TCB-SC642TLE

<Indoor remote

controller>

• Wired remote
controller

RBC-AMT21E

4-2

Central manage-

4

ment control with
“1 : 1 model”

Power
supply

U3, U4

Header
unit

U1, U2

Central remote controller

Super MMS

Indoor unit

Indoor remote controller

"1:1 model"
connection
interface

1

*

* TOSHIBA Digital Inverter System and Super Digital

Inverter System

14

• Central remote
controller

TCB-SC642TLE

• “1 : 1 model”
connection
interface

4-2

TCB-PCNT30TLE



RAV-SM560KRT-E,



SM800KRT-E are



not available



<Indoor remote

controller>

• Wired remote
controller

RBC-AMT21E

• Simple remote
controller

RBC-AS21E

1-5 Application controls of indoor unit

No

Control name

Function change

1

Ventilation fan control
from remote controller

2

Leaving-ON prevention
control

3

Demand control

4

Remote sensor
(TCB-TC21LE)

5

Remote
Controller

Indoor
Unit

Remote
Sensor

Function

Items necessary to perform the applied control at the
local site can be selected.

(Ex. Setup of TA sensor, body TA sensor / remote
controller sensor)

ON/OFF control can be operated from wired remote
controller when the entire heat exchanger or
ventilation fan is installed in the system.

CN32

FAN DRIVE

(2P WHI)

Indoor control

P.C.board

Using a card switch box, card lock etc, the leaving­ON of the indoor unit can be prevented by setting of
remote controller and relay wiring.

CN61

(YEL)

Indoor control

P.C.board

Thermostat-OFF operation by relay signal.

• Wiring example
CN73

(2P plug: RED)

Indoor control

P.C.board

Air temperature sensing at a distance.

Remote
sensor

Terminal block for
remote controller cable

[NOTE]

Don’t change TA sensor to remote controller sensor
by item code (DN) setting.

Relay (DC12V, procured locally)

1

1

2

2

Relay (procured locally)

1

1

T10

2

2

3

3

4

4

5

5
6

6

1

1
2

2

EXCT

Remote
controller
(Master)

Earth

Power supply

Outside contact

Relay (procured locally)

(Sold
separately)

Remote controller cable
(Procured locally)

AB

Indoor unit

Outside control
input of fan

To terminal

Relay coil signal

Item code (DN)

setting from wired

remote controller

Setting from wired

remote controller

+

Relay wiring

(local supply)

Setting from wired

remote controller

+

Relay wiring

(local supply)

Relay wiring

(local supply)

Remote sensor
(TCB-TC21LE)

Reference No.

4-3-1

4-3-2

4-3-3

4-3-4

4-3-5

1-6 Application controls of outdoor unit

No

1

2

Control name

Outdoor fan high static
pressure shift

Cooling priority, heating
priority control

Specific indoor unit
priority control

3

Increase outdoor fan speed so that a duct with the
maximum outside static pressure 35Pa can be installed.

Cooling priority or heating priority can be selected.
(Setup at shipment : heating priority)

Only one indoor unit can be set to priority for changeover
operation mode.

Function

15

Setting method

Switch setting on
outdoor interface

P.C. board

Switch setting on
outdoor interface

P.C. board

+

Item code (DN)

setting from wired

remote controller

Reference No.

4-4-1

4-4-2

4-4-3

1-7

Application controls by optional P.C. board of outdoor unit

Model

name

Appearance

Size : 71 x 85 (mm)

Function

[1] Power peak-cut Control

●●

● Feature

●●

The upper limit capacity of the outdoor unit is restricted based on the power peak
cut request signal from outside.

●●

● Function

●●

Two type control can be selected by setting SW07 on the interface P.C. board of
the header outdoor unit.

TCB-PCDM2E Local Supply

ON

SW1

COM

OFF

SW2

COM

Reference

No.

Application

TCB-PCDM2E

* Place this optional P.C.

board to inverter
assembly of the header
outdoor unit.

[Standard function]

SW07-2 OFF

Input

SW01

ON

OFF

[Expansion function]

SW07-2 ON

Input

SW01

OFF

ON

OFF

ON

• Be sure to prepare the point of contact for each terminal.

• Don’t turn on both SW1 and SW2 terminal simultaneously.

SW02

OFF

ON

SW02

OFF
OFF

ON
ON

0% (stop)

100% (Normal)

100% (Normal)

Up to 80%
Up to 60%

0% (stop)

SW07-1

OFF

100% (Normal)

SW07-1

OFF

100% (Normal)

4-5-1

ON

Up to 60%

ON

Up to 85%
Up to 75%
Up to 60%

16

Model

name

Appearance Function

[2] Snowfall fan control

●●

● Feature

●●

Outdoor fan is operated with the snowfall signal from outside.

●●

● Function

●●

TCB-PCMO2E Local Supply

COM

Size : 55.5 x 60 (mm)

Cooling

Reference

No.

SMC

Application

* Place this optional P.C.

board to inverter
assembly of the header
outdoor unit.

TCB-PCMO2E

SMC : Cooling mode select input (switch)

Terminal

Input signal

ON

Operation

Snowfall fan control
(Operates outdoor fan.)

SMC

OFF

ON

Usual operation
(Releases control)

OFF

This control is conducted when input signal stand up and fall down.
(Standing and falling status should be held for 100 mm.sec. or more.)

[3] External master ON/OFF control

●●

● Feature

●●

The outdoor unit starts or stops the system.

●●

● Function

●●

TCB-PCMO2E Local Supply

COM

SMC

Cooling

Heating

SMH

4-5-2

SMC : Input signal for start
SMH : Input signal for stop

Terminal

SMC

SMH

ON

Starts all indoor units.

OFF

ON

Stops all indoor units.

OFF

OperationInput signal

• Be sure to prepare non voltage continuous point of contact for each terminal.

This control is conducted when input signal stand up or fall down.
(Standing and falling status should be held for 100 mm.sec. or more.)

17

4-5-3

Model

name

Appearance Function

[4] Night operation (Sound reduction) control

●●

● Feature

●●

Sound level can be reduced with connecting outdoor E-parts by restricting
compressor and fan speed.

●●

● Function

●●

TCB-PCMO2E Local Supply

COM

Size : 55.5 x 60 (mm)

Cooling

Application

SMC : Cooling mode designated input switch

Terminal

SMC

Input signal

OFF

ON

SMC

Operation

ON

Night operation (sound reduction)
control

Usual Operation

Reference

No.

4-5-4

* Place this optional P.C.

board to inverter
assembly of the header
outdoor unit.

TCB-PCMO2E

OFF

This control is conducted when input signal stand up or fall down.
(Standing and falling status should be held for 100 mm.sec or more.)

[5] Operation mode selection control

●●

● Feature

●●

This control can be operated with the operation mode which is permitted by SMC
or SMH.

●●

● Function

●●

TCB-PCMO1E Local Supply

COM

SMC
Cooling
Heating

SMC : Cooling mode designated input switch
SMH : Heating mode designated input switch

SMC

ON

OFF

Only cooling mode
permitted

OFF

ON

Only heating mode
permitted

SMH

Selected operation modeSMH

4-5-5

Be sure to prepare non-voltage continuous point of contact for each terminal.

18

1-8 Application controls by optional devices connected to indoor unit

[1] Remote location ON/OFF control box

Model

name

TCB-IFCB-4E

Operation

Display

Appearance Features

● Start and stop of air conditioner is possible by the
external signal, and also indication of operation/
alarm to outside is possible.

Application Function

• Monitoring

ON/OFF status (for indoor unit)
Alarm status (system & indoor unit stop)

• ON/OFF command

Air conditioner can be turned ON/OFF by the
external signals.
The external ON/OFF signals are output for the

Interface

Remote

Controller

signals below.

ON/OFF

COM

Non-voltage

ON /OFF continuous signal

Reference

No.

4-6-1

[2] Network adapter

Model

name

Place optional P.C. board in E-parts of indoor unit.

TCB-PCNT20E

Power
Supply Al Network

Central Remote

Controller

TCB-SC641E

Appearance Features

● Indoor units of VRF system is controlled by AI­NETWORK central remote controller.
Connectable indoor units per group.

Connection of cables

Application

Central remote controller

X Y

CN03

1 2

1 3

CN02 CN01

131

1
2

CN309

Indoor

Non polarity cable

Non polarity cable

Indoor unit

control

P.C.board

CN041

3

1 3

unit

Remote controller

Wiring diagram of indoor P.C. board

Indoor control

CN040(Blue)

1 2 3
1 2 3

A

Black Black

B

Black

White

Network connection terminal block

3
2
1

Network

3

P.C. board

2

CN02(Blue)

1

adapter

CN03(Red)

Indoor unit

Network Adapter

Remote
Controller

Terminal block
for connecting

remote controller

Indoor unit

Indoor
control

P.C.board

A BA B

P.C.board

1 2
1 2

GrayGray

X

Y

Indoor unit

Indoor
control

P.C.board

A B

CN01(White)

2 2
1 1

Indoor unit

CN300(Yellow)

1 3
1 3

Power
Supply
transformer

Indoor

control

P.C.board

A B

Reference

No.

4-6-2

19

[3] “1:1 model” connection interface

Model

name

Appearance Features

Place optional P.C. board in E-parts of indoor unit.

● Link adapter for “1:1 model” into VRF system
network

1:1 model :Super digital inverter

Digital inverter

Connection of cables

Central

control

devices

U3 U4

Adaptor

Indoor unit Indoor unit

Indoor

control

P.C.board

Indoor
control

P.C.board

A B A B

Indoor unit

Indoor

control

P.C.board

A B

Reference

No.

TCB-PCNT30TLE

1:1 model

connection

interface

Outdoor unit

Application

Central Remote
Controller
TCB-SC642TLE

Super MMS control wiring

Indoor units

Digital Inverter
Super Digital Inverter

Remote

controller

Wiring diagram of indoor P.C. board

Connecting

U3 U4

terminal block

BLU

BLU

1 2
1 2

CN40 (BIU)

adapter

CN51 (RED)

1 1
2 2
3 3
4 4
5 5

WHI
RED
RED
RED
RED

1 1
2 2
3 3
4 4
5 5

CN50 (WHI)

Indoor control

P.C.board

4-6-3

20

1-9 Application control for network (Tentative)

1-9-1 Touch screen controller system

Ethernet

connection RS-485

Touch Screen

Controller

Control Maximum 512 FCU

Maximum 4 Energy Monitoring

System Diagram

Intelligent Server Software

Intelligent Server

Maximum 4 Intelligent server

Relay Interface

TCS-Net Relay Interface

Maximum 8 Relay Interface

I/F

Control wiring

Control

wiring

Control

wiring

RS-485

Reference

No.

Local supply

1 pulse/ kWh
200-400 ms

Energy Meter Relay Interface

Maximum 3 Input & 1 Output

Fire alarm
Door Key Entry ON/OFF
Error code output

Model Name Model Name Specification
Touch Screen controller

(English version)

Intelligent Server

Devices

Intelligent Server Software
TCS-Net Relay Interface
Energy Monitoring Relay Interface
Digital I/O Relay Interface BMS-IFDD01E I/F for I/O signal

(1) Monitoring air-conditioners

(2) Operating of air-conditioners

(3) Schedule operation

(4) Alarm list display

Function

(5) Alarm record display

(6) Monthly report data extraction

(7) Energy monitoring data extraction

More I/O

I/F

Digital I/O Relay Interface

BMS-TP0640ACE
BMS-TP5120ACE
BMS-TP0640PWE
BMS-TP5120PWE
BMS-LSV2E
BMS-STCC01E
BMS-IFLSV1E
BMS-IFWH3E

Operation status can be seen according to a unit.

Unit All building, All tenants, Each tenant, Each area, Each air-conditioning system
Monitoring contents

Master / individual control can be performed according to a unit.

Operating contents ON/OFF, Operation setting operation mode, air volume,

frap position, setting temp., inhibited setting from remote location

Air-conditioners are operated according to set-up schedule / operation pattern.
Schedule

The present alarm contents are list-displayed.

The past alarm records are list-displayed.

Monthly report data is written in "Compact Flash". Monthly report can be created according to
a unit using monthly report software.

Power consumption data is written in "Compact Flash". Energy monitoring can be performed
according to a unit using energy monitoring software.

operation

Operation pattern Weekly pattern, special day pattern (4 pattern), No-work days pattern

Display contents Alarm contents, Unit number, Generated time

Display contents Alarm contents, Unit number, Generated time

Monthly report contents

Energy monitoring data Power consumption according to the power meter

Max 64 FCU , without electrical bill calculation
Max 512 FCU , without electrical bill calculation
Max 64 FCU , with electrical bill calculation
Max 512 FCU , with electrical bill calculation
Server in between Screen controller & control wiring
Installed to Intelligent Server
I/F in between Intelligent server & control wiring
I/F for Power Meter

Operation and alarm status, Setting status for each air-conditioning system

can be performed according to a unit.

The number of ON/OFF, Operating time, Results of energy monitoring

Maximum 8 Power Meter

4-6-3

Maximum 4 Digital I/O Relay Interface

21

1-9-2 LONWORKS

System diagram

LON Center

LON T alk

LON
Interfaces

TCB-

TCB­IFLN060

Super MMS

Remote controller

• • •

TCB-

"1:1 model"
connection interface

1

*

*1 TOSHIBA Digital Inverter System and Super Digital Inverter System

The LONWORKS interface shall be connected between a building
management computer and the Super HRM and Super MMS system.

[LONWORKS Gateway]

Model

Reference

No.

• LON Gateway

TCB-IFLN

****

• “1 : 1 model” connection
interface

TCB-PCNT30TLE



RAV-SM560KRT-E,



SM800KRT-E are not



available



<Indoor remote
controller>

• Wired remote controller

RBC-AMT21E

or

• Simple remote controller

4-7-2

RBC-AS21E

■■

■ Command

■■

• Op e r a t i o n : ON/OFF

• Mode : Cool/Heat/Fan

• T emperature setting

• Center/Local

■■

■ Monitor

■■

• Operation : ON/OFF

• Mode : Cool/Heat/Fan/failure

• T emperature setting

• Room temperature

• Center/Local

22

1-9-3 Windows based central controller

System diagram

Personal computer on site

Local server

Relay Interface

Super MMS

"1:1 model"

Remote controller

Energy monitoring relay interface

Digital I/O relay interface

connection interface

1

*

*1 TOSHIBA Digital Inverter System and Super Digital Inverter System
The local server shall be “Plug-in” into a customer’s personal computer.

Model

Reference

No.

• WINDOWS based
central controller

BMS-LSV

**

• TCS-Net Relay Interface

BMS-IFLSV1E

• Intelligent server

BMS-LSV2E
BMS-STC01E

• Energy Monitoring
Relay Interface

BMS-IFWH3E

• Digital I/O Relay
Interface

4-7-3

BMS-IFDD01E

• “1 : 1 model” connection
interface

TCB-PCNT30TLE



RAV-SM560KRT-E,



SM800KRT-E are not



available



<Indoor remote
controller>

• Wired remote controller

RBC-AMT21E

• Simple remote controller

RBC-AS21E

1-9-4 BACnet

System diagram

BAC net center

Local server

TCS-Net
Relay Interface

*1 TOSHIBA Digital Inverter System and Super Digital Inverter System
The local server shall be connected under the BACnet network, and shall

be connected the Super HRM and Super MMS system through the
interface.

TCB-

Super MMS

Remote controller

"1:1 model"
connection interface

1

*

Model

Reference

No.

• BACnet local server

BMS-LSV

******

• TCS-Net Relay Interface

BMS-IFLSV1E

• “1 : 1 model” connection
interface

TCB-PCNT30TLE



RAV-SM560KRT-E,



SM800KRT-E are not



available



4-7-4

<Indoor remote
controller>

• Wired remote controller

RBC-AMT21E

• Simple remote controller

RBC-AS21E

(Note) For “1-9-1” to “1-9-4”, details of specification were not available at the time of publication. For further information

(set up, adjustment), consult the sales subsidiary.

23

2

SYSTEM WIRING DIAGRAM

AND

CONTROL WIRING METHOD

2-1 Applicable model and connectable units
2-2 System wiring diagram

2-2-1 For VRF system only

2-2-2 For combined system with “1:1model”
2-3 Design of control wiring
2-4 Earth method of shield wiring

2-4-1 For VRF system only

2-4-2 For combined system with “1:1model”
2-5 General requirement for control wiring

24

2-1 Applicable model and connectable units

1) Applicable model

• VRF system ............... Super modular multi system (Super MMS)

Super heat recovery multi system (Super HRM)

• 1:1 model .................. Super digital inverter, Digital inverter

2) The number of connectable units
[1] For only VRF system

Connected unit No. of units Note

1

2

3

4

5

* Follower indoor unit in a group control must be counted as one indoor unit.

Outdoor unit

(Header unit)

Outdoor unit

(Follower unit)

Indoor unit

Group control for

indoor units

Central control

device

[2] For combined system with Digital Inverter / Super Digital Inverter

Up to 16 units

Up to 3 units

Up to 64 units

Up to 8 units

Up to 10 units

In the same refrigerant system

• Max 64 units in case of group control*

• Max. 48 units for one refrigerant system

• Central remote controller

Connected unit No. of units Note

1

2

3

4

5

* Max. 64 refrigerant system can be controlled for total number of VRF system and 1:1 model.

(However, for VRF system, up to 16 refrigerant system can be connectable.)

* “1:1 model” connection interface is connected to the indoor unit of 1:1 model.

Outdoor unit

(Header unit for

VRF system)

Outdoor unit

(Follower unit for

VRF system)

Indoor unit

Group control for

indoor units

Central control

device

Up to 16 units

Up to 3 units

Up to 64 units

Up to 8 units

Up to 10 units

In the same refrigerant system

• Max. 64 units for total number of indoor units for both system.
* For 1:1 model, follower indoor units of twin control and group

control must not be counted.

* For VRF system, Max. 48 indoor units in one refrigerant

system.

• Central remote controller

25

Refrigerant

System 4

U4
U3

U2 U5U6
U1

Unit

Header

U2
U1

B
A

Remote

Controller

Refrigerant

System 3

Refrigerant

System 2

Central control wiring

(Max.16 units can be connectable)

Note [2]

U2
U1U1U2

B

Unit

Header

U4
U3

U2 U5U6

Note [2]

Control wiring

Between indoor

and outdoor units

U1U2

B
A A B A

(Max. 8 units)

Group control operation

U1

Unit

Follower

B
A

U2

Unit

Follower

U1

U2

B
A

Max. 64 indoor units for all refrigerant circuits

U1

Control wiring between outdoor units

(Max. 4 units can be connected.)

Unit

Follower

U2

B
A

U1

Note [1]

Unit

Header

Unit

U3U4 U3U4 U3U4 U3U4 U3U4

Refrigerant

System 1

Note [4] Note [3]

U2

U4

U1

U3

Central Control

Device

U2

U4

U1

U3

Central Control

2-2 System wiring diagram

2-2-1 For VRF system only

Device

Max. 10 central

control devices

Header

U2 U5U6 U1U2 U5U6 U1U2 U5U6 U1U2 U5U6 U1U2 U5U6
U1

Outdoor Unit

Central

Device

Control

U2
U1

26

U4
U3

U2
U1

U2
U1

Indoor Unit

Note [5]

B
A

B
A

Remote

controller

Wiring

Max. 48 indoor units can be connected

in one refrigerant system

Remote controller Remote controller

(Outdoor unit to which control wiring between indoor and outdoor unit is connected becomes the header

Remote

Controller

outdoor unit automatically.)

[2]Don’t connect control wiring between indoor and outdoor units to other refrigerant system.

[3]Connect central control wiring to the header outdoor unit.

Note) [1]Don’t connect control wiring between indoor and outdoor units to several outdoor units.

[4]Connect central control devices to central control wiring.

[5]Central control devices can be also connected to control wiring between indoor and outdoor units.

B
A

Follower

unit

Header

unit

123

123

U3 U4

U2

B
A

AB

Remote

controller

Note [4] [5]

123

Refrigerant

System 5

Digital Inverter)

Refrigerant

“1:1 model” (Super digital Inverter,

System 4

123

U1

connection

Refrigerant

System 3

Header

unit

U4
U3

U2 U6
U1 U5

”

1:1 model

interface (TCB-PCNT30TLE)

“

Control wiring

between indoor

and outdoor units

U2
U1

U2
U1

B
A

B
A

(Max. 8 units)

Group control operation

Remote controller

VRF system

Refrigerant

System 2

Refrigerant

System 1

Central Control

U4
U3

U2 U6
U1 U5

U4
U3

Central control wiring : Max 64 refrigerant system for both VRF system and 1:1 model.

Max 16 refrigerant system for VRF system.

Follower unit Follower unit

U2 U6
U1 U5

U4
U3

U2 U6
U1 U5

U4

Note [6] Note [3]

U3

U2 U6
U1 U5

Unit

Header

Device

U2
U1

U4
U3

Outdoor Unit

Note [2]

Control wiring between outdoor units

(Max. 4 units can be connected.)

Note [1]Note [2]

U2

U4

U1

U3

Device

Central

Control

B
A

U2
U1

B
A

U2
U1

B
A

U2
U1

B
A

U2
U1

B
A

U2
U1

Remote

Indoor Unit

Remote controller

Remote

Controller

controller

Wiring

t count follower indoor units of group control and twin control of 1:1 model.)

,

Max 48 indoor units can be connected.

Max. 64 indoor units for all refrigerant systems (Don

(Outdoor unit to which control wiring between indoor and outdoor units is connected becomes the header outdoor unit

automatically.)

[2] Don’t connect control wiring between indoor and outdoor units to other refrigerant system.

[3] Connect central control wiring to the header outdoor unit.

[4] When “1:1 model” is controlled by central control devices, “1:1 model” connection interface is necessary.

[5] In case of twin control on 1:1 model, connect “1:1 model” connection interface to the header indoor unit.

[6] Connect central control devices to central control wiring.

[7] Central control devices can be also connected to control wiring between indoor and outdoor units.

Note) [1] Don’t connect control wiring between indoor and outdoor units to several outdoor units.

* In case of 1:1 model, address re-setup is needed from wired remote controller. (For details, refer to “3-2-10”).

U2

U4

U1

U3

Central Control

Device

2-2-2 For combined system with “1:1 model”

Note [7]

Max. 10 Central

control devices

27

”

1:1 model

“

(Super digital Inverter,

Digital Inverter)

2

~ 2.0mm

2

Wiring 2-core, non-polarity

Type Shield wire

Size 1.25mm

Control wiring between outdoor units (L5)

Length Up to 100m (L5)

Follower

Header

unit

unit

U4
U3

U4
U3

123

U2 U6
U1 U5

U2 U6
U1 U5

L3

B
A

123

U3 U4

Remote controller

B
A

U2
U1

B

U2

L6

U1

B
AA

U2
U1

L7

(TCB-PCNT30TLE)

1:1 model connection interface

Remote controller

U4

Follower

unit

U3

U2 U6
U1 U5

B
A

U2

U4

Follower

unit

U3

U2 U6

L5

L2

unit

U4
U3

U1 U5

U2 U6

• Outdoor-outdoor / indoor-indoor / outdoor-indoor control wiring, Central control wiring.

1. All control wiring is 2-core and non-polarity wire.

2. Be sure to use shield wire for the following wiring to prevent noise trouble.

L4

Follower

U1 U5

VRF system

Header

unit

U4
U3

Header

unit

U4
U3

U2 U6
U1 U5

U2 U6
U1 U5

Wiring 2-core, non-polarity

Control wiring between indoor and outdoor units (L1,L2,L3),

Central control wiring (L4)

: Up to 1000m

2

: Up to 2000m (*1)

2

Note (1) : Total of control wiring length for all refrigerant systems

( L1 + L2 + L3 + L4 )

Type Shield wire

Size 1.25mm

Length 2.0mm

U1

U2
U1

U2
U1

U2
U1

U1U2

B
A

B
A

B
A

B
A

Remote controllerRemote controller

2

L1

2-3 Design of control wiring

Central Control

Device

U2
U1

U4
U3

Outdoor unit

28

Indoor unit

~ 2.0mm

2

Up 400m when wireless remote controller exists in a group control.

Up to 200m total length of control wiring between indoor units ( L6 )

Wire 2-core, non-polarity

Size 0.5mm

Remote controller wiring (L6,L7)

Length Up to 500m ( L6 + L7 )

Note [2]

U3U4

U1U2 U5U6

Note [1] Note [1]

U1U2

U1U2

U1U2

AB

Remote controllerRemote controllerRemote controllerRemote controller

AB

AB

Note [1]

Central control wiring

U3U4

U3U4

U3U4

U3U4

Follower unit Follower unit Follower unit

U3U4

U1U2U5U6

U1U2U5U6

U1U2U5U6

U1U2 U5U6

U1U2 U5U6

Control wiring

between

outdoor units

Note [1]

Note [1]

Note [2]

U1U2

U1U2

U1U2

U1U2

U1U2

AB

AB

AB

AB

AB

Header

unit

Header

unit

Note [2]

U3U4

U1U2 U5U6

(Open)

U2

U4

U1

U2

Central control

device

2-4 Earth method of shield wiring

2-4-1 For VRF system only

Outdoor unit

Central control

device

29

Note [1]

U2

U4

U1

U3

Control wiring

between

indoor and

outdoor units

AB

U1U2

Indoor unit

which are connected to both indoor and outdoor units.

the functional grounding at only one end of central control wiring. (Leave the other end of the wire at its final

termination as an open wire.)

[2]For the shield wires which are connected between the central remote controller and the outdoor units, perform

Note) [1]Be sure to close (connect) the end of shield wires, and perform the functional grounding for the end of wires

Note [2]

U3U4

U1U2 U5U6

Header

unit

U2
U1

AB

VRF

system

Central control wiring

U3U4

U3U4

U1U2U5U6

U1U2U5U6

Control wiring

123

between

outdoor units

Note [1]

Note [1]

Note [1] Note [1]

AB

123

1:1 model connection

interface

(TCB-PCNT30TLE)

AB

U1U2

AB

U1U2

( Super digital inverter,

Digital inverter )

Note [2]

U2

U4

U1

U3

Central Control

Device

2-4-2 For combined system with “1:1 model”

Note [1]

(Open)

U3U4

U1U2U5U6

Follower unit Follower unit Follower unit

U3U4

U1U2 U5U6

Header

unit

Header

U3U4

U1U2 U5U6

Outdoor unit

unit

U2
U1

Central Control

Device

Note [1]

U4
U3

30

Control wiring

between

indoor and

outdoor units

AB

U1U2

AB

U1U2

AB

U1U2 U3U4

Indoor unit

VRF system 1:1 model

Remote controllerRemote controller

which are connected to both indoor and outdoor units.

the functional grounding at only one end of central control wiring. (Leave the other end of the wire at its final

termination as an open wire.)

[2]For the shield wires which are connected between the central remote controller and the outdoor units, perform

Note) [1]Be sure to close (connect) the end of shield wires, and perform the functional grounding for the end of wires