Toshiba MMY-MAP0804FT8-E Installation Manual Download

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Address setting

On this unit, it is required to set the addresses of the indoor units before starting air conditioning.
Set the addresses following the steps below.

CAUTION

• Be sure to complete the electric wiring before setting the addresses.
• If you turn on the outdoor unit before turning on the indoor units, the CODE No. [E19] is indicated on the 7-

segment display on the interface P.C. board of the outdoor unit until the indoor units are turned on. This is not a
malfunction.

• It may take up to ten minutes (normally about five minutes) to address one refrigerant line automatically.
• Settings on the outdoor unit are required for automatic addressing. (Address setting is not started simply by

turning on the power.)

• Running the unit is not required for address setting.
• The addresses can be set manually.

REQUIREMENT

• High voltage parts exist in the electrical control box.

If you set addresses on an outdoor unit, operate the
unit through the access door shown on the illustration
on the right to avoid electric shock. Do not remove the
cover of electrical control box.

* After finishing operations, close the access door cover

and fix it with the screw.



Automatic address setting

Automatic addressing:

setting addresses using SW15 on the interface P.C. board on the header outdoor unit

Manual addressing:

setting addresses on the wired remote controller.

* When setting an address manually, the wired remote controller must temporarily be

paired with an indoor unit one-to-one. (when the system is organized for group

operation and no Remote controller)

No central control (single refrigerant line):

go to Address setting procedure 1

Central control of 2 or more refrigerant lines:

go to Address setting procedure 2

(Example)

When controlling a single refrigerant line

centrally

When controlling 2 or more refrigerant lines

centrally

Address setting

procedure

To procedure 1

To procedure 2

System wiring

diagram

Access

door cover

Fixing screw for the

access door cover

Cover of the electrical

control box

Outdoor

Indoor

Outdoor

Central

remote

controller

Central

remote

controller

Remote

controller

Remote

controller

Remote

controller

Outdoor

Indoor

Outdoor

Central

remote

controller

Remote

controller

Remote

controller

Remote

controller

◆

Address setting procedure 1

Turn on indoor units first, and then turn on outdoor units.

About one minute after turning the power on, confirm that the 7-segment display on the interface
P.C. board of the header outdoor unit indicates

Press SW 15 to start the automatic address setting.

(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

The 7-segment display indicates

After the indication,

starts flashing on the display.

When the flashing stops and

remain lit on the display, the setting is

complete.

Interface P.C. board on the header outdoor unit

REQUIREMENT

• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the group

before setting addresses.

• If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In that case,

the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the group address to
make one unit the header unit using wired remote controller.

(Example)

Controlling 2 or more refrigerant lines as a group

System wiring

diagram

U. 1. L08 (U. 1. flash)

Auto 1

→

Auto 2

→

Auto 3

U. 1. - - - (U. 1. flash)

U. 1. - - - (U. 1. light)