Service Function Explanation - Toyotomi TA3-A80GWI Service Manual

Room air conditioner

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Table of Contents

EMERGENCY AND TEST OPERATION

Emergency Operation

• Use this operation only when the remote controller is out of order or lost.

• When the emergency operation switch is pressed, beep starts once, which

means the start of this operation.

• In this operation, the system automatically selects the operation modes, cooling

(or heating when available) according to the room temperature, as follows.

Operation

Temperature

mode

ABOVE 23°C

COOLING

BELOW 23°C

HEATING

• It is not possible to operate in dry mode.

Test Operation

Test operation switch is same as emergency one.

• Use this operation only for testing the performance of the machine in the condition

where the room temperature is less than 16°C.

• Continue to press the test operation switch for more than 5 seconds.

After you hear twice beep, release your finger from the switch: the cooling

operation starts with the air flow speed "HI."

• If the test operation switch is pressed more than 10 seconds, it doesn't work.

• After 30 minutes, test operation ends automatically.

HOW TO RELEASE EMERGENCY AND TEST OPERATION

• In case of releasing during those operations, you can either push emergency operation switch once more or

apply operation using remote control.

You will hear a beep sound and emergency/ test operation is released.

• If you release the operation by remote control, operation will continue as setting of the remote control

automatically.

INTERFERENCE PREVENTION OF SIGNALS FROM THE REMOTE CONTROLLERS

When two indoor units used in the same room, interference of the signals may happen. To avoid this, alternative

signal model B can be selected by the following. (Ex-factory setting is mode A)

• Remote controller side

• Indoor unit side

(Each Operations Details)

Ex-factory setting (Mode A)

Have "J1"on the PC

board short-circuited

by soldering (Mode B)