Service Function Explanation - Toyotomi TAN-A70IV Service Manual

EMERGENCY AND TEST OPERATION
Emergency Operation
Use this operation only when the remote controller is out of order or lost.
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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
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the condition where the room temperature is less than 16°C.
Continue to press the test operation switch for more than 5 seconds.
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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.
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HOW TO RELEASE EMERGENCY AND TEST OPERATION
In case of releasing during those operations, you can either push emergency operation switch once more or
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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
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automatically.
INTERFERENCE PREVENTION OF SIGNALS FROM THE REMOTE CONTROLLER
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
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Indoor unit side
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SERVICE FUNCTION EXPLANATION

Designated
Timer mode
temperature
26°C CONTINUOUS
23°C CONTINUOUS
: Have "J1" on the PC board short-circuited by soldering.
: Cut "R13" on the PC board.
Air flow
AUTOMATIC
AUTOMATIC
– 5 –
Beep
Twice beep
J1 J1
Soldering