9 TROUBLESHOOTING

New check code

1.Difference between the new check code and the current system

The displaying method of the check code will change from this model onwards.

 

New check code

 

 

Used characters

Alphabet + Decimal notation, 2 digits

 

 

Characteristics of code classification

Many classification of communication/incorrect setup system

 

 

Block display

Communication/Incorrect setup (4-ways), Indoor protection, Outdoor protection,

Sensor, Compressor protection, etc.

 

 

 

10 MAINTENANCE

Prior to maintenance, ensure the power supply is turned off.

CAUTION

Do not handle the buttons with wet hands as this will cause the risk of electric shock.

Daily maintenance

Cleaning of air filter

 

 

 

 

 

CODE No.

 

 

 

 

 

1

If is displayed on the remote controller, maintenance

1,

 

 

 

 

 

2

to the air filter is required.

2

 

 

 

 

 

 

 

 

 

 

Clogging of the air filter decreases cooling/heating efficiency.

 

 

TEMP.

ON / OFF

 

 

 

 

 

33

Display on wired remote controller

•[] goes on.

•[UNIT No.] + Check code + Operation lamp (Green) flash

Display on sensor part of wireless remote controller

•Block display will show a combination of [] [] [] symbols.

Display on 7-segment in outdoor unit

•Unit No. and check code are displayed.

•In case of error the auxiliary code, check code and sub-code are displayed alternately.

 

 

 

 

Display

Classification

 

 

 

 

 

A

Unused

 

 

 

 

 

C

Central control system error

 

 

 

 

 

E

Communication system error

 

 

 

 

 

F

Each sensor error (Failure)

→

 

 

 

H

Compressor protective system error

 

 

 

 

 

 

 

 

J

Unused

 

 

 

 

 

 

L

Setup error, Other errors

 

 

 

 

 

 

P

Protective device operation

 

 

 

 

 

FILTER

 

 

 

 

 

 

 

 

3 After cleaning, push the RESET .

 

 

 

 

 

TIMER SET

FAN

MODE

 

display disappears.

 

 

 

 

 

TIME

SWING/FIX

VENT

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

FILTER

 

 

 

 

 

 

 

 

RESET TEST SET CL

UNIT

 

[4-way Air Discharge Cassette Type]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Open the air inlet grille.

4 Mount the air filter.

 

 

 

•

Slide the air inlet grille buttons to detach the air

5 Close the air inlet grille.

 

 

 

inlet grille from the main ceiling panel. Lower the

•

Close the air inlet grille, slide the button to locate

 

grille slowly while holding.

 

 

into the ceiling panel fixing securely.

 

2 Take out the air filter.

 

 

 

FILTER

 

 

 

6 Push the RESET .

 

 

 

•

Push the extrusion of the air filter away from the

 

 

 

•

display disappears.

 

 

 

 

grille and remove.

 

 

 

3 Cleaning with water or vacuum cleaner

 

 

 

 

 

 

 

5

•

If dirt is heavy, clean the air filter using tepid water

 

 

 

 

 

 

 

2.Special mention

•When the air conditioner stops and the error is cleared, the check code display on the remote controller will also disappear.

However, if the error continues after the unit has been stopped, the check code will immediately be displayed when the unit is restarted.

with a neutral detergent or just water.

3

• After cleaning with water, dry the air filter

2

sufficiently in a shaded place.

 

1

Air inlet grille

 

 

 

Strap to

Button

Air inlet grille

prevent falling

Push

 

 

Button

Air filter

 

1

Cleaning of air outlet flap

The air outlet flap can be removed to clean if necessary. 1 Remove the air outlet flap.

• Holding both ends of the air outlet flap, remove it by sagging the center downwards.

2

2 Clean the air outlet flap with water.

• If dirt is heavy, clean the air outlet flap using tepid water with neutral detergent or just water.

3 Mount the air outlet flap.

•First push in the one side, and insert the opposite side by sagging the center downwards.

Be careful to insert the flap in the correct direction.

Insert the flap with the printed mark facing upwards, and the arrow on the flap pointing in the outward direction.

2Insert in the flap sagging down the center downward.

1 Insert

3

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Image 33
Toshiba MMU-AP0071MH, MMU-AP0181MH Maintenance, New check code, Daily maintenance, Way Air Discharge Cassette Type
Page 32 Page 34

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

The Toshiba MMU-AP series, consisting of models MMU-AP0121MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, and MMU-AP0181MH, represents a significant advancement in the realm of power management and energy efficiency for a variety of applications. These modules are designed to optimize performance while ensuring minimal energy consumption, making them suitable for both commercial and industrial uses.

One of the standout features of the MMU-AP series is its intelligent power management technology. This feature allows for adaptive energy distribution based on real-time demands. By leveraging precise control algorithms, the modules can adjust their output to match the specific requirements of connected devices, ultimately leading to reduced power loss and increased efficiency. This adaptability not only benefits end-users by lowering operational costs but also contributes to a greener environment by minimizing waste.

The versatility of the MMU-AP series is evident in its wide range of operational capabilities. These power modules are designed to work effectively in various voltage levels and load conditions. With input voltage ranges suitable for standard industrial environments, they can easily be integrated into existing systems, enhancing overall functionality without requiring extensive modifications.

Moreover, the compact design of the MMU-AP modules is another notable characteristic. Their size and light weight facilitate easier installation and integration into tight spaces, making them ideal for applications where real estate is a premium. This compact profile does not compromise performance, as these modules are engineered to deliver robust power output while maintaining thermal efficiency.

In terms of reliability, the MMU-AP series is built with high-grade components that withstand harsh operating conditions. With features such as over-voltage protection, short-circuit protection, and thermal shutdown capabilities, users can trust that their equipment would operate safely and efficiently, thereby extending the lifespan of both the power modules and the devices they serve.

Finally, Toshiba’s commitment to innovation ensures that the MMU-AP series incorporates cutting-edge technology. The series supports communication protocols that enable seamless integration with smart systems, paving the way for advanced monitoring and control functions. This levels up the user experience, providing insights into performance and diagnostics that are crucial for uptime and reliability in demanding environments.

In conclusion, the Toshiba MMU-AP series offers a blend of efficiency, adaptability, and advanced technology, making it a valuable asset for various industrial and commercial applications. Its intelligent design and robust features ensure that users can optimize energy use while maintaining high performance and reliability.
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