Outline of judgment

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method.

Method to judge the erroneous position by display panel of the indoor unit (lamp display of the wireless receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

: Go off,

: Go on,

: Flash (0.5 sec.)

Lamp indication

Check code

Cause of trouble occurrence

Operation

Timer

Ready

—

Power supply OFF or miswiring between lamp indication unit and indoor unit

No indication at all

E01

Receiving error ⎫

⎫

⎬ Receiving unit

⎪

Miswiring or wire connection error

E02

Sending error ⎭

⎬

between receiving unit and indoor unit

⎪

E03

Communication stop

Operation

Timer

Ready

⎭

E08

Duplicated indoor unit No.

⎫

Setup error

⎬

Flash

E09

Duplicated master units of remote controller ⎭

E10

Communication error between CPUs on indoor unit P.C. board

E18

Wire connection error between indoor units, Indoor power OFF

(Communication stop between indoor header and follower)

Operation

Timer

Ready

E04

Miswiring between indoor unit and outdoor unit or connection erorr

(Communication stop between indoor and outdoor units)

Flash

Operation

Timer

Ready

P10

Overflow was detected.

⎫

⎪

⎬ Protective device of indoor unit worked.

P12

Indoor DC fan error

⎪

Alternate flash

⎭

P03

Outdoor unit discharge temp. error

⎫

Protective device of

∗1

⎬

P04

Outdoor high pressure system error

outdoor unit worked.

⎭

P05

Negative phase detection error

⎫

⎪

P07

Heat sink overheat error

Outdoor unit error

⎬

⎪

Operation

Timer

Ready

P15

Gas leak detection error

⎭

P19

4-way valve system error (Indoor or outdoor unit judged.)

P20

Outdoor unit high pressure protection

Alternate flash

P22

Outdoor unit: Outdoor unit error

⎫

⎬⎪

Protective device of

P26

Outdoor unit: Inverter Idc operation

∗1

⎪

outdoor unit worked.

P29

Outdoor unit: Position detection error

⎭

P31

Stopped because of error of other indoor unit in a group

(Check codes of E03/L03/L07/L08)

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 44 –

CONCEALED DUCK TYPE, CEILING TYPE specifications

Toshiba has long been a name associated with innovative and efficient HVAC solutions, and their Concealed Duck Type, Ceiling Type air conditioning units exemplify this legacy. These units are designed to provide exceptional comfort while seamlessly integrating into a variety of interior spaces.

One of the main features of the Toshiba Concealed Duck Type, Ceiling Type system is its discreet installation method. Unlike traditional wall-mounted units, this system is installed within the ceiling, allowing for an unobtrusive appearance. The result is a clean and modern aesthetic, ideal for residential and commercial settings where design is a priority. With only the supply and return grilles visible, the units maintain the integrity of the interior decor.

The technology employed in Toshiba's air conditioning systems revolves around energy efficiency and user comfort. The units are equipped with inverter technology, which allows for precise temperature control and reduces energy consumption. The inverter adjusts the compressor speed to meet the cooling or heating demand, ensuring not only optimal comfort but also reduced operational costs.

Another significant characteristic of the Toshiba Concealed Duck Type units is their quiet operation. Designed with sound-dampening features, they operate at low noise levels, making them suitable for environments where noise can be a concern, such as offices, hotels, or residential spaces.

Toshiba's advanced air filtration system further enhances indoor air quality. Integrated filters capture dust and allergens, creating a healthier indoor environment. This is particularly beneficial for individuals with allergies or respiratory concerns, as the system works to reduce airborne pollutants.

The units also offer flexible control options. With the availability of remote control or smart home integration, users can easily adjust settings to suit their preferences. Additionally, some models come with programmable timers, allowing for energy savings when the space is unoccupied.

Furthermore, these units are designed for reliability and ease of maintenance. Toshiba emphasizes durability in their construction, and the concealed installation not only enhances aesthetics but also protects the unit from potential damage. Routine maintenance can be performed efficiently, ensuring longevity and sustained performance.

In summary, Toshiba's Concealed Duck Type, Ceiling Type air conditioning units deliver a blend of innovative technology, energy efficiency, and contemporary design. With features like inverter technology, quiet operation, advanced air filtration, and flexible control options, they offer a compelling choice for those seeking comfort without compromising style. These units stand as a testament to Toshiba's commitment to quality and customer satisfaction in the HVAC industry.

Toshiba CEILING TYPE Outline of judgment, Lamp indication Check code Cause of trouble occurrence

Models: CONCEALED DUCK TYPE CEILING TYPE