nIndoor unit power-ON sequence

Power ON

•The unit without power feed waits entirely → Waiting status is released by system start

•Reboot when power is fed on the way

<Automatic address judgment>

<By indoor unit

which receives power feed from outdoor unit>

Not normal

NO

Gr construction check

Normal

∗Gr normal

1)There is no duplicated indoor unit address.

2)There is no invalid indoor unit address.

3)Individual unit and header / follower units are not intermingled.

4)Only a unit for individual.

5)Header indoor unit and 1 or more follower units for Gr.

3 minutes elapse

YES

System start

<Initial communication>

Automatic address starts.

(Approx. 1 minute up to finish)

Outdoor model distinction (10 seconds) (Indoor unit)

 

<Cautions at test run>

 

 

Twin header/follower distinction (Indoor unit)

 

•

Power supply/Indoor/Outdoor serial and Gr wiring: OK

 

Gr construction, louver information (Remote controller)

 

 

 

•

Powers of all indoor units are turned on within 3 minutes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

Reception time for remote controller operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(After power supply was turned on)

 

 

 

 

 

 

 

 

1) When address is OK : Approx. 50 seconds

 

 

 

 

 

 

 

 

2) In AUTO address

: Approx. 4 to 5 minutes

 

 

Remote controller operation is available.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Approx. 50 seconds after power-ON)

 

 

 

 

 

<Usual regular communication>

Regular communication between indoor units (Every 30 seconds) (Header / Follower)

 

(Repetition)

Regular communication of the identical piping system (Every 30 seconds)

 

(Twin header / follower) (When the above status changes, immediately communicates.)

 

 

 

 

 

 

 

 

 

 

•In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot receive regular communication from the header unit and regular communication on identical pipe within 120 seconds after power was turned on, it reboots (system reset).

→The operation starts from judgment of automatic address (Gr construction check) again.

(If the address of the header unit was determined in the previous time, the power fed to the header unit and reboot works, the header unit may change though the indoor unit line address is not changed.)

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Toshiba CONCEALED DUCK TYPE Indoor unit power-ON sequence, Initial communication, Usual regular communication
Page 76 Page 78

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.

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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.

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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.
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