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)A master indoor unit and 1 or more sub indoor 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>

 

 

Gr construction, louver information (Remote controller)

 

•

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

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

 

 

Remote controller operation is available.

 

 

 

 

2) In AUTO address

: Approx. 4 to 5 minutes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Approx. 50 seconds after power-ON)

 

 

 

 

 

<Usual regular communication>

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

 

(Repetition)

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

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Toshiba RAV-SM2242DT-TR, RAV-SM2802DT-E, RAV-SM2802DT-TR service manual Indoor unit power-ON sequence, Power on
Page 60 Page 62

RAV-SM2802DT-TR, RAV-SM2242DT-TR, RAV-SM2802DT-E specifications

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