Toshiba RAV-GM802ATW-E Installation Manual page 28

How to check the existing piping settings
You can check whether the existing piping settings are enabled.
1. Check that the LED displays are placed in their initial status. If not, place them in the initial status.
2. Hold down SW01 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 9)
3. Press SW01 four times to set the LED displays (D800 to D805) to the "LED displays for existing piping settings"
shown below. If the setting is enabled, D802 lights and D804 and D805 flash rapidly. (Fig. 10)
4. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial status.
(Fig. 9)
LED displays Indicated when step 3 Is taken
D800 D801 D802 D803 D804
: ON, : OFF, : Slow flashing
When restoring the factory defaults
To restore the factory defaults in situations such as when relocating the units, follow the steps below.
1. Check that the LED displays are placed in their initial status. If not, place them in the initial status.
2. Hold down SW01 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 11)
3. Push SW01 several times until the LED reaching to the "LED displays restored to factory defaults" shown below.
(Fig. 12)
(Fig. 11)
LED displays Indicated when step 2 Is taken
D800 D801 D802 D803 D804
: ON, : OFF, : Slow flashing
4. Hold down SW02 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 13)
5. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial status.
(Fig. 13)
LED displays Indicated when step 4 Is taken
D800 D801 D802 D803 D804
: ON, : OFF, : Slow flashing
53-EN
(Fig. 10)
LED displays for existing piping settings
D805 D800 D801 D802 D803
: ON, : OFF, : Rapid flashing
(Fig. 12)
LED displays restored to factory defaults
D805 D800 D801 D802 D803
: ON, : OFF, : Rapid flashing
D805
– 27 –
■ Snow guard fan control
Steps taken to enable snow guard fan control
1. Set the circuit breaker to the ON position to turn on the power.
2. Check that the LED displays are placed in their initial status. If not, place them in the initial status.
3. Hold down SW01 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 14)
4. Press SW01 twice to set the LED displays (D800 to D805) to the "LED displays for snow guard fan control"
shown below. (Fig. 15)
(Fig. 14)
D804 D805 LED displays indicated when step 3 is taken
D800 D801
: ON, : OFF, : Slow flashing
5. Press SW02 to set D805 to rapid flashing. (Each time SW02 is pressed, D805 is switched between rapid flashing
and OFF.) (Fig. 16)
6. Hold down SW02 for at least 5 seconds, and check that D804 flashes slowly and that D805 lights. (Fig. 17)
(Fig. 16)
LED displays indicated when step 5 is taken
D800 D801
D804 D805 : ON, : OFF,
7. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial status.
The snow guard fan control is now supported by taking the above steps. In this status, even when the compressor
is not in use but TO sensor is lower than 4˚C, outdoor unit fan will move with specified revolution to protect fan
motor.
* If there is any reason to doubt whether establishing support was successful in the course of this operation, hold
down SW01 and SW02 simultaneously for at least 5 seconds to return to the initial status, and then repeat the
setting steps.
(Fig. 15)
LED displays for snow guard fan control
D802 D803 D804 D805 D800
: ON, : OFF,
(Fig. 17)
LED displays indicated when step 6 is taken
D802 D803 D804 D805 D800
: Rapid flashing : ON, : OFF, : Slow flashing
D801 D802 D803 D804 D805
: Rapid flashing
D801 D802 D803 D804 D805
54-EN