Toshiba RAV-SM1403AT-E1 service manual Service switch setting

9-3-2. Various settings on outdoor unit (Existing piping, power save, cooling-only, etc.)

(1) Service switch setting

Various settings are available by setting service switches.

[Operating method]

1)Check LED display is the initial status. If it is not so, set the initial status.

2)Push and hold SW800 for 5 seconds or more and then check D804 flashes slowly.

3)Push SW800 several times and then stop it at the LED display of function item to be set up.

Function		LED display					Control contents
Existing pipes						When the existing piping uses Ø19.1 pipe, this function is validated.
	D800	D801	D802	D803	D804
setting						In this case, the heating capacity may drop due to outside temp. and
						indoor temp. in heating time.
Power save	D800	D801	D802	D803	D804	This function validates the power save function. This function lowers
setting						the compressor frequency. In this case, the Max. capacity drops
						(Approx. –10%)
Snow-break	D800	D801	D802	D803	D804	This function validates the control to prevent occurrence of motor
fan control						lock by the accumulated snow entered from clearance of the fan
						guard or heat exchanger into blast route. Even when the compressor
						stops, the outdoor fan is operated with W3 when the outside
						temperature is under 7˚C.
Max. frequency	D800	D801	D802	D803	D804	This function is validated if the max. value of compressor frequency
change						is required to lower. It lowers the max. frequency in cooling/heating
						time. In this case, the max. capacity lowers.
							Max. compressor frequency (rps)
							Model	SM110		SM140
								Cool	Heat	Cool	Heat
							Standard status	54.0	54.6	65.4	73.2
							When setting is valid	48.6	48.6	65.4	65.4

: ON, : OFF, : Rapid flashing (5 times/second)

4)Push SW801 so that D805 will flash rapidly.

5)Push and hold SW801 for 5 seconds or more. D804 changes to slow flashing, D805 changes to lighting and then various settings are validated.

6)When you want to continue the settings, moreover repeat items from 3) to 5).

7)To invalidate various settings, execute items 1) to 3), push SW801 and then turn off D805.

8)Push and hold SW801 for 5 seconds or more. D804 changes to slow flashing, D805 is turned off and then various settings are invalidated.

*If an unknown point generated on the way of the operation, push and hold SW800 and SW801 for 5 seconds or more simultaneously. You can return to the item (1).

Confirmation method of various settings

You can confirm that various settings are validated.

1)Check LED displays are in the initial status. If it are not so, return them to the initial status.

2)Push and hold SW800 for 5 seconds or more. D804 changes to slow flashing.

3)Push SW800 several times and then stop it at the point where LED display (D800 to D804) to be checked. If the setting became valid, D804 and D805 flash rapidly. (When the setup was invalid, D804 flashes rapidly and D805 goes off.)

4)Push SW800 and SW801 for 5 seconds or more simultaneously to return LED display to the initial status.

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