Toshiba RAV-SP804AT-E, RAV-SP804ATZG-E service manual Outdoor fan control, Cooling fan control SP56

3. Outdoor fan control

Revolution frequency allocation of fan taps [rpm]

	W1	W2	W3	W4	W5	W6	W7	W8	W9	WA	WB	WC	WD	WE	WF
SP56	200	250	300	400	480	500	520	560	640	670	700	750	800	880	980
SP80	200	230	260	300	340	380	420	460	520	570	600	630	670	710	740

3-1) Cooling fan control

<SP56>

•The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency. It is controlled by every 1 tap of DC fan control (15 taps).

‚Only for 60 seconds after start-up of operation, it is fixed by the maximum fan tap corresponded to the zone in the following table, and then the fan is controlled by temperature of TE sensor.

ƒWhen temperature of TD sensor became high sufficiently, it is controlled so that the fan revolution frequency will become higher ignoring TE sensor temperature.

TE [˚C]

+1 tap / 20 sec

Up to the maximum

revolution frequency of each zone

∗Operation with W1 in case of fan-OFF

32

Revolution frequency hold

29

–1 tap / 20 sec

Down to the minimum

revolution frequency of each zone

TD [˚C]
			Operation
85			with WF
80			Operation with
			the maximum tap
75			of each zone
65			Normal fan control
			by TE sensor
		20 Hz		20Hz			45Hz
Temp. range		or lower		to 45Hz			or higher
		Min.	Max.	Min.	Max.	Min.		Max.
38°C ≤ TO		W6	WB	W7	WE		W9	WF
28°C ≤	TO < 38°C	W5	WA	W6	WD		W8	WE
15°C ≤	TO < 28°C	W3	W7	W4	W9		W6	WB
5.5°C ≤	TO < 15°C	W2	W5	W3	W7		W5	W9
0°C ≤ TO < 5.5°C		W1	W3	W2	W5		W3	W7
–5°C ≤ TO < 0°C		W1	W2	W1	W3		W2	W4
TO < –5°C		OFF	OFF	OFF	OFF		W1	W3
TO error		W1	WB	W1	WE		W1	WF

<SP80>

•The outdoor fan is controlled by TL sensor, TO sensor and the operation frequency.

The outdoor fan is controlled by every 1 tap of DC fan control (15 taps).

‚Only for 60 seconds after the operation has started, the maximum fan tap corresponding to the zone in the following table is fixed and then the fan is controlled by temperature of TL sensor.

TL [˚C]

	WF tap
58
55
	+1 tap / 20 sec
	Up to the maximum
	revolution frequency of each zone
38	Revolution frequency hold
35
	–1 tap / 20 sec
	Down to the minimum
	revolution frequency of each zone

	20 Hz		20Hz		45Hz
Temp. range	or lower		to 45Hz		or higher
	Min.	Max.	Min.	Max.	Min.	Max.
38°C ≤ TO	W6	WC	W8	WE	WA	WE
29°C ≤ TO < 38°C	W5	WB	W7	WD	W9	WD
15°C ≤ TO < 29°C	W4	W8	W6	WA	W8	WC
5°C ≤ TO < 15°C	W3	W6	W5	W8	W7	WA
0°C ≤ TO < 5°C	W2	W4	W4	W6	W5	W8
–4°C ≤ TO < 0°C	W2	W3	W3	W5	W4	W6
TO < –4°C	OFF	OFF	OFF	W2	OFF	W3
TO error	OFF	WC	OFF	WE	OFF	WE

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