Toshiba Carrier RAV-SP180AT2-UL Service Manual page 39

3. Outdoor fan control
RAV- W1
SP240AT2-UL 200
RAV-
SP300AT2-UL Up
SP360AT2-UL
Down
SP420AT2-UL
3-1) Cooling fan control
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 (SP240: 15 taps,
SP300, SP360, SP400: 14 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.
<RAV-SP240AT2-UL>
Temp. range
100.4°F (38°C) ≤ TO
84.2°F (29°C) ≤ TO < 100.4°F (38°C)
59°F (15°C) ≤ TO < 84.2°F (29°C)
41°F (5°C) ≤ TO < 59°F (15°C)
32°F (0°C) ≤ TO < 41°F (5°C)
24.8°F (–4°C) ≤ TO < 32°F (0°C)
TO < 24.8°F (–4°C)
TO error
<RAV-SP300AT2-UL, RAV-SP360AT2-UL, RAV-SP420AT2-UL>
Temp. range
100.4°F (38°C) ≤ TO
84.2°F (29°C) ≤ TO < 100.4°F (38°C)
59°F (15°C) ≤ TO < 84.2°F (29°C)
41°F (5°C) ≤ TO < 59°F (15°C)
32°F (0°C) ≤ TO < 41°F (5°C)
24.8°F (–4°C) ≤ TO < 32°F (0°C)
TO < 24.8°F (–4°C)
TO error
Revolution frequency allocation of fan taps [rpm]
W2 W3 W4 W5
230 260 300 340
W1 W2 W3 W4
200 240 240 260
— — 200 280
Min.
W6
W5
W4
W3
W2
W2
OFF
OFF
Min.
W6
W5
W4
W3
W2
W2
W1
W1
W6 W7 W8 W9
380 420 460 520
W5 W6 W7 W8
320 380 480 500
360 400 500 520
TL
˚F (˚C)
136.4 (58)
131.0 (55)
100.4 (38)
95.0 (35)
20 Hz or lower
Max. Min.
WC W8
WB W7
W8 W6
W6 W5
W4 W4
W3 W3
OFF OFF
WC OFF
20 Hz or lower
Max. Min.
WC W8
WB W7
W8 W6
W6 W5
W4 W4
W3 W3
W2 W1
WC W1
– 39 –
Revised : Feb. 2010
WA WB WC WD
570 600 630 670
W9 WA WB WC
530 610 640 660
550 630 660 700
WE tap
+1 tap / 20 sec
Up to the maximum
revolution frequency of each zone
Revolution frequency hold
–1 tap / 20 sec
Up to the minimum
revolution frequency of each zone
20Hz to 45Hz 45Hz or higher
Max. Min.
WE WA
WD W9
WA W8
W8 W7
W6 W5
W5 W4
W2 OFF
WE OFF
20Hz to 45Hz 45Hz or higher
Max. Min.
WC WA
WC* W9
WA W8
W8 W7
W6 W5
W5 W4
W4 W2
WC W2
WE WF
710 740
WD WE
720 780
740 820
Max.
WE
WD
WC
WA
W8
W6
W3
WE
Max.
WE
WC
WC
WA
W8
W6
W6
WD
∗ : WB for SP300