Toshiba HWT-602S21SM3W-E(TR) Service Manual page 102

Item
7-4. 4) Outdoor fan control
Outdoor unit
The outdoor side control part controls the number of fan motor rotations by receiving an operation instruction from the
control
Hydro side (Hydro unit) control part.
For sensing the true outside temperature, fan is operated without compressor operation.
* Although the fan motor is a DC motor, which has non-step variable numbers of rotations, it is limited to some steps for convenience of
control.
The number of fan tap rotation allocation [rpm]
Single phase
outdoor unit
401, 601
801, 1101
1401
3 phase
outdoor unit
801, 1101, 1401
4-1) Cooling fan control
• The TL sensor, TO sensor and operation frequency control the outdoor fan. The control is performed by 1 tap of
the DC fan control (14 taps).
• For 60 seconds after the start, the maximum fan tap for each zone that is shown in the following table is fixed. After
that, the fan is controlled according to the TL sensor (401, 601), TG (801,1101,1401). (TG: temperature converted
from PD)
Single phase outdoor unit 401, 601
TL [ °C]
56
53
+ 1 tap / 20 secs
(Up to the maximum number of rotation for each zone)
38
Number of rotation hold
35
- 1 tap / 20 secs
(Up to the minimum number of rotation for each zone)
Temperature range
29°C ≤ TO < 38°C
15°C ≤ TO < 29°C
5°C ≤ TO < 15°C
Single phase outdoor unit 801, 1101
TG [°C]
58
55
+ 1 tap / 20 secs
(Up to the maximum number of rotation for each zone)
38
Number of rotation hold
35
Temperature range
29°C ≤ TO < 38°C
15°C ≤ TO < 29°C
5°C ≤ TO < 15°C
Operation flow and applicable data, etc.
W1 W2 W3
240 320 320
200 200 200
200 200 200
W1 W2 W3
200 200 200
WF tap
Less than 20 Hz
Minimum Maximum
38°C ≤ TO W6
W5
W4
W3
WF tap
- 1 tap / 20 secs
(Up to the minimum number of rotation for each zone)
Less than 20 Hz
Minimum Maximum
38°C ≤ TO W6
W5
W4
W3
W4 W5 W6 W7 W8
390 400 470 510 550
230 260 290 330 360
200 230 290 370 450
W4 W5 W6 W7 W8
200 230 290 370 450
20 Hz or more to less
than 45 Hz
Minimum Maximum
WC W8 WF
WB W7 WD
W8 W6 WA
W6 W5 W8
20 Hz or more to less
than 45 Hz
Minimum Maximum
WC W8 WF
WB W7 WD
W8 W6 WA
W6 W5 W8
101
W9 WA WB WC WD
560 570 570 650 700
410 450 480 500 540
490 550 600 660 720
W9 WA WB WC WD
490 550 600 660 720
45 Hz or more
Minimum Maximum
WA WF
W9 WD
W8 WC
W7 WA
45 Hz or more
Minimum Maximum
WA WF
W9 WD
W8 WC
W7 WA
WE WF
750 830
570 600
760 800
WE WF
760 800