Outdoor Fan Control - Toshiba HWS-802XWHM3-E Service Manual

Item
8-4.

5) 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
indoor side (Hydro unit) control part.
* 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]
802H-E
1102,
1402H-E
802H-E
1102,
1402H-E
5-1) 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 temperature.
TL [°C]
58
55
38
35
HWS-802H-E
Temperature range
38°C
29°C TO < 38°C
15°C TO < 29°C
5°C TO < 15°C
0°C TO < 5°C
-4°C
TO < -4°C
TO abnormal
HWS-1102H-E, 1402H-E
Temperature range
38°C
29°C TO < 38°C
15°C TO < 29°C
5°C TO < 15°C
0°C TO < 5°C
-4°C
TO < -4°C
TO abnormal
Operation flow and applicable data, etc.
W1 W2
200 230
Upper 200 240
Lower 200 200
W9 WA
520 570
Upper 530 610
Lower 550 630
WE tap
+ 1 tap/20 secs
(Up to the maximum number of rotation for each zone)
Number of rotation hold
- 1 tap/20 secs
(Up to the minimum number of rotation for each zone)
Less than 20 Hz
Minimum Maximum
TO W6 WC
W5 WB
W4 W8
W3 W6
W2 W4
TO < 0°C W2 W3
OFF OFF
OFF WC
Less than 20 Hz
Minimum Maximum
TO W6 WC
W5 WB
W4 W8
W3 W6
W2 W4
TO < 0°C W2 W3
W1 W2
W1 WC
W3 W4 W5 W6
260 300 340 380
240 260 320 380
200 280 360 400
WB WC WD WE
600 630 670 710
640 660 720 780
660 700 740 820
20 Hz or more to less
than 45 Hz
Minimum Maximum Minimum
W8 WE
W7 WD
W6 WA
W5 W8
W4 W6
W3 W5
OFF W2
OFF WE
20 Hz or more to less
than 45 Hz
Minimum Maximum Minimum
W8 WC
WC
W7
(WB for 1102)
W6 WA
W5 W8
W4 W6
W3 W5
W1 W4
W1 WC
59
W7 W8
420 460
480 500
500 520
WF
740
890
910
45 Hz or more
Maximum
WA WE
W9 WD
W8 WC
W7 WA
W5 W8
W4 W6
OFF W3
OFF WE
45 Hz or more
Maximum
WA WD
W9 WC
W8 WC
W7 WA
W5 W8
W4 W6
W2 W6
W2 WD