Toshiba ESTIA HWS-1102H-E, Service Manual

Page: 122 / 168

121
Toshiba
16-3. Service support functions (LED indication, Switch operation method)
The following settings are available with dip switches.
(1) Overview
Using 3 dip switches (SW802, SW803, SW804) and 2 push-button switches (SW800, SW801) can make settings
available and confirm operations.
For operation
For display
Note: All the LEDs have no color when off.
Part number Specification Operation details
SW800 Press button switch This switch switches the indications of LED (D800 to D804) on the outdoor control board.
SW803 Dip switch
SW801 Press button switch This switch enables users to perform a special operation for maintenance and inspection.
SW804 Dip switch
SW802 Dip switch This switch performs initial settings. (See 8-4-6)
Part number Specification Operation details
D502
Amber LED Signal display (signals from the hydro unit) of communication between hydro unit and
outdoor unit (serial communication)
D503
Green LED Signal display (signals from the outdoor unit) of communication between hydro unit and
outdoor unit (serial communication)
D800 to D804
Yellow LED Abnormality indication
All OFF of SW803 or the lit status of any of D800 to D804 indicates that the outdoor
control unit detects an abnormality.
Setting SW803 to other than OFF shows details with LED indication.
D805
Green LED Energization indication
This LED lights when the outdoor unit is energized.
During a special operation with the SW801 or SW804 operation, this LED blinks.
1234
ON
1234
ON
1234
ON
D800
D801
D802
D803
D804
D805
SW804
SW801
SW800
SW803
LED indication switching switch
D503 (
Green LED
) ---
Serial signal (Outdoor to hydro)
D502 (
Amber
LED) ---
Serial signal (Hydro to Outdoor)
SW802 --- Initial settings switching
D800
(Yellow LED)
D801 (
Yellow LED
)
D802 (
Yellow LED
)
D803 (
Yellow LED
)
D804 (
Yellow LED
)
D805 ( Green LED ) --- Energization indication
Special operation switch (Operations
for maintenance and inspection)
Abnormality indication
and other indications
+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 121 Monday, October 5, 2009 2:09 PM