7-2
7.2
Selecting a receiver tank
Select a receiver tank to be used with the
Tank
selector
switch on the operation panel.
For selecting a water tank and the circuits to be used, refer to Table 7-2(b).
Table 7-2 (a) Water Tank Selection
No.1
No.2
Com
mon
“No tank”
Select this mode when the control for the receiver tank is not used.
When this mode is selected, the electrode signal will be ignored, and
preventing dry operation will not be performed.
Solenoid valve operation cannot be selected since all the indicator lamps are
turned off.
No.1
No.2
Com
mon
“Tank No.1”
This mode is to select the water tank No.1.
When only one receiver tank is used, select this mode.
Also select this mode to clean the water tank No. 2 in the “Common” mode.
No.1
No.2
Com
mon
“Common”
Select this mode to operate 2 receiver tanks.
To select this mode, provide a communicating tube between the tanks to
make the water levels of both the tanks equal.
No.1
No.2
Com
mon
“Tank No.2”
This mode is to select the water tank No.2.
Select this mode when cleaning the water tank No. 1 in “Common” mode.
“No tank” is selected before shipment.
The system enables the setting one second after the indicator lamp comes on.
Table 7-2(b) Water tank selection and circuit used
Selected water tank
Water level electrode circuit
Solenoid valve
circuit
For alarm and dry-run
prevention
For solenoid valve
No. 1
1E0, 1E1, 1E2, 1E3, 1E4
1N1, 1N2
SVC-SV1
Common
1E0, 1E1, 1E2, 1E3, 1E4
1N1, 1N2
SVC-SV1
SVC-SV2
No. 2
2E0, 2E1, 2E2, 2E3, 2E4
2N1, 2N2
SVC-SV2
No tank
N/A
N/A
N/A
