5-2
(6) Loosen the air vent valve to discharge the air from the pump. At the same time, manually turn the pump to
discharge the air from the impeller completely.
When the water starts running over and the air feeding stops, priming of water is completed.
Caution
Never operate the pump without priming water.
It may cause seizure to the sliding part inside of the pump.
5.2
Turning on the power
Danger
After turning on the power, do not touch any parts other than those
mentioned below that are required for operation. Otherwise, it may
lead to an electric shock.
Warning
Do not operate the control panel with a wet hand. Otherwise, it may
lead to an electric shock and/or a short circuit.
(1)
Open the cover of the control panel.
(2)
Turn on the main power of the panel board.
(3)
Turn on the ground fault interrupter inside the control panel.
(4)
Turn on the operation power switch on the control board.
(5)
Check that the pilot lamp on the control board is turned on.
(6)
At that time, the initial set values and other information are shown on the display of the panel, in the
following order:
c
Program version
When the power is supplied to the board, the system shows the version of the installed control program
twice.
Note that the program version is subject to change without notice.
d
Initial check monitor
When the power is turned on, the system checks its status. If no abnormal condition is detected, the
flashing
message appears on the display of the panel for about 2 seconds. If any abnormal
condition is detected, the system generates the corresponding alarm.
e
Total head
The total head appears on the display.
e.g. Total head: 29 [m·H
2
O]
f
Minimum sustained head
The minimum sustained head appears on the display.
e.g. Minimum sustained head: 25 [m·H
2
O]
g
Indication in normal mode
On the display, the pressure inside the discharge
piping is indicated as the head.
e.g. Pressure in discharge piping:
27 [m·H
2
O]
(7) Close the cover of the control panel.
Fig.5-2 Operation power switch
and pilot lamp
Pilot lamp
Control
board
Operation
power switch
ON
OFF
Upper right portion of
the Control panel
