5-2
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 setting 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.
Operation
power switch
Control board
Pilot lamp
Fig. 5-2-2 Operation power switch and pilot
lamp
(Motor output: 5.5, 7.5 kW)
Operation
power switch
Protective cover
Control board
Pilot lamp
Fig. 5-2-1 Operation power switch and pilot
lamp
(Motor output: up to 3.7 kW)
