6-2
6. Test operation
6.1
Check items related to manual operation
Note
Check the following items related to manual operation for all the pumps.
(1) Select “Manual” with the
㻌 㻌
switch.
(2) Press “MANUAL” switch
# n
Manual
of the pump to be operated (pump No. should be indicated instead of “n”.),
and then press the cursor switch
. While gradually increasing the operation frequency, make sure
that if the following does not have problems.
c
Installation and piping condition (if water leakage or abnormal vibration, etc. is not caused.)
d
Pump rotating direction
Check the external fan of the motor. It must be rotated in a clockwise direction as viewed
from the motor side.
e
Priming condition (if you hear water flowing or not)
(3) While confirming that the pump is running properly, gradually open the sluice valve of the test pipe until air
is completely removed from the pump.
Warning
Do not run the pump continuously for over one minute while the sluice
valve on the discharge line is shut (zero-discharge operation).
Otherwise, the temperature and pressure will increase inside the
pump, which may damage the pump and/or cause steam to blow off.
(4) After air has been completely removed, shut the sluice valve of the test pipe.
(5) Press the “Manual” switch of the running pump to stop the pump.
Switches to operate
For pump #1 operation
ȷȷȷ
Confirm
# 1
Manual
1
1
For pump #2 operation
ȷȷȷ
Back
# 2
Manual
2
2
For pump #3 operation
ȷȷȷ
# 3
Manual
3
3
For pump #4 operation
ȷȷȷ
# 4
Manual
4
4
For pump #5 operation
ȷȷȷ
# 5
Manual
5
5
Operation
select
