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2) Flooded suction systems should have gate valves installed on suction and discharge pipes
for maintenance, however, the suction gate valve should be no closer than five times the suction
pipe diameter as described in this section.
3) Use a check valve in the discharge line when using this pump for any application where there
is significant height to the plumbing after the pump.
4) Be sure to install check valves when plumbing in parallel with another pump. This helps
prevent reverse rotation of the impeller and motor.
4.4 Check before initial startup
1) Check whether pump shaft rotates freely;
2) Check whether power supply voltage and frequency conform to the nameplate;
3) Facing fan blade, direction of motor rotation is clockwise;
4) It is forbidden to run pump without water.
5. SETTING & OPERATION
5.1 Interface
Manual Mode
Timer Mode
Backwash Mode
4
Description
On/off
Lock/Backwash:
When the screen is locked, press >3
seconds to unlock the screen;
When the screen is unlocked, press it
for backwash mode.
Up: Increase value(capacity& time)
Down: Decrease value(capacity& time)
Timer: Switching from manual to Timer
mode
Capacity：40~100%
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