Maintenance And Trouble Shooting - Pentair PRIOX 250/8 Manual

GB
ROTATION DIRECTION TESTING THREE PHASE PUMPS
Water head and delivery are terribly effected by wrong rotation of shaft of pump motor.
Clock wise rotation is correct (upside view of pump).
When startin the pump motor will ungergo an anti-clock wise back-kick.
In this case test is positive; on contrary case, please disconnect pump from network and inverse two phases.
CONNECTIONS DIAGRAM PAGE 72, PICTURE 2
A) Single phase manual pump
B) Single phase automatic pump
C) Three phase pump
• START (green)
• RUN (red)
• COMMON (black)
• CAPACITOR
CHAPTER 5

MAINTENANCE AND TROUBLE SHOOTING

DANGER - ELECTRIC SHOCK RISK
Before doing any operation, make sure pump is disconnected from electric current network.
DANGER - ELECTRIC SHOCK RISK
The power cable must be replaced by qualified personnel only.
No maintenance is required when PRIOX range pumps operate in normal conditions.
Occasionally maintenance of liquid ends and replacement of impeller may be required.
FAULT
PUMP DOES NOT DELIVER,
MOTOR DOES NOT RUN
PUMP DOES NOT DELIVER,
MOTOR RUNS
PUMP DELIVERS REDUCED
WATER
INTERMITTENT WORKING
(SINGLE PHASE VERSION)
10
• SUPPLY CORD
• GROMMET
• PLUG
• YELLOW- GREEN
POSSIBLE CAUSE
1) No electric current supplying.
2) Incorrect plugging in.
3) Circuit-breaker come into operation.
4) Impeller blocked.
5) Motor or capacitor damaged.
1) Filter obstructed.
2) Non return valve blocke.
3) The air vent hole on the pump body may be clogged.
1) Filter partially obstructed.
2) Delivery pipe partially obstructed.
3) Impeller worn off.
4) Anticlockwise rotation (three phase version).
1) Solids obstruct impeller.
2) Too warm liquid.
3) Motor broken.
• WHITE
• LIGHT BLUE <LINE>
• BROWN <LINE>
• FLOAT SWITCH
REMEDY
-
Verify presence of electric current supply and plug in.
Reinforce circuit-breaker.
Please call electrician in case circuit-breaker comes again into
operation.
Remove obstacle.
Call dealer.
Clean filter.
Clean or replace valve.
Loose the nut that secures the stainless steel flap of the air vent
hole to the pump body; see drawing no.3 reference A.
Remove the stainless steel flap. Clear the hole of any old dirt.
Fit the protective flap back in.
Screw back in and tighten the nut.
Clean filter.
Remove obstacles.
Replace impeller.
Inverse two phases.
Remove obstacles.
-
Call dealer.