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3.4     Pump Strainer Basket

 

 
This pump has a basket strainer, sometimes called a “Hair and Lint Pot” located in the front section of the pump 
volute.  Inside  this  chamber is a  basket  which  must  be  kept  clean  of  leaves  and  debris  at  all  times.  View  the 
basket through the “See-Through Lid” to inspect for various accumulations of trash. Regardless of the length of 
time between  filter cleaning, it is  most important to visually  inspect the basket at least once a  week. A dirty 
basket will reduce the efficiency of the filter and also put an abnormal stress on the pump motor which could 
result in failure. 

 

 

Warning:

 Do not open the strainer pot if the pump fails to prime or if the pump has been operating 

without water in the strainer pot. Pumps operated in these circumstances may experience a buildup 
of  vapor  pressure  and  may  contain  scalding  hot  water.  Opening  the  pump  may  cause  serious 
personal  injury.    In  order  to  avoid  the  possibility  of  personal  injury,  make  sure  the  suction  and 
discharge  valves  are  open  and  strainer  pot  temperature  is  cool  to  the  touch,  then  with  extreme 
caution,  you  can  open  the  strainer  lid.  Do  not  open  the  strainer  pot  lid  while  the  pump  in  in 
operation.  
 

 

 
Strainer Cleaning Procedure

          

 

1.

 

Turn off motor at the controller and then disconnect the solar array power to the controller.  

2.

 

Relieve pressure in the system. 

3.

 

Turn the lid in a counter-clockwise direction until it stops.  

4.

 

Lift the lid and remove the basket.  

5.

 

Put the debris from the basket into the trash and rinse out the gasket. If the basket is cracked, is should 
be replaced.  

6.

 

Replace the basket and fill the pump volute up to the inlet port with water. 

7.

 

Clean the cover, O-ring and sealing surface of the pump volute. Grease the O-ring with Teflon or a 
Silicone lubricant. 

8.

 

Reinstall the lid. 

9.

 

Make sure the4 lid O-ring is properly placed. Seat the lid then turn clockwise until 

hand tight

 only.  

Do not over-tighten with tools. (Figure ?) 

10.

 

Turn the power and then the controller “ON”. 

11.

 

Open the manual air relief valve on top of the filter. 

12.

 

Stand clear of the filter and start the pump. 

13.

 

Bleed the air from the filter until a steady stream of water comes out. Close the manual air relief valve.  

Summary of Contents for SCP series

Page 1: ......

Page 2: ...ring 3 5 Figure 2 Control Panel Figure 3 Dip Switch Settings Controller Settings 3 6 Auxiliary Control Circuits 3 7 Remote Switch Output Power Limit Circuit Low Power Shut Down Circuit Low Water Shut...

Page 3: ...es controller or product damage and or personal injury may result Do not exceed the voltage rating of the controller Do not splash water on the controller especially when the cover is open Mount the c...

Page 4: ...rless DC motors No other applications or DC power sources are recommended or warranted unless written approval is provided by the SunPumps factory 3 0 Installation and Operation The following sections...

Page 5: ...he solar modules as specified by the National Electric Code Wire sized too small will cause a decreased output from the pump Keep the distance from the solar modules to the pump as short as possible R...

Page 6: ...valves are open and strainer pot temperature is cool to the touch then with extreme caution you can open the strainer lid Do not open the strainer pot lid while the pump in in operation Strainer Clea...

Page 7: ...ble or call your SunPumps dealer for assistance Wire gauge being too small will cause excessive voltage losses to the motor and will reduce the flow rate of the pump All other system equipment should...

Page 8: ...Figure 2 Controller Wiring Diagram...

Page 9: ...9 Connect the DC source supply positive the red conductor to one of the controller terminals labeled Positive on the Solar Array Input NOTE The power should be connected to a disconnect and it should...

Page 10: ...ic Turns pump off when terminals connect OFF 2 ON Low Water Cutoff Logic Turns pump on when terminals connect OFF 3 ON 10 Minute Delay Increases turn on delay to 10 minutes OFF 4 ON 30 Minute Delay In...

Page 11: ...tor speed control is for adjusting the flow rate of the pump There is also the low water cutoff low power shut down and over current protection circuits See each corresponding detailed description bel...

Page 12: ...troller program This timeout applies to remote switch and low water cutoff Low Power Shut Down Sensorless Low Water Cut Off Circuit LPLW The Low Power Shut Down Low Water Cut Off Circuit LPLW turns th...

Page 13: ...atch the flow rate of the pump to the production of the well 1 With the system installed and controller properly configured allow the pump to run at full power at mid day until the pump starts surging...

Page 14: ...lay Screens NOTE Dip switch 7 will freeze the display on the current screen If the system is powered up with switch 7 on the display will only show the SUNPUMPS INC screen Turn off switch 7 to unfreez...

Page 15: ...ote circuit or low water cutoff circuit is preventing the controller from running the pump Set the 1 and 2 dip switches to off and disconnect the remote switch and low water cutoff If the pump starts...

Page 16: ...complete series string PUMP IS RUNNING BUT THE OUTPUT IS LOW 1 Make sure you have full sun light at midday that there are no clouds and no shadows on any part of the array Then verify power coming ou...

Page 17: ...heet is a must Pump Model Number ____________________ Pump Serial Number ____________________ Motor Serial Number ____________________ Controller Model Number ____________________ Software Version ___...

Page 18: ...s or other loss or injury resulting from the use of a SunPumps product The purchaser s exclusive remedy shall be only as stated herein This warranty is in lieu of all other warranties expressed or imp...

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