Grundfos FV Installation And Operating Instructions Manual Download Page 13

English (GB)

13

6. Fault finding

7. Disposal

This product or parts of it must be disposed of in an 
environmentally sound way. Use appropriate waste collection 
services. If this is not possible, contact the nearest Grundfos 
company or service workshop.

Subject to alterations.

Fault

Possible cause

Possible remedy

Too low flow or no flow

Strainer is soiled.

Clean the strainer.

Pump is switched off.

Switch on the pump.

Suction line is installed incorrectly.

Check the suction line and connection.

Internal diameter of suction line is too small.

Use suction line with larger internal 
diameter.

Suction line is not tight.

Check the line and connections.

Low-level or empty indication does not work

Signal line is not connected to the pump.

Connect the signal line to the pump.

Contact type is set incorrectly.

Adapt setting of contact type
(see section 

4.2.3

).

Reed switch is defective.

Replace the foot valve or suction lance.

Summary of Contents for FV

Page 1: ...GRUNDFOS INSTRUCTIONS Rigid Suction Lances RSL and Foot Valves FV Installation and operating instructions...

Page 2: ...2...

Page 3: ...f a non return valve Keeping the foot valve upright at the container bottom Indicating a low level of liquid or an empty tank by means of two reed switches and floaters Connecting an exchangeable cont...

Page 4: ...maintenance 2 5 Product description Fig 1 From left to right suction lance foot valve with level indication plastic and stainless steel foot valve without level indication Note Grundfos cannot be held...

Page 5: ...ball C Ceramic Connections for hose U2 Hose connection set 4 6 mm 6 9 mm 6 12 mm 9 12 mm U7 Hose connection set 0 17 x 1 4 1 4 x 3 8 3 8 x 1 2 X Without connections Code Example FV 2L G5 8 PE V E C U...

Page 6: ...gph 15 85 Max pressure 2 bar 2 psi 29 Max liquid temperature C 45 60 80 Min liquid temperature C 0 0 10 Max ambient temperature C 45 Min ambient temperature C 0 0 10 Max storage temperature C 45 Min s...

Page 7: ...ion Left PE and PVDF version right stainless steel version TM04 8445 4511 TM04 8447 4511 Code Dimensions mm Suction lance Foot valve L1 see type key 2 6 1 196 L2 114 103 5 L3 103 43 5 L4 85 18 5 L5 25...

Page 8: ...part 4 fully into the hose 3 Put the cone part with hose onto the corresponding threaded connection of foot valve suction lance or suction valve of the pump 4 Tighten union nut manually Do not use any...

Page 9: ...al outputs Both are factory set to NO contact type The symbol is on the floater top see fig 7 The symbol that is visible from above shows the switch mode floater above The symbol that is visible from...

Page 10: ...uction lance foot valve to the tank height Fig 8 Inserting the suction lance Fig 9 Inserting the foot valve 4 Fasten suction lance at hose connection Fig 10 Fastening the suction lance 5 Fasten return...

Page 11: ...NPT 31 mm Adaptor for containers with 2 NPT threaded opening PVC grey 98156690 G 2 S 70 x 6 28 mm Adaptor for drums with S 70 x 6 coarse thread MAUSER 2 PE blue 98071171 G 2 S 56 x 4 28 mm Adaptor fo...

Page 12: ...f existing remove deaeration line from the dosing head 4 Take suction lance or foot valve out of the container 5 Empty the suction lance 6 Suction lance Unscrew inlet with strainer unit from the botto...

Page 13: ...ean the strainer Pump is switched off Switch on the pump Suction line is installed incorrectly Check the suction line and connection Internal diameter of suction line is too small Use suction line wit...

Page 14: ...14...

Page 15: ...95309290 95838461 Japan GRUNDFOS Pumps K K Gotanda Metalion Bldg 5F 5 21 15 Higashi gotanda Shiagawa ku Tokyo 141 0022 Japan Phone 81 35 448 1391 Telefax 81 35 448 9619 Korea GRUNDFOS Pumps Korea Ltd...

Page 16: ...g ahead makes it possible Innovation is the essence The name Grundfos the Grundfos logo and the payoff Be Think Innovate are registrated trademarks owned by Grundfos Management A S or Grundfos A S Den...

Reviews: