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© Copyright 2019 Zoeller

® 

Co. All rights reserved.

8

OUTLINE / DIMENSIONAL SIZE

IL1212

6.02

13.96

6.22

6.89

6.3

7.28

5.71

5.12

8.98

8.62

NPT1"

NPT1"

Outlet

Inlet

4.13

1.77

4- 0.4

8.07

NPT1"

6.3

7.28

5.12

NPT1"

6.35

16.11

6.55

6.89

8.62

5.71

8.98

4.13

1.77

Outlet

Inlet

4- 0.4

8.07

350

355

in lieu of all other warranties expressed or implied; and we do not authorize any 
representative or other person to assume for us any other liability in connection 
with our products.

Contact Manufacturer at, 3649 Cane Run Road, Louisville, Kentucky  40211, 

Attention: 

Customer Support Department to obtain any needed repair or replacement of 
part(s) or additional information pertaining to our warranty.

MANUFACTURER EXPRESSLY DISCLAIMS LIABILITY FOR SPECIAL, 
CONSEQUENTIAL OR INCIDENTAL DAMAGES OR BREACH OF EXPRESSED 
OR IMPLIED WARRANTY; AND ANY IMPLIED WARRANTY OF FITNESS FOR A 
PARTICULAR PURPOSE AND OF MERCHANTABILITY SHALL BE LIMITED TO THE 
DURATION OF THE EXPRESSED WARRANTY.

Some states do not allow limitations on the duration of an implied warranty, so 
the above limitation may not apply to you. Some states do not allow the exclusion 
or limitation of incidental or consequential damages, so the above limitation or 
exclusion may not apply to you.

This warranty gives you specific legal rights and you may also have other rights 

which vary from state to state.

LIMITED WARRANTY

Manufacturer warrants, to the purchaser and subsequent owner during the warranty 
period, every new product to be free from defects in material and workmanship 
under normal use and service, when properly used and maintained, for a period 
of one year from date of purchase. Proof of purchase is required.   Parts that fail 
within the warranty period that inspections determine to be defective in material 
or workmanship will be repaired, replaced or remanufactured at Manufacturer's 
option, provided however, that by so doing we will not be obligated to replace an 
entire assembly, the entire mechanism or the complete unit.  No allowance will 
be made for shipping charges, damages, labor or other charges that may occur 
due to product failure, repair or replacement.
This warranty does not apply to and there shall be no warranty for any material 
or product that has been disassembled without prior approval of Manufacturer, 
subjected to misuse, misapplication, neglect, alteration, accident or uncontrollable 
act of nature; that has not been installed, operated or maintained in accordance 
with Manufacturer's installation instructions; that has been exposed to outside 
substances including but not limited to the following:  sand, gravel, cement, mud, 
tar, hydrocarbons, hydrocarbon derivatives (oil, gasoline, solvents, etc.), or other 
abrasive or corrosive substances, wash towels or feminine sanitary products, 
etc. in all pumping applications.  The warranty set out in the paragraph above is 

In instances where property damages are incurred as a result of an alleged product failure, the property 

owner must retain possession of the product for investigation purpose.  

Summary of Contents for 350

Page 1: ... Product information presented here reflects conditions at time of publication Consult factory regarding discrepancies or inconsistencies MAIL TO P O BOX 16347 Louisville KY 40256 0347 SHIP TO 3649 Cane Run Road Louisville KY 40211 1961 TEL 502 778 2731 1 800 928 PUMP FAX 502 774 3624 Visit our website zoellerpumps com ...

Page 2: ...n this manual when connecting to power lines 4 Always disconnect power source before performing any work on or near the motor or its connected load 5 Risk of electric shock This pump has not been investigated for use in swimming pool areas or marine areas 6 Protect electrical cord Replace or repair damaged or worn cords immediately 7 To reduce the risk of electric shock connect only to a properly ...

Page 3: ...n be used to decrease the on off cycle rate of the pump system which can extend the life of the pump Typical tank 3 gallon draw down Set tank PSI equal to pump tank PSI The entire system must be air and water tight to maintain prime Use thread tape on all connections to ensure no leaks Hand tighten all threads and then add additional half turn with wrench FOR NEW PUMP INSTALLATION 1 The inlet and ...

Page 4: ...ected from the cold environment OPERATING CONDITIONS Ambient temperature range 32 ºF 0 ºC to 104 ºF 40 ºC PRIMING After installation with the pump OFF open ball valves 1 and 2 and slowly unthread the air relief plug FIG 4 Allow inlet water pressure to fill the pump cavity and remove in line air pockets After the pump cavity fills with water retighten the air relief plug FIG 4 PRIMING ILLUSTRATION ...

Page 5: ...amage Once water flow is restarted the pump will re start the power automatically 4 Rapid Cycle Protection If the unit cycles repeatedly on off the unit will shut down to protect the pump life The optional water tank not maintaining pressure could be a potential cause Hourly it will turn on to sample the water flow requirements and return to shut down if the problem persists The home owner can fix...

Page 6: ... 3 If the pump is to be inactive for long periods it should be rinsed thoroughly with clean water then drained and stored in a dry place 4 If the pump shaft is seized up after periods of inactivity place a screwdriver in the motor end to rotate the shaft This should free the pump shaft See FIG 7 If this does not remedy the problem the pump will need to be dismantled FIG 7 FREEING UP PUMP SHAFT IL1...

Page 7: ... the flange b Place the 4 screws in the flange DO NOT tighten at this time When all 4 screws are in place tighten them diagonally onto the flange DO NOT over tighten Recmmended torque is 18 22 in lbs FIG 11 PLACING GASKET ON FLANGE FIG 12 TIGHTENING FLANGE Screws should be tightened diagonally Do not tighten the screws unevenly Pipe and flange should be installed in a straight line IL1966 Screw to...

Page 8: ...erandsubsequentownerduringthewarranty period every new product to be free from defects in material and workmanship under normal use and service when properly used and maintained for a period of one year from date of purchase Proof of purchase is required Parts that fail within the warranty period that inspections determine to be defective in material or workmanship will be repaired replaced or rem...

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