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WATLOW IND.

 WATROD

 Modular Duct Heater Installation & Maintenance Manual

    

I&M NUMBER: 316-42-15-1 

 

                      Page: 7               

Date:6/11/2008  

Rev: 

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WATLOW IND.n  # 6 INDUSTRIAL LOOP RD. n HANNIBAL MO, 63401n PHONE 314-221-2816 n FAX 314-221-3723 

 

 

 
Contact your local Watlow distributor for ordering replacement parts. Check the Yellow Pages under 
"Electrical Heating Elements" in the largest industrial area nearest you. 

 

 Warranty

 

Watlow warrants its products against defects in material and workmanship for 12 months from the date of 
delivery for custom products and 18 months for stock products providing such products are properly applied, 
used and maintained. Watlow does not warrant any product against damage from corrosion, contamination, 
misapplication, improper specification or operating conditions beyond our control. The terms of this warranty 
are the exclusive terms available to any person. No person has authority to bind the Company to 
representation or warranty other than this warranty. Watlow is not liable for incidental or consequential 
damages resulting from use of the product whether a claim for such damages is based upon warranty, 
contract, negligence or other fault. Should any product fail under these warranty conditions it will be repaired 
or replaced at no charge. Advanced authorization must be obtained within 30 days of failure. 

 

 Return Policy

 

1. 

Call Watlow Industries at 573-221-2816, for a Return Material Authorization (RMA) number before 
returning any item for repair or replacement. The following information is needed to process a returned 
heater expeditiously: 
 

 

Customer 

name 

   

 

Customer account number 

 

Contact 

Name 

   

 Phone 

Number 

 

Part 

number 

   

 P.O. 

number 

 Quantity 

 

 

 

Reason for return 

 Application 

information 

 

MSDS sheet of material(s) that came in contact with heater, if used.

 

 

2.  Prior approval and an RMA number is needed when returning any unused product for credit. Make sure 

the RMA number is on the outside of the carton, and on all paperwork. Return all material Freight 
Prepaid basis. 
 

3.  Stock heaters and accessories which have not been used or modified can be returned to the plant for a 

20% restocking charge. Modified stock units can only be returned, if they are not permanently modified, 
for a minimum 30% restocking charge. 
 
4.  All stock and modified stock must have a date code no later than 2 years from the date of shipment.  
 
 
 

Summary of Contents for 316-42-15-1

Page 1: ...rts you to a WARNING a safety hazard which could affect you and the equipment Installation Proper heater selection and installation will result in efficient heat transfer safe operation and long heater life 1 Megohm precheck During shipping and or storage the possibility of moisture absorption by the insulation material within the element is possible To ensure proper megohm values a minimum 500 VD...

Page 2: ... use a compatible enclosure could result in heater damage and personnel danger Standard terminal enclosures are designed for general purpose use and are rated NEMA 1 These enclosures should be applied where there will be no danger of spilled liquids dampness dirt and gaseous conditions Enclosures for wet or hazardous locations are also available but must be installed at the factory Although enclos...

Page 3: ...___________________________________________________________________________________________________________________ ______ WATLOW IND n 6 INDUSTRIAL LOOP RD n HANNIBAL MO 63401n PHONE 314 221 2816 n FAX 314 221 3723 OVERHEATING OVERHEATING OVERHEATING OVERHEATING OVERHEATING OVERHEATING Heater too close to elbow Heater too close to transition Heater too close to blower Heater blocked by filter and...

Page 4: ...ower rating ambient temperature and type of environment Feeder wire should also be housed in either rigid or flexible conduit which carries the same classification as the heater enclosure It is the users responsibility to properly size and install feeder wire Feeder wire line connections may be made directly to stud terminals or box type compression fittings Box type compression fittings will acce...

Page 5: ...current is lower the heater may be wired wrong or has open elements Air not heating to desired Not enough Kw or incorrect voltage being applied temperature Too much heat loss higher wattage heater may be required High limit tripping alarm Not enough fluid flow Too much Kw Line voltage higher than designed allowable Preventative Maintenance CAUTION HAZARD OF ELECTRIC SHOCK TURN ALL POWER TO HEATER ...

Page 6: ...XXXXXXXXX XXXX W XXX V XPH XXXX TOP c Use a 1 8 NPT tap to thread the hole drilled in step b Make certain that the hole being tapped is perpendicular to the flange If it is not perpendicular electrical shorting may occur between the compression fitting and the nearby electrical jumpers d Thread the lower portion of the compression fitting in the hole tapped above e Insert thermocouple through lowe...

Page 7: ...her than this warranty Watlow is not liable for incidental or consequential damages resulting from use of the product whether a claim for such damages is based upon warranty contract negligence or other fault Should any product fail under these warranty conditions it will be repaired or replaced at no charge Advanced authorization must be obtained within 30 days of failure Return Policy 1 Call Wat...

Page 8: ...____________________________________________________________________________________________________________________________________________________________________________ ______ WATLOW IND n 6 INDUSTRIAL LOOP RD n HANNIBAL MO 63401n PHONE 314 221 2816 n FAX 314 221 3723 REVISIONS LEVEL DESCRIPTION INITIALS DATE 1 00 SEE PART COMMENTS 1 98 2 00 HAN2838 TBR 06 11 08 ...

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