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Recirculator II User and Service Manual 

 

 

 
 
 

 

 
 
 

11 

Product Service 

Limited Warranty 

Dayton Shaded Pole blowers, General Electric or Sylvania germicidal UV fluorescent lamps 
and fixtures and all other electrical and mechanical components or assemblies within this unit 
are warranted by Biosense, Inc. to the original user against defects in materials or 
workmanship under normal use for a period of one year from date of purchase. Any part or 
assembly which is determined by Biosense to be defective in materials or workmanship and 
returned to an authorized service location, as Biosense designates, shipping costs prepaid will 
be, as the exclusive remedy, repaired or replaced at Biosense’s option. 

Limitation of Liability 

To the extent allowable under applicable law, Biosense’s liability for consequential and 
incidental damages is expressly disclaimed. Biosense’s liability in all events is limited to and 
shall not exceed the purchase price paid. 

Prompt Disposition 

Biosense will make a good faith effort for prompt correction or other adjustment with respect 
to any product which proves to be defective within limited warranty. For any product 
believed to be defective within limited warranty, first write or call the dealer from who the 
product was purchased. The dealer will give additional directions. If unable to resolve 
satisfactorily, write to Biosense using the address below, giving the dealer’s name, address, 
date of purchase, dealer’s invoice number, and a description of the defect. Title and risk of 
loss pass to the buyer on deliver to common carrier. If product was damaged in transit to you, 
file a claim with the carrier. 
Manufactured by Biosense, Inc., 2616 Peartree Lane, San Jose, CA 95121, USA,  
Tel: (800) 941-2844  Fax: (408) 270-4457 E-mail:  [email protected] 

Reordering Information 

Product   

 

 

Part Number  

Recirculator II 

 

      

      9431 

 

 

Negative Pressure Adapter 

      9405 

HEPA Filter 

 

 

      9402 

Pre- Filter   

 

 

      9403 

 

Recirculator manual.doc 

3/8/20

 

 

Summary of Contents for 9431

Page 1: ...Biosense Inc 2616 Peartree Lane San Jose CA 95121 800 941 2844 RECIRCULATOR II Part No 9431 User and Service Manual 4th Edition Revised 3 20...

Page 2: ...Recirculator II User and Service Manual 1...

Page 3: ...he Recirculator II 4 Servicing the Motor 5 Changing the Filters 6 HEPA Filter Replacement 7 Pre Filter Replacement 8 Cleaning the Recirculator II 8 Appendix A Negative Pressure Adapter Part No 9405 9...

Page 4: ...A filters should not be touched as the filter fabric can easily be nicked or torn which will impair their efficiency 5 Check the interior for loose parts or any signs of damage Testing the Unit To tes...

Page 5: ...lator II is equipped with a two speed blower controlled by a dual position switch High Off Low At the High speed upper position the unit will purify about 575 cfm with new clean filters installed At t...

Page 6: ...tions the motor bearings should be re lubricated every six months with 10 or 20 drops of SAE 10W or 20W non detergent oil ML type or with electric motor oil Refer to diagram at the end of this manual...

Page 7: ...culator II are an extruded aluminum frame enhanced performance HEPA filter designed to provide approximately 575 cfm when new at a pressure differential of about 0 60 0 65 inches w c When the pressure...

Page 8: ...old filter a Turn a waste bag inside out and lay it on top of the filter to be replaced b Grasp the top of the filter with the bottom of the bag c Slowly withdraw the filter while rolling the inverted...

Page 9: ...er the filter 4 Seal the bag and dispose of it properly 5 Insert slide in a new filter noting the direction of airflow arrow should point up and secure the catch NOTE The Recirculator II s performance...

Page 10: ...ng the Negative Pressure Adapter Unpack the NPA 270 and inspect for damage The two insertion pins contain manufactured bends but should extend parallel with the face of the unit The following are gene...

Page 11: ...taff HVAC personnel or independent HVAC contractors may now attach appropriate ductwork to the NPA 270 outlet in order to exhaust airflow from the area It should be noted that once fitted with the NPA...

Page 12: ...ility in all events is limited to and shall not exceed the purchase price paid Prompt Disposition Biosense will make a good faith effort for prompt correction or other adjustment with respect to any p...

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