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INSTRUCTION MANUAL • 8 

MAINTENANCE AND CLEANING

WARNING

A.  Any service is to be performed only by qualified personnel who are familiar with local 
 

codes and regulations and are experienced with this type of product.

B.  Always unplug or disconnect the appliance from the power supply before servicing or 
 

cleaning the unit.

C.  Never use petrol, benzene, thinners, or any other such chemicals to clean the unit.
D.  Don’t allow water or any liquid to enter the motor.

1.

  Use the unit at the rated voltage and frequency indicated on the rating label.

2.

  Disconnect power source before unit installation or maintenance service.

3.

  Routine maintenance must be done every year.

4.

  Plastic parts should be cleaned with mild soap and water, thoroughly remove soap with a 

 

clean, damp cloth.

5.

  Wipe the exterior surfaces of the fan with a moistened cloth with a solution of  mild 

 

detergent and water.

6.

  Dry the case with a soft, dry cloth before operating the unit.

Summary of Contents for 687FM3509LY

Page 1: ...INSTRUCTION MANUAL AIR CURTAIN MODELS 687FM3509LY READ ENTIRE MANUAL BEFORE USE Lavex Industrial 2205 Old Philadelphia Pike Lancaster PA 17602 08 2022...

Page 2: ...to walls or ceilings do not damage electrical wiring and other hidden utilities D To reduce the risk of fire or electric shock do not use this fan with any solid state speed control device E Repair an...

Page 3: ...netration of insects dust and unconditioned air into a conditioned space by forcing an air stream over the entire entrance to create a comfortable environment INSTALLATION DIMENSIONS MODEL A B C D E F...

Page 4: ...running may cause it to become loose or shake and make noise 4 When then entrance is wider than the unit it is recommended to install two or more units In this case provide 1 to 1 gaps between the un...

Page 5: ...s as shown 1 Remove the mounting plate from the back of the main body Determine the mounting location and fix the mounting plate to the wooden wall with tapping screws 2 Determine the mounting locatio...

Page 6: ...concrete wall 3 Fix the mounting plate to the ceiling brackets and tighten it securely as shown below The position of the mounting plate can be adjusted in vertical direction according to need but th...

Page 7: ...L H L H L H L 687FM3509LY 120 60 300 270 16 13 1100 900 52 49 28 66 OPERATING INSTRUCTIONS 1 Connect power to the unit 2 Press the on off button on the air curtain to turn it on at default high speed...

Page 8: ...such chemicals to clean the unit D Don t allow water or any liquid to enter the motor 1 Use the unit at the rated voltage and frequency indicated on the rating label 2 Disconnect power source before...

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