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Section 7  

Maintenance

Caution

Make no attempt to service or repair a VWR product under

warranty before consulting your distributor. After the warranty period,
such consultation is still advised, especially when the repair may be
technically sophisticated or difficult.

If assistance is needed beyond what the distributor can provide, please call
the Technical Services department. No merchandise, however should be
returned without prior approval.

Caution

Disconnect plug from electrical outlet before attempting any

maintenance or repair of this unit. 

s

Wash the cabinet with a solution of water and mild soap or detergent to
clean off surface dirt, marks or smudges. Keep the vents clear of dust for
free air circulation. This will add to the service life of components.

Clean up spills inside the chamber as soon as possible to prevent them
from being baked on. When the oven is cool, use hot soapy water and a
soft cloth to clean the #304 stainless steel chamber. Do not use scouring
pads with metallic content, chlorine bleach or halogen-based cleaners.

The aluminum shelf assembly should be washed with a mild soap and
water. Do not use abrasive or halogen-based cleaners. They will damage
the finish. Rinse thoroughly and dry completely.

Wipe interior glass with an ammonia-based glass cleaner and a soft, lint-
free cloth.

Clean exterior safety shield with a solution of mild soap and water using
soft lint-free cloth. Do not use abrasive cleaners or other strong solutions.
They will harm surface of the safety shield and reduce clarity.

Apply a high-quality vacuum grease to the door gasket frequently,
especially before initiating a vacuum, after shutdown, or if the oven is not
expected to be used in the near future.

Small Vacuum Oven

7-1

VWR Collection

Routine Cleaning

Door Gasket

Lubrication

Summary of Contents for 89508-424

Page 1: ...User Manual VWR Collection Model 89508 424 Small Vacuum Oven Operating and Maintenance Manual 7006290 Rev 0...

Page 2: ...VWR Collection MANUAL NUMBER 7006290 0 10 7 13 Original ccs REV ECR ECN DATE DESCRIPTION By Preface Small Vacuum Oven i...

Page 3: ...djustments and maintenance must be performed by qualified service personnel s Material in this manual is for information purposes only The contents and the product it describes are subject to change w...

Page 4: ...and the equipment that has been put on the market after 13 August 2005 This product is required to comply with the European Union s Waste Electrical Electronic Equipment WEEE Directive 2002 96 EC It i...

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Page 6: ...Thermometer Placement 4 2 Shelving 4 2 Features 5 1 Control Panel 5 1 Topside of Oven 5 2 Operation 6 1 Temperature Control 6 1 Purging the Chamber with Inert Gas 6 2 Vacuum Control 6 2 Loading the O...

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Page 8: ...ontrol panels include a lighted power switch temperature control dial and heat indicating light The vacuum control and release valves are on top of the oven Vacuum levels are precisely controlled betw...

Page 9: ......

Page 10: ...ance with local electrical codes It is most important that the user follow installation instructions exactly as written Failure to do so is likely to lead to improper operation erroneous calibrations...

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Page 12: ...C in 5 C increments Dimensions Interior 8 W x 12 D x 8 H 20 x 30 x 20 cm Exterior 17 W x 16 D x 17 3 8 H 43 x 41 x 44 cm Volume 0 44 cubic feet 12 5 liters Net Weight 57 lbs 26 kg Environmental Condit...

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Page 14: ...hipment absolves the carrier from any liability for damage You must call for a damage inspection promptly Place the oven near an electrical outlet meeting the requirements stated on the name plate and...

Page 15: ...plied with a 3 wire line cord It should be plugged into an outlet supplying the correct voltage for the unit and designed for 3 prong plugs For an outlet designed to accept 2 prong ungrounded plugs th...

Page 16: ...ATURE CONTROL DIAL This thermostat controls the temperature of the oven While the dial scale of 0 to 10 does not indicate the actual temperature settings and is for REFERENCE ONLY it does allow the us...

Page 17: ...ge dial indicator located between the two topside ports this gauge is scaled down from 0 to 30 inches of mercury It indicates the level of vacuum in the chamber 7 VACUUM RELEASE PORT Located on the ri...

Page 18: ...t temperature before loading the oven turn the power switch ON and note that the power switch is lit Rotate the thermostat knob to approximate the desired setting The heater indicator status lamp will...

Page 19: ...establish the original level by repeating Steps 2 and 3 Some applications call for replacing the vacuum with an inert gas while the bake continues Use only noncorrosive nonflammable gases such as nit...

Page 20: ...chamber as soon as possible to prevent them from being baked on When the oven is cool use hot soapy water and a soft cloth to clean the 304 stainless steel chamber Do not use scouring pads with metall...

Page 21: ...screws insulation from the back and the oven housing The oven housing is held by screws around the bottom edges Lift it off and remove the rest of the insulation Unscrew the heater brace nuts to remo...

Page 22: ...VWR International LLC Radnor Corporate Center Building One Suite 200 100 Matsonford Road Radnor Pennsylvania 19087 United States 610 386 1700 www vwrsp com...

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