hussman VGM Electrical Precautions, Replacing Fluorescent Lamps, Tips & Troubleshooting

Page 11

Rev. 0505

Maintenance

ELECTRICAL PRECAUTIONS

BEFORE

SERVICING

Always Disconnect Electrical

Power at the Main Disconnect when servicing or replacing any electrical component.

This includes (but not limited to) Fans,

Heaters, Thermostats, and Lights.

FOR PROMPT SERVICE

When Contacting the Factory regarding problems, Be sure to have the Case MODEL and SERIAL NUMBER Handy.

This Information is on a plate located on the case itself.

REPLACING FLUORESCENT LAMPS

Fluorescent lamps are furnished with a shatterproof protective coating. The same type of lamp with protec- tive coating must be used if replaced.

ENCAPSULITE

SHATTERPROOF COATING - SA 10645

R

Complies with FDA USDA

 

RU

& OSHA Regulations

NSF

 

 

 

for replacement call:

1-800-395-9229

Turn switch off then on after replacing bulb

EVAPORATOR FANS

The evaporator fans are located at the center front of these merchandisers directly beneath the display pans. Should fans or blades need servicing, always replace fan blades with the raised embossed side of the blade TOWARD THE MOTOR.

COPPER COILS

The copper coils used in Hussmann merchandisers may be repaired in the field. Materials are available from local refrigeration wholesalers.

Hussmann recommends using #15 Sil-Fos for repairs.

TIPS & TROUBLESHOOTING

BEFORE CALLING FOR SERVICE, CHECK THE FOLLOWING:

1.Check electrical power supply to the equipment for connection.

2.Check fixture loading. Overstocking case will affect its proper operation.

3.If frost is collecting on fixture and/or product, check that Humidity Control is working properly, and that no outside doors or windows are openÑallowing

moisture to enter store.

SHELF GLASS ADJUSTMENT

Unload product from shelves. Remove the glass insert panels, and use the 5mm wrench provided to slightly loosen the set screw at the lower rear of arm. Repeat the procedure ton the other arm.

CAUTION: SUPPORT SHELF AT ALL TIMES! DO NOT LET SHELF DROP! Use a tape measure to insure level height from deck pans, and adjust the shelf as desired. Note that the standard is marked in 1Ó increments, to aid in shelf alignment. When desired shelf location is reached, tighten shelf arm screws, and reload product.

SET SCREW

LIFT UP GLASS

IMPORTANT!

READ BEFORE RAISING FRONT GLASS :

HEX SCREWS ALONG CLAMSHELL MAY HAVE LOOSENED DURING SHIPPING!! RETIGHTEN ALL CLAMSHELL SCREWS BEFORE OPENING GLASS!

RETIGHTEN GLASS AFTER CASE

IS BROUGHT TO OPERATING TEMPERATURE FOR THE FIRST TIME!

The top cylinders, which allow the raising and lowering of the glass, have been carefully tested for proper ten- sion. However, during shipment, the lubricant inside may have settled. This settling may cause excessive or uneven tension on the glass - to the point of breakage.

After installing new cylinders, it is advisable to perform these three easy steps before completely raising the front glass.

1.Slowly raise and lower each glass section 6 times, to a height of 6".

1 1

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Contents VGM, VGD General Instructions ContentsCut & Plan Views Important InformationV E L I N G InstallationC a T I O N Uncrating the StandDo not use bolts To pull cases together Plumbing Installing Condensate DrainWaste Outlet and P Trap Important Information Humidification System Where ApplicableS T R U C T I O N S HumidificationRefrigeration Refrigerant TypeMeasuring the Operating Superheat Stat LocationUser Information Case CleaningO C K I N G Important StepsNON Glare Glass Cleaning Glass & MirrorsCleaning Plexiglass & Acrylic CareReplacing Fluorescent Lamps Electrical PrecautionsTips & Troubleshooting MaintenanceGlass Replacement & Right Left Adjustment Instructions Where ApplicableVGD Case SpecificationsElectrical Schematics 125-01-1023HARNESSPERBALLAST 125-01-1024HARNESSPERBALLAST SwitchDupex Outlet Single Outlet LightHumidifier FANS1. Comair Airsweep FANS2. Comair Electrical SchematicsLIGHT,SHELFNOSELIGHT,LEDGELIGHT Wire OFF APC L-120-3LH Fulham120-LH3 Lhamfu Lightswitch Tippette CIRCUIT#1Lights SHELFLIGHT,NOSELIGHT,LEDGELIGHTAppendices Appendix C . Field RecommendationsAppendix D . Recommendations to User Is there a shortage of refrigerant?Limited Warranty Service Record