Duke WB302-LP Service Manual
GAS OPERATED
WETBATH
FOODWARMERS
MODELS
Service Manual
WB302-NAT WB302-LP
WB303-NAT WB303-LP
WB304-NAT WB304-LP
WB305-NAT WB305-LP
Please read this manual completely before attempting to
install, operate or service this equipment
This manual is Copyright 2011 Duke Manufacturing Company. All rights reserved.
Reproduction without written permission is prohibited. Duke is a registered
trademark of the Duke Manufacturing Company.
Duke Manufacturing Company
2305 N. Broadway
St. Louis, MO 63102
Phone: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074
www.dukemfg.com
P/N 219218B
Gas Operated Foodwarmers
IMPORTANT WARNING AND SAFETY INFORMATION
WARNING
READ THIS MANUAL THOROUGHLY BEFORE OPERATING, INSTALLING OR PERFORMING MAINTENANCE ON THE EQUIPMENT.
WARNING
FAILURE TO FOLLOW INSTRUCTIONS IN THIS MANUAL CAN CAUSE PROPERTY
DAMAGE, INJURY OR DEATH.
WARNING
DO NOT USE OR STORE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS
IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
WARNING
DO NOT OPERATE THIS EQUIPMENT WITHOUT PROPERLY PLACING AND SECURING
ALL COVER AND ACCESS PANELS.
CAUTION
Observe the following:
• Provide and maintain adequate minimum clearances from all walls and combustible materials.
• Provide and maintain adequate clearance for air openings.
• Keep the equipment area free and clear of combustible material.
• Operate equipment only on the type of electricity indicated on the specication plate.
• Retain this manual for future reference.
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Gas Operated Foodwarmers
TABLE OF CONTENTS
SPECIFICATIONS ...............................................................................................................................4
INSTALLATION ...................................................................................................................................4
Location ...............................................................................................................................4
Leveling ...............................................................................................................................4
Stabilizing ............................................................................................................................4
Gas Connection ...................................................................................................................4
MAINTENANCE ..................................................................................................................................5
Stainless Steel Care and Cleaning ......................................................................................5
Gas Regulators ....................................................................................................................5
SERVICE INFORMATION / TROUBLESHOOTING ............................................................................6
PARTS REPLACEMENT .....................................................................................................................7
Gas Valve Replacement ..............................................................................................................7
Safety Valve Replacement...........................................................................................................8
Thermocouple Replacement .......................................................................................................8
Pilot Replacement .......................................................................................................................9
Direct Burn Pilot ...................................................................................................................9
Safety Valve Pilot .................................................................................................................9
Burner Replacement ..................................................................................................................10
Direct-Burn Burner .............................................................................................................10
Safety Valve Burner ...........................................................................................................10
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Gas Operated Foodwarmers
INSTALLATION
Location
The unit represented in this manual is intended for
indoor use only. Be sure the chosen location has
a oor strong enough to support the total weight
of the unit . Reinforce the oor if necessary to
provide for maximum loading. For the most efcient
operation, be sure to provide good air circulation
inside and out.
Leveling
Be sure that the units are placed on a rm, at
surface/oor. Check for cracks in ooring or tile
and avoid these areas if possible. If necessary
place support pads, properly rated for the weight
of the unit, to “bridge” uneven or cracked ooring.
Level the unit accordingly.
Stabilizing
Use the leg adjustments to insure that the unit
is solid to the oor surface at all contact points.
Insure that the unit does not “rock” when pressure
is applied to the top corners.
Gas Connection
Gas food warmers are available for natural gas
and propane. All gas connections service must be
performed by a certied plumber and must comply
with local codes.
Figure 1.
Gas Foodwarmer
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