Multi-Deck Warmer
MODEL MDW
Installation & Operation Manual
Serial Numbers 121764 and Higher
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Multi-Deck Warmer
Table of Contents
Table of Contents
Table of Contents........................................................................................................................................1
Introduction .................................................................................................................................................2
Safety Precautions....................................................................................................................................2
Safety Signs and Messages.................................................................................................................2
Safe Work Practices.............................................................................................................................3
Operation .....................................................................................................................................................4
Controls and Indicators.............................................................................................................................4
Shelf Power/Lighting ............................................................................................................................4
Shelf Temperature................................................................................................................................4
Power Up and Preheating.........................................................................................................................4
Temperature Adjustment ..........................................................................................................................4
Operational Guidelines .............................................................................................................................4
Unit Shutdown...........................................................................................................................................5
Installation ...................................................................................................................................................6
Unpacking and Handling...........................................................................................................................6
Floor Model...............................................................................................................................................6
Counter Model ..........................................................................................................................................8
Caster Model.............................................................................................................................................8
Wiring........................................................................................................................................................8
Initial Setup and Adjustment.....................................................................................................................8
Maintenance ................................................................................................................................................9
Scheduled Maintenance ...........................................................................................................................9
Cleaning ...............................................................................................................................................9
Troubleshooting......................................................................................................................................10
Notes ..........................................................................................................................................................11
1
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Multi-Deck Warmer
Introduction
Introduction
The MDW is a multi-tier, self-serve hot food merchandiser. It consists of heated glass shelves, individual
shelf lighting, and electronics for powering the shelves, lighting the shelves and controlling the
temperature of each shelf. This unit is for use with prepackaged foods only.
This unit is manufactured by BKI which assures you of the finest in design and engineering -- that it has
been built with care and dedication -- using the best materials available. Attention to the operating
instructions regarding proper installation, operation, and maintenance will result in long lasting
dependability to insure the highest profitable return on your investment.
PLEASE READ THIS ENTIRE MANUAL BEFORE OPERATING THE UNIT. If
you have any questions, please contact your BKI Distributor. If they are unable to
answer your questions, contact the BKI Technical Service Department, toll free:
1-800-927-6887. Outside the U.S., call 1-864-963-3471.
Floor and counter units must be sealed to the mounting surface after installation
to conform to NSF requirements. (Dow Corning RTV #732 Multi purpose
Sealant.)
Safety Precautions
Always follow recommended safety precautions listed in this manual. Below is the safety alert symbol.
When you see this symbol on your equipment, be alert to the potential for personal injury or property
damage.
Safety Signs and Messages
The following Safety signs and messages are placed in this manual to provide instructions and identify
specific areas where potential hazards exist and special precautions should be taken. Know and
understand the meaning of these instructions, signs, and messages. Damage to the equipment, death or
serious injury to you or other persons may result if these messages are not followed.
This message indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
This message indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
This message indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury. It may also be used to alert against unsafe
practices.
This message is used when special information, instructions or identification are
required relating to procedures, equipment, tools, capacities and other special
data.
2
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Multi-Deck Warmer
Safe Work Practices
Beware of High Voltage
This equipment uses high voltage. Serious injury can occur if you or any
untrained or unauthorized person installs, services, or repairs this equipment.
Always Use an Authorized Service agent to Service Your Equipment
Beware of Hot Surfaces. Do Not Touch.
The shelves in this unit reach temperatures that can cause burns. Use
caution when placing product on and removing product from the shelves. Do
not touch any of the shelves when they are energized. A CAUTION HOT
message is embossed on the front of each shelf to alert you of a potential
hazard.
Keep this manual with the Equipment
This manual is an important part of your equipment. Always keep it near for
easy access. If you need to replace this manual, contact:
BKI
Technical Services Department
P.O. Box 80400
Simpsonville, S.C. 29680-0400
Or call toll free: 1-800-927-6887
Outside the U.S., call 864-963-3471
Protect Children
Keep children away from this equipment. Children may not understand that
this equipment is dangerous for them and others.
NEVER allow children to play near or operate your equipment.
Be Prepared for Emergencies
Be prepared for fires, injuries, or other emergencies.
911
Keep a first aid kit and a fire extinguisher near the equipment. You must use
a 40-pound Type BC fire extinguisher and keep it within 25 feet of your
equipment.
Keep emergency numbers for doctors, ambulance services, hospitals, and
the fire department near your telephone.
Know your responsibilities as an Employer
• Make certain your employees know how to operate the equipment.
• Make certain your employees are aware of the safety precautions on the
equipment and in this manual.
• Make certain that you have thoroughly trained your employees about
operating the equipment safely.
• Make certain the equipment is in proper working condition. If you make
unauthorized modifications to the equipment, you will reduce the function
and safety of the equipment as well as void the warranty.
3
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Multi-Deck Warmer
Operation
Operation
Controls and Indicators
Refer to Figure 1 and the following sections for an explanation of controls and indicators.
Shelf Power/Lighting
The POWER ON/OFF circuit breaker allows you to turn all shelves ON or OFF. This device provides
overload, short circuit and ground fault protection. When an overload or earth leakage ground fault
condition occurs, the circuit breaker will trip causing the actuator to move to the OFF position and the
leakage trip indicator LED to illuminate. A circuit is built into the device to simulate an overload or earth
leakage ground fault. To test this circuit, a push-to-test button is located above the actuator. This button
should be pressed at least once a month to check the functionality of the device. The LIGHTS ON/OFF
circuit breaker allows you to turn all shelf lighting ON or OFF. A pilot light is mounted between the power
circuit breaker and light circuit breaker. This light illuminates when an overtemperature condition occurs
within the unit.
When the pilot light on the switch plate is illuminated, a unit malfunction has
occurred. Turn the unit off immediately and contact an authorized BKI service
agent for corrective action.
Shelf Temperature
The temperature of each shelf is individually controlled via knobs on a plate behind the swing-down front
panel (accessed via ¼ turn fasteners). Each knob has a number corresponding to the shelf that it
controls. The decal shows the relationship between the knobs and shelves. The initial knob settings are
depicted in Figure 1.
Power Up and Preheating
1. Ensure that the power supply cord is connected to an appropriate power receptacle.
2. Place the POWER ON/OFF circuit breaker in the ON position.
3. Place the LIGHTS ON/OFF circuit breaker in the ON position.
4. Allow the unit to preheat for a minimum of 30 minutes before loading it with product.
Check Federal and State Health and Sanitation Regulations for internal temperature required for holding
cooked foods for sale. Maintaining these temperatures often tends to allow continued cooking of certain
products. Therefore, smaller amounts of bulk foods should be displayed at non-peak periods and the unit
refilled as needed.
All meats and vegetables should be preheated to 160 degrees F. before being placed in the unit.
Temperature Adjustment
After placing the product onto the shelves, it may be necessary to adjust the temperature control knobs in
order to maintain the proper internal temperature for the product on display. A thermometer should be
used to read the internal temperature of each product. The temperature control knobs should be adjusted
to the lowest possible setting that will maintain the proper product temperature.
Operational Guidelines
Only use product packaging suitable for the application.
Keep portable meat thermometers on hand. Check the food temperatures hourly. Rotate the food
products. Foods loaded in first should be served first as much as is practical.
4
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Multi-Deck Warmer
Operation
Foods held for long periods of time are more difficult to maintain at proper temperature. Also, freshness
and product quality diminish if foods are held too long. Most areas of the country have sanitation
regulations governing how long foods can be held. Make certain to check with your local authorities.
Unit Shutdown
1. Remove product from the unit.
2. Place the POWER ON/OFF circuit breaker in the OFF position.
3. Place the LIGHTS ON/OFF circuit breaker in the OFF position.
4. After the unit has cooled down, remove any residue from the shelves and clean the unit
thoroughly.
Figure 1. Controls and Indicators
5
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Multi-Deck Warmer
Installation
Installation
Unpacking and Handling
YOU are responsible for filling all freight claims with the delivering truck line. Inspect all cartons and
crates for damage as soon as they arrive. If damage to cartons or crates is found, or if a shortage is
found, note this on the bill of lading (all copies) prior to signing.
If damage is found when the equipment is opened, immediately call the delivering truck line and follow up
the call with a written report indicating concealed damage to your shipment. Ask for an immediate
inspection of your concealed damage item. Packaging material MUST be retained to show the inspector
from the truck line.
Do not place heavy objects on top of the unit or damage could occur. The units
are not structurally designed to support excessive external loading.
Move the unit as close as possible to its permanent location before moving it off of the shipping pallet.
Make certain there are no separately packed accessories before discarding packaging.
Floor Model
Follow the procedure below to level the unit and mount the kick plates. See Figure 2.
1. Slide kick plates, ends first, between the base frame and outer panels. Secure in raised position
with tape. Make sure that the end kick plates fit behind the front and rear kick plates.
2. Using a carpenter’s level on the lowest shelf, level the unit by adjusting the leg levelers at the
corners of the unit.
3. Raise the low end of the unit to level it, do not lower the high end.
4. Check for level side-to-side and front-to-back.
5. Remove the tape holding the kick plates in raised position.
6. Make certain that the kick plates are flush to the floor.
7. Drill 9/64” diameter holes in the base frame to match the pre-drilled holes in the kick plates.
8. Attach the kick plates to the base frame with the #8x1/2” black sheet metal screws provided
(SCR355).
9. Seal kick plates to floor using a silicone-type sealant (Dow Corning RTV #732 or equivalent).
6
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Multi-Deck Warmer
Installation
Figure 2. Floor Model – Leveling & Kick Plate Mounting
7
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Multi-Deck Warmer
Installation
Counter Model
Counter mounted units must be mounted on a level surface that can support the weight of the unit and it’s
contents. Use a carpenter’s level to level the unit.
These units are to be sealed to the counter if required by local health codes. Seal the perimeter of the
units to the counter using a silicone-type sealant (Dow Corning RTV #732 or equivalent).
Caster Model
Caster mounted units must be moved to a permanent location and the two swivel casters locked before
using.
Wiring
Electrocution, equipment failure or property damage could result if an unlicensed
electrician performs the electrical installation. Ensure that a licensed electrician
perform the electrical installation in accordance with local codes, or in the absence
of local codes, with the National Electrical Code, ANSI NFPA 70-20XX.
This unit, when installed by an authorized BKI service agent, must be wired for use in accordance with all
applicable local, state, and federal codes. For specific electrical requirements and connections refer to the
wiring diagram attached to the unit or provided in the Service Manual.
Initial Setup and Adjustment
Follow the procedure below to setup and adjust the unit for proper operation.
1. Connect the unit power cord to a receptacle that supplies power matching that specified on the
unit rating plate.
2. Place the POWER ON/OFF circuit breaker in the ON position.
3. Let the unit preheat for 30 minutes.
4. Measure and adjust the temperature as necessary to achieve an initial temperature between
190° F and 200° F. Use a surface temperature thermometer to measure this temperature (DO
NOT USE A MEAT THERMOMETER). Additional adjustments may be necessary once the
product is placed on the shelves. If so, refer to the section entitled Temperature Adjustment on
page 4.
5. Place the POWER ON/OFF circuit breaker in the OFF position.
8
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Multi-Deck Warmer
Maintenance
Maintenance
Failure to comply with the maintenance below could result in a serious accident.
Electrocution, equipment failure or property damage could result if an unlicensed
electrician performs electrical repair. Ensure that a licensed electrician performs
electrical repair.
Scheduled Maintenance
Use the following table to help manage scheduled maintenance activities.
Frequency
Performed By
Part
Activity
Daily
User
Unit
Clean the entire Unit. Refer to the cleaning
procedure below.
Monthly
User
Shelf Power
ON/OFF Circuit
Breaker
Press push-to-test button to test overload,
short circuit and ground fault protection
capability.
Cleaning
This unit should be cleaned at the end of each day. Use the following procedure:
Failure to remove power from this unit may cause severe electrical shock. This
unit may have more than one disconnect switch.
1. Place the POWER ON/OFF circuit breaker in the OFF position.
2. Place the LIGHTS ON/OFF circuit breaker in the OFF position.
3. Allow unit to cool down.
4. Disconnect power from the unit by unplugging it from the power receptacle.
5. Remove product from the shelves.
Using abrasive cleaners may damage the unit. Use only a mild soap and water
solution.
Never steam clean or get excess water in the interior of the unit as this can
damage unit.
6. Use a mild soap and water solution to clean the unit.
7. Sponge the inside and outside with a mild soap and water solution.
8. Wipe the unit dry with a soft, clean cloth.
9
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Multi-Deck Warmer
Maintenance
Troubleshooting
Refer to the table below for troubleshooting information.
Problem
Cause
Possible Solution
Shelves Not Heating and
Lights Not On
Unit not plugged into power
receptacle.
Ensure unit power cord is
connected to appropriate power
receptacle.
No Power to the unit.
Check circuit breaker or fuses at
building power panel. If problem
persists, contact an authorized
BKI service agent for corrective
action.
Power circuit breaker is OFF
and Lights circuit breaker is
OFF.
Place the Power circuit breaker
ON and the Lights circuit breaker
ON.
Power Circuit Breaker has
Tripped
Overload, short circuit or ground Place circuit breaker actuator in
fault condition exists.
the ON position. If circuit breaker
trips again, contact an authorized
BKI service agent for corrective
action.
No Heat to Single Shelf
Power circuit breaker is OFF.
Place the Power circuit breaker
ON.
Shelf Temperature control is
turned fully counterclockwise.
Adjust the shelf temperature
control. Refer to the section
entitled Temperature Adjustment
on page 4.
Defective Shelf.
Contact an authorized BKI service
agent for corrective action.
Loose Wire or bad Connection.
Contact an authorized BKI service
agent for corrective action.
Shelf Temperature control is
defective.
Contact an authorized BKI service
agent for corrective action.
Individual Light is not On
Failed fluorescent lamp.
Possible Ballast failure.
Change fluorescent lamp.
Contact an authorized BKI service
agent for corrective action.
Holding Temperature Not
Adequate
Unit has not been preheated.
Refer to the preheating section on
page 4. If problem persists,
contact an authorized BKI service
agent for corrective action.
Check product temperature
before loading the unit.
Product is below 160° F when
loaded.
Loose Wire or bad Connection.
Contact an authorized BKI service
agent for corrective action.
Shelf temperature control not
set properly.
Adjust the shelf temperature
control. Refer to the section
entitled Temperature Adjustment
on page 4.
Switch Plate Pilot Light is
On
Overtemperature condition
exists. Possible fan failure.
Turn unit OFF then contact an
authorized BKI service agent for
corrective action.
10
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Multi-Deck Warmer
Notes
Notes
11
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Multi-Deck Warmer
Notes
12
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Multi-Deck Warmer
Notes
13
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P.O. Box 80400, Simpsonville, S.C. 29680-0400, USA
Made and printed in the U.S.A
LI0189/0407
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