BKI WDCG, SSWG, CSWG Hot Food Deli Case Service Manual

Hot Food Deli Case

MODELS WDCG, SSWG, CSWG

Service Manual

Warranty Information

LIMITED ONE YEAR WARRANTY

BKI (The “Company”) warrants to the original purchaser/user, that at time of shipment from the Company factory, this equipment will be free from defect in materials and workmanship. Written notice of a claim under this Warranty must be given within ONE YEAR AND THREE MONTHS from date of shipment from the factory. Defective conditions caused by abnormal use or misuse, lack of maintenance, damage by third parties, alterations by unauthorized personnel, acts of God, failure to follow installation instructions or any other events beyond the control of the company will NOT be covered under Warranty. The obligation of the Company under this Warranty shall be limited to repairing or replacing (at the option of the company) any part which is defective in reasonable opinion of the Company. The user will have the responsibility and expense of removing and returning the defective part to the Company as well as the cost of reinstalling the replacement or repaired part.

IN NO EVENT SHALL THE COMPANY BE LIABLE FOR LOSS OF USE, LOSS OF REVENUE OR

LOSS OF PRODUCT OR PROFIT OR FOR INDIRECT OR CONSEQUENTIAL DAMAGES INCLUDING

BUT NOT LIMITED TO, FOOD SPOILAGE OR PRODUCT LOSS. WARRANTY DOES NOT COVER

GLASS BREAKAGE. THE ABOVE WARRANTY IS EXCLUSIVE AND ALL OTHER WARRANTIES,

EXPRESS OR IMPLIED, ARE EXCLUDED INCLUDING THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY SHALL

APPLY ONLY WITHIN THE CONTINENTAL UNITED STATES, ITS TERRITORIES, AND

POSSESSIONS AND IN CANADA.

LIMITED NINETY DAY LABOR WARRANTY

All labor necessary to repair or replace factory defective parts will be performed, without charge, to the end user, by service personnel of a BKI Authorized Distributor during the first ninety days after the date of installation of the new equipment.

Replacement parts: Any appliance replacement part, except lamps and fuses, which proves to be defective in material or workmanship within 90 days from date of original installation will be repaired or replaced without charge F.O.B. Factory, Simpsonville, S.C. or F.O.B. authorized distributor.

Hot Food Deli Case Table of Contents

Table of Contents

Table of Contents........................................................................................................................................ 1

Introduction ................................................................................................................................................. 2

Safety Precautions.................................................................................................................................... 2

Operation ..................................................................................................................................................... 5

Controls and Indicators............................................................................................................................. 5

Preheating................................................................................................................................................. 8

Temperature Adjustment .......................................................................................................................... 8

Operational Guidelines ............................................................................................................................. 8

Unit Shutdown........................................................................................................................................... 8

Installation ................................................................................................................................................... 9

Unpacking and Handling........................................................................................................................... 9

Floor Model ............................................................................................................................................... 9

Pedestal Model ....................................................................................................................................... 12

Counter Model ........................................................................................................................................ 13

Wiring...................................................................................................................................................... 14

Case Joining Trim................................................................................................................................... 15

Case Divider Glass ................................................................................................................................. 16

Maintenance .............................................................................................................................................. 17

Scheduled Maintenance ......................................................................................................................... 17

Well Numbering Convention ................................................................................................................... 18

Troubleshooting ...................................................................................................................................... 18

Control Service.......................................................................................................................................... 20

Accessing Control Panel......................................................................................................................... 20

Electrical Component Replacement ....................................................................................................... 20

Glass Lift-Up Hardware Component Replacement ................................................................................ 31

Replacement Parts.................................................................................................................................... 34

Control Panel .......................................................................................................................................... 34

Pushbutton Switches and Terminal Block .............................................................................................. 35

Control Display........................................................................................................................................ 36

Heating Elements & Temperature Probes.............................................................................................. 37

Light & Heater Canopy ........................................................................................................................... 38

Glass Lift Hardware ................................................................................................................................ 39

Heated Shelf ........................................................................................................................................... 40

Wiring Diagrams....................................................................................................................................... 42

1

Hot Food Deli Case

Introduction

Introduction

PLEASE READ THIS ENTIRE MANUAL BEFORE SERVICING THE UNIT. If you have any questions, contact the BKI Technical Service Department, toll free:

1-800-927-6887. Outside the U.S., call 1-864-963-3471.

This unit is to be sealed to the floor 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

Hot Food Deli Case Introduction

Specific Precautions

Equipotential Ground Plane

When a high current flows through a conductor, differences in potential appear between the conductor and nearby metallic surfaces near the appliance. As a result, sparks may be produced between the appliance and surrounding metal surfaces. These sparks could cause serious injury, damage, or fire.

BKI provides an Equipotential ground terminal for the connection of a bonding conductor after the installation of the appliance per lEC60417-1. This terminal is located on the inside of the Power Entry Supply box near the Earth connection and is marked with this symbol.

Safe Work Practices

Beware of High Voltage

This equipment uses high voltage. Serious injury can occur if any untrained or unauthorized person installs, services, or repairs this equipment. Advise your customer to always use an Authorized

Service agent to Service this Equipment

Your Customer Should have an Operators Manual

The operators manual is an important part of this equipment. Your customer should keep it near for easy access.

If your customer needs a replacement operators 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

3

Hot Food Deli Case Introduction

Safety Labels Must be Clean and in Good

Condition

Make sure all safety labels are in place, clean and in good condition.

Replace any damaged or missing safety labels.

If you need new safety labels, 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

4

Hot Food Deli Case Operation

Operation

Controls and Indicators

The deli case controls are shown in the figure below. The pushbutton switches turn the power supply to the case on and off. The touchscreen interface is used to operate the case and display temperatures.

Hardware Controls

Item # Description

1 Power OFF Switch

2 Power ON Switch

3

Interface

Function

Depressing the switch turns power OFF to the entire unit.

Depressing the switch turns power ON to the entire unit. When the

Main Power Isolator

Light unit is ON the touchscreen controller is powered & the lights illuminate.

This light illuminates to indicate that power is being applied to the unit from the main power isolator (circuit breaker).

Touchscreen

Interface

Used for the operation of the unit and to measure & record product temperatures.

RS-232 Allows user to download saved product temperatures to a laptop

PC using the supplied software.

5


Software Controls - Default Screen

The Default Screen appears on the touchscreen during normal operation. The screen shows the menu button and a representative temperature.

The representative temperature does not correspond to the

internal temperature of the food products in the case. This temperature is only an indication that the case is operating properly and heating.

When the unit is first powered up the representative temperature will be approximately room temperature. As the unit preheats the representative temperature will rise. The representative temperature will stabilize when the unit reaches operating temperature.

The representative temperature should be approximately the same from day to day when the unit is in operation. A significant change in this temperature without changing any of the temperature settings of the unit may indicate a problem with the unit. A qualified BKI service representative should be contacted.

Software Controls - Viewing Settings

The current heater settings can be viewed by touching the Menu

Button [M] on the Default Screen. The Menu Screen will then be displayed.

To view the current settings for either Well Temp or Upper Heater touch the appropriate button on the Menu Screen. The View

Setting Screen for the selected heaters will be displayed.

To return to the Default Screen, touch the Exit Button [X].

If the controller is configured to control each well position independently the View Setting Screen as shown at right will be displayed. Use the left and right arrows to display the heater setting for the various well positions of the unit. The progress bar gives a visual representation of the well location for which the setting is being displayed.

The current heater setting is displayed on the right side of the screen. The setting is a numeric value between 1 and 10 where

10 is the hottest setting.

If the controller is configured to control all of the well positions at the same setting, the progress bar will be solid and the left and right arrows will not be displayed. The setting shown will be for the heaters at all of the well positions.

To return to the Menu Screen, touch the Menu Button [M]. To return to the Default Screen, touch the Exit Button [X].

Touching [Set Clock] on the Menu Screen will display the time and date. To return to the Menu Screen, touch the Menu Button

[M]. To return to the Default Screen, touch the Exit Button [X].

Menu Button

Lower Right

Lower Left

Exit Button

Operation

Default Screen

Menu Screen

Progress Bar

Current Setting

View Setting Screen

6


Software Controls - Programming the

Controller

There is a unique set of touches to enter the programming mode.

This prevents the case settings from being inadvertently changed.

Enter the programming mode from the Default Screen by touching the lower left of the touchscreen, then the lower right and then the Menu Button [M] in that order. The Menu Screen will then be displayed.

To edit the current settings for either Well Temp or Upper Heater touch the appropriate button on the Menu Screen. The Edit

Setting Screen for the selected heaters will be displayed.

To return to the Default Screen, touch the Exit Button [X].

If the controller is configured to control each well position independently the Edit Setting Screen as shown at right will be displayed. Use the left and right arrows to display the heater setting for the various well positions of the unit. The progress bar gives a visual representation of the well location for which the setting is being displayed.

The current heater setting is displayed on the right side of the screen. Use the up and down arrows to edit the heater setting.

The setting is a numeric value between 1 and 10 where 10 is the hottest setting.

If the controller is configured to control all of the well positions at the same setting, the progress bar will be solid and the left and right arrows will not be displayed. Use the up and down arrows to edit the heater setting for all of the well positions.


To edit the controller time and date settings touch [Set Clock] on the Menu Screen while in the program mode. The time and date will need to be reset if the power supply to the case has been disconnected.

Use the left and right arrows to move the cursor under the value to be edited. Use the up and down arrows to edit the value.

Continue until the current date and time is displayed.


Menu Button

Operation

Default Screen

Lower Right

Lower Left

Edit Settings Screen

X

7

Hot Food Deli Case Operation

Preheating

You should allow the equipment to preheat at the programmed temperature settings for a minimum of 30 minutes before loading it with product. For initial start up, program the controller for each well and upper heater to a setting of 5.

Check Federal and State Health and Sanitation Regulations for internal temperature required for holding cooked foods for sale. Maintaining these temperatures often tend to allow continued cooking of certain products. Therefore, smaller amounts of bulk foods should be displayed at non-peak periods and the warmer refilled as needed.

All meats and vegetables should be preheated to 160°F (70°C). before being placed in the case.

A screen liner can be used in the bottom of the display pans that are used for holding meats. This will keep meats from sticking to the bottom of the pans.

Temperature Adjustment

After placing the product into the equipment, it may be necessary to adjust the programmed settings in order to maintain the proper internal temperature for the product on display. The optional built-in product temperature probe or a portable meat thermometer should be used to read the internal temperature of each product. The programmed settings should be set to the lowest possible number that will maintain the proper product temperature.

Operational Guidelines

Keep the optional built-in product temperature probe or a portable meat thermometer on hand. Check the food temperatures hourly.

Rotate the food products. Foods loaded in first should be served first as much as is practical.

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

Remove all food pans holding the food product from the equipment. Depress the OFF pushbutton switch to turn the power to the heaters and lights off. After the temperature has cooled below 120°F (50°C), remove any residue from the wells and clean the equipment thoroughly.

8

Hot Food Deli Case Installation

Installation

Unpacking and Handling

The company taking delivery of this equipment is 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 walk on top of deli cases or damage to the cases and serious personal injury could occur. The cases are not structurally designed to support excessive external loading such as the weight of a person. Do not place heavy objects on the deli cases.

Move the deli case as close as possible to its permanent location before moving the case off of the shipping pallet. Shipping braces are installed on each end of the deli case. Leave these braces in place while moving and leveling the deli case.

Make certain there are no separately packed accessories before discarding packaging.

During shipment, the lubricant in the gas springs may have settled. This can cause the glass not to remain open in the raised position. To avoid this, fully raise and lower the glass manually 4 or 5 times.

This unit is designed to be sealed to the floor after it is installed – to conform to

NSF Standard 4. Use Dow Corning RTV # 732 Multi-purpose Sealant.

Floor Model

Leveling

Deli cases must be installed level to insure proper operation and alignment to adjoining equipment. Use a carpenter’s level as shown in Figure 1. Begin lineup leveling from the highest point of the store floor.

1. Level the case using the leg levelers at the corners of the case (Figure 1).

2. Raise the low end of the case, do not lower the high end.

3. Check for level side-to-side and front-to-back.

4. If you are installing adjoining cases, position the next case in line beside the level case and proceed to the next step.

5. Level this case in the same manner.

6. When level, bolt the two cases together at the locations shown in Figure 1.

NOTE: None of the end components shown in Figure 2 should be attached to adjoining case ends

If the cases have been properly leveled, the front panels and counter tops should align with a small, uniform gap between the front panels of the two cases.

7. Proceed in the same manner until all the cases in the line are level and bolted together.

9


Figure 1. Floor Models - Leveling

Kick Plate Mounting

A black vinyl-covered kick plate is provided for the front, back and ends of each case.

1. In order to install the Kick Plates it will be necessary to remove the End Trim Panels (see

Figure 2). Remove the retaining nuts located inside the base with a 3/8” wrench. From outside of the case pull the End Trim Panels away from the case.

2. Slide the front kick plate (the wider of the two) behind the lower finished front panel of the case

(see Figure 2).

3. Make certain that the ends of the kick plate are flush with the ends of the lower finished front panel and that the kick plate is flush to the floor.

4. Drill 5/32” diameter holes in the case base to match the pre-drilled holes in the kick plate.

5. Attach the kick plate to the case base with the black sheet metal screws provided.

6. Mount the back kick plate to the case in the same manner.

7. Set the End Kick Plates into position on the ends of the case flush with the floor (see Figure 2).

NOTE: There are left and right hand End Kick Plates. The longer end flange faces toward the front of the case with the black side out. The End Kick Plates fit over the ends of the front and back kick plates and flush to the floor.

8. Carefully slide the End Trim Panels back into position on the case and push and reinstall the retaining nuts.

9. This unit is designed to be sealed to the floor after it is installed – to conform to NSF Standard 4.

Use Dow Corning RTV # 732 Multi-purpose Sealant or equivalent silicone sealant to seal the Kick

Plates to the floor around the full perimeter of the case.

10


End Panel Mounting

Attach the End Panels to the ends of the case(s) as shown in Figure 2 using the shoulder screws provided. For Glass End Panels only, slide the plastic bushings provided over the shoulder screws before inserting the screw into the glass panel. Be careful that the screws do not bind in the holes in the glass panel.

Figure 2. Floor Model - End Kick Plate & End Panel Mounting

11


Pedestal Model

Leveling

Deli cases must be installed level to insure proper operation and alignment to adjoining equipment. Use a carpenter’s level and begin leveling from the highest point of the store floor.

1. Level the case using the leg levelers at the corners of the pedestals (see Figure 3).

2. Raise the low end of the case to level it, do not lower the high end.

3. Check for level side-to-side and front-to-back.

Figure 3. Pedestal Model - Leveling and Cover Attachment

Pedestal Wrap Installation

1. Remove the Rear Trim from the back of each Pedestal by removing the (4) retaining screws on each Rear Trim.

2. Spread the side panels of the Pedestal Wraps apart far enough to fit around Pedestal and slide the Pedestal Wrap around the Pedestal from the front as shown in Figure 3. Make certain the

Pedestal Wrap fits flush to the floor.

NOTES: There are left and right hand Pedestal Wraps. The taller side panel on each Pedestal

Wrap is oriented to the end of deli case.

The short return flange on the front of each Pedestal Wrap side Panel will insert into the large cut out in the front of the Pedestal. The back flange of each Pedestal Wrap side Panel will wrap around the back of the Pedestal.

12


3. Place the Rear Trim in position on the back of each Pedestal. The Pedestal Wraps fit inside of the side flanges of the Rear Trim. Thread the Rear Trim retaining screws into the J nuts on the

Pedestal. Make certain the Rear Trim is flush with the floor and tighten the retaining screws.

4. The Pedestals are to be sealed to the floor if required by local health codes. Seal the pedestal covers to the floor using a silicone-type sealant (Dow Corning RTV #732 or equivalent).

End Panel Mounting

Attach the End Panels to the ends of the case(s) as shown in Figure 2 using the shoulder screws provided. For Glass End Panels only, slide the plastic bushings provided over the shoulder screws before inserting the screw into the glass panel. Be careful that the screws do not bind in the holes in the glass panel.

Counter Model

Counter Mounted cases must be mounted on a level surface that can support the weight of the case and it contents. Use a carpenter’s level as shown in Figure 1 to level the case.

These cases are to be sealed to the counter if required by local health codes. Seal the perimeter of the case to the counter using a silicone-type sealant (Dow Corning RTV #732 or equivalent).

Attach the End Panels to the ends of the case as shown in Figure 2 using the shoulder screws provided.

For Glass End Panels only, slide the plastic bushings provided over the shoulder screws before inserting the screw into the glass panel. Be careful that the screws do not bind in the holes in the glass panel.

13


Wiring

A wiring diagram for the specific model is shipped with the deli case. The wiring diagram provides electrical specifications, an electrical schematic and a parts list. Refer to this wiring diagram and the deli case serial number plate for electrical information.

Field wiring must be sized for the components amperes printed on the serial number plate. Actual ampere draw may be less than specified.

All electrical connections should be in compliance with the NEC and all applicable local codes by a licensed electrician. Refer to the wiring diagram furnished with your case for the electrical specifications.

The power supply connection is located on the bottom or back of the well compartment of the case (see

Figure 4). A ¾ knockout is provided at each location for the required conduit connection. A second power supply connection for the oven is provided on oven combo cases.

A wiring cutout is provided in the base bottom pan on floor model cases (see Figure 5). Refer to the case specification sheet for the location of this cutout. Remove the cover over the wiring cutout and route the wiring through the cutout. Cut a hole of the proper size and location in the cover for the conduit to pass through and reinstall the cover.

Figure 4. Wiring Access

14


Case Joining Trim

1. After leveling the cases and bolting the bases together, bolt the canopies together as shown in

Fig. 6 with a ¼”-20 x ¾” Hex Head Screw and Keps Nut.

2. Mount the Upper Front & Base Front Joint Trims by holding them in place and marking the hole locations on the case.

3. Make certain the joint covers are centered on the joint and that they align vertically with each other.

4. Drill the case holes 5/32” and attach joint covers with screws provided. Before tightening the top screws of the Upper Front Trim, slide the Counter Front Trim in place between the screw head and the Upper Front Trim.

5. Apply a bead of silicone sealant inside the Counter End Joint Cover and slide the cover over both counter end walls. Apply a bead of silicone sealant to seal the open front of the Counter End

Joint Cover.

6. Attach Bumper Ends and Bumper Mounting Base to the front of the cases, centered on the vertical surface of the upper front of the case. Cut the Bumper Top to length to fit between the

Bumper Ends and snap into place.

Figure 5. Joining Cases

15


Case Divider Glass

A Divider Glass is typically installed between a self-service case with reach-in front glass and a full service case with full front glass. The Divider Glass is installed on the full service case side of the joint.

1. Mount the Upper Glass Retainer by first removing the outer (2) retaining screws from the canopy heater reflector on the end of the deli case the Divider Glass is being installed. Insert the screws through the outer set of holes in the Upper Glass Retainer (see Figure 6) and attach the Upper

Glass Retainer to the canopy.

2. Place the Lower Glass Retainer in position against the inside of the counter end wall on the end of the deli case the Divider Glass is being installed. The side of the Lower Glass Retainer with (2) vertical walls is placed against the counter end wall.

3. Apply a bead of silicone sealant inside the Counter End Joint Cover and slide the cover over both counter end walls and the Lower Glass Retainer. Apply a bead of silicone sealant to seal the open front of the Counter End Joint Cover.

4. Slide Divider Glass in place through the Upper and Lower Glass Retainers.

Figure 6. Divider Glass Installation

16


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 perform electrical repair.

Scheduled Maintenance

Use the following table to help manage scheduled maintenance activities.

Activity

Daily User Case Clean the entire Case. Refer to the cleaning procedure below.

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. Turn the machine ‘off ‘ and allow it to cool down.

2. Remove any food pans.

Using abrasive cleaners may damage the cabinet finish. Use only a mild soap and water solution.

Never steam clean or get excess water in the interior of the cabinet as this can damage unit.

This appliance is not intended to be cleaned with a water jet.

3. Use a mild soap and water solution to clean parts.

4. Sponge the inside and outside with a mild soap and water solution.

5. Wipe the parts and cabinet dry with a soft, clean cloth.

17

Hot Food Deli Case Maintenance

Well Numbering Convention

Facing the case from the Customer side, Well 1 is on the far right-hand end of the case. The well number increase sequentially from right to left.

Troubleshooting

Refer to the table below for troubleshooting information.

Disconnect the case power supply by turning OFF the circuit breaker in the power supply service panel before performing any diagnostic testing.

Case Not Operating

(Clear pilot light not illuminated)

Case Not Operating

(Clear pilot light illuminated)

Holding Temperature Not

Adequate

Individual Heating Element Not

Heating

Control displays PL# and beeps every second (# specifies number problem well).

Control displays PH# and beeps every second (# specifies

number problem well).

No Power to the case.

Power switch is off.

Check circuit breaker or fuses at building power panel.

Reset the power switch.

Control Safety Interlock circuit has shut case off because one of the well temperature probes reached a preset value.

Case and food pans have not been preheated.

Product is below 160

° F when loaded into case.

One or more heating elements not operating properly.

Failed temperature probe, temperature probes not connected to control in proper sequence, well heating elements not connected to control in proper sequence.

Refer to the preheating section of

Operators Manual.

Check product temperature before loading the case.

Troubleshoot as described below.

Loose wire or bad connection.

Failed Heating Element.

Failed Output on Control

Board.

Probe low, shorted.

Measured temperature

< 40°F.

Probe high, open. Measured temperature

> 550°F.

Identify and repair wire connection.

Replace failed Heating Element.

Replace entire Control Board.

Replace failed temperature probe for specified well.

Replace failed temperature probe for specified well.

PL and PH messages can appear shortly after case is turned ON.

Control displays TL# and beeps every second (# specifies number problem well).

Temperature low, well probe temperature more than 25°F below set point.

Loose wire, failed heating element, failed controller.

Control displays TH# and beeps every second (# specifies

number problem well).

Temperature high, well probe temperature more than 40°F above set point.

TL and TH messages will not appear until after the 20 minute stabilization period.

18


Touch Screen Display Not

Functioning (Properly)

Damaged communication cable.

Failed Control Touch Screen

Display.

Failed Control I/O Board.

Maintenance

Replaced damaged cable.

Replace failed Control Touch

Screen Display.

Replace failed Control I/O Board.

Replace failed Light Bulb(s)

Light Bulb(s) Do Not Illuminate

when Power is turned On

Failed Light Bulb(s)

Fuse(s) Blown

Failed Ballast

Locate and correct cause, then replace blown fuse(s).

Replace failed Ballast

19

Hot Food Deli Case Control Service

Control Service

Accessing Control Panel

The main control panel is located on the back left end of the case, below the counter. To access the controls and the heating elements behind the control panel, remove the (2) screws at the top of control panel and allow the control panel to hinge panel open (see Figure 7).

To access the controls, remove the (6) screws securing the control back cover panel and remove the cover.

Note: The control back cover panel must be reinstalled when service is complete.

To access the balance of the heating elements and temperature probes on all cases except 3 well cases remove the screw(s) at the top of the heater access cover. Remove the panel by pulling the top out away from the case then lift straight up on the panel.

Control Back Cover

Heater Access Cover

Remove to access controls

Remove to access heaters

Figure 7. Accessing Control Panel

Electrical Component Replacement

Light Fuses

1. Disconnect the case power supply by turning OFF the circuit breaker in the power supply service panel.

2. Remove the fuses from the fuse holders by unscrewing the fuse holder top caps (See Figure 8.)

3. Check the fuses for continuity with an Ohm meter.

4. If one or both of the fuses are blown, locate and correct the cause of the fuse failure before replacing the fuses.

20


5. Replace blown fuses with the factory specified fuses only. Contact the BKI Technical Service

Department for the correct fuses.

6.

Reinstall the fuses in the fuse holders and tighten the top caps.

7. Turn the power supply to the case ON.

Figure 8. Control Panel Components

Light Ballast(s)


2. Remove wires from ballast terminals by depressing the release button for each wire with a 1/8” flat screwdriver (see Figure 9) then pull the wire out of the retainer.

3. Remove the (2) retaining nuts using a 3/8” nut driver and remove the failed ballast.

4. Place the replacement ballast over the mounting studs oriented as shown in Figure 8. Reinstall and tighten the (2) retaining nuts.

5. Insert the wires into the corresponding retainers on the replacement ballast. Wires labeled “B” correspond to “Blue”, wires labeled “Y” correspond to “Yellow” and wires labeled “R” correspond to “Red”. The wire labeled “8” inserts into the “Line” retainer and the wire labeled “9” inserts into the “Neutral” retainer. (On units with two ballasts the wires are labeled B1, Y1 and R1 for one ballast and B2, Y2 and R2 for the other ballast. Do not mix these wires between the two ballasts.)


Figure 9. Light Ballast Wiring

Control Board


2. Unplug connectors J1, J2, J3, J4, J5, J6, J7 and the RS-232 connector (see Figure 10) from the

Control Board by pulling straight up on the connector. On 3 well cases connectors J6 and J7 will not be present.

21


3. Unplug the Touch Screen Cable (see Figure 10) by depressing the tab on the outside of the connector and pulling the connector straight up.

4. Remove the (8) retaining nuts using a 3/8” nut driver and remove the failed Control Board.

5. Install the replacement Control Board over mounting studs in the same orientation as the original.

Reinstall and tighten the (8) retaining nuts.

6. Set dip switch (see Figure 10) on replacement Control Board to match that of the original Control

Board. For reference, these settings are detailed in Figure 10.

7. Plug all connectors into replacement Control Board (see Figure 10).


Figure 10. Light Ballast Wiring

Contactor


2. Loosen Contactor terminal screws and remove wires from Contactor. Record the Contactor wiring connections before removing the wires.

3. The Contactor is mounted on a rail attached to the control panel. A release tab is located on the bottom of the Contactor base on the side adjacent to the fuse holders. To remove the Contactor, insert a flat screwdriver into the release tab and pull the tab away from the Contactor. While the release is pulled out rock that side of the Contactor up then move it toward the control board and lift it out of the control panel.

22


4. Install the replacement Contactor in the same orientation as the original. Tilt the side of the

Contactor with the release tab up slightly and position the Contactor over the mounting rail.

Engage the low side of the Contactor base on the mounting rail then rock the high side down until the release tab snaps in place on the rail.

5. Attach the wires to the replacement Contactor. Be sure to tighten the terminal screws as specified on the Contactor.


Average Temperature Probe


2. Loosen probe clamp retaining screw (see Figure 11) and slide probe out of clamp.

3. Remove probe lead from case wiring, cutting any wire ties necessary.

4. Remove probe wires from control board connector J5 (see Figure 10) as detailed in Figure 12.

Insert wires from the replacement probe into the connector in the same manner. Probe is not polarized so it does not matter which color wire is inserted into either connector section.

5. Carefully route lead from the replacement probe back through the case wiring following the path of the original probe lead.

6. Insert the replacement probe into the clamp. Orient the replacement probe as the original and tighten the retaining screw. Neatly coil any excess lead length from the probe in the bottom of the wiring trough.


Figure 11. Temperature Probes

23


Figure 12. Control Board Connectors

Well Temperature Probe


2. Pull existing probe from probe holder (see Figure 11). It may be necessary to bend the probe up slightly to clear the control panel.

3. Remove probe lead from case wiring, cutting any wire ties necessary.

4. Remove probe wires from control board connector J2 or J7 (see Figure 10) as detailed in Figure

12. Insert wires from the replacement probe into the connector in the same manner. Probe is not polarized so it does not matter which color wire is inserted into either connector section.

5. Carefully route lead from the replacement probe back through the case wiring following the path of the original probe lead.

6. Insert the replacement probe into the probe holder until the probe end seal is up to the probe holder (see Figure 11). Neatly coil any excess lead length from the probe in the bottom of the wiring trough.


Well Heating Elements


2. Disconnect the (2) wires attached to the heating element. Retain the wire terminal mounting screws.

3. Remove the (2) screws retaining the heating element and pull the heating element 4” to 6” out of case. Refer to Figure 13.

24


Figure 13. Well Heating Elements

4. Remove the (2) screws retaining the calrod holder and remove the calrod holder.

5. Pull the heating element the rest of the way out of the case. It will be necessary to remove a hinge leaf from one end of the control panel and lower the control panel to remove heating elements located behind the control panel.

7 Well Cases – to remove the center heating element pull the heating element out to the center strut mount. Turn the heating element 90° and move its sideways until it can be removed form the case.

6. Install the replacement heating element by reversing the above steps.


Canopy Heating Elements


2. Remove screws along the top back edge of the canopy top cover and remove the top cover.

3. Loosen terminal block screws retaining the heating element leads (see Figure 14) and remove the leads from the terminal block.

4. Straighten the leads and slide the fiberglass braid sleeves off of leads. Retain the fiberglass braid sleeves.

5. Remove the (4) screws retaining the reflector and lower the reflector / heating element assembly from the canopy (see Figure 14).

6. Pull the retaining clip from the heating element and remove the heating element from the reflector. Reverse this process to install the replacement heating element in the reflector.

7. Reinstall the reflector / heating element assembly into the canopy making sure the heating element leads are routed through the embossed holes in the canopy.

25


Figure 14. Canopy Heating Elements

8. Slide the fiberglass braid sleeves over the leads of the replacement heating element and attach the leads to the terminal block.

9. Reinstall the top cover onto the canopy.


Touch Screen Board


2. Remove the (2) screws from each side of the touch screen housing cover (see Figure 15).

3. Carefully pull the touch screen housing cover off of its base.

4. Unplug the cable from the touch screen board (see Figure 15) by depressing the tab on the side of the connector and pulling the connector straight out of its socket.

5. Remove fasteners mounting the touch screen board to the housing cover and mount replacement touch screen board.

6. Plug cable into replacement touch screen board and reattach housing cover to its base. Be careful not to pinch or kink cable while reattaching housing cover


26


Figure 15. Touch Screen Board

Pushbutton Switch Contact Blocks


2. Release the contact block mount from the pushbutton operator by depressing the release cam

(see Figure 16).

3. Move the contact block(s) and mount to an accessible position. Loosen the terminal retaining screws and remove the wires from the contact block.

4. Remove contact block from mount by inserting a flat screwdriver into the retaining clip on one side of the contact block and prying up (see Figure 16).

5. Snap replacement contact block into place on the mount. Connect wires to replacement contact block.

6. Slide contact block mount back into position on the pushbutton operator oriented as shown in

Figure 15. Push the contact block mount in until it snaps into place.

27


Figure 16. Pushbutton Switch Contact Blocks


Fluorescent Light Bulbs

NOTE: To maintain UL and NSF safety compliance, light bulbs MUST be replaced with genuine BKI replacement bulbs.


2. Holding failed light bulb at each end, rotate it 90°. Both ends of the light bulb should easily slide out of the lampholders.

3. Hold the replacement light bulb at each end with the contact pins on the ends aligned vertically

(see Figure 17).

4. Insert the replacement light bulb ends into the lampholders and rotate the replacement light bulb

90°. You will feel the dents in the lampholders engage when the replacement light bulb is in the correct position.

Figure 17. Fluorescent Light Bulbs


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Shelf Heating Element


2. Remove the front and back shields from the shelf by removing the thumb screws and set aside.

Figure 18. Shelf Top Disassembly

3. Remove the (4) screws attaching shelf top to the hinges. It will be necessary to remove the screw and nut that attach back of the hinges to the brackets and tilt the shelf forward to access the rear screws (see Figure 18).

4. Remove the screws that attach the shelf top to the shelf base from the front and back flanges of the shelf.

5. Lift the shelf top up enough to loosen the terminal block retaining screws and remove the shelf wires from the terminal block. Move the shelf top to a flat work area.

6. Loosen the terminal block retaining screws and remove the heating element wires from the terminal block.

7. Remove the screws attaching the front of the insulation panel to the shelf top (see Figure 19).

Set the insulation panel and the insulation aside.

8. Pull heating rope out of the existing heating element. Use a roller or other suitable tool to flatten the foil from the existing on the shelf top. DO NOT use your hands to flatten the foil.

29


9. Remove the backing paper from the replacement heating element adhesive and apply the replacement heating element over the remaining foil from the original heating element. Center the replacement heating element inside of the shelf top and orient the replacement heating element wires leads to the same side of the shelf as the original heating element.

10. Replace the insulation in the shelf top. Route the replacement heating element wire leads through the hole in the insulation panel and attach the wire leads to the terminal block.

11. Reattach the screws attaching the front of the insulation panel to the shelf top.

12. Set the shelf top back in place in the case with the terminal block on the shelf top towards the back of the case. Reattach the shelf wires to the terminal block.

13. Mount the shelf top back onto the shelf in the reverse order of disassembly.


Figure 19. Shelf Heating Element

30


Glass Lift-Up Hardware Component Replacement

Gas Springs

1. Raise front glass to the fully open position. It will necessary to prop the glass in this position or have another person hold it open. DO NOT attempt to replace a gas spring without supporting the front glass.

2. Identify the force rating of the failed gas spring. Rotate the body of the gas spring to the last line of text printed on the body. This line of text will be in the format –

7888TV 0300N 355/04 H 10

The second set of characters in this line is the force rating of the gas spring expressed in units of

Newtons. In the example above the force rating of the gas spring is 300 Newtons. The replacement gas spring must have the same force rating as the failed gas spring.

3. Remove the failed gas spring with a HI0110 tool as shown in Figure 20. DO NOT attempt to remove or install a gas spring without using the HI0110 installation tool.

4. Installation the replacement gas spring in the hinge element oriented as shown in Figure 20 with the HI0110 tool. It is important that the rod end of the gas spring faces down.

5. Raise and lower the front glass through its full range of travel 4 or 5 times to activate the replacement gas spring.

6. Verify the glass opens and closes properly. The glass should remain up when in the fully open position. Otherwise the glass should slowing coast to the closed position.

Figure 20. Gas Springs

Front Glass

1. Raise front glass to the fully open position. It will necessary to have another person hold it open.

DO NOT attempt to replace a front glass without assistance.

2. Loosen the clamp screws along the length of the glass clamp (see Figure 21). Loosen the set screws so that they protrude from the glass clamp approximately 1/16 inch.

3. With assistance, lift the front glass out of the glass clamp jaws. Retain the silicone gasket from the clamped edge of the front glass.

4. Slide the silicone gasket in place on the clamped edge of the replacement front glass (see Figure

21).

5. With assistance, lift the replacement front glass into the glass clamp jaws. Make sure the glass is fully seated in the silicone gasket and the glass clamp. Center the replacement front glass in the glass clamp.

31


6. While the assistant holds the replacement glass in the open position, tighten the clamp screws along the length of the glass clamp. Begin at one end and work across the clamp to the opposite end tightening the clamp screws to 30 in-lb.

7. For cases with full front glass it will be necessary to attach a new glass grip to the bottom edge of the front glass. The existing glass grip can not be successfully removed from the existing front glass.

Apply a generous bead of RTV Silicone in the bottom of the glass channel in the glass grip. Slide the glass grip fully onto the bottom edge of the front glass. Center the glass grip on the front glass and secure it in place with masking or similar tape. Clean off any excess silicone with rubbing alcohol. The glass grip will need to set at least 8 hours before the tape can be removed.

Figure 21. Front Glass & Clamp

Glass Clamp

8. Remove front glass as detailed in steps 1 – 3 above.

9. Remove the case end panel closest to the glass clamp. On cases with only one clamp, remove the most accessible end panel.

10. Loosen the clamp screws in the hinge element pivots (see Figure 21).

11. Slide the existing glass clamp out of the hinge element pivots toward the end of the case with the end removed.

12. Slide the replacement glass clamp into the hinge element pivots from the end of the case with the end removed. The “T” shaped extrusion on the bottom of the glass clamp fits into the “T” shaped cut in the hinge element pivots (see Figure 21).

13. Center the glass clamp in its opening and tighten the clamp screws in the hinge element pivots.

32


14. Install the front glass in the replacement glass clamp as detailed in steps 4 – 6 above.

15. Close the glass and make sure it fits in its opening properly. It may be necessary to loosen the clamp screws in the hinge element pivots and move the glass from side to side to locate it properly.

33

Hot Food Deli Case Replacement Parts

Replacement Parts

Use the information in this section to identify replacement parts. To order replacement parts, call your local BKI sales and service representative. Before calling, please note the serial number on the rating tag affixed to the unit.

Control Panel

ITEM # PART #

1 CP0049

CP0050

2 F0400

WH0010

3 F0399

4 F0401

WH0011

WH0012

5 F0402

6 W0093

7 B0090

B0092

8 R0172

9 F0124

FH0001

10 TB0093

TB0094

DESCRIPTION

I/O BOARD, WDCG & SSWG

I/O BOARD, TSWG & TDCG

CONNECTOR, 6 PIN FEMALE

COMPLETE HARNESS, 3 WELL



ADDER HARNESS, 5 WELL

ADDER HARNESS, 7 WELL


CABLE, COMMUNICATION

BALLAST, T5 X 2 LAMPS

BALLAST, T5 X 1 LAMP

RELAY, 4 POLE 40A

FUSE, 4A SC4

FUSEHOLDER, 15A

TERMINAL BLOCK, 6 POLE

JUMPER, TERMINAL BLOCK

34


Pushbutton Switches and Terminal Block

Replacement Parts

ITEM # PART #

1 TB0095

2 F0111

3 S0310

S0364

4 S0311

S0365

5 S0306

6 S0307

7 LI010UK

DESCRIPTION

TERMINAL BLOCK, 4 POLE

TERMINAL, GROUND LUG

PB OPERATOR, FLUSH

PB CAP, GREEN START

PB OPERATOR, EXTENDED

PB CAP, RED STOP

CONTACT BLOCK, N.C.

CONTACT BLOCK, N.O.

PILOT LIGHT, CLEAR

35


Control Display


ITEM #

1

2

PART #

CP0047

CP0051

W0093

DESCRIPTION

TOUCHSCREEN BOARD, WDCG & SSWG

TOUCHSCREEN BOARD, TSWG & TDCG

CABLE, COMMUNICATION

36


Heating Elements & Temperature Probes


ITEM # PART #

1 C0328

C0329

2 B0057

3 T0165

DESCRIPTION

ELEMENT, 1000W 208V

ELEMENT, 1000W 230V

ElLEMENT HOLDER

TEMPERATURE PROBE

37


Light & Heater Canopy


ITEM # PART # DESCRIPTION

1 C0057 HEATER, 400W (208V APPLICATIONS)

C0064 HEATER, 250W (220-240V APPLICATIONS)

2 RF0003 REFLECTOR, HEATER

3 TB0059 TERMINAL BLOCK, 2 POLE CERAMIC

4 FL0044* LAMP, F21T5 (3 & 6 WELL CASES)

FL0045* LAMP, F28T5 (4 & 7 WELL CASES)

FL0046* LAMP, F35T5 (5 WELL CASES)

5 LH0025 LAMPHOLDER, T5

* - To maintain NSF compliance, replace with BKI lamps only

38


Glass Lift Hardware


ITEM # PART #

1 HI0108*

VH0432*

VH0433*

HI0105 *

2 VH0418

HI0109

BKI

BKI

DESCRIPTION

GAS SPRING, 100N

GAS SPRING, 200N

GAS SPRING, 300N

GAS SPRING, 400N

HINGE ELEMENT

FRONT GLASS

GLASS GRIP

HINGE ELEMENT, CORNER

* - Requires HI0110 Installation Tool

39


Heated Shelf


40

Hot Food Deli Case Replacement Parts

ITEM # PART #

1 FL0044*

FL0045*

FL0046*

2 LH0025

DESCRIPTION

LAMP, F21T5 (3 WELL CASES)



LAMPHOLDER

HARNESS, SHELF

F0160

4 C0331

STRAIN RELIEF BUSHING

HEATING ELEMENT, 208V TSWG-3

HEATING ELEMENT, 220 - 240V TSWG-3

HEATING ELEMENT, 208V TSWG-4

HEATING ELEMENT, 220 - 240V TSWG-5

C0335 HEATING ELEMENT, 208V TSWG-5

C0336 HEATING ELEMENT, 220 - 240V TSWG-5

TERMINAL BLOCK, 2 POLE CERAMIC

SCR475 SCREW, #4 x 1” PHILLIPS HEAD

GUARD, FRONT SHELF TSWG-3

FB68946105

FB68944705

GUARD, FRONT SHELF TSWG-3 COMBO


FB68946205

FB68944805

FB68946305

7** FB68962305

FB68944905




GUARD, REAR SHELF TSWG-3


FB68945005

8** SCR263


SCREW, #10-24 X ½” THUMB

* - To maintain NSF compliance, replace with BKI lamps only.

** - Not Shown.

41


Wiring Diagrams

Wiring Diagrams

42

Hot Food Deli Case Wiring Diagrams

43


44


45


46


47


48


49


50


51


52


53


54


55


56


57

Wiring Diagrams

P.O. Box 80400, Simpsonville, S.C. 29680-0400, USA http://www.bkideas.com

Made and printed in the U.S.A

LI0117/0507

BKI WDCG, SSWG, CSWG Hot Food Deli Case Service Manual

Assistant Bot

Hot Food Deli Case

MODELS WDCG, SSWG, CSWG

Service Manual

Warranty Information

Table of Contents

Introduction

Safety Precautions

Safety Signs and Messages

Specific Precautions

Equipotential Ground Plane

Safe Work Practices

Beware of High Voltage

Your Customer Should have an Operators Manual

Safety Labels Must be Clean and in Good

Condition

Operation

Controls and Indicators

Hardware Controls

Software Controls - Default Screen

Software Controls - Viewing Settings

Default Screen

Menu Screen

View Setting Screen

Software Controls - Programming the

Controller

Default Screen

Edit Settings Screen

Preheating

Temperature Adjustment

Operational Guidelines

Unit Shutdown

Installation

Unpacking and Handling

Floor Model

Leveling

Kick Plate Mounting

End Panel Mounting

Pedestal Model

Leveling

Pedestal Wrap Installation

End Panel Mounting

Counter Model

Wiring

Case Joining Trim

Case Divider Glass

Maintenance

Scheduled Maintenance

Cleaning

Well Numbering Convention

Troubleshooting

Control Service

Accessing Control Panel

Electrical Component Replacement

Light Fuses

Light Ballast(s)

Control Board

Contactor

Average Temperature Probe

Well Temperature Probe

Well Heating Elements

Canopy Heating Elements

Touch Screen Board

Pushbutton Switch Contact Blocks

Fluorescent Light Bulbs

Shelf Heating Element

Glass Lift-Up Hardware Component Replacement

Gas Springs

Front Glass

Glass Clamp

Replacement Parts

Control Panel

Pushbutton Switches and Terminal Block

Control Display

Heating Elements & Temperature Probes

Light & Heater Canopy

Glass Lift Hardware

Heated Shelf

Wiring Diagrams