Wells DABC-1 Service Manual

DUAL ACCESS BISCUIT CABINET

WELLS MODELS DABC-1PS

and DABC-1TL

This equipment chapter is to be placed in the Holding Cabinets Section of the Equipment Manual.

MANUFACTURED EXCLUSIVELY FOR

McDONALD'S

WELLS MANUFACTURING

2 ERIK CIRCLE VERDI, NEVADA 89439

PHONE: 1 (702) 345-0444

TOLL FREE: 1 (800) 777-0450

FAX #: 1 (702) 345-0569

TABLE OF CONTENTS

WARRANTY......................................................................................................................... Page 2

INTRODUCTION.................................................................................................................. Page 2

SAFETY................................................................................................................................ Page 2

PARTS IDENTIFICATION/FUNCTION/PHOTOS..............................................................Page 3

HARDWARE IDENTIFICATION........................................................................................Page 19

EQUIPMENT SET UP AND CLOSE PROCEDURES .....................................................Page 20

TROUBLESHOOTING....................................................................................................... Page 22

PARTS ORDERING/SERVICE INFORMATION.............................................................. Page 24

NON-SCHEDULED MAINTENANCE.................................................. ...........................Page 24

WIRING PICTORIAL ..........................................................................................................Page 36

WIRING DIAGRAM............................................................................................................Page 38

This manual is for the exclusive use of licensees and employees of McDonald's Systems, Inc.

Reprinted in April, 1989 The United States of America

DUAL ACCESS BISCUIT CABINET

Models DABC-1PSP and DABC-1TL

PRODUCT FEATURES

• Fully adjustable water and air temperatures.

• Front and rear doors allow loading and unloading from either end for efficient workflow.

• Adjustable solid-state electronic thermostat senses and displays accurate temperature.

• Built-in three channel timer displays that can be operated from both front and back of unit.

• Signal light located on both front and rear to indicate that opposite door is open.

• Audible and visual low water indicator.

• Heat ON indicator lights for both air and water.

• LED digital temperature display (F or C) for air or water - select by switch.

• Easy to clean water pan with one multi-function probe for low water level and temperature.

• All stainless steel construction.

• Cabinet designed for floor installation. Shipped with casters.

DIMENSIONS

INSTALLED SHIPPING

MODELS

DABC1PSP DABC1TL

DIMENSIONS DIMENSIONS

W D H

20 1/4" 29" 33" 175 27 3/8" 33 3/4" 36 1/8” 204

WEIGHT

W D H

WEIGHT

ELECTRICAL INFORMATION Model DABC-1PSP:

Voltage: 208V, three phase, four wire. Power: 1. 1 KW, for amperage refer to table on reverse side. Cabinet is provided with a 10-foot cord with pin-and-sleeve connector for power, and a 2-foot cord with pinand-sleeve auxiliary receptacle for 15 amp, 120V unit only.

Model DABC-1TL: (Replacement only) Voltage: 120V, single phase. Power: 1. 1 KW, for amperage refer to table on reverse side. Cabinet is provided with a 10-foot cord with a NEMA L5-20P twist-lock for power and NO auxiliary appliance connection.

PRODUCT FINISH Stainless steel top. front, sides and back.

PRODUCT WARRANTY The DABC-1PSP and DABC-1TL Dual Access Biscuit Cabinets manufactured by Wells are warranted to be free from defects in materials and workmanship for a period of one year from the date of original installation and is for the benefit of the original purchaser only. This warranty does not apply to damage resulting from fire, water, burglary, accident, abuse, misuse, acts of God, faulty installation including improper electrical supply.

THIS WARRANTY IS THE COMPLETE AND ONLY WARRANTY, THERE BEING NO OTHER WARRANTIES, EXPRESSED OR IMPLIED IN LAW OR IN FACT, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF MERCHANT-ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, AND/OR FOR DIRECT, INDIRECT. OR INCONSEQUENTIAL DAMAGES IN CONNECTION WITH WELLS' PRODUCTS.

Wells' obligation under this warranty is limited to the repair of defects or replacement without charge by a WELLS factory authorized service agency or one of its sub-service agencies. This service will be provided on customer's premises.

DUAL ACCESS BISCUIT CABINET

Models DABC-1PSP and DABC-1TL

ELECTRICAL SPECIFICATIONS

AMPS PER LINE THREE PHASE MODEL VOLTS KW

LI L2 L3 N DABC-1PSP 208 1. 1 10 15 - 25 - DABC-1TL 120 1. 1 - - - - 8. 8

NOTE: 4 WIRE 3 PHASE L3 NOT USED

AMPS SINGLE PHASE

Wells Manufacturing Company

2 Erik Circle, P. O. Box 280 • Verdi, NV 89439

(702) 345-0444 • FAX: 702-345-0569 TOLL-FREE

FAX: 800-356-5142, for orders only

1994 Wells Manufacturing Company Printed in U. S. A. Item No. 43958 B

WARRANTY STATEMENT

The Dual Access Biscuit Cabinet manufactured by Wells is warranted to be free from defects in materials and workmanship for a period of one year from the date of original installation and is for the benefit of the original purchaser only, BUT NOT AGAINST DAMAGE CAUSED BY ABUSE, FAULTY INSTALLATION, INCLUDING IMPROPER ELECTRICAL CURRENT. THIS WARRANTY IS THE COMPLETE AND ONLY WARRANTY, THERE BEING NO OTHER WARRANTIES, EXPRESSED OR IMPLIED IN LAW OR IN FACT, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF MERCHANT ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, AND/OR FOR DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH WELLS PRODUCTS.

Please contact the Service Department: Wells Manufacturing Company, P. O. Box 280, Verdi, Nevada 89439; to arrange service or for additional information and other details concerning the product and/or this warranty.

INTRODUCTION The commercial Dual Access Biscuit Cabinet is

designed to hold food at a desired serving temperature and moistness plus allow access to the food product from either the front or the rear of the cabinet. Both models have built-in 3 channel product timers that can be activated from either the front or the rear of the cabinet.

The Model DABC-1 PS is configured with an IEC 309 Pin & Sleeve plug and connector for the main power and auxiliary device connection.

WARNING: The DABC-1 PS operates on 120 VAC. The power connection has been designed for 208 VAC, 3-Phase-Y, 5-wire, 120/208 split, such that two independent 120 VAC inputs are supplied to the unit. The auxiliary connection is 120 VAC at 15 amp maximum for other appliances, i. e. Marinator Model MDMW-3.

The Model DABC-1TL is configured with a NEMA L520P twist-lock for the power supply connection and NO auxiliary appliance connection is provided.

SAFETY

Knowledge of proper installation, operation and maintenance procedures is essential to ensure safe operation of any equipment. The instructions contained herein are meant as guidelines; major considerations to be kept in mind are:

1. Always have dry hands prior to turning the power switch ON or OFF.

2. Turn OFF the power switch anytime the cabinet is not in use.

3. If an electric shock is felt when touching the cabinet, disconnect the power immediately and call Wells Service Department for assistance and service.

4. Have the electrical power installed by a licensed electrician. Make sure that the equipment is properly grounded.

5. If you find that the electrical cord is frayed, DO NOT PLUG IT INTO THE ELECTRICAL POWER RECEPTACLE. IF IT IS ALREADY PLUGGED IN, DISCONNECT THE PLUG AFTER SHUTTING OFF THE CIRCUIT BREAKER.

6. DISCONNECT THE POWER CORD BEFORE ATTEMPTING ANY REPAIRS AND/OR CLEANING THE UNIT WITH WATER.

7. Allow the unit to cool before cleaning.

8. DON'T EVER SPLASH WATER WITH A HOSE OR OTHERWISE ONTO THE UNIT. WET ELECTRICAL COMPONENTS AND WIRING PRESENT A HIGH SHOCK HAZARD.

9. Follow the cleaning procedures described on the Biscuit Cabinet (Wells) Planned Maintenance System Card #64.

CAUTION: DO NOT OPERATE THE UNIT UNLESS ALL FOUR CASTERS ARE INSTALLED. THE UNIT IS SHIPPED WITH THE CASTERS IN PLACE AND THEY SHOULD NOT BE REMOVED. PERSONAL INJURY AND DAMAGE TO THE UNIT MAY RESULT.

PARTS IDENTIFICATION/FUNCTION/PHOTOS

(DABC-1PS Shown, DABC-1TL Same except as noted)

ITEM

PART NO.

1 62385 Outer Cabinet Top 1 Covers and protects the controls, wiring and components. 2 63045 Front Door Handle 1 Provides access to the unit and secures the door when

3 62391 Front Door Wrap 1 Provides an exterior cover for the cavity door assembly. 4 63042 Swivel Wheel with Brake 2 Allows the unit to be moved about and secures it in place

5 63425 Front Control Panel Sub-

DESCRIPTION QTY. FUNCTION

closed.

when stationary.

1 Used to mount electrical control components.

Assembly

ITEM

PART NO.

10 62405 Cord Strain Relief

11 62378 Electric Conversion Panel 1 Attaches plug/connector assemblies to the unit. 12 56307 Cord 14/3 STO (DABC-1PS

13 62404 Female Connector (DABC-1PS

14 62384 Side Panel 2 Side cover of the unit. (1 per left and right side) 15 56313 Cord 14/4 STO (DABC-1PS

56307 Cord 14/3 STO (DABC-1TL

16 62412 Plug 4-Wire P&S (DABC-1PS

60649 Plug L5-20P (DABC-1TL ONLY) 1

DESCRIPTION QTY. FUNCTION

2 1 Attaches cord to the conversion panel.

DABC-1PS DABC-1TL

2 ft. Transfers electric power to secondary equipment,

ONLY)

1 Connects power to 120 VAC, 15 amp maximum secondary

ONLY)

11 ft. Transfers electric power to the unit.

ONLY)

11 ft.

ONLY)

equipment.

1 Connects the unit to the electrical power.

ITEM

PART NO.

6 63426 Rear Control Panel Sub-

7 62370 Rear Door Wrap 1 Provides an exterior cover for the cavity door assembly. 8 63041 Ridged Wheel 2 Allows the unit to be moved about.

9 62389 Rear Door Handle 1 Provides access to the unit and secures the door closed.

DESCRIPTION QTY. FUNCTION

1 Used to mount electrical control components.

Assembly

ITEM

PART NO.

17 62376 Blank Electrical Conversion

18 60787 Door Hinge 4 Mounts the doors to the cabinet and allows the doors to open

DESCRIPTION QTY. FUNCTION

1 Opposite side cover for power conversion.

Panel

and close. (2 per front and rear door)

ITEM

PART NO.

19 63045 Front Door Striker Plate 1 Latches door to cabinet and houses the door ajar sensor.

20 63212 Tray Rack 2 Holds biscuit tray. (1 for the left and 1 for the right sides of the

21 60794 Crumb Shield 1 Prevents crumbs from falling into the water. 22 62373 Front Door Interior Panel 1 Secures the door gasket and protects the insulation. 23 60820 Front Door Gasket 1 Seal to retain the interior environment.

DESCRIPTION QTY. FUNCTION

cavity)

ITEM

PART NO.

24 61776 Power On Switch 1 Turns the electrical power on or off to the unit. 25 60758 Power Telite (Red) 1 Indicates that the power is on to the unit. 26 60825 Rear Door Ajar Telite (L.E.D.) 1 Indicates when the front door is ajar. 27 62417 Timer Program Switch 1 Programs the desired time into the internal product timer. 28 62418 Timer Operate Switch 3 Starts and stops the internal product timer. 29 62411 Rear Door Gasket 1 Seal to retain the interior environment. 30 63206 Rear Door Interior Panel 1 Secures the door gasket and protects the insulation.

31 62364 Bottom Panel 2 32 62397 Rear Door Ajar Sensor 1 Detects when the rear door is closed or open.

33 62389 Rear Door Striker Plate 1 Latches door to cabinet and houses the door ajar sensor.

DESCRIPTION QTY. FUNCTION

Covers the front and rear lower frame members. (1 in the front and 1 in the rear of the unit)

ITEM

*Not shown

PART NO.

34* 60819 Front Door Insulation

35* 60819 Rear Door Insulation

36 62392 Conduit Bushing 4 Guide for the front and rear thermocouple conduit. (2 each

37 62393 Thermocouple Conduit 2 Conduit for the front and rear air thermocouple wires. (1

38* 56315 Thermocouple Conduit

DESCRIPTION QTY. FUNCTION

1 Thermal seal for the front door.

(not shown)

1 Thermal seal for the rear door.

(not shown)

door)

each, front and rear door)

2 Abrasion barrier between the air sensor thermocouple wires

Insulation Tubing (not shown)

and the thermocouple conduit for the front and rear doors. (1 each front and rear door)

ITEM

PART NO.

39 62367 Front Door Air Sensor 1 Senses the air temperature inside the unit. 40 60789 Front Thermo Bracket 1 Protective guard for the air sensor.

41 62379 Front Air Probe Bracket 1 To hold biscuit oven probe. 42 62413 Rear Door Air Sensor 1 Senses the air temperature inside the unit. 43 60789 Rear Thermo Bracket 1 Protective guard for the air sensor. 44 62379 Rear Air Probe Bracket 1 To hold biscuit oven probe.

DESCRIPTION QTY. FUNCTION

ITEM

*Not shown

PART NO.

45 62388 Front Door Ajar Sensor 1 Detects when the front door is closed or open. 46 63204 Cavity Assembly 1 Provides the interior surface of the unit. 47 62375 Air Heating Element 2 Heats the air within the cabinet. (1 each side)

48 60815 Thermal/Low Water Sensor

49 60807 Water Pan 1 Holds water for humidity. 50 60752 Element Clip 4 Holds the element in place. (2 clips per element)

51* 60799 Side Insulation (not shown) 2 Thermal barrier for both sides of the cabinet, 1 piece per for

DESCRIPTION QTY. FUNCTION

1 Senses temperature and water level within the water pan.

Assembly

each side.

ITEM

PART NO.

52 60782 Outer Bottom Insulation 1 Thermal seal around the water pan. 53 62368 Base Rail 2 Base for the wheels to attach to. (1 per each side of the unit)

54 60751 Inner Bottom Insulation 1 Thermal seal around the water pan. 55 60527 High-Limit Water Thermostat 1 Safety device which prevents excessive water pan

56 50002 Electrical Jumper 1 Connects the water heating element to the high limit

57 60768 Water Heating Element 1 Heats the water in the pan. 58 60810 Water Heater Element Retainer 1 Holds the water heating element in place.

59* 63044 Base Cover Assembly (not

*Not shown

DESCRIPTION QTY. FUNCTION

temperature.

thermostat.

1 Covers the water heating element and associated wiring.

shown)

ITEM

PART NO.

60 61056 Water Pan Gasket 1 Seals the water pan to the bottom of the cavity. 61 61030 Shoulder Washer 1 Water seal and upper sensor insulator. 62 61031 Washer 1 Water seal and lower sensor insulator.

DESCRIPTION QTY. FUNCTION

SIDE VIEW

(BOTTOM OF CABINET)

CROSS SECTION A-A

+ 35 hidden pages