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CB21P11SE
User Manual
30 pgs7.28 Mb0

Winston CB21P11SE, CG15P11SE, CB53P11SE User Manual

SERVICE MANUAL
CVAP VAPOR
OVEN
CB & CG
PROCESS CONTROL MODELS
(.04 Software)
MANUAL REORDER: LIT 6422 REV 0/5-89
FOR MODEL NOS.
CG15P11SE CB21P11SE
CB53P11SE
DANGER
The procedures contained in this manual involve accessing bare electrical terminals and exposes one to voltages capable of producing serious injury or death. Any person attempting diagnosis and/or repair involving removal of panels and/or exposure to live electrical components must be trained or experienced in such service procedures. Disconnect electrical service while performing the procedures listed in this manual.
2345 CARTON DRIVE
WINSTON
PRODUCTS COMPANY
.
LOUISVILLE, KENTUCKY
.
40299
.
(502)491 - 1814
INTRODUCTION
This Service Manual is to be used for the following model CVAP VAPOR OVENS: CB21P11SE, CG15P11SE AND CB53P11SE.
SAFETY
Knowledge of the proper installation, operation and maintenance procedures is an important step to insure safe operation of any equipment. The instructions in this manual are meant as guidelines for proper service of the CVAP VAPOR OVEN. In accordance with generally accepted product safety labeling guidelines for potential hazards, the following two signal words are used throughout this handbook where applicable.
DANGER — — Used to indicate the presence of a hazard which could cause severe personal injury, death, or substantial property damage if warning is ignored.
CAUTION — — Used to indicate the presence of a hazard which could cause minor personal injury or property damage if warning is ignored.
RECOMMENDED TOOLS
Nut driver 5/16” Nut driver 7/16” Nut driver 3/8” Nut driver 5/8” Nut driver 11/32” Flat blade screwdriver 3/16” Flat blade screwdriver Phillips screwdriver #2 Calibration screwdriver Pliers, standard Open end wrench 1/2” Open end wrench 9/16” Open end wrench 3/8” Open end wrench 1” Putty knife Needle nose pliers Allen wrench 5/64” Terminal crimpers Wire strippers Wire cutters Sharp knife Nylon string - 10 feet
1/4”
DANGER:
BARE ELECTRICAL TERMINALS AND EXPOSES ONE TO VOLTAGES CAPABLE OF PRODUCING SERIOUS INJURY OR DEATH. ANY PERSON ATTEMPTING DIAGNOSIS
/OR REPAIR INVOLVING REMOVAL OF PANELS AND/OR EXPOSURE TO LIVE
AND ELECTRICAL COMPONENTS MUST BE TRAINED OR EXPERIENCED IN SUCH SERVICE PROCEDURES. DISCONNECT ELECTRICAL SERVICE WHILE PERFORMING THE PROCEDURES LISTED IN THIS MANUAL.
05/15/89 PAGE1 LIT6422.1
THE PROCEDURES CONTAINED IN THIS MANUAL INVOLVE ACCESSING
TABLE OF CONTENTS
PAGE
INTRODUCTION………………………………………………………………………………. 1
TABLE OF CONTENTS…………………………………………………………………………2
REPLACE AIR THERMOCOUPLE PROBE ASSEMBLY…………………………………..3
REPLACE EVAPORATOR THERMOCOUPLE……………………………………………...4
REPLACE FLOAT and ARM HOLDER ASSEMBLY………………………………………. 5
REPLACE FLOAT and ARM ASSEMBLY…………………………………………………….6
REPLACE FLOAT/NEEDLE VALVE and SEAT…………………………………………….6
REPLACE DOOR LATCH and CATCH………………………………………………………..7
REPLACE POWER CORD………………………………………………………………………7
REPLACE DOOR HINGE………………………………………………………………………..8
REPLACE DOOR GASKET………………………………………………………………………8
DOOR GASKET ADJUSTMENT………………………………………………………………9
REPLACE CASTERS……………………………………………………………………………10
REPLACE EVAPORATOR HEATER…………………………………………………………10
REPLACE AIR HEATER………………………………………………………………………11
REPLACE POWER SWITCH…………………………………………………………………….12
REPLACE START SWITCH…………………………………………………………………….12
REPLACE CIRCUIT BOARD …………………………………………………………………13
REPLACE TRANSFORMER …………………………………………………………………14
REPLACE POWER BOARD ………………………………………………………………… 14
REPLACE KEY PAD …………………………………………………………………………15
REPLACE BUZZER……………………………………………………………………………15
REPLACE MEAT PROBE…………………………………………………………………… 16
PARTS IDENTIFICATION……………………………………………………………17 - 24
SCHEMATIC ……………………………………………………………………………………25
TROUBLESHOOTING………………………………………………………………………26, 27
EXPLANATION OF ERROR MESSAGES ER-1 THRU ER-6 ……………………………27
ZAP WARRANTY AGREEMENT……………………………………………………………28
PARTS ORDERING INFORMATION ……………………………………………………… 29
05/15/89 PAGE 2 L IT 6422.2
REPLACE AIR THERMOCOUPLE PROBE ASSEMBLY
Tools: Phillips screwdriver #2; Flat blade screwdriver 1/4”; Nut driver 3/8”; knife. Component: AIR THERMOCOUPLE PROBE ASSEMBLY Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Loosen and remove the six screws holding the top to side members and remove top. Save
screws for reuse.
3. Loosen and remove the two screws holding power board bracket to escutcheon. Save
screws for reuse.
4. Carefully lay power board bracket back from escutcheon.
5. Disconnect faulty air thermocouple #1 or #2, whichever applicable, from circuit board.
6. Remove the two screws holding the access plate to side of cabinet, (MI thermocouple
probe assembly is behind bottom access plate and #2 assembly behind top). Save screws for reuse.
7. Cut a hole through the insulation at the faulty air thermocouple access hole.
8. Loosen and remove the two hex nuts holding the probe bracket to cabinet side. Save nuts
for reuse. (See picture at right.)
9. Securely tie a thin cord, (preferably
nylon) to the circuit board end of the thermocouple wire.
10. Remove the faulty thermocouple probe
and bracket from cabinet side.
11. Carefully pull thermocouple wire
down through cabinet side. When wire is completely pulled through, remove cord from old thermocouple leaving cord in place.
12. Remove defective probe assembly from
bracket.
13. Insert new probe assembly into bracket
and mount to cabinet side.
14. Securely tie cord to new thermocouple wire. From the top of the unit, carefully pull the
thermocouple wire up through cabinet side. When wire is completely pulled through remove cord and attach thermocouple wires to circuit board.
15. Reassemble cabinet and put unit back into service.
05/15/89 PAGE 3 LIT 6422.3
REPLACE EVAPORATOR THERMOCOUPLE
Tools: Phillips screwdriver #2; Flat blade screwdriver 1/4”; Nut driver 5/16” and 7/16”. Component: EVAPORATOR THERMOCOUPLE Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Loosen and remove the six screws holding the top to side members and remove top.
Save screws for reuse.
3. Loosen and remove the two screws holding the power board bracket to escutcheon. Save screws for reuse.
4. Carefully lay power board bracket back from escutcheon.
5. Disconnect faulty evaporator thermocouple #3 from circuit board.
6. Lay cabinet on side; pad floor to protect cabinet side from scratches. Use care to prevent damage to power cord.
7. Loosen and remove the six screws holding galvanized oven bottom. Remove bottom and insulation adjacent to it. Save all screws for reuse.
8. Loosen and remove hex nut holding thermocouple ring to tank stud. Save hex nut for reuse.
9. Securely tie a nylon cord to the circuit board end of the thermocouple wire.
10. Remove thermocouple ring from tank stud and carefully pull wire down through cabinet side. When wire is pulled clear, untie nylon cord but do not remove cord from cabinet.
11. Attach new thermocouple ring to tank stud.
12. Securely tie nylon cord to the circuit board end of the new evaporator thermocouple.
13. From the top of the unit, carefully pull the thermocouple wire up through cabinet side. When wire is completely pulled through, remove nylon cord and attach thermocouple wires to circuit board.
14. Reassemble cabinet and put unit back into service.
05/15/89 PAGE 4 LIT6422.4
REPLACE FLOAT AND ARM HOLDER ASSEMBLY
Tools:
Open end wrench 9/16”, Open end wrench 1/2’, Phillips screwdriver #2, Nut driver
5/16”, Putty knife.
Component: FLOAT AND ARM HOLDER ASSEMBLY Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Remove shelf racks
3. Loosen and remove the two screws holding the float guard to the cabinet base. Save screws
for reuse.
4. From inside cabinet, carefully pull float assembly upwards exposing tubing
. (See picture below)
5. Remove brass hex nut from bushing, thus freeing tubing from float assembly. Save tubing
and brass nut for reuse.
6. Install tubing to new float assembly.
7. Mount float assembly to cabinet base.
8. Reassemble cabinet and put unit back into service.
05/15/89 PAGE 5 LIT 6422.5
REPLACE FLOAT AND ARM ASSEMBLY
Tools: Phillips screwdriver #2; Needle nose pliers.
Component: FLOAT AND ARM ASSEMBLY
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Remove shelf racks and save for reuse.
3. Loosen the wing nut(s) holding float guard to float assembly. (Older model CVAPs have two Phillip screws securing float guard to float assembly).
4. Using needle nose pliers, push then pull float pin from the arm holding assembly freeing the float and arm.
5. Install new float and arm assembly.
6. Reassemble cabinet and put unit back into service.
REPLACE FLOAT/NEEDLE VALVE AND SEAT
Tools:Phillips screwdriver #2; Needle nose pliers.
Component: NEEDLE VALVE AND SEAT
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water
supply, drain and allow to cool.
2. Remove shelf racks and save for reuse.
3. Loosen the wing nut(s) holding the float guard to the float assembly. (Older model CVAPs have two Phillip screws securing float guard to float assembly).
4. Using needle nose pliers, push then pull the float pin from the arm holder assembly thus freeing the float and arm assembly.
5. Remove needle valve and replace rubber seat.
6. Reassemble cabinet and put unit back into service.
05/15/89 PAGE 6 LIT 6422.6
REPLACE DOOR LATCH AND CATCH
Tools: Flat blade screwdriver 1/4”; Phillips screwdriver #2; Allen wrench 5/64”.
Component: DOOR LATCH AND CATCH
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Loosen and remove the three screws holding latch to door.
3. Loosen and remove the three screws holding catch to cabinet.
4. Install new latch and catch. Prior to final tightening of the catch, insure for proper
alignment as per the latch position. See DOOR GASKET ADJUSTMENT and follow prior to putting unit back into service.
REPLACE POWER CORD
Tools: Flat blade screwdriver 1/4”; Phillips screwdriver #2; Nut driver 5/16”; Standard
pliers.
Component: POWER CORD
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Loosen and remove the six screws holding the top to side members and remove top. Save screws for reuse.
3. Loosen and remove wire nuts from power cord inside terminal box. Save wire nuts for reuse.
4. Loosen and remove the screw holding ground wire in terminal box. Save screw for reuse.
5. Compress and remove power cord strain relief and remove cord.
6. Install new power cord, connect ground wire, attach wire nuts and reinsert strain relief.
7. Reassemble cabinet and put unit back into service.
05/15/89 PAGE 7 LIT 6422.7
REPLACE DOOR HINGES
Tools: Flat blade screwdriver 1/4”; Phillips screwdriver #2; Nut driver 3/8”.
Component: DOOR HINGE
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Remove the two hinge covers from door hinges. Save for reuse.
3. Remove the six hinge screws holding the door to cabinet side. CAUTION: Use care to prevent door from falling while removing these screws. Remove door from cabinet. Save screws for reuse.
4. Loosen and remove the ten screws holding the inner door panel to outer door panel. Save all screws for reuse.
5. Separate the two panels and remove insulation. Save insulation for reuse.
6. Loosen and remove the six screws holding the hinges and spacers to outer door panel. Save screws and spacers for reuse.
7. Install new hinges on door. Perform DOOR GASKET ADJUSTMENT prior to putting cabinet back into service.
REPLACE DOOR GASKET
Tools: Phillips screwdriver #2; Flat blade screwdriver 1/4”, Allen wrench 5/64”.
Component: DOOR GASKET
Procedure:
1. Turn off electrical power, disconnect electrical power supply, disconnect water supply, drain and allow to cool.
2. Loosen and remove the 10 screws holding the inner and outer door panels together. Save screws for reuse.
3. Remove the old gasket by sliding it out of the groove between the inside door panel and the mounting bracket. Install new gasket, perform DOOR GASKET ADJUSTMENT, reassemble cabinet and put unit back into service.
05/15/89 PAGE 8 LIT 6422.8
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