Vulcan-Hart VC5E User manual

VC5ED FULL SIZE ELECTRIC
CONVECTION OVEN
VC5ED
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments and skills
required to perform the procedure. Procedures for which you do
not have the necessary tools, instruments and skills should be
performed by a trained Vulcan Service Technician.
The reproduction, transfer, sale or other use of this Manual,
without the express written consent of Vulcan, is prohibited.
This manual has been provided to you by ITW Food Equipment
Group LLC ("ITW FEG") without charge and remains the property
of ITW FEG, and by accepting this manual you agree that you will
return it to ITW FEG promptly upon its request for such return at
any time in the future.
SERVICE MANUAL
A product of Vulcan-Hart 3600 North Point Blvd Baltimore, MD 21222
F45652 (0217)

TABLE OF CONTENTS
GENERAL .................................................................................................. 3
INTRODUCTION ....................................................................................... 3
OPERATION ........................................................................................... 3
CLEANING ............................................................................................. 3
LUBRICATION ......................................................................................... 3
SPECIFICATIONS ...................................................................................... 3
TOOLS ................................................................................................. 3
REMOVAL AND REPLACEMENT OF PARTS ............................................................... 5
COVERS AND PANELS ................................................................................ 5
FAN COVER ........................................................................................... 6
CONTROL PANEL COMPONENTS ..................................................................... 7
COMPONENT PANEL COMPONENTS ................................................................. 7
TEMPERATURE PROBE ............................................................................... 8
HEATING ELEMENTS .................................................................................. 8
BLOWER AND MOTOR ................................................................................ 9
DOOR SWITCH ....................................................................................... 10
ROLLER LATCH ASSEMBLY (INDEPENDENT DOORS) ............................................... 10
DOOR REMOVAL ..................................................................................... 11
HIGH LIMIT THERMOSTAT ........................................................................... 11
INTERIOR LIGHTS .................................................................................... 11
COOLING FAN ........................................................................................ 12
SERVICE PROCEDURES AND ADJUSTMENTS ........................................................... 14
TEMPERATURE CONTROL CALIBRATION ........................................................... 14
SOLID STATE TEMPERATURE CONTROL TEST ..................................................... 15
TEMPERATURE CONTROL BOARD FAULT INDICATOR .............................................. 15
TEMPERATURE PROBE TEST ....................................................................... 16
HEATING ELEMENT TEST ............................................................................ 16
BLOWER ADJUSTMENT .............................................................................. 17
DOOR STRIKE ADJUSTMENT (INDEPENDENT DOORS) ............................................. 17
ELECTRICAL OPERATION ................................................................................ 18
COMPONENT FUNCTION ............................................................................ 18
COMPONENT LOCATION ............................................................................. 19
SEQUENCE OF OPERATION ......................................................................... 24
WIRING DIAGRAMS .................................................................................. 26
TROUBLESHOOTING ..................................................................................... 30
VC5ED ................................................................................................ 30
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN
© VULCAN 2017
F45652 (0217) Page 2 of 31

GENERAL
INTRODUCTION
FEATURES
MODEL CAVITY DEPTH TEMPERATURE
CONTROL DOORS (50/50) COOK TIMER
VC5ED 26.5" Solid State Independent Digital
NOTE: Stainless steel doors with window (standard).
OPERATION
Refer to Installation & Operation manual for
procedures related to Installation, Operation and
Cleaning. https://my.vulcanfeg.com/resourcecenter/
vulcanwolfberkel/default.aspx
CLEANING
Refer to Installation & Operation manual for
procedures related to Installation, Operation and
Cleaning. https://my.vulcanfeg.com/resourcecenter/
vulcanwolfberkel/default.aspx
LUBRICATION
• Cavity blower motor has sealed bearings and
requires no additional lubrication.
• HUSKEY™ TF-1000 grease or equivalent high
temperature non-stick grease.
SPECIFICATIONS
AMPERAGE - 3 PHASE/ 60HZ
MODEL
TOTAL
POWER
(KW)
PER LINE 1RECOMMENDED CIRCUIT
PROTECTION 2
208V 240V 480V 208V 240V 480V
VC5ED 12.5 35 33 15 45 40 20
NOTES:
1 Amperage values in the table are nominal. Tolerance is +5/-10%.
2 Complied in accordance with National Electric Code, ANSI/NFPA 70, latest edition
AMPERAGE - 1 PHASE/ 60HZ
MODEL
TOTAL
POWER
(KW)
PER LINE 1RECOMMENDED CIRCUIT
PROTECTION 2
208V 240V 480V 208V 240V 480V
VC5ED 12.5 60 52 26 80 70 35
NOTES:
1 Amperage values in the table are nominal. Tolerance is +5/-10%.
2 Complied in accordance with National Electric Code, ANSI/NFPA 70, latest edition.
SPECIFICATION SHEET TOOLS
Standard
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - GENERAL
Page 3 of 31 F45652 (0217)

1. Standard set of hand tools.
2. VOM with minimum of NFPA-70E CATIII 600V,
UL/CSA/TUV listed. Sensitivity of at least
20,000 ohms per volt. Meter leads must also be
rated at CAT III 600V.
3. Clamp on type amp meter with minimum of
NFPA-70E CAT III 600V,UL/CSA/TUV listed.
4. Temperature tester (thermocouple type).
5. ESD (Electrostatic discharge) Protection Kit.
Special
1. Gear Puller to remove blower.
2. RTV sealant, 736 DOW silicone high temp (P/N
542133) or equivalent.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - GENERAL
F45652 (0217) Page 4 of 31

REMOVAL AND REPLACEMENT OF PARTS
COVERS AND PANELS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Bottom Front Cover
1. Remove four screws, two from each side of
bottom cover, then remove cover from oven.
Fig. 1
2. Reverse procedure to install. Verify bottom cover
is seated under front plate.
Fig. 2
Right Side - Front Panel
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Loosen two screws near front of oven, which
secure bottom front cover.
2. Loosen screws on left side of front panel and top
cover screw.
3. Remove screws along right side and bottom of
front panel.
Fig. 3
4. Slide right side front panel out.
5. Reverse procedure to install.
Right Side - Rear Panel
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove two middle screws along right side of
rear panel.
2. Remove screws along left side of rear panel.
3. Remove bottom screws on rear panel.
4. Loosen top and bottom screw along right side of
rear panel.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
Page 5 of 31 F45652 (0217)

Fig. 4
5. Slide right side rear panel up and to the right to
remove.
6. Reverse procedure to install.
Left Side Panel
1. Remove screws along right side, middle left side,
and bottom.
2. Loosen screws on top and bottom on left side of
panel.
3. Loosen two screws near front of oven, which
secure bottom front cover.
Fig. 5
4. Lift up and pull away to remove.
5. Reverse procedure to install.
Control Panel
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove three screws on right side which secure
control panel, then lift up and pull away.
Fig. 6
2. Disconnect temperature probe leads from solid-
state temperature control.
3. Unplug wire harnesses connector to control
panel components.
4. Unplug Ground wire from control panel.
5. Reverse procedure to install.
FAN COVER
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove racks.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
F45652 (0217) Page 6 of 31

2. Lift fan cover up and out of oven.
Fig. 7
3. Reverse procedure to install.
CONTROL PANEL COMPONENTS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove CONTROL PANEL.
2. Remove component being replaced.
3. Reverse procedure to install replacement
component.
4. Check oven for proper operation.
Fig. 8
NOTE: Panel with standard controls shown.
COMPONENT PANEL
COMPONENTS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove RIGHT SIDE PANEL.
NOTE: If right side panel is not accessible, this
component can be service by removing CONTROL
PANEL.
2. Disconnect wire leads to component being
replaced.
3. Remove component.
4. Reverse procedure to install component.
5. Check oven for proper operation.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
Page 7 of 31 F45652 (0217)

TEMPERATURE PROBE
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove RIGHT SIDE PANEL.
NOTE: If right side - front panel is not accessible, this
component can be serviced by removing CONTROL
PANEL.
2. Disconnect the probe leads (1, Fig. 9) from the
solid state temperature control.
Fig. 9
3. Remove the racks from inside cavity.
4. Remove the probe guard.
Fig. 10
5. Remove probe by pushing it through the oven
wall opening (2, Fig. 9) in control panel area.
6. Reverse the procedure to install the replacement
probe.
7. Adjust the temperature control. Refer to: SOLID
STATE TEMPERATURE CONTROL TEST .
HEATING ELEMENTS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove RIGHT SIDE - REAR PANEL.
2. Disconnect element wire connectors.
Fig. 11
3. Remove racks from cavity.
4. Remove FAN COVER.
Loosen element screws on side wall.
5. Remove screws on back wall holding brackets.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
F45652 (0217) Page 8 of 31

6. Pull elements forward, then away from right wall.
Fig. 12
7. Reverse the procedure to install the replacement
heating element.
BLOWER AND MOTOR
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Take out the racks and rack supports.
2. Lift off FAN COVER.
3. If replacing:
A. Blower Only - Loosen bolts on blower hub
and using a bearing puller, remove blower
from motor shaft.
1) Reverse procedure to install and
perform BLOWER ADJUSTMENT.
B. Motor - perform step 3A and continue
procedure.
4. Remove bolts that secure the motor mounting
plate to the rear wall.
Fig. 13
5. Place a piece of cardboard on the bottom of the
oven cavity to protect its surface from any
damage during motor assembly removal.
6. Pull the motor assembly into the oven cavity and
place it on the cardboard.
7. Remove the junction box cover from the motor,
disconnect lead wires and remove the conduit.
8. Remove motor mounting bolts and flat washers
then lift the motor from the mounting plate.
9. Position the replacement motor on the motor
mounting plate and install mounting bolts and
washers. Hand tighten mounting bolts only.
Fig. 14
10. Reconnect lead wires at the motor, replace
conduit and junction box cover.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
Page 9 of 31 F45652 (0217)

NOTE: Check data plate on motor for wiring
schematic. The motor must rotate clockwise when
viewed from the shaft end.
Fig. 15
11. Slide blower onto motor shaft until hub is flush
with end of shaft then tighten bolts.
12. Adjust motor position until blower is parallel to
motor mounting plate, Refer to: BLOWER
ADJUSTMENT.
13. Position motor mounting plate on the rear wall
and secure with screws and washers.
14. Replace the baffle panel.
15. Remove cardboard from the bottom of the oven
cavity.
16. Check oven for proper operation then replace
rack guides and racks.
DOOR SWITCH
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove BOTTOM FRONT COVER.
2. Unscrew nut (Fig. 16) holding door switch.
3. Pull door switch and washer out through bottom
panel opening.
Fig. 16
4. Disconnect lead wires to door switch.
5. Reverse procedure to install replacement switch.
ROLLER LATCH ASSEMBLY
(INDEPENDENT DOORS)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove the screws that attach roller latch
assembly to door.
VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - REMOVAL AND REPLACEMENT OF PARTS
F45652 (0217) Page 10 of 31