Vulcan-Hart ML-114905, VFB12, ML-114908 User Manual

INSTALLATION &

OPERATION MANUAL

VFB12 ELECTRIC FLASHBAKE® OVEN

VFB12 ML-114905 (Without Power Cord)
VFB12 ML-114908 (With Power Cord)

VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. [phone]

FORM 31020 (4-97)

TABLE OF CONTENTS

GENERAL 3

INSTALLATION 3

Unpacking 3

Location 3

Installation Codes and Standards 4

Assembly 4

Exhaust Duct Installation 4

Electrical Connections 5

Start-up Testing 6

OPERATION 8

Precautions 8

Controls 8

Programming the VFB12

Recipe Options and Limits 10

Lamp Center and Outer Power Levels 10

Creating a "Standard" Cook Method Recipe 11

Creating a Two-Step Cook Method Recipe 13

Operating the VFB12 Oven 15

Cook Cycle Counter 17

Cooking Hints 17

High Through-Put Volume Consistency 17

Blower 18

Cleaning 18

Removing and Installing the Top Lamp Shield 20

MAINTENANCE 21

Inspecting the Oven 21

Fuses 21

Circuit Protectors 21

Flash

Bake Oven 9

Lamp Replacement 21

TROUBLESHOOTING 22

© VULCAN, 1997

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Installation, Operation and Care of

VULCAN MODEL VFB12

FLASH

BAKE® OVEN

KEEP THIS MANUAL FOR FUTURE REFERENCE

GENERAL

Your Vulcan
technology. The baking process is so fast that food retains its natural juices. Bread products brown and become
crisp while vegetables retain their color and texture.

Flash

Bake ovens use visible and infrared light energy to cook by radiative heat transfer. The infrared energy
browns the surface of the food, while the visible light energy penetrates and heats it internally. Using the proper
combination of visible and infrared light energy, the
high quality food.

The

VFB12 Flash

for direct line electrical connection, single phase or 3-phase.

These ovens MUST NOT be stacked one on top of another.

Flash

Bake oven is a versatile oven that employs a revolutionary high quality, high-speed cooking

Flash

Bake oven provides efficient, high-speed baking and

Bake oven may be ordered with a 6-foot (1829 mm) power cord for receptacle installation, or

INSTALLATION

Before installing, verify that the electrical service agrees with the specifications on the rating plate located on
the rear of the oven. If the supply and specifications do not agree, do not proceed with the installation. Contact
your dealer or Vulcan Company immediately.

UNPACKING

Immediately after unpacking, check for possible shipping damage. If the oven is found to be damaged, save
the packaging material and contact the carrier within 15 days of delivery.

Check to make sure you have the following items:

1. Oven (1) 5. Cooking guide (1)

2. 16" (406.5 mm) stainless steel grill (1) 6. Lamp shield scraper (1)

3. Upper lamp shield (1) 7. Menu cards (3)

4. Owners Manual (1)

LOCATION

When deciding oven placement, be sure to consider clearance and available air for oven cooling. If the inlet air
is obstructed or heated, the oven will not operate properly.

Install the oven on a level counter top.

– 3 –

There must be a 3" (76 mm) clearance on each side of the oven. The area behind the oven around the blower
must be kept clear of obstructions and allow for free air circulation.

If your oven is equipped with the power cord and plug, ensure that the cord can be plugged into the appropriate
outlet.

INSTALLATION CODES AND STANDARDS

The VFB12

Flash

Bake oven must be installed in accordance with:

In the United States of America:

1. State and local codes.

2. National Electrical Code, ANSI/NFPA-70 (latest edition). Copies may be obtained from The National Fire

Protection Association, Batterymarch Park, Quincy, MA 02269.

In Canada:

1. Local codes.

2. Canadian Electrical Code, Part 2, CSA Standard C22.1 (latest edition). Copies may be obtained from The

Canadian Standard Association, 178 Rexdale Blvd., Rexdale, Ontario, Canada M9W 1R3.

ASSEMBLY

Install the upper lamp shield into the oven cavity. Be sure the shield is pushed all the way back and is lying flat
in the channels. Refer to REMOVING AND INSTALLING THE TOP LAMP SHIELD in this manual.

Place the grill on the rollers.

EXHAUST DUCT INSTALLATION

A length of flexible exhaust duct may be attached to the oven to vent hot air out of the cooking area. Attach the
duct to the blower assembly (Fig. 1).

Flexible Duct
(By Others)

Fan

Electrical

Junction Box

or

Power Cord Assembly

(If Applicable)

OVEN REAR

Fig. 1

Duct Clamp
(By Others)

Blower

PL-52643

– 4 –

The other end of the duct can be vented into an existing hood, or to the outside in a manner consistent with local
building codes.

The exhaust duct must not be less than 4" (101.5 mm) in diameter, and a recommended maximum length of 4
to 6 feet (1219-1829 mm) , depending on operating conditions. The duct should be made of metal suitable for
high temperature use. Be sure there are no bends in the duct that will restrict air flow. Depending on the
length of the duct required, it may be necessary to have a supplementary exhaust system to ensure adequate
air flow.

The exhaust system must support 135 cfm.

ELECTRICAL CONNECTIONS

WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE

PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES.

WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT
SWITCH TO INDICATE YOU ARE WORKING ON THE CIRCUIT.

WARNING: APPLIANCES EQUIPPED WITH A FLEXIBLE ELECTRIC SUPPLY CORD ARE PROVIDED WITH
A FOUR-PRONG GROUNDING PLUG. IT IS IMPERATIVE THAT THIS PLUG BE CONNECTED INTO A
PROPERLY GROUNDED FOUR-PRONG RECEPTACLE. IF THE RECEPTACLE IS NOT THE PROPER
GROUNDING TYPE, CONTACT AN ELECTRICIAN. DO NOT REMOVE THE GROUNDING PRONG FROM
THIS PLUG.

Measure the incoming power supply with a volt ohmmeter. The supply MUST measure 197 volts with no load
as a minimum.

For Cord-Connected Ovens

Plug the oven into a dedicated circuit outlet of the appropriate NEMA style and rating.

For Hard-Wired Ovens

Have a qualified electrician wire the oven into a properly rated dedicated circuit, connecting to the pigtails in the
junction box on the rear of the oven. Use the appropriate conduit, wire and connectors.

For a Single-Phase 240 Volt Oven

Both "hot legs" must read 120 volts to ground. The "stinger" leg must not be attached to a single-phase oven.

For a 3-Phase 240 Volt Oven Only (Does not apply to 208 Volt Oven)

When connecting a 3-phase 240 volt oven, the "stinger" leg of the supply circuit MUST be connected as follows:

For a hard-wired oven, connect the stinger to the blue pigtail. The blue wire is marked with a label indicating
the stinger connection.

For a cord-connected oven, the stinger must be wired to the receptacle at the pin location opposite the ground
lug (Fig. 2).

The "stinger" leg of a 240 volt, 3-phase system can be easily identified using a voltmeter. The line-to-ground
voltage of the stinger will read approximately 210 volts. The line-to-ground voltage of the other two legs will read
approximately 120 volts.

– 5 –

Ground

Receptacle

"Stinger" Location

Ground

PL-52644

3 PHASE 240 VOLT RECEPTACLE

Fig. 2

ELECTRICAL DATA

AMEN

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21BFV042/802106Wk9.11A65Wk9A34A06R06-41

21BFV042/802306Wk9.11A53Wk9A72*A0405-51

*50A if cord connected.

.xaM

rewoP

.xaM

tnerruC

lacipyT

rewoP

lacipyT
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rekaerB

eziS

START-UP TESTING

After the oven is connected to the supply circuit, perform the following tests to ensure that the oven is operating
properly.

Lamp Test

Turn the oven on by pressing the ON/OFF button. After a few seconds, the display will settle on Recipe 1. At
this point, hold down the 1 button and push the 8 button at the same time. The display will appear as follows:

Would You Like To

Check The Lamps

1 = Yes 2 = No

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Press the 1 button to begin the lamp test. The door will lock and the lamps will each turn on briefly. After each
lamp is turned on successfully, the display will report Lamp OK. If all lamps pass, the oven will automatically
return to the normal operating mode.

If a lamp does not operate properly, the test will stop and the display will show the number of the lamp that failed.

Lamp 2

Lamp Error

------->> Press Any Key <<-------

Press any key to continue the test. At the end of the test, the display will show “Lamp Check Finished.” If a lamp
was reported as an error, re-run the test and verify visually that the lamp did or did not light.

If either of the two light sensors failed to operate during the test, you will see the following message at the end
of the test:

Lamp Check Finished

No Bottom Sensor

If either a lamp or a sensor are reported as a problem, call your local Vulcan Service Office.

Voltage Test

After performing the lamp test, the display will return to Recipe 1. On a new oven, the display will say Empty
Recipe.

Recipe 1 0:00

EMPTY RECIPE

Press the green START button. The door will lock, the blower will start, and a few seconds later the cycle will
end and the door will unlock. Now hold down the 1 button and push the 7 button at the same time. The display
will report the system voltage, single or three-phase, and the phasing if three-phase. (The phasing will show as
“CCW” or “CW.” Either phasing is acceptable. This information is used for troubleshooting only.) The display will
be similar to one of these:

208 Volts

Single Phase

Automatic

240 Volts

Three Phase

Phasing CCW

Automatic

The voltage reported on this screen must match the nominal system voltage supplied to the oven: either 208
Volts or 240 Volts. Call your local Vulcan Service Office if it does not match.

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