Vulcan Hart CEM6U, CEM20U Operation Manual

ELECTRIC COMBINATION OVEN

MODELS

CEM6U ML-138076

CEM10U ML-138077

INSTALLATION &

OPERATION MANUAL

CEM20U ML-138078

For additional information on Vulcan-Hart or to locate an authorized parts

and service provider in your area, visit our website at www.vulcanequipment.com

VULCAN-HART DIVISION OF ITW FOOD EQUIPMENT GROUP, LLC

WWW.VULCANEQUIPMENT.COM

3600 NORTH POINT BLVD.

BALTIMORE, MD 21222

FORM 37466 (09-10)

ELECTRIC COMBI OVEN

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ELECTRIC COMBI OVEN

TABLE OF CONTENTS

INSTALLATION, OPERATION AND CARE OF ELECTRIC COMBI OVEN ..................................5

GENERAL...................................................................................................................................5

UNPACKING ...............................................................................................................................5

INSTALLATION ...........................................................................................................................5

INSTALLATION CODES AND STANDARDS ...........................................................................5

COMBINATION OVEN STAND ASSEMBLY INSTRUCTIONS ................................................ 6

Unpacking ............................................................................................................................. 6

Assembly ..............................................................................................................................6

LOCATION ..................................................................................................................................7

LEVELING ................................................................................................................................... 7

ELECTRICAL SPECIFICATIONS ..............................................................................................7

Power Supply .......................................................................................................................8

Grounding .............................................................................................................................8

WATER REQUIREMENTS ........................................................................................................8

Water Treatment .................................................................................................................. 8

Water Supply Connection....................................................................................................9

Filter System ........................................................................................................................9

Drain Connection .............................................................................................................. 10

VENT HOOD ........................................................................................................................... 10

BEFORE FIRST USE ............................................................................................................. 10

OPERATION ................................................................................................................................. 11

OPERATING CONTROLS LOCATION.................................................................................. 11

Optional Internal Product Probe ....................................................................................... 11

Oven Vent Valve ................................................................................................................ 12

Oven Convection Fan ....................................................................................................... 12

Cooking Selector Knob ..................................................................................................... 12

Warming - Rethermalization Mode .................................................................................. 13

Combined Cooking............................................................................................................ 13

Convection Cooking .......................................................................................................... 13

Steam Cooking .................................................................................................................. 14

Thermostat Controlled Steam Cooking ........................................................................... 14

Oven Temperature Display .............................................................................................. 14

Oven Temperature Button ................................................................................................ 15

Oven Temperature Selector Knob ................................................................................... 15

Oven Timer Button............................................................................................................ 15

Oven Timer Knob .............................................................................................................. 15

Humidity Control ................................................................................................................ 16

Oven Light Button ............................................................................................................. 16

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ELECTRIC COMBI OVEN

TABLE OF CONTENTS (CONTINUED)

Fan Speed Selector .......................................................................................................... 16

Product Probe Temperature Selector Knob .................................................................... 17

Internal Product Temperature Probe Button ................................................................... 17

COOKING ................................................................................................................................18

Cooking with The Internal Product Probe ........................................................................ 18

Cook and Hold ................................................................................................................... 19

Displaying and Modifying Cooking Settings ..................................................................... 19

Cooking Settings ............................................................................................................... 19

CHANGE COOKING SETTINGS ............................................................................................ 20

Manually Lowering The Oven Temperature..................................................................... 20

Automatically Lowering Oven Temperature .................................................................. 20

DAILY SHUTDOWN ................................................................................................................ 20

EXTENDED SHUTDOWN ...................................................................................................... 20

CLEANING ..................................................................................................................................... 22

OVEN DRAINS ........................................................................................................................ 22

OVEN COMPARTMENT ......................................................................................................... 22

Daily ................................................................................................................................... 22

Weekly ............................................................................................................................... 22

DOOR GASKET ...................................................................................................................... 22

STAINLESS STEEL EQUIPMENT CARE AND CLEANING .................................................. 23

Recommended cleaners for specific situations ............................................................. 24

Review ............................................................................................................................... 24

MAINTENANCE ............................................................................................................................. 25

WATER TREATMENT SYSTEM ............................................................................................ 25

DOOR GASKET REPLACEMENT ......................................................................................... 25

OVEN LIGHT REPLACEMENT............................................................................................... 25

REMOVAL OF LIME SCALE DEPOSITS .............................................................................. 25

MESSAGES AND ALARMS .......................................................................................................... 26

MESSAGES ............................................................................................................................. 26

ALARMS................................................................................................................................... 26

TROUBLESHOOTING .................................................................................................................. 27

SERVICE AND PARTS INFORMATION ...................................................................................... 28

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ELECTRIC COMBI OVEN

INSTALLATION, OPERATION AND CARE OF

ELECTRIC COMBI OVEN

SAVE THESE INSTRUCTIONS FOR

FUTURE USE

GENERAL

Vulcan electric combination ovens are produced with quality workmanship and material. Proper installation, usage and maintenance will result in many years of satisfactory performance. It is suggested that you thoroughly read this entire manual and carefully follow all of the instructions provided.

It is a convection oven and a pressureless steam oven combined into one. The steam is generated inside the oven and circulated by a fan. With the combined oven/steamer, three cooking processes are available: Steam, hot air, and combination. The combined oven may be used to perform these types of cooking:

• Steam Cooking

• Baking

• Stewing

• Browning

INSTALLATION

Before installing, verify that the electrical supply agrees with the specifications on the data plate located on the lower front corner of the right side panel. If the supply and equipment requirements do not agree, do not proceed with the installation. Contact your dealer or Vulcan-Hart immediately.

This oven is shipped pre-wired with one of the following voltages: 208/60/3, 240/60/3 or 480/60/3 VAC.

INSTALLATION CODES AND

STANDARDS

In the United States of America, the oven must be installed in accordance with:

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.

• Grilling

• Braising

• Pre-Cooking

• Reheating

• Defrosting

Unpacking

Each oven is inspected before leaving the factory. The transportation company assumes full responsibility for safe delivery upon acceptance of the shipment.

Immediately after delivery, unpack and check for shipping damage. If the oven is damaged, save the packing material and contact the carrier immediately. There is a fifteen-day limitation on filing freight damage claims with the freight company. Freight damage is not covered under warranty.

3. Vapor Removal from Cooking Equipment, (NFPA-96, latest edition) available from NFPA.

In Canada, Vulcan-Hart ovens must be installed in accordance with:

1. Local Codes

2. Canadian Electrical Code (CSA C22.2 No. 3, latest edition) available from the Canadian Standards Association, 5060 Spectrum Way, Mississauga, Ontario, Canada L4W 5N6

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ELECTRIC COMBI OVEN

COMBINATION OVEN STAND

ASSEMBLY INSTRUCTIONS

Unpacking

Each Combination Oven Stand is inspected before leaving the factory. The transportation company assumes full responsibility for safe delivery upon acceptance of the shipment.

Immediately after delivery unpack and check for shipping damage. If the stand is damaged, save the packing material and contact the carrier immediately. There is a fifteen-day limitation on filing freight damage claims with the freight company. Freight damage is not covered under warranty.

Assembly

NOTE: Discard washers from kit.

Follow these procedures to properly assemble the Adjustable Combination Oven Stand.

1. Remove the adjustable feet from the bottom of the stand.

Allen Cap Screw

Figure 2: Allen Cap Screw Location

3. Push the leg onto the leg support and turn the leg until the threaded holes are visible. Insert the bolts and tighten them. Repeat this step on each leg.

4. Once the legs are installed each leg must be rotated so that the threaded holes, for the tray support, face each other (front and rear). These holes are used to mount a tray support once the oven is installed on the stand. The tray support will be installed after the oven is installed on the stand. If tray support is not used, insert the plastic plugs into the four holes in the base.

Remove

adjustable

feet

Figure 1: Stand Foot Removal

2. Using the 10 mm Allen wrench, loosen but do not remove the cap screw securing the leg support to the stand base.

Align holes

Make sure

holes are

facing

each other

FRONT

Figure 3: Leg with Threaded Holes

in Proper Position

5. Tighten the Allen Cap screws in the base of each leg.

6. Reattach the adjustable feet. The stand is now ready for oven installation.

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ELECTRIC COMBI OVEN

7. Install tray support (if supplied) after oven is installed onto stand. Use the four knurled screws to secure the support to the legs.

FRONT

Figure 4: Assembled

Combination Oven Stand

LOCATION

Allow space for operating the oven. Do not obstruct the ventilation port above the oven. To provide ventilation access, allow 1" of

clearance on the left side of the oven and 2

/2" clearance on the rear side of the oven. A minimum of 18" must be provided on the right side of the oven for operation, cleaning and service. An optional heat shield assembly is required if the clearance is less than 18" on the right side of the oven.

LEVELING

Position the oven in its final installed location. Place a level on the horizontal area of the cabinet. Adjust the feet to level the oven in both the left-to-right and front-to-rear directions.

ELECTRICAL SPECIFICATIONS

The data plate is located on the front lower right side of the oven.

Electrical Specifications Chart

Model Voltage Amperage Kilowatts Phase

CEM6U 208 26 9.4 3

CEM6U 240 25 10.3 3

CEM6U 480 11 9.4 3

CEM10U 208 43 15.5 3

CEM10U 240 40 16.8 3

CEM10U 480 19 15.5 3

CEM20U 208 54 19.5 3

CEM20U 240 48 24.0 3

CEM20U 480 27 22.1 3

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ELECTRIC COMBI OVEN

POWER SUPPLY

Connect the power supply as follows:

Electrical and grounding connections must comply with applicable portions of the National Electrical Code and/or other local electrical codes.

Disconnect the electrical power to the machine and follow Lockout/ Tagout procedures.

1. Remove the right side panel from the oven. The panel is held on by two screws on the bottom and one screw on the top near the back edge.

2. Wire to be sized per the National Electric Code. Use copper wire rated for 125°C max.

3. Route the power supply cable through the cable strain relief.

4. Connect the power supply cable to the terminal block as shown on the label below the terminal block.

5. Fasten the cable clamp firmly.

6. Reinstall the right side panel.

Plumbing connections must comply with applicable sanitary, safety and plumbing codes.

WATER REQUIREMENTS

Proper water quality can improve the taste of the food prepared in the oven, reduce liming in the oven cavity and extend equipment life. Local water conditions vary from one location to another. Ask your municipal water supplier for details about your local water supply prior to installation.

Presence of sediment, silica, excess chlorides or other dissolved solids may lead to a recommendation for alternate form(s) of water treatment. Test the water with a TDS meter or the test strip included with the oven. Other factors affecting steam generation are iron content, amount of chlorination and dissolved gasses.

Water Treatment

A local water treatment specialist should be consulted before installing steam generating equipment. It is recommended that you have your water tested.

Supply Pressure 20-60 psig

L1 L2 L3

Power

Cord

L1 L2 L3

1234567

¥L1¥L2¥

Terminal Block

Wiring Label

Figure 5: Power Supply Cable Connection

Grounding

The oven must be properly grounded. Connect the ground conductor to the terminal block in the position indicated on the terminal block label.

Hardness* Less than 3 grains

Silica Less than 13 ppm

Total Chlorine/ 0 ppm Chloramine**

Chlorides*** Less than 30 ppm

PH Range 7 – 8

Undissolved Solids Less than 5 microns

* 17.1 ppm = 1 grain of hardness

** Total Chlorine of 4.0 ppm is the max limit for the building water supply. A carbon block filter must still be used to remove all Chlorine and Chloramines from the water. Failure to do so will result in corrosion and rust in the cooking cavity which is not covered under warranty.

*** If the Chlorides exceed 30 ppm and the oven is used more than 8 hours during the day in steam or combination mode the cavity will require rinsing every 8 hours. Failure to do so will result in corrosion and rusting of the oven cavity and interior parts. RO water treatment system can be installed to eliminate chlorides from the water and reduce the hardness.

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ELECTRIC COMBI OVEN

If the water supply fails to meet these standards, it will be necessary to install a water treatment system.

The use of strainers or filters will not remove minerals from the water

Water Supply Connection

Connect the treated cold water supply line,

min of

/8" ID, to the 3/4" garden hose inlet on

the underside of the Combi Oven. Connect

the untreated cold water supply line to the

/4" garden hose, also on the underside of the Combi Oven. Refer to Figures 6 and 7.

Unfiltered

water

supply

Filtered

water

supply

A water filter system is required for the water supply line going to the treated water inlet of your Combi Oven. Follow the recommendations for use and installation instructions shipped with the water filter. If a water filter is not installed, the Combi Oven warranty is limited.

NOTE: Failure to properly connect the water

lines will result in equipment failure that is not covered under warranty.

A manual shutoff valve must be provided in a convenient location near the Combi Oven.

Filter System

• In addition to filtration for the control of solids, you must have a carbon block filter installed and maintained. Carbon block filters remove the chlorine and chloramines disinfectants from the water. Chlorine/ chloramines will erode the oven cavity, rack guides, racks, and internal components, which is not covered under warranty. Check with your local water treatment specialist for proper sizing and replacment intervals for the carbon block cartridge.

Figure 6: Water Supply Connection

for CEM6U and CEM10U

L1 L2 L3

Unfiltered Water

Connection

L1 L2 L3

1234567

Filtered Water

Connection

¥L1¥L2¥

Figure 7: Water Supply Connections

for CEM20U

• Water feed lines to the oven must be flushed before final connection. Particles in the water could clog tubing and components that supply water for steam production and drain cooling. If the water supply is not free of sediment or cloudy after several minutes of flushing, a sediment filter must be installed before use.

• If you have purchased a water filter system from Vulcan-Hart, please follow the instructions provided with the filter system. At the time of installation you must register your Combi Oven at www.vulcanhart.com/filterreg or use the reply card supplied with your unit. You will need to register your Combi Oven at each filter change to insure your standard and extended warranty is maintained.

Filter purchase invoices and maintenance records must be provided with warranty claims.

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