Vulcan VSXII Installation Manual

FORM 30011 (2/90)

INSTALLATION, OPERATING, SERVICE

AND PARTS MANUAL FOR

ELECTRIC COUNTER CONVECTION

STEAMER MODEL VSXII

Vulcan service agencies are located throughout the United States. For location

and phone number of one near you, call your local Vulcan dealer.

VULCAN-HART CORPORATION, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791

IMPORTANT

OPERATING, INSTALLING AND SERVICE PERSONNEL

The operating information on this equipment has been prepared for use by qualified and/or authorized operating personnel. All installation and service on this equipment is to be performed by qualified, certified, licensed and/ or authorized installation or service personnel, with the exception of any part marked with a in front of the part number.

To obtain the name and location of an authorized Vulcan service agency, contact your Food Service Equipment dealer.

DEFINITIONS

QUALIFIED AND/OR AUTHORIZED OPERATING PERSONNEL

Qualified or authorized operating personnel are those who have carefully read the information in this manual and are familiar with the equipment's functions or have had previous experience with the operation of the equipment covered in this manual.

1. For the installation of gas piping from the outlet side of the gas meter, or the service regulator when the meter is not provided, and the connection and installation of the gas appliance, qualified installation personnel must be experienced in such work, be familiar with all precautions required, and have complied with all requirements of state or local authorities having jurisdiction. In the absence of local codes, installation must comply with National Fuel Gas Code ANSI Z223.1 -latest edition.

2. For the installation of electrical wiring from the electric meter, main control box or service outlet to the electric appliance, qualified installation personnel must be experienc ed in such work, be familiar with all precautions required, and have complied with all requirements of state or local authorities having jurisdiction. In the absence of local codes, installation must comply with the National Electrical Code ANSI NFPA No. 70 latest edition.

3. For the installation of steam piping from the source of supply to the service inlet of the appliance, qualified installation personnel must be experienced in such work, be familiar with all precautions required, and have complied with all requirements of state or local authorities having jurisdiction.

QUALIFIED SERVICE PERSONNEL

Qualified service personnel are those who are familiar with this equipment who have been endorsed by our company. All authorized service personnel are required to be equipped with a complete set of service and parts manuals and stock a minimum amount of parts for this equipment.

SHIPPING DAMAGE CLAIM PROCEDURE

For your protection, please note that equipment in this shipment was carefully inspected and packed by skilled personnel before leaving the factory. The transportation company assumes full responsibility for safe delivery upon acceptance of this shipment.

If shipment arrives damaged:

1. VISIBLE LOSS OR DAMAGE — Be certain this is noted on freight bill or ex press receipt

and signed by person making delivery.

2. FILE CLAIM FOR DAMAGES IMMEDIATELY — Regardless of extent of damage.

3. CONCEALED LOSS OR DAMAGE — If damage is unnoticed until merchandise is

unpacked, notify transportation company or carrier immediately, and file "concealed damage" claim with them. This must be done within fifteen (15) days of the date the delivery is made to you. Be sure to retain container for inspection.

We cannot assume responsibility for damage or loss incurred in transit. We will, however, be glad to furnish you with necessary documents to support your claim.

PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE

IMPORTANT NOTES FOR ALL VULCAN APPLIANCES

1. These units are produced with the best possible workmanship and material. Proper installation is vital if best performance and appearance are to be achieved. Installer must follow the installation instructions carefully.

2. Information on the construction and installation of ventilating hoods may be obtained from the "Standard for the installation of equipment for the removal of smoke and grease laden vapors from commercial cooking equipment," NFPA No. 96 (latest edition) available from the National Fire Protection Association, Battery March Park, Quincy MA 02269.

3. For an appliance equipped with a flexible electric supply cord, the cord is equipped with a three prong (grounding) plug. This grounding plug is for your protection against shock hazard and should be plugged directly into a properly grounded three prong receptacle. Do not cut or remove the grounding prong from this plug. If the appliance is not equipped with a grounding plug, and electric supply is needed, ground the appliance by using the ground lug provided (refer to the wiring diagram).

(FOR GAS APPLIANCES ONLY)

4. Do not obstruct the air flow into and around the appliance. This air flow is necessary for proper combustion of gases and for ventilation of the appliance. Provisions for ventilation of incoming air supply for the equipment in the room must be in accordance with National Fuel Gas Code ANSI Z223.1 (latest edition).

5. Do not obstruct the flow of flue gases from the flue duct (when so equipped) located on the rear (or sides) of the appliance. It is recommended that the flue gases be ventilated to the outside of the building through a ventilation system installed by qualified personnel.

6. For an appliance equipped with casters, (1) the installation shall be made with a connector that complies with the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 (latest edition), and Addenda, Z21.69a (latest edition), and a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use With Gas Fuel, ANSI Z21.41 (latest edition), and Addenda, Z21.41 a (latest edition), and Z21.41 b (latest edition), and (2) adequate means must be provided to limit the movement of the appliance without depending on the connector and the quick-disconnect device or its associated piping to limit the appliance movement. If disconnection of the restraint is necessary, reconnect this restraint after the appliance has been returned to its originally installed position.

7. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 k Pa).

8. The appliance must be isolated from the gas supply system by closing its individual manual shutoff valve during any pressure testing of the gas supply system at test pressures equal to or less than 1/2 psig (3.45 k Pa).

CAUTIONS

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS EQUIPMENT OR ANY OTHER APPLIANCE.

1. KEEP THE APPLIANCE FREE AND CLEAR FROM ALL COMBUSTIBLE SUBSTANCES.

2. IN THE EVENT A GAS ODOR IS DETECTED, SHUT UNIT(S) DOWN AT THE MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE.

3. POST IN A PROMINENT LOCATION, INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION MAY BE OBTAINED FROM A LOCAL GAS SUPPLIER.

ELECTRIC COUNTER CONVECTION STEAMER MODEL: VSXII INSTALLATION, OPERATING, SERVICE AND PARTS MANUAL INDEX

Your Vulcan Counter Steamer is produced with quality workmanship and material. Proper installation, usage and maintenance will result in many years of satisfactory performance.

The manufacturer suggests that you thoroughly read this entire manual and carefully follow all of the instruc -

DESCRIPTION PAGE

DEFINITIONS OF PERSONNEL (Operating, Installation and Service) and SHIPPING DAMAGE CLAIM PROCEDURE

IMPORTANT NOTES 3 INDEX 4 WATER CONDITIONING 5 DESCRIPTION 5

tions provided. Please retain this manual for future reference.

A data plate with the unit model number and serial number, electrical characteristics, etc., is on the lower left front corner of the body side panel.

(Inside Front Cover)

ELECTRICAL CHARACTERISTICS 6 INSTALLATION 7 SERVICE CONNECTIONS 7 START -UP 8 OPERATING 8 CLEANING 9 COOKING CHART 10-12 SERVICE 13-14 PARTS LIST 15-20 WIRING DIAGRAM 21-23 RECOMMENDED SPARE PARTS LIST 24

WATER CONDITIONING

It is important to furnish the steam generator with soft water to minimize scale formation, which will reduce steam output, cause premature component failure, and shorten equipment life. Most water supplies contain scale producing minerals. As steam is produced by the steam generator, the minerals remain and dissolve into the water. As the concentration of these minerals increases past a certain point, they precipitate from the water and coat the surfaces inside the generator, the heating elements, the steam generator interior surfaces, and water level control probes. Because of the high temperature of these surfaces, the precipitated minerals bake onto them and become very difficult to remove.

This phenomenon causes several problems.

1. The surfaces of the heating devices will become coated with scale, reducing the heat transfer effi ciency. On electric heating elements, the scale will produce hot spots on the elements and cause premature failure of the elements.

2. Water level probes are used in all steam generators, and these too will become coated with scale. In this case, scale will bridge across the probe insulator from the metal extension, which senses the water level, to the boiler shell. Once

the scale is wet, it can prevent the water level control from maintaining the proper water level in the boiler shell. This situation may cause an electric heating element to fail as a result of the element not being adequately covered by water.

All of these problems are common to any manufacturer's steamer regardless of design, but they can all be prevented by furnishing the steam generator with soft water. Vulcan-Hart recommends the water contain no more than 2.0 grains of hardness (TDS) and have a pH of 7.5. This degree of hardness can be easily and inexpensively achieved by the use of a properly maintained water softener. The use of a water meter will determine the water consumption and when the water softener needs regeneration or recharging.

NOTE: The use of strainers, or filters will not remove

minerals from the water. Steamers which have been operated for a period of

time without the benefit of a water softener, and which have developed a heavy scale build up should be cleaned prior to the use of a water softener. Our recommended method used for removing scale is "Descaling" on page 14.

DESCRIPTION

This Vulcan self generating electric counter convection steamer is manufactured with a 7.5 KW electric input. This steamer generates steam in a stainless steel pressureless steam generator located behind the steaming compartment. The sheathed electric elements are mounted inside the steam generator. When the "red" (ON-OFF) operating switch is turned ON the generator automatically fills with water to a preset level. The electric elements are automatically turned ON allowing the water to be heated to a high temperature ready condition (door open or closed). The probes automatically measure the water level allowing the water to fill the

generator to the proper level and automatically maintain the water level necessary for proper operation.

Place full sized 12" x 20" (or half sized) pans in the compartment. Close the door. Press the minutes to cook button(s). Press the start button to begin cooking. When the end of cooking buzzer sounds, open the door and remove the cooked food. The buzzer shuts off. When through cooking for the day, turn the power switch off and the "blown down" cycle automatically begins using the remaining steam to "blow out" the water and loose scale in the generator to the drain.

ELECTRICAL CHARACTERISTICS

208V 230V 240V

Model

VSXII

Model

PH KW AMP KW AMP KW AMP

1 7.5 36.1 7.5 32.6 7.5 31.3

VSXII

3 7.5 20.8 7.5 18.9 7.5 18.1

SERVICE CONNECTIONS

CW Cold Water: 3/8" (9.5mm) tubing to condensor at min 25 to max 50 PSI.

DR Drain: 1" (25 mm) IPS piped to open floor drain. No solid connection. Must be open air gap with a maximum 24" length before the open air gap opening (no bends or elbows in 24"). Total length maximum 6' with only one elbow.

inches

A B C D E F G H J K L M

610

27 1/2

699

457

15 1/8

384

102

TD Trough Drain: Interconnected to main drain (DR).

EC Electric Connection: 1 1/ 2" (38mm)

conduit connection to electrical box.

1 1/2

4 7/8

124

1 1/4

1 1/2

229

254

INSTALLATION

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

WARNING: Plumbing connections must comply with applicable health, safety and plumbing codes.

The Vulcan VSXII is a single compartment pressureless steam cooker that has been factory assembled and tested. The unit has been crated to protect it during transportation.

A. Remove the counter steamer from the carton.

B. It is a free standing unit not to be enclosed. Place

the unit in the desired position on a level counter top. Then mark the 4 corners. Check that there are suffi cient clearances to service the controls, for door swing, etc., so that there will be no problem in making the required supply connections. Minimum clearances are 2" on the sides and 6" on the back for proper air circulation through the louvers on the sides and the rear of the unit, and 6" away from any open heat. A 36" minimum clearance is required at the front for adequate access to the cooking compart ment. Next, set the unit aside to drill four 1/2" holes.

C. Drill 1/2" holes as indicated in the drawing. D. Apply a bead of high grade sealant around the

bottom outside edge of this unit. Failure to comply with this requirement will void the N.S.F. label.

E. Set the unit back on the counter and bolt it down

securely with 3/8-l 6 bolts. When ordered as an option, the Vulcan counter

steamer will have 4 adjustable 4" legs packed in the carton. Screw the legs securely into the bottom corner of the unit. Set the unit on the counter top. Use the levelers supplied with the 4" legs to level the unit using a spirit level. Level left to right and front to back. Steamers should be elevated in the front just enough (approximately 1/16" to 1/8" ) to give proper drainage. (Check level by pouring a little water in the compartment. All of the water should drain).

SERVICE CONNECTIONS___________________________________

The Vulcan counter steamer is a self-contained unit with field replaceable elements rated at 7.5 KW.

A. Water Connection: the unit has a 3/8" copper tube

input to which the water supply line has to be connected.

The 3/8" copper tube supplies water to both the generator tank and to the cold water condenser which condenses the steam entering the drain line. A manual shut off valve (supplied by others) must be provided convenient to the unit to use when removing scale.

B. Electrical Connection: The voltage and phase sup

plied at the installation point must be the same as indicated on data plate. The supply wiring and circuit protection must be adequate for the kilowatt load drawn by the unit. Use copper wire suitable for at least 200°F. (90°C.). The unit must be grounded.

C. Drain Connection: Use with an open gap drain.

Must be 1" IPS vertically down and preferably with only one elbow and a maximum of 6 feet in length, piped to an open floor drain. A solid connection will result in back pressure to the compartment and overflow the drain trough.

START UP

WARNING: The cooking compartment contains hot steam. To avoid burns, stay clear of the door when opening it.

When the unit has been installed and all service connections have been made, the steamer should be checked out before operating.

A. Turn the power switch on the control panel to

"ON". The COOK TIME-MINUTES "Window" will display "00".

B. Touch number 8 on digital control panel twice.

Note that two complete 8's (all segments of the 8) in the display window light up. Next, touch all the other numbers and check that they also light up completely

C. Touch CANCEL and the display window will show

"00".

D. 15 minutes after turning on the power switch, the

READY (green) light will come on, indicating that the steamer is ready for the cooking cycle. Open the door and check that no steam has entered the cooking compartment.

E. Close the door and touch number 2 and "02" will be

displayed. This indicates that the unit is set for two minutes of cooking time.

F. Touch START. The READY light will go off and

the COOK (red) light will come on and steam will be heard entering the cooking compartment. Inspect that the cold water condenser is operating and is evident by observing water entering the open drain.

G. After one minute when the display window shows

"01", open the door and observe for two or three minutes that the steam has stopped entering the cooking compartment, while the COOK light and cooking time at "01" are still showing.

H. Shut the door. Steam generation and the cook

time will start again. When the display window shows "00", the buzzer will start, steam generation will stop, the COOK light will go off and the READY light will come on.

I. To stop the buzzer, open the door and the food

should be removed.

J. Turn the power switch to OFF. The drain solenoid

valve will open and the steam generator will "blow down". Check the open drain and note that hot water is being drained.

OPERATING

WARNING: The cooking compartment contains hot steam. To avoid burns, stay clear of the door when opening it.

A. Prepare for cooking by turning the power switch

"ON" The cook time minutes "Window" will display "00" and the generator tank will automatically fill with water and be brought up to the READY temperature with the heater elements, in about 15 minutes.

B. When the READY light (green) comes on, preheat

the cooking compartment for one minute by pressing number 1 on digital panel and then press START. The READY light will go off and the COOK light (red) will come on. Be certain that the door is closed. Steps A and B are only required when the cooking compart ment is cold or when the unit is to be used the first time during the day. When the buzzer sounds, open and then close the

door to silence it. C. Your unit is now ready for cooking. D. With compartment preheated and the READY light

on place pans of food into cooking compartment

and shut the door. Refer to the cooking guide

located after the cleaning section.

E. Press cooking minutes on the digital panel, then

touch START for the cooking cycle to begin. The cooking cycle may be interrupted at any time by opening the door and it can be started again by closing the door.

F. When the buzzer sounds, it indicates the end of

the cooking cycle and no more steam will be entering the cooking compartment. The buzzer is silenced by opening the door and removing the cooked food. The COOK light will go off and the READY light will come on.

G. Touching CANCEL will automatically display "00"

on "Window". The correct minute time can now be entered and the next item to be cooking can begin its cycle.

H. To shut down your steamer, turn the power switch

to OFF and the generator tank will automatically blow down, removing water and loose scale.

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