Vulcan SG-1010 Service Manual

INSTALLATION, SERVICE

& PARTS MANUAL FOR

SNORKEL GAS CONVECTION OVEN MODELS:

SG-22, SG-2SM, SG-1010, SG-10SM

ELECTRONIC IGNITION MODELS:

SG-22E, SG-2SME, SG-1010E, & SG-10SME

VULCAN-HART CORPORATION, 3600 NORTH POINT BOULEVARD, BALTIMORE, MARYLAND 21222

IMPORTANT

OPERATING, INSTALLING AND SERVICE PERSONNEL

Operating information for this equipment has been prepared for use by qualified and/authorized operating personnel.

All installation and service on this equipment is to be performed by qualified, certified, licensed and/ authorized installation or service personnel, with the exception of any part marked with a + in front of

the part number. Service may be obtained by contacting the Factory Service Department, Factory Representative or

Local Service Agency.

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.

QUALIFIED INSTALLATION PERSONNEL

Qualified installation personnel are individuals, a firm, corporation or company which either in person or through a representative are engaged in, and are responsible for:

1. 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. Reference in the United States of America - National Fuel Gas Code ANSI Z223.1 (Latest Edition). In Canada - Canadian Standard CAN/CGA-B149.1 NAT. GAS (Latest Edition) or CAN/CGA-B149.2 PROPANE GAS (Latest Edition).

2. The installation of electrical wiring from the electric meter, main control box or service outlet to the electric 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. Reference: In the United States of America - National Electrical Code ANSI NFPA No. 70 (Latest Edition). In Canada - Canadian Electric Code Part 1 CSAC22.1 (Latest Edition).

3. 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 Vulcan equipment who have been endorsed by the Vulcan-Hart Corporation. 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 Vulcan equipment.

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.

CAUTIONS (Continued)

CLEARANCES: FROM THE TERMINATION OF THE

APPLIANCE FLUE VENT TO THE FILTERS OF THE HOOD VENTING SYSTEM, AN 18 INCH MINIMUM CLEARANCE MUST BE MAINTAINED.

REFERENCE: ANSI/NFPA 96-1984 4-1.2.2.2. OF THE NATIONAL FIRE PROTECTION ASSOCIATION, INC., BATTERYMARCH PARK, QUINCY, MA 02269. AND NATIONAL BUILDING CODE 1976 SEC. 1015.7b (2) OF THE AMERICAN INSURANCE ASSOCIATION ENGINEERING AND SAFETY SERVICE, 85 JOHN STREET, NEW YORK, N.Y. 10038.

LOADING: BEFORE LOADING THE OVEN SET THE

LOAD CONTROL DIAL TO THE PROPER SETTING FOR THE PRODUCT AND THE COOKING LOAD (SEE SEPARATE COOKING CHART).

OPENING OVEN DOORS: BEFORE OPENING THE

OVEN DOORS, PUSH THE AUXILIARY FAN SWITCH TO THE "OFF" POSITION.

OPENING OVEN DOORS WILL AUTOMATICALLY CUT "OFF" THE FAN AND THE HEATING ELEMENTS, BUT IF THE FAN SWITCH IS NOT PUSHED TO THE "OFF" POSITION, HOT AIR GATHERED WITHIN THE OVEN CAVITY MAY BE PUSHED OUT WHEN THE DOORS ARE OPENED.

CAUTION: DO NOT STAND DIRECTLY IN

FRONT OF THE OVEN WHILE

OPENING DOORS

WHEN OPENING THE DOORS, THE OPERATOR SHOULD PULL DOOR HANDLES OPEN WHILE SIMULTANEOUSLY STEPPING BACK AWAY FROM THE FRONT OF THE UNIT.

LOAD THE OVEN AS QUICKLY AS POSSIBLE TO CONSERVE HEAT. CENTER PANS ON THE RACKS.

HI LIMIT: IS A PROTECTIVE DEVICE WHICH SENSES THE TEMPERATURE OF THE UNIT TO PREVENT APPLIANCE OVERHEATING.

THE HI LIMIT OPERATES INDEPENDENTLY AND WILL AUTOMATICALLY CAUSE UNIT SHUTDOWN SHOULD THE PRIMARY CONTROL FAIL.

IF THIS SITUATION OCCURS, DO NOT ATTEMPT TO BYPASS THE HI LIMIT. SHUT UNIT DOWN AND CONTACT A SERVICE AGENCY.

VULCAN SNORKEL™ GAS CONVECTION OVEN INSTALLATION, SERVICE and PARTS MANUAL INDEX

Vulcan Snorkel™ is produced with the best possible workmanship and material. Proper usage and maintenance will result in many years of satisfactory performance.

DESCRIPTION PAGE

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

CAUTIONS 114594-1 & 2 INDEX 114594-3 GENERAL THEORY OF OPERATION 114594-4 INSTALLATION INSTRUCTIONS 114594-5 SG-2SMT & SG-10SMT ADD-A-SECTION INSTRUCTIONS 114594-5 thru 11 INSTALLATION INSTRUCTIONS (Continued) 114594-12 thru 14 FLUE CONNECTIONS 114594-15

The manufacturer suggests that you thoroughly read this entire manual and carefully follow all of the instructions provided.

(Inside Front Cover)

TROUBLE SHOOTING SERVICE 114594-15 & 16 PARTS DESCRIPTION & REPLACEMENT 114594-17 thru 19 POWER PANEL - PARTS REPLACEMENT PRESSURE REG. - PILOT ADJ. - ORIFICE DATA 114594-2 COOKING CHART 114594-22 & 23 REPLACEMENT PARTS LIST 114594-24 thru 44 REVISION PAGE (Inside Back Cover)

The rating plate stating the model number, serial number, gas type, voltage and amperage is located inside the lower front cover of the unit on the right hand side.

Motors in Vulcan convection ovens are permanently lubricated and require no additional maintenance.

The vent of this appliance should be checked every 6 months for restrictions.

A complete set of wiring diagrams are packed separately in the unit.

A wiring decal is located inside the control panel compartment.

114594-20

WARNING: Back and sides of unit must be installed 6"

from combustible construction.

GENERAL THEORY OF OPERATION

Figure 1 shows the air distribution and the path of the flue products in the Vulcan Snorkel™ oven. There are two tubular sheet metal burners which operate in an insulated combustion chamber with minimum air requirements. The flame chamber collects the heat generated by the burners and directs it through the heat exchanger tubes which are within the cooking compartment. The heated flue products are collected in a box above the oven compartment and directed to the blower inlet through the Snorkel tube. The oven compartment is heated indirectly via the heat exchanger tubes and directly with the flue products drawn into the oven by the Snorkel tube. A circulating fan also distributes heat throughout the oven evenly. The two vents in the top of the oven compartment evacuate moisture and also vent the oven flue products.

The blower and solenoid operate independently of each other. The blower operates as long as the doors and closed or the auxiliary fan switch is actuated. The solenoid is controlled by the thermostat and the Load Control. The thermostat must be On and the thermostat and the load control set to an operating position for the solenoid to come On and supply heat the oven. Either the thermostat or load control switch in the "Off" position will shut off the solenoid.

In order to provide protection against a pilot outage hazzard, a valve controls the main flow of gas to the burner. As long as a pilot flame is present, the valve will remain open. In the absence of pilot heat, the valve closes, eliminating gas to the burner. Each burner has its own valve which allows them to operate independently of each other.

A snap acting door switch, mechanically linked with the right hand door, shuts off both the heat and the blower when the door is opened and will automatically reset when the door is closed.

In ovens equipped with optional auxiliary fan switch, the door inter-lock can be over-ridden by depressing the "Auxiliary Fan Switch." The oven over-ride affects the blower only (not the heat) and is intended for rapid cooling of the oven interior.

Under "Component Description and Replacement" section the detailed function of each component is explained.

INSTALLATION INSTRUCTIONS

This appliance when installed must be electrically grounded in accordance with National Electrical Code ANSI C1-1981.

Vulcan ovens are produced with the best possible workmanship and material. Proper installation is vital if best performance is to be achieved. Please follow these instructions carefully.

3. SG-22 & SG-1010 units are shipped in two sections with a 7” leg stand mounted on the bottom unit. Position bottom unit as near to the final location as possible.

4. Pipe joint compounds used when connecting appliances to gas should be resistant to the action of propane gas.

1. Remove crating with care. Remove all wood blocking, packing material and accessories.

2. Each unit is factory equipped and electrically connected for use with type of gas and electric supply indicated on rating plate behind the lower panelCheck the type of gas and electric supply available.

5. Pipe joints should be tested for leaks with a soap and water solution before operating the unit.

6. Mount the upper section on top of the lower section from the front of units. Allow the upper section to overhang the lower unit at the front by approximately 8 inches. Refer to Detail A.

SG-2SMT AND SG-10SMT ADD-A-SECTION INSTRUCTIONS

PART A PREPARING THE SG-2SMT UNIT FOR

STACKING.

(T in SMT indicates Top oven in double deck convection oven. B in SMB indicates Bottom oven in double deck convection oven)

TOOLS REQUIRED FOR THIS PROCEDURE:

6" adjustable wrench, 1/4" socket drive, 7/16" hex head socket, 6" long 1/4" driver extension, 5/16" hex head socket and flat head screwdriver.

1. Disconnect the unit from the gas and the power supply and remove two rear lower aluminized access panels. Remove panels using a 5/16" hex head socket. Also remove S/S lower front cover. To remove the front cover, slip a flat edged screwdriver behind the panel and pop the panel off.

3. Using a 5/16" socket, remove the four bottom baffles (2 front, 2 rear). (See Details B and C)

2. Using a 6" adjustable wrench and a 7/16" socket, remove four screws (2 rear, 2 front) attaching the leg stand to two burner insulation pans. Remove and discard pans. (See Detail A)

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

4. Using a 5/16" socket, remove three 5/16" hex head

screws from the upper right hand back of the unit. Install flue extension piece (a) to body back using six 5/16" hex head screws. Do not fully tighten the three screws on the right hand side of the flue extension. Loosen the two 5/16" screws located on the lower right hand back of the unit. (See Detail D)

5. Locate the back right hand side extensions piece (b). Assemble by sliding the slotted right hand side extensions between the body back and body side. Tighten body back using the 5/16" screws shown in Detail E. Assemble the left hand extension piece (b1) in the same manner.

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

6. Return and face the front of unit. Remove four 5/16"

hex screws holding the front right hand body side cover. (See Detail F)

9. Return to the back of the unit and face it. Loosen four 5/16" left hand body back hex head screws and (See Detail I) remove the right hand body side cover (Now to your left) to expose unit's manifold piping and electrical connection.

7. Remove front right hand side body cover by holding the cover at the top and bottom while lifting upward, then pull straight out, away from oven. (See Detail G)

8. While still facing the front of unit, remove six 5/16" screws from the back right hand body side cover. (See Detail H)

10. Remove the shut-off valve from the manifold pipe assembly and connect tee and union manifold assembly (c) to the unit regulator. (See Detail J)

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

11. Using a 5/16" socket, remove the side flue deflector

from the top of the unit. (See Detail K)

12. Remove the two remaining 7/16" bolts from the bottom of the leg stand. Allow the unit to rest unbolted on the stand until stacking is required.

PART B. PREPARING THE SMB UNIT FOR STACKING.

TOOLS REQUIRED FOR THIS PROCEDURE:

5/16" hex head socket, 1/4" socket driver and 6" x 1/4" socket drive extension.

1. Assemble aluminized flue housing (d) to SMB body top using (8) 5/16" hex head screws. (See Detail L)

2. While facing the front of the unit disassemble three 5/16" hex head screws from the front right hand body side cover. Remove body side cover by placing hands at the top and bottom of cover while lifting upward, and then pull and straighten out away from oven. (See Detail M and Detail G)

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

3. While still facing the front of the unit. Remove six

5/16" hex head screws from the back right hand body side cover.

4. Facing the back of the unit, remove four 5/16" hex head bolts and the right hand body side cover (now on your left) to expose the manifold and electrical connection.

5. Assemble second half of manifold assembly (e) to SMB section as shown in Detail N.

7. Place new full width flue deflector on rear top of stacked units as shown in Detail N.

8. Assemble angled aluminized flue duct (f) to the back right hand side of unit using five 5/16" hex head bolts.

DO NOT ASSEMBLE BOLTS TO THE FAR RIGHT HAND SIDE OF FLUE DUCT YET. (See Detail 0)

6. Remove the SMT unit from the stand and carefully stack onto the SMB UNIT. (This operation will require the assistance of three other people.) Be sure to line up parts properly.

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

9. Bolt two closure panels (g) to upper back of unit

using four 5/16" hex head bolts and finish attaching angled flue duct as shown in Detail P.

11. Reinstall the SMT manifold cover using six 5/16" hex head bolts (See Detail R)

12. Tighten down all but the two back 5/16" hex head screws of the new flue deflector resting on top of the SMT unit (See Detail S).

10. While facing back of unit, remove two 51/6" hex head bolts holding two stacking braces to the SMB unit. See Detail N. Reinstall the bottom side manifold cover using fourteen 5/16" hex head bolts (See Detail Q) and reassemble stacking straps to the SMB and SMT sections.

13. Assemble black hood stacking strip to back of SMT unit using four 5/16" hex head screws. (See Detail T)

SG-2SMT & SG-10SMT ADD-A-SECTION INST. (Continued)

14. Reassemble the top and bottom right front side

control covers using seven 5/16" hex head screws. (See Detail U and Detail V)

NOTE: All convection oven sections built before

October, 1983 will require the use of a 3.7" regulator. Any convection oven section built after October, 1983 will require the use of a 6" regulator. For orifice size differences, refer to chart on page 21 of this manual.

a. To determine if your unit was built prior to October,

1983, refer to the rating plate serial number. The first two digits of this number indicates the year, the second two numbers indicates the month, i.e. YEAR 83 MONTH 10, SERIAL NUMBER 8310.

If your unit was built prior to October, 1983 proceed to Step b.

b. New units are provided with a 6" pressure regulator

preassembled to the interconnecting manifold pipe.

15. Unit is now ready to be placed into operation. f. Reconnect the unit to the gas supply and test for

leaks. Reinstall the side panel and continue with the installation and operating manuals.

c. Turn off the gas supply and remove the 3.7 inch

pressure regulator from the existing unit.

d. Assemble the 3.7" regulator, removed in Step c, to

the interconnecting manifold as shown in Detail A.

e. Connect the manifold assembly to the unit making

sure that the 6 inch pressure regulator is connected to the lower unit as indicated in Detail A.

INSTALLATION INSTRUCTIONS (Continued from Page 7)

7. Attach flue cover to the lower section with sheet metal

screws provided. Detail B.

8. Position upper section in line with lower section. Install flue closure assembly, connecting upper and lower sections with sheet metal screws provided. Detail C & CA.

9. Install connection pipe with unions per Detail D.

10. Connect upper and lower units together at the front per

11. Be sure supply cords are accessible or connections

Detail E.

have been made to the junction box.

INSTALLATION INSTRUCTIONS (Continued)

12. Connect oven to gas supply through the shut-off

valve and gas pressure regulator provided. Locate the shut-off valve in an accessible location.

Units for use on natural gas are equipped with a pressure regulator with a preset outlet pressure of 6" W.C. Units for use on propane gas have a regulator with a preset outlet pressure of 10.0" W.C. Regulator must be mounted horizontally to provide the preset outlet pressure. If regulator is mounted in any other position, the outlet pressure must be reset.

Note: Do not obstruct the leak limiter on pressure

regulator. A leak limiter is supplied with every regulator to allow excess gas pressure to escape. Do not obstruct leak limiter on gas pressure regulator as obstruction may cause regulator to malfunction.

13. Connect the oven to the electric supply. 120 volt ovens single phase units are equipped with a 7 ft. 3 in. wire (including ground) supply cord. 120 volt appliances are equipped with a three prong (grounding) plug 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 its plug. 208/240 volts units with a single or three phase motor are provided with a terminal block. 208/240 volt units must be electrically grounded at the time of installation.

14. Either a draft diverter or a low profile deflector is shipped with every oven. A low profile deflector is intended for use when the oven is installed under canopy type hoods. When the oven is directly connected to a vent system, a down draft diverter must be used.

15. Using a carpenter's level placed on a rack, adjust the feet on the bottom of each leg, so that oven is level from the front to back and side to side.

(Note: Level the oven when in its permanent position

only).

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