Vulcan-Hart EG160 Manuale utente

SERVICE MANUAL

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

FORM 31054 Rev. A (5-98)

GAS RESTAURANT RANGE

EG24, 36, 48, 60, 160 AND 260

MODEL

EG24 ML-52486

EG36 ML-52487

EG48 ML-114956

EG60 ML-52488

EG160 ML-52489

EG260 ML-52490

EG36

– 3 –

IMPORTANT FOR YOUR SAFETY

THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL GAS

EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND

ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.

POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE

EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED

FROM THE LOCAL GAS SUPPLIER.

IMPORTANT

IN THE EVENT A GAS ODOR IS DETECTED,

SHUT DOWN UNITS AT MAIN SHUT-OFF VALVE

AND CONTACT THE LOCAL GAS COMPANY OR

GAS SUPPLIER FOR SERVICE.

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER

FLAMMABLE VAPORS OR LIQUIDS IN THE

VICINITY OF THIS OR ANY OTHER APPLIANCE.

WARNING

IMPROPER INSTALLATION, ADJUSTMENT,

ALTERATION, SERVICE OR MAINTENANCE CAN

CAUSE PROPERTY DAMAGE, INJURY OR

DEATH. READ THE INSTALLATION,

OPERATING AND MAINTENANCE

INSTRUCTIONS THOROUGHLY BEFORE

INSTALLING OR SERVICING THIS EQUIPMENT.

IN THE EVENT OF A POWER FAILURE, THE PILOTS WILL REMAIN LIT AND THE UNIT

WILL CONTINUE TO FUNCTION. UNITS EQUIPPED FOR 120 VOLT OPERATION WILL

AUTOMATICALLY SHUT DOWN. SHOULD THIS HAPPEN, TURN POWER SWITCH OFF.

DO NOT ATTEMPT TO OPERATE UNIT UNTIL POWER IS RESTORED.

– 4 –

EG60 EG260 EG160

EG24EG48

EG36

PL-53006

GAS RESTAURANT RANGE MODELS

–5 –

SERVICE MANUAL

GAS RESTAURANT RANGES INDEX

PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE

DESCRIPTION PAGE

SERVICE NOTATIONS 6

UNITS MOUNTED ON CASTERS 7

SERVICING SIMPLE CHECKS AND ADJUSTMENTS 7-10

GAS CONNECTIONS 11, 12

TESTING THE GAS SUPPLY SYSTEM 12

ORIFICE SIZE REQUIREMENTS FOR DIFFERENT ELEVATIONS 12

PILOT LIGHTING AND ADJUSTMENTS 13-17

THERMOSTAT ADJUSTMENTS 18-21

REGULATOR CHECK, ADJUSTMENT, INSTALLATION 22-24

STANDARD OVEN & GRIDDLE THERMOSTAT REPLACEMENT 24-27

OVEN PILOT CHECK, REPLACEMENT 28

STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT 29-31

THERMOCOUPLE CHECK, REPLACEMENT 32

OVEN BURNER NOZZLE AND ORIFICE CHECK, REPLACEMENT 33

OVEN BURNER CHECK, REPLACEMENT 34

TOP SECTION PILOT CHECK, REPLACEMENT 35

PILOT ADJUSTMENT VALVE REPLACEMENT 35

TOP SECTION BURNER VALVE AND NOZZLE CHECK, REPLACEMENT 36

–6 –

DEDICATED TECHNICAL SERVICE HOT LINE-

(1-502-778-2791)

SERVICE NOTATIONS:

1. The procedures outlined in this manual are to be performed only by Vulcan-Hart authorized service

representatives.

2. An authorized Vulcan-Hart service representative is one who is familiar with Vulcan equipment and who has been

endorsed by Vulcan-Hart Company to service the equipment. All authorized service personnel are required to stock

a minimum amount of parts and should be equipped with a complete set of wiring diagrams, service and parts manuals

covering all Vulcan-Hart equipment.

3. For all field conversion service installation procedures, refer to the codes and compliances outlined in the installation

and operation manual.

4. The unit rating plate stating model no., serial no. and unit gas type is located on the inside of the lower kick panel.

5. Caution should be taken when servicing this equipment. Some service testing is required while the unit is in operation.

During these test procedures, it is advisable not to leave the unit unattended and to exercise caution during all testing

operations.

WARNING: THE RANGE AND ITS PARTS ARE HOT. BE VERY CAREFUL WHEN OPERATING OR SERVICING THE

RANGE.

–7 –

UNITS MOUNTED ON CASTERS

Units mounted on casters utilizing a flex hose and quick-disconnect must be installed with a restraining device. The

restraining device must be connected at all times. If disconnection of the device is necessary, turn off the gas supply before

disconnection. Reconnect the restraint before turning the gas supply on and returning the unit to its original installation

position and before beginning unit operation.

SERVICING SIMPLE CHECKS AND ADJUSTMENTS

The following is a list of simple checks and adjustments which are commonly associated with the malfunctioning of

this equipment. Perform these checks and adjustments for relevant unit symptoms before the removal of any major

parts or controls. Any service related questions for these units can be answered by calling the number on the front of this

manual.

CHECKS

1. Check the unit rating plate and verify that the gas type, pressure rating and voltage ratings (if applicable) are correct

for the unit and the installation site affected. If not correct, make required adjustments.

2. Ensure that all unit and main gas and electrical supply lines are connected properly. (For electrical problems, check

for tripped circuit breakers.)

ADJUSTMENTS

1. Legs/Casters

TOOLS REQUIRED: Carpenter’s level, channel locks.

If the cooked product seems to be lopsided, check the leveling of the unit. Place a carpenter’s level inside the oven cavity

across the oven rack(s). Level the unit from front to back and from side to side.

To adjust the leveling of the unit, tilt the unit to one side and, using channel locks, unscrew the adjustable leg insert as

required. Repeat this procedure as necessary for each leg.

NOTE: Casters for this range are of the non-leveling type. Therefore, the surface which the unit is resting on must be level.

If floor surface is not level, the unit will experience cooking problems until the range is level.

Check the unit leveling again before leaving the store to ensure that the problem has been corrected.

–8 –

2. Oven Door Turnbuckle

NOTE: For the 24L units, refer to procedure outlined under 2A.

If the oven door is not closing properly, the door turnbuckle may require adjustment. To adjust the turnbuckle, flip down

the lower front kick panel. The turnbuckle is connected between the right- and left-hand door springs (Fig. 1). With your

hand, rotate the cast center piece of the turnbuckle two rotations at a time, then check the door tension. Repeat this

procedure until the door works as desired. After adjustment has been made, tighten the locknuts.

SERVICING SIMPLE CHECKS AND ADJUSTMENTS (Cont.)

Fig. 1

2A. 24L Oven Door J-Bolt Assembly

If the oven door is not closing properly, the door J-bolt assembly may require adjustment. To adjust the J-bolt assembly,

flip down the lower front kick panel. The J-bolt assembly is connected to the right-hand bell crank arm (Fig. 2). The

adjustment is made by the two 1⁄4-20 locknuts. Turn each nut in a clockwise direction to increase tension on the door; turn

each nut in a counterclockwise direction to decrease the tension. Repeat this procedure until door works as desired. After

adjustment has been made, tighten the locknuts.

Fig. 2

–9 –

SERVICING SIMPLE CHECKS AND ADJUSTMENTS (Cont.)

3. Pilot Flame Height

TOOLS REQUIRED: Standard flat blade screwdriver.

Top Burners: To adjust pilot flame height of the unit top burners, locate the pilot adjustment screws found on the front

manifold pipe. It is not necessary to remove the manifold cover, as adjustment access holes have been provided in the

panel. With screwdriver, turn the adjustment screw of the pilot valve experiencing the pilot flame height problems

(Fig. 3). Rotate the screw clockwise to decrease and counterclockwise to increase the flame height.

Fig. 3

Oven: On rare occasions, the oven pilot may need adjustment. To do this:

1. Remove the pilot adjustment cap (Fig. 4)

Fig. 4

OUT

Oven Pilot

Control Button

Pilot Adjustment Cap

PL-50117

–10 –

2. With screwdriver, adjust pilot key (located under pilot adjustment cap) to provide the proper size flame.

3. Replace pilot adjustment cap.

NOTE: If unit still is not heating correctly, refer to THERMOSTAT ADJUSTMENTS on Page 18.

4. Air Shutter Adjustment

TOOLS REQUIRED: Standard flat blade screwdriver.

The efficiency of the oven depends on a delicate balance between the air supply and the volume of gas. Whenever this

balance is disturbed, poor operating characteristics and excessive gas consumption will occur.

The gas mixer balance is controlled by an air shutter on the front of the oven burner. A yellow streaming flame on the burner

is an indication of insufficient air. To correct this condition, loosen the screw locking the shutter into position. Rotate the

air shutter open until the burner flame begins to lift from the burner, then close the shutter slightly down again and lock it

into place (Fig’s. 5 & 6).

SERVICING SIMPLE CHECKS AND ADJUSTMENTS (Cont.)

Fig. 6

Fig. 5

–11 –

GAS CONNECTIONS

CAUTION: All gas supply connections and any pipe joint compound used must be resistant to the action of

propane gases.

Each unit is factory-equipped with the type gas specified on the rating plate. The installation gas connection is a

3⁄4" (19mm) 14 FPT thread ANSI schedule #40 standard pipe.

Codes require that a gas shutoff valve be installed in the gas line ahead of the range.

Standard units are equipped with fixed burner orifices which coincide with the proper unit operation elevation. See Orifice

Size Requirements for Different Elevations on Page 12. NOTE: Do not attempt to drill out orifice sizes. Obtain proper

conversion kit from Vulcan-Hart depot.

Install the gas pressure regulator.

NOTE: Before installing, check regulator supplied against unit rating plate gas supply.

As of 7/11/90, the gas pressure regulator is NOT factory installed to this equipment. The regulator for this unit gas type

is sealed within a plastic bag attached to the oven rack inside the oven cavity. This regulator must be field installed by a

qualified installation/service representative. The installer must adhere to all installation and pressure testing codes

outlined in the Installation and Operation manual (supplied with the equipment), and local installation ordinances.

Natural gas regulators are preset for 3.7" W.C. (Water Column) (.92 kPa); propane gas regulators for 10.0" W.C.(2.5 kPa).

1. Locate 3⁄4" (19mm) gas connection pipe extending from rear of range.

2. Cover pipe threads with leak sealant.

3. Screw regulator hand-tight onto pipe with regulator arrow pointing towards range body back (see Fig. 7).

4. Using pipe wrench, tighten regulator securely in an upright position (see Fig. 7).

The arrow on the regulator shows the direction of the gas flow (Fig. 7). While connecting the range to the gas supply, the

pressure regulator must be mounted horizontally to ensure proper preset outlet pressure. If the regulator is reinstalled in

any other position, the outlet pressure must be reset (Fig. 8).

Fig. 8

Fig. 7

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