Keating Of Chicago Griddle 37399 User Manual

Users Manual

MIRACLEAN^®GAS GRIDDLE

SERIES 2000

READ AND SAVE THIS MANUAL FOR FUTURE REFERENCE.

RECORD THE MODEL AND SERIAL

SERIAL NO. ______________________________

MODEL NO. _____________________________

KEEP THESE NUMBERS FOR FUTURE REFERENCE.

NUMBERS OF THIS MIRACLEAN GAS

GRIDDLE IN THE SPACES PROVIDED.

IMPORTANT: Keep a copy of your bill of sale. The date on the bill establishes the warranty period should

service be required. If service is performed, it is in your interest to obtain and keep all receipts. Keating

commercial griddles are not intended for household use.

The Owner’s Guide provides specific operating instructions for your model. Use the Miraclean

Griddle only as instructed in this Owner’s Guide.

Gas

CONTENTS:

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . .6-7

AVOID SERVICE CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

CLEANING CARE & CONDITIONING . . . . . . . . . . . . . . . . . . . . . . .7

THERMOSTAT CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

SERVICE PARTS ORDERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

SERVICE DIAGNOSIS

INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . .1

DAMAGE IN SHIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

NATIONAL CODE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . .1

GAS CONNECTIONS AND PIPE SIZE . . . . . . . . . . . . . . . . . . . . . .2

FLEXIBLE GAS CONNECTIONS & QUICK

TROUBLE SHOOT CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

THERMOSTAT REMOVAL & REPLACEMENT . . . . . . . . . . . . .10-11

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12

DISCONNECT DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

LEVELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

STAND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

LIGHTING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

COOKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

*AS CONTINUOUS PRODUCT IMPROVEMENT OCCURS, SPECIFICATIONS MAY BE CHANGED WITHOUT NOTICE.

Keep this manual for training new personnel.

1-800-KEATING

www.keatingofchicago.com

part# 037399

gasGriddle2000

11/09

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INTRODUCTION

before attempting to operate this Miraclean Griddle.

All installation and service on Keating equipment must

be performed by qualified, certified, licensed and/or

authorized installation or service personnel.

Service information for Keating equipment has been

prepared for use by qualified and/or authorized

personnel.

FIRST STEPS

Instructions in this manual should be read thoroughly

POSITIONING

Keep appliance area free and clear of any

combustibles. Position the Miraclean Griddle 6 inches

(152mm) from any combustible material. A minimum of

24 inches (610mm) should be provided at the front of

the Miraclean Griddle for servicing and proper

operation. Air for combustion enters the Miraclean

Griddle from the bottom of the cabinet and the bottom

of the control panel.

Keating equipment is made in the U.S.A. and has

American sizes of hardware. All metric conversions are

approximate.

DO NOT BLOCK BOTTOM OF MIRACLEAN

GRIDDLE CABINET. DO NOT OBSTRUCT FLUE.

Your Miraclean Griddle is designed to be serviced

INSTALLATION INSTRUCTIONS

Proper installation will assure top performance.

Alteration to your equipment will void the warranty.

from the front with adequate clearance for air openings

into the combustion chamber servicing and operation.

MINIMUM CLEARANCE

Suitable for non-combustible floors.

Before uncrating, check equipment carefully for

damage.

Clearances

Combustible

Construction

Non-combustible

Construction

IF EQUIPMENT ARRIVES

DAMAGED

Keating does not assume responsibility for loss or

damage incurred in transit.

Back

Right Side

Left Side

IMPORTANT

VENTILATION

This merchandise has been thoroughly inspected and

carefully packed before leaving our plant.

Responsibility for its safe delivery was assumed by the

carrier at the time of shipment. Claims for loss or

damage to the contents should, therefore, be made

upon the carrier, as follows:

The Miraclean Griddle must be installed in an area

providing adequate air supply and ventilation. Do not

obstruct the flow of combustion and ventilation air.

Proper ventilation is one of the important

considerations for efficient operation of the Miraclean

Griddle. It should be installed so that the products of

combustion are removed efficiently without producing

drafts that will interfere with proper burner operation.

CONCEALED LOSS OR DAMAGE

Concealed loss or damage means loss or damage

which does not become apparent until the

merchandise has been unpacked. The contents may

be damaged in transit due to rough handling even

though the carton may not show external damage.

When the damage is discovered upon unpacking,

make a written request for inspection by the carrier’s

agent within fifteen days of the delivery date. Then file

a claim with the carrier since such damage is the

carrier’s responsibility. By following these instructions

carefully, we guarantee our full support of your claims

to protect you against loss from concealed damage.

The area around the front and bottom of the Miraclean

Griddle must be kept clear and unobstructed. In the

U.S.A. the ventilation systems must conform to the

ANSI/NFPA96 latest edition. “A minimum of 18"

(457mm) should be maintained between the flue outlet

and the lower edge of the grease filters.” It is the

responsibility of the owner and the local installer to

comply with national and local codes.

NATIONAL CODE REQUIREMENT

The installation must conform with local codes, or in the

absence of local codes, with the National Fuel Gas

code, ANSI Z223.1 or the Natural gas Installation

Code, CAN/CGA-B49.1 or the Propane Installation

Code, CAN/CGA-B149.2. Keating equipment is

designed and manufactured to operate only on the type

of gas specified by the user and indicated on the serial

plate located on the front panel. The gas may be

natural, propane or manufactured. The type of gas

cannot be converted to another gas fuel by turning or

engaging a switch.

VISIBLE LOSS OR DAMAGE

Any external evidence of loss or damage must be

noted on the freight bill or express receipt, and signed

by the carrier’s agent. Failure to adequately describe

such external evidence of loss or damage may result in

the carrier refusing to honor a damage claim. The form

required to file such a claim will be supplied by the

carrier.

DO NOT RETURN DAMAGED MERCHANDISE

TO KEATING FILE YOUR CLAIM AS ABOVE.

NOTE: NOT FOR OUTDOOR INSTALLATION

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GAS CONNECTIONS AND PIPE SIZE

FLEXIBLE GAS CONNECTORS AND QUICK

DISCONNECT DEVICES

For an appliance equipped with casters:

The installation shall be made with a connector that

complies with the Standard for Connectors for Movable

Gas Appliances, ANSI Z21.69 or the Standard for

Connectors for Moveable Gas Appliances, CAN/CGA-

1.16, and a quick disconnect device that complies with

the Standard for Quick-Disconnect Devices for Use

With Gas Fuel, ANSI Z21.41 or the Standard for Quick

Disconnect devices for Use with Gas Fuel, CAN1-6.9.

The Miraclean Griddle requires a standard gas pipe

size of 3/4 inch (19mm) I.D. connection. The size of the

gas supply pipe is very important if the pipe is too small

you will have low gas pressure at the Miraclean

Griddle manifold. Low gas pressure will cause slow

recovery and/or delayed ignition. If you have a question

about gas pipe size call your local gas company.

Before connecting new pipe to the Miraclean Griddle

the pipe must be blown out to remove all foreign

particles. These particles in the controls or burners may

cause improper or dangerous operating conditions.

RESTRAINING DEVICES

Adequate means must be provided to

WARNING

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.

Pipe joint compounds that are used on threaded joints

of appliance piping shall be resistant to the action of

liquified petroleum gases. When using pipe joint

compound do not apply to the first two threads. Use

only very small amount and only on male threads. This

will prevent clogging of burner orifices and the gas

valve. Never use compound on female threads as it

might be pushed into the gas valve.

Griddle installation on stands with

Restraining devices

caster, casters and jam nuts must be

required.

completely tightened.

The restraint means must be attached

to the rear of the Miraclean Griddle within 2" of the

center line and approximately 1-5/8" from the bottom of

the cabinet back to allow the restraining bolt to be

anchored to the cabinet back between the cabinet

bottom and inner liner to ensure positive support to

Have your installer check for gas leaks using a soap

and water solution before operating. DO NOT USE AN

OPEN FLAME TO CHECK FOR GAS LEAKS.

restrain Miraclean Griddle movement and not depend

1) The Miraclean Griddle and its individual shut off

on the flexible gas connector, quick-disconnect or

valves must be disconnected from the gas supply

piping system during any pressure testing of that

system at test pressures in excess of 1/2 psi (3.45kPa)

(13.84 in WC) High pressure can damage the gas

valve causing a hazardous condition.

piping to limit the Miraclean Griddle movement.

If disconnection of the restraint is necessary, it must be

reconnected when the Miraclean Griddle is returned to

its originally installed position.

WARNING

2.) The appliance must be isolated

LEVELING

from the gas supply piping system by

closing its individual manual shutoff

valve during any pressure testing of

the gas supply piping system at test

pressures equal to or less than 1/2 psi

(3.45 kPa).

Do not use

open flame

to check for leaks.

The required gas pressure for proper

operation of each Miraclean Griddle

is 4" water column for natural gas and 10" water

column for propane gas at the manifold.

The Miraclean Griddle will operate at its highest

If more than one gas unit is on the same supply line,

you may require a larger line. Consult your local gas

company to assure adequate volume and pressure.

Refer to serial plate for proper gas requirement for your

particular model.

efficiency when properly leveled. Place a level on the

Miraclean Griddle plate from side to side. For griddles

on legs, the bottom foot of the leg is adjustable. Turn

counterclockwise to decrease height, or clockwise to

increase height until level. For griddles on stands with

casters, the casters are adjustable by loosening the

jam nut. When the desired level is reached, tighten the

jam nut. Adjustments of more than 3/4" are not

recommended on any caster. The same procedure

should be followed to level the Miraclean Griddle from

front to back.

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ASSEMBLY INSTRUCTIONS FOR GRIDDLE

STAND ON CASTERS

(THERE IS NO TOP ON THIS STAND)

PLACING MIRACLEAN

GRIDDLE IN OPERATION

(When all previous instructions have been completed).

Check the serial plate to determine if the burner is set

up for the proper type gas before connecting the quick-

disconnect or piping from the building gas supply pipe.

a. Gas pressure at manifold

NATURAL GAS – 4.0 in. W.C.

b. Gas pressure at manifold

LP GAS – 10 in. W.C. (2.49kPa).

c. Maximum incoming gas pressure

NATURAL GAS – 7 in. W.C. (2.01kPa).

d. Maximum incoming gas pressure

LP GAS – 11 in. W.C. (2.98kPa).

1. Connect incoming gas.

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LIGHTING INSTRUCTIONS

The polished trivalent chrome finish on the Miraclean

MIRACLEAN GRIDDLE

Griddle plate is a wonderful insulator. It prevents the

radiant heat from leaving the griddle plate. It transfers

conducted heat to the food being cooked more rapidly

than other griddle plates, because the food is placed

directly on the metal surface. It is the understanding of

this rapid heat transfer that permits the practical and

(See lighting instructions plate attached to front of

MIRACLEAN Griddle).

Make sure that the main gas valve on the gas supply

line to the Miraclean Griddle is in the “ON” position.

1. Turn gas valve knob to "pilot" position.

beneficial use of the Miraclean Griddle.

2. Push gas valve knob inwards and push the red

spark ignition button to light the pilot. Then hold the

knob for 90 seconds.

The Miraclean Griddle finds an application in all sorts of

griddle work, from cooking wheat cakes to scrambling

eggs. We use these two products as illustrations

because generally wheat cakes are cooked on a hot

griddle. Eggs must be scrambled on a relatively cold

griddle. Between these two extremes fall dozens of

griddled items- everything from grilled frankfurters,

grilled Italian sausage, grilled sausage patties, the entire

range of steaks and chops and

3. Release the pilot gas valve knob; pilot should

remain burning. Turn the knob to the ON position.

4. Turn ON/OFF switch to ON position.

5. Set thermostat dial to desired position.

AIR IN THE SUPPLY LINE MAY REQUIRE A LONGER

THAN NORMAL PERIOD OF TIME TO LIGHT YOUR

chicken and fish.

MIRACLEAN

GRIDDLE

DURING

INITIAL

It is necessary to understand that the

carmelization of the meat products

being cooked takes place at a higher

rate and at a lower griddle surface

temperature because of the improved

INSTALLATION, AFTER OVERNIGHT SHUTDOWN,

OR WHEN RELIGHTING.

heat transfer of the Miraclean

Griddle.

Eggs can not only be scrambled, but

can be fried in any fashion. If the eggs

are to be basted it is necessary to have a metal cover,

and to spill or splash a small amount of water under the

cover so that the steam will baste the top of the eggs.

Eggs require a very low temperature because generally

you do not want the eggs to be browned on the bottom

where they come in contact with the griddle plate.

Approximately 250°F is ideal for scrambling or frying

eggs.

Millivolt Safety

Pilot Valve

A 5 MINUTE COMPLETE SHUT OFF PERIOD IS

REQUIRED BEFORE APPLIANCE IS RELIT.

DO NOT LEAVE YOUR MIRACLEAN® GRIDDLE

UNATTENDED.

SHUT DOWN INSTRUCTIONS

1. Turn ON/OFF switch to "OFF" position.

2. Turn gas valve knob to "OFF" position.

There are several griddle tools. A hamburger spatula is

like the one pictured here. The hamburger must stick at

least slightly to the griddle to hold its shape. If it does not

stick it shrinks in diameter, and the center of the meat

becomes thicker. It becomes more of a meat cake than

a hamburger. Therefore, the hamburger spatula has a

strong cutting edge.

3. Check to determine that all burners and pilots are

extinguished.

COOKING WITH YOUR

MIRACLEAN GRIDDLE

An egg spatula

is shown in this illustration. An egg spatula has a long

very thin blade so that it can be slipped under the egg

without damaging it or breaking the yolk. This spatula

can also be used for chopping the scrambled eggs so

as they are turned they can be cooked to perfection

without unnecessary browning. This same spatula is

used for omelettes.

You will find that your new Miraclean Griddle has

superb heat transfer. The polished trivalent chrome

finish of the Miraclean reduces the emission of radiant

heat. Radiant heat is measured by emissivity. The

radiant heat of a perfect black body has

an emissivity of 1. The radiant heat of a

conventionally seasoned Griddle plate is

approximately .87. The radiant heat of the

Miraclean has an emissivity of .078.

You can prove this to yourself by holding your hand

approximately 1/2" above the Miraclean Griddle plate.

At this distance it is difficult to tell whether the Griddle

plate is hot or not. It feels as though the Griddle plate is

barely warm, but if you touch the plate, it will burn you.

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The Miraclean Griddle can be kept in

2. Cook as usual, but after each batch scrape the

griddle in the work area completely clean, using

the 4" wide scraper supplied by Keating. (This may

be the only cleaning you will ever need.)

perfect condition by using a razor

blade griddle scraper to remove the

film that is deposited from the products

that have been previously cooked.

HIGH TEMPERATURE – Since the Miraclean Griddle

does not radiate heat (for all practical purposes)

sometimes people turn the griddle all the way up to

400°F. Eggs, bacon, hash browns and hamburgers will

not cook on a very hot griddle. Use low temperatures

and work your way up to the proper temperature.

Eggs, being cooked at

lower

temperature, require substantially no

scraping; but meat and meat products

cooked at a higher temperature, do

require scraping. Pancakes or wheat

cakes which are cooked at a much

higher temperature, do not require that

the Griddle be scraped. It is merely brushed clean with

the spatula.

BEST COOKING AREAS ON THE

MIRACLEAN GRIDDLE

To use the best cooking areas, locate the inverted “V’s”

on the front of the griddle cooking plate. Depending on

your model you may have from one to six thermostats.

The “V’s” indicate where the thermostat sensing bulbs

are located below the plate.

If you cook over the sensing bulb only you are drawing

heat from that section; the thermostat calls for heat but

since it has not dissipated in the other areas of the

surface, you can overheat the griddle plate.

The important thing about the satisfactory use of the

Miraclean Griddle is to understand its rapid heat

transfer at low temperatures, and to understand how to

maintain the Griddle plate clean and shiny at all times.

If an accumulation builds up on the Miraclean Griddle,

it is necessary only to wash it with a palmetto pot brush

and cold water. As you pour water on the Griddle and

MIRACLEAN TEMPERATURE GUIDE

PRODUCT

TEMP

Bacon

325°F

Chicken Breasts (skinless)

Eggs, basted (with cover)

Eggs, scrambled

French Toast

350°F

250°–275°F

350°F

Hamburgers

Hot Dogs

325°–350°F

310°F

Pancakes

360°–370°F

315°–350°F

315°–325°F

TOP VIEW SHOWING PLACEMENT OF BURNERS

UNDER MIRACLEAN GRIDDLE PLATE

Potatoes, Hash Browns

Sausage (patty or link)

Load #1

Load #3

Load #2

Steak, 10 oz. Butt

325°F

6 oz. Strip

350°F

wash the Griddle with a palmetto brush, it will come

clean and beautiful in but a few seconds. A scraper is

used to completely remove any deposit left from

previous products on the Griddle surface. Polish the

Griddle so it looks new using KEATING Klenzer and a

dry cloth. (See Cleaning Instructions)

“V”

Thermostat Bulb Location

COOKING PROCEDURES

maximum production efficiency and deliver high quality

food products. Follow cooking procedures below.

Do cook around the thermostat sensing bulb.

Don’t cook directly over the thermostat sensing bulb.

MIRACLEAN Griddles are designed to provide

COOKING INSTRUCTIONS

1. Set the thermostat to the desired temperature and

wait ten minutes for preheat. The operating

temperature should be from 10° F to 25° F lower

than conventional griddles – at least start at lower

temperatures. You may be able to work the

temperature up as you become accustomed to the

more rapid cooking of the Miraclean Griddle.

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CLEANING THE MIRACLEAN®

GRIDDLE

durable and with proper care, following the procedures

below, will last many years.

Damage done to the Miraclean surface is irreplacable.

The surface of the MIRACLEAN Griddle is very

ꢀ NEVER USE A GRIDDLE STONE, BRICK OR

SCREEN TO CLEAN THE MIRACLEAN

SURFACE.

DAMAGE

DONE

THE

A sample of Keating Klenzer, Keating palmetto brush

MIRACLEAN SURFACE BY GRIDDLE STONE,

BRICK OR SCREEN WILL VOID THE WARRANTY.

ꢀ DO NOT HACK, CHOP, HIT OR CUT ON THE

and a 4" scraper are included with each new griddle.

Scrape MIRACLEAN surface.

MIRACLEAN SURFACE. YOU WILL DENT THE

STEEL PLATE UNDER THE TRIVALENT

CHROME. IT IS EVEN POSSIBLE TO HACK TWO

NICKS CLOSE TOGETHER AND ACTUALLY

TEAR THE MIRACLEAN SURFACE AS THE

CHROMIUM WILL NOT STRETCH. PROPER USE

OF THE UTENSILS SUPPLIED WITH YOUR

MIRACLEAN

GRIDDLE

WILL

PREVENT

Clean your Miraclean Griddle while hot at

SURFACE DAMAGE. THE DAMAGE DONE TO

THE MIRACLEAN SURFACE IS IRREPARABLE.

300° F to 350° F. Using a plastic pitcher, pour

water ahead of a palmetto pot brush. Then

scrub the griddle clean with the pot brush

sweeping the water into the drain trough.

ꢀ NEVER USE ICE TO COOL THE MIRACLEAN

SURFACE. USE OF ICE MAY WARP THE

MIRACLEAN SURFACE.

ꢀ USE ONLY KEATING SUPPLIED CLEANING

TOOLS AND KLENZER.

ꢀ USE ONLY A KEATING STEEL SPATULA.

ꢀ DO NOT CLEAN SCRAPER ON SPLASHBACK,

GREASE BUILD-UP WILL OCCUR WHICH MAY

RESULT IN A FIRE.

ꢀ DO NOT OBSTRUCT THE FLUE. THE FLUE HAS

BEEN DESIGNED SPECIFICALLY TO EXHAUST

THE BY-PRODUCT OF ANY COMBUSTION. ANY

OBJECTS (STEAK WEIGHTS, EGG COVERS,

PANS, RAGS, UTENSILS, ETC.) PLACED ON THE

FLUE WILL INHIBIT THE PROPER COMBUSTION

AND EXHAUST, THEREFORE CAUSING HEALTH

HAZARDS.

Sprinkle with Keating Klenzer.

Polish with a soft cloth (towel). It will sparkle

like new in just a few minutes. Rinse with

potable water to remove excess Keating

Klenzer. Proper care should be taken to fully

clean the griddle on a regular basis.

ꢀ DO NOT USE A POWER WASH, HOSE OR STEAM

CLEANER FOR DAILY CLEANING.

PREVENTIVE MAINTENANCE

Preventive maintenance should be done in daily, weekly,

monthly and yearly intervals as necessary. Following

preventive maintenance procedures will help keep your

CLEANING CONTROL PANEL

Clean any grease build-up on switches and thermostat

knobs.

MIRACLEAN Griddle working efficiently. Proper care and

servicing will lead to years of quality performance.

NOTE: If grease gets into the working mechanism of

a switch or thermostat, it may cause the unit to fail.

GREASE BUILD-UP NEAR ANY OPEN FLAME IS A

FIRE HAZARD.

CLEANING CABINET

The front, back and sides of the cabinet should be kept

clean for sanitary reasons.

CARE OF THE MIRACLEAN® SURFACE

The Miraclean surface is very hard. With proper care,

the MIRACLEAN surface and its unique cooking

properties will last for many years.

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3. Place accurate thermometer on surface over thermostat

bulb. Use the inverted “V” on the front of the griddle plate

to locate thermostat bulb. Place the surface

thermometer about half waytoward the back of the plate.

PREVENTIVE MAINTENANCE CLEANING

CHART

4. When burners cycle off, the griddle is up to temperature.

If temperature is within 25°F of thermostat setting,

remove knob. Loosen four screws in the thermostat dial

plate. Replace knob. Reset the dial plate to match the

thermometer reading.

TIME

OPERATOR/OWNER

FRAME

At Least

Daily

• Clean MIRACLEAN Griddle surface.

• Drain and clean grease drawer.

• Completely wipe down MIRACLEAN

Griddle cabinet.

At Least

Monthly*

• Check MIRACLEAN Griddle surface

to insure proper maintenance.

(Review proper cooking procedures.)

• Check calibration of thermostats.

Thermostat calibration

• Review operating instructions

Thermostat knob removed to reveal calibration screws.

received with MIRACLEAN griddle.

Every

• Clean gas valve vent tube.

6 Months* • Check burner manifold pressure.

5. Remove the knob to tighten screws on dial plate and

replace the knob.

For calibration over a 50°F difference, contact a qualified

service company.

At Least

Yearly*

QUALIFIED SERVICE PERSONNEL ONLY

• Have MIRACLEAN griddle completely

checked, calibrated, tested, cleaned, etc.

by qualified service personnel. Be sure to

check color and height of pilot flame.

DO NOT ADJUST THE THERMOSTAT SET

SCREW - IT VOIDS ANY WARRANTY ON

PART

*High production facilities should be checked more often. Contact the

factory or a local service company to perform maintenance and repairs.

AVOID SERVICE CHECKLIST

Before calling for service, review this list. It may save you

both time and expense. This list includes common

occurrences that are not the result of defective workmanship

or materials in this appliance.

CONDITIONING THE

MIRACLEAN GRIDDLE PLATE

The Miraclean Griddle plate has been “seasoned” at the

factory. The Miraclean surface when heated creates a thin

PROBLEM

Miraclean Griddle

SOLUTION

• Is the gas connected?

layer of chrome oxide which acts as a releasing agent for

food product. You may feel that you need to recondition

your griddle surface.

does not operate:

• Is the gas supply turned on?

• Is the gas valve knob in the ON

position?

1. Follow cleaning instructions on page 5.

• Is the pilot lit?

2. Heat the MIRACLEAN to 400°F for one hour.

• Is the switch turned on?

3. Lower thermostat to 350°F, allowing the MIRACLEAN to

• Is the thermostat set at the desired

position?

cool to about 350°F, as is evident when griddle cycles on

or surface thermometer indicates correct temperature.

4. Lightly coat the MIRACLEAN surface with griddle oil.

WARRANTY REPAIRS

event that your Miraclean Griddle, under warranty, needs

NOTE: Despite the food releasing properties, the chrome surface is not a true

“non-stick” surface. For best cooking results and product appearance, use

griddle oil for products that require the surface to be conditioned.

Keating’s warranty begins with the date of installation. In the

repairs other than routine cleaning, you are requested to

contact KEATING OF CHICAGO, INC. (1-800 KEATING).

PARTS ORDERING

THERMOSTAT CALIBRATION

Calibration is not covered under warranty.

Tools: Accurate surface thermometer

Parts may be ordered by part number by calling Keating at 1-

800-KEATING or your service company. You may also order

on-line at Keating’s part store, www.keatingofchicago.com.

Refer to the Keating MIRACLEAN Griddle Limited Warranty

for complete service and ordering information.

The model/serial plate is located inside the cabinet. Remove

grease drawer. The model and serial numbers are necessary

when ordering.

Standard screwdriver

1. Turn the exhaust system ON.

2. Turn on the griddle with thermostat set at 300°F. Allow

burners to cycle on and off three times. (Approximately

60 minutes.)

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PARTS LIST

MIRACLEAN Griddle

ITEM

DESCRIPTION

CONTRON PANEL FRAME

P/N

1-800-KEATING

GREASE DRAWER

30" & 36" Deep

SWITCH, ROCKER

052505

035030

SPARK IGNITER WITH ELECTRODE

(NO BRACKET)

008327

CONTROL PANEL INSERT

THERMOSTAT 400°F

THERMOSTAT 550°F

1-800-KEATING

037088

023897

6, 7, 8

THERMOSTAT KNOB 400°F

THERMOSTAT KNOB 550°F

DIAL PLATE 400°F

DIAL PLATE 550°F

004163

009914

034870

058038

Figure 6-2

GAS VALVE MILLIVOLT NAT.

023625

L.P.

023624

004803

004805

TAN KNOB ON GAS VALVE

SCREW FOR TAN KNOB

(NOT SHOWN)

Figure 6-3 Natural and Propane Gas Heating Systems

ITEM DESCRIPTION

PART NUMBER

ITEM DESCRIPTION

PART NUMBER

SPARK IGNITION ASSEMBLY

SEE Item 4, Figure 6-2

THERMOPILE

PILOT TUBE (1/4”)

PILOT ASSEMBLY

(ALL NATURAL GAS, 24”-30”

LP, 24”-39” BEF)

NATURAL GAS ORIFICE

PROPANE ORIFICE

BURNER INSERT

MAIN GAS PIPE (3/4”)

STREET ELBOW (3/4”)

UNION

REFERENCE ONLY

005738

002658

1-800-KEATING

004194

022770

007998

029769

029599

MANIFOLD

STREET ELBOW (1/2”)

ORIFICE HOLDER

ASSEMBLY

FITTING (1/2” NPT MALE)

BURNER TUBE (1/2” X 9”)

ELBOW (1/2” x 3/8”)

GAS VALVE, MILLIVOLT

NATURAL GAS

REFERENCE ONLY

000615

1-800-KEATING

006477

007696

007766

REFERENCE ONLY

031477

BURNER

AIR SHUTTERS

MAIN SUPPLY GAS VALVE 3/4"

(not shown above)

023625

023624

PROPANE GAS

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SERVICE DIAGNOSIS

The following diagnosis is only to be used as a guide to qualified service personnel. Keating recommends that you use a

qualified & licensed service company. (Equipment still under warranty requires it.)

NOTE: To correctly and quickly diagnose the system, the chart below should be followed in sequential order.

TROUBLE SHOOTING CHART

PROBLEM

PROBABLE CAUSE

SOLUTION

No Pilot

a. Gas supply not “ON”.

b. Air in gas lines.

a. Open gas supply valve.

b. Press gas valve knob in “pilot”

position and hold.

c. Quick disconnect not engaged.

d. Gas valve is on “OFF” position.

e. Faulty Piezo Ignitor.

c. Reconnect quick disconnect.

d. Turn valve knob to “pilot”.

e. Replace ignitor.

a. Loose wires.

b. Faulty thermopile.

a. Tighten connections on all wires.

b. Replace thermopile.

Pilot won’t stay on

c. Inadequate gas supply.

d. Bad gas valve.

c. Increase line pressure.

d. Replace gas valve.

Pilot on but no main burner ignition

a. Put ON/OFF switch to “ON” position.

b. Turn knob to “ON” position.

a. ON/OFF switch is in “OFF” position.

b. Gas valve is in “pilot” position.

c. Thermostat is not turned on.

d. Low gas presssure.

c. Turn thermostat to desired temperature.

d. Set manifold pressure to 4” WC

(nat),10” WC (LP).

e. Replace valve.

e. Gas valve failure.

Temperature of griddle erratic

Griddle stays hot or overheats

a. Thermostat is not calibrated.

a. Calibrate thermostat with exhaust

system running.

b. Have exhaust hood inspected and

air flow balanced.

b. Air from exhaust hood excessive.

a. Thermostat is not calibrated.

b. Thermostat failure

a. Calibrate thermostat.

b. Replace thermostat.

c. Have exhaust hood inspected and

air flow balanced.

c. Air from exhaust hood excessive.

d. See Cooking Procedure section.

d. Improper Cooking Procedured.

Burners will not shut off

Flames pulsate.

a. Thermostat is not calibrated.

b. Thermostat failure

a. Calibrate thermostat.

b. Replace thermostat.

c. Replace gas valve.

c. Bad gas valve.

a. Low gas pressure

a. Set manifold pressure to 4” WC (nat),

10”WC (LP). Set line pressure to 7” WC

(nat), 11” WC (LP).

b. Clean orifice

b. Orifice is dirty or clogged

c. Air from exhaust hood excessive

c. Have exhaust hood inspected and air

flow balanced.

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3. Snap the new switch into place and reconnect all

wires.

4. Return the control panel to its normal position.

SERVICE

Servicing should only be performed by qualified &

licensed service companies.

THERMOSTAT

GAS VALVE

REGULATOR ADJUSTMENT

Recommended gas pressure at manifold

(4.0" W.C. Natural gas 10.0" W.C. Propane gas)

Adjustment of the gas valve pressure regulator is not

normally necessary since it has been preset at the

factory. During installation, the gas pressure should be

checked at each gas valve with all burners operating.

Adjustment may be accomplished as follows:

REMOVAL AND REPLACEMENT

1. Lower the control panel by removing the

mounting screws.

2. Locate the bulb end of the thermostat and, using

a wrench, loosen the front and rear bolts holding

the thermostat bulb and shield in place.

3. Slide the thermostat bulb assembly towards you

and remove it from under the griddle plate.

4. Remove the knob and the screws from the

thermostat dial plate on the control panel.

5. Remove the body of the thermostat.

This adjustment must be performed by a qualified

technician.

1. Locate the gas valves.

6. Install the new thermostat in the control panel,

2. With the griddle turned off, connect the monometer

replace the dial plate.

to the pressure tap on the gas valve to be tested.

7. Slide the thermostat bulb assembly into the

channel until it reaches the stop.

8. Make sure that the thermostat capillary and bulb

are completely protected by the shield, except for

1” at the tip of the thermostat bulb. (See Note 1).

9. Make sure that the thermostat shield extends to

the front edge of the plate, and that the capillary

goes through the formed end of the shield. (See

Note 2).

10. Make sure that the bolts which hold the

thermostat bulb and shield in place do not touch

the thermostat bulb. (See Note 3).

3. Turn the unit on and take the reading after all the

burners have ignited.

4. Make the necessary adjustments by removing the

screw cap on the pressure regulator cover exposing

the adjustment screw (clockwise will increase the

pressure, counterclockwise will decrease the

pressure).

Always check the screw cap on the pressure tap for

leaks after it has been removed and replaced.

GAS VALVE

REMOVAL AND REPLACEMENT

Disconnect the griddle from the gas supply.

Tighten bolts 1/4 turn past finger tight bulb to be

snug against the bottom of the plate.

DO NOT OVERTIGHTEN THE BOLTS ON THE

THERMOSTAT SHIELD OR THEY WILL

CRUSH THE THERMOSTAT BULB.

1. Lower the control panel. Remove the control panel

surround and upper heat shield.

2. Remove the three wires connected to the gas

valve.

3. Disconnect the pilot and burner feed from the front

11. Close the control panel and replace the panel

of the gas valve.

mounting screws.

4. Access the pipe union at the rear of the gas valve

either from the front of the griddle or remove the

back of the cabinet and loosen the union.

NOTE: IF REPLACING PUSH-ON TERMINAL

STYLE. Before installing thermostat into control

panel, you must unscrew the two brass terminal

screws and install the new ring terminal wire

connectors. Prior to connecting these wires, the

existing push-on terminal must be cut off and ring

terminals installed on them. Make sure that the

terminals are secured down.

5. Remove two nuts on the rear of the gas manifold

and pull the gas manifold forward.

6. Remove the gas valve and transfer the pipe and

fittings to the new gas valve. Transfer the pressure

tap to the new gas valve.

7. Replace the gas valve by reversing the above

12. Calibrate the thermostat using an accurate

griddle thermometer. Locate the thermometer

over the thermostat bulb (shown by the "Λ" on

the front of the griddle plate) about half way

toward the back of the plate. Calibrate to the

cooking temperature you will be setting on the

thermostat.

steps.

Always check for leaks at all joints and connections

using a soap solution mixed with water.

DO NOT USE AN OPEN FLAME TO CHECK FOR

GAS LEAKS.

Double check the wire connections to the gas valve;

improper connection could damage the gas valve.

See Page 11 for

Proper Placement of the Thermostat Bulb

ON/OFF SWITCH

REMOVAL AND REPLACEMENT

1. Lower the control panel by removing the screws.

2. Disconnect the wires on the switch and remove

switch.

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THERMOSTAT BULB PLACEMENT DETAIL

MILLIVOLT CHECK (FOR QUALIFIED SERVICE TECHNICIANS ONLY)

The millivolt valve is a thermopile self-powered combination gas control. Before checking the millivolt system, the following

operations should be performed and observations made:

1. A genuine Keating millivolt thermostat should be used for millivolt operation.

2. The thermostat leads and all wire connections should be cleaned and tightened to eliminate all unnecessary resistance.

3. If pilot will not remain lit when gas valve knob is released, check automatic pilot.

NOTE: The millivolt system and individual components may be checked with a millivolt meter having a 1-1000MV range.

Conduct each check below by connecting meter test leads to terminals as indicated. All readings are closed circuit.

CONNECT METER LEADS TO

TERMINALS

THERMOSTAT

CONTACTS

METER READING

SHOULD BE:

CHECK

TO TEST

BURNER COIL

CLOSED

100mV OR MORE

THERMOPILE OUTPUT

THERMOSTAT LOAD

THTP

OPEN

BETWEEN 325–700mV

DROPS LESS THAN 80mV

BETWEEN 75-25 mV

CLOSED

OPEN

AUTOMATIC PILOT DROPOUT

A. BURNER COIL CHECK

(“A” Reading. Thermostat contacts CLOSED - Gas Valve knob “ON”. Main burner should come ON.)

1. If the reading is more than 100 millivolts and the automatic valve still does not come one, replace the valve.

2. If the closed circuit reading (“A” reading) is less than 100 millivolts, determine cause for low reading and proceed as follows:

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B. THERMOPILE OUTPUT CHECK

BEFORE REPLACING THERMOPILE CHECK

MILLIVOLT READINGS

(“B” Reading. Thermostat contacts OPEN - Main burner

OFF.)

THERMOPILE READINGS

1. Thermopile system - 500 millivolts minimum. If the

minimum millivolt reading is not obtainable, readjust

thermopile for maximum millivolt output. If millivolt reading

is still below minimum specified, replace thermopile.

With all wires connected, with the pilot on and burners

off, the thermopile reading at the TP&THTP terminals

should be ~500mv. With the burners on, the millvolt

reading should be ~200mv.

C. THERMOSTAT RESISTANCE CHECK

WARNING AND OPERATING PLATES

All warning and operating plates on the Keating

(“C” Reading. Thermostat contacts CLOSED - Gas valve

knob “ON”. Main burner should be ON.)

MIRACLEAN Griddle should be in place at all times. If

plates are damaged or lost, replace them immediately.

1. If the “C” reading drops more than 80 millivolts, the

resistance in the system is excessive and must be

reduced. To correct:

a. Clean and tighten thermostat leads and connections.

b. Shorten or replace theirmostat lead wires.

c. Cycle thermostat rapidly (manually turn dial) to clean

contacts.

D. AUTOMATIC PILOT DROPOUT CHECK

1. Hold gas valve knob depressed in pilot position until

maximum output is observed. Then extinguish pilot and

observe meter.

2. Dropout of automatic pilot magnet (sound should be

audible) should occur between 75 millivolts and 25

millivolts. If dropout occurs outside these limits, change

the valve.

MILLIVOLT CONTROL VALVE

To check Resistance of the gas valve, connect one wire

to the valve as shown.

1. Resistance between the THTP & TH terminals

must be 11.5⍀ 0.2⍀

2. Resistance between the THTP & TP terminals

must be 10.0⍀ 0.2⍀

If resistance is outside of specifications listed, the gas

valve must be replaced.

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GAS GRIDDLE WIRING DIAGRAM

CONTROL PANEL

THERMOSTAT

ON/OFF

SWITCH

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SERVICE INFORMATION

If you have a service related question call 1-800-KEATING.

Please state the nature of the call; it will ensure speaking with the appropriate person.

Have your serial and model number available when ordering parts.

KEATING OF CHICAGO, INC.

8901 W. 50th Street, McCook, Illinois 60525-6001

Phone: (708) 246-3000 FAX: (708) 246-3100

Toll Free 1-800-KEATING (In U.S. and Canada)

www.keatingofchicago.com

*As continuous product improvement occurs, specifications may be changed without notice.

KEATING LIMITED WARRANTY CARD

PLEASE COMPLETE AND MAIL AT ONCE–WARRANTY IS NOT IN EFFECT UNTIL CARD IS RETURNED.

WARRANTY CARD IS ALSO AVAILABLE TO COMPLETE ONLINE FOR YOUR CONVENIENCE.

COMPANY: __________________________________________________________________________________________________________________

ADDRESS: __________________________________________________________________________________________________________________

CITY: ______________________________________________________________________________ STATE: ________________ ZIP: ____________

DEALER: ____________________________________________________________________________________________________________________

DATE OF PURCHASE: ________________________________________________________________ INVOICE NUMBER: ____________________

SERIAL NUMBER: ________________________________________

REMARKS: ______________________________________________

ꢁ FRYER

ꢁ FILTER SYSTEM

ꢁ GRIDDLE

ꢁ TOP-SIDE COOKER

ꢁ HOT PLATE

ꢁ PASTA PLUS

I HAVE READ THE INSTALLATION AND OPERATION INSTRUCTIONS.

SIGNED: ____________________________________________________________________________________ DATE:__________________________

“Serving Those Who Serve The Very Best ”

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