Garland CG-36, CG-48, CG-60, CG-72, CG-24 User Manual

SERVICE MANUAL

GARLAND GAS

“PRODUCTION GRIDDLES” MODELS: CG-24, CG-36, CG-48, CG-60 & CG-72

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

PLEASE READ ALL SECTIONS OF THIS MANUAL AND RETAIN FOR FUTURE REFERENCE.

THIS PRODUCT HAS BEEN CERTIFIED AS COMMERCIAL COOKING EQUIPMENT AND MUST BE INSTALLED BY PROFESSIONAL PERSONNEL AS SPECIFIED.

IN THE COMMONWEALTH OF MASSACHUSETTS THIS PRODUCT MUST BE INSTALLED BY A LICENSED PLUMBER OR GAS FITTER. APPROVAL NUMBER: G-1-07-05- 8

For Your Safety:

Post in a prominent location, instructions to be followed in the event the user smells gas. This information shall be obtained by consulting your local gas supplier.

Users are cautioned that maintenance and repairs must be performed by a Garland authorized service agent

using genuine Garland replacement parts. Garland will have no obligation with respect to any product that has been improperly installed, adjusted, operated or not maintained in accordance with national and local codes or installation instructions provided with the product, or any product that has its serial number defaced, obliterated or removed,

or which has been modified or repaired using unauthorized parts or by unauthorized service agents.

For a list of authorized service agents, please refer to the Garland web site at http://www.garland-group.com. The information contained herein, (including design and parts specifications), may be superseded and is subject to change without notice.

GARLAND COMMERCIAL INDUSTRIES	GARLAND COMMERCIAL RANGES, LTD.	Enodis UK LTD.
185 East South Street	1177 Kamato Road, Mississauga, Ontario L W 1X	Swallowfield Way, Hayes, Middlesex UB3 1DQ ENGLAND
Freeland, Pennsylvania 18	CANADA	Telephone: [phone]
Phone: [phone]	Phone: [phone]	Fax: [phone]
Fax: [phone]	Fax: [phone]

Part #GCGTRAINING06 (03/03/08)	© 006 Garland Commercial Industries, Inc.
Part #GCGTRAINING06 (03/03/08)	Page 1

IMPORTANT INFORMATION

WARNING:

This product contains chemicals known to the state of California to cause cancer and/or birth defects or other reproductive harm. Installation and servicing of this product could expose you to airborne particles of glass wool/ceramic fibers. Inhalation of airborne particles of glass wool/ceramic fibers is known to the state of California to cause cancer. Operation of this product could expose you to carbon monoxide if not adjusted properly. Inhalation of carbon monoxide is known to the state of California to cause birth defects or other reproductive harm.

Keep appliance area free and clear of combustibles.

Page	Part #GCGTRAINING06 (03/03/08))

TABLE OF CONTENTS

IMPORTANT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 DIMENSIONS AND SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

WHAT IS A CHAIN GRIDDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

How Does it work?.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mechanical.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Gas Supply .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Electrical Power, Lighting & Control.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Ventilation.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Start-Up.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

OPERATION & MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Have The Right Tools And Instruments.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Adjustments.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Pilot Flame Adjustment .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Burner Air .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Removing the Griddle Plate .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Thermostat.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Thermocouple.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

How To Replace A Thermocouple.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Incandescent Lamps.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Pilot Ignition Control (Control Module).. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Gas Valve Regulator.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Power Switches.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Control Circuit.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

CONTROL PANEL SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SERVICE BULLETIN #95-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Part #GCGTRAINING06 (03/03/08)

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DIMENSIONS AND SPECIFICATIONS

	INSTALLATION NOTES		SPECIFY GAS TYPE		ELECTRICAL CHARACTERISTICS
	Combustible Wall Clearances		Operating Pressure		Specifications
	Sides:	Back:	Natural:	Propane:	120 V, Single Phase, 60Hz, 1 amp
	6" (152mm)	6" (152mm)	7" W..C.. (17.4 mbar)	11" W..C.. (24.4 mbar)	6' (1829mm) power supply cord provided..
	• IMPORTANT: Unit must be		• Gas Input Ratings shown are for
			installations up to 2,000 feet (610mm)		• NOTE: No cord and plug on export units..
	installed on legs for proper air
			above sea level.. BTU input ratings must be		Direct connection on junction box..
	circulation..
			derated for high altitude installations..
	ENTRY CLEARANCE		VENTILATION		EXPORT VOLTAGES
	Crated	Uncrated	• Commercial cooking equipment requires		• NOTE: Export voltages are available on
			an adequate ventilation system.. For		request..
	40" (1016mm)	38" (965mm)
			additional information, refer to the
					• 220-240 volt, 50 Hz, 0.4 amps, single
	• See illustration for further
			National Fire Protection Association’s
					phase..
	specifications & size statistics
			standard NFPA96..

Available in 24, 36, 48, 60 & 72 Widths 610, 914, 1219, 1524 & 1829

3" [76mm] Extended Bumper to Prevent Flue Vent Blockage

2.5

84

3.25

83

			Grease Trough									20
							Gas Connection Centered					508
							On Unit Width [Left to Right]
24
38.75 610
984					Electric
												5.5
			Cord/Connection									140

6

152

1.5						5		PLAN VIEW [Model CG-48R]
38								Dimensions - All Models
						127

Grease Drawer(s)
2' & 3' Units - One
4', 5' & 6' Units - Two
Finished Floor	Optional Stand

				DIMENSIONS:			Inches
							mm
5.75		0.625
		16
146				Cooking Surface
			Electric Cord/Connection				15.75
	10						400
			Gas Connection			Rear
254
					Gas Inlet
	4.75						6
35	121
				Counter		Counter152
889	15		Removable	Leg
		Optional	Grease
381		Stand	Drawer 27
			686

Finished 10 Floor

254

SIDE VIEW

INPUT CHART - Natural Or Propane Gas

Model	BTU/		Gas	Shipping
		Kw		Weight
Number	HOUR		Inlet
				Lbs../Kgs..
CG-24R	60,000	17..60	3/4"	335/152
CG-36R	90,000	26.4 0	3/4"	485/220
CG-48R	120,000	35..00	3/4"	625/284
CG-60R	150,000	44..00	3/4"	765/348
CG-72R	180,000	52..70	1"	995/411

FRONT VIEW [Model CG-48R]

Page	Part #GCGTRAINING06 (03/03/08))

WHAT IS A CHAIN GRIDDLE

Commercial chain restaurants impose strict food procedures on franchise owners and operators to guarantee the quality and consistency of the product.. Beef burgers, hamburgers, french fries, onion rings, fried chicken and tortillas for example, must meet rigid standards of quality involving the ingredients used, the recipes followed, storage and, not least, the cooking temperature and time of cooking..

Accuracy of temperature control and the heating stability of the cooking surface are essential in maintaining consistent quality in the product.. Control and stability are the two primary features in the new chain griddle.. As compared with previous gas griddles of the same kind, temperature control of heating zones in the chain griddle is far tighter and more precise..

Two features provide precision control.. One feature is a burner for every foot of griddle surface.. The other is that each burner is electronically monitored for temperature control.. As a result, at 30,000 BTU using natural gas, there is excellent energy management and power recovery..

Temperature sensors are embedded in the griddle plate.. Each sensor is close to the plate surface where the load is.. The effect of this arrangement is to achieve an even temperature gradient across the plate.. Thanks to the electronic monitoring feature, a much faster response to changes in surface temperature is achievable in the chain griddle than in previous units..

The smoother temperature gradient per unit surface area and accurate temperature control has made the chain griddle an instant success.. This simple explanation of the two main features of the unit is what makes it so special.. Without fast response and a smooth gradient, the chain griddle would be just another design among many..

Explaining why the unit is special is one thing and understanding how it works in another.. Service technicians need to know this to have complete confidence when servicing the unit.. We describe how it works in the next part of this section..

Figure 1 -Front view of counter-top chain griddle

	Burner ON amber
	indicator light				Air vents
	Securing	Pilot ON green	Flame
	fasteners		viewport
	for removable	indicator light		Zone		Removable top
	top		thermostat			access panel
	access panel
	Main power					Hinged
	ON
						drop-down
	green
						bottom half
	indicator
						access
	light
						panel
	Main power	Zone power				Leg of counter-top
	switch	switch
				Grease tray		style griddle

How Does it work?

When the main power switch is turned on, the power indicating lamp is illuminated and power is applied to the thermostat input of the ignition modules.. This will initiate the pilot ignition sequence.. The ignition module supplies a spark ignition at the pilot burner and will energize the pilot solenoid valve for a maximum trail period of 50 seconds..

If the pilot flame ignites and is sensed within the 50 second period, the main burner output of the ignition module will be energized.. The pilot indicating lamp will illuminate.. The main burner solenoid valves are then controlled by the thermostats.. As a thermostat calls for heat, it will energize its output and the main burner valve along with the burner indicating lamp will energize.. The main burner will cycle with the thermostat..

There is only one trial for ignition.. If the pilot flame is not sensed during the trail period, the ignition module will lock out.. All ignition module outputs will be de-energized.. To reset the ignition module the main power switch must be turned off for a period of 30 seconds..

Part #GCGTRAINING06 (03/03/08)

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WHAT IS A CHAIN GRIDDLE continued

During normal operation, the pilot flame is continually monitored.. The flame current signal must maintain 0..15 microamps minimum.. Flame failure response time is 0..8 seconds maximum.. If at any time the ignition module does not detect a pilot flame, it will repeat the ignition process by allowing a 50 second trial of ignition..

Figure 2 illustrates this sequence of operation..

Figure 2 – Sequence of Operation

Power				Ignition			Spark	Flame
							o/p	sensor

Pilot valve

Main valve

INSTALLATION

The instructions given for installation form part of the delivery package.. Anyone installing a chain griddle should follow a strict procedure to make sure installation and commission are safe, efficient and complies with the applicable local codes.. Here is a check list of things to do in the order we recommend..

Mechanical

•Uncrate and check for shipping damage both obvious and hidden.. Write a damage report and report immediately to the carrier..

•Check the serial plate behind the front panel.. To do this, remove the front panel by unscrewing the two screws in the upper right and left corners.. Next unscrew the two fasteners securing the hinged lower font panel in place.. Note the burner inputs shown on the serial number plate.. It may be necessary to refer to these later.. You also need to be certain of the type of gas to which the unit is connected.. The serial plate also specifies the type of gas required for the unit.. Also, check that the electrical connections are in good order..

NOTE : The chain griddle is certified for installation on a combustible base with minimum clearance of 6”(152mm) back and 6”(152mm) sides from combustible walls..

•Every unit is fitted with a readily accessible shut-off valve at the main manifold.. Use a minimum of 3/4” NPT pipe to connect the incoming gas supply..

CAUTION : Check the pipe capacity tables given in the installation code.. When a long supply pipe run is necessary, you may have to install a supply line lager than 3/4”

•Have a qualified gas technician check the gas supply to make sure it will deliver the BTUs of gas the unit requires to operate with no more than 1/2” water pressure

drop.. Also when making this check be certain that all equipment on the gas line is turned to the ON position..

•If you are installing the unit using a new gas installation, make sure the supply lines have been cleaned and purged of piping compound, chips and other debris..

WARNING : Use soap solution if you have to check the gas lines for leaks..

•Place and install the unit on the legs or caters provided, and make sure there is a minimum of 4” (102mm) air space below the unit for adequate air flow to the burners..

CAUTION: Check for obstructions or objects that could restrict the air flow to the burners..

•Using a spirit level variously across the front, rear and sides of the unit, level it by adjusting the leveling legs..

Gas Supply

NOTE : For efficient operation, the griddle plate must be level..

Page	Part #GCGTRAINING06 (03/03/08))