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A spirit level, placed on an oven rack, will assist 
in leveling the oven. 

STACKING THE OVENS 

Remove all of the 

plug buttons 

from the top of 

the 

lower oven

Remove the 

stacking kit

 from the oven 

compartment. 

Tip the 

top oven

 backwards and install two 3/8 

diameter Allen Head bolts (found in the stacking 
kit) into the two front leg holes that match the 
holes in the top of the lower oven.  Install the 
Allen Head bolts with the heads of the bolts 
pointing away from the oven. 

Lift the top oven and gently set on top of the 
lower so that the heads of the bolts nest into the 
holes in the top of the lower oven. 

FLU EXTENSION 

A flu extension must be installed on the lower 
oven of a stacked set.  The extension attaches to 
the flu opening of the lower oven and directs the 
flu products into the flu opening of the upper 
oven.  

This extension must be installed.

 

The ovens may now be set into position.  Be 
careful if sliding the ovens, they are not designed 
to slide over cracks or obstructions in the floor. 

GAS CONNECTION 

DANGER 

AS WITH ANY GAS APPLIANCE INSTALLED ON CASTERS, 
ANY LANG GAS GRIDDLE, GAS CLAMSHELL

®

, OR GAS 

CONVECTION OVEN ON CASTERS MUST BE INSTALLED 
WITH THE FOLLOWING: 

A CONNECTOR THAT COMPLIES WITH THE STANDARD 
FOR CONNECTORS FOR MOVABLE GAS APPLIANCES, 
ANSI Z21.69 LATEST EDITION. 

AND 

A QUICK DISCONNECT THAT COMPLIES WITH THE 
STANDARD FOR QUICK DISCONNECT DEVICES FOR USE 
WITH GAS FUEL, ANSI Z21.41 LATEST EDITION. 

AND 

A TETHER OR OTHER MEANS TO LIMIT APPLIANCE 
MOVEMENT WITHOUT RELIANCE ON THE GAS SUPPLY 
PIPING.  SECURELY ATTACH THE TETHER TO THE 
EYEBOLT PROVIDED AT THE REAR OF THE APPLIANCE. 

FAILURE TO INSTALL THESE PARTS CAN LEAD TO 
LEAKAGE OF GAS AND RESULTING FIRE, EXPLOSION, 
PERSONAL INJURY AND DEATH. 

This appliance is manufactured for use with the 
type of gas indicated on the data plate.  Contact 
the factory if the gas type does not match that 
which is on the data plate. 

All gas connections must be in accordance with 
local codes and comply with the National Fuel 
Gas Code ANSI Z223.1 latest edition. 

A internal gas pressure regulator is located 
inside the control compartment. 

Gas must be delivered to the appliance regulator 
at less than 1/2 pound of pressure and less than 
1/2 inch water column pressure drop. 

The internal regulator is preset at the factory, 
however, due to gas pressure variations from 
area to area, adjust the regulator to provide the 
manifold pressure indicated on the data plate.  
This should be 5 inches water column for natural 
gas and 10 inch water column for propane.  A 
1/8 inch NPT tap is provided on the main 
manifold for checking regulator pressure. 

 

Access the main manifold by removing the trim 
piece below the oven doors. 

When replacing the 1/8 inch plug in the main 
manifold a joint sealant that is resistant to the 
action of liquid petroleum gas must be used. 

The supply piping must be of sufficient size to 
provide 55,000 BTU/hr per oven.  A 1/2 inch 
NPT connection is provided at the rear of the 
oven directly behind the control compartment. 

Connect each oven separately. 

A gas shut off valve must be installed to the 
oven(s) and located in an accessible area. 

This 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 PSGI (3.45 
kPA) and the appliance must be isolated from 
the gas supply piping 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 
kPA). 

Test for gas leaks.  Use a commercial leak 
detector or a soap and water solution. 

WARNING 

DO NOT USE AN OPEN FLAME TO TEST 
FOR GAS LEAKS. 

ELECTRICAL CONNECTION 

WARNING 

ELECTRICAL GROUNDING 

INSTRUCTIONS 

Summary of Contents for GCCO-C

Page 1: ...Lang Manufacturing Company 10 Sunnen Drive St Louis MO 63143 Part Number 60800 13 Rev C Phone 314 687 6315 Fax 314 781 2714 September 1 2011 Installation Operation Maintenance Model GCCO C...

Page 2: ...s Obtain these instructions from your local gas supplier FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other gas appliance In the ev...

Page 3: ...1 STACKING THE OVENS 2 FLU EXTENSION 2 GAS CONNECTION 2 ELECTRICAL CONNECTION 2 INITIAL START UP 3 OPERATION 4 GENERAL 4 CONTROL PANEL 4 STATUS SCREEN 5 TYPICAL OPERATION 5 MANUAL BACK UP 6 TEMPERATU...

Page 4: ...oor or a curbed base maintain a 4 inch back clearance If the oven is set directly against a non combustible back wall maintain a 6 inch clearance to the floor Do not install the oven closer than 3 inc...

Page 5: ...pe of gas indicated on the data plate Contact the factory if the gas type does not match that which is on the data plate All gas connections must be in accordance with local codes and comply with the...

Page 6: ...upply wire size must be large enough to carry the amperage load for the number of ovens being installed Wire size information can be found on the oven data plate INITIAL START UP WARNING PRIOR TO STAR...

Page 7: ...king results during random loading load the oven from the top to the bottom CONTROL PANEL The control panel consist of the follow items LIGHT SWITCH Turns the oven interior lights On and Off POWER SWI...

Page 8: ...d temperature COOL A product change has been made and the oven s internal temperature is below the new product HOt A product change has been made and the oven s internal temperature is above the progr...

Page 9: ...cating which product is being baked To check the remaining cook time of a product that is baking press the corresponding Shelf Button The Status Screen will display the remaining time in the cooking c...

Page 10: ...he Status Screen will scroll through the product program parameters temperature time etc Always start the read sequence with the Status Screen displaying EntEr MANUAL BACK UP Should the computer contr...

Page 11: ...lso be cleaned with a mild soap and water solution Discoloration or heat tint may be removed with any of the following cleaners Penny Brite Copper Brite Du Bois Temp or Past Nu Steel Always apply thes...

Page 12: ...allation MOTOR REMOVAL WARNING DISCONNECT THE OVEN FROM POWER Remove the oven racks and rack slides from the oven cavity Remove the four thumb screws located at the corners of the fan baffle Remove th...

Page 13: ...entire motor assembly into the oven compartment The safety thermostat is bolted to the back side of the motor plate next to the blower motor Remove the screws holding the safety thermostat bracket to...

Page 14: ...H Output to Contactors 2 Microprocessor A 12 Volt Supply B Ribbon Connections 3 Beeper Board 4 Power Switch 5 Manual Back up Thermostat ITEM NO DESCRIPTION 7 Manual Back up Switch 8 Motor Contactor 1...

Page 15: ...00 35 Orifice Main Natural Gas 80400 13 Orifice Main Propane 80400 14 Orifice Pilot Natural Gas 80401 10 Orifice Pilot Propane 80401 05 Rack Slide 50200 32 Rack Oven 50200 59 Relay Manual Back up 3060...

Page 16: ...13 GCCO C WIRING DIAGRAM...

Page 17: ...ing the warranty period As to warranty service in the territory described above Lang will absorb labor and portal to portal transportation costs time mileage for the first 12 twelve months from the da...

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