Lang GCOF-T User Manual
GAS FULL SIZE
COMPUTERIZED
CONVECTION OVEN
GCOF-T
Installation and
Operation
Instructions
2M-W1349 Rev. A 10/27/15
GCOF-T
SAFETY SYMBOL
These symbols are intended to alert the user to the presence of
important operating and maintenance instructions in the manual
accompanying the appliance.
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. THIS
INFORMATION SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS SUPPLIER.
AS A MINIMUM, TURN OFF THE GAS AND CALL YOUR GAS COMPANY AND YOUR
AUTHORIZED SERVICE AGENT. EVACUATE ALL PERSONNEL FROM THE AREA.
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION,
OPERATION & MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
WARNING, TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE
CONTROL PANEL. NO USER-SERVICABLE PARTS INSIDE.
REPAIRS SHOULD BE DONE BY AUTHORIZED SERVICE PERSONNEL ONLY.
FOR YOUR SAFTEY
THE VICINTIY OF THIS OR ANY OTHER APPLIANCE.
POST IN PROMINENT LOCATION
WARNING
SERVICING THIS EQUIPMENT.
WARNING
RISK OF FIRE OR ELECTRIC SHOCK
DO NOT OPEN
NOTICE
Using any part other than genuine Lang factory supplied parts relieves the manufacturer of all
liability.
Lang reserves the right to change specications and product design without notice. Such
revisions do not entitle the buyer to corresponding changes, improvements, additions or
replacements for previously purchased equipment.
Due to periodic changes in designs, methods, procedures, policies and regulations,
the specications contained in this sheet are subject to change without notice. While
Lang exercises good faith efforts to provide information that is accurate, we are not
responsible for errors or omissions in information provided or conclusions reached as a
result of using the specications. By using the information provided, the user assumes all risks
in connection with such use.
MAINTENANCE AND REPAIRS
Contact your local dealer for service or required maintenance. Please record the model number, serial
number, voltage and purchase & Installation Information in the area below and have it ready when you
call to ensure a faster service.
Model No.:
Serial No.:
Voltage:
Purchased From:
Location:
Purchase
Date:
2M-W1349, GCOF-T Gas Full Size Convection Oven
1-Phase
or 3 Phase:
Installed Date:
2
PROBLEMS, QUESTIONS or CONCERNS
Before you proceed consult you authorized Lang service agent directory
or
Call the Lang Technical Service Department at 314-678-6315.
TABLE OF CONTENTS
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . 5
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation
Leg Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leg Pad Adapter Installation . . . . . . . . . . . . . . . . . . . 8
Stacking the Oven . . . . . . . . . . . . . . . . . . . . . . . . . 9
Flu Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ventilation & Clearence . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . .10
Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Gas Conversions . . . . . . . . . . . . . . . . . . . . . . . . .12
Initial Start-Up
Pre-Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Operation & Programming
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Typical Operation Sequence . . . . . . . . . . . . . . . . . . .14
Hints & Suggestions . . . . . . . . . . . . . . . . . . . . . . . . 15
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Maintenance
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting
Symptoms / Possible Causes / Test . . . . . . . . . . . . . . . . 17
Wiring Diagram
2M-W1349, GCOF-T Gas Full Size Convection Oven
120VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Exploded View & Parts List . . . . . . . . . . . . . . . . . . . . . 20-25
NOTICE ServiceonthisoranyotherLangappliancemustbeperformedbyqualiedper-
sonnel only. Consult your Lang Authorized Service Agent Directory.
You can call our tech service number 314-678-6315
or visit our website www.langworld.com for the service agent nearest you.
3
W D
H
15.1”
384mm
2.5”
54mm
GAS
CONNECTION
2.5”
54mm
GAS
CONNECTION
IL2354
Front View Side View Top View
Model Height x Width x Depth
GCOF-T
32” x 40.2” x 40.5”
812mm x 1021mm x 1029mm
SPECIFICATIONS
Clearance from combustible surface
(without optional stand)
Weight
Installed Shipping
Freight
Class
Side:6” (154mm), Back:6” (154mm), Floor:6” (154mm) 70
ELECTRICAL & GAS SPECIFICATIONS
CURRENT MODEL VOLTS AC Hz. AMPS NAT. PROPANE BURNER INPUT
GCOF-T-NAT
X
115 60 7.1
GCOF-T-LP X
FEATURES & BENIFITS
Interior Light
Accu-Temp Controls
Dual Speed Fan
One hand door opening
5 Racks
55000
2M-W1349, GCOF-T Gas Full Size Convection Oven
IL2355
4
EQUIPMENT DESCRIPTION
Vent
Front
Motor
Wall Anchor
Power Cord
IL2353
Handle
Side Vent
Nameplate
Controls
Gas Inlet
Exterior Construction
The oven exterior dimensions are listed in the Specication Section. The Top, Front, Back, and Sides
are constructed of heavy duty 430 stainless steel, with an attractive No. 4 nish.
The ovens simultaneous-opening heavy duty doors come standard with double pane windows.
The door handle is constructed of Stainless Steel and Phonolic Tubing.
The oven cavity is insulated with high temperature insulation for efciency and reduced heat loss.
Interior Construction
The GCOF oven cavity dimensions are 29” (72.5 cm) Wide, 20” (50.84 cm) High, 21” (53.38 cm) Deep.
The interior of the oven is constructed of porcelainized stainless steel.
Operation
The GCOF-T ovens are forced air convection ovens with a vented oven cavity.
The air is driven by a 1/3 HP fan motor.
Controls
Easy to use manual control knobs.
Solid state temperature sensing and controls.
Pulse and two-speed fan.
Technical
The GCOF-T has electronic ignition and requires a 120V single-phase connection.
2M-W1349, GCOF-T Gas Full Size Convection Oven
Floor space required is 46” (116.84 cm) wide, 46.5” (118.11 cm) deep.
The oven weighs 500 lbs.
Contact the factory for correct orice sizes when installing oven above 4000 ft.
NOTICE The nameplate is on side of the oven right of the control panel.
The oven voltage, wattage, serial number, wire size, and clearance
specicationsareonthedataplate.Thisinformationshould
be carefully read and understood before proceeding with the
installation.
5
CAUTION
UNPACKING
Receiving the Oven
Upon receipt, check for freight damage, both visible and concealed.
Visible damage should be noted on the freight bill at the time of delivery and
signed by the carrier’s agent. Concealed loss or damage means it does not
become apparent until the merchandise has been unpacked. If concealed
loss or damage is discovered upon unpacking, make a written request for
inspection by the carrier’s agent within 15 days of delivery. All packing
material should be kept for inspection. Do not return damaged merchandise
to Star Manufacturing Company. File your claim with the carrier.
Location
Prior to un-crating, move the oven as near to its intended location as practical. The crating will help
protect the unit from the physical damage normally associated with moving it through hallways and
doorways.
Un-crating
The oven will arrive completely assembled inside a wood frame and strapped to a skid. Cut the
straps and remove the wood frame.
The oven can now be removed from the skid.
EACH UNIT WEIGHS 500 LBS. FOR SAFE HANDLING, INSTALLER SHOULD
OBTAIN HELP AS NEEDED, OR EMPLOY APPROPRIATE MATERIALS HANDLING EQUIPMENT (SUCH AS A FORKLIFT, DOLLY, OR PALLET JACK)
TO REMOVE THE UNIT FROM THE SKID AND MOVE IT TO THE PLACE OF
INSTALLATION.
ANY STAND, COUNTER OR OTHER DEVICE ON WHICH OVEN WILL BE
LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN.
SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.
2M-W1349, GCOF-T Gas Full Size Convection Oven
6
INSTALLATION
Rear
Support Assy
Front
Front
Support Assy
Above: typical leg and caster installation.
Below: accessory options, legs, casters & equipment carts sold
separately. Follow installation instructions with the each specic kit.
Swivel
Caster
Leg Installation
Legs are available separately for both the
single and double deck installations. Single
deck installations require a 27-inch leg or
equipment cart. Double deck installations
require 6-inch legs or casters. All these are
available separately.
Place some cardboard on the ground and
with assistance carefully lay the unit on its
side, as shown here.
The adjustable feet may be screwed in
or out as necessary to level the oven. A
torpedo level placed on an oven rack will
assist in leveling the oven.
Double-Stack Ovens
To install the 6-inch legs, adj. feet or casters
on the lower unit, follow the Leg Pad
instructions in the following section or in the
instructions included with the leg pads.
Caster
IL2356
Single Oven
To install 27” legs or cart to your unit, place
the unit laying on its side (as shown here)
onto a piece of cardborad. Be sure to read
all instructions & follow the instructions
provided with the kit.
27” Leg Installation
With unit in position, fasten the two legs to the front left & rear left corner pads then to the oven using the four
5/16 inch bolts provided in the leg kit. See leg pad adapter illustration to dermine differences between front & rear
support assemblies.
Lift the oven onto its two legs and block the right side up using one of the 27-inch legs set upside down in the
center right side of the oven body. Install the third 27-inch leg onto the oven body on the control side rear. Gently
lift the oven to remove the temporary support leg & install it on the last rear corner.
Accessory Options
Stacked Units
Caster Sets
2M-W1349, GCOF-T Gas Full Size Convection Oven
6” Adj. Leg Sets
Single Units
27” Leg Set
(marine also)
27” Equipment Cart
6” Adj. Bolt Down Leg Sets
(marine only)
IL1525
7
INSTALLATION cont.
Leg Pad Adapter
OVEN FRONT
D
A
E
E
B
E
E E E E
Above: Bottom on unit showing the placement of the leg adapters
and their hole assignment.
D D D
A A
C
OVEN BOTTOM
C
B
IL1523
C
C
B
B
and the other set will create a right rear adapter.
Install four 5/16-inch bolts through the caster base and the adapter holes labeled “B” then install 5/16-inch nuts with
lock washers and at washers.
Adapter to Oven Installation:
Gently tip the oven onto its back. Place the front leg adapter into the front corers of the oven. The holes without
the threaded inserts face the front of the oven and the ange on the adapter points toward the bottom of the oven.
The edge of the leg adapter with the threaded insert slips under the ange on the oven side, while the edge without
the inserts sits on top of the threaded angle on the oven front.
Install two 3/8-inch bolts with lock washers and at washers through the front holes “D” in the leg adapter and into
the threaded inserts on the oven.
Thread one 3/8-inch bolt with lock washer and at washer into the rear threaded hole labeled “E” on each of the leg
adapters.
The forward threaded hole on the front leg adapter does not get a bolt installed.
Place the rear leg adapters into the rear corners of the oven so that the adapter is under the ange of the oven side
and back.
NOTE: If installing a caster place the adapter on the oven so that the casters roll forward.
Install for 3/8-inch bolts with lock washers and at washers through the holes labeled “E” in the ange of the oven
and into the threaded inserts of the leg adapter.
Identify the front and rear leg adapters (the front
adapters have two threaded inserts, the rear has
four). The leg adapters are included with each specic
accessory kit.
A
Leg to Adapter Installation:
E
Install the leg’s threaded stud through the hole in the
adapter labeled “C” with the bent ange of the adapter
facing away from the leg.
Screw the 3/4-inch nut supplied in the adapter kit
onto the leg stud and tighten. Secure to oven using
hardware provided.
Caster to Adapter Installation:
Place the swivel caster against the front leg pad
adapter with the ange of the adapter
E
facing away from the caster.
Install the four 5/16 inch bolts through the caster base
and the adapter holes labeled “A” then install the 5/16
E
inch nuts with washer and lock washers.
Place the rigid casters against the rear leg adapter with
the ange of the adapter facing away from the caster.
Align the caster to the holes in the adapter labeled “B”.
NOTE: There are two sets of “B” holes set at 90° from
the each other. One set will create a left rear adapter
2M-W1349, GCOF-T Gas Full Size Convection Oven
8
INSTALLATION cont.
Flue Adapter
Stacking the Ovens
Remove all the plug buttons from the top of the lower oven.
Remove the stacking kit from the oven compartment of one oven and install the 1 1/4-inch plastic bushing into
the top of the lower oven.
Tip the top oven backwards and install two 3/8-inch socket 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 socket head bolts with the heads of the bolt
pointing away from the oven.
Lift the top oven and gently set on top of the lower oven so that the heads of the socket head bolts nest into the
holes in the top of the lower oven.
NOTE: Each unit must have separate electrical connections
Flue Installation (9Q-GCOFT-FLUEXT Optional Kit)
A ue extension must be installed on the stacked set as shown below.
The extension directs the heat of the lower unit away from the motor of the upper unit. Without this installed, the
upper unit can experience problems including premature motor failure.
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 oor.
Flue
Extension
2M-W1349, GCOF-T Gas Full Size Convection Oven
Cover
Front
Flue
Adapter
IL2509
9
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