Lang ECOQ-AP-WB Operating instructions

Star Manufacturing International 10 Sunnen Drive St. Louis, MO 63143
Part Number: 2M-W732 Phone: [phone] Fax: [phone]
Rev A WWW.STAR-MFG.COM May 18, 2007
Installation
Operation
Maintenance
Troubleshooting
Model: ECOQ-AP-WB
Quarter Size Convection Oven

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1. TABLE OF CONTENTS
CHAPTER PAGE
1. TABLE OF CONTENTS ..........................................................................3
2. OPERATOR WARNINGS (READ FIRST)...............................................4
3. EQUIPMENT DESCRIPTION .................................................................6
4. UNPACKING...........................................................................................7
5. INSTALLATION.......................................................................................8
6. INITIAL START-UP .................................................................................9
7. OPERATION ...........................................................................................10
8. SEQUENCE OF OPERATION ...............................................................15
9. CLEANING & MAINTENANCE PROCEDURES ....................................16
10.TROUBLESHOOTING ............................................................................17
11.PARTS LISTS .........................................................................................20
12.WIRING DIAGRAMS...............................................................................21

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2. WARNINGS
IMPORTANT READ FIRST IMPORTANT
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS
AND 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.
DANGER: 1.) THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL
PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD
RESULT IN ELECTROCUTION AND DEATH.
WARNING: 1.) INSTALLATION OF THIS LANG CONVECTION OVEN MUST BE DONE
BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY.
IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL
AND/OR DAMAGE TO THE EQUIPMENT. THE UNIT MUST BE
INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES.
2.) ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM
COMBUSTIBLE MATERIALS.
3.) BEFORE PERFORMING ANY WORK ON INTERNAL COMPONENTS,
DISCONNECT THE APPLIANCE FROM THE ELECTRIC POWER
SUPPLY.
4.) KEEP WATER AND SOLUTIONS OUT OF CONTROL AND
ELECTRICAL EQUIPMENT. NEVER SPRAY WATER ON THE
APPLIANCE WHICH MAY PERMIT LIQUID TO GET INTO THE
CONTROL AND ELECTRICAL EQUIPMENT AREAS.

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2. WARNINGS CONT’D
CAUTION: 1.) KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY. IF
SPILLS OCCUR, CLEAN IMMEDIATELY, TO AVOID THE DANGER OF
SLIPS OR FALLS.
2.) MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS
MEMBRANES AND CLOTHING. PRECAUTIONS SHOULD BE TAKEN
TO WEAR RUBBER CLOVES, GOGGLES OR FACE SHIELD AND
PROTECTIVE CLOTHING. CAREFULLY READ THE WARNING AND
FOLLOW THE DIRECTIONS ON THE LABEL OF THE CLEANER TO
BE USED.
3.) USE OF ANY REPLACEMENT PARTS OR OTHER THAN THOSE
SUPPLIED BY LANG OR THEIR AUTHORIZED DISTRIBUTOR CAN
CAUSE BODILY INJURY TO THE OPERATOR AND DAMAGE TO THE
EQUIPMENT AND WILL VOID ALL WARRANTIES.
4.) BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW
THE OPERATING INSTRUCTIONS, CAUTIONS AND SAFETY
INSTRUCTIONS CONTAINED IN THIS MANUAL.
5.) SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK
WHEN CUT.
6.) UNIT IS EXTREMELY HEAVY. 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.
NOTICE: 1.) NEVER LEAVE A CHLORINE SANITIZER IN CONTACT WITH
STAINLESS STEEL SURFACES LONGER THAN 10 MINUTES.
LONGER CONTACT CAN CAUSE CORROSION.
IMPORTANT: 1.) SERVICE PERFORMED BY OTHER THAN FACTORY AUTHORIZED
PERSONNEL WILL VOID ALL WARRANTIES.

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3. EQUIPMENT DESCRIPTION
Lang Model: ECOQ-AP-WB
Electric Quarter-Size Convention Oven
Exterior Construction
•The oven exterior dimensions are 19” (48.26cm) Wide, 24” (60.96cm) High, 28”
(71.12cm) Deep (with legs) plus a 1-3/8” (3.49cm) handle extension on the door.
•The Front, Top, and Sides are constructed of stainless steel with an aluminized back
and bottom.
•The oven door comes standard with a window and is reversible for either left or right
directional opening.
•The door handle is constructed of Stainless Steel and Polymer.
•The oven cavity is insulated with high temperature insulation for efficiency and
reduced heat loss.
Interior
•The dimensions of the oven cavity are 15-5/8” (39.68cm) Wide, 13” (33cm) High,
14-1/2” (36.83)(cm) Deep.
•The oven is designed for three shelves and comes with three Chrome Plated Racks.
•The interior air deflection baffle is constructed of stainless steel.
Operation
•The ECOQ-AP is a forced air convention oven with a vented oven cavity.
•The air is driven by a 1/6 HP fan motor.
Controls
•The ECOQ-AP comes with the Lang “Purple” Computerized controls which include:
∗Pre-Programmable Product Selections.
∗Independent Shelf Timers for each Shelf.
∗Load Control through use of Cooking Curves.
∗Shelf Compensation Timing for uniform baking.
Technical
•Oven operates as shipped on either 208 or 240 Volt Single Phase on a 20 Amp.
Circuit. It is shipped with a Power Cord and Plug attached.
•Floor space required is 19” (48.26cm) Wide, 28” (71.12cm) Deep.
•The oven weighs 158 lb. (71.8 Kilograms).
•Each oven is shipped with a stacking kit to stack multiple ovens.

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4. UNPACKING
3.1 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 loss or damage which 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 Lang Manufacturing Company. File your
claim with the carrier.
3.2 Location
Prior to un-crating, move the oven as near 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.
3.3 Un-crating
The oven will arrive completely assembled inside a wood frame covered by
cardboard box and strapped to a skid. Remove the cardboard cover, cut the
straps and remove the wood frame.
CAUTION
OVEN WEIGHS 158 LBS (71.8 kilograms). FOR SAFE HANDLING
INSTALLER SHOULD OBTAIN HELP AS NEEDED OR EMPLOY
APPROPRIATE HANDLING EQUIPMENT TO REMOVE GRIDDLE FROM
SKID.
CAUTION
ANY STAND, COUNTER OR OTHER DEVICE ON WHICH GRIDDLE WILL BE
LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN
(158LBS).
Remove oven from skid and place in intended location.

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5. INSTALLATION
DANGER
THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED.
FAILURE TO GROUND THE APPLIANCE COULD RESULT IN
ELECTROCUTION AND DEATH.
CAUTION
The data plate is located on the back of the oven. The oven voltage,
wattage, serial number, wire size, and clearance specifications are on the
data plate. This information should be carefully read and understood
before proceeding with the installation.
NOTICE
The installation of any components such as a vent hood, grease extractors, fire
extinguisher systems, must conform to their applicable Nationally recognized
installation standards.
4.1 Electrical Connection
The oven is supplied with a cord and plug connected. The plug provided is a NEMA-
L6-20P. The receptacle is not provided with the oven. The installer should install a
NEMA-L6-20R close enough to the oven for the plug to reach the outlet.
Follow the receptacle manufacturer’s instructions when connecting the receptacle to
the power supply.
4.2 Oven Voltage
The Lang Model EQS oven can be operated on 208 Volts or 240 Volt source. The
Amp draw and KW rating at both voltages are listed in the table below.
Model Volt Kw Amperage
1Phase
208.0 3.0 14.0
ECOQ-AP 240.0 3.9 16.0

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6. INITIAL START UP
5.1 PRE-POWER ON
After the oven is installed and connected to power, prior to turning on, verify the
following:
•The door open and closes freely.
•All three racks are in the oven correctly
•All packing materials have been removed from the inside of the oven.
5.2 POWER ON
When the oven is first turned on the display will read “Enter”. The oven will not
begin to heat up at this point. As soon as a product button is pressed, (buttons
numbered 1 through 10), the oven begins to heat to the bake temperature for the
product selected. During this time the display will read “Preheat”. When the oven
reaches the correct temperature for the product selected, the display will read
“Ready”.
If the oven came pre-programmed from the factory, a light will be on next to each
product number which is programmed. Any of the products with the light on can be
selected. After selecting a product button the oven will preheat. Once the oven has
reached it’s programmed temperature, the product button will flash along with all of
the product programs with the same programming temperature. Now select the
product you would like to cook, and then select the shelf that the product was loaded
onto, to begin the cooking cycle.
If there are no product button lights on, it will be necessary to program your products
before the oven will operate. See section 6 Operation, on page 8 of this manual to
learn about programming the oven.
NOTICE
During the first few hours of operation you may notice a small amount of smoke
coming off the oven, and a faint odor from the smoke. This is normal for a new
oven and will disappear after the first few hours of use.

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7. OPERATION
6.1 GENERAL
Convection ovens constantly circulate air over and around the product. This strips
away the thin layer of moisture and cool air from around the product allowing heat to
penetrate more quickly.
Cooking times can be shortened and cooking temperatures can be reduced.
To convert standard deck oven recipes, reduce the temperature 50 degrees and the
time by 25%. Make minor adjustments as necessary.
The lower the oven temperature the more even the bake.
Check the product near the end of the initial cooking cycle by turning on the oven
light and looking through the oven door windows.
Do not open the oven doors during baking as this will change the baking
characteristics of the oven and make it difficult to determine a final program.
If the product is overdone on the outside and underdone on the inside, reduce the
baking temperature.
If the product is pulling away from the edge of the pan, the temperature is too high or
the cooking time too long.
Load each shelf evenly. Spaces should be maintained equally between the pan and
oven walls, front and back.
For best baking results, load the oven from the top to the bottom during random
loading.
6.2 Control Panel
The control panel consists of the following items. Detailed operational descriptions
are given later in this section.
POWER SWITCH Turns the oven on and off.
STATUS DISPLAY Displays the oven status (EntEr, REAdY, DonE etc.) and is
the count down timer.
TIER LIGHTS Displays the tier that the program is running, mainly used
during programming.
PRODUCT BUTTONS Numbered 0 to 9 these buttons contain the programs that,
when selected, will run the oven.
SHELF BUTTONS Labeled A to C these buttons indicate which shelf the product
is placed on, A being the top shelf.
"MAN PROG" Short for Manual Program, this button allows the operator to
enter a time and temperature without being required to enter
the programming code. The program is lost once the oven is
turned off.

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7. OPERATION CONT’D
"TEMP" When pushed, this button will show the current operating
temperature of the oven in the status display.
"READ/CLEAR" Pressing this button twice then pressing a Product button
instructs the oven to "read back" the times and temperatures
for that product button in the status display. It will also
switch the oven from a running program to "EntEr" when
pressed and held until "88888" appears in the display.
6.3 Status Display
The Status Display (Display) informs the operator of the oven's status.
It can be used as a countdown timer, shelf in use or internal oven temperature display
during the cooking cycle (see separate PROGRAMMING instructions).
The Display informs the operator when the oven is ready to bake, or if the oven is
above or below the programmed temperature.
Below is a list of displays and their definitions:
"EntEr" The oven is energized and ready for an operator command.
"PrEht" Stands for PREHEAT. A product has been selected and the
oven is heating to the set temperature.
"rEAdY" A product has been selected and the oven has preheated to
the programmed temperature. The oven is ready to load a
product.
"COOL" The oven's internal temperature is below what is
programmed.
"HOt" The oven's internal temperature is above what is
programmed.
"ShELF" A product selection has been made after the oven has
preheated and the computer is asking which shelf the product
is placed on.
"hELP" There is a fault in the control system, the computer will not
operate until service is performed.
"COnt" Stands for CONTINUOS. The oven has been programmed
without a time being entered. The oven will operate
continuously at the programmed temperature.
"ErrOr" An entry has been made during the programming which is
outside the parameters of the computer.