Lang ECCO-SII Service Manual

Service Manual for the Lang Models:

ECCO-T, ECCO-AP, ECCO-SII, ECCO-C, ECCO-PP, ECCO-PT,

Lang Manufacturing Company 6500 Merrill Creek Parkway Everett, WA 98203
Phone: [phone], Fax: [phone]
www.langworld.com ©Copyright 2000

TABLE OF CONTENTS

CHAPTER

1. TABLE OF CONTENTS .......................................................................1

2. READ FIRST........................................................................................2

3. EQUIPMENT DESCRIPTION ..............................................................4

4. INSTALLATION.................................................................................... 6

5. START-UP ...........................................................................................7

6. CONTROL PANEL LAYOUT................................................................ 8

7. PROGRAMMING TERMS....................................................................14

8. PROGRAMMING .................................................................................15

9. GENERAL OPERATION ...................................................................... 25

10. TYPICAL OPERATION .......................................................................27

11. SEQUENCE OF OPERATION .............................................................30

PAGE

12. TROUBLESHOOTING .........................................................................34

13. TECHNICAL DATA ..............................................................................46

14. WIRING DIAGRAMS............................................................................ 52

15. PARTS LIST.........................................................................................64

1

IMPORTANT READ FIRST IMPORTANT

EACH UNIT WEIGHS 430 LBS. FOR SAFE HANDLING, INSTALLER SHOULD

CAUTION

CAUTION

CAUTION

DANGER

WARNING

NOTICE

NOTICE

NOTICE

CAUTION

CAUTION

WARNING

CAUTION

NOTICE

NOTICE

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.

THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED.
FAILURE TO GROUND THE APPLIANCE COULD RESULT IN
ELECTROCUTION AND DEATH.

INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED
TO WORK WITH ELECTRICITY AND PLUMBING. IMPROPER
INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE
TO EQUIPMENT. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL
APPLICABLE CODES.

The data plate is located above control panel behind wire mesh screen. 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.

The installation of any components such as a vent hood, grease extractors,
fire extinguisher systems, must conform to their applicable National, State
and locally recognized installation standards.

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.

ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM
COMBUSTIBLE MATERIALS.

KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY. IF SPILLS
OCCUR, CLEAN IMMEDIATELY, TO AVOID THE DANGER OF SLIPS OR
FALLS.

KEEP WATER AND SOLUTIONS OUT OF CONTROLS. NEVER SPRAY OR
HOSE CONTROL CONSOLE, ELECTRICAL CONNECTIONS, ETC.

MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS
MEMBRANES AND CLOTHING. PRECAUTIONS SHOULD BE TAKEN TO
WEAR RUBBER GLOVES, GOGGLES OR FACE SHIELD AND PROTECTIVE
CLOTHING. CAREFULLY READ THE WARNING AND FOLLOW THE
DIRECTIONS ON THE LABEL OF THE CLEANER TO BE USED.

Never leave a chlorine sanitizer in contact with stainless steel surfaces
longer than 10 minutes. Longer contact can cause corrosion.

Service on this, or any other, LANG appliance must be performed by
qualified personnel only. Consult your authorized service station directory
or call the factory at 1-800-224-LANG (5264), or WWW.LANGWORLD.COM
for the service station nearest you.

2

IMPORTANT READ FIRST IMPORTANT

BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE

WARNING

CAUTION

WHEN THE UNIT IS PLUGGED/WIRED INTO A LIVE RECEPTACLE.
BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE
ELECTRIC POWER SUPPLY.

USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY
LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY
INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL
VOID ALL WARRANTIES.

3

EQUIPMENT DESCRIPTION

Lang Model: ECCO

Electric Full Size Convention Oven

EXTERIOR

• The oven exterior dimensions are 40” (100 cm) Wide, 27” (67.5 cm) High, 38” (95 cm) Deep. The
Top, Front, Back, and Sides are constructed of stainless steel with an aluminized bottom.

• The oven 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 efficiency and reduced heat loss.

INTERIOR

• The oven cavity dimensions are 29” (72.5 cm) Wide, 20” (50.84 cm) High, 21” (53.38 cm) Deep.

• The oven is designed for a maximum of five shelves and comes with five Chrome Plated Racks.

• The interior of the oven is constructed of porcelainized stainless steel.

OPERATION

• The ECCO oven is a forced air convection oven with a adjustable vented oven cavity.

• A 1/3 HP fan motor drives the air.

CONTROLS

• The ECCO is available either with the Lang Accu-Temp (ECCO-T), Accu-Plus (ECCO-AP),
Selectronic (ECCO-SII), “Purple” Computer (ECCO-C), “Purple Plus” Computer (ECCO-PP), and
the “Platinum” Computer (ECCO-PT):

• ECCO-T

 Easy to use manual control knobs.
 Pulse and two speed fan.

• ECCO-AP

 Easy to use manual control knobs.
 Pulse and two-speed fan.
 Solid State temperature sensing and controls.

• ECCO-SII

 Complete Computerized Controls.
 Solid State temperature controls.
 Digital Display

4

EQUIPMENT DESCRIPTION CONT’D

• ECCO-C

 Complete Computerized Controls with a Manual Override system.
 Programmable up to 10 products with four “tiers” for each program.
 Independent Shelf Timers for each Shelf.
 Load Control through use of Cooking Curves.
 Shelf Compensation Timing for uniform baking.
 Single speed fan.

• ECCO-PP

 The Purple Plus offer the same great one touch system of the Purple, coupled

with the advanced baking capabilities of the new Platinum

• ECCO-PT

 Icon-driven (touch) panel allows for easy operation, also includes a manual

override system.

 Day-Part Memory capabilities allow operators to “recall” the last daily

selections automatically.

 Programmable up to 99 products, advanced baking capabilities include: a

12:59:59 timer with ten “tiers”.

 Independent Shelf Timer for each Shelf.
 Load Control through use of Cooking Curves.
 Shelf Compensation Timing for uniform baking.
 Dual speed fan.

5

INSTALLATION

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.

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.

LEG INSTALLATION

Legs are available for both the single and double deck installations. Single deck installations require a 27­inch leg. Double deck installations require 6-inch legs or casters.

To install the 27-inch legs, place some cardboard on the floor and gently tip the oven onto its back. Fasten
two legs to the oven's front corners using the four 5/16 inch bolts provided in the leg kit. Lift the oven onto
its front legs and block the back up using one of the 27-inch legs set upside down in the center rear of the
oven body. Install the last 27-inch leg onto the oven body on the control side rear. Gently lift the oven
rear, remove the leg set to support the oven center and install it on the last rear corner.

To install the 6-inch legs or casters, attach the leg or caster to the leg supports supplied in the oven by
following the instructions in the box, then attach the leg support to the oven.

The adjustable feet on the bottom of each leg may be screwed in or out as necessary to level the oven.

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.

ELECTRICAL CONNECTION

The electrical service entrance is provided by a 1 1/4-inch knockout in the bottom right front corner of each
oven, or at the oven back directly behind the control compartment. Grounding lugs are provided at both the
front and rear service entrances.
The 208/240-volt oven is a dual voltage oven and is shipped from the factory as 208 volt. The oven must
be field converted to operate on a 240-volt power supply.
To convert the oven to 240 volt, remove the jumper wire located on a terminal strip located inside the lower
portion to the control compartment. On newer oven a toggle switch is provided at the back of the unit for
this purpose.
With 480-volt installations check to be sure that the motor rotates in a clockwise direction as viewed from
the front of the oven.
To reverse the motor rotation, switch any two incoming power supply leads and recheck the rotation.
Supply 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.
This oven can be installed on both single and three phase supplies and is shipped from the factory for three
phase.
To phase the oven to match the power supply, follow the charts in the Technical Data portion of this
manual or to the wiring diagram for proper wire size and grouping.

6

START-UPS

ECCO-AP / ECCO-C / ECCO-PP / ECCO-PT / ECCO-SII / ECCO-T

Convection Oven Start-Up

1) Verify connections at plug and terminal block

2) Incoming Volt - Single Phase L1-L2______

Three Phase L1-L2______ L2-L3______ L3-L1______

3) Amp draw L1______

L2______
L3______

4) Motor amp draw ______

5) Are programs correct? Yes No

6) Verify actual temperature at 350 °F ________ °F.

Note:
Install thermocouple wire in center of oven cavity.
Let oven cycle off and on 3 times before recording temperature.

Set Temperature for 350 °F

Model #_______ Date_______ Serial #________

Store #___________ Tech Name___________________
Contact_______________ Company _________________________
Store Phone #___________ Service Company Phone #______________

Address_____________________
______________________
______________________

7

CONTROL PANEL ECCO-T

Vent Knob.

ON

Power switch.

OFF

Pulse fan switch. Pulse fan
setting will only turn the fan
on when the oven is calling

Temperature Control. Allows
temperature to be set from
100°F - 450°F in 50°F.

LIGHT

PULSE FAN HI-SPEED

FAN

LOW-SPEED

TEMP

TIME

Light switch. Inspection light
only. Push toggle switch to the
up position to inspect product.
Switch will automatically return to
the off position.

Dual speed switch.
Toggles the fan between
high and low speed.

Timer Control. Electronic one
hour timer with continuous
beeper.

8

CONTROL PANEL ECCO-AP

Vent Knob.

ON

Power switch.

OFF

Pulse fan switch. Pulse fan
setting will only turn the fan
on when the oven is calling

Temperature Control. Allows
temperature to be set in 25°F
increments from 140°F.

LIGHT

PULSE FAN HI-SPEED

FAN

LOW-SPEED

TEMP

TIME

Light switch. Inspection light
only. Push toggle switch to the
up position to inspect product.
Switch will automatically return
to the off position.

Dual speed switch.
Toggles the fan between
high and low speed.

Timer Control. Electronic one
hour timer with continuous
beeper.

9

CONTROL PANEL ECCO-SII

A

p

Vent Knob.

Light switch. Inspection light only.
Push toggle switch to the up
position to inspect product. Switch
will automatically return to the off
position.

Pulse fan switch. Pulse fan
setting will only turn the fan
on when the oven is calling

LED Display.

ON

OFF

LIGHT

PULSE FAN HI-SPEED

FAN

TEMP/TIME

COOK N HOLD

LOW-SPEED

8 8 8

Power switch.

Cook N Hold switch.
Oven will automatically
drop to 140°F when oven
timer stops timing down.

Dual speed switch.
Toggles the fan between
high and low speed.

Adjustment Arrows.

djusts the LED display

for time and temp.

TEMP TIMER

Temp Button. Press
to set desired temp.

10

START

STOP

BUZZER

Start/Stop Button. Starts
and sto

Timer Button. Press to
set desired time.

s the timer.

Power Switch

LED Display

CONTROL PANEL LAYOUT ECCO-C

Light switch

Tier Indicator: Displays what Tier
(cycle) of a certain program is
running.

Product Button: Used to
program and store product
into the computer.

Manual Program Button:
Used to input a one time
only program.

Shelf Button: Used to tell the
oven which shelf the product
is on.

Read/Clear Button: Used as a
programming key.

Temperature Button: Press at any
time to display oven temperature.

11

CONTROL PANEL LAYOUT ECCO-PP

Light switch. Inspection light only.
Push toggle switch to the up
position to inspect product. Switch
will automatically return to the off
position.

AlphaNumeric Display.

Product Select Button.
Press to select desired
product.

LIGHTS

On

Off

POWER

On

Power switch.

Off

Shelf Select Button. Press
to select shelf which

1

2

6A

7

B

product will be placed.

Manual Program Button.
Use when product being
cooked is for one time only.

3

4

5

Man

Prog

12

8

C

9

D

0

E

Read/Clear Button. Used

Read
Clear

to read programs, clear
programs, and to access
program menu.

p

y

Function keys. Keys are
active when a program
option is displayed on
display.

CONTROL PANEL LAYOUT ECCO-PT

Alpha-Numeric Display.

Cancel button. When
scrolling through menu’s
this will allow you to back
up to the previous menu.
In program mode this will
allow you to advance to the
next ste

Arrow up button. Allows

ou to scroll up.

.

X

Cancel

Up Down Light

P L A T I M U M

Light switch. Inspection light only.
Push for light to come on. Light will
automatically turn off.

Power switch.

On/Off

Arrow down button. Allows
you to scroll down.

13

CONTROL PANEL BUTTONS

PROGRAMMING TERMS

1 -0

A - E

Man Prog

READ/CLEAR

Temp

Product Buttons. These are the buttons where the product programs are stored.
Pressing a Product Button will heat the oven to the programmed temperature.
Shelf Buttons. The control is capable of timing each shelf individually. Pressing a
Product Button then a Shelf Button will start the countdown timer.
The MANUAL PROGRAM button allows the operator to enter a temporary
product program without being required to input the programming code. The
temporary program is erased when the oven is turned off or when a new program is
entered. Time and temperature are the only parameters that can be entered in the
Manual Program mode.
The READ/CLEAR button has several functions.

 It is always the first button pressed when entering programming codes.
 Pressing it twice then pressing a Product Button will "read-back" the program

in that product button.

 Pressing and holding the button down until "88888" appears in the display will

cancel the current mode of the control and return the display to "Enter".

When the Temperature Recall Button is pressed, the display will indicate the
internal oven temperature. When released the display will revert to the previous
readout.

PROGRAMMING TERMS

COOKING CURVE

FAN FUNCTION

TIER

Cooking curve is a function of the computer that controls the cooking time. If the
temperature of the oven is lower than the programmed temperature, the control will
slow the timer down to compensate for the lower cooking temperature. Cooking
Curves from 0 - no time adjustment to 7 - maximum adjustment are available.
Cooking Curve 3 is the most commonly used. However, as a general rule the
longer the cooking time the lower the cooking curve, the shorter the cooking time
the higher the cooking curve.

The convection fan has two programmable options. Fan On (Fan 1) runs the
convection fan continuously. Fan Off (Fan 0) leaves the fan off until heat is called
for by the control. In a convection oven, the fan must
comes On. The convection fan cannot

"Tiered" programming is the ability to change the cooking temperature or fan
function during the cooking cycle. As an example, some products require the fan
to be Off for the first half of the cooking cycle then turn On for the last half, Tier 1
would be programmed with the fan in the Off mode then Tier 2 would be fan On.
The Tier lamps located below the display (labeled T1, T2, T3, and T4) will
illuminate to indicate which Tier is being programmed or which Tier the program
is in during the cooking cycle.

come On whenever the heat

be turned Off continuously.

14

PROGRAMMING

ACTION DISPLAY

Turn the power switch on. If the oven is already on,
turn it off and then back on.

PROGRAMMING ECCO-C

enter

Quickly enter access code “R/C 1 6 2 7 3 8”. Do
not hold the R/C button.

Select a Product number from 0-9.

Select amount of time that product should steam. If
no steam is required press the shelf “A” button to
advance to the next step.

Note: If oven is not strapped for steam convection

then this step will not be provided.

Select a Temperature from 150°F-450°F.
NOTE: Entering “000” will erase the existing
program.

Select the desired cooking curve from 0-7.

Enter a desired Fan setting.

“0” (nofan) Will make the fan pulse with the heat.

“1” (fanonhi) Will make the fan run on high

continuously.

“2” (fanonlo) Will make the fan run on low

continuously.

Enter the desired cooking time
(hours:minutes:seconds)

prod

St: 00

000°F

CC0-7

Fano12

00: 00: 00

000°f

The program is now entered for a single tier
program, press the “E” button to continue
programming other products. If the program is a
multi tiered program continue by programming the
next tiers. When complete press the “E” button.

When the programs have been completely entered
press the “R/C” button to save and exit the
programming cycle.

prod

enter

15

PROGRAMMING ECCO-C CONT’D

ECCO-C STATUS DISPLAY

The Status 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 ECCO-C Programming Codes pg. 16).

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 programmed 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 “CONTINUOUS”. 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 the computer

does not understand.

16

PROGRAMMING ECCO-C CONT’D

ECCO-C PROGRAMMING CODES

Below are codes, which will allow you to configure the display or aid in the operation, and troubleshooting of
the oven.
The readout must display "ENTER" before the computer will accept any programming code. If the readout
displays any other word, reset the computer by pressing and holding the “R/C” button until display reads
“88888” then release. Display should now read “ENTER”.
The control allows for a 3-second delay between each button push, if a delay of longer than 3 seconds has
occurred, the programming code must be re-entered.
The instructions call for pressing exactly what is shown under "PRESS".

CODE DESCRIPTION PRESS

• OPERATIONAL

Recall time remaining on a shelf Shelf

Cancel a shelf timer R/C, R/C, Shelf

• DISPLAY MODES

Countdown timer display R/C,4,8,4,8,4,8

Shelf in use display R/C,0,9,0,9,0,9

Internal oven temperature display R/C,8,7,8,7,8,7

• PROGRAMMING

Enter programming mode R/C,1,6,2,7,3,8

Recall an existing product program R/C, R/C, P (Product programmed)

Erase a product program R/C,1,6,2,7,3,8 (P) (000)

Model identification R/C, D,C,D,C,D,C

Fan Setting ( HI or Both) R/C,E,D,C,B,A,1(high),2 (both)

Program download (Contact Factory) R/C, A, B, C, D, E, P

• MAINTENANCE

Actual oven temperature

Return to ENTER

R/C,3,4,5,6,7,8

R/C

• SHELF COMPENSATION

Enter shelf compensation mode R/C, C, B, C, B, C, B

Set shelf compensations (I.E.) A,2,3,A

Return to ENTER R/C

17

ACTION DISPLAY

Turn the power switch on. If the oven is already on, press
the Read / Clear key until the following screen is
displayed.

Enter access code “1 6 2 7 3 8”.

Select “C”.

Select a number from 0-9 and press the key corresponding

to that number.

NOTE: If a product Key selected already has a program,

the screen will read.

If a product Key dose not have a program, the screen will
read.

Enter a desired cooking / baking temperature. The screen
will automatically advance to the next display.

Enter the cooking time and then press “E” to advance to
the next screen.

Enter the desired cooking curve. (Refer to sections 6.3 and

6.7 for more detail)

Select Fan speed. (Hi=1700 rpm, Low=1400)

Select Fan Pulse rate. (0 to 100%). 0=off unless calling for
heat. 100=on at all time.

NOTE:

will be on that many number of seconds in a 100-second
block. (E.g. 67%= on for 67 seconds in a 100 second
block)
If your press 1 you will go through the same sequence as
outlined above. If you press 2 the next display will
automatically appear.

Any number between 0-100 means that the fan

PROGRAMMING ECCO-PP

SELECT PRODUCT OR

READ/CLEAR TO

PROGRAM

XX:XXPM XXXF

A: SET TIME
B: SET DATE
C: PROGRAM PRODUCTS
D: NEXT MENU

PRODUCT PROGRAM MODE

SELECT PRODUCT

NUMBER 0-9

EDIT PRODUCT?

1=EDIT OR 2=DELETE

NXX TX XXXF CX

XX:XX:XX PXXX F-XX

ENTER COOKING TEMP

100 TO 450 F

NOX T1 XXXF

ENTER COOKING TIME

HR:MIN:SEC

NOX T1 XXXF CO

ENTER COOKING CURVE

0 TO 100%

NOX T1 XXXF CXX

XX:XX:XX PXXX F-XX

ENTER FAN SPEED

1=HI 2=LOW

NOX T1 XXXF CXX

XX:XX:XX PXXX F-XX

ENTER FAN PULSE RATE

1 TO 100%

NOX T1 XXXF CXX

XX:XX:XX PXX F-XX

CONTINUE TO TIER 2

1=YES 2=NO

NOX T1 XXXF CXX

XX:XX:XX PXXX F-XX

A: SET TIME
B: SET DATE
C: PROGRAM PRODUCTS
D: NEXT MENU

18

PROGRAMMING ECCO-PT

ACTION DISPLAY

Step 1. Turn the power switch on. If the oven is

already on, press the “CANCEL” key until
the following screen is displayed.

Step 2. Select:

 TIME / DATE / PROGRAM.

 RUN OVEN

 TIME / DATE / PROGRAM

TIME DATE TEMP STATUS

12:00 01/01/01 325 STANDBY

ACTION DISPLAY

 DISPLAY PRODUCT

 TIMER ONLY

Step 3. Select :

 SET TIME / DATE

 PROGRAM COMPUTER

 PROGRAM COMPUTER

TIME DATE TEMP STATUS

12:00 01/01/01 325 PROGRAM

ACTION DISPLAY

Step 4. Using the  and  arrows, enter access

code “A B C D E F”

Press  or  to scroll through letters and numbers,
then select “ENTER” to move the cursor to the right.

EXAMPLE: Press  once for an “A”, then press

“ENTER”. Press  twice for a “B”, then
select “ENTER”. Continue through “F”.
The screen will then automatically
advance once access code has been
entered correctly.

 ENTER

PRESS CANCEL TO QUIT

19

ENTER ACCESS CODE

USE  KEYS TO SELECT

THEN PRESS ENTER

PROGRAMMING ECCO-PT CONT’D

ACTION DISPLAY

Step 5. Select:

 PROGRAM PRODUCTS

ACTION DISPLAY

Step 6. Select:

 CREATE NEW PRODUCT

 PROGRAM PRODUCTS

 EDIT READY ZONE

 EDIT ACCESS CODE

 ENABLE MANUAL PRODUCT

 CONFIGURE TIME OF DAY

 CREATE NEW PRODUCT

 EDIT PRODUCT

 DELETE PRODUCT

 EDIT PRODUCT

ACTION DISPLAY

Step 7. “SELECT PRODUCT ICON” is the first

screen when creating a product program.
Press  until you find an icon that best
resembles your product. If necessary, press
 to go backward through the icon list.
Select “ENTER” to accept the icon, and more
to the next screen

SELECT PRODUCT ICON

USE  KEYS TO SELECT

THEN PRESS ENTER TO ACCEPT

APPETIZER A

 ENTER

20

PROGRAMMING ECCO-PT CONT’D

ACTION DISPLAY

Step 8. “SELECT PRODUCT NAME” is where you

spell the name using the  or  to select
each letter. Then select “ENTER” to move
the cursor to the next space and select a new
letter.

NOTE: “A
replaced with the new product name or blanks, when
the product name is shorter than “A

EXAMPLE: “APPLE” replaces only APPET

Step 9. “SELECT PRODUCT TEMPERATURE”

EXAMPLE: (320) Press

PPETIZER A” is the name that must be

PPETIZER A”.

, IZER A
must be replace by blanks. A blank can
be found before “A” or after “9” when
scrolling.

ACTION DISPLAY

Press the  or  to select a number. Then
select “ENTER” to move the cursor to the
next space and select a new number. The
screen will automatically advance after you
enter the last number.



three times for a “3”, then
select “ENTER” to advance the cursor.
Press



two times for a “2”, then select
“ENTER” to advance the cursor. Since
“0” is already displayed just select
“ENTER” to advance to the next screen.

 ACCEPT
 ENTER

TIER 1

 ACCEPT
 ENTER

ACTION DISPLAY

Step 10. “SELECT TIER COOK TIME”. Time is

entered in hours:minutes:seconds. The
maximum is 12:59:59. Select “ENTER” to
advance cursor to the place you want to
enter a number.

EXAMPLE: (45 minutes:00 seconds) Select “ENTER”

twice to advance from hours to minutes,
then press
select “ENTER” to advance the cursor.
Then press
select “ENTER” to advance the cursor.
Since “0” is the next two numbers simply
select “ENTER” again twice to advance
the cursor.



four times for a “4”, then



five times for a “5”, then

 ACCEPT
 ENTER

SELECT PRODUCT NAME

A

PPETIZER A

USE  KEYS TO SELECT

APPETIZER A

SELECT PRODUCT TEMPERATURE

100

USE  KEYS TO SELECT

APPLE

SELECT TIER COOK TIME

00:45:00

USE  KEYS TO SELECT

APPLE

TIER 1
TEMP: 320F

21

PROGRAMMING ECCO-PT CONT’D

ACTION DISPLAY

Step 11. “SELECT COOKING CURVE”. Press  or

 to select numbers, select “ENTER” to

move the cursor to the next space. Cooking
curve may be any number between 0% and
100%.

EXAMPLE: (80

the cursor one space, then press
times for a “8”. Select “ENTER to
advance the cursor. Since “0” is the next
number, select “ENTER” to advance to
the next screen.

%

) Select “ENTER” once to advance



eight

 ACCEPT
 ENTER

ACTION DISPLAY

Step 12. “SELECT FAN SPEED”. The cursor will

HIGH

automatically appear under HIGH
your default setting. Press “ENTER or
ACCEPT” to keep high fan and advance to
the next screen. If LOW
setting press the  or  to move the cursor
to low. Once low is selected, select “ENTER
or ACCEPT” to move to the next screen.

is the correct

, that is

LOW

COOKING CURVE:

 ACCEPT
 ENTER

SELECT COOKING CURVE

000 %

USE  KEYS TO SELECT

APPLE

TIER 1
TEMP: 320F TIME: 00:45:00

SELECT FAN SPEED

USE  KEYS TO SELECT

APPLE

TIER 1
TEMP: 320F TIME: 00:45:00

80 %

22

PROGRAMMING ECCO-PT CONT’D

ACTION DISPLAY

Step 13. “SELECT PULSE RATE”. Press  or  to

select numbers, select “ENTER” to move the
cursor to the next space. 100% is the
default. If this okay, select “ENTER” three
times or “ACCEPT” once to advance to the
next screen.

EXAMPLE: (80

“ENTER” once to advance the cursor one
space, then press
Select “ENTER to advance the cursor.
Since “0” is the next number, select
“ENTER” to advance to the next screen.

%

) Press the  once for “0”. Select



eight times for a “8”.

TIER 1
TEMP: 320F TIME: 00:45:00

FAN: HI

COOKING CURVE:

 ACCEPT
 ENTER

ACTION DISPLAY

Step 14. “CORRECT”. The cursor automatically

YES

appears on “YES”. The computer is asking
if the program displayed is correct. If any
part of that program is incorrect, press  or
 till the cursor is on “NO
or “ACCEPT”. This will return you to step 7.
Selecting “YES
sceen.“NO”.

” will advance the

”. Select “ENTER”

NO

TIER 1
TEMP: 320F TIME: 00:45:00

FAN: HI RATE:

COOKING CURVE:

 ACCEPT
 ENTER

SELECT PULE RATE

1

00 %

USE  KEYS TO SELECT

APPLE

USE  KEYS TO SELECT

APPLE

80 %

CORRECT?

80 %

100 %

23

PROGRAMMING ECCO-PT CONT’D

ACTION DISPLAY

Step 15. “CONTINUE TO NEXT TIER”. The cursor

automatically appears on “NO
“ENTER” or “ACCEPT” to end programming
or move the cursor with the  or  to
“YES

”. This will allow you to enter another
tier to this program. Repeat steps 6-14 to
program second tier.

”. Select

YES NO

TIER 1

COOKING CURVE:

 ACCEPT
 ENTER

ACTION DISPLAY

Step 16. After programming the last tier, select “NO”

when asked “CONTINUE TO NEXT TIER”
the computer will automatically advance the
screen to program more products. If no
other products need to be programmed,
select “CANCEL” three times to advance
screen to the boot up screen.

 CREATE NEW PRODUCT

 EDIT PRODUCT

 DELETE PRODUCT

 EDIT PRODUCT

ACTION DISPLAY

CONTINUE TO NEXT TIER

USE  KEYS TO SELECT

APPLE

TEMP: 320F TIME: 00:45:00

FAN: HI RATE:

80 %

100 %

Step 17. You may now preheat the oven for any

products you have programmed.

Step 18. Select:

 Run oven

 RUN OVEN

 TIME / DATE / PROGRAM

TIME DATE TEMP STATUS

12:00 01/01/01 325 STANDBY

24

OPERATIONS

 Convection ovens constantly circulate air over the product. This strips away the thin layer of moisture

and cool air from the top of the product. Heat penetrates more quickly. Cooking times are shortened
and cooking temperatures are usually reduced.

 To convert standard deck oven recipes to convection oven recipes, reduce the temperature 50 °F and

the time by 25%. Make adjustments as necessary, depending upon your results.

 The lower the temperature the more even the bake.

 Check the product halfway through the baking cycle. Look through the door windows. Opening the

oven door is not recommended.

 If products are brown on the outside and not done on the inside, too high a temperature is being used.

Decrease the temperature 15-25 °F.

 If products are pulling to the edge of pans or spilling, the oven is not leveled or the pans are warped.

Correct as necessary.

 Load each shelf evenly. Spaces should be maintained equally between the pan and walls. Front and

back. This will allow an even distribution of airflow.

BAKING

 Most baking should be done with the vent closed. Open the vent only with high moisture products to

avoid seepage around the front of the door.

GENERAL

 Always weigh your product. This will give you a more consistent size, color and quality.

 Center the pan in the oven. The better the air flow around the product, the better the bake.

 The convection oven is a mechanical piece of equipment. The same control settings will always give

the same results. If the results vary, problems may be because of preparation, not the oven.

LOADING

 Place product as close to oven as practical. Open oven doors and load quickly but carefully.

 If only one pan is required, load on center shelf. If two pans are required, load on second and fourth

shelf. If three pans are required, load on top shelf, bottom shelf, and center shelf. If four pans are
required, load on top shelf, bottom shelf, and middle two shelves. If five shelves are required, space
evenly in oven. (See page 27 for more detail)

UNLOADING

 It is a characteristic of all convection ovens to unload the top shelf before the bottom shelves. The

rising of heat and the hot oven ceiling causes the top shelf to bake quicker. This characteristic is more
pronounced when baking at higher temperatures and/or for prolonged periods of time.

25

GENERAL CONT’D

ONE PAN

TWO PAN

THREE PAN

FOUR PAN

FIVE PAN

26

ECCO-T

ACTION RESULT

Turn power switch to ON.

TYPICAL OPERATION

Adjust proper temperature, between 140 & 450
degrees and allow to preheat up to 20 minutes.

Open oven doors and insert product, set timer up to
60 minutes.

Timer beeps continuously when done. Product should now be done.

Oven begins heating.

Timer begins counting down.

ECCO-AP

ACTION RESULT

Turn power switch to ON. Control panel heat call light comes on.

Adjust proper temperature, between 140°F& 450°F
and allow to preheat up to 20 minutes.

Open oven doors and insert product, set timer up to
60 minutes.

Timer beeps continuously when done. Product should now be done.

Oven begins heating.

Timer begins counting down.

ECCO-SII

ACTION RESULT

Turn power switch to ON. Digital display reads “000””.

Press Temp button and use arrows to adjust to
proper Temp between 150°F & 450°F.

Beeper will sound for 3 seconds when preheated.
Open doors and insert product.

Press Time Button and use arrows to adjust to
desired time. Press Start / Stop Button.

Beeper sounds continuously Press Start / Stop
Button.

Oven begins heating and displays “pre”.

Display will read preheated temperature.

Digital display will start countdown.

27

ECCO-C

ACTION RESULT

Turn power switch to ON. Control panel comes on, display says “88888” and

Press a product button. Display says “PREHT” (Preheat), oven begins to heat

Beeper sounds briefly. Display says “READY”.

TYPICAL OPERATION CONT’D

then “ENTER”, motor starts.

to the programmed temperature.

Open the oven doors and load the product. Close the
door and press the product button again.

Press the shelf button(s) which correspond to the
shelf positions which the product is loaded (A
equals the top shelf and E equals the bottom shelf).

Beeper sounds continuously. Display shows “DONE”, shelf button(s) flash.

Press the flashing shelf button(s). Beeper stops. Display shows “READY” if no other

Open oven door and remove the product, which
corresponds to flashing shelf button(s).

ECCO-PP

ACTION RESULT

Turn power switch to ON. Control panel comes on, display says “SELECT

Press a product button. Display says “PRODUCT X PREHEATING TO

Beeper sounds briefly. Display says “READY SELECT PRODUCT TO

Beeper sounds briefly and display says “SHELF”.

Display shows a countdown timer and begins to
count toward zero.

shelves carry product or resume count down for
shelves that still have product cooking.

PRODUCT OR READ/CLEAR TO PROGRAM.

XXX F”. Motor starts and oven begins preheating

to the programmed temperature.

START ”.

Open the oven doors and load the product. Close
the door and press the product button again.

Press the shelf button(s) which correspond to the
shelf positions, which the product is loaded (A
equals the top shelf and E equals the bottom shelf).

Beeper sounds continuously. Display shows “DONE PRESS SHELF BUTTON

Press the flashing shelf button(s). Beeper stops. Display shows “READY SELECT

Open oven door and remove the product, which
corresponds to flashing shelf button(s).

Beeper sounds briefly and display says “SELECT
OVEN SHELVES PRODUCT X”.

Display shows a countdown timer and begins to
count toward zero.

X, REMOVE PRODUCT”, shelf button(s) flash.

PRODUCT TO START” if no other shelves carry

product or resume count down for shelves that still
have product cooking.

28

ECCO-PT

ACTION RESULT

Press the on switch. Control panel comes on, display says “LANG, Run

Select “Run Oven”. Display will show a list of product to choose.

Select Product button next to Icon desired. Display says “Preheating to XXXF”.

Beeper sounds briefly. Display says “Ready”.

Select Product to start. Display shows possible product selection for that

Select Product to start. Display says “Select shelf”.

Press Product button next to desired shelf. Display will show icon chosen and begin to count

Beeper sounds continuously. Display shows “ DONE” press button and remove

Oven is ready for another product.

TYPICAL OPERATION CONT’D

Oven, Time Date Program.

temperature.

down.

product from that shelf.

29

SEQUENCE OF OPERATION ECCO-T

Power switch turned on.

240/208 VAC across Common terminals on power switch and “B” terminal of 12 pin
Terminal block.
240/208 VAC to Common terminals of Motor relay.

240/24-volt transformer energized.

24 VAC across “C” and “D” (common) of 12 pin Terminal block.
24 VAC across coil of Motor relay. (Through door switch)
24 VAC across “D” and of Heat contactor. (Through door switch and high limit
thermostat)
Motor contactor closes.

Motor starts.

Thermostat Turned On

24 VAC across coil of Heat contactor.
Heat contactor closes.

208/240 volts to elements.
Oven heats.

SEQUENCE OF OPERATION ECCO-AP

Power switch turned on.

240/208 VAC across Common terminals on power switch and “B” terminal of 12 pin
Terminal block.
240/208 VAC to Common terminals of Motor relay.

240/24-volt transformer energized.

24 VAC across “C” and “D” (common) of 24 pin Terminal block.
24 VAC across coil of Motor relay. (Through door switch)
24 VAC across “D” and of Heat contactor. (Through door switch and high limit
thermostat)
24 VAC across “D” and Heat output on board.
Motor contactor closes.

Motor starts.

24 VAC across coil of Heat contactor.
Heat contactor closes.

208/240 volts to elements.
Oven heats.

30

SEQUENCE OF OPERATION ECCO-SII

Power switch turned on.

240/208 VAC across Common terminals on power switch and “B” terminal of 12 pin
Terminal block (through fuses).
240/208 VAC to Common terminals of Motor relay.

240/24-volt transformer energized.

24 VAC across “C” and “D” (common) of 24 pin Terminal block.
24 VAC across pins 1 & 2 on circuit board.
24VAC across Motor output on circuit board and “D”.
24 VAC across coil of Motor relay (through door switch).
Motor relay closes.

Motor starts.

24 VAC across Heat output on circuit board and “D”.
24 VAC across coil of Heat contactor (through over temperature thermostat).
Heat contactor closes.
208/240 volts to elements.
Oven heats.

31

SEQUENCE OF OPERATION ECCO-C

Power switch turned on.

240/208 VAC across Common terminals on power switch and “A” terminal of 24 pin.
Terminal block.

240/208 VAC across any “A” and “B” terminal of 24 pin Terminal block.
240/208 VAC to Common terminals of Motor relay.
240/208 VAC across common terminals of Back-up toggle switch.
120 VAC to coil of Back-up relay.

240/24 volt transformer energized.

24 VAC across “C” and “D” (common) of 24 pin Terminal block.
24 VAC across “D” and coil of Motor relay.(Through door switch)
24 VAC across “D” and of Heat contactor. (Through door switch and high limit
thermostat)
24 VAC across “D” and Common terminals of Back-up relay.
240/12 volt transformer energized.

Back-up toggle switch Off.

24 VAC across “D” and TP4, TP5 and TP6.
12 volts to TP1 on microprocessor.
24 VAC across coil of motor contactor.
Motor contactor closes.
240/208 VAC across NO (Normally open) contacts of Motor relay.

Motor starts.

24 VAC across coil of Heat contactor.
Heat contactor closes.

208/240 volts to elements.
Oven heats.

Back-up toggle switch Off.

208/240 VAC across coil of Back-up relay.

Back-up relay closes.

24 VAC across and Back-up Thermostat (With door switch energized.)
24 VAC across coil of Motor relay.
Motor contactor closes.
240/208 VAC across NO (Normally open) contacts of Motor relay.

Motor starts.

Temperature set on back up thermostat.
24 VAC across “D” and each terminal of back-up thermostat.
24 VAC across coil of Heat contactor.
Heat contactor closes.
208/240 volts to elements.

32

SEQUENCE OF OPERATION ECCO-PP/PT

Oven plugged in.

208/240 VAC across any “A” and “B” terminal on the terminal block.
208/240 VAC to Control transformer (208-240VAC / 24-12 VAC) and Component
transformer 240VAC / 24VAC.

Transformers energize.

24 VAC to any “C” and “D” terminal on the terminal block.
24 / 12 VAC to Circuit Board (JP40).
24 VAC to Circuit Board outputs (JP11- JP13).

Power Switched turned to “ON”.

Display comes on.

Product selected.

24 VAC across motor output (JP12) and “D”.
24 VAC across motor HI relay coil.
Motor relay closes.
208/240 VAC to motor.

Motor Starts.

24 VAC across heat output (JP11) and “D”.
24 VAC across heat contactor (through over-temperature thermostat).
Heat contactor closes.
208/240 VAC to elements.

Back up toggle switch to “ON” .

208/240 VAC across coil of back up relay coil.

Back up relay energizes.

24 VAC to motor relay.
Motor relay energizes.
208/240 VAC to motor.

Motor Starts.

24 VAC to thermostat.

Temperature set on thermostat.

24 VAC to heat contactor.
Contactor energizes.
208/240 VAC to elements.

33

HINT: Confirm that all Circuit Breakers are in the “ON” position.

NO MOTOR

PROBABLE CAUSE CORRECTIVE ACTION

TROUBLESHOOTING ECCO-T

Defective Fan Switch

Defective Fuses

Defective Transformer

Defective Motor Relay

Defective Door Switch

Defective Motor

NO HEAT

PROBABLE CAUSE CORRECTIVE ACTION

Defective Elements

Defective Transformer

Defective Heat Contactor

 Verify that Fan switch is in “ON” position (In pulse position motor

will only cycle when oven calls for heat).

 Check fuses for normal operation.

 Check transformer for normal operation. (See Technical Data for

correct ratings)

 Check motor relay for normal operation. (24VAC 35 Ω)

 Check door switch for normal operation.

 Check motor for normal operation. (See Technical Data for correct

ratings)

 Check that elements are getting power.
 Confirm that Elements are working correctly. (See Technical Data for

amperage)

 Check transformer for normal operation. (See Technical Data for

correct ratings)

 Replace if necessary.

 Confirm that Contactor is getting correct voltage.
 Confirm that Contactor is operating properly. (24VAC 6Ω)

Defective Thermostat

 Confirm that Thermostat is getting 24 VAC. Measure between

Thermostat terminal and “D” on the terminal block

If voltage is not present:

 Check Transformer for normal operation.

If voltage is present:

 Check thermostat for continuity.
 Replace as necessary.

34

HINT: Confirm that all Circuit Breakers are in the “ON” position.

NO MOTOR

PROBABLE CAUSE CORRECTIVE ACTION

TROUBLESHOOTING ECCO-AP

Defective Fan Switch

Defective Fuses

Defective Transformer

Defective Motor Relay

Defective Door Switch

Defective Motor

NO HEAT

PROBABLE CAUSE CORRECTIVE ACTION

Defective Elements

Defective Transformer

 Verify that Fan switch is in “ON” position (In pulse position motor

will only cycle when oven calls for heat).

 Check fuses for normal operation.

 Check transformer for normal operation.

 Check motor relay for normal operation. (24VAC 35 Ω)

 Check door switch for normal operation.

 Check motor for normal operation. (See Technical Data for correct

ratings)

 Check that elements are getting power.
 Confirm that Elements are working correctly. (See Technical Data for

correct ratings)

 Check transformer for normal operation. (See Technical Data for

correct ratings)

 Replace if necessary.

Defective Probe

Defective Heat Contactor

Defective Circuit board

 Confirm that probe has proper resistance for the correct temp. (See

Technical Data for correct ratings)

 Confirm that Contactor is getting correct voltage.

 Confirm that Contactor is operating properly. (24VAC 6Ω)

 Confirm that Heat Call light is on.

If no light is detected:

 Check 12-position switch for normal operation. (See Technical Data

for correct ratings)

If light is detected:
 Check for 24VAC across heat output and “D” on 12 Pole terminal.

If voltage is not present:
 Replace Circuit board.

If voltage is present:

 Check over temperature thermostat for proper operation.

 Check door switch for normal operation.

35

TROUBLESHOOTING ECCO-SII

HINT: Confirm that all Circuit Breakers are in the “ON” position.

NO MOTOR

PROBABLE CAUSE CORRECTIVE ACTION

Defective Fan Switch

Defective Fuses

Defective Transformer

Defective Circuit board

NO HEAT

PROBABLE CAUSE CORRECTIVE ACTION

Defective Elements

 Verify that Fan switch is in “ON” position (In pulse position motor

will only cycle when oven calls for heat).

 Check Fuses for normal operation.

 Check Transformer for normal operation. (See Technical Data for

correct ratings)

 Check for 24 VAC across Motor output on board and “D” on 12-

position terminal block.

If no voltage is present:

 Confirm that voltage is coming in from transformer.
 Replace circuit board.

If voltage is present:

 Check motor relay for normal operation. (24 VAC 35Ω)
 Check door switch for normal.
 Check motor for normal operation. (See Technical Data for correct

ratings)

 Check that elements are getting power.
 Confirm that Elements are working correctly. (See Technical Data for

correct ratings)

Defective Transformer

Defective Probe

Defective Heat Contactor

 Check transformer for normal operation.
 Replace if necessary.

 Confirm that probe has proper resistance for the correct temp. (See

Technical Data for correct ratings)

 Confirm that Contactor is getting correct voltage.
 Confirm that Contactor is operating properly. (24VAC 6Ω)

36

TROUBLESHOOTING ECCO-SII CONT’D

PROBABLE CAUSE CORRECTIVE ACTION

Defective Circuit board

 Confirm that Heat Call light is on.

If no light is detected:

 Check 12-position switch for normal operation. (See Technical Data

for correct ratings)

If light is detected:

 Check for 24VAC across heat output and “D” on 12 Pole terminal.

If voltage is not present:

 Replace Circuit board.

If voltage is present:

 Check over temperature thermostat for proper operation.
 Check door switch for normal operation.

37

TROUBLESHOOTING ECCO-C

 To help troubleshoot the oven you should perform the following “Manual Override” test:
 Open drop down door located on the lower right side, directly below front panel.
 Turn back up toggle (on/off) switch to “on” position.
 Turn main power switch to “on” position.
 Check oven for normal operation.

NO DISPLAY

PROBABLE CAUSE CORRECTIVE ACTION

Power switch is not turned on  Turn power switch on.

Defective power switch  Check power switch for normal operation. Replace as necessary.

Defective back-up relay  Check relay for normal operation.

 Check coil for 24 VAC.

If 24 VAC is measured. Turn oven off and:

 Check coil for 7.2 KΩ.
 Replace as necessary.

If 24 VAC is not measured.

 Verify that manual override switch is in “off” position.
 Check manual override switch for normal operation.
 Check wires for any shorts.

Defective control transformer
(12 VAC).

Defective rectifier  Check for no less than 10.5 VAC on TP1 and 5 VDC on TP2.

 Check transformer for normal operation.
 Check primary coil for 208/240 VAC and 630 Ω. Check secondary

coil for no less than 10.5 VAC and 1 Ω.

If voltage is not measured on primary:

 Check wires for any shorts.
 Check Power switch for normal operation.

If voltage is measured on primary:

 Check for voltage on secondary.
 Replace transformer.

 If correct voltage is present at TP1 and present, but low at TP2

unplug both ribbon connections from CPU and re-measure at TP2.

 If voltage remains low at TP2 replace CPU.
 If voltage at TP2 increased to 5 VDC when ribbon was unplugged,

plug ribbon back in to CPU and disconnect from Interface board.

 Re-measure at TP2.
 If voltage dropped to below 5 VDC replace ribbon cable.
 If voltage remains at 5 VDC, plug ribbon back into Interface board

and measure for 5 VDC at TP3.

 If voltage is present at TP3 and display is still not on, press and hold

the R/C button on board if LED’s come on replace Interface board.

 If LED segment does not illuminate or the LED is blank, replace

LED.

At this point you should have a display.

38

NO FAN-Manual Mode

PROBABLE CAUSE CORRECTIVE ACTION

TROUBLESHOOTING ECCO-C CONT’D

Defective 208-240/24 VAC
transformer

Back-up relay not energizing If 240 VAC is measured: Turn unit off and:

Motor contactor not energized If 24 VAC is not measured: Turn oven off and:

 Check for 24 VAC on “C” and “D” of the terminal block.

If 24 VAC is not measured: Turn off and:

 Check secondary coil for 1 Ω.
 Check primary coil for 77 Ω.
 Replace transformer.

If 24 VAC is measured: Turn off and:

 Check back-up relay for normal operation.
 Check for 240 VAC on relay coil.

 Check back-up relay coil for 7.2 K Ω.
 Replace if defective.

If 240 VAC is not measured:

 Check back-up switch (SPDT) for normal operation.
 Replace if defective.
 Check for 24 VAC at contactor or relay coil.

 Check door switch for normal operation.
 Replace or adjust door switch.

If 24 VAC is measured: Turn unit off and:

 Check contactor coil for continuity.
 Replace if defective.

No voltage across contactor
points

 Check 208/240 VAC across “C” terminals of contactor.

If 208/240 VAC is not measured:

 Check connection to main contactor (heat contactor).
 Check circuit breaker.

If 208/240 VAC is measured:

 Check across “NO” contacts. Should have 208/240 VAC.
 Replace if defective.

39

TROUBLESHOOTING ECCO-C CONT’D

NO MOTOR Computer Mode

PROBABLE CAUSE CORRECTIVE ACTION

No 24 VAC on Interface board  Check for 24 VAC at TP4 to common (“D”).

If 24 VAC is not measured:

 Check for 24 VAC at “NC” contacts on back-up relay.

If 24 VAC is measured:

 Check for 24 VAC at TP5.
 Replace Interface board if defective.

NO HEAT Manual Mode

NOTE: Fan must be operating before trouble shooting No heat.

PROBABLE CAUSE CORRECTIVE ACTION

Back-up relay not energizing  Check for 240 VAC on relay coil.

If 240 VAC is measured. Turn unit off and:

 Check back-up relay coil for 7.2 Ω.
 Check “NO” contacts for 24 VAC.
 Replace if defective.

If 240 VAC is not measured:

 Check back-up switch (SPDT) for normal operation.
 Replace if defective.

Defective thermostat  Turn unit off and check for continuity while cycling thermostat on

and off.

 Replace if defective.

Defective contactor  Check for 24 VAC at heater coil.

If 24 VAC is measured. Turn oven off and:

 Check for continuity through coil.
 Replace if defective.

If 24 VAC is not measured. Turn oven off and:

 Check for continuity through hi-temp wires going to over-temp

thermostat.

 Replace over-temp thermostat if defective.

Defective elements  Check elements for continuity.

 Replace if defective.

Defective over-temp thermostat  Check for 24 VAC on #55 red wire to common “D”.

If 24 VAC is not measured: Turn oven off and:

 Check for continuity through over-temp thermostat.
 Replace if defective.

40

NO HEAT Computer Mode

PROBABLE CAUSE CORRECTIVE ACTION

No 24 VAC on Interface board  Check for 24 VAC at TP4 to ground.

DISPLAY LOCKS UP

PROBABLE CAUSE CORRECTIVE ACTION

“Help” in display  Check probe for proper resistance.

TROUBLESHOOTING ECCO-C CONT’D

If 24 VAC is not measured:

 Check for 24 VAC at “NC” contacts on back-up relay.

If 24 VAC is measured:

 Check for 24 VAC at TP6.
 Replace Interface board if defective.

 Check that probe connections are secure.
 Push “TEMP” button on control board and check to see if temperature

rapidly descends. If temp does descend rapidly, replace ribbon cable.

 Check to see that contactors/relays are not stuck in the closed

position.

 Replace contactor if defective.
 Check for foreign objects keeping contactor closed.

“88888” stuck in display  Check for stuck button by pressing any button.

If computer beeps or chirps:

 Check control panel transformer (12 VAC) for proper operation.
 Check TP1 for at least 10.5 VAC.
 Check TP2 for at least 4.99 VDC.
 Check TP3 for at least 4.97 VDC.

If computer does not beep or chirp:

 Check each button for movement.
 Check that panel label has not been damaged in any way.
 Replace button if defective.
 Replace panel label.

Display has shelf “A”  Read Programming Codes.

41

TROUBLESHOOTING ECCO-PP, ECCO-PT

 To help troubleshoot the oven you should perform the following “Manual Override” test:

 Open drop down door located on the lower right side, directly below front panel.

 Turn back up toggle (on/off) switch to “on” position.

 Turn main power switch to “on” position.

 Check oven for normal operation.

NO DISPLAY

PROBABLE CAUSE CORRECTIVE ACTION

Defective Power Switch (-PP
only)

Defective Power Switch
output on circuit board
(JP37)

Defective Control
Transformer

Defective Display

 Confirm that toggle switch is getting correct voltage.

 Check power switch for normal operation.

 Confirm that JP37 has 5VDC in the off position and nominal voltage

in the on position.

 If JP37 has a constant 5VDC check toggle switch for normal

operation.

 Confirm that 208/240VAC is feeding primary coil.

 Confirm that 24VAC and 12VAC is at JP40 (24VAC across solid

yellow wires and 12VAC from one solid yellow wire to yellow with
red stripe).

 Check ribbon cable connections.

 Confirm that voltage is present at JP40.

If no voltage is present:

 Replace control transformer.

If voltage is present:

 Confirm that CPU has 5VDC at TP1 (this means that the CPU is

getting correct voltage).

 Confirm that CPU has 12VDC at TP2 (this means that the CPU is

sending out the correct voltage).

If no voltage is present:

 Replace CPU.

If voltage is present:

 Replace display.

IMPORTANT NOTICE: Power must be disconnected at source when disconnecting any ribbon cable or any
connector from CPU or Display. Failure to do so will result in damage to the Display board and CPU.

42

TROUBLESHOOTING ECCO-PP, ECCO-PT CONT’D

NO MOTOR, MANUAL MODE

PROBABLE CAUSE CORRECTIVE ACTION

Defective back-up toggle
switch

Defective back-up relay

Defective component
transformer

Defective motor relay

Defective motor

 Confirm that toggle switch is in the “ON” position.

 Check toggle switch for normal operation.

 Check for 208/240VAC at relay coil.

If no voltage is present:

 Confirm that points are making.

If voltage is present:

 Replace relay.

 Confirm that 208/240VAC is feeding primary coil.

 Confirm that 24VAC is at secondary coil.

 Check for 24VAC at relay coil.

If no voltage is present:

 Confirm that points are making.

If voltage is present:

 Replace relay.

 Check for 208/240VAC across P1 and T7/T4.

If no voltage is present:

 Confirm that wires have continuity.

If voltage is present:

 Replace motor.

NO MOTOR, COMPUTER MODE

IMPORTANT NOTICE: Before trying to trouble shoot “No Motor in Computer Mode” confirm that motor is

operational in “Manual Mode”.

PROBABLE CAUSE CORRECTIVE ACTION

Defective output on CPU
board

 Check for 24VAC at JP12 for high or JP13 for low (while oven is

calling for heat).

If no voltage is present:

 Board is operating correctly.

If voltage is present:

 Replace CPU.

43

TROUBLESHOOTING ECCO-PP, ECCO-PT CONT’D

NO HEAT, MANUAL MODE

PROBABLE CAUSE CORRECTIVE ACTION

Defective back-up toggle
switch

Defective back-up relay

Defective component
transformer

Defective Thermostat

Defective heat contactor

 Confirm that toggle switch is in the “ON” position.

 Check toggle switch for normal operation.

 Check for 208/240VAC at relay coil.

If no voltage is present:

 Confirm that points are making.

If voltage is present:

 Replace relay.

 Confirm that 208/240VAC is feeding primary coil.

 Confirm that 24VAC is at secondary coil.

 Confirm that thermostat has 24VAC.

If no voltage is present

 Check component transformer and wiring for normal operation.

If voltage is present

 Check thermostat for normal operation. Replace as necessary.

 Check for 24VAC at relay coil.

If no voltage is present:

 Confirm that points are making.

Defective elements

If voltage is present:

 Replace contactor.

 Check for 208/240VAC across elements.

If no voltage is present:

 Confirm that wires have continuity.

If voltage is present:

 Replace elements.

44

TROUBLESHOOTING ECCO-PP, ECCO-PT CONT’D

NO HEAT, COMPUTER MODE

IMPORTANT NOTICE: Before trying to trouble shoot “No Heat in Computer Mode” confirm that the oven heats in

“Manual Mode”.

PROBABLE CAUSE CORRECTIVE ACTION

Defective output on CPU
board

ANOMALIES

PROBABLE CAUSE CORRECTIVE ACTION

Display will intermittently
blank out

Intermittently over heats or
under cooks

 Check for 24VAC at JP11 (while oven is calling for heat).

If no voltage is present:

 Board is operating correctly.

If voltage is present:

 Replace CPU.

 Check ribbon cable for good connections

 Check panel label buttons and confirm that none of the domes are

collapsed.

If domes are collapsed:

 Replace panel label.

 Check probe for proper resistance.

 Check ribbon connection for good connection.

 Check probe for good connection.

45

ELEMENT RESISTANCE

TECHNICAL DATA

 208 Volt

 480 Volt

16 Ω

60 Ω

TRANSFORMER RESISTANCE

TRANSFORMER Input Primary Secondary Output

 208/24 Volt 208/240 Volt

 240/12 Volt 208/240 Volt

 208/240-24/12 208/240 Volt 208Volts

77 Ω 1Ω

630 Ω 1 Ω

240Volts

64 Ω

75 Ω

12Volts

.6 Ω

24Volts

1 Ω

24 Volt

12 Volt

24/12 Volts

CONTACTOR RESISTANCE

CONTACTOR Coil

 3 Pole 24 Volt coil

 2 Pole 24 Volt coil (P & B) (PP & PT motor)

6 Ω

35 Ω

RELAY RESISTANCE

RELAY Coil

 240 VAC

7.2 KΩ

OVER-TEMP THERMOSTAT

OVER-TEMP

 Wires Normally closed

DOOR SWITCH

 Check switch between “COM” (common) and “NO” (normally open) contacts, insure switch closes approximately 3 to 4

inches before door closes.

BLOWER FAN

 Blower fan will rotate clockwise and should have a 5/8“ gap between it and the back wall of the can.

46

TECHNICAL DATA CONT’D

AUTO/BYPASS SWITCH

The Auto / Bypass and Energy switch are located below the controls behind a pull down access panel.

• Auto/Bypass switch

• Energy switch

Normally in “OFF”
power to the computer and allow use of the back-up
thermostat.

Normally in “HIGH”
PROVIDE 8.25 kW heat. Not provided on Steam
convection ovens.

. The “ON” position will interrupt

for 11 kW heats. “LOW” WILL

LINE AMPERAGE, WATTAGE, AND PROPER PHASING

NORMAL AMPS PER LINE

MODEL

NUMBER

ECCO 11.66 37.0 37.0 22.9 28.9 28.9 26.5 16.5 16.5 10.2

2ECCO 23.33 60.0 74.2 60.0 55.3 57.7 55.3 26.0 33.0 26.0 112.0 97.2

TOTAL K.W.

CONNECTION

208 VOLT 240 VOLT 480 VOLT 208 V 240V

L1 L2 L3 L1 L2 L3 L1 L2 L3

FRONT WIRE CONNECTIONS

LINE 1 LINE 2 LINE 3 LINE 1 LINE 2

1st OVEN

2nd OVEN

1,4 2 3 1,3 2,4

1,4,7 2,5,8 3,6 1,3,5,7 2,4,6,8

THREE PHASE

SERVICE CONNECTIONS

3 PHASE 1 PHASE

SINGLE

PHASE

56.0 48.6

REAR CONNECTION WIRE NUMBERS

1st OVEN

2nd OVEN

5,8 6 7 5,7 6,8

7 5,8 6 5,7,5,7 6,8,6,8

ECCO–PT / PP COOKING CURVE CONVERSION

Old Style Purple New Style Platinum / Purple Plus

0 0%
1 17%
2 26%
3 40%
4 50%
5 56%
6 63%
7 71%

47

TECHNICAL DATA CONT’D

PROBE RESISTANCE

TEMP RESISTANCE VOLT DROP TEMP RESISTANCE VOLT DROP

70° 556 Ω

80° 569 Ω

90° 583 Ω

100° 596 Ω

110° 610 Ω

120° 623 Ω

130° 637 Ω

140° 651 Ω

150° 665 Ω

160° 678 Ω

170° 694 Ω

180° 709 Ω

190° 724 Ω

200° 739 Ω

210° 754 Ω

220° 769 Ω

1.11

1.14

1.17

1.19

1.22

1.25

1.27

1.3

1.33

1.36

1.39

1.42

1.45

1.48

1.51

1.54

290° 881 Ω

300° 897 Ω

310° 914 Ω

320° 931 Ω

330° 948 Ω

340° 965 Ω

350° 983 Ω

360° 1000 Ω

370° 1018 Ω

380° 1036 Ω

390° 1054 Ω

400° 1072 Ω

410° 1090 Ω

420° 1109 Ω

430° 1127 Ω

440° 1146 Ω

1.76

1.79

1.83

1.86

1.90

1.93

1.97

2.00

2.04

2.07

2.11

2.14

2.18

2.22

2.25

2.29

230° 785 Ω

240° 800 Ω

250° 816 Ω

260° 832 Ω

270° 848 Ω

280° 864 Ω

Probe is factory checked at 350 °F. Must be completely disconnected from circuit board when measuring

probe resistance. Display will read “HELP” if probe is open or unplugged. Any probe resistance can be

multiplied by 2 milli-amps (.002) to determine voltage drop.

1.57

1.60

1.63

1.66

1.70

1.73

450° 1165 Ω

460° 1184 Ω

470° 1204 Ω

480° 1223 Ω

490° 1243 Ω

500° 1263 Ω

NOTE

48

2.33

2.37

2.41

2.45

2.49

2.53

TECHNICAL DATA CONT’D

ECCO-C MODEL STRAPPING

The Front Control panel of the Lang “Purple” computer must be configured to match the model of oven it is being installed
in. To configure the front control panel, you must change the arrangement of the Strapping Bars located at the bottom of
the circuit board just above the ribbon connection. Each model has its own strapping configuration, which must
service technician. Follow the diagram below for the proper strapping configuration.

be set by the

POWER SWITCH

BACK OF CIRCUIT

BOARD

ECCO-C

ECCO-STM

GCCO-C

GCCO-STM

8-PIN CONNECTOR

PROBE CONNECTION

RIBBON CONNECTOR

EHS-C

GHS-C

49

ECCO-C TEST POINT LAYOUT

TECHNICAL DATA CONT’D

TP 1

TP5

TP7

50

ECCO-PP / PT TEST POINT LAYOUT

MOTOR HIGH

MOTOR LOW

STEAM

ECCO / GCCO LIGHTS

POWER

GREEN

GREEN

GREEN

GREEN

RED

ORANGE

GREEN

GREEN

BLUE

GREEN

POWER

TECHNICAL DATA CONT’D

YELLOW

YELLOW / RED

YELLOW

YELLOW

PURPLE PLUS

YELLOW

POWER SWITCH

YELLOW

ECCO / GCCO
PURPLE PLUS

YELLOW

POWER SWITCH

YELLOW

DOOR SWITCH

YELLOW

BROWN

BROWN

51

WIRING DIAGRAM ECCO-T 208/240

52

WIRING DIAGRAM ECCO-T 480

53

WIRING DIAGRAM ECCO-AP 208/240

54

WIRING DIAGRAM ECCO-AP 480

55

WIRING DIAGRAM ECCO-SII 208/240

56

WIRING DIAGRAM ECCO-SII 480

57

WIRING DIAGRAM ECCO-C 208/240

58

WIRING DIAGRAM ECCO-C 480

59

WIRING DIAGRAM ECCO-PP 208/240

60

WIRING DIAGRAM ECCO-PP 480

61

WIRING DIAGRAM ECCO-PT 208/240

62

WIRING DIAGRAM ECCO-PT 480

63

PARTS LIST ECCO-T

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 Watts 11090-18
Element ECCO Oven 380 Volt 11000 Watts 11090-30
Motor 1/3 HP 480 Volt (Before F-90435) 30200-03
Motor 1/3 HP 115/208/240 Volt (Before F-90435) 30200-12
Motor 1/3 HP 480 Volt 2 Speed (After H-90436) 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed (After H-90436) 30200-17
Switch Micro Convection Oven Door 30301-02
Switch Toggle On-Off 30303-06
Switch Toggle Spring Return 30303-16
Thermostat Safety 490°F Open
Thermostat 450°F Oven
Terminal Strip 3-Pole 30501-02
Contactor 3 Pole 24 VAC 30700-06
Contactor 2 Pole 24 VAC 30701-04
Contactor 2 Pole 30 Amp 24 VAC 30701-05
Contactor 2 Speed Motor 24 VAC (480 VAC only) 30705-03
Timer Electric 1 Hour 24V (After H-90436) 30800-05
Timer Mechanical Long Ring (Before F-90435) 30801-01
Buzzer Electric Timer 24V (After H-90436) 30802-04
Fuse 15 AMP 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Transformer 120-208-240/24 VAC 31400-07
Transformer 480/24 VAC 31400-15
Transformer 380/24 VAC 31400-18
Pilot Light 28 VAC 31601-07
Lamp Socket 31602-04
Lamp Incandescent 250 Volt Clear 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3-Pole 31800-04
Rack 50200-20
Rack Slide (Before H-36961) 50200-36
Rack Slide (After H-36961) 50200-93
Rack Extra Deep 50200-31
Rack Slide Extra Deep (Before _-38832) 50200-33
Rack Slide Extra Deep (After _-38832) 50200-94
Turnbuckle Assembly 50312-02
Door Left Hand 51100-45
Door Right Hand 51100-46
Panel Label (Before F-90435) 60301-91
Panel Label (After H-90436) 60301-101
Handle Assembly, Single Handle Oven 70603-15
Knob Damper Black 70701-25
Knob Time Control (Before F-90435) 70701-27
Knob Temperature/Time Control 70701-28
Window Assembly, Oven Door 71301-04
Blower Wheel 71500-05

30401-09
30402-27

64

PARTS LIST ECCO-AP

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 11090-18
Motor 1/3 HP 480 Volt 2 Speed 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed 30200-17
Micro Switch, Oven Door 30301-02
Switch, Toggle, On-On 30303-06
Switch, Toggle, Spring Return 30303-16
Switch, Temperature Control 12 Position 140-450°F
Thermostat Safety 490°F Open
Contactor 3 Pole 24 VAC 30700-06
Contactor 2 Pole 30 Amp 24 VAC 30701-05
Contactor 2 Speed Motor 24 VAC (480V Only, before H-90435) 30705-02
Contactor 2 Speed Motor 24 VAC (480V Only, After H-90436) 30705-03
Timer Electric 1 Hour 24V 30800-05
Buzzer Electric Timer 24V 30802-04
Fuse 15 Amp 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Transformer 120-208-240/24 VAC 31400-07
Transformer 480/24 VAC 31400-15
Pilot Light 28 VAC 31601-07
Lamp Socket 31602-04
Lamp 250 Volt 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3 Pole 31800-04
Circuit Board Temperature Control 40101-19
Probe Temperature Sensor 41100-08
Turn Buckle Assembly 50312-02
Door Left Hand 51100-45
Door Right Hand 51100-46
Panel Label Accu-Plus 60301-100
Handle Assembly Single-handle Oven 70603-15
Knob Damper Black 70701-25
Knob Temperature / Timer Control 70701-28
Window Assembly 71301-04
Blower Wheel 71500-05
Rack 50200-20
Rack Slide (Before B-36357) 50200-36
Rack Slide (After B-36357) 50200-93
Extra Deep Rack 50200-31
Extra Deep Rack Slide (Before _-38832) 50200-33
Extra Deep Rack Slide (After _-38832 50200-94

30304-16
30401-09

65

PARTS LIST ECCO-SII

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 Watts 11090-18
Motor 1/3 HP 480 Volt (Before F-79818 no pulse fan, Before H-90435 with pulse fan) 30200-03
Motor 1/3 HP 115/208/240 Volt (Before F-79818 no pulse fan, Before H-90435 with pulse fan) 30200-12
Motor 1/3 HP 480 Volt 2 Speed (After F-79819 no pulse fan, After H-90436 with pulse fan) 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed (After F-79819 no pulse fan, After H-90436 with pulse fan) 30200-17
Switch Micro Convection Oven Door 30301-02
Switch Toggle On-Off 30303-06
Switch Toggle Spring Return 30303-16
Thermostat Safety 490°F Open
Terminal Strip 3-Pole 30501-02
Contactor 3 Pole 24 VAC 30700-06
Contactor 2 Pole 24 VAC (Before H-90435) 30701-04
Contactor 2 Pole 30 Amp 24 VAC (After H-90436) 30701-05
Contactor 2 Speed Motor 24 VAC (480V Only, before H-90435) 30705-02
Contactor 2 Speed Motor 24 VAC (480V Only, After H-90436) 30705-03
Fuse 15 AMP 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Transformer 120-208-240/24 VAC 31400-07
Transformer 480/24 VAC 31400-15
Pilot Light 28 VAC 31601-07
Lamp Socket 31602-04
Lamp Incandescent 250 Volt Clear 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3-Pole 31800-04
Circuit Board Temperature Control 40101-17
Circuit Board Assembly Buzzer 40102-10
Probe Temperature Sensor 41100-08
Turnbuckle Assembly 50312-02
Door Left Hand 51100-45
Door Right Hand 51100-46
Panel Label (Before H-90435) 60301-58
Panel Label 2 Speed Motor (Before H-90435) 60301-73
Panel Label (After H-90436) 60301-102
Handle Assembly, Single Handle Oven 70603-15
Knob Damper Black 70701-25
Window Assembly, Oven Door 71301-04
Blower Wheel 71500-05
Bezel Control Board (Before H-90435) 72603-01
Bezel Fiber Spacer (Before H-90435) 20501-01
Bezel Screw, Short Qty. 1 (Before H-90435) 20102-19
Bezel Screw, Long Qty. 4 (Before H-90435) 20102-20
Bezel Washer (Before H-90435) 20201-13
Rack 50200-20
Rack Slide (Before H-37462) 50200-36
Rack Slide (After H-37462) 50200-93
Rack Extra Deep 50200-31
Rack Slide Extra Deep (Before _-38832) 50200-33
Rack Slide Extra Deep (After _-38832) 50200-94

30401-09

66

PARTS LIST ECCO-C

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 Watts 11090-18
Motor 1/3 HP 480 Volt 30200-03
Motor 1/3 HP 115/208/240 Volt 30200-12
Motor 1/3 HP 480 Volt 2 Speed (After Serial V-90436) 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed (After Serial V-90436) 30200-17
Switch Micro Convection Oven Door 30301-02
Switch Toggle On-Off 30303-06
Switch Toggle Spring Return 30303-16
Thermostat Safety 490°F Open
Thermostat 450°F Oven
Terminal Block 24 Position Quick Disconnect 30503-01
Relay 240 VAC 30600-02
Contactor 3 Pole 24 VAC 30700-06
Contactor 2 Pole 208/240 VAC 30701-03
Contactor 2 Pole 30 Amp 24 VAC (After Serial V-90436) 30701-05
Fuse 15 AMP 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Cable Ribbon Assembly 31110-01
Transformer 480/240 VAC 31400-04
Transformer 120-208240/24 VAC 31400-07
Transformer 240/12 VAC 31400-26
Lamp Socket 31602-04
Lamp Incandescent 250 Volt Clear 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3-Pole 31800-04
Circuit Board Assembly Buzzer 40102-10
Circuit Board Front Panel 40102-20
Circuit Board Front Panel Mrs. Fields 40102-21
Circuit Board Microprocessor 40102-44
Circuit Board Upgrade Kit (Only for units before G-71021) 60101-53
Snubber Low Voltage On Coil, 3-Pole Contactor 40705-02
Snubber Hi Voltage Contactor Circuit Feed 208/240V 40705-04
Snubber Hi Voltage Across Poles, 3-Pole Contact 208/240V 40705-05
Snubber Hi Voltage On Coil, 2-Pole Contactor 480V 40705-06
Snubber Hi Voltage Across Pole, 3-Pole Contactor 480V 40705-07
Snubber Low Voltage 24 Pole Terminal Block 480V 40705-08
Snubber Hi Voltage 24 Pole Terminal Block 480V 40705-09
Suppressor Low Voltage 24 Pole Terminal Block 40705-10
Suppressor Hi Voltage 24 Pole Terminal Block 40705-11
Probe Temperature Sensor 41100-08
Door Handle 11 1/2” Long Black “T” Style (Double Handle Ovens) 50800-12
Door Handle Bracket – Chrome (Single Handle Ovens) 50800-49-1
Door Handle Screw (Single Handle Ovens) OBSOLETE
Door Handle Washer (Single Handle Ovens) 20104-50
Turnbuckle Assembly (Single Handle Ovens) 50312-02
Door Left Hand (Single Handle Ovens) 51100-45
Door Right Hand (Single Handle Ovens) 51100-46
Panel Label, Purple 60301-42
Panel Label Mrs. Fields 60301-93

30401-09
30402-27

67

PARTS LIST ECCO-C

DESCRIPTION PART NO.

Valve Manual Main Water Supply (Steam Units) 70400-02
Valve Manual Water Supply (Steam Units) 70402-08
Valve Solenoid 24/60V Water Supply (Steam Units) 70403-01
Regulator Water Supply (Steam Units) 70404-01
Handle Assembly, Single Handle Oven 70603-15
Knob Thermostat 450°F Oven (not used before D-57000)
Knob Damper Black (not used before D-57000) 70701-25
Window Assembly, Oven Door 71301-04
Blower Wheel 71500-05
Blower Wheel (Steam Units) 51100-57
Orifice Water/Steam #60 DRL (Steam Units) 80405-01

70701-19

68

PARTS LIST ECCO-PP

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 Watts 11090-18
Motor 1/3 HP 480 Volt 2 Speed 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed 30200-17
Switch Micro Convection Oven Door 30301-02
Switch Toggle On-Off 30303-06
Switch Toggle Spring Return 30303-16
Thermostat Safety 490°F Open
Thermostat 450°F Oven
Terminal Block 24 Position Quick Disconnect 30503-01
Relay 240 VAC 30600-02
Contactor 3 Pole 24 VAC (Heat) 30700-06
Contactor 2 Pole 24 VAC (208/240 VAC only) 30701-05
Contactor 2 Speed Motor 24 VAC (480V Only) 30705-03
Fuse 15 AMP 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Cable Ribbon Assembly 31110-13
Transformer 480/24 VAC 31400-15
Transformer 240/12 VAC 31400-26
Lamp Socket 31602-04
Lamp Incandescent 250 Volt Clear 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3-Pole 31800-04
Circuit Board Front Panel 40102-24
Circuit Board Microprocessor 40102-26
Circuit Board Microprocessor (with Modem) 40102-29
Probe Temperature Sensor 41100-08
Oven Rack 50200-20
Oven Rack Slide 50200-36
Turnbuckle Assembly 50312-02
Door Left Hand 51100-45
Door Right Hand 51100-46
Panel Label, Purple Plus 60301-116
Valve Manual Main Water Supply (Steam Units) 70400-02
Valve Manual Water Supply (Steam Units) 70402-08
Valve Solenoid 24/60V Water Supply (Steam Units) 70403-01
Regulator Water Supply (Steam Units) 70404-01
Handle Assembly, Single Handle Oven 70603-15
Knob Thermostat 450°F Oven
Knob Damper Black 70701-25
Window Assembly, Oven Door 71301-04
Blower Wheel 71500-05
Blower Wheel (Steam Units) 51100-57
Orifice Water/Steam #60 DRL (Steam Units) 80405-01

30401-09
30402-27

70701-28

69

PARTS LIST ECCO-PT

DESCRIPTION PART NO.

Element ECCO Oven 208/240 Volt 11000 Watts 11090-16
Element ECCO Oven 480 Volt 11000 Watts 11090-18
Motor 1/3 HP 480 Volt 2 Speed 30200-16
Motor 1/3 HP 208/240 Volt 2 Speed 30200-17
Switch Micro Convection Oven Door 30301-02
Switch Toggle Spring Return 30303-16
Thermostat Safety 490°F Open
Thermostat 450°F Oven
Terminal Block 24 Position Quick Disconnect 30503-01
Relay 240 VAC 30600-02
Contactor 3 Pole 24 VAC 30700-06
Contactor 2 Pole 24 VAC (208/240 VAC only) 30701-05
Contactor 2 Speed Motor 24 VAC (480 VAC only) 30705-03
Fuse 15 AMP 300 Volt 30900-10
Fuse Holder 15 Amp 30901-08
Cable Ribbon Assembly 31110-13
Transformer 480/24 VAC 31400-15
Transformer 240/12 VAC 31400-26
Lamp Socket 31602-04
Lamp Incandescent 250 Volt Clear 31603-04
Oven Lamp Lens (Watch Glass) 31604-01
Oven Lamp Lens Gasket 31604-02
Circuit Breaker 208/240 Volt 1-Pole 31800-01
Circuit Breaker 480 Volt 3-Pole 31800-04
Circuit Board Display 40102-25
Circuit Board Microprocessor 40102-26
Circuit Board Microprocessor (with Modem) 40102-29
Probe Temperature Sensor 41100-08
Oven Rack 50200-20
Oven Rack Slide 50200-36
Turnbuckle Assembly 50312-02
Door Left Hand 51100-45
Door Right Hand 51100-46
Panel Label, Purple Plus 60301-119
Valve Manual Main Water Supply (Steam Units) 70400-02
Valve Manual Water Supply (Steam Units) 70402-08
Valve Solenoid 24/60V Water Supply (Steam Units) 70403-01
Regulator Water Supply (Steam Units) 70404-01
Handle Assembly, Single Handle Oven 70603-15
Knob Thermostat 450°F Oven
Knob Damper Black 70701-25
Window Assembly, Oven Door 71301-04
Blower Wheel 71500-05
Blower Wheel (Steam Units) 51100-57
Orifice Water/Steam #60 DRL (Steam Units) 80405-01

30401-09
30402-27

70701-28

70