Blodgett KCO-25E Installation Manual

KCO -25E

CONVECTION OVEN

INSTALLATION -- OPERATION -- MAINTENANCE

BLODGETT OVEN COMPANY

www.blodgett.com

44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone [phone] Fax: [phone]

PN 31594 Rev C (6/01)

E 2000 --- G.S. Blodgett Corporation

IMPORTANT

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

FORYOURSAFETY

Do not store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.

The information contained in this manual is i mportant for the proper
installation, use, and maintenance of this oven. Adherence to these
procedures and instructions will result in satisfactory baking results
and long, trouble free service. Please read this manual carefully and
retain it for future reference.

Errors: Descriptive, typographic or pictorial errors are subject to correc-

tion. Specifications are subject to change without notice.

THE REPUTATION YOU CAN COUNT ON

For over a century and a half, The Blodgett Oven Company has been building
ovens and nothing but ovens. We’ve set the industry’s quality standard for all
kinds of ovens for every foodservice operation regardless of size, application
or budget. In fact, no one offers more models, sizes, and oven applications
than Blodgett; gas and electric, full-size, half-size, countertop and deck, con­vection, Cook’n Hold, Combi-Ovens and the industry’s highest quality Pizza
Oven line. For more information on the full line of Blodgett ovens contact your
Blodgett representative.

Your Service Address: Model:

Serial Number:

Your oven was installed by:

Your oven’s installation was checked by:

Table of Contents

INTRODUCTION

Electrical Specifications 2.................................................

Oven Approvals 3........................................................

Pre-Installation 4.........................................................

Delivery 4...............................................................

INSTALLATION

Oven Location 5.........................................................

Electrical

Connections 5...........................................................

Oven Assembly 6.........................................................

OPERATION

General Guidelines for Operating Personnel 8................................

Oven Controls 9.........................................................

Display Messages 9.......................................................

Oven Operation 10........................................................

Product Programming 11...................................................

MAINTENANCE

Cleaning the Oven 12......................................................

Preventative Maintenance 12................................................

Troubleshooting Guide 13..................................................

INTRODUCTION

CONNECTIO

N

ELECTRICAL SPECIFICATIONS

KIOSK CONVECTION OVEN KCO-25E

AMPERES

KW/SECTION VOLTS (60 HZ) PHASE

3.0 208 1 15 --- 15 14

* Refer to Page 4 in this manual for Electrical Connection specifications

Load ratings are double the above data for Double Stacked units.

L1 L2 L3

ELECTRICAL

AWG*

2

INTRODUCTION

OVEN APPROVALS

KCO-25E

Single

KCO-25E

Double Stacked

3

INTRODUCTION

PRE -INSTALLATION

THE INSTALLATION INSTRUCTIONS
CONTAINED HEREIN ARE FOR THE USE
OF QUALIFIED INSTALLATION PERSON­NEL ONLY. INSTALLATION OR SERVICE
BY OTHER THAN QUALIFIED PERSON­NEL MAY RESULT IN DAMAGE TO THE
OVEN AND/OR INJURY TO THE OPERA­TOR.

Qualified installation personnel are individuals, a
firm, a corporation, or a company which either in
person, or through a representative are engaged in
and responsible for :

D

The installation of electrical wiring from the elec­tric meter, main control box, or service outlet, to
the appliance. Qualified installation personnel
must be experienced in such work, familiar with
all precautions required, and have complied with
all requirements of state or local authorities hav­ing jurisdiction. Reference: National Electrical
Code, ANSI/NFP A 70 --- Latest Edition and/or
Canadian Electrical Code CSA C22.1 as applica­ble.

DELIVERY

All Blodgett Ovens are strapped on heavy wooden
skids, and surrounded by tri-wall cartons to prevent
shipping damage. When tendered to the carrier,
each unit has been carefully inspected and packaged.

Upon delivery of your Blodgett oven:

D

Inspect the shipping container for ex ternal dam­age. Any evidence of damage should be noted on
the delivery receipt, which must be signed by the
driver.

D

Uncrate the oven and check for any concealed
damages. Carriers will accept claims for damages,
if notified within 15 days of delivery, and the car­ton is retained for inspection.

The Blodgett Oven Co. cannot accept re­sponsibility for loss or damages suffered in
transit. The carrier assumed full responsibil­ity for delivery in good order, when the ship­ment was accepted. However we are pre­pared to assi st you in your claim.

D

The ventilation of this oven should be in accor­dance with local codes. In the absence of local
codes, refer to the National ventilation code
titled, “Standard for the Installation of Equip­ment for the Rem ov alof Smoke and Grease Laden
Vapors from Commercial Cooking Equipment”,
NFPA -9 6 -Latest Edition.

4

OVEN LOCATION

INSTALLATION

The well planned and proper placement of the oven
will result in long term operator convenience and sat­isfactory performance. It is therefore, urged that ad­equate thought be given to the location of the oven
prior to its delivery for installation.

Placethe oven in an area which is accessible for prop­er operation and servicing.

It is also essential that ventilation air not be ob­structed in any way if proper operation is to be as­sured. Tripping of the blower motor thermal over­load protective device is caused by excessive ambient
temperature in the motor compartment resulting
from insufficient ventilation. Such a condition must
be corrected immediately if permanent damage to
theovenistobeavoided.

ELECTRICAL
CONNECTIONS

This unit is supplied with a power cord and L6-20P
NEMA plug (3 prong grounding 250 volt). It is in­tended for use with a L6-20R NEMA receptacle.

Before making any connections to this oven, check
the rating plate attached to the back of the oven to
assure that the voltage, phase and KW rati ng are
compatible with the electrical supply. See the table
on Page 2 for electrical specifications.

WARNING

THIS APPLIANCE IS EQUIPPED
WITH A THREE-PRONG GROUND­INGTYPEPLUGFORYOURPRO­TECTION AGAINST SHOCK HAZ­ARD. THE APPLIANCE MUST BE
PLUGGED DIRECTLY INTO A
PROPERLY GROUNDED THREE
PRONG RECEPTACLE. DO NOT
CUT OR REMOVE THE GROUND­ING PRONG FROM THE PLUG.

5

INSTALLATION

OVEN ASSEMBLY

MOUNTING OVEN ON 4” LEGS:

NOTE:Before operating the KCO-25E, the unit must

be mounted on the legs provided.

1. Tilt the oven onto its back.

2. Screw 4” legs into 4 holes located near oven cor­ners.

3. Use a tool to tighten the hex nut at the top of
each leg.

4. Lift oven forward onto legs.

LEVELING THE OVEN:

After the oven is mounted on the legs it should be lev­eled by screwing the adjustable leg feet in or out as
necessary. Check with a spi rit level placed on the top
of the oven.

DOUBLE STACKING:

1. Mount the lower section on legs as directed.

Stacking

Angle

DOUBLE STACKING

2. Set the upper section on the lower section.

3. Remove the bottom left and right screws from
the upper section. Remove the top left and right
screws from the lower section.

4. Attach the two stacking angles with the screws
removedinStep2.

6

DOOR RELOCATION

The KCO-25E is shipped with the door hinged on t he
right side. If left hand operation is necessa ry use the
following procedure to relocate the door.

1. Shut off the oven power switch.

2. Remove the door as follows:

a.) Loosen the two upper door bolts.
b.) Loosen the two lower door bolts. Remove

the top bolt.

c.) Slide the remaining lower door bolt up in

its slotted hole.

NOTE: The lower door pin attached to

the bolt will release from the
bushing in the unit frame.

d.) Tilt the door (with the 5/16” thick washer)

away from the unit.

e.) Lower the door so that the upper door pin

drops out of the bushing in the unit frame.

3. Relocate the hinge and catch parts as follows:

a.) Remove the trim plates located on the

frame opposite the door pins. The two
plates are attached with one screw each.

NOTE: This will expose the pin/bushing

holes for the alternate door loca­tion.

b.) Move the two brass door bushings in the

unit frame to the alternate door pin/bush­ing holes.

c.) Attach the trim plates to the frame over

the two holes where the bushings were.
Mounting holes are provided at the new
locations.

NOTE: Note that the upper trim plate has

a slotted air opening.

d.) Move the door catch plate located on the

upper door frame to the opposite side of
the oven cavity. Mounting holes are pro­vided at the new location for the catch
plate (two screws).

4. Reattach the door as follows:

a.) Attach the door to the unit at the relo-

cated bushings by reve rsing the steps
above.

b.) Tighten the four door bolts hand tight

only.

INSTALLATION

5. Relocate the handle and plate assembly on the
door as follows:

a.) Remove the four hex head screws which

attach the handle plates to the door.

b.) Twist the upper plate around the door

handle by at least 90_.

c.) Lower the handle a nd plate assembly out

of the door.

d.) Flip the handle and plate assembly 180_.
e.) Reattach the assembly by inserting the

roller latch plate into the opening at the
door top.

f.) Twist the lower plate around the door

handle to its original mounting position.

g.) Reinstall the four screws through the han-

dle plate into the door.

6. Adjust the door as follows:

a.) Close the door and check that the roller

latch secures the door tightly.

b.) Adjust the catch plate (by its slotted

mounting holes) if necessary.

7. Turn the unit on and verify that the door proxim­ity switch shuts off the fan when the door opens.

Door Catch
Under Overhand

Handle & Plate
Assembly

Door Bolt

Trim Plate

7

OPERATION

GENERAL GUIDELINES FOR
OPERATING PERSONNEL

TO OBTAIN OPTIMUM PERFORMANCE FROM
THEKCO-25E,PLEASEOBSERVETHEFOL­LOWING PROCEDURES AND SUGGESTIONS.

D

Follow the Time and Temperature recommenda­tions provided for the product to be prepared in
the oven. Cooking at higher temperatures will not
reduce cooking time, it will produce unsatisfacto­ry results. Time will vary with the amount of prod­uct loaded, the t ype of pan and the temperature.
Record times and temperatures which provide
best results for future reference.

D

Three rack positions are available in the oven.

D

Do not place a pan or aluminum foil on the bot­tom of the oven. This will obstruct the flow of air
andresultinunevenbaking.

D

When baking, weigh the product to assure equal
quantities in all pans or uneven results may occur.

THE INFORMATION CONTAINED IN
THIS SECTION IS PROVIDED FOR THE
USE OF QUALIFIED OPERATING PER­SONNEL. QUALIFIED OPERATING PER­SONNEL ARE THOSE WHO HAVE CARE­FULLY READ THE INFORMATION CON­TAINED IN THIS MANUAL, ARE FAMIL­IAR WITH THE FUNCTIONS OF THE
OVEN AND/OR HAVE HAD PREVIOUS
EXPERIENCE WITH THE OPERATION
OF THE EQUIPMENT DESCRIBED. AD­HERENCE TO THE PROCEDURES REC­OMMENDED HEREIN WILL ASSURE
THE ACHIEVEMENT OF OPTIMUM PER­FORMANCE AND LONG, TROUBLE ­FREE SERVICE.

8

OPERATION

OVEN CONTROLS

1. POWER ON/OFF - Controls the operation of
the oven. If the power switch is lighted the power
to the unit is on. If the power switch is not lit, the
power to the unit is off.

2. DISPLAY --- Displays time and temperature and
other information related to oven function.
Time is displayed in minutes and seconds and
counts down.

3. START/STOP KEY --- Starts or stops the se­lected product key program.

4. PRODUCT KEYS (1-6) --- Associates a time and
temperaturewith a specific productfor each key.

5. PROGRAM KEY --- Accesses the program mode
to set or change the time or temperature of a
product key.

6. HEAT LIGHT --- Indicates that the elements are
operating.

DISPLAY MESSAGES

Indicates the oven is heating to, or cycling at
the idle temperature. (Temperature the
oven maintains when not in use).

Indicates the oven temperature is too high
for the selected product recipe. Wait until

is di splay ed.

Indicates the oven temperature is too low
for the selected product recipe. Wait until

is di splay ed.

Indicates the oven has reached the selected
recipe temperature. Ready for productload.

Indicates the number of pans of the same
product in one load.

Indicates the timer has counted down to
00:00 and the product is done.

Indicates the control is ready to accept the
code and enter the program mode.

Indicates the control has entered t he pro­gram mode.

Indicates the cook temperature for a prod­uct key can be programmed.

Indicates the cook time for a single pan can
be programmed.

Indicates the cook time for two pans can be
programmed.

Indicates the cook time for three pans can be
programmed.

Indicates an open or shorted probe.

1

23 5

6

4

9

OPERATION

OVEN OPERATION

NOTE:The display examples given below are for a

single pan of product 1.

1. Toggle the POWER SWITCH (1) to the ON
position. T he display reads
to, or cycles at the programmed idle tempera­ture.

2. Select one of the six (6) programmed PROD­UCT KEYS (4). Press the key once if one pan of
the product is to be loaded. The display reads

. Press twice if two pans of the product are
to be loaded. The display reads
three times if three pans of the product are to be
loaded. The display reads

The display flashes
oven temperature is greater than the pro­grammed temperature for the selected product
key. The display flashes
current oven temperature is lower than the pro­grammed temperature for the selected product
key.

as the oven heats

.Press

.

and if the current

and if the

When the display flashes
unit is at the programmed temperature.

3. If the wrongproduct i s selected repeat Step 2 us­ing the correct PRODUCT KEY (4).

If the product choice is correct but the number
of pans is wrong; press the appropriate PROD­UCT KEY (4) until the display reads the correct
number of pans.

4. When both the product selection and number of
pans are correct, and the display flashes
and ; load the product i nto the oven. Close
the door.

5. Press the START/STOP key (3) to begin the
product countdown. The display flashes as the
time counts down.

6. The display flashes
when the product has timed out.

7. Press the START/STOP key (3) to turn off the
buzzer.

8. Remove t he product.

and the buzzer sounds

and the

1

23 5

6

4

10

OPERATION

PRODUCT PROGRAMMING

NOTE: The example given below is for Product 1.

To enter the Program Mode:

1. Press and hold the PROGRAMkey (5) for 3 sec­onds. The buzzer sounds and the display reads

.

NOTE:If the programkey is pressedand NOTheld

the controller displays the current oven
temperature and the program mode will
not be accessed.

2. When the display reads
KEYS (4) to enter the program mode access
code.Theaccesscodeis:1111

3. Press the PROGRAM key (5). The display reads

.

To program a selected Product Key:

1. Press the desired PRODUCT key (4). The con­trol flashes

key) then displays the current cook temperature.
The new cook temperature may now be entered.
Use product key 5 to increase the temperature.
Use product key 6 to decrease the temperature.

If the key is pushed quickly the units will in­crease/decrease by one. If the key is held, the
units will increase/decrease by one to the nearest
ten. The units will then increase/decrease by ten.

When the desired temperature is reached press
the PROGRAM key (5) to save the new temper­ature.

2. T he control flashes
rent t ime for a single pan of product.

The new cook time for a single pan of product
may now be entered in minutes and seconds. Use
product key 5 to increase the time. Use product
key 6 to decrease the time.

When the desired time is reached press the
PROGRAM key (5) to save the new time.

3. T he control flashes
rent time for two pans of product.

The new cook time for two pans of product may
now be entered in minutes and seconds. Use
product key 5 to increase the time. Use product
key 6 to decrease the time.

When the desired time is reached press the
PROGRAM key (5) to save the new time.

(number of selected product

use the PRODUCT

then displays the cur-

then displays the cur-

4. T he control flashes
rent t ime for three pans of product.

The new cook time for three pans of product may
now be entered in minutes and seconds. Use
product key 5 to increase the time. Use product
key 6 to decrease the time.

When the desired time is reached press the
PROGRAM key (5) to save the new time.

5. All items for the selected product key have now
been programmed. The display reads

NOTE: Another product key may be programmed

at this time by repeating Steps 1-4.

To ex i t th e P r o gr a m M o d e :

1. After the last product key has been pro­grammed, press the PROGRAM key (5) to exit
the program mode. The display reads

then displays the cur-

.

.

PRESET PROGRAMMING

The product keys have been preprogrammed at the
factory as follows:

Recipe

1 325_F 15:00 17:00 17:00

2 400_F 15:00 16:00 17:00

3 425_F 16:00 18:00 18:00

4 350_F 00:00 00:00 00:00

5 350_F 00:00 00:00 00:00

6 350_F 00:00 00:00 00:00

Tem p. 1Pan 2Pan 3Pan

RESET DEFAULT PROGRAMMING

To reset the control to the default values listed above:

1. Press and hold PROGRAM key for 3 seconds.
The buzzer sounds and the display reads

NOTE:If the programkey is pressedand NOTheld

the controller displays the current oven
temperature and the program mode will
not be accessed.

2. When the display reads
KEYS to enter the reset default programming
code.

Thecodeis:6662
The controller will reset to the default settings.

3. Press the PROGRAM key (5) to exit the reset
mode.

use the PRODUCT

.

11

MAINTENANCE

CLEANING THE OVEN

On the stainless exterior, deposits of baked on splat­ter may be removed with any of the following ele­ments: Grade FFF Italian Pumice, Liquid Nu Steel,
Permapass, Samea or Cameo paste, Nu Steel, or Du­Bois Temp. Heat tint and heavy discoloration may be
removed with one of the following: Penny-Brite,
Copper-Brite, DuBois Temp., Paste Nu Steel, 5 to
15% phosphori c acid. Apply cleaners when the oven
is cold, and always rub with the grain of the metal.
The racks and rack supports may be cleaned by re­movingthem from the oven and soaking them in a so­lution of ammonia and water.

Care should be taken to keep liquids away from tem­perature probes, heating elements etc. and avoid
spraying the oven’s electrical connections and ther­mostat.

PREVENTATIVE
MAINTENANCE

The best preventative maintenance measures are,
the proper installation of the equipment and a pro­gram for routinely cleaning the ovens. This oven re­quires no lubrication, however, the venting system
should be checked annually for possible deteriora­tion. If maintenance or repairs are required, they

should only be performed by qualified service per­sonnel.

Remember: Always disconnect the power supply be­fore cleaning or servicing the appliance!

12

TROUBLESHOOTING GUIDE

SYMPTOM POSSIBLE CAUSE(S) SUGGESTED REMEDY

S

Blower motor not runni ng

S

Controller displays PROB

S

Motor is running: No Heat

S

No power to oven

S

Door is open

S

Door switch malfunction

S

Motor burned out

S

Short or open temperature
probe

S

Loose probe connections at
computer controller

S

Internal problem with controller

S

Loose wire between element
and relay

S

Element burned out

S

Element relay malfunction

S

Malfunction in controller
thermostat

S

Hi limit thermal switch opened

MAINTENANCE

S

Press POWER ON/OFF key

S

Close the door

S

*

S

*

S

*

S

*

S

*

S

*

S

*

S

*

S

*

S

*

S

Oven on --- Control not workingSComputer controller not

properly installed

S

Internal problem with computer
controller

S

Baking Problems - -- Product
too light or dark

* Denotes remedy is a difficult operation and should be performed by qualified personnel only. It is recommended, however, that All repairs

and/or adjustments be done by your local Blodgett service agency and not by the owner/operator. Blodgett cannot assume responsibility for
damage as a result of servicing done by unqualified personnel.

S

Oven calibration

S

Cook temperature or time not
correct for the product

S

Initial raw product temperature
not consistent for programmed
product time and temperature

S

Reinstall

S

*

S

*

S

Adjust the controller recipe
program

S

Adjust the initial product tem­perature to meet McDonald’s
standards

WARNING!

ALWAYS DISCONNECT THE POWER SUPPLY WHEN SERVICING THE OVEN!

13

CUSTOMER

INSERT

WIRING DIAGRAM

HERE

MCDONALD’S KCO-25E

ORIGINAL EQUIPMENT WARRANTY

The Blodgett Oven Company warrants to each McDonald’s original Buyer that its KCO-25E ovens will be
free from defects in material and workmanship for two years from the earlier of the date of installation or
90 days after shipment. Blodgett Oven Company’s obligation under this warranty shall be limited to replacing
or repairing, at its option, any part found to be defective within the specified warranty period.

Blodgett Oven Company agrees to pay any authorized Blodgett service agency withinthe Continental United
States for any labor required to repair or replace, at Blodgett Oven Company’s option, any part which proves
to be defective due to defects in material or workmanship during the warranty period. This warranty includes
travel time not to exceed two (2) hours and mileage not to exceed one hundred (100) miles, round trip. Any
labor expense or part failure incurred after the warranty period will be the responsibility of the end-user.

This warranty does not cover any defect due to, or resulting from, handling, abuse, misuse, improper ventila­tion, or harsh chemical action, nor shall it extend to any unit from which the serial number has been removed
or altered, or modifications made by unauthorized service personnel or damage by flood, fire or other acts
of God. Adjustments such as calibrations, leveling, tighteni ng of fastene rs or plumbing connections normally
associated with original installation are the responsibilityof the dealer or installer and not that of t he Blodgett
Oven Company.

Blodgett Oven Company shall not be liable, directly or indirectly, under any circumstances for consequential
or incidental damages, including, but not limited to: (i) any loss of business or profits; and (ii) labor, material
or other charges, claims losses or damages incurred or suffered from, in connection with or in consequences
of the working upon, alteration, or repair of any such defective products or parts by persons or firms other
than Blodgett Oven Company.

THIS WARRANTY AND THE OBLIGATIONS ASSUMED BY BLODGETT OVEN COMP ANY ARE
EXCLUSIVE AND IN LIEU OF ALL OTHER LIABILITIES AND WARRANTIES, EXPRESSED OR
IMPLIED. BLODGETT OVEN COMPANY MAKES NO REPRESENTATION OR WARR ANTY OF
ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR ANY OTHER MATTERWITH RESPECT TO THE PRODUCTS SOLD HEREUNDER,
WHETHER USED ALONE OR IN COMBINATION WITH OTHER EQUIPMENT. This warranty gives
buyer specific legal rights, and buyer may have other rights which vary from state to state.

IMPORTANT NOTICE

The end-user purchasing a Blodgett KCO-25E Oven is urged to return the purchaser registration card in­cluded i n the owner’s document package. By returning the registration card, the end-user can establish the
date of inst allation in the end-users’ premises, for purposes o f determining the warranty perio d. If such regis­tration card is not returned, then the warranty period will be deemed to have commenced on the date of in­voice for the particularoven to the dealer or other intermediate customer,which may have the effect of reduc­ing substantially the duration of the warranty period.

Since 1848

50 Lakeside Avenue, Box 586, Burlington, Vermont 05402 USA

Telephone [phone] F A X: [phone]