40ES-KLT Series
SHORT ELECTRIC TILTING FLOOR KETTLE
INSTALLATION - OPERATION - MAINTENANCE
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA
Manufacture Service Questions: 866-518-3977
PART NUMBER 170094 REV B (04/11)
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE. READ, UNDERSTAND
AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED IN THIS MANUAL.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
POST IN A PROMINENT LOCATION
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. THIS INFORMATION
SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS SUPPLIER. AS A MINIMUM,
TURN OFF THE GAS AND CALL YOUR GAS COMPANY AND YOUR AUTHORIZED SERVICE
AGENT. EVACUATE ALL PERSONNEL FROM THE AREA.
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.
NOTIFY CARRIER OF DAMAGE AT ONCE
IT IS THE RESPONSIBILITY OF THE CONSIGNEE TO INSPECT THE CONTAINER UPON
RECEIPT OF SAME AND TO DETERMINE THE POSSIBILITY OF ANY DAMAGE, INCLUDING
CONCEALED DAMAGE. WE SUGGEST THAT IF YOU ARE SUSPICIOUS OF DAMAGE TO
MAKE A NOTATION ON THE DELIVERY RECEIPT. IT WILL BE THE RESPONSIBILITY OF THE
CONSIGNEE TO FILE A CLAIM WITH THE CARRIER. WE RECOMMEND THAT YOU DO SO
AT ONCE.
IMPORTANT - READ FIRST - IMPORTANT
WARNING: BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY.
CAUTION: BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW THE OPERATING INSTRUCTIONS, CAUTIONS, AND
SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL.
WARNING: THIS UNIT IS INTENDED FOR USE IN THE COMMERCIAL HEATING, COOKING AND HOLDING OF WATER AND FOOD
PRODUCTS, PER THE INSTRUCTIONS CONTAINED IN THIS MANUAL. ANY OTHER USE COULD RESULT IN SERIOUS
PERSONAL INJURY OR DAMAGE TO THE EQUIPMENT AND WILL VOID WARRANTY.
WARNING: KETTLE MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING.
IMPROPER INSTALLATION CAN RESULT IN INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
DANGER: ELECTRICALLY GROUND THE UNIT AT THE TERMINAL PROVIDED. FAILURE TO GROUND UNIT COULD RESULT IN
ELECTROCUTION AND DEATH.
WARNING: AVOID ALL DIRECT CONTACT WITH HOT EQUIPMENT SURFACES. DIRECT SKIN CONTACT COULD RESULT IN
SEVERE BURNS.
WARNING: AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT CONTACT COULD RESULT IN
SEVERE BURNS.
CAUTION: DO NOT OVER FILL THE KETTLE WHEN COOKING, HOLDING OR CLEANING. KEEP LIQUIDS A MINIMUM OF 2-3”
(5-8 cm) BELOW THE KETTLE BODY RIM TO ALLOW CLEARANCE FOR STIRRING, BOILING AND SAFE PRODUCT
TRANSFER.
WARNING: TAKE SPECIAL CARE TO AVOID CONTACT WITH HOT KETTLE BODY OR HOT PRODUCT WHEN ADDING
INGREDIENTS, STIRRING OR TRANSFERRING PRODUCT TO ANOTHER CONTAINER.
WARNING: WHEN TILTING KETTLE FOR PRODUCT TRANSFER:
1) USE CONTAINER DEEP ENOUGH TO CONTAIN AND MINIMIZE PRODUCT SPLASHING.
2) PLACE CONTAINER ON STABLE, FLAT SURFACE, AS CLOSE TO KETTLE AS POSSIBLE.
3) DO NOT OVER FILL CONTAINER. AVOID DIRECT SKIN CONTACT WITH HOT CONTAINER AND ITS CONTENTS.
CAUTION: KEEP FLOORS IN FRONT OF KETTLE WORK AREA CLEAN AND DRY. IF SPILLS OCCUR, CLEAN IMMEDIATELY, TO
AVOID SLIPS OR FALLS.
WARNING: FAILURE TO CHECK PRESSURE RELIEF VALVE OPERATION PERIODICALLY COULD RESULT IN PERSONAL INJURY
AND/OR DAMAGE TO EQUIPMENT.
WARNING: DO NOT CONNECT ANY PIPING TO THE PRESSURE RELIEF VALVE. IT MUST BE FREE TO VENT STEAM AS NEEDED.
TO AVOID BURNS FROM THE VENTED STEAM THE VALVE DISCHARGE SHOULD POINT DOWNWARD. IMPROPER
INSTALLATION WILL VOID WARRANTY.
WARNING: DO NOT STAND OR APPLY UNNECESSARY WEIGHT OR PRESSURE ON THE KETTLE FRONT OR POURING LIP. THIS
COULD RESULT IN THE OVERLOAD AND FAILURE OF THE TILT MECHANISM, AND POSSIBLE SERIOUS INJURY AND
BURNS TO THE OPERATOR AND OTHERS.
OM-40ES-KLT 1
IMPORTANT - READ FIRST - IMPORTANT
NOTICE: NEVER LEAVE SANITIZER IN CONTACT WITH STAINLESS STEEL SURFACES LONGER THAN 10 MINUTES. LONGER
CONTACT CAN CAUSE CORROSION.
WARNING: WHEN TESTING, AVOID ANY EXPOSURE TO THE STEAM BLOWING OUT OF THE PRESSURE RELIEF VALVE. DIRECT
CONTACT COULD RESULT IN SEVERE BURNS.
WARNING: TO AVOID INJURY, READ AND FOLLOW ALL PRECAUTIONS STATED ON THE LABEL OF THE WATER TREATMENT
COMPOUND.
WARNING: KEEP WATER AND SOLUTIONS OUT OF CONTROLS AND ELECTRICAL EQUIPMENT. NEVER USE A HIGH PRESSURE
HOSE TO CLEAN KETTLE SURFACES.
CAUTION: MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS MEMBRANES AND CLOTHING. PRECAUTIONS
SHOULD BE TAKEN. WEAR RUBBER GLOVES, GOGGLES OR FACE SHIELD AND PROTECTIVE CLOTHING.
CAREFULLY READ THE WARNINGS AND FOLLOW THE DIRECTIONS ON THE LABEL OF THE CLEANER TO BE USED.
CAUTION: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY THE MANUFACTURER OR AN AUTHORIZED
DISTRIBUTOR CAN CAUSE OPERATOR INJURY AND DAMAGE TO THE EQUIPMENT, AND WILL VOID ALL
WARRANTIES.
IMPORTANT: SERVICE PERFORMED BY OTHER THAN FACTORY AUTHORIZED PERSONNEL WILL VOID WARRANTIES.
WARNING: DO NOT HEAT AN EMPTY KETTLE. EXCESSIVE STEAM PRESSURE COULD DEVELOP.
2 OM-40ES-KLT
Table of Contents
Important Operator Warnings .................................................... page 1-2
References.................................................................................... page 3
Equipment Description................................................................. page 4
Inspection and Unpacking ............................................................ page 5
Installation ..................................................................................... page 6
Initial Start-Up................................................................................ page 7
Operation ................................................................................. page 8-10
Sequence of Operation ................................................................ page 11
Maintenance........................................................................... page 12-15
Cleaning.................................................................................. page 16-17
Troubleshooting...................................................................... page 18-19
Parts List................................................................................ page 20-22
Wiring Diagram........................................................................... page 23
Service Log .......................................................................... page 24-25
References
KLENZADE SALES CENTER ECOLAB. Inc.
370 Wabasha St. Pau , Minnesota 55102
800/352-5326 or 612/293-2233
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Quincy, Massachusetts 02269
NFPA/70 - The National Electrical Code
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Quincy, Massachusetts 02269
NSF INTERNATIONAL
789 N. Dixboro Road
P.O. Box 130140
Ann Arbor, Michigan 48113-0140
UNDERWRITERS LABORATORIES, INC.
333 Pngsten Road
Northbrook, Illinois 60062
ZEP MANUFACTURING CO.
1310-T Seaboard Industrial Blvd.
Atlanta, Georgia 30318
OM-40ES-KLT 3
Equipment Description
Pressure Gauge
Water Gauge Glass
Thermostat Dial
Tilting Crank
Optional Draw-Off Valve
The Blodgett 40ES-KLT is a floor-mounted, tilting, steam jacketed kettle with a
thermostatically controlled, self-contained, electrically-heated steam supply and
appropriate controls, mounted on a sturdy base.
The body of the kettle is constructed of stainless steel, welded into one solid piece.
The kettle is furnished with a reinforced rim and a butterfly shaped pouring lip. It has a
steam jacket rated for working pressures up to 50 PSI. Kettle finish is 180 emery grit
on the inside and bright semi-deluxe on the outside.
The kettle can be tilted with a hand crank to pour out its contents. Stainless steel
panels enclose the controls and the base. Four stainless steel, tubular legs support
the unit. Bullet feet on each of the legs can be adjusted to level the kettle. The units
include a two inch tangent draw off valve.
A built-in steam generator, sized for the kettle capacity and heated by electricity,
delivers steam into the jacket. “Airless” operation of the steam jacket permits uniform,
efficient heating at temperatures as low as 150°F and as high as 298°F. In addition
to the adjustable thermostat for operating control, the unit has a tilt cut-off switch,
low water cut-off, safety valve, and high-limit pressure switch as safety features. A
heating indicator light, pressure gauge, and sight glass are provided for monitoring
kettle operation.
A single electrical connection is required for installation. The unit may be ordered
for use with 208/240, 400 or 480 volt power. All kettles are wired for three-phase
operation. Single-phase units are also available.
KETTLE CHARACTERISTICS
Kettle Capacity 40 Gallon 150 liter
Jacket Capacity 4 Gallon 15.1 liter
Inside Diameter 30 inches 762 mm
Rim Height 39 inches 991 mm
Total Width 47 inches 1194 mm
Front-to-Back 35 inches 889 mm
Optional equipment available with the kettles:
1. 2” diameter tangent draw-off (product valve)*
2. Strainers, solid disk, 1/4” or 1/8” perforations.
3. Lift-off or counterbalanced cover*
4. Water fill faucets
5. Basket cooking system
6. Kettle brush kit
7. Gallon etch marks*
*Factory installed Options.
4 OM-40ES-KLT
Inspection & Unpacking
CAUTION
SHIPPING STRAPS ARE UNDER TENSION
AND CAN SNAP BACK WHEN CUT. TAKE
CARE TO AVOID PERSONAL INJURY OR
DAMAGE TO THE UNIT BY STAPLES LEFT
IN THE WALLS OF THE CARTON.
CAUTION
THIS UNIT IS VERY HEAVY. INSTALLER
SHOULD OBTAIN HELP AS NEEDED TO
LIFT THIS WEIGHT SAFELY.
The unit will arrive in a heavy shipping carton and will be bolted or banded to a skid.
Immediately upon receipt, inspect the carton carefully for exterior damage.
Carefully cut any polyester straps around the carton and detach the sides of the box
from the skid. Pull the carton up off the unit.
Thoroughly inspect the unit for concealed damage. Report any shipping damage or
incorrect shipments to the delivery agent.
Write down the model number, serial number, and installation date, and retain this
information for future reference. Space for these entries is provided at the top of the
Service Log at the back of this manual. Keep this manual on file and available for
operators to use.
When installation is to begin, carefully cut any straps which hold the unit on the skid. Lift
the unit straight up off the skid. Examine packing materials to be sure loose parts are not
discarded with the materials.
OM-40ES-KLT 5
Installation
WARNING
INSTALLATION OF THE KETTLE MUST
BE DONE BY PERSONNEL QUALIFIED TO
WORK WITH ELECTRICITY. IMPROPER
INSTALLATION CAN RESULT IN INJURY TO
PERSONNEL AND/OR DAMAGE TO
EQUIPMENT.
WARNING
DO NOT CONNECT ANY PIPING TO THE
PRESSURE RELIEF VALVE. THE VALVE MUST
BE FREE TO VENT STEAM AS NEEDED.
IMPROPER INSTALLATION WILL VOID THE
WARRANTY! THE ELBOW ATTACHED TO
THE SAFETY VALVE MUST
POINT TO THE FLOOR.
DANGER
ELECTRICALLY GROUND THE UNIT AT THE
TERMINAL PROVIDED. FAILURE TO GROUND
UNIT COULD RESULT IN
ELECTROCUTION AND DEATH.
The kettle is provided with complete internal wiring and is ready for immediate
connection. Wiring diagrams are provided in this manual and on the inside of the
control housing service panel. Any mechanical or electrical changes must be approved
by the Food Service Engineering Department.
The completed unit has been operated at the factory to test all controls and heater
elements.
1. Set the kettle in place and level it by turning the bullet feet to adjust leg
length. Allow clearance around the unit for cleaning, maintenance and
service.
2. Confirm that the jacket water level is at the mid point of sight glass. If the
level is low, follow the instructions under “Jacket Filling and Water
Treatment,” Page 14.
3. The open end of the elbow on the outlet of the pressure relief valve must face
downward. If it does not, turn it to the correct position.
4. Provide electrical power specified on the equipment electrical information
plate. Observe local codes an/or The National Electrical Code in accordance
with ANSI/NFPA 70 - (current edition.).
5. The equipment is shipped ready for three phase operation. Refer to the wiring
diagram for single phase operation.
6. Bringing the electrical service through the entrance at the rear of the support
housing with one inch conduit, making a watertight connection with the
incoming lines. Observe local codes and/or the National Electrical Code
in compliance with ANSI/NFPA 70 (latest edition). When there is a choice
between applicable codes, we recommend following the more stringent
code. (A BX connection is not recommended.)
7. Electrically ground the unit at the terminal provided.
8. Check the following to confirm that your kettle is properly installed:
• Roomforcleaningandservicing
• Thekettleislevel
• Thecorrectamountofwaterisinthekettlejacket
• Pressurereliefvalveispointeddown
• Unitisconnectedwithawaterproofsupplyofthepropervoltage,phase
and amperage rating
ELECTRICAL SPECIFICATIONS*
Voltage kW Amperes
208V 21 59
240V 24 61
480V 24 29
6 OM-40ES-KLT
400V 24 35
* All at 3-phase. Single-phase also available.
Initial Start-Up
WARNING
AVOID ALL DIRECT CONTACT WITH HOT
SURFACES. DIRECT SKIN CONTACT
COULD RESULT IN SEVERE BURNS.
AVOID ALL DIRECT CONTACT WITH HOT
FOOD OR WATER IN THE KETTLE. DIRECT
CONTACT COULD RESULT IN SEVERE BURNS.
Now that the kettle has been installed, you should test it to ensure that the unit is
operating correctly.
1. Remove all literature and packing materials from inside and outside of the unit.
2. If the unit is equipped with a draw-off valve (product outlet), clean out any
material which might clog or damage the draw-off.
3. Confirm that the tilting mechanism is operating properly by tilting the kettle
through its full range. Then return the kettle to the upright position.
4. Turn on the electrical service to the unit.
5. Pour 1-2 quarts of water into the kettle.
6. Following “To Start Kettle” instructions in the “Operation” section of this manual,
begin heating the water at the highest thermostat setting. The heating indicator
light should come on immediately, and heating should continue until the water
boils.
7. To shut down the unit, turn the thermostat dial to “OFF”.
If the unit functions as described above, it is ready for use. If the unit does not function
as described, contact your local Certified Service Agency.
The pressure gauge should show a vacuum
of 20 to 30 inches when the kettle is cold.
IMPORTANT: BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW THE
OPERATING INSTRUCTIONS, CAUTIONS AND SAFETY INSTRUCTIONS CONTAINED
IN THIS MANUAL.
OM-40ES-KLT 7
Operation
CAUTION
DO NOT OVERFILL THE KETTLE WHEN
COOKING, HOLDING OR CLEANING. KEEP
LIQUIDS AT LEAST 2-3” (5-8 cm) BELOW
THE KETTLE BODY RIM TO ALLOW
CLEARANCE FOR STIRRING, BOILING
PRODUCT AND SAFE TRANSFER.
Pressure Gauge
Water Gauge Glass
Thermostat Dial
Optional Draw-Off Valve
Tilting Crank
The operator controls kettle heating with the thermostat dial. The dial turns heating
element power on or off and sets the kettle operating temperature.
A. Controls
Operator controls for the kettle are:
1. Thermostat dial, which turns the thermostat on or off, and sets the kettle
temperature.
2. Tilting crank, used to tilt the kettle body.
3. Indicator Lights to alert operator of unit condition. Heat Indicator - indicates
that main power is on to produce steam in the kettle jacket.
B. Operating Instructions
1. To Start Kettle
a. EVERY DAY make sure that the jacket water level is in the center of
the sight glass. If the level is too low, see “Jacket Filling and Water
Treatment” on page 14.
b. Check the pressure gauge. If the gauge does not show 20 to 30
inches of vacuum (that is, a reading of 20 to 30 below 0), see “Jacket
Vacuum” on page 14.
c. Turn on the electrical power to the unit.
d. Turn the thermostat dial to the desired setting. The heating indicator
light- Indicates that the kettle is heating. Cycling of the light on and
off shows hat the kettle is being held at the set temperature. Once in
each cycle the contactors in the support housing will make a clicking
sound. This is normal.
2. To Transfer Product or Empty Kettle:
a. The kettle is tilted by means of the crank on the front of the control
housing. The kettle remains in the position to which tilted until
cranked again.
b. Product may also be transfered by means of the optional draw-off
valve if the kettle is so equipped.
3. To Stop Kettle Heating:
a. Turn thermostat dial to OFF.
b. For a prolonged shut-down:
1. Follow the procedure above.
8 OM-40ES-KLT
2. Disconnect electric power from the unit.
Operation
WARNING
WHEN TILTING KETTLE FOR PRODUCT
TRANSFER:
1) WEAR PROTECTIVE OVEN MITT
ANDPROTECTIVE APRON.
2) USE DEEP CONTAINER TO CONTAIN
AND MINIMIZE PRODUCT SPLASHING.
3) PLACE CONTAINER ON STABLE,
FLAT SURFACE, AS CLOSE TO
KETTLE AS POSSIBLE.
4) STAND TO LEFT OR RIGHT OF KETTLE
WHILE POURING — NOT DIRECTLY IN
POUR PATH OF HOT CONTENTS.
5) POUR SLOWLY, MAINTAINING CONTROL OF
KETTLE AT ALL TIMES, AND RETURN KETTLE
BODY TO UPRIGHT POSITION
AFTER CONTAINER IS FILLED OR
TRANSFER IS COMPLETE.
6) DO NOT OVERFILL CONTAINER. AVOID
DIRECT SKIN CONTACT WITH HOT
CONTAINER AND ITS CONTENTS.
WARNING
AVOID ALL DIRECT CONTACT WITH HOT
SURFACES. DIRECT SKIN CONTACT COULD
RESULT IN SEVERE BURNS.
AVOID ALL DIRECT CONTACT WITH HOT
FOOD OR WATER IN THE KETTLE. DIRECT
CONTACT COULD RESULT IN SEVERE BURNS.
TAKE SPECIAL CARE TO AVOID CONTACT
WITH HOT KETTLE BODY OR HOT PRODUCT,
WHEN ADDING INGREDIENTS, STIRRING OR
TRANSFERRING PRODUCT TO
ANOTHER CONTAINER.
CAUTION
KEEP FLOORS IN FRONT OF THE
KETTLE SPILLS OCCUR, CLEAN AT
ONCE TO AVOID SPILLS.
UseOfCommonAccessories
A. Lift-Off or Counterbalanced Cover
As with stock pot cooking, an optional cover can speed up the heating of water
and food products. A cover helps retain heat and reduces the heat and humidity
releasedintothekitchen.Usingacovercanreducesomeproductcooktimes
and help maintain the temperature, color and texture of products being held or
simmered for longer periods.
Be sure the handle is secure on the lift-off cover before using. ALWAYS use the
handle to place or remove cover from the kettle. Wear protective oven mitts and
a protective apron.
When putting a lift-off cover on the kettle, position it on top of kettle rim, with its
flat edge facing the pouring lip.
When removing the lift-off cover:
1. Firmly grasp the handle.
2. Lift rear edge (farthest from operator) 1- 2” (3-5 cm) to allow steam and
water vapor to escape the cooking vessel. Wait 2-3 seconds.
3. Tilt cover to 45-60° angle to allow any hot condensate or product to roll off
cover back into kettle.
4. Remove cover, ensuring that any remaining hot condensate or product
does not drip on operator, floor or work surfaces.
5. Place cover on safe, flat, sanitary, out-of- the-way surface, or return to
kettle.
WARNING
AVOID ALL DIRECT CONTACT WITH HOT
SURFACES. DIRECT SKIN CONTACT
COULD RESULT IN SEVERE BURNS.
AVOID ALL DIRECT CONTACT WITH HOT
FOOD OR WATER IN THE KETTLE. DIRECT
CONTACT COULD RESULT IN SEVERE BURNS.
OM-40ES-KLT 9
Operation
CAUTION
DO NOT TILT KETTLE WITH LIFT-OFF COVER
IN PLACE. COVER MAY SLIDE
OFF, CAUSING INJURY TO OPERATOR.
CAUTION
DO NOT OVERFILL THE KETTLE WHEN
COOKING, HOLDING OR CLEANING.
KEEP LIQUIDS AT LEAST -3” (5-8 CM)
BELOW THE KETTLE RIM TO ALLOW
CLEARANCE FOR STIRRING, BOILING
AND SAFE PRODUCT TRANSFER.
WARNING
AVOID ALL DIRECT CONTACT WITH
HOT FOOD OR WATER IN THE KETTLE.
DIRECT CONTACT COULD
RESULT IN SEVERE BURNS.
B. Basket Insert
An optional kettle basket insert set can assist in cooking water-boiled products
including eggs, potatoes, vegetables, shell fish, pasta and rice. The nylon
mesh liner must be used for products smaller than the basket mesh size,
(approximately 1/4” (6 mm). This includes rice and small pasta shapes.
TipsForUse.
1. Allow for displacement of the 3 baskets and product. This may mean only
filling the kettle half way. Test baskets and product displacement with the
kettle OFF, and with cold water in the kettle.
2. Load baskets on a level, stable work surface.
3. Lift loaded baskets with both hands. Get help from another person if the
basket is too heavy for safe handling.
4. Slowly lower product into kettle and securely hook the basket to the “Y”
frame.
5. When removing baskets with cooked product, lift straight up, ensuring
basket bottoms clear the kettle rim and pouring lip. Wear protective oven
mitts and protective apron.
6. Allow hot water to fully drain from product, before moving basket away
from the kettle. Do not rest baskets on kettle rim or pouring lip. If baskets
are too heavy for individual to lift and safely move, get help. Remove
product immediately from basket into another container, being sure to
avoid contact with hot product and hot basket or. . .
7. Place baskets with food on a stable, flat surface, inside a solid steamer or
bake pan, to catch any remaining hot water draining from product.
10 OM-40ES-KLT
Sequence of Operation
The following “action-reaction” outline is provided to help the user understand how the
equipment works.
When the operator starts up the kettle by turning the operating thermostat dial from “OFF”
to a desired setting, the thermostat switch closes. This lights up the heating indicator light
and causes the contactors to close, allowing power to flow to heating elements.
When the temperature of the steam jacket reaches the value corresponding to the dial
setting, the thermostat switch opens. This turns off the heating indicator light and causes
the contactors to open, stopping the power to the heaters.
As soon as the thermostat senses that the kettle is cooling below the set point, the
thermostat switch closes, the heating indicator light comes on, the contactors close, and the
heaters come on again. On-off cycling continues, keeping the kettle at the set temperature.
This is why the heating indicator light cycles on and off during normal operation. Every time
the kettle is tilted, the tilt cut-off switch interrupts the power supply to the heaters, so that
the heating elements will not operate while not submerged in the jacket water.
If steam pressure greater than 50 PSI is generated in the jacket, the safety valve will open
and relieve the excess pressure.
If the jacket water level gets too low before the heating elements overheat, the high-limit
control will open and shut off power to the elements until the kettle cools.
Setting the operation thermostat dial to “OFF” shuts down all control and heating circuits.
The kettle has the following safety features in addition to the 90-second ignition timer:
1. Low water cutoff relay that will shut off gas supplies to all burners until the jacket
water level is corrected.
2. High limit pressure switch, set to open at about 46 PSI and to shut down the burners
until jacket pressure is decreased.
3. Pressure relief valve, which will release steam if jacket pressure exceeds 50 PSI.
4. Tilt switch, which shuts off all burners when the kettle is tilted.
5. Gas pressure regulator built into the gas control valve.
OM-40ES-KLT 11
Maintenance
WARNING
WHEN TESTING, AVOID ANY EXPOSURE
TO THE STEAM BLOWING OUT OF THE
SAFETY VALVE. DIRECT CONTACT
COULD RESULT IN SEVERE BURNS.
The pressure gauge should show a vacuum
of 20 to 30 inches when the kettle is cold.
NOTICE: Contact an authorized representative when repairs are required.
A. Periodic Maintenance
A Service Log is provided at the back of this manual with the warranty
information. Each time maintenance is performed on your kettle, enter the
date on which the work was done, what was done, and who did it. Keep this
manual on file and available for operators to use.
Periodic inspection will minimize equipment down time and increase the
efficiency of operation. The following points should be checked:
[BY OPERATOR]
1. Check the pressure/vacuum gauge every day. The gauge should show
a vacuum of 20 to 30 inches, when the kettle is cold. If it does not, see
“Jacket Vacuum” on page 14.
2. Also check the jacket water level every day. It should be between the
marks on the gauge glass. If the level is low, see “Jacket Filling and Water
Treatment” on page 14.
3. Carefully test the pressure relief valve at least twice each month. With
the kettle operating at 15 psi (105 kPa),pull the test lever and let it snap
back to its closed position. If there is little discharge (mostly air), and the
pressure gauge drops back to zero PSI, allow the pressure to build back
tovePSIandrepeattheprocedure.(Tip:Usingascrewdriverorother
implement to pull the ring will help you avoid contact with the steam.
Test the pressure relief valve at
least twice monthly.
[BY SERVICE TECHNICIAN]
4. Electrical wiring should be kept securely connected and in good condition.
5. The inside of the support housing should be kept clean.
12 OM-40ES-KLT
Maintenance
Zerk
Fitting
6. The gear housing has fittings for lubrication of moving parts. The gears do
not run in oil, so periodic lubrication with grease is necessary.
7. Frequency of lubrication depends on operating conditions, but it should be
done at least once every six months.
8. Usea#2gradeLGIlithiumgreasetoaddgreasethroughZerkttingson
gear housing until it flows out of the bearings around the trunnion shaft.
9. Place liberal amounts of grease on the gear to cover the arc that is in contact with the worm gear.
10. Keep electrical wiring and connections in good condition.
11. Keep the inside of the control console clean and dry.
Liberally grease the wheel where it
contacts the worm gear.
OM-40ES-KLT 13
Maintenance
WARNING
TO AVOID INJURY, READ AND FOLLOW ALL
PRECAUTIONS STATED ON THE LABEL OF
THE WATER TREATMENT COMPOUND.
Pressure
Gauge
Safety
Valve
Pipe
Plug
Check
Valve
B. Jacket Vacuum/Removing Air from Jacket
When the kettle is cold, a positive pressure reading on the pressure/vacuum
gauge or a reading near zero indicates that there is air in the jacket. Air in the
jacket acts as an insulator, and slows kettle heating.
To remove air:
1. Start the unit. (Be sure there is water or product in the kettle when
heating).
2. When the pressure/vacuum gauge reaches a positive pressure reading of
five PSI, release the trapped air and steam by pulling up the safety valve
ring for about five seconds. Repeat this step three or four times. Then let
the pull ring snap back into the closed position.
3. If there is little discharge (mostly air), and the pressure gauge drops back
to zero PSI, allow the pressure to build back to five PSI and repeat the
procedure.
4. Once steam has been vented from the jacket as described in b, above,
remove the hot water from the kettle and replace it with cold. This will
condense steam in the kettle jacket, and the pressure gauge should
show a reading of 20 to 30 inches mercury (Hg) below zero. If it does not,
or if the vacuum is leaking down, contact an authorized service agency to
correct the problem.
Test the safety valve
at least twice monthly.
C. Jacket Filling and Water Treatment
The jacket was charged at the factory with the proper amount of treated water.
You may need to restore this water, either because it was lost as venting
steam or by draining. If you are replacing water lost as steam, use distilled
water. If you are replacing treated water that ran out of the jacket, prepare
more treated water as directed in “Water Treatment Procedure,” below.
1. Allow the kettle to cool completely. The procedure will be easier with the
kettle under vacuum ( pressure gauge reading below zero).
2. Allow the kettle to cool completely. Remove the pipe plug from the jacket
llassembly.Pourinthedistilledortreatedwater.Usingafunnelwill
help you in this process. Hold the pressure relief valve open while you
pour, to let air escape from the jacket. Continue adding water until the
water level rises to the center of the round sight glass.
3. Position a funnel in the opening and fill it with properly treated water.
4. Air that gets into the jacket during the filling operation must be removed,
because it will make heating less efficient. Follow the procedure in
Jacket Vacuum/Removing Air From Jacket above, to restore a negative
pressure reading.
14 OM-40ES-KLT
Maintenance
D. Water Treatment Procedure
1. Obtain water treatment compound and a pH test kit from your authorized
parts distributor.
2. Fill a mixing container with the measured amount of water required. (See
table). Distilled water is recommended.
3. Hang a strip of pH test paper on the rim of the container, with about 1 inch
of the strip below the surface of the water.
4. Measure the water treatment compound (One way to do this is to add the
compound from a measuring cup.)
5. Stir the water continuously, while you slowly add water treatment compound, until the water reaches a pH between 10.5 and 11.5. Judge the pH
by frequently comparing the test strip color with the color chart provided in
the pH test kit. If you are color blind use an electroanalytical instrument to
measure the pH level or have a person who is not color blind read the test
strip color level.
6. Record the exact amounts of water and treatment compound used. These
amounts may be used again, if the same water sources and compound are
used in the future. However, it is best to check the pH each time treated
water is prepared.
Model Jacket Capacity
40ES-KLT
4 Gallons
(15.1 liter)
OM-40ES-KLT 15
Cleaning
WARNING
KEEP WATER AND SOLUTIONS AWAY
FROM CONTROLS AND ELECTRICAL
EQUIPMENT. NEVER SPRAY THE SUPPORT
HOUSING OR ELECTRICAL CONNECTIONS.
CAUTION
MOST CLEANERS ARE HARMFUL TO THE
SKIN, EYES, MUCOUS MEMBRANES, AND
CLOTHING. PRECAUTIONS SHOULD BE
TAKEN. WEAR RUBBER GLOVES, GOGGLES
OR FACE SHIELD, AND PROTECTIVE
CLOTHING. READ THE WARNINGS AND
FOLLOW THE DIRECTIONS ON THE LABEL OF
THE CLEANER CAREFULLY.
CAUTION
NEVER LEAVE A SANITIZER IN CONTACT
WITH STAINLESS STEEL SURFACES LONGER
THAN 30 MINUTES. LONGER
CONTACT CAN CAUSE CORROSION.
1. Suggested Tools
a. Cleaner, such as Klenzade HC-10 or HC-32 from ECOLAB, Inc.
b. Kettle brushes in good condition.
c. Sanitizer such as Klenzade XY-12.
d. Film remover such as Klenzade LC-30.
e. Spray Degreaser
f. DeLimer/Descaler
2. Precautions
Before cleaning, shut off the kettle by turning the thermostat dial to “OFF,” and
shut off all electric power to the unit at a remote switch, such as the circuit
breaker.
3. Procedure
a. Clean food-contact surfaces as soon as possible after use. If the unit is in
continuous use, thoroughly clean and sanitize the interior and exterior at
least once every 12 hours.
b. Scrape and flush out food residues. Be careful not to scratch the kettle
with metal implements.
c. Prepare a hot solution of the detergent/ cleaning compound as instructed
by the supplier. Clean the unit thoroughly. A cloth moistened with cleaning
solution can be used to clean controls, housings, and electrical conduits.
Scrapers or steel wool can harm
the kettle surface.
Useonlyasponge,clothorplastic
brush to clean the kettle.
d. Rinse the kettle thoroughly with hot water, then drain completely.
e. As part of the daily cleaning program, clean soiled external and internal
surfaces. Remember to check the sides of the unit and control housing.
f. To remove stuck materials, use a brush, sponge, cloth, plastic or rub-
ber scraper, or plastic wool with the cleaning solution. To reduce effort
required in washing, let the detergent solution sit in the kettle and soak
into the residue. Do NOT use abrasive materials or metal tools that might
scratch the surface. Scratches make the surface harder to clean and
provide places for bacteria to grow.
Do NOT use steel wool, which may leave particles in the surface and
cause eventual corrosion and pitting.
16 OM-40ES-KLT
Cleaning
g. The outside of the unit may be polished with a stainless steel cleaner such
as“Zepper”fromZepManufacturingCo.
h. When equipment needs to be sanitized, use a solution equivalent to one
that supplies 200 parts per million available chlorine. Obtain advice on
sanitizing agents from your supplier of sanitizing products. Following the
supplier’s instructions, apply the agent after the unit has been cleaned and
drained. Rinse off the sanitizer thoroughly.
i. It is recommended that each piece of equipment be sanitized just before
use.
j. If there is difficulty removing mineral deposits or a film left by hard water
or food residues, clean the kettle thoroughly and then use a deliming agent,
in accordance with the manufacturer’s directions. Rinse and drain the unit
before further use.
k. If cleaning problems persist, contact your cleaning product representative
for assistance. The supplier has a trained technical staff with laboratory
facilities to serve you.
NOTICE: NEVER LEAVE A CHLORINE SANITIZER IN CONTACT WITH STAINLESS
STEEL SURFACES LONGER THAN 30 MINUTES. LONGER CONTACT CAN CAUSE
STAINING AND CORROSION.
OM-40ES-KLT 17
Troubleshooting
Your kettle is designed to operate smoothly and efficiently if properly maintained. However, the following is a list of checks to make
in the event of a problem. Wiring diagrams are furnished inside the service panel and in this manual. If an item on the list is
followed by X, the work should be done by a qualified service representative.
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY THE MANUFACTURER AND/OR AUTHORIZED
DISTRIBUTOR CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
(X indicates work that should only be performed by a qualified service representative)
Kettle will not heat, and
heating indicator will not
come on.
Kettle will not heat, but
heating indicator comes
on.
Kettle continues heating
after it reaches the
desired temperature
User a. Electric power supply to the unit.
b. Water level in jacket.
Authorized
Service Rep Only
User a. For air in the jacket. See “Jacket Vacuum” in the Maintenance
Authorized
Service Rep Only
User a. Thermostat dial setting.
Authorized
Service Rep Only
c. Control circuit fuses. Replace a blown fuse only with a fuse of the
same AMP rating. X
d. For loose or broken wires. X
e. Tilt cut-off switch. X
f. That pressure switch is open. X
g. Operation of variable thermostat. X
h. Low water cutoff. X
section of this manual.
b. Contactor. X
c. Heater elements with ohmmeter for ground short or open element. If
element is defective, call service. X
b. Thermostat circuit for short. X
c. Thermostat operation. The thermostat should click when the dial
is rotated above and below the setting for the temperature of the
kettle. X
d. Contactor, to determine whether it is energized or stuck. X
18 OM-40ES-KLT
Troubleshooting
SYMPTOM WHO WHAT TO CHECK
(X indicates work that should only be performed by a qualified service representative)
Kettle stops heating
before it reaches the
desired temperature.
Kettle heats slowly. User a. For air in the jacket. See“Jacket Vacuum” in the “Maintenance”
Pressure relief valve pops. User a. For air in the jacket. See“Jacket Vacuum”in the “Maintenance”
Pressure relief valve
leaks a small amount of
steam when the kettle is
operating.
User a. Thermostat dial setting.
Authorized
Service Rep Only
Authorized
Service Rep Only
Authorized
Service Rep Only
User a. For contamination that prevents seating of valve. With full pressure
Authorized
Service Rep Only
b. Thermostat calibration. X
c. Thermostat operation. The thermostat should click when the dial
is rotated above and below the setting for the temperature of the
kettle. X
section of this manual.
b. Heater elements with ohmmeter for ground short or open element. If
an element is defective, call service. X
c. Voltage of main power source. X
section of this manual.
b. Whether kettle was being heated empty when valve popped.
c. Pressure switch setting. X
d. Thermostat operation. Thermostat should click when the dial is
rotated above and below the setting for the temperature of the
kettle. X
e. Pressure relief valve. If the valve pops at pressures below 48 PSI,
replace it. X
f. Contactor, to determine whether it is de-energized. X
in the jacket, pull the lever all the way briey to blow the valve clean,
then let the lever snap back to seat the valve.
b. Safety valve for defects. Replace any defective valve with an identical
valve. X
Kettle is hard to tilt.
Authorized
Service Rep Only
a. Tilting gear and worm for contamination and for proper alignment
and lubrication. X
OM-40ES-KLT 19
Parts List
3
1
2
4
27
28
26
8
10
35
6
9
7
29
20 OM-40ES-KLT
5
25
Parts List
22
20
15
39
38
11
40
19
21
18
41
12
36
37
13
14
17
16
30
32
34
23
31
24
33
OM-40ES-KLT 21
Parts List
To order parts, contact your Authorized Service Agent. Supply the model designation, serial number, part description, part number,
quantity, and when applicable, voltage and phase.
Key Description Part#
1 Water Fill Assembly 139396
2 Safety Valve 097005
3 Check Valve 004187
4 Pressure Gauge 170003
5 Trunnion Support Arm Assembly 137877
Kettle Body Assembly, No TDO 208V
Kettle Body Assembly, No TDO 240V
Kettle Body Assembly, No TDO 480V
6
Kettle Body Assembly, TDO 208V
Kettle Body Assembly, TDO 240V
Kettle Body Assembly, TDO 480V
7 Slight Glass 108554
8 Knob Thermostat 170229
9 Base and Pedestal Assembly 147855
10 Light, Red 116383
11 Pedestal Weldment 138107
12 Electrical Mount Assembly 138123
13 Tilt Switch 002982
14 Contactor 148102
Transformer, 208/240v/24v 40va
15
Transformer, 480v/24v 40va
16 Ground Terminal 129714
17 Terminal Block 003888
18 Fuse Holder 077854
19 Fuse, 3 Amp 077853
Water Level Board
20
21 Pressure Switch 096963
22 Thermostat 009730
23 Water Level Probe 070178
140593
140594
140595
140596
140597
140598
137441
137694
122192
Key Description Part#
Element, 208v 9.95kw
24
Element, 240v 8kw
Element, 480v 8kw
25 Foot, Adjustable Bullet 013275
26 Handle, Crank 013617
27 Shaft, Handwheel 013624
28 Stand Cladding 139054
29 Leg Tube 147506
30 Left Frame Support 146999
31 Right Frame Support 137953
32 Inner Frame Support 137954
33 Rear Frame Support 146998
34 Short Frame Support 137955
35 Pedestal Cladding Assembly 138112
36 Gear Bore 013609
37 Worm Gear 012026
38
Bearing
39 Bearing Housing 009762
40 Key 3/8” 001474
41 Set Screw 012060
X Cover Skirt 139834
Cover, Side Pedestal
X
X Cover, Top Pedesta 138114
X Cover, Lower Trunnion Support Arm 137863
X Cover,UpperTrunnionSupportArm 137860
X Overlay Operating Instructions 170011
X Harness, Wire 148544
X Harness, High Voltage 149942
X Harness, Control 149943
005977
005974
005980
009765
001464
22 OM-40ES-KLT
X - Item not depicted/called out in drawing or photograph.
Wire Diagrams
OM-40ES-KLT 23
Service Log
Model No: Purchased From:
Serial No: Location:
Date Purchased: Date Installed:
Purchase Order No: For Service Call:
Date Service Performed Performed By
24 OM-40ES-KLT
Service Log
Model No: Purchased From:
Serial No: Location:
Date Purchased: Date Installed:
Purchase Order No: For Service Call:
Date Service Performed Performed By
OM-40ES-KLT 25
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA
Telephone: 866-518-3977
PART NUMBER 170094 REV B (04/11)
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