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IMPORTANT INFORMATION ? KEEP FOR OPERATOR ? IMPORTANT INFORMATION
OPERATOR AND SERVICE MANUAL OM/SM-TDB/7
Part Number 121062 NORTH AMERICA
MODEL: TDB/7
Steam Jacketed Kettle
Self-Contained
Electrically heated
Table top mounted
Tilting
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.
Information contained in this document is
known to be current and accurate at the time
of printing/creation. Unified Brands recommends referencing our product line websites,
unifiedbrands.net, for the most updated
product information and specifications.
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OM/SM-TDB/7
IMPORTANT — READ FIRST — IMPORTANT
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. 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) WEAR PROTECTIVE OVEN MITT AND PROTECTIVE APRON.
2) USE CONTAINER DEEP ENOUGH 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 SIDE OF KETTLE (DEPENDING ON TILTING
HANDLE PLACEMENT) WHILE POURING . DO NOT STAND DIRECTLY IN POUR
PATH OF HOT CONTENTS.
5) POUR SLOWLY, MAINTAIN CONTROL OF KETTLE BODY HANDLE AT ALL
TIMES, AND RETURN KETTLE BODY TO UPRIGHT POSITION AFTER
CONTAINER IS FILLED OR TRANSFER IS COMPLETE.
6) 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 SAFETY VALVE OPERATION PERIODICALLY COULD RESULT
IN PERSONAL INJURY AND/OR DAMAGE TO EQUIPMENT.
WARNING: WHEN TESTING, AVOID ANY EXPOSURE TO THE STEAM BLOWING OUT OF THE
SAFETY 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: BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC
POWER SUPPLY.
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OM/SM-TDB/7
IMPORTANT — READ FIRST — IMPORTANT
WARNING: KEEP WATER AND SOLUTIONS OUT OF CONTROLS AND ELECTRICAL
EQUIPMENT. NEVER SPRAY OR HOSE 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. 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 GROEN
OR THEIR AUTHORIZED DISTRIBUTORS 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.
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OM/SM-TDB/7
Table of Contents
IMPORTANT OPERATOR WARNINGS .................................................. 2
EQUIPMENT DESCRIPTION .......................................................... 5
INSPECTION & UNPACKING .......................................................... 7
INSTALLATION ..................................................................... 8
INITIAL START-UP .................................................................. 9
OPERATION ...................................................................... 10
SEQUENCE OF OPERATION ......................................................... 12
MAINTENANCE ................................................................... 13
CLEANING ........................................................................ 16
TROUBLESHOOTING ............................................................... 18
PARTS LISTS ..................................................................... 19
WIRING DIAGRAMS ................................................................ 23
SERVICE LOG ..................................................................... 25
REFERENCES ..................................................................... 25
WARRANTY ....................................................................... 26
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Equipment Description
OM/SM-TDB/7
The Groen TDB/7 is a table top, tilting, steam
jacketed kettle with a thermostatically controlled,
self-contained, electrically-heated steam supply
and appropriate controls, mounted on a sturdy
base. The Model TDB/7 is available in 20 or 40 quart capacity.
The body of the TDB/7 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. A tilt handle
allows the operator to manually tilt the kettle
body in a controlled manner. Pouring height
accepts pans up to 4 inches high on a table top.
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
295°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 highlimit 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 or 480 volt power. All kettles are wired
for three-phase operation. For single-phase
conversion, see the wiring diagrams in this
manual.
KETTLE CHARACTERISTICS
TDB/7-20+ TDB/7-40
Kettle Capacity 20 qts. 18.8 liters 40 qts. 37.6 liters
Jacket Capacity 4 qts. 3.7 liters 5 qts. 4.7 liters
Diameter 14” 36 cm 16-1/2” 42 cm
Depth 11” 28 cm 14-1/4” 36 cm
K.W. at 208 V 6.3 10.8
K.W. at 240 V 8.4 14.4
K.W. at 480 V 6.3 12.0
Base Width 24” 60 cm 24” 60 cm
Base Depth 16” 41 cm 16” 41 cm
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OM/SM-TDB/7
Current Models
Optional equipment available with any model:
1. Stand that supports the unit and holds a pan in position for filling
2. Lift-off cover
3. Basket insert
4. Fill faucet
5. Manual stirrers
6. Motor driven agitator
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Inspection & Unpacking
OM/SM-TDB/7
The unit will arrive in a heavy shipping carton
and will be attached to a skid. Immediately upon
receipt, inspect the carton carefully for exterior
damage.
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.
Carefully cut the 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.
CAUTION
THIS UNIT WEIGHS 140 TO 163 LB. (64 TO
74 KG). INSTALLER SHOULD OBTAIN
HELP AS NEEDED TO LIFT THIS WEIGHT
SAFELY.
When installation is to begin, carefully cut the
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.
Attach the tilt handle (normally shipped inside
the kettle) by carefully threading it into the socket
on the trunnion support. Be careful to avoid
cross-threading fine socket threads.
The TDB/7 is shipped from the factory strapped on a
pallet. The tilt handle is inside the kettle.
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OM/SM-TDB/7
Installation
The Groen Kettle is provided with
complete internal wiring. It is
ready for immediate connection. A
wiring diagram is provided in this
manual and on the inside of the
control housing service panel. Any
mechanical or electrical changes must be
approved in by Groen’s Food Service
Engineering Department.
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.
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. The
base should be securely fastened to a
table or work surface. Four 3/8”-16 N.C.
threaded couplings are provided in the
base of unit. Installation under a ventilation
hood is recommended.
2. Provide electrical power as specified on
the electrical information plate attached to
the equipment. Observe local codes
and/or The National Electrical Code in
accordance with ANSI/NFPA 70 - (current
edition).
3. The equipment is shipped ready for
three phase operation. Refer to the
wiring diagram for single phase
operation.
4. Bringing the electrical service through
the entrance at the rear of the support
housing, making a watertight connection
with the incoming lines. (A BX
connection is not recommended.)
DANGER
ELECTRICALLY GROUND THE UNIT AT
THE TERMINAL PROVIDED. FAILURE TO
GROUND UNIT COULD RESULT IN
ELECTROCUTION AND DEATH.
5. Confirm that the jacket water level is
above mid point of sight glass. If the
level is low, follow the instructions under
“Jacket Filling and Water Treatment” in
the “Maintenance” section of the
manual.
6. The open end of the elbow on the outlet
of the safety valve must be directed
downward on old models. If it is not, turn
the elbow to the correct position. On new
models the safety valve points down.
7. Any mechanical or electrical change
must be approved by the Groen Food
Service Engineering Department.
TDB/7 ELECTRICAL SPECIFICATIONS
20 QUARTS 40 QUARTS
VOLTAGE PHASE KW AMPS KW AMPS
208 1 6.3 31 10.8 52
208 3 6.3 18 10.8 30
240 1 8.4 35 14.4 60
240 3 8.4 20 14.4 35
480 1 6.3 13 12.0 25
480 3 6.3 8 12.0 15
400 3 7.8 11.2 13.2 19
TDB/7 SUPPLY WIRE REQUIREMENTS
Copper only, THHN (90°C)
20 QUARTS 40 QUARTS
VOLTAGE PHASE AWG mm AWG mm
208 1
3
240 1
3
480 1
3
400 3 — 1.8 —
8
12——
8
3.0
10
—
1414——10
8
12
6
—
8
—
4
3.5
8
—
2.5
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OM/SM-TDB/7
Initial Start-Up
IMPORTANT:
BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW THE OPERATING
INSTRUCTIONS, CAUTIONS, AND SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL.
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. Turn on the electrical service to the unit.
3. Pour 1-2 quarts of water into the kettle.
WARNI NG
AVOID ALL DIRECT CONTACT WITH HOT
SURFACES. DIRECT SKIN CONTACT
COULD RESULT IN SEVERE BURNS.
4. 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.
AVOID ALL DIRECT CONTACT WITH HOT
FOOD OR WATER IN THE KETTLE.
DIRECT CONTACT COULD RESULT IN
SEVERE BURNS.
5. 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
intended, contact your local Groen Certified
Service Agency.
A simple turn of the thermostat controls the Groen TBD/7 Kettle
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OM/SM-TDB/7
The operator controls kettle heating with the
thermostat dial. The dial turns heating element
electric power on or off and sets the operating
temperature of the kettle.
A. To Start Kettle
1. EVERY DAY make sure that the jacket
water level is above the mid-point of the
round sight glass. If the level is too low,
Operation
see “Jacket Filling and Water Treatment”
on page 13 of this manual.
2. 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
13 of this manual.
3. Turn on the electrical power to the unit.
4. Turn the thermostat dial to the desired
setting. The heating indicator light
indicates that the kettle is heating, and
cycling of the light on and off indicates
that 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.
B. To Transfer Product or Empty Kettle:
The kettle is designed and manufactured to
be tilted in a controlled manner. Grasp the
insulated plastic ball firmly. Maintain a firm
grip on handle when tilting, while keeping
kettle body in a tilted position and when
SLOWLY returning the kettle body to an
upright position.
On most TDB/7 units the jacket water level is
shown in a sight glass, right on the 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.
TAKE SPECIAL CARE TO AVOID CONTACT
WITH HOT KETTLE BODY OR HOT
PRODUCT, WHEN ADDING INGREDIENTS,
STIRRING OR TRANSFERRING PRODUCT
TO ANOTHER CONTAINER.
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.
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WARNING
WHEN TILTING KETTLE FOR PRODUCT
TRANSFER:
1) WEAR PROTECTIVE OVEN MITT AND
PROTECTIVE 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
(DEPENDING ON HANDLE PLACEMENT)
WHILE POURING — NOT DIRECTLY IN
POUR PATH OF HOT CONTENTS.
5) POUR SLOWLY, MAINTAIN CONTROL
OF KETTLE BODY HANDLE 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.
OM/SM-TDB/7
When putting the cover on the kettle, position
it on top of kettle rim, with its flat edge facing
the pouring lip.
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.
CAUTION
KEEP FLOORS IN FRONT OF THE KETTLE
WORK AREA CLEAN AND DRY. IF SPILLS
OCCUR, CLEAN AT ONCE TO AVOID
SLIPS OR FALLS.
Common Accessories
1. Lift Off Cover
As with stock pot cooking, an optional lift off
cover can speed up the heating of water and
food products. A cover helps retain heat in
the cooking vessel and reduces the amount
of heat and humidity released into the
kitchen. Use of a cover can reduce some
product cook times and help maintain the
temperature, color and texture of products
being held or simmered for extended
periods.
Make sure the plastic ball handle is secure
on the lift off cover before using. ALWAYS
use the plastic handle to place or remove
cover from the kettle. Wear protective oven
mitts and a protective apron.
Lift the rear edge of the cover first.
When removing cover:
a) Firmly grasp plastic handle
b) Lift rear edge (farthest from operator) 1-
2” (3-5 cm) to allow any steam and
water vapor to escape the cooking
vessel. Wait 2-3 seconds.
c) Tilt cover to 45-60° angle and allow any
hot condensate or product to roll off
cover back into kettle.
d) Remove cover, ensuring that any
remaining hot condensate or product
does not drip on operator, floor or work
surfaces.
e) Place cover on safe, flat, sanitary, out-
of-the-way surface, or return to kettle
rim.
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OM/SM-TDB/7
CAUTION
DO NOT TILT KETTLE BODY WITH COVER
IN PLACE. COVER MAY SLIDE OFF,
CAUSING INJURY TO OPERATOR.
2. Basket Insert
An optional kettle basket insert can assist in
cooking water-boiled products including
eggs, potatoes, vegetables, shell fish, pasta
and rice. The nylon mesh liner must be used
when cooking product smaller than the mesh
size of the basket, which is approximately
1/4” (6 mm). This includes rice and small
pasta shapes.
Tips For Use.
a) Allow for the water displacement of the
basket and product to be cooked. This
may mean only filling the kettle half full
of water. Test the basket and product
displacement with the kettle OFF, and
with cold water in the kettle.
CAUTION
DO NOT OVERFILL 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.
b) Load basket on a level, stable work
surface.
c) Lift the loaded basket with both hands.
Get help from another person if the
basket is too heavy for safe handling.
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.
d) Slowly lower product into kettle.
e) When removing basket with cooked
product, lift basket straight up, ensuring
bottom of basket clears the rim and
pouring lip of the kettle. Wear protective
oven mitts and protective apron.
f) Allow hot water to fully drain from
product, before moving basket away
from the kettle. Do not rest kettle basket
on kettle rim or pouring lip. If basket is
too heavy for individual to lift and safely
move, get help from another person.
Remove product immediately from
basket into another container, being
sure to avoid contact with hot product
and hot basket or. .
h) Place basket with food on stable, flat
surface, setting it inside a solid steamer
or bake pan, to catch any remaining hot
water draining from product.
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.
In the event that the jacket water level gets too
low and the heating elements overheat, the highlimit control will open and shut off power to the
elements until the kettle cools. Setting the
operating thermostat dial to “OFF” shuts down all
control and heating circuits.
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OM/SM-TDB/7
Maintenance
NOTICE: Contact Groen or an authorized Groen representative when repairs are required.
1. Periodic Maintenance
A Maintenance & Service Log is provided at
the back of this manual with the warranty
information. Each time maintenance is
performed on your Groen 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]
a. 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.”
If the lever does not activate, or there is no
evidence of discharge, or the valve leaks,
immediately discontinue use of the kettle
and contact a qualified Groen service
representative.
WARNING
WHEN TESTING, AVOID ANY EXPOSURE
TO THE STEAM BLOWING OUT OF THE
SAFETY VALVE. DIRECT CONTACT
COULD RESULT IN SEVERE BURNS.
DISCONNECT ELECTRICAL POWER
FROM THE KETTLE BEFORE
ATTEMPTING TO GREASE THE
TRUNNION BEARINGS.
At least twice a year, grease the two trunnion
bearings. The bearings are located within
the kettle support housing. Remove the
access panels from the support housing with
a screwdriver to gain access to the grease
fittings. Use a lithium-based, multi-purpose
grease. When the access panels are
removed, the mounting bolts for the trunnion
bearings and tilt switch can also be checked
for tightness. When finished, reassemble
access panels to support housing.
The pressure gauge should show a vacuum
of 20 to 30 inches when the kettle is cold.
b. Also check the jacket water level on a
daily basis. It should be above mid point
of round sight glass. If the level is low,
see “Jacket Filling and Water
Treatment” on page 14.
[BY SERVICE TECHNICIAN]
c. Electrical wiring should be kept securely
connected and in good condition.
d. The inside of the support housing should
be kept clean.
Test the safety valve at least twice each
month. Test the valve with the kettle
operating at 15 psi (105 kPa), by holding the
test lever for at least 5 seconds. Then
release the lever and let the valve snap shut.
2. Jacket Vacuum
When the kettle is cold, a positive pressure
reading or a reading around zero on the
pressure/vacuum gauge indicates the
presence of air in the jacket. Air in the jacket
slows down the heating of the kettle.
To remove air:
a. Start the unit. (See the “Operation”
section of this manual.) (Be sure there is
water or product in the kettle when
heating).
b. When the pressure/vacuum gauge
reaches a positive pressure reading of 5
PSI, release the trapped air and steam
by pulling up or out on the safety valve
lever or ring for about 1 second. Repeat
this step, then let the pull ring or valve
lever snap back into the closed position.
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OM/SM-TDB/7
3. Jacket Filling and Water Treatment
The jacket was charged at the factory with
the proper amount of treated water. You may
need to restore the water to its proper level,
either because water was lost as steam
during venting or because treated water was
lost by draining.
IMPORTANT
Pressure gauge must read 0 PSI or less
before you fill jacket with water.
To fill jacket with water (Obtain water
treatment compound and a pH test kit from
your authorized Groen Parts Dealer).:
a. 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 step 4, “Water Treatment Procedure”.
b. Remove fill plug with open-end wrench
or crescent wrench.
c. Open shutoff valve (turn handle 90° on
ball valve).
d. Use a funnel and add water to jacket.
e. Check water level in jacket, by viewing
water level indicator glass.
f. Continue to add water until the water
level indicator glass is 3/4 full.
g. Close shutoff valve, and install fill plug.
Follow procedure in “Jacket Vacuum” to
remove air from kettle jacket.
b. Water Treatment Procedure
use an electroanalytical instrument to
measure the pH level or have a person
that is not color blind read the test strip
color level.
e. Record the exact amounts of water and
treatment compound used. These
amounts may be used again, if the same
sources of water and compound are
employed to refill the jacket in the future.
However, it is advisable to check the pH
every time treated water is prepared.
Model Kettle
Capacity
TDB/7-20 20 quarts 4 quarts
TDB/7-40 40 quarts 5 quarts
5. Component Replacement
WARNING
BEFORE REPLACING ANY PARTS,
DISCONNECT THE UNIT FROM THE
ELECTRIC POWER SUPPLY.
All internal wiring is marked as shown on the
circuit schematic drawings. Be sure that new
components are wired in the same manner
as the old components.
Jacket
Capacity
WARNING
TO AVOID INJURY, READ AND FOLLOW
ALL PRECAUTIONS STATED ON THE
LABEL OF THE WATER TREATMENT
COMPOUND.
a. Fill the mixing container with the
measured amount of water required.
(See the table at right). Distilled water is
recommended.
b. 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.
c. Measure the water treatment compound
you will be using. (One way to do this is
to add the compound from a measuring
cup.)
d. 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 color of the
test strip with the color chart provided in
the pH test kit. Color blind people
mixing the treated water solution must
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OM/SM-TDB/7
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OM/SM-TDB/7
Cleaning
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.
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.
WARNING
KEEP WATER AND SOLUTIONS AWAY
FROM CONTROLS AND ELECTRICAL
EQUIPMENT. NEVER SPRAY THE
SUPPORT HOUSING OR ELECTRICAL
CONNECTIONS.
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
Scrapers or steel wool can harm the kettle
surface.
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
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.
WARNING
AVOID ANY DIRECT CONTACT WITH HOT
SURFACES. DIRECT SKIN CONTACT
COULD RESULT IN SEVERE BURNS.
Use only a sponge, cloth or plastic brush to
clean the kettle.
supplier. Clean the unit thoroughly. A
cloth moistened with cleaning solution
can be used to clean controls, housings,
and electrical conduits.
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 rubber 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
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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.
g. The outside of the unit may be polished
with a stainless steel cleaner such as
“Zepper” from Zep Manufacturing Co.
h.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.
NOTICE
NEVER LEAVE A CHLORINE SANITIZER IN
CONTACT WITH STAINLESS STEEL
SURFACES LONGER THAN 30 MINUTES.
LONGER CONTACT CAN CAUSE
STAINING AND CORROSION.
OM/SM-TDB/7
i. It is recommended that each piece of
equipment be sanitized just before use.
i. 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, like Groen Delimer/Descaler (Part
Number 114800) or Lime-Away from
Ecolab, in accordance with the
manufacturer’s directions. Rinse and
drain the unit before further use.
j. If cleaning problems persist, contact
your cleaning product representative for
assistance. The supplier has a trained
technical staff with laboratory facilities to
serve you.
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OM/SM-TDB/7
Troubleshooting
Your Groen 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. 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 GROEN OR THEIR
AUTHORIZED DISTRIBUTORS CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE
EQUIPMENT AND WILL VOID ALL WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
Xindicates items which must be performed by an authorized technician.
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
Kettle stops heating before it reaches the
desired temperature.
Kettle heats slowly User a. For air in the jacket. See “Jacket Vacuum” in
Safety valve pops. User a. For air in the jacket. See “Jacket Vacuum” in
User a. Electric power supply to the unit.
b. Water level in jacket.
Auth
Service
Rep Only
Auth
Service
Rep Only
User a. Thermostat dial setting.
Auth
Service
Rep Only
User a. Thermostat dial setting.
Auth
Service
Rep Only
Auth
Service
Rep Only
Auth
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
a. Contactor. X
b. Heater elements with ohmmeter for ground
short or open element. If element is defective,
call Groen. 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
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
the “Maintenance” section of this manual.
b. Heater elements with ohmmeter for ground
short or open element. If an element is
defective, call Groen. X
c. Voltage of main power source. X
the “Maintenance” section of this manual.
b. Pressure switch setting. X
c. Thermostat operation. Thermostat should click
when the dial is rotated above and below the
setting for the temperature of the kettle. X
d. Safety valve. If the valve pops at pressures
below 49 PSI, replace it. X
e. Contactor, to determine whether it is de-
energized. X
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Replacement Kettle Body Parts List
OM/SM-TDB/7
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OM/SM-TDB/7
Replacement Mechanical Parts List
20
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Replacement Electrical Parts List
OM/SM-TDB/7
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OM/SM-TDB/7
Parts List
To order parts, contact your Groen Certified Service Agency. Supply the model designation, part
description, part number, quantity, and, where applicable, voltage and phase.
Key Description Part No. Key Description Part No.
1 Pedestal Cover 003137 30 Insulator Board 003490
2 Pedestal Weldment 002990 31 Tilt Switch Bracket 002982
3 Pillow Block 002989 32 Hex Nut #4-40 003121
4 Set Collar 003118 33 Terminal Block 088214
5 Set Screw 5/8” LG 003440 34 Screw #6-32 X ½” LG 012603
6 Grommet 003492 35 Pilot Lamp 016028
7 Electrical Mounting Bracket 086873 36 Bullseye Sightglass 108554
8 Bolt ½-13 X 3-½ “ LG 003285 37 Thermostat Knob 002868
9 Bolt 3/8 - 16 X 1-½” LG 005703 38 Thermostat 012313
10 Pedestal Cladding 208/240 Volt 003147 39 Water Level Probe 015589
10A Cover Plate 480 Volt Fuse Holders 088212 40 Bottom Cover 003141
11 Hex Nut 3/8 - 16 008214 41 Hex Nut 1/4-20 012940
12 Pedestal Cover 003139 42 Pressure Switch 096963
13 Bumper TDB/7-20 101560 43 Hex Reducing Bushing½NPTx1/4 NPT 008739
13A Bumper TDB/7-40 003268 44 Elbow Assembly 101543
14 Base Assembly 054174 45 Bottom Cover Bracket 002916
15 Hex Nut ½-13 005705 46 Screw #6-32 X 3/8” LG Round Head 009697
16 Bolt ½-13 X 3/4” LG 005070 47 Thermostat Adapter 107172
17 Weldment Spacer 003146 48 Gasket Bottom Cover 007937
18 Sheet Metal Screw #8 Truss Hd. 005002 49 Safety Valve 097005
19 Screw #8-32 X 1-1/4” LG 005056 50 Pressure Gauge 084208
20 Contactor 013369 50A Pressure Gauge Lens 087635
21 Screw #8-32 X 3/8” LG 006971 51 Water Fill Assembly 101528
22 Transformer 480 Volt 086876 52 Kettle Body Wire Harness 096938
22A Fuse 480 Volt Only 086881 53 Handle Assembly 012695
23 Fuse Holder 002944 53A Ball Knob 012691
24 Fuse 002945 53B Tolerance Ring 012692
25 Screw #8-32 X 3/4” LG. 012656 53C Handle Rod 013597
26 Water Level Control Board 096925 x Nickel Plt Heating Element Nut 084202
27 Set Screw ½” LG 003117 x Nickel Plt Heating Element Screw 084201
28 Tilt Screw 002982 x Line Side Harness 088210
29 Screw #4-40 X 3/4” LG 003122
X - Not Shown
22
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Wiring Diagrams
TDB/7-20, TDB/7-40
208/240 Volt, 1 and 3 Phase
23
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Wiring Diagrams
TDB/7-20, TDB/7-40
480 VOLT, 1 & 3 PHASE
24
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Service Log
Model No. _______________________________ Purchased From _________________________
Serial No. _______________________________ Location ________________________________
Date Purchased __________________________ Date Installed ___________________________
Purchase Order No. ______________________ For Service Call __________________________
Date Service Performed Performed By
References
KLENZADE SALES CENTER ECOLAB. Inc.
370 Wabasha
St. Paul, Minnesota 55102
800/352-5326 or 612/293-2233
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Quincy, Massachusetts 02269
NFPA/54 - Installation of Gas Appliances & Gas
Piping
NFPA/70 - The National Electrical Code
NATIONAL SANITATION FOUNDATION
3475 Plymouth Rd.
Ann Arbor, Michigan 48106
UNDERWRITERS LABORATORIES, INC.
333 Pfingsten Road
Northbrook, Illinois 60062
ZEP MANUFACTURING CO.
1310-T Seaboard Industrial Blvd.
Atlanta, Georgia 30318
25
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Limited Warranty
To Commercial Purchasers *
(Domestic U.S., Hawaii &
Canadian Sales Only)
Groen Foodservice Equipment ("Groen Equipment") has been skillfully manufactured, carefully inspected
and packaged to meet rigid standards of excellence. Groen warrants its Equipment to be free from defects
in material and workmanship for (12) twelve months with the following conditions and subject to the
following limitations.
I. This parts and labor warranty is limited to Groen Equipment sold to the original commercial
purchaser/users (but not original equipment manufacturers), at its original place of installation in
the continental United States, Hawaii and Canada.
II. Damage during shipment is to be reported to the carrier, is not covered under this warranty, and is
the sole responsibility of purchaser/user.
III. Groen, or an authorized service representative, will repair or replace, at Groen's sole election, any
Groen Equipment, including but not limited to, drawoff valves, safety valves, gas and electric
components, found to be defective during the warranty period. As to warranty service in the
territory described above, Groen will absorb labor and portal to portal transportation costs (time &
mileage) for the first twelve (12) months from date of installation or fifteen (15) months from date
of shipment from Groen.
IV. This warranty does not cover boiler maintenance, calibration, periodic adjustments as specified in
operating instructions or manuals, and consumable parts such as scraper blades, gaskets,
packing, etc., or labor costs incurred for removal of adjacent equipment or objects to gain access
to Groen Equipment. This warranty does not cover defects caused by improper installation, abuse,
careless operation, or improper maintenance of equipment. This warranty does not cover damage
caused by poor water quality or improper boiler maintenance.
V. THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE, EACH OF WHICH IS HEREBY EXPRESSLY
DISCLAIMED. THE REMEDIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN NO EVENT
SHALL GROEN BE LIABLE FOR SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES
FOR THE BREACH OR DELAY IN PERFORMANCE OF THIS WARRANTY.
VI. Groen Equipment is for commercial use only. If sold as a component of another (O.E.M.)
manufacturer's equipment, or if used as a consumer product, such Equipment is sold AS IS and
without any warranty.
* (Covers All Foodservice Equipment Ordered After October 1, 1995)
26
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1055 Mendell David Drive
Jackson, MS 39272
Telephone 601 373-3903
Fax 601 373-9587
OM/SM-TDB/7 (Revised 01/00)
Part Number 121062
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