Groen TDH-C-20-NA Service Manual
P IMPORTANT INFORMATION P KEEP FOR OPERATOR P IMPORTANT INFORMATION P
OPERATOR & SERVICE MANUAL OM/SM-TDH/C
Part Number 121064 NORTH AMERICA
Model: TDH/C
Steam Jacketed Kettle
Self-contained
Gas heated
Table Top Mounted
Crank-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.
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.
OM/SM-TDH/C
IMPORTANT — READ FIRST — IMPORTANT
WARNING: FAILURE TO DISCONNECT POWER BEFORE SERVICING COULD RESULT IN
ELECTROCUTION AND DEATH.
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.
WARNING: THE UNIT MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY
AND PLUMBING. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE
CODES.
WARNING: DO NOT ATTACH THE UNIT TO A TYPE “B” VENT. IT COULD CAUSE FIRE OR PROPERTY
DAMAGE.
WARNING: DO NOT CONNECT ANY PIPING TO THE SAFETY VALVE. IT MUST BE FREE TO VENT
STEAM AS NEEDED. TO AVOID BURNS FROM THE VENTED STEAM THE VALVE
DISCHARGE SHOULD POINT DOWNWARD.
DANGER: ELECTRICALLY GROUND THE UNIT AT THE TERMINAL PROVIDED. FAILURE TO GROUND
THE UNIT COULD RESULT IN ELECTROCUTION AND DEATH.
CAUTION: BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW THE OPERATING
INSTRUCTIONS, CAUTIONS AND SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL.
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 TRANSFER OF PRODUCT.
CAUTION: KEEP FLOORS IN FRONT OF KETTLE WORK AREA CLEAN AND DRY. IF SPILLS OCCUR,
CLEAN IMMEDIATELY TO AVOID SLIPS OR FALLS.
WARNING: KEEP WATER AND SOLUTIONS OUT OF CONTROLS AND BURNERS. NEVER SPRAY OR
HOSE DOWN THE CONTROL CONSOLE, ELECTRICAL CONNECTIONS, ETC.
CAUTION: MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS MEMBRANES AND
CLOTHING. TAKE PRECAUTIONS: WEAR RUBBER GLOVES, GOGGLES OR FACE SHIELD
AND PROTECTIVE CLOTHING. CAREFULLY READ WARNINGS AND FOLLOW DIRECTIONS
ON CLEANER LABELS .
WARNING: DO NOT STAND ON 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.
NOTICE: NEVER LEAVE A SANITIZER IN CONTACT WITH STAINLESS STEEL SURFACES LONGER
THAN 10 MINUTES. LONGER CONTACT CAN CAUSE CORROSION.
WARNING: FAILURE TO PERIODICALLY CHECK SAFETY VALVE OPERATION COULD RESULT IN
PERSONAL INJURY AND/OR DAMAGE TO EQUIPMENT.
WARNING: WHEN TESTING, AVOID 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 AND CLOSE THE MAIN GAS VALVE. ALLOW FIVE MINUTES FOR GAS TO VENT.
CAUTION: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR
AUTHORIZED DISTRIBUTORS CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO
THE EQUIPMENT AND WILL VOID ALL WARRANTIES.
WARNING: KEEP AREA AROUND KETTLE FREE AND CLEAR OF ALL COMBUSTIBLE MATERIALS.
FAILURE TO DO SO COULD RESULT IN FIRE OR PROPERTY DAMAGE.
CAUTION: HEATING AN EMPTY KETTLE MAY CAUSE THE RELEASE OF STEAM FROM THE SAFETY
VALVE.
Important: Service Performed by Other than Factory Authorized Personnel Will Void All Warranties.
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OM/SM-TDH/C
Table of Contents
IMPORTANT OPERATOR WARNINGS .........................................2
EQUIPMENT DESCRIPTION ..................................................4
INSPECTION & UNPACKING .................................................5
INSTALLATION & INITIAL START-UP ..........................................6
OPERATION ..............................................................8
CLEANING ...............................................................11
MAINTENANCE ...........................................................12
SEQUENCE OF OPERATION ................................................14
TROUBLESHOOTING .....................................................14
PARTS LISTS .............................................................16
SCHEMATIC .............................................................20
SERVICE LOG ............................................................21
REFERENCES ............................................................22
WARRANTY ..............................................................23
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OM/SM-TDH/C
Equipment Description
Groen Model TDH/C is a stainless steel, steamjacketed, table top mounted, crank-tilting kettle with
a self-contained, gas heated steam source. The
kettle body is welded into one solid piece and
furnished with a reinforced rim and welded-in
"butterfly" shaped pouring lip. The interior of the
kettle is polished to a 180 emery grit finish, and the
exterior is given a bright high buff finish. The unit is
A.S.M.E. shop inspected and registered with the
National Board for working pressures up to 50 PSI.
The self-contained steam source is heated by
propane, butane, or natural gas and is equipped with
electronic ignition. Charged at the factory with
chemically pure water containing rust inhibitors, the
steam source provides kettle temperatures of 150ºF
to approximately 295oF.
KETTLE CHARACTERISTICS
Dimensions
Model
Kettle
Capacity
Jacket
Capacity
Kettle Body
Diameter
Controls for the unit include a crank tilt handwheel,
thermostat, pressure gauge, safety valve, low water
cut-off, On/Off switch, gas regulator valve, and water
level sight glass.
The gas supply shuts off automatically when the
kettle is tilted.
The unit must be specified for use with natural gas,
propane, butane, or a stated propane/butane
mixture. Service connections are required for gas
and 115V electricity.
Firing Rate, BTU / Hour
TDH/C-20 TDH/C-40
31,000 BTU/hr 52,000 BTU/hr
Kettle Body
Depth
Base Width Base Depth
TDH/C-20 20 Qt 18.9 R 6 Qt 5.7 R 14" 356 mm 11" 279 mm 28" 711 mm 24" 610 mm
TDH/C-40 40 Qt. 37.8 R 8 Qt 7.6 R 16½ 419 mm 14½” 362 mm 28" 711 mm 26¾” 679 mm
Options available include:
1. One-piece, lift-off cover.
2. Basket insert.
3. Stand that supports the unit and holds a pan
in position for filling.
4. Water fill swing faucet.
5. Mirror Image (Crank on the Left)
6. 316 stainless steel interior
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OM/SM-TDH/C
Inspection & Unpacking
WARNING
THIS UNIT MUST BE INSTALLED BY PERSONNEL WHO ARE QUALIFIED TO WORK WITH ELECTRICITY
AND PLUMBING. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO
THE EQUIPMENT. THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH APPLICABLE CODES.
The unit arrives completely assembled. The unit is
strapped on a skid and in a heavy carton. Inspect
the carton carefully for damage. Open the container
and check the unit for hidden damage. Report
shipping damage or shipment errors to the delivery
agent.
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.
Write down the model number, serial number, and
installation date for your unit at the top of the
Maintenance and Service Log on Page 21. Keep this
manual with the unit.
To remove the kettle from the box, cut any straps from
around the box. Detach the box sides from the skid.
Pull the box up off the unit, taking care to avoid damage
or injury from any staples left in the box walls. When
installation is to begin, cut the straps holding the kettle
on the skid, and lift the kettle straight up off the skid.
Examine the packing materials to make sure no loose
parts are discarded with the materials.
CAUTION
UNIT WEIGHS FROM 215 LBS. (98 KG) TO 240
LBS. (109 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.
The TDH/C is shipped from the factory strapped on a
pallet.
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OM/SM-TDH/C
WARNING
THE KETTLE MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND
PLUMBING. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE
EQUIPMENT.
Installation and Initial Start-Up
A. Installation
The TDH/C kettle should be installed in a ventilated room
for efficient performance. Items which might obstruct or
restrict the flow of air for combustion and ventilation must
be removed. The area directly around the appliance
must be cleared of any combustible material.
1. Installation on combustible floors is allowed. The
unit requires a minimum clearance to combustible
and noncombustible construction of six inches at the
rear and six inches at the sides.
2. Groen recommends installation of the unit under a
vent hood. The base must be fastened to the
working surface.
3. Complete the piping to the gas service main using ½
inch IPS pipe or an approved equivalent.
WARNING
THIS UNIT IS FOR COMMERCIAL USE. DO NOT
USE HOME OR RESIDENTIAL GRADE GAS
CONNECTIONS. THEY DO NOT MEET GAS CODES
AND COULD BE HAZARDOUS.
4. Provide 115 VAC, 60 cycle, 1 phase, 1 AMP electric
service. Local codes and/or The National Electrical
Code should be observed in accordance with
ANSI/NFPA-70 latest edition. AN ELECTRICAL
GROUND IS REQUIRED. The electrical schematic
is located on the inside of the service panel, and at
the rear of this manual. In Canada provide electric
service in accordance with the Canadian Electrical
Code, C.S.A.-C22.1 Part 1 and/or local codes.
at test pressures that exceed ½ PSIG (3.45
kPa). The kettle must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure testing
of that system at test pressures which equal or
are less than ½ PSIG (3.45 kPa).
7. Adequate space for proper servicing and
operation is required. DO NOT block any air
intake spacings to the combustion chamber or
obstruct air flow.
8. After the kettle has been connected to the gas
supply, check all gas joints for leaks. A thick
soap solution or other suitable leak detector
should be used. Do not use flame when
checking the leaks.
9. Once the unit is anchored to a mounting surface,
Apply a small bead of silicone caulk around the
perimeter of the kettle base.
10. Make sure the water level is correct in the jacket,
by confirming that the level is near the middle of
the sight glass. If the water level is low, follow
the instructions in Jacket Filling and Water
Treatment in the Maintenance section of this
manual.
11. Check to be sure that the open end of the elbow
5. The installation must conform with local codes or the
American National Standards Z223.1 - latest edition
National Fuel Gas Code. The kettle should be
installed in an adequately ventilated room with
provision for adequate air supply. the best ventilation
will employ a vent hood and exhaust fan with no
direct connection between the vent duct and the
kettle flue. DO NOT obstruct the flue or vent duct
after installation. In Canada, the installation must
conform to CAN/CGA B149 Installation Codes for
Gas Burning Appliances and Equipment and/or local
codes.
6. The appliance and its individual shutoff valve must
be disconnected from the gas supply piping system
during any pressure testing of the gas supply system
Correct water level
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OM/SM-TDH/C
on the outlet of the safety valve is directed
downward. Be sure to read and follow the
instructions on the attached safety valve tag.
B. Initial Start-Up
IMPORTANT:
BE SURE ALL OPERATORS READ, UNDERSTAND
AND FOLLOW THE OPERATING INSTRUCTIONS,
CAUTIONS, AND SAFETY INSTRUCTIONS
CONTAINED IN THIS MANUAL.
After the kettle has been installed, the installer should
test to ensure that it is operating correctly.
1. Remove literature and packing materials from inside
and outside of the unit.
2. Put on or two inches of water into the kettle.
3. Make sure the supplies of gas and electric power
are on.
4. Follow the “To Start Kettle Heating” instructions
in the Operation section of this manual. Begin
heating the water at the highest thermostat
setting. The indicator light should come on and
heating should continue until the water boils.
5. To turn off the unit, follow “To Stop Kettle
Heating” in the Operation Section of this manul..
If the kettle functions as described, it is ready for
use. If the unit does not operate as designed,
contact authorized Groen Service Agent.
Make sure that the open end of the elbow on the
pressure safety valve is directed downward.
WARNING
DO NOT STAND ON 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.
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OM/SM-TDH/C
Operation
WARNING
ANY POTENTIAL USER OF THE EQUIPMENT MUST BE TRAINED IN SAFE AND CORRECT OPERATING
PROCEDURES
A. Controls
Operator controls for the TDH/C kettle are:
1. Manual gas valve which controls the supply of gas
from the main to the unit.
2. On-Off (toggle) switch. This switch turns the control
circuit power supply on or off.
3. Thermostat dial, which turns the thermostat on or off,
and sets the kettle operating temperature.
4. Crank tilt handwheel which controls kettle movement.
B. Operating Instructions
WARNING
KEEP AREA AROUND KETTLE FREE AND CLEAR OF
ALL COMBUSTIBLE MATERIALS. .DO NOT ATTEMPT
TO LIGHT ANY BURNER WITH A FLAME.
CAUTION
HEATING AN EMPTY KETTLE MAY CAUSE THE
RELEASE OF STEAM FROM THE SAFETY VALVE.
1. To Start Kettle
a. CHECK THE WATER LEVEL IN THE
JACKET EVERY DAY. The level should be
at the middle of the sight glass. If the water
level is low, see Jacket Filling in the
Maintenance section of this manual.
b. Check the pressure/vacuum gauge. If the
gauge does not show 20 to 30 inches of
vacuum (i.e. a reading of 20 to 30 below
zero), see Jacket Vacuum in the
Maintenance section of this manual.
c. DO NOT attempt to light any burner with a
flame.
d. Open the main supply gas valve (handle in
line with the pipe).
e. Turn the toggle switch to ON.
f. Turn the thermostat to the desired setting.
The TDH/C is shown on the optional TS/9 stand.
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