Groen TDH/C Operation Manual

ii IMPORTANT INFORMATION IMPORTANT INFORMATIONiiKEEP FOR OPERATORKEEP FOR OPERATORiiIMPORTANT INFORMATIONIMPORTANT INFORMATION i

OPERATOR MANUAL OM-TDH/C

Part Number 121049 DOMESTIC

Model: TDH/C
Steam Jacketed Kettle

Self-contained
Gas heated
Table Top Mounted
Crank-Tilting

GAS

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-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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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-TDH/C

Equipment Description

Groen Model TDH/C is a stainless steel, steam- Controls for the unit include a crank tilt handwheel,
jacketed, table top mounted, crank-tilting kettle with thermostat, pressure gauge, safety valve, low water
a self-contained, gas heated steam source. The cut-off, On/Off switch, gas regulator valve, and
kettle body is welded into one solid piece and water level sight glass.
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 295 F.

o

KETTLE CHARACTERISTICS

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

Dimensions

Model 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. 4. Water fill swing faucet.

2. Basket insert. 5. Mirror Image (Crank on the Left)

3. Stand that supports the unit and holds a pan 6. 316 stainless steel interior
in position for filling.

Kettle Jacket Kettle Body Kettle Body

Capacity Capacity Diameter Depth

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OM-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 To remove the kettle from the box, cut any straps from
strapped on a skid and in a heavy carton. Inspect around the box. Detach the box sides from the skid.
the carton carefully for damage. Open the container Pull the box up off the unit, taking care to avoid
and check the unit for hidden damage. Report damage or injury from any staples left in the box walls.
shipping damage or shipment errors to the delivery When installation is to begin, cut the straps holding the
agent. kettle on the skid, and lift the kettle straight up off the

skid. Examine the packing materials to make sure no

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.

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.

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.

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-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 system during any pressure testing of the gas
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.

6. The appliance and its individual shutoff valve must
be disconnected from the gas supply piping

supply system 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

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.

Correct water level

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OM-TDH/C

Water Treatment in the Maintenance section of this 3. Make sure the supplies of gas and electric
manual.

power are on.

11. Check to be sure that the open end of the elbow on
the outlet of the safety valve is directed downward. in the Operation section of this manual. Begin
Be sure to read and follow the instructions on the heating the water at the highest thermostat
attached safety valve tag. setting. The indicator light should come on and

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.

4. Follow the “To Start Kettle Heating” instructions

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-TDH/C

Operation

WARNING
ANY POTENTIAL USER OF THE EQUIPMENT MUST BE TRAINED IN SAFE AND CORRECT OPERATING
PROCEDURES

A. Controls 1. To Start Kettle

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.

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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