Page 1
OPERATOR MANUAL
IMPORTANT INFORMATION, KEEP FOR OPERATOR
This manual provides information for:
MODELS DH/DHT Domestic
STEAM JACKETED
KETTLE WITH STANDARD
ELECTRONIC IGNITION
· Self-Contained
· Gas Heated
· Floor 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.
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 dam-
age. Unied Brands suggests that if you are suspicious of damage to make a
notation on the delivery receipt. It will be the responsibility of the consignee to le
a claim with the carrier. We recommend that you do so at once.
Manufacture Service/Questions 888-994-7636.
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.
PART NUMBER 121050, REV. E (5/08)
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax 888-864-7636
groen.com
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OM-DH
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 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:
DO NOT CONNECT ANY PIPING TO THE POP SAFETY VALVE. THE VALVE MUST
BE FREE TO VENT STEAM AS NEEDED. THE ELBOW ATTACHED TO THE SAFETY
VALVE SHOULD POINT TO THE FLOOR. IMPROPER INSTALLATION WILL VOID
WARRANTY.
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 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 SAFETY VALVE OPERATION PERIODICALLY COULD RESULT
IN PERSONAL INJURY AND/OR DAMAGE TO EQUIPMENT.
WARNING:
WHEN TESTING SAFETY VALVE, AVOID ANY EXPOSURE TO THE STEAM
BLOWING OUT OF THE SAFETY VALVE. DIRECT CONTACT WITH STEAM COULD
RESULT IN SEVERE BURNS.
WARNING: TO AVOID INJURY, READ AND FOLLOW ALL PRECAUTIONS STATED ON THE
LABEL OF THE WATER TREATMENT COMPOUND.
2 GROEN.COM
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OM-DH
WARNING: BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC
POWER SUPPLY AND CLOSE THE MAIN GAS VALVE. ALLOW FIVE MINUTES FOR
UNBURNED GAS TO VENT.
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 SERVICE AGENTS 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.
OM-DH/DHT 3
Page 4
Table of Contents
IMPORTANT OPERATOR WARNINGS
.........................................
2
EQUIPMENT DESCRIPTION
..................................................
5
INSPECTION & UNPACKING
.................................................
6
INSTALLATION
.............................................................
7
OPERATION
................................................................
9
SEQUENCE OF OPERATION
................................................
11
MAINTENANCE ........................................................... 12
CLEANING ................................................................ 15
TROUBLESHOOTING ....................................................... 17
DIAGRAMS & SCHEMATICS ................................................ 19
PARTS LISTS .............................................................. 20
MAINTENANCE LOG ....................................................... 33
REFERENCES
............................................................
34
WARRANTY
...............................................................
35
4 GROEN.COM
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OM-DH
Equipment Description
The Groen DH is a floor-mounted, tilting, steam
jacketed kettle with a thermostatically controlled,
self-contained, gas-heated steam source and
appropriate controls, mounted on a sturdy base.
The Model DH is available in 20, 40, 60 or 80
gallon capacities.
The body of the DH 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
which is ASME shop inspected and registered
with the national board for working pressures up
to 50 PSI. Kettle finish is 180 emery grit on the
inside and bright high buff polish on the outside.
The kettle is 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 or flanged
feet on each of the legs can be adjusted to level the
kettle. Standard DHT units include a two inch
tangent draw-off valve.
The self-contained steam source is heated by
propane or natural gas. Ignition is electronic.
The kettle is charged at the factory with
chemically pure water which contains rust
inhibitors. The steam source provides kettle
temperatures of 150º to approximately 295ºF (65
to 150ºC). Unit controls include a thermostat,
pressure gauge, safety valve, pressure limit
control, low water cut-off, power switch and gas
regulator valve. The gas supply shuts off
automatically when the kettle is tilted.
The unit must be specified for use with natural or
propane gas. Servi
ce connect
ions for gas and
electricity are required. Standard power supply is
115 Volt. Alternate voltages (208V or 240V) are
available.
KETTLE CHARACTERISTICS
DH/DHT-20 DH/DHT-40 DH/DHT-60
Kettle Capacity
20 gal
(75 ltr)
40 gal.
(150 ltr)
60 gal.
(225 ltr)
Kettle Body
Diameter
20 in.
(508 mm)
26 in.
(660 mcm)
30 in.
(762 mm)
Base Width
35 in.
(889 mm)
47 in.
(1194 mm)
47 in.
(1194 mm)
Base Front to
Back
29
(736 mm)
29
(736 mm)
29
(736 mm)
Firing Rate - per
hour
72,000 BTU 100,000 BTU 150,000 BTU
Energy into
Product per hr.
44,140 BTU 65,000 BTU 93,000 BTU
DH/DHT-80
80 gal.
(302 ltr)
34 in.
(863 mm)
52 in.
(1320 mm)
37.5
(952 mm)
150,000 BTU
93,000 BTU
Options available with listed models are:
1. Two inch tangent drawoff standard on DHT models
2. Strainers, solid disk, ¼ or
c inch holes
3. No. 31 lift-off cover
4. No. 51 counterbalanced cover w/actuator*
5. Basket Inserts (Tri-BC)
6. Water fill faucets with swing spout
7. Kettle Brush Kit
OM-DH/DHT 5
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Inspection & Unpacking
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.
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 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 hidden 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 the
se en
tries 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 BETWEEN 535 AND
978 POUNDS (245 TO 400 Kg) DEPENDING
ON SIZE. INSTALLER SHOULD USE
PROPER EQUIPMENT TO LIFT SAFELY.
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.
6 GROEN.COM
Page 7
The open end of the pop safety valve elbow
must face downward.
Installation
For efficient performance the DH kettle must be
installed in a well-ventilated area. Items which might
restrict or obstruct the flow of air for combustion and
ventilation must be removed. The area directly
around the appliance must be free of combustible
materials.
WARNING
THE KETTLE MUST BE INSTALLED BY
PERSONNEL QUALIFIED TO WORK WITH
ELECTRICITY AND PLUMBING. IMPROPER
INSTALLATION CAN RESULT IN INJURY TO
PERSONNEL AND/OR DAMAGE T O
EQUIPMENT.
1. Installation on combustible floors is allowed.
Rear clearance of 10 inches and six inches at
both sides is required for both combustible and
non-combustible construction.
2.
Installation under a vent hood i
s re
commended.
Consult local codes.
3. Set the kettle in place and level it using a spirit
level on the bar rim, by turning the bullet or flange
feet to adjust leg length. Allow clearance around
the unit for cleaning, maintenance and service.
4.
Complete the piping to the gas service main with
½” line or approved equivalent.
5.
For standard units, provide 115 vac, 60 Hz,
single phase 5 AMP electrical service. The unit
may also be ordered for alternate electric service
of 208 VAC or 240 VAC. Observe local codes
and/or The National Electrical Code in
accordance with ANSI/NFPA 70 - (current
edition). Use the wiring diagram inside the
service panel and at the rear of this manual.
6. Bring electrical service through the entrance at
the rear of the
support hou
sing with a ½ inch
conduit connector. Make a watertight connection
with the incoming lines.
DANGER
ELECTRICALLY GROUND THE UNIT AT THE
TERMINAL PROVIDED. FAILURE TO GROUND
UNIT COULD RESULT IN ELECTROCUTION
AND DEATH.
7. Electrically ground the unit at the terminal
provided.
8. After the kettle has been connected to the gas
supply, check all gas joints for leaks. DO NOT
USE FLAME TO CHECK FOR LEAKS. A thick
soap solution or other suitable leak detector
should be employed.
9.
Confirm that the jacket water level is between
the gauge glass markers or inside the sight glass
port. If the level is low, follow instructions under
“Jacket Filling and Water Treatment,” Page 13.
10.
The open end of the elbow on the outlet of the
safety v
alve mu
st face downward. If it does not,
turn it to the correct position.
WARNING
DO NOT CONNECT ANY PIPING TO THE POP
SAFETY 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.
11. The appliance and its individual shut-off valve
must be disconnected from the gas supply
piping system during any testing at pressures in
excess of ½ PSI (3.45 kPa). The appliance must
be isolated from the gas supply piping system
by closing its individual manual shut-off valve
during any pressure testing at or less than ½ PSI
(3.45 kPa).
OM-DH/DHT 7
Page 8
8
Each day confirm the jacket water
level by checking the water gauge.
When attaching the draw-off valve handtighten the nut.
(For units with optional tangent draw-off). Assemble
the tangent draw-off by placing the large nut over the
draw-off valve and inserting it into the draw-off tube.
ONLY HAND-TIGHTEN THE NUT to complete
installation.
Now that the kettle has been installed, you should
test to ensure that it is operating correctly.
1. Remove 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
it
s 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 (Page 9), begin heating the
water at the highest thermostat setting. The heat
indicator light should come on, and heating
should continue until the water boils.
If the unit functions as described it is ready for use. If
it does not function as described, contact your local
Groen Authorized Service Agency.
PROPER
WATER
LEVEL
8 GROEN.COM
Page 9
Operation
A.
Controls
Operator controls for the DH kettle are:
1.
Manual gas valve (on gas line behind the unit),
which controls the supply of gas from the main to
the unit.
2. On-Off (Toggle) Switch. This controls the supply
of electric power to the control circuits.
3. Thermostat dial, which turns the thermostat on or
off, and sets the kettle temperature.
4. Tilting crank, used to tilt the kettle body.
5. Indicator Lights to alert operator of unit
conditions:
a. Power On Indicator - shows that the unit is
turned on
b. Heat Indicator - indicates that main gas is on
to produce steam in the kettle jacket.
c. Low Water indicator - shows that jacket
water is low
6.
Unit gas
pressure regulator
adjustment - located
behind the access door in the kettle skirt.
B. Operating Procedure
1.
To Start Kettle:
a. EVERY DAY make sure that the jacket water
level is between the markers on the gauge
glass or inside the sight glass port. If the level
is too low, see “Jacket Filling and Water
Treatment” on page 13.
b. Check the pressure gauge. If the gauge does
not show 20 to 30 inches of mercury (Hg)
vacuum (that is a reading of 20 to 30 below 0
atmospheric pressure), see “Jacket Vacuum”
on page 13.
c. Do not attempt to light any burner with a
flame.Turn the manual gas valve ON (align
handle with gas line).
1) Turn toggle (on-off) switch ON. The
electronic ignition will attempt to light the
pilot for 90 seconds, or until it is lit. Once
lit, proceed to st
ep t
wo.
2) Turn thermostat to desired setting. The
main gas burner will ignite, and will cycle
to maintain the set temperature. The
3) If the unit does not light, turn it off and
wait five minutes. Then follow the
instructions again.
2
To Empty Kettle:
a. To tilt the body of the kettle forward, turn the
hand crank on the front of the cabinet
counter-clockwise. The body will stay in the
position it holds when you stop cranking. To
return the kettle body to its upright position,
turn the crank clockwise.
b. Product may also be transferred by means of
the optional draw-off valve, if the kettle is so
equipped.
3.
To Shut Down Kettle:
a. Turn thermostat dial to OFF
.
b. Turn
toggle switch to OFF.
4.
For a prolonged shut-down:
a. Follow the procedure above.
b. Turn the manual gas valve off (handle at
right angles to gas line).
c. Disconnect electric power from the unit.
heat indicator light will come on.
OM-DH/DHT 9
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OM-DH
WARNING
WHEN TILTING KETTLE:
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 RIGHT OF KETTLE WHILE
POURING — NOT DIRECTLY IN POUR
PATH OF HOT CONTENTS.
5) POUR SLOWLY, MAINTAINING
CONTROL OF KETTLE, AND RETURN
KETTLE BODY TO UPRIGHT POSITION
AFTER CONTAINER IS FILLED OR
TRANSFER IS COMPLETE.
6)
DO NOT OVERFILL CONTAINER.
AVOID SKIN CONTACT WITH HOT
CONTAINER AND ITS CONTENTS.
5.
If power fails:
a. Do not attempt to operate the unit until
electric power is restored.
b. When power comes back on, follow
directions “To Start Kettle,” above.
C.
Use of Common Accessories
1.
Lift-Off or Counterbalanced Cover
As with stock pot cooking, an optional cover can
speed up the heating of water and food products.
It helps retain heat and reduces the heat and
humidity in the kitchen. A cover can reduce
some product cook times and help maintain the
temperature, color and texture of products 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 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.
WARNING
AVOID ALL DIRECT CONTACT WITH HOT
SURFACES AND HOT FOOD OR WATER
IN THE KETTLE. DIRECT CONTACT
COULD RESULT IN SEVERE BURNS.
When removing a lift-off cover:
a. Firmly grasp the handle, and lift the rear
edge (farthest from operator) 1-2” (3-5 cm)
to allow steam and water vapor to escape.
Wait 2-3 seconds.
b. Tilt cover to 45-60° angle to allow any hot
condensate or product to roll off cover back
into kettle.
c. Remove cover, ensuring that remaining hot
condensate or product does not drip on
operator, floor or work surfaces.
d. Place cover on safe, flat, sanitary, out-of-the-
way surface, or return to kettle.
CAUTION
DO NOT TILT KETTLE WITH LIFT-OFF
COVER IN PLACE. COVER MAY SLIDE
OFF, CAUSING INJURY TO OPERATOR.
2. Basket Insert
An optional kettle basket insert set (Tri-BC) will
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,
(approx. ¼” (6 mm). This includes rice and small
pasta shapes.
a. Allow for displacement of the three baskets
and product. This may mean only half filling
the kettle. Test baskets 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 AT LEAST 2-3” (5-8 cm)
BELOW THE KETTLE RIM TO ALLOW
CLEARANCE FOR STIRRING, BOILING
AND SAFE PRODUCT TRANSFER.
10 GROEN.COM
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OM-DH
WARNING
AVOID ALL DIRECT CONTACT WITH HOT
FOOD OR WATER IN THE KETTLE. DIRECT
CONTACT COULD RESULT IN SEVERE
BURNS.
b. Load baskets on a level, stable work
surface.
c. Lift loaded baskets with both hands. Get
help from another person if the basket is too
heavy for safe handling.
d. Slowly lower product into kettle and securely
hook basket to the “Y” frame.
e. 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.
f. 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...
g. 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.
Sequence of Operation
The following “action-reaction” outline is provided to
help understand how the DH kettle works.
1.
When the power switch is turned on, it starts the
spark igniter and opens the automatic valve for
the pilot burner. The spark ignites a pilot flame,
which heats the sensor. The sensor then sends
a signal to turn off the spark. The flame
thereafter acts as a standing pilot until the power
is turned off.
2.
If the pilot flame is not sensed within 90 seconds
after spark begins, a timer shuts down the entire
operation. To attempt a second trial for ignition,
turn off the power switch. Check the gas supply
valves and wait five minutes before trying again
by switching power on. If you cannot establish a
pilot flame in four tries, close all valves, turn off
the power, and contact an authorized Groen
Service Agency.
3. When the operator sets a temperature on the
thermostat, it causes the automatic valve to
admit gas to the main burner, where it is ignited
by the pilot flame. When the kettle reaches the
set temperature, the thermostat switch opens.
This stops the signal to the gas control valve and
shuts off gas to the main burner. The pilot flame
remains lit. When the kettle cools below the set
temperature, the thermostat switch closes and
starts another cycle. On and off cycling
continues and maintains the kettle at the desired
temperature. This action is indicated by the Heat
indicator light.
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. Pop safety 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-DH/DHT 11
Page 12
The pressure gauge should show a vacuum of
20 to 30 inches of mercury (Hg) and the water
level should be between the markers when the
kettle is cold. For water level on models DH/DHT80, see photo on page 8.
Maintenance
NOTICE: Contact Groen or an authorized Groen Service Agent 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:
a. Check the
pres
sure/vacuum gauge every
day. The gauge should show a vacuum of
20 to 30 inches mercury (Hg), when the
kettle is cold. If it does not, see “Jacket
Vacuum” on page 13.
b. Also check the jacket water level every day.
It should be between the markers on the
gauge glass or inside the sight glass port. If
the level is low, see “Jacket Filling and Water
Treatment” on page 13.
c. Test the safety valve at least twice each
month. With the kettle operating at five 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 to five PSI and repeat
the procedure. (Tip: Using a
screwdriver or
other
implement to pull the ring will help you
avoid contact with the steam.)
d. If the valve does not activate, or there is no
evidence of discharge, or the valve leaks,
stop using the kettle and contact a qualified
Groen service representative.
WARNING
WHEN TESTING, AVOID ANY EXPOS
URE
TO
THE STEAM BLOWING OUT OF THE SAFETY
VALVE. DIRECT CONTACT COULD RESULT IN
SEVERE BURNS.
e. Keep the primary burner gas jet air inlets
free of dust and lint.
f. The pilot flame should be blue. It should
envelop about ½ inch (12 mm) of the flame
sensor tip.
g. The gear housing has fittings for lubrication
of moving parts. The gears do not run in oil,
so periodic lubrication with grease is
ne
cess
ary.
h. Frequency of lubrication depends on
operating conditions, but it should be done at
least once every six months.
i. Use a #2 grade LGI lithium grease to add
grease through Zerk fittings on gear housing
until it flows out of the bearings around the
trunnion shaft.
j. Place liberal amounts of grease on the gear
to cover the arc that is in contact with the
12 GROEN.COM
Page 13
OM-DH
Test the safety valve at least twice monthly.
Liberally grease the wheel where it contacts the
worm gear.
Add grease through Zerk Fittings.
worm gear.
k. Keep electrical wiring and connections in
good condition.
l. Keep the inside of the control console clean
and dry.
m. Keep burner slots clean.
2.
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:
a. Start the unit. (Be sure there is water or
product in the kettle when heating).
b. 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 s
tep
three or four
times. Then let the pull ring snap back into
the closed position.
c. 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.
d. 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 a Groen authorized
service agency to correct the problem.
3.
Jacket Filling and Water Treatment
The jacket was charged at the factory with the
proper amount o
f trea
ted 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.
Allow the kettle to cool completely. The
procedure will be easier with the kettle under
vacuum ( pressure gauge reading below zero).
(ONLY ON
DH-60 AND
SMALLER)
OM-DH/DHT 13
Page 14
OM-DH
a. Make sure the fill valve is closed, and
remove the square head pipe plug with
open-ended wrench.
b. Position a funnel in the opening and fill it
with properly treated water.
c. Slowly open the fill valve to allow water to be
sucked into the jacket. Quickly close the
valve to prevent air from entering.
d. Check water level in the jacket to ensure that
it is between minimum and maximum marks
on glass or at the top of the sight glass port for
models DH/DHT-80 (see photo on page 8).
e. Close the valve and reinstall the square-
head pipe plug.
f. Reestablish the jacket vacuum as described
in Paragraph 2, above, if the pressure gauge
does not show a negative reading of 20 to
30 inches mercury (Hg).
4. Water Treatment Procedure
a. Obtain water treatment compound and a pH
test kit from your Groen Service Agent.
W
ARNING
TO AVOI
D INJURY, READ AND FOLLOW ALL
PRECAUTIONS ON THE LABEL OF THE
WATER TREATMENT COMPOUND.
b. Fill a mixing container with the measured
amount of water required. (See table).
Distilled water is recommended.
Kettle Model
Recommended
Jacket Fill
DH-20, DHT-20 2½ Gallons
DH/1-40, DHT/1-40 3½ Gallons
DH-60, DHT-60 4 Gallons
DH-80, DHT-80 1
1
/4 Gallons*
c. 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.
d. Measure the water treatment compound.
One way to do this is to add the compound
from a measuring cup.
e. Stir the water continuously, while you slowly
add treatment compound, until the water has
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 test kit.
f. As you add water to the jacket, check water
level to ensure that it is between minimum
and maximum marks on glass or at the top of
the sight glass port for models DH/DHT-80 (see
photo on page 8). Stop adding water when it
reaches the maximum marker on the gauge.
g. Record the exact amounts of water and
treatment compound needed. These
amounts may be used again, if the same
water sources and compound are used.
However, it is best to check the pH each
time treated water is prepared.
5.
Component Replacement
WARNING
BEFOR E R EPLACIN G ANY P ARTS,
DISCONNECT THE UNIT FROM THE ELECTRIC
POWER SUPPLY AND CLOSE THE MAIN GAS
VALVE. ALLOW FIVE MINUTES
FOR
UNBURN
ED GAS TO VENT.
When component replacement involves breaking a
gas pipe connection, check the new connection with
soap solution or an appropriate leak detector. DO
NOT USE A FLAME TO TEST FOR LEAKS.
Internal wiring is marked as shown on the circuit
schematic drawings (inside control housing and in
this manual). Be sure that new components are
wired in the same manner as old components. An
examination of the circuit schematic shows that the
safety components are wired in series. In most
cases, a faulty component may be isolated with a
jumper wire to verify that the component is faulty. If
this determination is made, contact a Authorized
Groen Service Agency for assistance.
* this number is not a mistake
14 GROEN.COM
Page 15
When attachin g the draw-off valve, just handtighten the nut.
Cleaning
1. Suggested Cleaning Supplies:
a. Cleaner, such as Klenzade HC-10 or HC-32
from ECOLAB, Inc. or equivalent.
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.
CAUTION
MOST CLEANERS ARE HARMFUL TO THE
SKIN, EYES, MUCOUS MEMBRANES, AND
CLOTH
ING.
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.
b. Scrape and flush out food residues. Be
careful not to scratch the kettle with metal
implements. (For DHT models only: After
flushing the kettle, close the draw-off valve.)
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
u
sed to clean controls, housings, and
electrical conduits.
d. Model DHT only: Disassemble the tangent
draw-off valve. Clean the draw-off port and
each valve part with a brush.
CAUTION
DO NOT MIX PARTS OF DIFFERENT DRAWOFF VALVE ASSEMBLIES. THE PARTS ARE
NOT INTERCHANGEABLE.
e. Rinse the kettle and draw-off valve parts
thoroughly with hot water, then drain
completely.
f. When you reassemble the draw-off valve,
hand-tighten the nut which holds it in place.
g. As part of the daily cleaning program, clean
soiled external and internal surfaces.
Remember to check the sides of the unit and
control housing.
h. To remove burnt on foods, use a brush,
sponge, cloth, plastic or rubber scraper, or
plastic wool with the cleaning solution.
To
reduce eff
ort 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.
OM-DH/DHT 15
Page 16
i. The outside of the unit may be polished with
a stainless steel cleaner such as “Zepper”
from Zep Manufacturing Co. or equivalent.
j. 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.
k. 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 I N
CONTACT WITH STAI NLESS STEEL
SURFACES LONGER THAN 30 MINUTES.
LONGER C O NTACT CAN CAUS E
STAINING AND CORROSION.
k. It is recommended that each piece of
equipment be sanitized just before use.
l. 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.
m. If cleaning problems persist, contact your
cleaning product representative for
assistance. The supplier has a trained
technical staff with laboratory facilities to
serve you.
16 GROEN.COM
Page 17
OM-DH
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 and in
this manual. If an item on the list is followed by
, the work should be done by a qualified service
representative.
WARNING
BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY
AND CLOSE THE MAIN GAS VALVE. ALLOW FIVE MINUTES FOR UNBURNED GAS TO VENT.
CAUTION
USEING REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR AUTHORIZED
DISTRIBUTOR CAN CAUSE OPERATOR INJURY AND EQUIPMENT DAMAGE AND WILL VOID ALL
WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
indicates items which must be performed by an authorized technician.
Kettle is hard to tilt. User a.
Gears for foreign materials, and lubrication.
Auth
Service
Rep Only
b.
Gears for alignment.
c. Worm gears or broken gears.
Kettle continues heating after it
reaches desired temperature.
User a.
Thermostat dial setting.
Auth
Service
Rep Only
b.
Thermostat calibration.
c. Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
Kettle stops heating before it
reaches the desired temperature.
User a.
Thermostat dial setting.
Auth
Service
Rep Only
b.
Thermostat calibration.
c.
Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
Safety Valve pops open User a. For air in the jacket. See “Jacket Vacuum” in the Maintenance section.
b.
Thermostat dial setting.
Auth
Service
Rep Only
c.
For defective thermostat. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle. If
defective, replace.
d. For defective safety valve. If the valve pops at pressures below 49 PSI,
replace.
Burners will not light. User a.
That the main gas supply valve is open. (handle is in line with gas pipe).
b.
Gas supply to the building.
c. That the kettle body is not tilted.
Auth
Service
Rep Only
d.
Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
f.
That tilt limit switch is closed when body is not tilted.
System does not produce a spark Auth
Service
Rep Only
a. Thermostat, and close the contacts if they are open
b.
AC voltage between terminals on secondary side of transformer. If it is
not 24 Volt, replace the transformer
c. That the high tension cable is firmly attached and in good condition. If
cracked or brittle, replace.
d.
Pilot electric ceramic for crack or break.
e. Pilot spark gap. Regap.
OM-DH/DHT 17
Page 18
OM-DH
SYMPTOM WHO WHAT TO CHECK
indicates items which must be performed by an authorized technician.
Spark is present but the pilot will
not light.
Auth
Service
Rep Only
a.
That the pilot valve is securely connected to terminals.
b. For 24 VAC at terminals PV and PV/MV. If 24V is not present, replace
the ignition control module.
b.
That gas pressure is at least 3.5" W.C.(8.7818 b).
c. For gas at the pilot. If it is not flowing:
(1) Check the pilot gas line for kinks and obstructions.
(2) Clean orifice, if necessary.
(3) Check magnetic operator for pilot valve on gas valve. Repair or
replace as necessary.
d.
That the pilot spark gap is located in the pilot gas stream. If not, adjust
or replace the pilot burner.
e. For drafts. Shield the pilot burner, if necessary.
Pilot lights, but main burner will
not come on and spark does not
stay on.
Auth
Service
Rep Only
a. For 24 V between terminals PV and PV/MV. If 24V is not present,
replace the ignition control module.
b.
That gas pressure is at least 3.5" W.C.(8.7818 b).
c. Electrical connections of the main valve to terminals, to assure that they
are securely attached. Check magnetic operator for pilot valve on gas
valve. Repair or replace as necessary.
Pilot lights, but main burner will
not come on, the spark stays on.
Auth
Service
Rep Only
a. Check for bad burner ground. If necessary, repair with high temperature
wire.
b. Pilot burner ceramic insulator for cracks.
c. That cable is not grounded out. If it is, correct the ground-out condition
or replace cable.
d. For proper gas pressure.
e. Clean pilot assembly, or replace if necessary.
f.
Tighten all mechanical and electrical connections.
g.
If the pilot flame is weak, increase pilot orifice size.
h. Replace ignition control module.
Main burner comes on but will not
stay on.
Auth
Service
Rep Only
a. Check burner ground for bad wire or connection. Replace if necessary
with high temperature wire.
b.
Check for low gas supply pressure. If necessary, replace ignition control
module.
18 GROEN.COM
Page 19
OM-DH
Electrical Schematic
OM-DH/DHT 19
Page 20
Parts List for DH/DHT-60 or Smaller Sizes
To order parts, contact your Groen Certified Service Agency. Supply the model designation, part description, part number, quantity, and, where applicable,
voltage and phase.
optional tangent drawoff
20 GROEN.COM
Page 21
OM-DH
21
Parts List for DH/DHT-60 or Smaller Sizes
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. Key Description Part No.
Hardware, Final Assembly 117086 Screw, Socket Head 3/8-16 x 1-1/2 Lg 005097 Label Warning-Self Contained Kettles 098171
Valve, Safety & Water Fill Assembly 005444 Washer Lock, 3/8" 005702 Valve, Gas, Manual Shut-Off 098458
Chain, Single Jack Link 003261 Nut, Hexagon 1/2-13 005705 Label, Warning, AGA 099961
Safety Valve and Water Fill Assembly 097008 Washer, Lock 1/2" 005735
Valve, Safety, 50 PSI 097005 Nut, Hexagon 3/8-16 008214 Water Column Assembly 117088
Elbow, 90 degree Street 1/2 NPT 096905
Sc
rew Hexagon Head 1/2-13 x 1-1/2 008679 Fittings, Sight Glass Assembly 002845
Elbow, 90 deg. Street 1/2 NPT black 004185 Guard Gas Rod Gauge 002981
Housing, Bearing Assembly 009762 Label, Maximum and Minimum 000558
Piping Water Fill Assembly 097007 Screw Set Socket 3/8-16 x 1/2 009763 Tube, Water Level 008742
Plug Pipe 1/2 NPT Brass 011146 Fitting Grease Straight 012100 Gauge, Compound Pressure w/dual 084208
Tee, 1/2 NPT 008772 Bearing, Ball 009765 Elbow, F 90 Deg 1/2 NPT x 1/2" tube 055634
Valve, Swing Check 1/2 NPT 004187 Gear, Worm 3/4" Bore 012026 Nut, Hex Cap 005470
Nipple, 1/2 NPT x Close black 008877 Washer, Shim 1-3/8" ID x 1-3/4 OD 012039 Bushing, Reducing 1/4" x 1/8" NPT 074872
Valve, Gate 1/2 NPT 004180 Screw Set Socket w/Nylon insert 012060
Plate, Caution 1-3/8" x 2-1/4" 008250 Pin Roll 1/4" Dia x 1-1/4" Long 012614 Assembly, Front Panel 123804
Tag, Water Supply 084083 Ring Internal Retaining 1-3/4" Shaft 013483 Light, Indicator, Amber, 24 VAC 116384
Washer, Plain 1/4" 005472 Gear 3" Bore 013609 Light, Indicator, Red, 24 VAC 116383
Screw, Flat Head 8-32 x 3/8" Lg 006006 Handle, Crank, 3/4" Bore 013617 Switch, SPST On/Off 006904
Clamp, Conduit 1/2" 006777 Shaft, Handwheel, 3/4" Dia x 13-1/2 013624 Overlay, Front Panel 123802
Coupler, Male Tab 007880 Spacer, 3" Sch 40 x 3/4" 013625
Clamp, Conduit 3/8" OD 008224 Shim, Trunnion 088246 A Stand and Housing Assembly 123813
Bracket, Faucet Mounting 009054 Shim, Trunnion 088247
Strap, Cable Ty-Wrap 011093 Shim, Tr
unnion 088248 B Gas Valve Piping & Bottom Comps. 127369
Nut, Hex, Keps 1/4-20 w/washer 012940 Nameplate, “Groen” 055450
Foot, Adjustable, Bullet 2"OD 013275 Bracket, Support 065382 C Burner and Flame Sensor Assembly 123814
Nameplate “Fill Jacket..” 026450 Bracket, Support Assy Gas Line 068132
Clamp, Conduit 1/2" 006777 D Combustion Chamber Assembly 122093
Tilt Mechanism Assembly 045752 Nut Hexagon Keps 1/4-20 012940
Bushing, Snap 3/4" x 1" Nylon 000453 Bracket Support 1/8"x3/4"x8-3/4" 068133 E Flue Stack Assembly 117034
Key, 3/8" Square x 1-3/8" Lg 001474 Swivel Joint 1/2" NPT 076680
Bar Square 3/8" 403511 Label, Warning 093614
See Following Pages for Assembly Parts
OM-DH/DHT 21
Page 22
Parts List for DH/DHT-80
C
OPTIONAL TANGENT DRAW OFF
E
A
D
B
To order parts, contact your Groen Authorized Service Agency. Supply the model designation, part description, part number, quantity, and, where applicable,
voltage and phase.
22 GROEN.COM
Page 23
MANIFOLD, PRESSURE RELIEF VALVE 150926
VALVE SAFETY 50 PSI 1/2”NPT 10-51249 097005
GAUGE COMPOUND PRESSURE W/DUAL 084208
ELBOW 90 DEG STREET 1/2 NPT 096905
RELIEF VALVE PIPING ASSEMBLY, 141428
TEE 1/2” NPT 008772
NIPPLE 1/2” NPT X CLOSE 008877
ELBOW 90 DEG STREET 004185
BUSHING REDUCING 1/2” 008739
COUPLING FULL 1/2 NPT (NICKEL PLATED) 149048
NIPPLE 1/2” NPT X CLOSE 008877
PIPING WATER FILL ASSEMBLY 139396
PLUG PIPE 1/2 NPT 011146
ELBOW 90 DEG STREET 004185
VALVE SWING CHECK 004187
NIPPLE 1/2” NPT X CLOSE 008877
Parts List for DH/DHT-80
Key Description Part No.
Key Description Part No.
GEAR 3” BORE (92)TEETH DEE/4 013609
SPACER 3” SCH 40 X 2.445” LONG 150235
SPACER WASHER FOR WORM GEAR 004901
WASHER LOCK 3/8” 005618
WASHER PLAIN 1/2” 005049
HANDLE CRANK 3/4” BORE 013617
HOUSING BEARING ASSY. DH/DHT-80 149788
HOUSING BEARING, CASTING 149768
SCREW SET SOCKET 009763
FITTING GREASE #70 012100
SHAFT, HANDWHEEL 20.5” LONG. 150937
FRONT PANEL ASSY. DH/DHT-80 150239
LIGHT, INDICATOR RED 24VAC 116383
LIGHT, INDICATOR AMBER 24VAC 116384
OVERLAY, FRONT TOP. DH/DHT-80 150237
OVERLAY, FRONT LOWER. DH/DHT-80 150238
SWITCH SPST ON/OFF 006904
A Stand & Housing Assembly 149240
KNOB THERMOSTAT DIAL 012314
TILT SWITCH AND BRACKET ASM 135331
B Gas Valve, Piping & Bottom Components 149778
C Burner & Flame Sensor Assembly 123814
NUT HEXAGON KEPS 4-40 071297
BRACKET MOUNTING 014129
D Combustion Chamber Assembly 122093
E Flue Stack Assembly 149218
MICRO SWITCH V7 SERIES 002982
BARRIER INSULATION 003490
SCREW ROUND HEAD 003122
WASHER INTERNAL TOOTH 013418
011028
STUD WELD 1/4”-20 X 3/8” NON FLANGED
TYPE
NUT DOME HIGH PROFILE - 1/4-20 090567
WASHER PLAIN 1/2” 005049
FAUCET BRACKET, 137738
NUT HEXAGON KEPS 1/4”-20 WITH 012940
Key Description Part No.
LABEL ASSEMBLY, DH/DHT-80 KETTLE 150240
LABEL, ELECTRICAL CONNECTION 102229
LABEL GROUND 003384
LABEL, “3 AMP FAST-BLOW ONLY 102251
LABEL SINGLE PHASE 008118K
LABEL WARNING 072140
LABEL, TDH WARNING 137640
LABEL WARNING 095070
NAMEPLATE CGA DH KETTLES 114314
LABEL, WARNING - FOR SELF 098171
LABEL NSF 066735
PLATE DATA ASME FOR 083048
LABEL, DISTILLED WATER 026450
LABEL TDO VALVE CAUTION 110156
008450L1
LABEL, WIRING DIAGRAM, DHS-40 137926
LABEL FOR SUPPLY
STRAP CABLE TY-RAP 011093
TILT MECHANISM ASSY. DH/DHT-80 149762
BUSHING SNAP 3/4” ID 000453
KEY 3/8” SQUARE 001474
BAR SQUARE 3/8” 403511
SCREW SOCKET HEAD CAP 005097
NUT HEXAGON 1/2”-13 005705
WASHER LOCK 1/2” 005735
NUT HEX 3/8”-16” 005619
SCREW HEXAGON HEAD CAP 008679
BEARING BALL DEE/4-40 009765
GEAR WORM 3/4” BORE 012026
SCREW SET SOCKET 012060
PIN ROLL 1/4 DIA X 1-1/4 012614
OM-DH/DHT 23
RING BASIC INTERNAL 013483
Page 24
Stand and Housing Assembly
Parts List for DH/DHT-60 or Smaller Sizes
Key Description Part No. Key Description Part No. Key Description Part No.
A Stand and Housing Assembly 123813 5 Housing Cladding, DH-20 123810 9 1/2" Lock Washer 005735
1 Cabinet Side Panel 047882 5 Housing Cladding, DH-40 and 60 123811 10 Screw Truss #8-32 x 3/8 005764
2 Stand Cladding MS96694 6 Tray Liner 001475 11 Screw Truss #8-32 x 1-1/4 Lg. 071247
3 Base Assembly MS96698 7 Nut Hexagon 1/2-13 Heavy Duty 005705 12 Cabinet Cover 001465
4 Housing Weldment Assembly MS47332 8 Screw Hex Head Cap 1/2-13 x1-1/2 008679
24 GROEN.COM
Page 25
6
11
5
2
3
4
13
12
9
10
8 7
1
Parts List for DH/DHT-80
Stand & Housing Assembly
A Stand & Housing Assembly
1 FRAME ASSEMBLY DH/DHT-80 149257
2 WELDMENT, STAND CLADDING 149775
3 WELDMENT, PEDESTAL 149242
4 TRAY, LINER 150253
5 CLADDING, PREDESTAL ASSEMBLY 149241
6 COVER, TOP PEDESTAL CLADDING 150252
7 WASHER, PLAIN 1/2” 005049
8 WASHER LOCK 1/2” 005735
9 SCREW HEX HEAD CAP 1/2-13 X 1-1/2 LONG 008679
10 NUT HEXAGON 1/2”-13 005705
11 SCREW 8-32 X 3/8” LONG, TRUSS HEAD 005764
12 SCREW 8-32 X 1-3/8” LONG, TRUSS HEAD 081698
Key Description Part No.
13 CABINET, SIDE PANEL 149273
OM-DH/DHT 25
Page 26
Gas Valve Piping and Bottom Components Assembly
Parts List for DH/DHT-60 or Smaller Sizes
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. Key Description Part No.
B Gas Valve Piping&BottomComps. 127369 9 Pressure Switch 1/4" 096963 20 Cover, Bottom 049801
1 Tube, Copper, 1/2" 007334 10 Connector 1/2 NPT Male 049093
2 Elbow, Female, 90 Deg. 1/2 NPT 055634 11 Gas Valve 123815
3 Thermostat, electric 009730 12 Bracket Support 065382 21 Cap Bottom Cover Plate 049003
4 Elbow, 90 Deg 1/2 NPT 008747 13 Screw, Pan Head #8-32 x 3/8" 005764 22 Gasket, Bottom Plate 007937
5 Nipple, 1/2 NPT x 2-1/2" Long 005552 14 Nut, Hexagon
Kep 1/4 012940 23 Screw, 10-32x3/8, Hex 069773
6 Electrode, Water Level 002170 16 Bar 005440 24 Elbow, 1/8" NPT Male x 1/4" Tube 097195
7 Tee, 1/2 x 1/2 Tube x 3/8 MPT 074593 17 Clamp, Rigid Conduit 068687 25 Tube, Aluminum 1/4" OD x 32" 006796
8 Connector 1/4" NPT Female 097074
19 Boot Probe 101143
26 GROEN.COM
Page 27
11
13
12
2
4
5
3
1
17
18
16
15
14
21
20
19
6 7 8 9 10
Key Description Part No.
12 FITTING COMPRESSION 90 004584
13 VALVE, GAS JOHNSON CONTROLS 123815
14 TUBE 3/8” X 3”, COOPER 149766
15 TUBE, VALVE INLET. DH/DHT-80 149767
16 THERMOSTAT, ELECTRIC 009730
17 ELBOW 90 DEG 1/2” NPT 008747
18 SCREW, #10-32 X 3/8, HEX. 069773
19 CAP BOTTOM COVER PLATE 049803
20 GASKET, BOTTOM PLATE 007937
21 COVER, BOTTOM 149774
Parts List for DH/DHT-80
Gas Valve, Piping & Bottom Components
Gas Valve, Piping & Bottom Components
B
1 TUBE, PILOT 150949
2 FITTING COMPRESSION 057217
3 TUBE, VALVE OUTLET. DH/DHT-80 149765
4 ELECTRODE WATER LEVEL 076526
5 BRACKET SUPPORT 065382
6 SCREW PAN HEAD #8-32 X 3/8” 005764
7 NUT, HEXAGON KEEPS 1/4 012940
8 BAR 005440
9 CLAMP, RIGID CONDUIT 068687
10 SWITCH PRESSURE 1/4 NPT 096963
Key Description Part No.
11 FITTING COMPRESSION 049093
OM-DH/DHT 27
Page 28
Burner and Flame Sensor Assembly
Parts List
Key Description Part No.
C Burner and Flame Sensor Assly 123814
1 Baffle Plate 123498
2 Washer Lock 005655
3 Nut Hex 005601
4 Burner Bracket Support 1017010
5 Burner Bracket 117013
6 Burner Assembly 090644
7 Pilot Burner Assembly 123580
28 GROEN.COM
Page 29
1
2
3
4
5
Parts List for DH/DHT-60 and Smaller Sizes
E Flue Stack Assembly 117034
1 Flue, Top Section of Top Plate 117029
2 Flue, Bottom Section of Top Plate 117033
3 Flue, Front Section 117032
4 Flue, Main Body 117031
5 Screw, Truss Head 072189
Flue Stack Assembly
OM-DH/DHT 29
Page 30
Parts List for DH/DHT-80
2
1
4
3
5
30 GROEN.COM
Flue Stack Assembly
Key Description Part No.
E Flue Stack Assembly
1 ASSY. FLUE STACK MAIN BODY 149220
2 FLUE, FRONT PANEL. WELDMENT 150927
3 FLUE STACK, BOTTOM SECTION 149236
4 FLUE, TOP SECTION 149222
5 SCREW TRUSS HEAD MACHINED 10-32 X 1/2” L. 072189
Page 31
OM-DH
Arm and Module Box Assembly
Electrical Panel
Parts List
OM-DH/DHT 31
Page 32
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.
Electrical Panel 123736 Arm and Module Box Assembly 127734
1 Water Level Control 122192 1 Conduit Nut, 1/2" 005487
2 Transformer 75A 24V Sec., 120V Pri 106233 2 Screw #8-32 x 3/8" 005764
Transformer 75A 24V Sec., 208/240V
Pri
106234 3 Box, Spark Ignition Module 123775
3 Screw, Button Head #8-32 x 0.25 lg 096317 4 Gasket, Ignition Module Box 104941
4 Terminal Block, 2 Pole #4 - #18 AWG 003887 5 Spark Ignition Module 085153
6 Fuse Holder 3AG w/0.1875 quick con. 077854 6 Hex Nut w/shakeproof washer 071289
7 Screw
, Round hd
#6-32 x 0.1875 lg 058599 7 Conduit, Plastic, male adapter 1/2" 123733
8 Lug, Ground, 14-6 AWG 119829 8 Cover, Ignition Module Box 104948
9 Screw, Round Hd #8-32 x 1.25 lg 005056 9 Hex Nut w/shakeproof washer 069784
10-- Voltage Phase, Ground, Warning & varied 10 Tie Anchor - Screw Mounted 102231
–14 Electrical Supply Labels 11 Cable Tie, 0.140 Wide Locking 086426
15 Fuse, 30 Amp, 3 AG 077853 12 Screw #10=32 x 0.375 long 069773
16 Electrical Panel 123735
17 Nut, Hex, Keps #10-32 w/shakeproof 071256
washer
32 GROEN.COM
Page 33
OM-DH
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-DH/DHT 33
Page 34
References
CSA INTERNATIONAL
8501 East Pleasant Valley Road
Cleveland, Ohio 44131
AMERICAN NATIONAL STANDARDS INST., Inc.
1430 Broadway
New York, New York 10018
NATIONAL SANITATION FOUNDATION
3475 Plymouth Road
Ann Arbor, Michigan 48106
Z223.1-1984 - National Fuel Gas Code
Z21.30 - Installation Gas Appliances & Piping
KLENZADE SALES CENTER ECOLAB, Inc.
370 Wabasha
St. Paul, Minnesota 55102
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery march Park
Quincy, Massachusetts 02269
ZEP MANUFACTURING COMPANY
1310-T Seaboard Industrial Boulevard
Atlanta, Georgia 30318
NFPA/54 -Installation Gas Appliances & Piping
NFPA/70 - The National Electric Code
NSF INTERNATIONAL
798 N. Dixboro Rd.
P.O. Box 130140
Ann Arbor, MI 48113-0140
34 GROEN.COM
Page 35
Limited Warranty
To Commercial Purchasers *
(U.S. & 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 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 co
ver de
fects 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.) manufac
turer
'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)
OM-DH/DHT 35
Page 36
1055MendellDavisDrive•JacksonMS39272
888-994-7636•601-372-3903•Fax888-864-7636
groen.com
PART NUMBER 121050, REV. E (5/08)
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