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IMPORTANT INFORMATION
IMPORTANT INFORMATIONIMPORTANT INFORMATION
IMPORTANT INFORMATION
KEEP FOR OPERATOR
KEEP FOR OPERATORKEEP FOR OPERATOR
KEEP FOR OPERATOR
IMPORTANT INFORMATION
IMPORTANT INFORMATIONIMPORTANT INFORMATION
IMPORTANT INFORMATION
Model HY-24EF (New Model)
OPERATOR MANUAL OM-HY-12E/24E
Part Number 148667 DOMESTIC
Model: HY-12E and HY-24E
HyCapacity HyPerSteam™
Atmospheric Convection
Steamer
Self-Contained
Electric Heated
Model HY-12E
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.
OPERATOR MANUAL
Part Number 148667 Rev. C
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OM-HY-12E/24E
IMPORTANT - READ FIRST - IMPORTANT
WARNING: THE UNIT 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. THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH APPLICABLE
CODES.
CAUTION: DO NOT INSTALL THE UNIT IN ANY WAY WHICH WILL BLOCK THE RIGHT SIDE VENTS, OR
WITHIN 12 INCHES OF A HEAT SOURCE SUCH AS A BRAISING PAN, DEEP FRYER, CHAR
BROILER OR KETTLE.
NOTICE: Level the unit front to back, or pitch it slightly to the rear, to avoid drainage problems.
CAUTION: DO NOT LOCATE THE CABINET DIRECTLY OVER A FLOOR DRAIN OR FLOOR SINK. HUMIDITY
OR WATER FROM A DRAIN WILL DAMAGE ELECTRICAL PARTS OF A UNIT.
WARNING: TO AVOID DAMAGE OR INJURY, FOLLOW THE WIRING DIAGRAM EXACTLY WHEN CONNECTING
A UNIT.
WARNING: DO NOT CONNECT THE DRAIN DIRECTLY TO A BUILDING DRAIN.
CAUTION: DO NOT USE PLASTIC PIPE. DRAIN MUST BE RATED FOR BOILING WATER.
WARNING: BLOCKING THE STEAM GENERATOR OR CAVITY DRAIN SCREEN MAY BE HAZARDOUS.
IMPORTANT: Improper drain connection will void warranty.
WARNING: WHEN YOU OPEN THE DOOR, STAY AWAY FROM STEAM COMING OUT OF THE UNIT. STEAM
CAN CAUSE BURNS.
WARNING: BEFORE CLEANING THE OUTSIDE OF THE STEAMER, DISCONNECT THE ELECTRIC POWER
SUPPLY. KEEP WATER AND CLEANING SOLUTIONS OUT OF CONTROLS AND ELECTRICAL
COMPONENTS. NEVER HOSE OR STEAM CLEAN ANY PART OF THE UNIT.
WARNING: ALLOW COOKING CHAMBERS TO COOL BEFORE CLEANING.
WARNING: CAREFULLY READ THE WARNINGS AND FOLLOW THE DIRECTIONS ON THE LABEL OF EACH
CLEANING AGENT. USE SAFETY GLASSES AND RUBBER GLOVES AS RECOMMENDED BY
DELIMING AGENT MANUFACTURER.
WARNING: DO NOT MIX DE-LIMING AGENTS (ACID) AND DE-GREASERS (ALKALI) IN THE STEAM
GENERATOR OR ON THE COOKING CHAMBER WALLS.
WARNING: DO NOT PUT HANDS OR TOOLS INTO THE COOKING CHAMBER UNTIL THE FAN HAS STOPPED
TURNING.
WARNING: DO NOT OPERATE THE UNIT UNLESS THE REMOVABLE RIGHT SIDE PANELS HAVE BEEN
RETURNED TO THEIR PROPER LOCATIONS.
NOTICE: Do not use a cleaning or de-liming agent that contains any sulfamic acid or any chloride, including
hydrochloric acid. If the chloride content of any product is unclear, consult the manufacturer.
WARNING: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR
AUTHORIZED DISTRIBUTOR VOIDS ALL WARRANTIES AND CAN CAUSE BODILY INJURY TO THE
OPERATOR AND DAMAGE THE EQUIPMENT. SERVICE PERFORMED BY OTHER THAN FACTORYAUTHORIZED PERSONNEL WILL VOID ALL WARRANTIES.
WARNING: HIGH VOLTAGE EXISTS INSIDE CONTROL COMPARTMENTS. DISCONNECT FROM BRANCH
BEFORE SERVICING. FAILURE TO DO SO CAN RESULT IN SERIOUS INJURY OR DEATH.
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Table of Contents
IMPORTANT OPERATOR SAFETY WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
EQUIPMENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WATER CONDITIONING/REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION AND START-UP INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SERVICE LOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
17
18
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The HY-24EF has two independent
cavities, each with its own steam
generator (New model shown).
Equipment Description
Your Groen HY-12E HyCapacity HyPerSteam is
designed to give years of service. It consists of a
stainless steel cavity (cooking chamber) which is served
by an electrically-heated atmospheric steam generator.
The HY-24EF has two cavities and two generators.
Two powerful blowers circulate the steam in each cavity
to increase heating efficiency.
A dual position pan rack on the left side of the cavity
can be quickly changed to allow for the use of either 12"
x 20" steamer pans, or 18" x 26" bake pans. The
following table lists pan capacities:
Pan Size/Type
Number of Pans
HY-12E HY-24EF
12 x 20 x 2 ” (steamer) 12 24
12 x 20 x 4" (steamer) 8 16
13 x 18" (half-size bake) 24 48
18 x 26" (bake) 12 24
A stainless steel cabinet encases the cavity, steam
generator and a control compartment which houses
electrical components. Access to the control
compartment is gained by removing the right side
louvered panel. Door hinges are reversible so that the
door may be opened to the left or right. Operating
controls are on the front panel.
Newer model HY-12E and HY-24EF steamers
(manufactured since November 1999) are equipped
with fully electronic controls and a button-activated preprogrammed CLEAN cycle.
These units are readily identified by their unique control
panels. Touch pad controls, and the distinctive symbol
for steam is integrated into the panel design. The new
models also have fewer panel louvers on the right side
and rear.
The drain system includes a spray condenser, which
helps keep steam from coming out of the unit drain or
entering the building’s drain.
Water Conditioning
It is essential to supply the steam generator with water
that will not form scale. Even though the steam
generator is engineered to minimize scale formation,
scale development depends on the hardness of your
water and the number of hours the equipment
operates.
In some areas of the country, water is low enough in
minerals to avoid scale formation. But most water
supplies are full of minerals which form scale. It is this
scale which could lead to an early component failure.
Your water utility or treatment specialists can test and
tell you about the minerals in your water. The water
going to the steam generator should have between 10
and 30 parts per million (ppm) total dissolved solids
(TDS) and should have a pH (acidity rating) of 7.0 or
higher.
Please follow these simple precautions:
1. The best way to prevent scale is to use a Groen
PureSteem™ Water Treatment System which has
been specifically designed for Groen steamers and
combination ovens. Do not rely on unproven
water treatment systems sold for scale
prevention and removal. They are not
specifically designed to work with Groen
steamers and combination ovens.
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The optional separate water intake can significantly reduce treated water
volume requirements.
2. A well-maintained water treatment system and a
regular cartridge replacement schedule is
essential.
3. Using a Groen PureSteem™ Water Treatment
System will provide longer steam generator/boiler
life, higher steam capacity, and reduce
maintenance requirements.
4. If you notice a slowdown in steam production or an
increase in deliming, have the steamer checked for
scale build-up. This could be an indication that the
water treatment cartridges need replacing. Heavy
scale reduces the unit’s ability to boil water, and
can even cause component failure.
.
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Installation and Start-Up
WARNING
THE 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.
WARNING
TO AVOID DAMAGE OR INJURY, FOLLOW THE ELECTRICAL SCHEMATIC EXACTLY
WHEN CONNECTING THE UNIT.
CAUTION
DO NOT INSTALL WITH THE RIGHT SIDE VENTS BLOCKED OR WITHIN 12 INCHES OF A
HEAT SOURCE (BRAISING PAN, DEEP FRYER, CHAR BROILER, OR KETTLE). TO AVOID
DRAINAGE PROBLEMS, LEVEL THE UNIT FRONT TO BACK.
A. Installation
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1. Electrical Supply Connection
a. Panel Removal
Open the wiring and control panel by removing the
three screws on the right side panel and sliding the
panel forward. Set the panel aside.
b. Supply Voltage
The unit must be operated at the rated nameplate
voltage, plus or minus 10 percent.
c. Terminal Block
The terminal block for incoming power is located at
the back of the control compartment.
The ground terminal is located in the wiring
compartment above the terminal block.
The unit must have a separate ground wire for
safe operation. This wire must be at least
8 AWG for 208/240V, or 10 AWG for 480V.
d. Supply Wire
To determine the wire you need for the power
supply, find the operating voltage and phase on the
unit data plate. Refer to the table below or to the
label on the unit’s back for correct wire size and
insulation temperature rating. The “Electrical
Supply Connection” label inside the unit gives
directions for proper connection of the terminal
block jumpers.
The specified wire must be used in order to meet
Underwriters Laboratories and National Electric
Code requirements.
The knockout hole is sized for a two inch conduit
fitting.
e. Branch Circuit Protection
Groen strongly recommends that the HY-12E
Steamer or each cavity of the HY-24EF have its
own branch circuit protection. Each currentcarrying conductor must have overcurrent
protection. Refer to the label for proper wire size
and type. Watertight connections to the unit are
required.
2. Water Connection(s):
Install a check valve to prevent back flow in the
incoming cold water line, as required by local plumbing
codes. Water pressure in the line should be between
30 and 60 PSIG (210 and 420 kPa). If pressure is
above 60 PSIG, a pressure regulator will be needed. A
inc h R connector (garden hose type) is used to
attach the water supply to the water inlet valve. The
minimum water feed line diameter is inc h (13mm).
Use a washer in the hose connection. Do not allow the
connection to leak, no matter how slow it may be.
If you have the twin water connection option, put
the treated water (softened) to the bottom intake
(facing the rear of the unit), and untreated water to
the top. Connections for both are made as
described above.
Voltage
Wiring - Insulation Rating
Amperes Maximum KW
THWN (70ºC) THWN (90ºC)
208 Volt, 3 Phase
Not Approved 1/0 AWG 92 32.5
240 Volt, 3 Phase
Not Approved 1 AWG 80 32.5
480 Volt, 3 Phase
1 AWG 6 AWG 40 32.5
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Installation of drain line without drain box
(tabletop models only).
Drain Connection with Drain Box (All units are
shipped from the factory with a drain box). Old
model shown.
3. Drain Connection
The HY-12E/24E Steamer must be leveled front to
back or pitched slightly to the rear by adjustment of
the bullet feet on the cabinet base.
All units are shipped from the factory with a drain
box and vent pipe. The drain box and vent pipe
provide the necessary air gap when properly
installed. The illustrations below show proper
installation of drain lines from the drain box, and for
tabletop installation, without a drain box.
CAUTION
DO NOT CONNECT THE HOSE DIRECTLY TO
A BUILDING DRAIN. BLOCKING THE DRAIN
COULD BE DANGEROUS.
Do not create any water traps in the drain line. A
trap would cause pressure to build up inside the
cavity during steaming and make the door gasket
leak.
NOTE: Improper drain connection will void the
warranty.
INSTALLATION OPTION ONE: From stainless steel
elbow (P/N 092273) to nearby floor drain, use Radiator
Hose (rated at least 212ºF) and one additional hose
clamp (P/N 013616).
INSTALLATION OPTION TWO: Using the hose (P/N
080688) and two hose clamps (P/N 013616), connect
two inch copper tube to floor drain. NOTE: Drain lines
must be pitched downward at approximately inc h per
foot. No water traps should be allowed in the drain line.
IMPORTANT: Leave two inches free air gap to
building drain.
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B. Initial Start-Up
After your Steamer has been installed, test it to see that
each cavity is operating correctly.
1. Remove literature and packing materials from
inside and outside the unit.
2. Make certain that the water supply line is open.
2. Turn on electrical power to the unit.
3. Press the Power ON/OFF touch pad (“ON” switch
on older models). The steam generator will fill with
water.
NOTE: The door must be closed for the main (high)
heater to work.
4. Within six to 10 minutes the READY indicator light
should come on. This indicates that the water has
reached the standby temperature (near boiling).
When the READY light is displayed, the operator
may take any of the following steps:
a. Set the timer to the time desired for timed
steaming.
b. Turn the timer knob to the ON position for
continuous steam.
c. Allow the unit to remain at standby temperature
until needed.
WARNING
WHEN YOU OPEN THE DOOR STAY AWAY
FROM STEAM COMING OUT OF THE UNIT. THE
STEAM CAN CAUSE BURNS.
5. To shut down the unit, press the ON/OFF touch pad
(turn the ON switch to the OFF position on older
models). The steam generator will drain
automatically.
If the Steamer works as described, it is working
properly, and is ready for use.
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Manual “On”
Position
60 Minute Timer
Power On/Off
Button
Ready Indicator
Light
Power Indicator
Light
Service Indicator
Light
Delime Indicator
Light
Hi Temp
Indicator Light
Clean Cycle
Button
Operation
WARNING
ANY POTENTIAL USER OF THE EQUIPMENT SHOULD BE TRAINED IN SAFE AND
CORRECT OPERATING PROCEDURES.
A. Controls
Operator controls are located on the front right of the unit.
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The control panel on new models has the following touch
pads and indicator lights:
! The ON/OFF touch pad gets the HyPerSteam
ready for use, or shuts it off.
! The READY indicator light shows that the steam
generator is at standby temperature and the
cavity is hot enough to begin steaming.
! The DELIME indicator light is lit when the unit is
operating in the cleaning mode.
! The SERVICE indicator light shows when the
water level probes have stopped working, and
need to be cleaned (normally an indication of
lime deposits).
When one probe is not working, the DELIME
light flashes briefly every few seconds. If both
probes fail, the SERVICE light flashes
continuously and the beeper will sound.
! The HI TEMP indicator light comes on when the
steam generator is too hot.
The unit will automatically shut off, and cannot
be turned on again until the steam generator
cools and the HI TEMP indicator light goes out.
! The TIMING indicator light stays on when the
timer is running.
! The CLEAN touch pad is used to start the
automatic 30 minute cleaning cycle.
The timer is used in three ways:
1 In the OFF position the steam generator stays at
a low boil or “holding” temperature.
2 When a cook time is set, the unit steams until
the timer runs down to OFF. Steaming stops, the
DONE light (a red light on older models) comes
on and a beeper sounds.
3 With the timer turned to the ON position, the unit
steams continuously. The green light stays lit.
The steamer will not time down.
B. Operating Procedure
1. Press the ON switch/pad for the steamer. The
steam generator will fill, and heat until the READY
light comes on. (About 10 minutes.)
2. Load food into pans in uniform layers. Pans should
be filled to about the same levels, and should be
even on top.
3. Open the door and slide the pans onto the supports.
If you will only be steaming one pan, put it in the
middle position.
4. Close the door. With the READY indicator lit, take
one of the following steps:
! If you want to steam the food for a certain length
of time, set the timer for that period. The timer
will automatically run the steamer for the set time
and then turn it off. A red light will come on and
a beeper will sound. Steam production stops.
! If you want to steam continuously, turn the timer
to the manual ON position. A green light will
come on. The unit will continue steaming until
you stop it by turning the timer to OFF. When
steaming continuously YOU MUST CONTROL
STEAMING TIME.
WARNING
WHEN YOU OPEN THE DOOR, STAY AWAY FROM
THE STEAM COMING OUT OF THE UNIT. THE
STEAM CAN CAUSE BURNS.
5. Open the door. Remove the pans from the steamer,
using hot pads or oven mitts to protect your hands
from the hot pans.
6. To shut down the unit, press the ON switch/pad to
OFF. The steam generator will automatically drain.
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Cleaning
To keep your HY-12E/24EF Steamer in proper working condition, use the following procedure to clean the unit. This
regular cleaning will reduce the effort required to clean the steam generators and cavities.
A. Suggested Tools
1. Mild detergent
2. Stainless steel exterior cleaner such as Zepper
3. Steam generator de-liming agent, such as
Groen Delimer Descaler, Lime-Away® or an
equivalent. A liquid de-liming agent will be
easier to use than crystals or powders. See
the warning about chlorides, below.
4. De-greaser, such as EncompasS®, Malone
34®, Puritan Puribrute®, or Con-Lie®
5. Cloth or sponge
6. Plastic wool or a brush with soft bristles
7. Spray bottle
8. Measuring cup
9. Nylon pad
10. Towels
11. Plastic disposable gloves
12. Funnel
B. Procedure
1. Unit Exterior
a. Prepare a warm solution of the mild detergent as
instructed by the supplier. Wet a cloth with this
solution and wring it out. Use the moist cloth to
clean the outside of the unit. Do not allow freely
running liquid to touch the controls, the control
panel, any electrical part, or any open louver.
b. To remove material which may be stuck to the
unit, use plastic wool, a fiber brush, or a
plastic or rubber scraper with a detergent
solution.
c. Stainless steel surfaces may be polished with
a recognized stainless steel cleaner such as
Zepper®.
WARNING
DISCONNECT THE POWER SUPPLY
BEFORE CLEANING THE OUTSIDE OF
THE STEAMER.
KEEP WATER AN D CLEANING
SOLUTIONS OUT OF CONTROLS AND
ELECTRICAL COMPONENTS. NEVER
HOSE OR STEAM CLEAN ANY PART OF
THE UNIT.
DON’T MIX DE-LIMING AGENTS (ACID)
WI T H DE - GR EASE R S (ALK A L I)
ANYWHERE IN THE UNIT.
AV O I D C O N T A C T W I T H AN Y
CLEANERS, DE-LIMING AGENT OR DEGREASER AS RECOMMENDED BY THE
SUPPLIER. MANY ARE HARMFUL.
READ THE WARNINGS AND FOLLOW
THE DIRECTIONS!
EVEN WHEN THE UNIT HAS BEEN SHUT
OFF, DON’T PUT HANDS OR TOOLS
INTO THE COOKING CHAMBER UNTIL
THE FAN HAS STOPPED TURNING.
DON’T OPERATE THE UNIT UNLESS
THE TWO REMOVABLE INTERIOR
PARTITIONS HAVE BEEN PUT BACK IN
THEIR PROPER LOCATIONS.
DON’T USE ANY CLEANING OR DELIMING AGENT THAT CONTAINS ANY
SULFAMIC AGENT OR ANY CHLORIDE,
INCLUDING HYDROCHLORIC ACID
(HCl). TO CHECK FOR CHLORIDE
CONTENT SEE ANY MATERIAL SAFETY
DATA SHEETS PROVIDED BY THE
CLEANING AGENT MANUFACTURER.
IMPORTANT
DO NOT USE ANY METAL MATERIAL (SUCH AS METAL SPONGES) OR METAL IMPLEMENT (SUCH AS A
SPOON, SCRAPER OR WIRE BRUSH) THAT MIGHT SCRATCH THE SURFACE. SCRATCHES MAKE THE
SURFACE HARD TO CLEAN AND PROVIDE PLACES FOR BACTERIA TO GROW. DO NOT USE STEEL
WOOL, WHICH MAY LEAVE PARTICLES IMBEDDED IN THE SURFACE WHICH COULD EVENTUALLY CAUSE
CORROSION AND PITTING.
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Steam Generator and Cooking Chamber
Regular deliming, depending on your steamer usage
and local water quality, must be done to enhance
performance and prolong the life of your
HyPerSteam™ convection steamer. Steamer must be
turned off after every use to prevent lime scale buildup
- do not run steamer continuously.
ALWAYS USE HOT PADS OR MITTS WHEN
HANDLING HOT STEAMER PANELS OR RACKS.
RECOMMENDED TOOLS & CLEANERS:
- Groen Delimer/Descaler (Part Number
114800). Do NOT use any product
containing chlorides or sulfamic acid,
including hydrochloric acid .
- Nylon scrub pad, cloth and/or sponge
DELIMING STEPS (Use Touch Pad):
STEP 1 Press ON/OFF to turn steamer off.
Open door.
STEP 2 Let cavity cool for 5 minutes or
longer. While cool, wipe out cavity.
STEP 3 Pour 2 pints (4 cups) of delimer into
deliming port before delime cycle is
started and then close port. Doublestacked unit cavities must be delimed
separately. Select which cavity to
delime first.
STEP 4 Press and hold CLEAN while also
turning steamer on by pressing
ON/OFF, until only DELIME and
POWER lights remain on (all lights will
turn on, then off, except DELIME and
POWER).
STEP 5 Delime cycle will start, taking about 30
minutes. When delime cycle is
complete, DELIME light will appear,
DONE light will flash and beeper will
beep.
STEP 6 Press ON/OFF to turn steamer off. Let
cavity cool for 5 minutes or longer.
Open door, wipe out inside of cavity
and wipe door gasket. Close door.
STEP 7 To use steamer, press ON/OFF.
When READY light appears, steamer
is ready to use.
STEP 8 HY12E/HY12G DOUBLE STACK
ONLY: Double-stacked unit cavities
must be delimed separtely. Repeat
Step 1 through Step 8 to delime other
cavity.
NOTES:
- If DELIME light flashes rapidly (5 times per second),
press DELIME to restart delime cycle.
- If power outage occurs during deliming, delime cycle
must be restarted. Press DELIME.
- For best performance, do not interrupt delime cycle.
If delime cycle must be stopped, press ON/OFF to turn
on. Set timer for 5 minutes. After beeper beeps, press
ON/OFF to turn off. Let cavity cool for 5 minutes or
longer, carefully open door(s) and wipe out cavity
completely.
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Maintenance
The HY-12E Steamer is designed for minimum
maintenance, and no user adjustments should be
necessary. After prolonged use some parts may need
to be replaced.
If there is a need for service, only Groen personnel or
authorized Groen representatives should perform the
work.
Always supply water with a low mineral content that
meets the standards outlined in the water
Conditioning section of this manual.
If steam or condensate is seen leaking from around the
door, take the following steps:
1. Check the door gasket. Replace it if it is cracked
or split.
2. Inspect the cooking chamber drain to be sure it is
not blocked.
3. Adjust the door latch pin to allow for changes that
occur as the gasket ages.
a. Loosen the lock nut at the latch pin base, and
turn the latch pin 1/4 turn clockwise. Retighten
the lock nut.
b. Run the unit again to test for further leakage.
c. Repeat the adjustment as necessary until the
door fits tightly enough to prevent leakage.
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Troubleshooting
Your Groen Steamer 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 at the
back of this manual. If an item on the check list is marked with (X), it means that the work should be performed by a
factory-authorized service representative.
SYMPTOM WHO WHAT TO CHECK
No indicator lights when ON switch is
pressed
User a. Is electrical power supply connected?
b. Are building circuit breakers or fuses all right?
Steam generator does not fill with
water
User a. Is the ON switch depressed?
b. Is the electric cupply connected?
c. Is the water supply connected?
d. Is the water turned on?
e. Is the water pressure too low? (Below 30 PSI or
210 kPa)
f. Is the screen (filter) at the water connection
clogged?
g. Has the steam generator been de-limed? (Refer to
the Cleaning Section).
No steam User a. Is the ON switch depressed?
b. Is the water supply connected?
c. Is the water turned on?
d. Are the steamer doors open?
e. Has the steam generator been de-limed? (Refer to
the Cleaning Section).
SERVICE light comes on after ten
minutes. (See Cleaning Section)
User a. Is the water supply connected?
b. Is the water supply hose kinked?
c. Is the water turned on?
d. Has the steam generator been de-limed? (See
Cleaning Section
Excessive steam escaping from the
rear of unit
User a. Is the water spray hose kinked or obstructed?
Auth Service Rep
Only
b. Is the water solenoid connected? (X)
c. Is the drain properly vented? (X)
OM-HY-12E/24E
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OM-HY-12E/24E
Service Log
Model No.
Serial No.
Date Purchased
Purchase Order No.
Purchased From
Location
Date Installed
For Service Call
Date Maintenance Performed Performed by
OM-HY-12E/24E
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OM-HY-12E/24E
References
UNDERWRITERS LABORATORIES, INC.
333 Pfingsten Road
Northbrook, Illinois 60062
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Quincy, Massachusetts 002269
NFPA/70 The National Electric Code
NATIONAL SANITATION FOUNDATION
3475 Plymouth Road
Ann Arbor, Michigan 48106
NSF INTERNATIONAL
789 N. Dixboro Rd.
P.O. Box 130140
Ann Arbor, Michigan 48113-0140
OM-HY-12E/24E
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LIMITED WARRANTY TO
COMMERCIAL PURCHASERS*
(Continental U.S. and Canadian Sales Only)
Groen Foodservice Equipment (ìGroen Equipmentî) 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 an 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 {O.E.M.}), 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 the purchaser/user.
III. Groen, or an authorized service representative, will repair or replace, at Groenís 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 and 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, EXPRESS 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.)
Manufacturerís 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-HY-12E/24E
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Page 19
NOTES
OM-HY-12E/24E
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1055 Mendell Davis Drive
Jackson, MS 39272
Telephone 601 372-3903
Fax 601 373-9587
OM-HY-12E/24E
Part Number 148667
Revised 04/05
M HY-12E/24E, P N. 148667
1055 Mendell Davis Drive
Jackson, MS 39272
Telephone 601 372-3903
Fax 601 373-9587
www.groen.com
OM-HY-12E/24E
Part Number 148667 Rev. C
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