Groen HY-3E User manual

This manual provides information for:
OPERATOR MANUAL
IMPORTANT INFORMATION, KEEP FOR OPERATOR
PART NUMBER 128174, REV G (07/14)
HY-3E(CE) & HY-5E(CE)
HYPERSTEAM™
ATMOSPHERIC CONVECTION
STEAMER
INTERNATIONAL
· Self Contained
· Electric Heated
· Capacity: 3 or 5 Steamer Pans (305 x 508 x 64mm)
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.
READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND
WARNINGS CONTAINED IN THIS MANUAL.
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. Unied 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.
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax [phone]
unifiedbrands.net

2 OM-HY/3E(CE) & HY/5E(CE)
IMPORTANT - READ FIRST - IMPORTANT
THESE APPLIANCES MUST BE INSTALLED BY A COMPETENT PERSON IN CONFORMITY WITH THE INSTALLATION
AND SERVICING INSTRUCTIONS AND NATIONAL REGULATIONS IN FORCE AT THE TIME. PARTICULAR ATTENTION
MUST BE PAID TO THE FOLLOWING:
I. E. E. REGULATIONS FOR ELECTRICAL INSTALLATIONS
ELECTRICITY AT WORK REGULATIONS
HEALTH AND SAFETY AT WORK ACT
FIRE PRECAUTIONS ACT
LOCAL AND NATIONAL BUILDING REGULATIONS
USERS SHOULD BE CONVERSANT WITH THE APPROPRIATE PROVISIONS OF THE FIRE PRECAUTIONS ACT. IN
PARTICULAR THEY SHOULD BE AWARE OF THE NEED FOR REGULAR SERVICING BY A COMPETENT PERSON TO
ENSURE THE CONTINUED SAFE AND EFFICIENT PERFORMANCE OF THE APPLIANCE.
WARNING: TO PREVENT SHOCKS, ALL APPLIANCES WHETHER GAS OR ELECTRIC, MUST BE EARTHED.
UPON COMPLETION OF THE INSTALLATION, THE OWNERS MANUAL SHOULD BE HANDED TO THE
USERS AND THE INSTALLER SHOULD INSTRUCT THE RESPONSIBLE PERSON(S) IN THE CORRECT
OPERATION AND MAINTENANCE OF THE APPLIANCE.
THIS EQUIPMENT IS ONLY FOR PROFESSIONAL USE, AND SHALL BE OPERATED BY QUALIFIED PERSONS. IT
IS THE RESPONSIBILITY OF THE SUPERVISOR OR EQUIVALENT TO ENSURE THAT USERS WEAR SUITABLE
PROTECTIVE CLOTHING AND TO DRAW ATTENTION TO THE FACT THAT, SOME PARTS WILL, BY NECESSITY,
BECOME VERY HOT AND WILL CAUSE BURNS IF TOUCHED ACCIDENTALLY.
UNLESS OTHERWISE STATED, PARTS WHICH HAVE BEEN PROTECTED BY THE MANUFACTURER ARE NOT TO BE
ADJUSTED BY THE INSTALLER.
WARNING: AVOID ANY EXPOSURE TO THE STEAM COMING OUT WHEN OPENING THE DOOR. BEFORE
ATTEMPTING ANY SERVICING, ENSURE THAT THE ELECTRICAL SUPPLY IS DISCONNECTED.
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: SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.
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, CHARBROILER OR KETTLE.
CAUTION: LEVEL THE UNIT FRONT TO BACK, OR PITCH IT SLIGHTLY TO THE REAR, TO AVOID DRAINAGE
PROBLEMS.
WARNING: TO AVOID DAMAGE OR INJURY, FOLLOW THE WIRING DIAGRAM EXACTLY WHEN CONNECTING A
UNIT.
CAUTION: DO NOT USE PLASTIC PIPE. DRAIN MUST BE RATED FOR BOILING WATER.
WARNING: DO NOT CONNECT THE DRAIN DIRECTLY TO A BUILDING DRAIN.
WARNING: BLOCKING THE DRAIN IS HAZARDOUS.
IMPORTANT: IMPROPER DRAIN CONNECTION WILL VOID WARRANTY.

OM-HY/3E(CE) & HY/5E(CE) 3
IMPORTANT: DO NOT ALLOW ANY WATER TRAPS IN THE LINE. A TRAP CAN CAUSE PRESSURE TO BUILD UP
INSIDE THE CAVITY DURING STEAMING, WHICH WILL MAKE THE DOOR GASKET LEAK.
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 CHAMBER 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 DE-LIMING
AGENT MANUFACTURER.
WARNING: DO NOT MIX DE-LIMING AGENTS (ACID) AND DE-GREASERS (ALKALI).
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 LEFT AND 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.
NOTICE: DO NOT USE ANY DE-GREASER THAT CONTAINS POTASSIUM HYDROXIDE OR SODIUM HYDROXIDE
OR THAT IS ALKALINE.
WARNING: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR
AUTHORIZED DISTRIBUTOR VOIDS ALL WARRANTIES AND CAN RESULT IN BODILY INJURY TO THE
OPERATOR AND DAMAGE THE EQUIPMENT. SERVICE BY OTHER THAN FACTORY AUTHORIZED
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.
IMPORTANT - READ FIRST - IMPORTANT

4 OM-HY/3E(CE) & HY/5E(CE)
Important Operator Warnings ....................................................page 2-3
References.................................................................................... page 4
Equipment Description.................................................................. page 5
Inspection and Unpacking ............................................................ page 5
Water Conditioning ....................................................................... page 6
Installation & Start-Up ................................................................ page 7-9
Operation ................................................................................ page 10-11
Cleaning.................................................................................. page 12-13
Maintenance................................................................................. page 14
Troubleshooting............................................................................ page 14
Electrical Schematic ............................................................. page 21-22
Service Procedures ............................................................. page 23-34
Service Log ................................................................................. page 35
UNDERWRITERS LABORATORIES, INC.
333 Pngsten Road
Northbrook, Illinois 60062
NATIONAL FIRE PROTECTION ASSOCIATION
60 Batterymarch Park
Quincy, Massachusetts 02269
NFPA/70 The National Electrical Code
NSF INTERNATIONAL
789 N. Dixboro Rd.
P.O. Box 130140
Ann Arbor, Michigan 48113
KLENZADE SALES CENTER
ECOLAB, Inc.
370 Wabasha
St. Paul, Minnesota 55102
800 328-3663 or 612 293-2233
Table of Contents
References

OM-HY/3E(CE) & HY/5E(CE) 5
Your Groen HY-3E or HY-5E HyPerSteam Convection Steamer is designed to give years
of service. It has a stainless steel cavity (cooking chamber) which is served by an
independent atmospheric steam generator which is electrically heated. A powerful
blower circulates the steam in the cavity to increase heating efficiency.
The cavity holds up to three (HY-3E) or five (HY-5E) standard steam table pans. A 1.5
mm thick stainless steel case encloses the cavity, the steam generator and the control
compartment that houses electrical components. Door hinges are reversible (the door
may be set to open from the left or right). Operating Controls are on the front panel.
Model HY-3E steamers and HY-5E steamers are equipped with fully electronic
controls and a button activated, pre-programmed CLEAN cycle. These units are readily
identified by their unique control panels, with touch pad controls, and the distinctive
symbol for steam is integrated into the panel.
Both units are distinguished by the addition of a “fuse box” which allows the operator
to change fuses without removing panels.
The drain system on all models includes a spray condenser, which helps keep steam
from escaping from the chamber and cools drain water.
Equipment Description
The HY-5E steamer holds five standard 305 mm
x 508 mm x 64 mm deep pans.
The HY-3E steamer holds three standard 305
mm x 508 mm x 64 mm deep pans.
Inspection & Unpacking
The HY-3E or HY- 5E will be delivered completely assembled in a heavy shipping carton
attached to a skid. On receipt, inspect the carton carefully for exterior damage.
Carefully cut the straps around the carton and detach the sides of the carton from the
skid. Pull the carton up off the unit. Be careful to avoid personal injury or equipment
damage from staples which might be left in the carton walls.
Write down the model number, serial number and installation date. Keep this information
for reference. Space for these entries is provided at the top of the Service Log in the
back of this manual.
When starting installation, lift the unit straight up off the skid. Check packing materials
to make sure loose parts such as the condensate drip tray are not discarded with this
material.
CAUTION
SHIPPING STRAPS ARE UNDER TENSION
AND CAN SNAP BACK WHEN CUT.
CAUTION
THIS UNIT WEIGHS 82 KG (HY-3E) OR 105 KG
(HY-5E). YOU SHOULD GET HELP AS NEEDED
TO LIFT THIS WEIGHT SAFELY.

6 OM-HY/3E(CE) & HY/5E(CE)
Water Conditioning
It is essential to supply the steam generator with water that will not form scale or cause
corrosion. Even though the steam generator is engineered to minimize scale formation
and the effects of corrosion, their development depends on the quality of your water and
the number of hours per day you operate the equipment.
Most water supplies are full of minerals and chemicals which are not suitable for use in
a steam generator.
Water quality varies from state to state and city to city. It is necessary that you know
and understand the quality of the water you are using. Your water utility can tell you
about the minerals and chemicals in your water. The water going to the steam generator
should be within these guidelines
Water Pressure 30-60 psi
PH 7 to 9
Hardness less than 60 ppm
TDS 30 to 60 ppm
Chlorine and Chloramine less than 0.1 ppm
Total Chloride less than 30 ppm
Silica less than 12 ppm
Undissolved Solids less than 5 microns
1. Do not rely on unproven water treatments which are sold for scale prevention or
scale removal. They don’t always work. The best way to prevent scale is to supply
the purest possible water (30 - 60 ppm TDS).
2. If your water contains scale-forming minerals, as most water does, use a well-
maintained water softener. Whether an exchangeable softener cartridge or a
regenerating system is chosen, a regular exchange schedule is essential.
3. Installing a water meter between the softener and the steamer will provide an
accurate gauge of water use, and will help determine when to exchange cartridges
or regenerate the softener. Using a water softener will provide longer generator life,
higher steam capacity, and reduce maintenance requirements.
4. If you notice a slowdown in steam production, have the unit checked for scale
build-up. Heavy scale reduces the unit’s ability to boil water and can even cause
heating elements in the steam generator to overheat and burn out.
A BSPT connection is provided
at the rear of the steamer.
The optional second water connection can
reduce treated water requirements.

OM-HY/3E(CE) & HY/5E(CE) 7
Installation & 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.
ELECTRICAL SUPPLY CONNECTION
1. Panel Removal
Open the wiring and control panel by removing the screws on the right side panel.
Slide the panel forward, and set it aside.
2. Supply Voltage
The unit must be operated at the rated nameplate voltage.
3. Phase Selection
Refer to heater schematics (Pages 21 and 22) for wiring information.
4. 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 near the
terminal block.
5. Supply Wire
To determine the type of wire you need for the power supply, find the operating
voltage and phase on the unit data plate. Use the correct wire size to meet the
current demand as shown in the table, below and as required by regulations. The
knockout hole is sized for a 35 mm conduit fitting.
The HY-3E HyPerSteam™ and HY-5E model convection steamers operate at 400
Volts (Three Phase ‘delta” with Neutral) or 230 Volts (One Phase). Separate part
numbers are offered for 50 Hz and 60 Hz operation to supply the appropriate
electro-mechanical timer, since they synchronize with the Mains Power frequency.
Model Voltage Max. Kw Nominal
Current Demands
HY-3E 400 - 3 Phase 8 13 Amps
230 - 1 Phase 8 33 Amps
HY-5E 400 - 3 Phase 15.5 23 Amps
230 - 1 Phase 15.5 63 Amps
Connect appropriate wiring as described in the wiring diagram located on the
inside of the unit’s right side panel. Incoming power connections are shown at left.
CAUTION
DO NOT INSTALL THE UNIT WITH THE RIGHT
OR LEFT SIDE VENTS BLOCKED OR WITHIN
305 mm OF A HEAT SOURCE (SUCH AS A
BRAISING PAN, DEEP FRYER, CHAR BROILER
OR KETTLE). TO AVOID DRAINAGE PROBLEMS,
LEVEL THE UNIT FRONT TO BACK.
CAUTION
THE UNIT MUST HAVE A SEPARATE GROUND
WIRE FOR SAFE OPERATION.
WARNING
TO AVOID DAMAGE OR PERSONAL INJURY,
FOLLOW THE ELECTRICAL SCHEMATIC
EXACTLY WHEN CONNECTING THE UNIT.
HY-3E Electrical Connections
HY-5E Terminal Block

8 OM-HY/3E(CE) & HY/5E(CE)
6. Equipotential Terminal
In accordance with national regulations, each unit are fitted with an equipotential
terminal.
7. Branch Circuit Protection
Each HY-3E Steamer should have its own branch circuit protection. Current and
power demands for the different units are as shown in the table on page seven.
WATER CONNECTION(S)
Water pressure in the line should be between 30 and 60 PSIG (210 and 420 kPa) and
deliver a flow rate of 5.7 to 11.4 liters per minute. If pressure is above 60 PSIG (420
kPa), a pressure regulator will be needed.
A 3/4” BSPT connector is used to attach the water supply to the inlet valves. Minimum
water feed line diameter is 1/2” (13 mm). Use a washer in the hose connection. Do not
allow the connections to leak, no matter how slowly. Treated (softened) water goes to the
right (seen from the rear of the unit) and untreated water goes to the left. Connections
are made as shown on the previous pages.
On each water line, install a WRAS approved double-check valve or an equally
effective back flow preventative device in the incoming cold water lines at the point
of connections to the steamer and in compliance with all local plumbing codes. This
installation must be per WRAS-IRN R160 Schedule 2-15 (1).
Water Quality Requirements: For proper steam generator performance, Total Dissolved
Solids (TDS) should not exceed 30 parts per million (ppm), and the water pH should be
7.1 or higher.
DRAIN CONNECTION
Level the steamer front to back, or even pitch it slightly to the rear by adjusting the bullet
feet on the stand or cabinet base.
A two inch (50mm) [HY-5E] or 1½ inch (38 mm) [HY-3E] ID hose should be attached to
the drain pipe and elbow supplied. It must be rated for 100ºC water.
There must be at least one-half inch free air gap between the end of the hose and the
building drain. The free air gap should be as close as possible to the unit drain. There
must also be no other elbows or other restrictions between the unit drain and the two
inch free air gap.
Install the drain line with a constant downward pitch. IMPORTANT: Do not allow water
traps in the line. A trap can cause pressure build-up in the cavity, which may cause the
door gasket to leak.
Installation & Start-Up
The equipotential terminal is located
on the left rear of the units.
WARNING
DO NOT CONNECT THE DRAIN DIRECTLY TO A
BUILDING DRAIN. BLOCKING THE DRAIN IS
HAZARDOUS.
CAUTION
DO NOT USE PLASTIC PIPE. DRAIN MUST BE
RATED FOR VERY HOT WATER.

OM-HY/3E(CE) & HY/5E(CE) 9
FACTORY STACKED UNITS
This section is applicable only if you are installing factory-stacked units. If you plan to
stack steamers yourself, whether purchasing a new one for stacking or a kit to stack
two units you already own, you will require OM-HY-3E(S), RETROFIT SUPPLEMENT (Part
Number 121014). These instructions are also valid for stacking HY-5E steamers.
Installing stacked steamers is similar to installing a single unit. The steamers are stacked
and assembled at the factory and delivered with the water connections and drain hoses
required for a single point connection.
1. Water Connection
The same water supply connection is used for both units. At the water level inlet
valve a 3/4” BSPT connector (garden hose type) is used for the water supply.
Treated water (softened) is connected to the right valve fitting (looking from the
rear of the unit) and untreated water to the left fitting.
2. Electrical Supply Connection
Separate, individual electrical connections will be required for each steamer in the
stack. Each Steamer must have its own branch circuit protection.
3. Water Connection
Steamers must be leveled front to back, or pitched to the rear (maximum 6 mm) by
adjusting the bullet feet on the cabinet or stand base.
For HY-3E a 38 mm (1½ inch) and for HY-5E or 50 mm (2 inch) ID hose may be
attached to the unit drain. It must be rated for 100ºC.
Ensure that there is a free air gap between the end of the unit drain and the
building drain. This gap should be as close as possible to the unit drain. Do not
allow elbows or restrictions between the unit and the free air gap.
COUNTER-MOUNTED UNITS
This section is applicable if the steamer will be mounted to a counter. All four edges of
the bottom of the steamer must be sealed with RTV to the counter if the 4 inch legs are
not used. Counter must be made of a noncombustible material such as metal or tile.
Installation & Start-Up
WARNING
DO NOT CONNECT THE UNIT DRAIN DIRECTLY
TO THE BUILDING DRAIN.
CAUTION
DO NOT USE PLASTIC PIPE. DRAIN MUST BE
RATED FOR VERY HOT WATER.
Rear view of (2) HY-5E. NOTE: Some drain parts
(elbow, clamps) for single models are packed
inside the steamer cavity. Stacked units are
factory assembled. Installation is the same for
stacked HY-5E and HY-3E units.
Proper Drain Line Connection. Drain Line must
have a constant downward pitch of at least 6
mm (¼”) per foot. Connection is 38 mm (1½”)
for HY-3E, 50 mm (2”) for HY-5E. (3)HY-3E
shown.

10 OM-HY/3E(CE) & HY/5E(CE)
CONTROLS
Operator controls are on the front right of the unit. The control panel has the following
touch pads and indicator lights. (Your controls may have either words or the symbols
shown below):
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 CLEANING indicator lights 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 SERVICE light flashes briefly
every few seconds, but the unit continues to operate. De-lime the unit as
soon as possible. If the problem continues, both probes may fail. Then the
steamer stops working, the light will flash repeatedly and the beeper will
sound. At this point you must turn off the power and contact an Authorized
Groen Service Representative for repair.
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 light goes out.
The TIMING indicator light stays on when the timer is running.
The CLEAN touch pad is used to start the automatic 50 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 reaches OFF. The steaming
stops, a red light 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.
Operation
WARNING
ANY POTENTIAL USER OF THE EQUIPMENT
SHOULD BE TRAINED IN SAFE AND CORRECT
OPERATING PROCEDURES.
WARNING
WHEN YOU OPEN THE DOOR, STAY AWAY
FROM THE STEAM COMING OUT OF THE
UNIT. THE STEAM CAN CAUSE BURNS.

OM-HY/3E(CE) & HY/5E(CE) 11
Operation
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 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.
• 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.
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/OFF touch pad to OFF. The steam generator
will automatically drain.
WARNING
WHEN YOU OPEN THE DOOR, STAY AWAY
FROM THE STEAM COMING OUT OF THE
UNIT. THE STEAM CAN CAUSE BURNS.
Done Light
Manual
Position/Light
Steamer Timer
Timing
Indicator Light
Power On/Off
Touch Pad
Power
Indicator Light
Ready
Indicator Light
Service
(“De-Lime Me”)
Indicator Light
Cleaning
Indicator Light
Clean Cycle
Touch Pad
High Temp
Indicator Light

12 OM-HY/3E(CE) & HY/5E(CE)
Cleaning
WARNING
DISCONNECT THE POWER SUPPLY BEFORE
CLEANING THE OUTSIDE OF THE STEAMER.
KEEP WATER AND 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) WITH DE-
GREASERS (ALKALI) ANYWHERE IN THE UNIT.
AVOID CONTACT WITH ANY CLEANERS,
DE-LIMING AGENT OR DE-GREASER 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.
To keep your HY-3E or HY-5E 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 generator and cavity.
SUGGESTED TOOLS
1. Mild detergent
2. Stainless steel exterior cleaner such as Zepper®
3. Steam generator de-liming agent, such as Groen Delimer Descaler. A liquid
de-liming agent will be easier to use than crystals or powders. See the warning
about chlorides.
4. De-greaser
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
PROCEDURE
1. Outside
a. Prepare a warm solution of the mild detergent as instructed by the sup-
plier. 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®.
2. Steam Generator and Cooking Chamber
The steamer cavity and steam generator may be cleaned separately. Regular de-
liming, depending on your steamer usage and local water quality, must be done
to enhance performance and prolong the life of your HyPerSteam™ convec-
tion steamer. Steamer must be turned off after every use to prevent lime scale
buildup - do not run steamer continuously. When cleaning is scheduled, or the
SERVICE light is on, follow the simple deliming instructions on the next page.
NOTE: ALWAYS USE HOT PADS OR MITTS WHEN HANDLING HOT STEAMER PAN-
ELS OR RACKS. DON’T ALLOW DE-LIMING AGENTS TO MIX WITH DEGREASERS.
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.
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.

OM-HY/3E(CE) & HY/5E(CE) 13
Cleaning
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. Close door.
STEP 3
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 4
After 5 minutes, beeper will beep rapidly, signaling you to add Groen Delimer/ Des-
caler. Door(s) must remain closed for entire delime cycle.
STEP 5
Pour 1 pint (2 cups) of delimer PER CAVITY into upper and /or lower deliming port(s)
and then close port(s). Press CLEAN. Double-stacked unit cavities may be delimed
together or seperately
STEP 6
Delime cycle will start, taking about 30 minutes. When delime cycle is complete, DE-
LIME light will appear, DONE light will flash and beeper will beep.
STEP 7
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 8
To use steamer, press ON/OFF. When READY light appears, steamer is ready to use.
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.
CAUTION
NEVER LEAVE A CHLORINE SANITIZER IN
CONTACT WITH STAINLESS STEEL
SURFACES FOR LONGER THAN 30
MINUTES. LONGER CONTACT CAN
CAUSE CORROSION.
Once the cavity has cooled, reach in and
remove the fan baffle partition by lifting it
upward and drawing it toward the center of
the cavity.
Pour two cups of Groen de-liming solution into
the de-liming port.

14 OM-HY/3E(CE) & HY/5E(CE)
Maintenance
HY-3E and HY-5E Steamers are designed for minimum maintenance, and no user
adjustments should be necessary. Certain parts may need replacement after
prolonged use. 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 count
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 if it is cracked or split.
2. Inspect the cooking chamber drain to be sure it is not blocked.
3. Adjust the latch pin to allow for changes that might occur as the gasket ages.
a. Loosen the lock nut at the base of the latch pin. Turn the latch pin ¼ turn
clockwise, and re-tighten the lock nut.
b. After adjustment, run the unit to test for further steam leakage.
c. If there is still leakage, repeat the adjustment.
d. Continue adjusting the pin clockwise until the door fits tightly enough to
prevent leakage.
NOTE
THE UNIT CONTAINS NO FUSES THAT SHOULD
BE REPLACED BY THE OPERATOR.
Troubleshooting
This 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. If an item on the check list
is marked with (X), it means that the work should be done by a factory-authorized service representative.
SYMPTOM WHO WHAT TO CHECK
Steam generator does not ll
with water.
User a. Is the ON switch depressed?
b. Is the water supply connected?
c. Is the water turned on?
d. Check for low water pressure (less than 30 PSI or 210 kPa) OR low
water ow (less than 5.7 liters (1.5 gallons) per minute.
e. Is the screen at the water connection clogged?
f. Has the steam generator been delimed?
No steam. User a. Is the ON switch depressed?
b. Is the water supply connected?
c. Is the water turned on?
d. Are steamer doors open?
e. Is the steam generator limed up?
Service light comes on after four
minutes.
User a. Is the water supply connected?
b. Is the water turned on?
c. Has the unit been delimed? (Refer to Cleaning Section)
Excessive steam escaping from
rear of unit.
User a. Is the water spray hose kinked or obstructed?
Authorized
Service Rep Only
b. Is the water spray solenoid connected? X
c. Is the drain properly vented? X
High Limit Indicator Light is
“ON.”
Authorized
Service Rep Only
Reset the high limit thermostat after checking the
cause of high temperature and correcting it. (X)
(See Service Section)

OM-HY/3E(CE) & HY/5E(CE) 15
Parts List
Model HY-3E (CE)
Key Description Part #
1a RIGHT SIDE PANEL 123134
1b LEFT SIDE PANEL 123135
2DOOR ASSY, COMPLETE 094150
3 DOOR HANDLE 070123
4 DOOR GASKET 094147
5 LEFT PAN RACK 094148
6 BLOWER COVER/RACK 096788
7 DOOR LOCKING PIN 078914
8 DOOR PIN LOCK NUT 003823
11 CAVITY FAN 096790
12a TIMER, 50 HZ 100983
12b TIMER, 60 HZ 096826
13 TIMER KNOB 123100
17 MYLAR OVERLAY PLATE
(UNIV. SYMBOLS)
128215
18 TOP PANEL 123133
19 FUSE BOX -
19a COVER, FUSE BOX 119846
20 BACK PANEL 125752
22 DRIP TRAY 094151
23 TIMER FASTENER NUT 101145
25 DIVERTER & VENT ASSY 123115
26 WATER INLET VALVE - 2
USED
071235
- HEAT SHIELD 100934
- OPTIONAL LEGS 118127
- PC BOARD COVER 041121
-EQUIPOTENTIAL TERMINAL* 119806
- DRAIN KIT* 122021
-WATER INLET ADAPTER
ASSY*
127393
27 OPTIONAL STAND 122144
*Item not depicted/called out in drawing or photographs

16 OM-HY/3E(CE) & HY/5E(CE)
Parts List
Model HY-3E (CE)
Key Description Part #
1a HEATER ELEM ASSY W/T-
STAT 230V
128224
1b HEATER ELEM ASSY W/T-
STAT 400V
128224
1c HEATER ELEM ASSY W/ OUT
T-STAT 230V
123102
1d HEATER ELEM ASSY W/OUT
T-STAT 400V
123102
2 HEATER ELEMENT GASKET 042366
3HI LIMIT THERMOSTAT 122009
4FUSE, 6 AMP 119823
5 WATER LEVEL PROBES 070178
6 WATER VALVE DUAL SUPPLY 100934
7 TRANSFORMER 208/240V
PRIMARY/24V SECONDARY
75VA
106234
8 TRANSFORMER 115/230V
PRIMARY/20VAC CT SEC-
ONDARY
119815
9 HIGH HEAT CONTACTOR 119811
- THERMOSTAT CLAMP* 093482
*Item not depicted/called out in drawing or photographs

OM-HY/3E(CE) & HY/5E(CE) 17
Parts List
Model HY-3E (CE)
Key Description Part #
1a TIMER, 50 HZ 100983
1b TIMER, 60 HZ 096826
2 DOOR SWITCH 096857
3 STEAM PORT 118103
4 STEAM PORT GASKET 099250
5FAN MOTOR ASSEMBLY 096740
6 MOTOR SHAFT SEAL 096868
7 UPPER STEAM HOSE 123867
8 LOWER CLEAN HOSE 100926
9 HOSE CLAMPS 1-3/8” 127525
10 ELECTRIC HEATER GASKET 042366
11 TRANSFORMER 208/240V
PRI. 24V SEC 106234
12 WATER LEVEL PROBES 070178
13 ELECTRIC HEATER, 230/400
VOLT 123102
14 HIGH LIMIT THERMOSTAT,
MANUAL RESET 122009
15 STEAM GENERATOR 125707
16 INSULATION STEAM GEN-
ERATOR 100922
17 FUSE BLOCK 096809
18 TERMINAL BLOCK 088214
19 MOTOR CAPACITOR 096813
20 READY THERMOSTAT 088865
21 6 AMP FUSES 119823
22 HIGH HEAT CONTACTOR 119811
23 TRANSFORMER, 115/230V
PRI. 20V SEC. 119815
24 PC BOARD, STEAMER
CONTROL 119801
25 PC BOARD, LIGHT & TIMER 119817
26 RELAY, 24 VOLT AC 119814
27 RELAY, 12 VOLT DC 119813
-WATER SUPPLY INLET
MOUNTING PLATE 101199
-DRAIN VALVE* 071234
-DRAIN VALVE BRACKET* 099991
-DRAIN HOSE, STEAM GEN-
ERATOR* 096806
- CONDENSATE SPRAY HOSE* 096807
-HARNESSES*-CALL GROEN AUTHORIZED SERVICE
AGENT -
- CAVITY* 096825
- CAVITY INSULATION* 096738
- WATER FLOW REDUCER* 112720
-STEAM GENERATOR W/
INSULATION & PROBES* 123199
- PC BOARD COVER* 119806
- WATER FILL HOSE* 096773
- DRAIN KIT* 118948
*Item not depicted/called out in drawing or photographs

18 OM-HY/3E(CE) & HY/5E(CE)
Parts List
Model HY-5E (CE)
Key Description Part #
1 LEFT PAN RACK 125901
2DOOR ASSEMBLY,
COMPLETE
125922
3 DOOR GASKET 125907
4 DOOR HANDLE 070123
5DRIP TRAY 094151
6 TOP PANEL 123133
7 BLOWER COVER/RIGHT PAN
RACK
125902
8 TIMER 100983
9 TIMER KNOB 123100
10 RIGHT SIDE PANEL 125930
11 DOOR LOCKING PIN 078914
12 DOOR PIN LOCK NUT 003823
13 MYLAR OVERLAY PLATE
(INT’L SYMBOLS)
128403
14 WATER VALVE, DUAL SUPPLY 100934
- WATER SUPPLY INLET
MOUNTING PLATE
101199
-WATER INLET ADAPTER
ASSY (3/4 BSPT)
122144
15 BACK PANEL 125981
16 LEFT SIDE PANEL 125931
17 DIVERTER AND VENT ASSY 125918
-DRAIN VALVE 071234
-BRACKET, DRAIN VALVE 099991
-EQUIPOTENTIAL TERMINAL
ASSY
122021
- DRAIN KIT 128237
- WATER VALVE COVER PLATE
DUAL SUPPLY
101199
- GROEN DE-LIMER/DE-
SCALER
114800
*Item not depicted/called out in drawing or photographs

OM-HY/3E(CE) & HY/5E(CE) 19
Parts List
Model HY-5E (CE)

20 OM-HY/3E(CE) & HY/5E(CE)
Parts List
Model HY-5E (CE)
Key Description Part #
1PLATFORM ASSEMBLY 125967
2FAN MOTOR ASSEMBLY 096740
3CHASSIS ASSEMBLY, ELEC-
TRICA
119852
4FUSE BLOCK ASSEMBLY 119848
4a FUSE HOLDER 096809
4b FUSE, 6 AMP 119823
5 COVER, FUSE BOX 119846
6HEATER ELEMENT ASSEM-
BLY WITH THERMOSTAT
230/400V
128224
6a HEATER ELEMENT ASSEM-
BLY WITHOUT THERMOSTAT
230/400V
123102
6b HEATER ELEMENT GASKET 042366
7LINE CONNECTION ASSEM-
BLY
128395
8READY THERMOSTAT 088865
9 PLASTISOL BOOT 101143
10 KIT, VALVE WATER INLET AS-
SEMBLY, DUAL SUPPLY
088816
11a TIMER, STEAMER, 50 HZ 100983
11b TIMER, STEAMER, 60 HZ 096826
12 KNOB, TIMER 123100
13 STEAMER CONTROL PC
BOARD
119801
14 LIGHT & TIMER PC BOARD 119817
15 STANDOFF, HEX M-F 6-32
X 3/4
119826
16 STANDOFF, HEX M-F 6-32
X 1-1/4
119827
17 HARNESS, TIMER MOTOR 123120
18 JUMPER, CTRL BD TO DIS-
PLAY BD
123122
19 COVER, CONTROL PANEL 119806
20 NUT, KEPS, 6-32 071289
Key Description Part #
21 NUT, KEPS 10-32 071256
22 NUT, LOCK NYLON INSERT
6-32
119855
23 SCREW, RD HD SELF-TAP-
PING 6-32 X 3/8
012398
24 SCREW SLOT HEX WASHER
8-32 X 1/4
074242
25 SCREW SLOT HEX WASHER
8-32 X 1/2
009696
26 PHASE, WIRE FOR TERMINAL
BLOCK
094155
27 NUT, ROTARY SHAFT SEAL
(TIMER)
101145
29 PLUG, PIPE ¼ NPT 304 SS 004145
30 HOSE 1-1/2 ID X 20” 088846
31 CLAMP, CONSTANT TENSION
1-3/4”
126011
32 CLAMP, CONSTANT TENSION
1"
127524
33 HOSE, CLEAN, 18” 125954
34 TRANSFORMER 208/240 V 106234
35 HIGH HEAT CONTACTOR 119811
37 TRANSFORMER 20 V AC CT 119815
38 RELAY, 24 V AC 119814
39 RELAY, 12 V DC 119813
40 TERMINAL BLOCK 119850
42 DOOR SWITCH (TWO USED) 096857
43 STEAM PORT 125988
44 STEAM PORT GASKET 099250
45 MOTOR CAPACITOR 096813
- WATER FILL HOSE* 125993
-STEAM GENERATOR WITH
INSULATION, PROBES, RE-
LIEF VALVE & FITTINGS*
125938
- MOTOR SHAFT SEAL* 096868
- CONDENSATE SPRAY HOSE* 125994
- WATER FLOW REDUCER* 088877
*Item not depicted/called out in drawing or photographs