OPERATOR MANUAL &
SERVICE MANUAL
IMPORTANT INFORMATION, KEEP FOR OPERATOR
This manual provides information for:
HY-6G(CE) HYPERSTEAM™
ATMOSPHERIC CONVECTION
STEAMER
· Self-Contained
INTERNATIONAL
· Gas Heated
· Capacity: 6 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.
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. Unified 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 file
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 888-864-7636
groen.com
PART NUMBER 128805, REV. C (4/06)
Download from Www.Somanuals.com. All Manuals Search And Download.
Table of Contents
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
EQUIPMENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSPECTION AND UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WATER CONDITIONING/REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION, START-UP AND CONVERSION INSTRUCTIONS . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10.0 SERVICE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11.0 SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
12.0 SERVICE LOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
WARRANTY PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
References
UNDERWRITERS LABORATORIES, INC.
333 Pfingsten Road
NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Northbrook, Illinois 60062
Quincy, Massachusetts 02269
NFPA/70 The National Electrical Code
KLENZADE SALES CENTER
ECOLAB, Inc.
370 Wabasha
NATIONAL SANITATION FOUNDATION
3475 Plymouth Road
St. Paul, Minnesota 55102
800 328-3663 or 612 293-2233
Ann Arbor, Michigan 48106
OM/SM-HY-6G(CE)
ꢁ
Download from Www.Somanuals.com. All Manuals Search And Download.
1.0 - Equipment Description
Your Groen HY-6G (CE) HyPerSteam Convection
Steamer is designed to give years of service. It has
two stainless steel cavities (cooking chambers) which
are served by twin, independent atmospheric steam
generators which are gas-heated. A powerful blower
circulates the steam in each cavity to increase heating
efficiency.
Each cavity holds up to three steam table pans (305 x
508 x 64 mm). A 1.5 mm stainless steel case
encloses the cavities, the steam generators and the
control compartment that houses electrical
components. Door hinges are reversible (the doors
may be set to open from the left or right). Operating
Controls are on the front panel.
HY-6G (CE) steamers are equipped with fully
electronic controls and a button-activated,
preprogrammed CLEAN cycle.
The HY-6G (CE) has two independent
cavities, each with its own base-mounted
steam generator.
The drain system includes a spray condenser, which
helps keep steam from escaping down the
condensate drain.
2.0 - Inspection and Unpacking
Your HY-6G HyPerSteam will be delivered completely
assembled in a heavy shipping carton and attached to
a skid. On receipt, inspect the carton carefully for
exterior damage.
CAUTION
SHIPPING STRAPS ARE UNDER TENSION AND
CAN SNAP BACK WHEN CUT.
Carefully cut the straps around the carton and detach
the sides of the carton from the skid. Be careful to
avoid personal injury. Strap edges may be very
sharp, particularly where cut. Write down the model
number, serial number and installation date. Space
for these entries is provided in the Service Log at the
back of this manual. Keep the manual near the
equipment for reference and update as needed.
CAUTION
THIS UNIT WEIGHS 550 LBS. (250 KG). GET
HELP AS NEEDED AND USE MATERIAL
HANDLING EQUIPMENT TO MOVE IT.
When installing, use material handling equipment to
lift the unit straight up from the skid. Check packing
materials for any loose parts.
The unit will be delivered in a heavy carton,
strapped to a wooden skid.
ꢂ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
3.0 - Water Conditioning
It is essential to supply the steam generator with
3.2 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 system is essential.
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.
3.3 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.
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 can 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:
3.4 If you notice a slowdown in steam production,
check the unit 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.
3.1 Do not rely on unproven water treatments
which are sold as scale prevention or scale
removers. They don’t always work. The best
way to prevent scale is to supply the purest
possible water (10 - 30 ppm TDS).
MINIMIZE SCALE PROBLEMS BY USING AND
MAINTAINING A SOFTENER, AND BY CLEANING
THE STEAMER REGULARLY.
The BPST Connection on the right rear side of the steamer.
OM/SM-HY-6G(CE)
ꢃ
Download from Www.Somanuals.com. All Manuals Search And Download.
4.0 - Installation, Start-Up and Conversion
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.
CAUTION
DO NOT INSTALL THE UNIT WITH THE RIGHT SIDE VENTS BLOCKED OR WITHIN 30 CENTIMETERS 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, OR PITCH IT SLIGHTLY TO THE
REAR.
4.1 General
4.1.1 Model Number and Dimensions
disconnected from the gas supply system during
any pressure testing of that system at test pressures
in excess of ½ PSI (3.45 kPa). It must be isolated
from the gas supply piping system by closing its
individual manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressures equal to or less than ½ PSI (3.45 kPa).
WIDTH DEPTH HEIGHT WEIGHT
mm (in.) mm (in,) mm (in.) Kg (lbs)
MODEL
549
(21.6)
894
(35.2)
1464
(57.6)
193
(425)
HY-6G(CE)
4.2 Electrical Supply Connection
4.1.2 Siting and Clearances
The unit is designed for connection to fixed wiring. A
suitably rated isolating switch with contact separation
of at least 3 mm on both poles must be fitted to the
installation. Wiring must be executed in accordance
with the regulations listed on page 2 of this manual.
The HY-6G(CE) steamer is suitable for installation in
combustible and noncombustible locations.
Minimum clearances for installation are:
Right Side
Left Side
Rear of Flue
300 mm (12 inches)
0 mm (0 inches)
150 mm (6 inches)
Cable entry is at the bottom rear right side of the
appliance. To gain access the panel must be
removed. Open the lower front panel by removing its
screws. Lift the panel and swing its bottom toward
you. Set the panel aside.
However, for easy service at least 300 mm (12
inches) clearance is required for the right side of
the unit, and it may not be installed within 300 mm
(12 inches) of a heat source, as stated in the
Caution above.
Provide 230 Volt, 50 Hz, Single Phase, 15 Ampere
service. Maximum load is 2½ amps. The electrical
schematic is located in the service compartment. A
copy is also printed at the rear of this manual.
The unit must be installed in a well-ventilated room
with an adequate air supply. The steamer must be
installed beneath a ventilation hood, since gas
combustion products exit the appliance.
CAUTION
THE UNIT MUST HAVE A SEPARATE EARTHING
WIRE FOR SAFE OPERATION.
Any item which might obstruct or restrict the flow of
air for combustion and ventilation must be removed.
Do not obstruct the flue cover or any front, side, rear,
or top vents after installation.
4.3 Gas Supply Connection
Incoming service must be of sufficient size to supply
full rate without excessive pressure drop. A gas
meter is connected to the service pipe by the Gas
Supplier. Any existing meter should be checked out
by the Gas Supplier to ensure that it has adequate
capacity to provide the required rate of gas to the
steamer, in addition to any other equipment.
The area directly around the appliance must be
cleared of all combustible material. The installation
must conform with local codes or, in the absence of
local codes, with the National Fuel Gas Code, ANSI
Z223.1, latest edition, including the following:
The unit and its individual shutoff valve must be
6
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
4.3.2 Injector Diameters
GAS INPUT RATE BTU/HR AND KW
Natural Gas
Propane Gas
Injector No. of
Dia. (mm) Injectors Dia. (mm) Injectors
Natural Gas
9.25 mBar
(3.7 in. W.C)
Propane Gas
26.25 mBar
(10.5 in. W.C.)
HY-6G(CE)
Injector
No. of
Main
Burner
Individual
Steamer Cavity
40950 BTU/hr
12 KW
40950 BTU/hr
12 KW
1.49
0.99
0.60
4 x 2
1 x 2
1
0.94
0.57
0.25
4 x 2
1 x 2
1
Standby
Burner
Total
Both Cavities
81900 BTU/hr
24 KW
81900 BTU/hr
24 KW
Pilot
Burner
Installation pipe work must be fitted in accordance with
IGE/UP/2.
4.3.3 Burner Air Adjustment
The appliance governor is suitable for both natural and
propane gas without conversion. The governor is
incorporated in the gas control valve, which is inside the
control cabinet.
The unit is equipped with fixed aeration type burners
which have no provision for air inlet adjustment.
Connection to the gas supply can be completed with ½”
B.S.P.T. pipe. Although the immediate connection to the
appliance is ½” B.S.P.T., gas supply piping must be large
enough to provide 90,000 BTU/hour. Minimum supply
pressure must be 20 mBar for natural gas, or 37 mBar
for propane gas.
An isolating cock must be located close to the appliance
to allow shut down in an emergency, or for servicing.
The installation must be tested for gas soundness and
purged as specified in IGE/UP/1.
4.3.1 Gas Pressure Adjustment
Gas pressure has been set at the factory but should be
checked by connecting a manometer to the pressure tap
on the burner manifold. The adjusted gas pressures is
shown in the table below.
Gas input is through a ½ inch B.S.P.T connection
at the left rear of the unit.
G20 Natural Gas
G31 Propane Gas
4.3.4 Equipotential Terminal
mBar
Inch W.C.
3.7
mBar
Inch W.C.
10.5
In accordance with national regulations, each unit is
fitted with an equipotential terminal.
9.25
26.25
If necessary, the gas pressure may be readjusted as
described in the Service Manual.
4.4 Water Supply Connection
The HY-6G CE model is fitted for a 3/4 inch B.S.P.T.
cold water connection. The water supply must be
provided at a rate of not less than 2.7 liters (0.70
gallons) per minute. Pressure must be 2.0 to 4.0 Bar
(30 to 60 PSI) maximum.
NOTE: With reference to gas rate, pressure adjustments
and conversions, this appliance is CE-approved for use
with C20 natural gas and G31 propane gas in Ireland
and the United Kingdom.
Use of the appliance with non-approved gases in a listed
country, or use in other countries, will void CE
certification.
Water quality minimums require totally dissolved
solids (T.D.S.) of 30 parts per million maximum, and
a water pH of 7.0 or greater. If the available water
supply fails to meet these requirements, water
treatment equipment must be provided to ensure
steamer reliability and operating life.
OM/SM-HY-6G(CE)
ꢄ
Download from Www.Somanuals.com. All Manuals Search And Download.
Install a WRAS approved double-check valve or an
equally effective backflow preventive device in the
incoming cold water line at the point of connnection(s)
to the steamer and in compliance with all local plumbing
codes. This installation must be per WRAS-IRN R160
Schedule 2-15(1). For units with the dual water
connection option, a double-check valve shall be
installed on each water line.
4.6 Initial Start-Up
After the HY-6G(CE) Steamer has been installed,
test it to ensure that the unit is operating correctly.
4.6.1 Remove all literature and packing materials
from the interior and exterior of the unit.
4.6.2 Make sure the water supply line is open.
Do not allow the connection to have any leak, regardless
of how small.
4.5 Drain Connection
4.6.3 Make sure that the gas supply line is open
and that the manual knob on the main gas
valve is turned to the “on” position. This
valve is located behind the front access
panel on the right side of the unit.
The HY-6G (CE)Steamer must be leveled front to back.
A 38mm (1½ inch) ID hose may be attached to the drain
pipe (supplied) by means of a hose. DO NOT
4.6.4 Turn on electrical service to the unit. The
HY-6G(CE) will not operate without electrical
power. Do not attempt to operate the unit
during a power failure.
CONNECT THE HOSE DIRECTLY TO A BUILDING
DRAIN. There must be a 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 free air gap.
4.6.5 The steamer will not operate until the pilot
burner has been ignited. To light the pilot
burner, activate the pilot switch located at
the lower front, next to the main gas valve.
When the pilot ignition sequence has been
successful, a green light on the pilot switch
will glow.
CAUTION
DO NOT USE PLASTIC PIPE. THE DRAIN MUST
WITHSTAND HOT WATER.
Install the drain line with a constant downward pitch.
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.
4.6.6 The “trial for ignition” period is roughly 90
seconds. If the pilot burner does not light
within about 90 seconds after the switch is
activated, the ignition system automatically
stops gas flow to the pilot burner and stops
the ignition trial. If this happens, turn off the
pilot switch and repeat the trial for ignition.
During the initial start-up, the pilot may
require several trials for ignition until all the
air is bled from the gas piping. Subsequent
start-ups should require only about 5
seconds to achieve pilot ignition. Reinstall
panel(s). NOTE: See Automatic Operation of
Pilot at the end of this section.
4.6.7. Once the pilot burner flame has been
established (the green light on the electrical
panel is on), press the ON/OFF touch pad
for the desired steamer cavity. The steam
generator will fill with water.
NOTE: The door MUST be closed for the
main (high) burner to work.
4.6.8 When the steam generator has filled with
water, the main and low burners will ignite
automatically. Within 6-8 minutes the
READY light will come on, indicating that the
water has reached its standby temperature.
When the READY light is displayed, you may
take any one of the following steps:
Leave an air gap between the hose and the building
drain, and don’t allow water traps in the hose.
ꢅ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
a. Set the timer to the desired time for timed
steaming.
Then the unit will come back on and resume
operation in the mode and with the (running) timer
value existing just prior to shutdown. The pilot
switch may be turned off during “off hours” to
conserve energy.
b. Turn the timer knob to the manual ON
position for continuous steam.
c. Let the unit stay at standby temperature.
After the unit has been running, if the pilot burner
ever fails to re-ignite automatically within 90
seconds, wait 5 minutes before you attempt to
reactivate it. In the unlikely event that ignition
problems persist, contact your authorized Groen
Service Agency.
NOTE: For operation at high altitudes (2000 feet and
above) please consult the Groen Food Service
Engineering Department.
WARNING
WHEN YOU OPEN THE DOOR, STAY AWAY FROM
STEAM COMING OUT OF THE UNIT. THE STEAM
CAN CAUSE BURNS.
4.7 Gas Type Conversion (See Paragraph 4.3.1 for
important information for gas conversion. Verify
the type of gas to be used).
4.6.9 To shut down the unit, press the ON/OFF touch
pad into the off position. The steam generator
will then drain. You may also switch off the pilot
switch to conserve energy.
To change the type of gas used (e.g. G20 to/from
G31) change the following:
4.6.10 If the HY-6G(CE) Steamer behaves as
described, the unit is functioning correctly and
ready for use.
Burner injector
Pressure setting on Main Gas Valve
Data plate
Gas pressure Regulator Springs
4.6.11 Automatic Operation of Pilot
The governor spring does not need to be changed;
only the pressure setting. ALL CONVERSIONS
MUST BE FOR APPROVED GAS IN THE
COUNTRIES LISTED IN PARAGRAPH 4.3.1
Once the pilot burner is lit, it essentially functions as a
standing pilot. In this state, if the pilot is accidentally
extinguished (by a very strong gust of wind for example),
it will re-ignite automatically. The unit will completely shut
down for a few seconds while the pilot is re-ignited.
OM/SM-HY-6G(CE)
ꢆ
Download from Www.Somanuals.com. All Manuals Search And Download.
5.0 - Operation
WARNING
ANY POTENTIAL USER OF THE EQUIPMENT SHOULD BE TRAINED IN SAFE AND CORRECT OPERATING
PROCEDURES.
5.1 Controls
Gas Lockout Indicator and Reset Control
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):
Should the pilot fail to ignite during start-up, a yellow
indicator on the control panel (see page 11) will light
and the supply of gas to the unit will be halted.
When this occurs, the ignition process may not be
started again for five minutes. After that time, press the
Lockout Reset Switch located behind the front panel
and attempt to start the unit again. If the lockout
continues to occur after three attempts, contact your
Groen Service Agency for assistance.
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.
5.2 Operating Procedure
5.2.1 Press the ON/OFF touch pad for the steamer.
The steam generator will fill, and heat until the
READY light comes on. (About 10 minutes.)
The CLEANING indicator lights when the
unit is operating in the cleaning mode.
5.2.2 Load food into pans in uniform layers. Pans
should be filled to about the same levels, and
be even on top. The maximum allowable weight
of food is 9.8 kilograms (21.6 lbs.) per pan.
The SERVICE indicator light shows when
the water level probes have stopped
working, and need to be cleaned
(normally an indication of lime deposits).
5.2.3 Open the door and slide the pans onto the
supports. If you will only be steaming one pan,
put it in the middle position.
When one probe is not working, the
SERVICE light flashes briefly every few
seconds. When both probes fail, the light
will flash continuously and the beeper will
sound.
5.2.4 Close the door. With the READY indicator lit,
take one of the following steps:
The HI TEMP indicator light comes on
when the steam generator is too hot.
•
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.
The unit will automatically shut off, and
cannot be turned on again until it has
been serviced.
The TIMING indicator light stays on when
the timer is running.
•
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.
The CLEAN touch pad is used to start the
automatic 50 minute cleaning cycle.
The timer is used in three ways:
WARNING
1
In the OFF position the steam generator stays at a
low boil or “holding” temperature.
WHEN YOU OPEN THE DOOR, STAY AWAY FROM
THE STEAM COMING OUT OF THE UNIT. THE
STEAM CAN CAUSE BURNS.
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.
5.2.5 Open the door. Remove the pans from the
steamer, using hot pads or oven mitts to protect
your hands from the hot pans.
3
With the timer turned to the ON position, the unit
steams continuously. The green light stays lit. The
steamer will not time down.
5.2.6 To shut down the unit, press the ON/OFF touch
pad OFF. The steam generator will drain.
10
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
Upper Portion of HY-6G(CE) Control Panel
OM/SM-HY-6G(CE)
11
Download from Www.Somanuals.com. All Manuals Search And Download.
6.0 - Cleaning
To keep your HY-6E Steamer in proper working condition/order, use the following procedure to clean the unit.
This regular cleaning will reduce the effort required to clean the steam generators and cavities.
6.1 Suggested Tools
WARNING
1. Mild detergent
2. Stainless steel exterior cleaner such as Zepper®
3. Steam generator de-liming agent, such as
DISCONNECT THE POWER SUPPLY
BEFORE CLEANING THE OUTSIDE OF
THE STEAMER.
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
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
9. Nylon pad
10. Towels
11. Plastic disposable gloves
12. Funnel
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!
6.2 Procedure
6.2.1 Outside of Steamer
EVENWHEN THEUNIT HAS BEENSHUT
OFF, DON’T PUT HANDS OR TOOLS
INTO THE COOKING CHAMBER UNTIL
THE FAN HAS STOPPED TURNING.
1. 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.
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 DE-
LIMING AGENT THAT CONTAINS ANY
SULFAMIC AGENT OR ANY CHLORIDE,
INCLUDING HYDROCHLORIC ACID
(HCl). TO CHECK FOR CHLORIDE
CONTENT SEEANY MATERIAL SAFETY
DATA SHEETS PROVIDED BY THE
CLEANING AGENT MANUFACTURER.
2. 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.
3. Stainless steel surfaces may be polished
with a recognized stainless steel cleaner such as
Zepper®.
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 MAYLEAVEPARTICLESIMBEDDEDINTHESURFACEWHICHCOULDEVENTUALLYCAUSE
CORROSION AND PITTING.
1ꢀ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
7. Replace fan baffle partition and close door.
6.2.2 Steam Generator and Cooking Chamber
8. The cleaning cycle consists of a boiling clean
stage, a soak stage, and a rinse stage. The full
cycle takes about 50 minutes to complete.
The steamer cavity and steam generator may be
cleaned separately. When cleaning is scheduled, or
if the SERVICE light is on, follow these simple de-
liming instructions. REMEMBER: DON’T ALLOW
DE-LIMING AGENTS TO MIX WITH DE-
GREASERS.
9. WEAR PROTECTIVE GLOVES AND EYE
PROTECTION FOR THIS
STEP. When the steamer
beeper sounds, turn off the
1. Set the timer to OFF position.
steamer and open the door.
After the fan has stopped,
remove the fan baffle partition
and rinse it well in a sink.
2. Turn off the steamer for five
minutes.
Wipe out the cavity
completely. If necessary, use a damp nylon pad.
3. Open the door and allow the
cavity to cool.
10. Reinstall the fan baffle.
4. After the cavity has cooled five minutes, make
sure that the fan has stopped and remove the
fan baffle partition by lifting it up and toward the
center of the cavity.
11. If the steamer will no longer be used, leave it off.
Otherwise, wait 10 minutes and turn it back on.
When the READY light comes on, the steamer is
ready for operation.
5. Wipe out the cavity. Make sure the drain holes
at the back of the cavity are clear of debris.
6.2.3 If the SERVICE light stays on:
6. Hold down the CLEAN button while turning the
steamer on. Continue holding it
1. Check that the water supply is on and that the
supply hose is not kinked. With the problem
corrected, turn the steamer off or 10 seconds
and then re-start.
until the CLEANING indicator light
comes on. Then release the
button. After five minutes, the
beeper will begin to beep rapidly.
This is the signal to add 500 ml per
cavity of Groen De-limer De-
2. Repeat steam generator cleaning.
Scaler (P/N 114800), Lime-A-Way® or
equivalent as shown at right. Do not use any de-
limer that contains chlorine.
The process for de-liming your HY-6G (CE) Steamer is simple,
tool-less and quick.
OM/SM-HY-6G(CE)
1ꢁ
Download from Www.Somanuals.com. All Manuals Search And Download.
7.0 - Maintenance
The HY-6G(CE) Steamer is designed for minimum
2. Inspect the cooking chamber drain to be sure
it is not blocked.
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.
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
Always supply water with a low mineral count that
meets the standards outlined in the Water
Conditioning section of this manual.
clockwise, and re-tighten the lock nut.
b. After adjustment, run the unit to test for
further steam leakage
The unit does not contain fuses that could be
replaced by the operator.
c. If there is still leakage, repeat the
adjustment.
If steam or condensate is seen leaking from around
the door, take the following steps:
d. Continue adjusting the pin clockwise until
the door fits tightly enough to prevent
leakage.
1. Check the door gasket. Replace if it is cracked or
split.
8.0 - 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
Pilot will not light
User
a. Are electrical connections made with a ground?
b. Is gas supply connection made?
c. Is pilot ignition switch on?
d. Is gas valve turned on?
e. Are building fuses or circuit breakers all right?
f. Are there drafts which could blow out the pilot?
Auth Service
Rep Only
g. Is spark ignition cable connected to module? (X)
Steam generator does not fill with
water.
User
a. Is the ON/OFF touch pad depressed?
b. Is the water supply connected?
c. Is the water turned on?
d. Check for low water pressure (less than 210 kPa or
30 PSI).
e. Is the screen at the water connection clogged?
f. Has the steam generator been delimed?
No steam.
User
User
a. Is the ON/OFF touch pad 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?
Red light comes on after four
minutes.
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 User
of unit
a. Is the water spray hose kinked or obstructed?
Auth Service
Rep Only
b. Is the water spray solenoid connected?(X)
c. Is the drain properly vented? (X)
1ꢂ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.1 External Cabinet and Sheet Metal
Key
1
Description
Lower Side Panels
Part No.
096848
096720
042505
094150
070123
094147
094148
096788
078914
003823
123100
123128
096855
Key
Description
Part No.
123183
096785
099943
123184
123182
096765
096854
128964
100983
122021
122144
122122
116392
13 Upper Right Side Panel
14 Lower Back Panel
15 Sink Drain Fitting
16 Upper Left Panel
17 Top Panel
2
Lower Front Panel
Adjustable Table Leg
Door
3
4
5
Door Handle
6
Door Gasket
18 Flue Cover
7
Left Pan Rack
Blower Cover/Rack
Door Locking Pin
19 Flue
8
20 Back Panel
9
21 Timer
9a Door Pin Lock Nut
10 Timer Knob
22 Equipotential Terminal Assembly
23 Water Supply Adapter Assembly
24 Gas Lockout Indicator Light
25 BSPT to NPT Adapter
11 Mylar Overlay Plate
12 Vent Pipe
OM/SM-HY-6G(CE)
1ꢃ
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.2 Cavity Control Section
Key
1
Description
Top Cover Clip
Timer
Part No.
123156
100983
096857
088865
088874
099250
099953
088880
127525
Key
10
11
12
13
14
15
16
Description
Part No.
096740
096813
128800
119801
119815
119817
088847
088846
Fan Motor
2
Motor Capacitor, 3 MFD
Cover, Control Panel
Steamer Control PC Board
Transformer
3 x Door Switch
4
5
6
7
8
9
Ready Thermostat
Steam Port
Steam Port Gasket
Steam Hose, Top
Steam Hose, Bottom
1-3/8” Hose Clamp
Timer Board
Top Cavity Drain Hose
17x Bottom Cavity Drain Hose
x - Part Not Shown
16
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.3 Steamer Base Section - Front
Key
1
Description
Terminal Block
Part No.
003887
128766
119813
070178
119814
074842
106234
122180
Key
Description
Part No.
087951
122003
119860
119829
122158
100513
094128
123655
9
Gas Pilot Switch, Rocker
2
Cover, Housing
10 Reset Switch, Pushbutton
11 Circuit Breaker, 10 Amp
12 Lug, Ground
3
Relay, 12V DC
4
Water Level Probes
Relay, 24V DC
5
13 Main Gas Valve
6
Reset Relay 24VAC
Transformer 75 VA, 240V
Controller, Pilot Ignition
14 Regulator
7
15 Steam Generator Assembly LH
16 Steam Generator Assembly RH
8
OM/SM-HY-6G(CE)
1ꢄ
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.4 Steamer Base - Rear
Key
1
Description
Gas Valve, 24V
Part No.
122120
123707
096712
123711
123475
123706
Key
7
Description
1/4" Tubing, Pilot
Part No.
122140
123705
123704
100513
042505
096892
2
1/2" Tubing
3/8" Tubing
Heat Shield
1/2" Tubing
3/8" Tubing
8
Manifold Fitting Assembly
Manifold Fitting Assembly
Regulator
3
9
4
10
11
12
5
Adjustable Foot
6
Over Temperature Sensor
1ꢅ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.5 Steamer Plumbing
Key
1x
2
Description
Plate, Cover, Water Inlet
Hose, PVC, Clear
Part No.
098693
099915
096771
127393
096772
127522
122144
071234
099911
099912
Key
11
12
13
14
15
16
Description
Gen Drain Hose Clamps
Drain Box
Part No.
095656
096791
099213
096792
088847
088846
073259
096855
090827
3
Hose, Condensate
Drain Box Flap
4x
5
Drain Kit
Drain Box Cover
Water Inlet Hose
Top Cavity Drain Hose
Bottom Cavity Drain Hose
6
Water Inlet Hose Clamp
Water Inlet Adapter Assy (BSPT)
Steam Gen Drain Valve
Outer Gen Drain Hose
Inner Gen Drain Hose
7
17x Cavity Drain Hose Clamp 21/4"
8
18
19
Vent Pipe
9
Water Inlet Valve 3 Way
10
x - Not Shown
OM/SM-HY-6G(CE)
1ꢆ
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.6 Steamer Motor and Controls
Key
1
Description
Part No.
096740
101145
096868
094135
096790
100983
Key
7
Description
Part No.
123100
096857
118102
088865
099250
Fan Motor
Timer Knob
Door Switch
2x
3
Timer Fastener Nut
Motor Shaft Seal
Motor Insulator
Fan
8
9
Steam Port Kit*
-Ready Thermostat
-Steam Port Gasket
4
10
11
5
6
Timer 50 Hz
*Includes Thermostat and Steam Port Gasket
ꢀ0
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.7 Steamer Generator Individual Parts
Key Description
New
Key
8
Description
Bottom Cavity Drain Hose
Top Steam Hose
New
1
1
Steam Gen Weldment, Inner
094128
123655
096896
096770
106392
081670
070178
088847
088846
099953
099915
096772
099912
099911
096771
088880
Steam Gen Weldment, Outer
Right Steam Gen. Insulation
Left Steam Gen. Insulation
Safety Valve
9
2x
3x
4
10 Sink Drain Hose
11x Water Inlet Hose
12 Inner Steam Generator Drain Hose
13 Outer Steam Generator Drain Hose
14 Condensate Hose
5
Drain Box Spray Nozzle
Water Level Probe
6
7
Top Cavity Drain Hose
15 Bottom Steam Hose
x - Part Not Shown
OM/SM-HY-6G(CE)
ꢀ1
Download from Www.Somanuals.com. All Manuals Search And Download.
9.0 - Parts List
9.7 Steamer Individual Parts
Key
1
Description
Main Gas Valve
Part No.
122158
100513
123705
123704
122180
122120
Key
6
Description
Pilot Gas Switch
Part No.
087951
090827
071234
123641
003328
2
Regulator - Natural Gas
Gas Manifold(Left)
Gas Manifold (Right)
Igniter Module
7
Water Inlet Valve - 3 outlet
Steam Generator Drain Valve
Pilot Burner - Natural Gas
3a
3b
4
8
9
10x Flame Sensor
5
Solenoid Gas Valve
x - Not Shown
ꢀꢀ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
10.0 - Service Procedures
The following procedures are based upon having access to the steamer on all four sides. If the steamer is installed
between other appliances and there is not enough room on the sides for access, the steamer must then be pulled out
from its position to gain proper access.
Care should be taken in moving the steamer so as not to stress or pull on the electrical and water connections.
1. If the top/left side cover must be removed due to a
faulty door switch, remove the right side panel (as
above) first. Then remove the top left panel in the
same manner.
10.1
Top Right Side Panel (Louvered) - Removal
P/N 123183
1. With a flat blade screw driver remove the two 10-32
screws on the lower edge and one screw on the top
edge of the panel. The panel is held to the steamer
by two spring-like clips at the rear and bottom edge.
10.4
Adjustable Legs
P/N 042505
2. Once the screws are removed SLIDE the panel
towards the front with a lifting motion. Do not attempt
to PRY the panel. Once the panel is free of the rear
and lower clips, it may be lifted off.
1. Each leg is provided with a screw type support post.
These may be extended or retracted by turning them
with a wrench or ChannelLock. Make sure that all
four legs are in tight contact with the floor for proper
steamer support.
ASSEMBLY TIP: When replacing the panel, press the
rear edge inward so that both clips will be retained by the
back flange. Make sure that the holes in the panel are in
alignment with the tapped holes in the steamer so that
the replacement of the two 10-32 screws will be easy and
not damage the screws.
2. If damaged, these posts may be replaced by tapping
out (on opposite sides of the leg) the threaded fitting
which is friction held in each stainless steel leg. The
stainless leg and the threaded fitting are one
assembly.
NOTE: The following components and assemblies are to
be found in the lower table portion of the steamer.
10.2
Steamer Table Panels
Front P/N 096720
Rear P/N 096785
Left/Right Side P/N 096848
10.5
Steam Generator Drain Valve
P/N 071234
1. To remove the steamer table lower panel, simply
raise the panel and swing out. There are no fasteners
on this panels and it is retained only by upper and
lower tracks.
1. Turn off power and allow steamer to drain
completely. Remove back cover panel and loosen
hose clamps.
2. To remove the front and side panels remove the
screw(s) holding the panel, then remove the panels.
2. Disconnect both ends of the drain hose from the
spray box and the steam generator.
3. The front and rear panels are unique and the two
side panels are identical and interchangeable.
3. Unplug and disconnect the valve electrical wires.
Remove the nuts holding the valve to the plate.
Remove the valve from the threaded studs. Then
remove the silicone hose from the valve.
10.3
Left Side - Removal
P/N 123184
4. Inspect the silicone hose for any damage or lime
buildup. Replace hose if required.
Under normal conditions, the left side cover should never
have to be removed as there are no operational and/or
replacement parts to be accessed. The single exception
is if the door has been reversed so that the handle is on
the LEFT and the Door Interlock Switch is found to be
defective and must be replaced. The door switches for
BOTH door positions are installed at the time of
manufacture, so there is no need to access the switch if
the door is to be reversed.
5. Attach new drain valve to valve bracket. Pull silicone
hose through drain valve and loosely install hose
clamps over both ends of the hose. Be sure silicone
hose is properly aligned and does not have any
kinks, bends and/or twists.
OM/SM-HY-6G(CE)
ꢀꢁ
Download from Www.Somanuals.com. All Manuals Search And Download.
6. Position the valve over the valve mounting threaded
studs and connect both ends of the hose to the drain
box and steam generator.
the two screws. Make sure that the valve is NOT
installed upside down.
9. Re-attach the hoses to the valve. Slide the hoses all
the way so that the end of the hose is flush against
the face of the valve.
7. Position the spring clamps about 3 mm (1/8") from
the end of the hose.
8. Install and tighten valve mounting 10-32 cap nuts.
9. Plug valve electrical leads into the wiring harness.
To Test:
IMPORTANT. Make sure that the correct steam
generator hose is connected to the corresponding valve
outlet. Slide the hose clamps back into position around
the end of the hose and tighten the clamps.
Slide the hose clamps so that they are within 3 mm (1/8
inch) from the end of the hose.
Operate steamer and allow steam generator to fill. Check
for leaks and observe if drain valve fully closes. Turn off
steamer and observe that drain valve opens and the
steam generator drains. Install back cover.
TOP hose — to the TOP Steam Generator
MIDDLE hose — to the BOTTOM Steam Generator
BOTTOM hose — to the DRAIN Box
10.6
Water Inlet Valve - Three Way
P/N 090827
11. Attach the three sets of wires to the valve making
sure that the proper wires are connected to the
corresponding terminals.
1. Turn off power to the steamer. Turn off the water
supply to the steamer. Remove the water supply
hose connection on the rear of the steamer.
To Test:
2. As viewed from the rear, remove the back panel and
the right panel.
With power ON, turn on the power switch to one cavity.
The fill solenoid for that steam generator should energize
allowing water to enter the steam generator. When
READY light is ON, spray valve solenoid should energize
and water should enter the drain box.
3. The water inlet of the valve branches to three
individual solenoid activated valves within a single
housing, with the following sets of wires:
10.7 Water Inlet Valve Coil
Solenoid
Wires
Top Steam Generator Fill: Green and Blue
Bottom Steam Generator Fill: Violet and Gray
If a solenoid coil on the water inlet valve is defective,
replace the entire valve in accordance with Section 10.6.
Condensate Spray:
Black and White
10.8 Drain Box Spray Nozzle
4. Slide the hose clamps down the hose until needed
for reassembly. Loosen and remove the hoses using
a gentle rocking motion.
P/N 081670
1. Raise the stainless steel vent pipe to remove it from
the drain box. Do not loosen the hose clamp around
the vent pipe. The hose clamp serves to prevent the
pipe from going too far into the drain box. Secure the
vent pipe in the raised position.
5. From the back of the steamer, remove the two
screws holding the valve assembly in place. Then
lower the valve WITH THE WIRES STILL
ATTACHED.
2. Lift the cover of the drain box. There are no fasteners
holding the cover on the drain box.
6. From the back of the steamer, remove the two 8-32
screws holding the valve assembly in place. Lower
the valve.
3. Tip the cover and note there is a circular hole in the
middle and the spray nozzle (with a hex head) is in
the center of the hole.
7. Carefully unplug the connectors, one at a time and
attach to the new valve.
4. With a socket wrench, turn the spray nozzle in the
counter-clockwise direction to remove.
8. To install a new valve, reverse the procedures and
first install the six wires (three sets) as listed in Item 3
of this Section. Fasten the valve to the steamer with
5. To install new nozzle, place pipe compound on the
nozzle threads, insert nozzle in socket wrench and
start the nozzle in the hole. Tighten nozzle.
ꢀꢂ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
6. Replace cover on drain box and lower vent pipe into
the drain box.
18. Once the steam generator has been removed, the
fittings and probes may be transferred to the new
steam generator. Make sure that all screw fittings are
installed using high temperature pipe compound.
10.9 Steam Generator
P/N 094128 and 123655
NOTE: Refer to appropriate sections for detailed
1. Shut off power, water and gas supply to the steamer.
2. Turn main gas valve to the OFF position.
instructions on fittings and heater assembly.
19. Install new boiler in the reverse order of removal.
3. Disconnect the water inlet hose, steam hose and
drain hose by loosening the hose clamps and
working the hose off the respective fitting.
20. Attach the water inlet hose, drain hose and steam
hose. Tighten hoses around fittings with hose clamps
10.10
Steam Generator Probes (High and Low
Water) P/N 070178.
4. Disconnect the two boiler manifold gas lines from the
gas solenoid valves.
1. Shut off power to the steamer.
5. Disconnect “spark” lead from igniter module and
disconnect the two boiler manifold gas lines from the
manifold. Remove the gas lines from the unit.
2. With a wrench LOOSEN, but do not remove the nuts
holding the wire(s) on the probe terminal(s)
6. Remove flame holders and/or jets if necessary.
7. Disconnect pilot line from the main gas valve.
3. The wires are connected to wire fork terminals.
These will "snap" on and off the terminal post. "Un-
snap" them by gently pulling on the terminal.
8. Disconnect “spark” lead from igniter module and pilot
burner.
4. Using an open ended wrench, turn the probe
counter-clockwise to remove.
9. Remove pilot burner.
To Install:
10. If identification is missing from the water level probe
electrical leads, identify and mark them at this time.
5. Apply high temperature pipe compound to the probe
and screw it in by hand. Using an open ended
wrench, tighten the probe into the fitting.
11. Disconnect the electrical lead from the water level
probe which is being removed, and carefully remove
the probe. Be careful not to damage the ceramic
material on the probe.
6. Replace the wire(s) to the probes by snapping the
fork terminals around the terminal post. Using a
wrench, tighten the terminal nut.
12. Clean the probe and the probe holder.
NOTE: If two probes are to be replaced, either
replace them one at a time or note the color of the
wires attached to the probes. Do not get them mixed
up.
13. Inspect the probe and its ceramic for damage. If
damaged, replace the probe.
14. Disconnect boiler temperature probe leads from
harness.
10.11
Main Gas Valve and Gas Pressure
Adjustment P/N 122158
15. Remove temperature probe. If male fitting was
removed with the probe and compression nut,
remove it from the probe.
1. Disconnect power to the steamer.
2. Remove the front and side panels, as described in
Section 10.2, above.
16. With a socket wrench, remove the four 1/4-20 bolts
holding the steam generator to the steamer table.
3. Turn the manual gas valve to the closed position.
Disconnect the wire to the solenoids.
17. The entire steam generator (with fittings attached)
may now be removed. Remove outer bolt from the
side and inner bolt from the rear.
4. Note the color and position of the two connectors for
assembly.Remove the aluminum tubing from the
OM/SM-HY-6G(CE)
ꢀꢃ
Download from Www.Somanuals.com. All Manuals Search And Download.
main gas valve assembly using an open-ended
wrench. Be careful not to move the aluminum tubing
excessively, or to bend it.
4. From the left side (or back) of the steamer, use a
wrench to loosen and disconnect the aluminum
tubing to the inner and outer manifolds.
5. Using a wrench, remove the two bolts that fasten the
main gas valve bracket.
5. The entire assembly of both regulators and the gas
solenoid valves for the upper and lower steam
generators may be removed as an integrated unit.
6. With a pipe wrench, open the pipe union on the left
side of the main gas valve and remove the gas inlet
pipe from the manual gas valve.
6. Remove the gas solenoid valve(s) as required.
To Reinstall:
7. Remove the main gas valve and manual gas valve
assembly.
7. Clean pipe threads and apply compound to all joints
being connected.
To Assemble:
8. Install the new gas solenoid valve.
8. Clean pipe threads and apply compound to all joints
being connected.
9. Slide the assembly into the steamer and reconnect
the pipe union. Align the gas valves with their
respective aluminum tubing.
9. Install the main gas valve in the reverse order of
removal (Steps 8 through 1).
10. Using a wrench, connect the aluminum tubing to the
burner manifold.
10.12
Gas Solenoid Valve
P/N 122120
11. Reconnect the wires to the correct valve.
The gas solenoid valves must be removed as an
assembly along with the regulators, using the following
procedures:
10.13
Igniter Module
P/N 122180
1. Turn off the gas supply and power to the steamer.
1. Shut off power and gas to the steamer.
2. Disconnect wires from the main gas (Section 10.11)
and from the gas solenoid valves.
2. Remove the cover to the electrical compartment.
3. The igniter module is located under the relays.
3. From the front of the steamer, loosen and
disconnect the pipe union which connects the
assembly to the main gas valve.
4. Note or tag the wires for reinstallation if necessary,
before unplugging. Carefully disconnect the push
REAR VIEW
ꢀ6
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
terminals from the igniter module. Be careful not to
pull the terminal by the wire. Use needle nose pliers
to grip onto the terminal itself.
7. Remove the flame sensor from the flame sensor
bracket.
8. Remove the pilot burner.
Installation:
5. Remove the screws that secure the igniter manifold.
6. Remove the igniter module.
To Install:
9. Connect the pilot line to the pilot burner.
10. Connect the “spark” lead to the pilot burner. Be sure
to route the lead around the outside of the gas lines.
7. Position the new igniter against the back wall of the
electrical compartment.
11. Replace the flame sensor on the flame sensor
bracket.
8. When all four screws are partially threaded, tighten
them one at a time.
12. Apply anti-seize lubricant to mounting head screw
threads. Install the pilot burner and flame sensor
assembly, and tighten the screws.
9. Plug in each of the terminals. Double check to
ensure that they are in the correct location.
10.14
Pilot Switch (SW3) Removal
P/N 087951
NOTE: Route the “spark” lead and flame sensor wire
away from the manifold to prevent improper
operation.
1. Shut off the power supply. Disconnect the four color
coded wires from the switch assembly.
13. Turn manual gas valve to the ON position.
2. The switch snaps into the metal plate where it is
retained by plastic tabs on the top and bottom. To
remove the switch from the plate, press in on both
tabs at the same time and slide the switch out of the
bracket hole.
14. Connect unit to the branch circuit and turn on the
main gas supply.
15. Place pilot switch SW3 in the ON position. Check for
gas soundness.
To replace the switch
Pilot Flame Current Check
3. Insert the new switch into the bracket hole until its
tabs clear the hole and snap into position.
4. Reattach the wires to the switch.
10.15
Pilot Burner Replacement/Current Check/
Adjustment - Pilot Flame Sensor
Replacement
WARNING
WHEN STEAMER POWER IS TURNED ON, THERE IS
HIGH VOLTAGE PRESENT IN THE ELECTRICAL
COMPONENTS COMPARTMENT. BE SURE THAT
STEAMER IS DISCONNECTED FROM BRANCH
CIRCUIT BEFORE PERFORMING ANY REPAIRS.
P/N 123641)
P/N 003328 Flame Sensor
1. Turn off the main gas and power supply.
2. Remove the front cover.
1. Turn off steamer power.
3. Remove the right side panel as described in
Paragraph 10.2.
2. Disconnect the ground (green) wire from the igniter
module.
4. Turn the manual gas valve to the OFF position. Turn
the pilot switch to the OFF position.
3. Connect a DC micrometer between the igniter
ground terminal and the disconnected green wire.
5. Disconnect the pilot line from the pilot burner.
6. Disconnect the “spark” lead from the pilot burner.
OM/SM-HY-6G(CE)
ꢀꢄ
Download from Www.Somanuals.com. All Manuals Search And Download.
12. Fit the burner manifold to the steam generator
manifold mounting bracket.
WARNING
DO NOT ATTEMPT TO LIGHT THE PILOT BURNER
WITH A FLAME.
13. Reinstall and tighten the aluminum tubes to the
burner manifold.
4. Ignite the pilot. The micrometer should read 3
microamps minimum.
NOTE: Ensure all gas connections are sound before
continuing.
•
•
If current reading is correct, replace the igniter
module (see 10.13).
10.17 Timer Assembly
Timer Fastener Nut
P/N 101145
P/N 100983
If current reading is below 3 microamps,
continually check the Flame Rectification Circuit
(large orange wire, spark electrode, pilot burner
hood, and ground connections). If necessary,
tighten ground connections and/or replace
defective component(s).
1. Remove the three hex nuts which retain the control
panel cover. Remove the cover.
2. Remove the knob from the timer. Under the knob is
a hexagonal nut which holds the time mechanism to
the steamer. Note that there is a flat on the timer
shaft which corresponds to a frictional mounting hole
on the knob.
5. Check for moisture around the pilot burner, and for
corrosion on the electrode and the pilot burner hood.
If necessary, remove moisture with a dry, clean
cloth. If hood and/or electrode are excessively
corroded, replace pilot burner assembly.
3. From the left side, unplug the five terminals/wires
(violet, gray, black, tan and white) from the timer
mechanism and unplug the two black timer motor
leads.
10.16
Steam Generator Gas Jet Manifolds
P/N 123704 and 123705
4. With an open-ended wrench, remove the hex nut
holding the timer in place. The timer may then be
removed from inside the compartment.
1. Shut-off power and gas to the steamer.
2. Remove the right side panel.
NOTE: Right below the timer shaft, the timer has a small
plastic disk molded onto the case. There is a
corresponding hole punched into the front panel. This
hole may be seen from the inside of the compartment
only when the timer is removed.
3. Turn manual gas valve to the closed position.
4. Remove the four aluminum tubes connected to the
manifolds. Disconnect using an open ended wrench.
5. Disconnect all wire connections to the pilot.
To Install:
6. Remove the two screws from the pilot mounting
bracket. Remove pilot from the gas manifold.
5. Fit the timer in place making sure that it is properly
placed so that the disk on the timer fits into the
punched hole in the front panel.
7. Using a wrench, remove the two top and one bottom
bolts which hold the manifold to the steam generator
manifold mounting bracket.
6. Once the timer is properly located, tighten the hex
nut so that the timer does not slip or rotate. Do not
over-tighten the nut.
8. Remove the screws in the heat shield.
7. Align the flat of the knob hole with the flat on the
timer shaft. Press the knob firmly onto the timer
shaft.
9. Remove the burner manifold from the appliance.
10. Remove the flame retention springs and injectors as
required.
8. Plug in the wires identified above and connect the
two black wires from the motor leads.
To Reassemble:
9. Reattach the control panel cover.
11. Replace the injectors and retention springs. Ensure a
suitable gas sealant is used on the threads of the
injectors to ensure a gas tight seal
ꢀꢅ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
10.18
Fan
P/N 096790
7. To prepare motor for mounting, slide the oil slinger
washer onto the shaft about ½" (12 mm) down the
shaft.
IMPORTANT: Make sure that the fan has come to a
complete stop before attempting any work on the fan.
IMPORTANT: This washer has two surfaces: A
rubber surface and a phenolic surface. Make sure
the phenolic surface is facing the motor.
1. To remove the fan from either the top or bottom
cavity, open the door and remove the pan support
wire rack in front of the fan.
8. Install the plate seal holder onto the motor shaft.
Carefully slide the plate seal holder down the motor
shaft until it engages the slinger washer. Continue
moving the plate seal holder down the motor shaft
until the plate comes to rest on the raised bosses of
the motor casting.
2. With an allen wrench, loosen the set screw which
holds the fan to the motor shaft.
3. Hold onto the fan, and with a slight rocking motion
pull the fan off the motor shaft.
To Install:
9. Using this technique, the rubber side of the oil
Slinger washer should be in contact with the plate
holder and there should be a space of
4. Note that the motor shaft has a flat surface. Position
the fan hub on the motor shaft so that the allen set
screw is opposite the flat portion of the motor shaft.
approximately 5/64" (2 mm) between the
phenolic face of the washer and the motor.
5. Slide the fan onto the motor shaft far enough so that
the motor shaft is at the end of the fan hub.
10. Using four hex/slotted 6-32 screws, screw the motor
mounting plate to the motor with each screw passing
through corresponding holes in the plate seal holder.
6. With an allen wrench, tighten the set screw on the
fan.
11. The entire assembly may now be positioned on the
four threaded studs protruding from the cavity wall.
Fasten the assembly with nuts using a wrench. Make
sure that the green/yellow ground strap is secured
under one of the nuts securing the motor. The upper
motor has a drip shield installed on the lower studs.
NOTICE: Advise customer to periodically clean the fan
blades of deposited food grade grease coming from the
foods being cooked. The deposit of such grease over
time could cause the fan to vibrate.
10.19
Fan Motor Assembly
P/N 096740
Motor Insulation
P/N 094135
10.20
Motor Starting Capacitor
P/N 096813
Motor Shaft Seal
P/N 096868
Oil Slinger Washer
P/N 096831
1. Turn off electrical power to the steamer.
1. Shut off electrical power to the steamer.
2. Loosen and remove the screw holding the capacitor.
2. From inside the cavity, remove fan using an allen
wrench as indicated in Section 10.17.
3. Unplug the two terminal wires from the capacitor.
Remove the capacitor.
3. Using a socket wrench, remove the four 1/4-20 Keps
nuts holding the motor. Note that one of the nuts
secures the motor ground strap to the steamer.
To Install New Capacitor:
NOTICE: Make sure that the correct capacitor is
used, which is 3 mfd at 330 volt.
To Install a New Motor:
4. Make sure the capacitor is seated properly, then
tighten the screw securing the capacitor to the
mounting plate.
4. Make sure the motor insulation board is installed on
the four threaded studs to the cavity wall.
5. Apply lubricant on both sides of the steamer motor
seal and the inside hole. Refer to the Motor
Assembly Chart.
5. Plug terminal wires to the capacitor.
10.21
Steam Generator Ready Thermostat
P/N 088865
6. Insert the steamer motor seal in the cutout of the
insulator board.
This thermostat is attached to the cavity steam port.
OM/SM-HY-6G(CE)
ꢀꢆ
Download from Www.Somanuals.com. All Manuals Search And Download.
1. Turn off power to the steamer.
cavity and one for the bottom cavity. If both hoses are to
be replaced, replace them one at a time.
2. Unplug the two wires from the thermostat.
3. Using a wrench, remove the thermostat.
1. Shut off power to the steamer.
2. Remove cavity side and lower side panels of table.
4. To install a new thermostat, use a small amount of
heat sink compound (1 drop), applied to bottom of
thermostat. Seat the thermostat on the steam port
and connect.
3. In the upper portion of the steamer, remove hose.
Turn and pull the hose to remove it from the hose
nipple.
5. Plug the thermostat into the wiring harness.
4. In the lower section of the steamer, remove the hose
clamp from where the hose is connected to the
steam generator. Turn and pull the hose to remove it
from the hose nipple.
10.22
Steam Port
Gasket
P/N 096736
P/N 099250
1. Shut off power to the steamer.
5. The hose may be removed. Be careful that the hose
clamps do not fall off and get lost.
2. Remove the 1-1/8 inch steam hose by loosening the
clamp around the hose and sliding it away from the
steam port. Turn and pull to loosen hose and remove
from steam port.
IMPORTANT: Make sure that the correct part (and
part number) are being used. The two hoses in the
steamer are of different lengths. (See Page 21 for
Part Numbers.)
3. With a wrench, remove the screws holding the
thermostat to the steam port.
To Install:
4. Cut and fold up aluminum foil insulation blanket to
expose the two nuts which hold the steam port to the
cavity wall threaded studs.
6. Slide the two hose clamps onto the hose and
position the hose adjacent to the steam port and
steam generator.
5. With a wrench, remove the two nuts.
6. Remove the steam port.
To Install:
7. Slide the hose onto the hose nipple on the steam
port and at the other end, onto the steam generator
nipple. Make sure the hose is on all the way so that
the end of the hose is against the face of the nipples.
8. Install the hose clamps 3 mm (1/8") from the end of
the hose.
7. Put a small bead of silicone sealant in and around
the groove in the steam port to seal any possible
leaks, or use gasket P/N 099250.
10.24
Door Removal/Installation/Alignment
P/N 094150
8. Install steam port on threaded studs. Secure with two
nuts.
1. To remove the door, turn off the steamer power and
allow the steamer to cool. Then, remove door by
supporting the weight of the door and remove hinge
pin.
9. Fold down aluminum foil insulation blanket to original
blanket position and repair cuts with aluminum foil
duct tape.
2. Place the door on a flat, clean table or similar
support, with gasket facing up. Be careful not to
scratch door surface.
10. Reinstall thermostat as described in 10.20 above.
11. Reinstall steam hose to steam port and install the
clamp.
3. Inspect door gasket for signs of cuts or other defects
which may impair its function. Replace if necessary.
10.23
Cavity Steam Hose Assemblies
P/N 099953 (Top)
To Install:
P/N 088880 (Bottom)
4. To install the door, apply NEVER-SEEZ lubricant to
hinge pin. Align door with hinge and insert hinge pin.
There are two hoses which connect the steam
generators with their respective cavities. One for the top
ꢁ0
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Loosen lock nut with a wrench. Remove door locking
pin and lock nut.
To Align:
5. Place a piece of masking tape over the door pin
(bullet) hole in the door.
6. Coat bullet threads with NEVER-SEEZ high
temperature compound. Install door locking pin and
lock nut directly across steamer cavity from old door
locking pin location. Install these items so that lock
nut-to-end of bullet distance is approximately the
same as measured in Step 4.
6. Close the door until the door pin just penetrates the
masking tape. Make sure the door pin contacts only
the door latch spring.
7. If door pin does not strike the center of the spring
hole in the U-channel, loosen the hinge-to-oven bolts
and align the door to the door pin. Tighten hinge-to-
oven mounting bolts.
7. Remove the two truss head screws from above and
below the old bullet location and install them above
and below the new bullet location.
8. Remove screws and U-channel from the door. Take
the magnet and block assembly from present
location and place it at the opposite end of the door
channel, with the magnet facing outward from the
door.
8. You should be able to pull a dollar bill or comparable
piece of paper smoothly between the gasket and
oven cavity with the door closed. To adjust the hinge
side, loosen the door-to-hinge bolts and align the
door gasket with the oven cavity. Tighten the door-
to-hinge mounting bolts. To adjust the bullet side
refer to 10.30.
9. Remove screws which secure the handle. Remove
door handle from cam.
9. Operate the steamer and check for leaks.
10. Apply NEVER-SEEZ high temperature (rated for
250ºC) anti-seize and lubricating compound to the
cam and Locktite 242 to screw threads.
10.25
Door Switch
P/N 096857
11. Turn handle and cam 180-degrees from their original
positions and install them on the door with screws.
Be sure handle and cam move smoothly.
1. From the right side of the steamer with panel
removed, unplug the door switch from the cable
harness.
12. Be sure door handle is in the DOWN position. Turn
U-channel 180-degrees from its original position,
hold door spring in U-channel open with a
2. The switch (for normal door opening) is held in place
with two small screws. With a flat blade screwdriver,
remove these screws and the switch may be
removed.
screwdriver or similar tool, and install U-channel.
Don not install the screw at this time.
3. To install screws for the door switch reverse the
above procedure.
13. Check operation of the cam. Push up on the door
handle and check if the spring opens. If the spring
does not open, cam and spring are NOT correctly
aligned and problem must be corrected.
4. If the door has been reversed and the switch must
be removed and replaced, refer to the top and left
side panel removal in Section 10.3 and then remove
the switch as above.
14. Apply a light amount of Locktite 242 to screws, then
install screws securing U-channel.
10.26
Door Reversing Procedures
15. Apply Locktite 242 to the hinge-to-steamer bolts,
then install door and hinge mounting bolts. Do NOT
tighten mounting bolts at this time.
1. Turn off steamer power and allow steamer to cool.
2. To remove door, support door while removing hinge-
to-steamer bolts.
16. Align door to steamer. Refer to 10.24, Alignment
procedure.
3. Place door with hinge on a flat, clean table (or similar
support), with the gasket facing up. Be careful not to
scratch door surface.
IMPORTANT. When the door is reversed, the alternate
door switch (installed at time of manufacture) must be
connected to the circuit.
4. Note and record distance between lock nut and end
of door locking pin (bullet). This information will be
needed during bullet installation described in Step 6.
17. From the right side access to the upper portion of the
steamer, disconnect the two leads of the door
switch.
OM/SM-HY-6G(CE)
ꢁ1
Download from Www.Somanuals.com. All Manuals Search And Download.
18. The wires for the alternate door switch may be
foundunder the cavities. Connect the two wires from
the switch to the wiring harness.
13. Align door to steamer, per Paragraph 10.24..
10.28 Door Handle, Magnet and Block Assembly
Door Handle
Magnet & Block
Screws
P/N 070123
P/N 069762
P/N 005764
P/N 074252
19. Close steamer door and operate steamer for six to
eight minutes. If steamer fan does not operate,
check location of door magnet and try operation
again. If fan operation problem still exists, refer to
the Troubleshooting Section of this Manual.
Door Cam
U-Channel Assy P/N 094144
Outer Door Panel P/N 094140
Inner Door Panel P/N 094141
Door Insulation Bd P/N 094192
20. Allow steamer to operate for approximately 5
minutes, and then check for leaks. If there are no
leaks then steamer is ready for operation. If there
are leaks around the door, recheck door alignment,
and if necessary, door gasket installation.
1. Turn steamer off and allow it to cool.
2. Remove screws and U-channel from the door.
10.27
Door Gasket
P/N 094147
3. Remove screws securing handle, door handle, and
cam.
1. To install, turn off steamer, and allow to cool.
4. Apply a NEVER-SEEZ high temperature compound
to the door cam and Locktite 242 to screw threads.
2. Remove the door hinge using one of the following
two methods:
5. Assemble door cam to handle with screws.
a) Support door weight and remove hinge pin, or
6. Be sure door handle is in the DOWN position. Hold
U-channel door spring open with a screwdriver or
similar tool, then install the U-channel. Do NOT
install screws at this time
b) Support weight of the door and remove the two
door-to-hinge bolts.
3. Place the door on a flat, clean, smooth table or
7. Check operation of the cam and door spring. Push
up on the door handle and check if spring opens. If
the spring does not open, the cam and spring are not
correctly aligned and the problem must be corrected.
similar support. Be careful not to scratch the door
4. Position door on workbench so that its front is lying
flat, with handle hanging over edge of bench.
8. Apply a light amount of Locktite 242 to screws, then
install screws, securing U-channel.
5. Remove inner door panel.
6. Remove and discard gasket.
10.29
Door Spring
P/N 078911
7. Clean back of the inner door panel. Be sure old
sealant is completely removed.
1. Turn off steamer and allow it to cool.
8. Install new door gasket around inner door panel. Be
sure the inner door panel flange is fully inserted into
the door gasket groove.
2. With flat blade screwdriver, remove two screws on
U-channel and remove U-channel from door.
3. Carefully remove retaining ring from one end of
spring support pin, then remove the pin by moving
the pin to the left and to the right.
9. Apply a high temperature silicone sealant, such as
GE RTV 180 or equivalent, to the four door spacers.
10. Apply Locktite 242 to the inner door panel mounting
screws.
4. With a wrench, remove the nut. Lift the spring
retainer, and then remove the spring.
11. Install inner door panel and door gasket on the door
spacers, and tighten mounting screws.
To Install:
5. Apply a high temperature (rated 250ºC) anti-seize,
lubricating compound (NEVER-SEEZ) on the bottom
of the U-channel surface that contacts the spring.
12. Align door with hinge and insert hinge pin OR apply
Locktite 242 to the door-to-hinge bolts, then install
door and mounting bolts. Do NOT tighten mounting
bolts at this time.
ꢁꢀ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
6. Install spring onto brass roller, then place square
plate over spring.
2. Note and record the distance between the lock nut
and the end of the (bullet shaped) door locking pin.
This information is important and will be needed for
installation.
7. Apply Locktite 242 to Keps nut and install Keps nut.
8. Install spring support pin, then push the retaining ring
onto the pin using a screwdriver.
3. Loosen lock nut and remove lock nut and door pin
(bullet) from front panel.
9. Hold door spring open with a screwdriver or similar
tool, hold door handle in the down position and install
the U-channel, top end first - then lower channel into
position. Check that spring opens when door handle
is pushed up.
4. To install new door locking pin, coat locking pin
threads with NEVER-SEEZ high temperature
compound.
5. Install locking pin and lock nut. The lock nut to end-
of-bullet distance should be approximately the same
as measured above, in Step 2.
10. Apply Locktite 242 to U-channel mounting screws,
then install the screws.
10.31
Indicator Neons (Lockout)
11. Replace the two screws in the U-channel, applying
Locktite 242 to secure them in place.
1. Turn off main gas supply
2. Turn off oven power and disconnect from branch
circuit power.
3. Remove upper right side panel
10.30
Door Locking Pin
P/N 078914
Lock Nut
P/N 003823
4. Replace neons as necessary.
1. Turn steamer off and allow it to cool.
OM/SM-HY-6G(CE)
ꢁꢁ
Download from Www.Somanuals.com. All Manuals Search And Download.
ꢁꢂ
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
12.0 - Service Log
Model No.
Purchased From
Serial No.
Location
Date Purchased
Purchase Order No.
Date Installed
For Service Call
Date
Maintenance Performed
Performed by
OM/SM-HY-6G(CE)
ꢁꢃ
Download from Www.Somanuals.com. All Manuals Search And Download.
Limited Warranty To Commercial Purchasers*
(for Areas Outside of the U.S. and Canada)
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 twelve months from date of installation or eighteen months from date of shipment with the following
conditions and subject to the following limitations.
I.
This parts 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 areas outside the U.S. 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 parts, at Groen's sole election, for any
Groen Equipment, including but not limited to, draw-off valves, safety valves, gas and electric components,
found to be defective during the warranty period.
IV. This warranty does not cover boiler maintenance, calibration, or 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, 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.) manufacturer's
equipment or if used as a consumer product, such Equipment is sold AS IS and without any warranty.
* (Covers All Food Service Equipment Ordered After October 1,1995)
ꢁ6
OM/SM-HY-6G(CE)
Download from Www.Somanuals.com. All Manuals Search And Download.
1055 Mendell Davis Drive • Jackson MS 39272
888-994-7636 • 601-372-3903 • Fax 888-864-7636
groen.com
PART NUMBER 128805, REV. C (4/06)
Download from Www.Somanuals.com. All Manuals Search And Download.
|