Groen HyPerSteam (2)HY-5G, HyPerSteam HY-5G, HyPerSteam (2)HY-5GF Operator's Manual

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✩ IMPORTANT INFORMATION

IMPORTANT INFORMATION ✩✩✩✩ KEEP FOR OPERATOR

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IMPORTANT INFORMATION IMPORTANT INFORMATION

KEEP FOR OPERATOR ✩✩✩✩ IMPORTANT INFORMATION

KEEP FOR OPERATOR KEEP FOR OPERATOR

IMPORTANT INFORMATION ✩✩✩✩

IMPORTANT INFORMATION IMPORTANT INFORMATION

OPERATOR MANUAL OM-HY-5G

Part Number 138486 Rev B DOMESTIC

MODELS: HY-5G, (2)HY-5G

HyPerSteam™
Atmospheric Convection
Steamer

Self-Contained
Gas Heated
Capacity: 5 Steamer Pans [per cavity] (HY-5G)

(12" x 20" x 2½”)

HY-5G

(2)HY-5GF

THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE. READ,
UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS
CONTAINE D IN THIS MANUAL.

FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS A ND
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE

.

POST IN A PROMINENT LOCATION
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. T HIS
INFORMATION SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS
SUPPLIER. AS A MINIMUM, TURN OFF GAS AND CALL YOUR GAS
COMPANY AND YOUR AUTHORIZED SERVICE AGENT. EVACUATE ALL
PERSONNEL FROM THE AREA.

WARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH.
READ THE INST ALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.

OM-HY-5G

IMPORTANT — READ FIRST — IMPORTANT

WARNING: THE UNIT MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY

AND PLUMBING. IMPROPER INSTALLATION CA N 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 SIDE VENTS, OR WITHIN

12 INCHES OF A HEAT SOURCE SUCH AS A BRAISING PAN, DEEP FRYER, CHAR BROILER

OR KETTLE.
CAUTION: LEVEL THE UNIT FRONT TO BACK, OR PITCH IT SLIGHTLY TO THE REAR, TO AVOID

DRAINAGE PROBLEMS.
WARNING: FOLLOW THE WIRING DIAGRAM EXACTLY WHEN CONNECTING A UNIT TO AVOID

DAMAGE OR INJURY. WIRING DIAGRAM IS LOCATED ON THE INSIDE OF THE RIGHT

PANEL.
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.
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 REA D THE WARNINGS AND FOLLOW THE DIRECTIONS ON THE LABEL OF

EACH CLEANING AGENT.

RECOMMENDED BY DELIMING AGENT MANUFA CTURER.
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 RIGHT SIDE PANEL HAS BEEN

RETURNED TO ITS PROPER LOCATION.
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.

OR DE-LIMING AGENT THAT CONTAINS MORE THAN 30% PHOSPHORIC ACID.
NOTICE: DO NOT USE ANY DE-GREASER THAT CONTA I NS 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.

USE SAFETY GLASSES AND RUBBER GLOVES AS

DO NOT USE A CLEANING

WARNING: HIGH VOLTAGE EXISTS INSIDE CONTROL COMPARTMENTS. DISCONNECT FROM BRANCH

CIRCUIT BEFORE SERVICING. FAILURE TO DO SO CAN RESULT IN SERIOUS INJURY OR

DEATH.

2

OM-HY-5G

Table of Contents

OPERATOR WARNINGS ....................................................................2

REFERENCES............................................................................. 3

EQUIPMENT DESCRIPTION .................................................................4

INSPECTION AND UNPACKING ..............................................................4

WATER QUALITY AND TREATMENT ..........................................................5

INSTALLATION AND START-UP ..............................................................6

OPERATION ............................................................................. 10

CLEANING...............................................................................12

MAINTENANCE ...........................................................................14

TROUBLESHOOTING......................................................................14

PARTS LIST.............................................................................. 15

ELECTRICAL SCHEMATICS................................................................. 19

SERVICE LOG............................................................................20

WARRANTY.............................................................................. 22

References

CSA International
8501 East Pleasant Valley Road
Cleveland, OH 44131

KLENZADE SALES CENTER
ECOLAB, Inc.
370 Wabasha
St. Paul, Minnesota 55102
800 328-3663 or 612 293-2233

NATIONAL FIRE PROTECTION ASSOCIATION
60 Batterymarch Park
Quincy, Massachusetts 02269

NFPA/70 The National Electrical Code
NATIONAL SANITATION FOUNDATION

3475 Plymouth Road
Ann Arbor, Michigan 48106

3

OM-HY-5G

Equipment Description

Your Groen HY-5G or (2)HY-5G 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 gas-heated. A
powerful blower circulates the steam in the cavity to
increase heating efficiency.

Each cavity holds up to five steam table pans (12" x
20" x 2½" deep). An 18 gauge 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.

The HY-5G steamer is equipped with fully electronic
controls and a button-activated, pre-programmed
CLEAN cycle. These units are readily identified by
their unique control panels. The On-Off switch is
operated by touch pad controls, and the distinctive
symbol for steam is integrated into the panel.

The HY-5G steamer holds five standard
12" x 20" x 2½" steamer pans.

The drain system on all models includes a spray
condenser, which helps keep steam from escaping
from the chamber and cools drain water.

BURNER FIRING RATE

Steamer

HY-5G 62,000 62,000
(2)HY-5G 124,000 124,000

Natural Gas at

3.2" W.C.

L.P. Gas at

10.5" W.C.

Inspection and Unpacking

The Steamer will be delivered completely assembled
in a heavy shipping carton strapped to a skid. On
receipt, inspect carton carefully for exterior damage.

CAUTION
SHIPPING STRAPS ARE UNDER TENSION AND
CAN SNAP BACK WHEN CUT.

Carefully cut the straps and detach the s ides 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.

The (2)HY-5G holds up to five pans per cavity.

CAUTION
THE HY-5G WEIGHS 203 POUNDS (92 KG). THE
THE (2)HY-5G WEIGHS 460 POUNDS (207 KG ).
YOU SHOULD GET HELP AS NEEDED TO LIFT
THIS WEIGHT SAFELY.

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, check packing materials to
make sure loose parts such as the condensate drip
tray are not discarded with this material.

4

Water Quality and Treatment

It is essential to supply the steam generator with water
that will not form scale. Even though the steam
generator/boiler is engineered to minimize scale
formation, scale development depends on the
hardness of your water and the number of hours you
operate the equipment each day.

Most water supplies contain minerals which form scale.
It is this scale which could lead to an early component
failure.

Your local water utility can tell you about the minerals
in your water. The water going to the steam generator
should have between 30 and 40 parts per million (ppm)
total dissolved solids (TDS) and should have a pH
(acidity rating) of 7.0 to 9.0. Please follow these
simple precautions:

1. The best way to prevent scale is to use a Groen
PureSteem™ Water Treatment System which has
been specifically designed for Groen steamers and
combination ovens. Do not rely on unproven
water treatment systems sold for scale
prevention and removal. They are not

specifically designed to work with Groen
steamers and combination ovens.

OM-HY-5G

HY-5G

2. A well-maintained water treatment system and a
regular cartridge replacement schedule is
essential.

3. Using a Groen PureSteem™ Water Treatment
System will provide longer steam generator/boiler
life, higher steam capacity, and reduce
maintenance requirements.

4. If you notice a slowdown in steam production or an
increase in deliming, have the steamer checked for
scale build-up. This could be an indication that the
water treatment cartridges need replacing. Heavy
scale reduces the unit’s ability to boil water, and
can even cause component failure.

MINIMIZE SCALE PROBLEMS BY INSTALLING
AND MAINTA INING A GROEN PureSteem™
WATER TREATMENT SYSTEM AND BY DELIMING
THE STEAMER REGULARLY.

The Groen HY-5G Steamer features two separate
water inlets — one for the steam generator/boiler
(treated water), the other for the spray condenser
(untreated water). The second intake will reduce
treatment requirements resulting in significant savings.

The dual water connections are side by side on the
rear of the unit. When seen from the back of the unit,
the treated water intake is on the left.

(2)HY-5GF

The second water connection can reduce treated
water requirements.

5

OM-HY-5G

Installation and Start-Up

WARNING
THE UNIT MUST BE INSTALLED BY PERSONNEL WHO ARE QUALIFIED TO WORK WITH GAS,
ELECTRI CITY AND PLUMBING. IMPROPER INSTALLATION CAN CA USE INJURY TO PERSONNEL AND/OR
DAMAGE TO THE EQUIPMENT. THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH APPLICABLE

CODES

DO NOT INSTALL THE UNIT WITH THE RIGHT OR LEFT SIDE VENTS BLOCKED OR WITHIN 12 INCHES OF
A HEAT SOURCE (SUCH AS A BRAISING PAN, DEEP FAT FRYER, CHARBROILER OR KETTLE).

TO AVOID DRAINAGE PROBLEMS, LEVEL THE UNIT FRONT TO BACK, OR PITCH IT SLIGHTLY TO THE
REAR.

.

CAUTION

A. Installation

The HY-5G steamer is suitable for installation on or
near both combustible and noncombustible surfaces.
Minimum installation clearances are:

Right Side 2 inches
Left Side 2 inches
Rear 6 inches

However, for easy service at least 12 inches
clearance is required for the right side of the unit,
and it may not be installed within 12 inches of a
heat source, as stated in the Caution above.

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.

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.

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:

Electrical Code should be observed in
accordance with ANSI/NFPA 70-1987 (or latest
edition). AN ELECTRICAL GROUND IS RE-
QUIRED. The electrical schematic is located in
the service compartment and in this manual.
Maximum load is 2½ AMPs. In Canada, provide
electrical service in accordance with the
Canadian Electrical Code, CSA C22.1 Part 1
and/or local codes.

2. Gas Supply Connection

Connection to the gas supply can be completed
with ½” NPT pipe or approved equivalent.
Although the immediate connection to the
appliance is ½” NPT, gas supply piping must be
large enough to provide 62,000 BTU/hr/cavity.
Supply pressure must be at least 4.5” W.C.
(maximum 14” W.C.) for natural gas or 12” W.C.
(maximum 14” W.C.) for LP gas. In Canada, the
installation must conform to the Canadian Gas
Code, CAN 1-B149, Installation Codes for Gas
Burning Appliances and Equipment and/or local
codes. Check all gas connections for leaks prior
to unit operation.

The unit and its individual shutoff valve must be
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).

1. Electrical Supply Connection

Provide 115 VAC, 60 HZ, 1 PH, 15 AMP service.
Bring wire in through hole on the lower left back
panel. Each cavity requires a separate cord for
connections. Local codes and/or the National

6

After the unit has been connected to the gas
supply, all gas joints must be checked for leaks.

No flame should be used when checking for
leaks. A thick soap solution or other suitable

leak detector should be used.

OM-HY-5G

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.

For a unit on casters, complete connection to the
gas supply with connectors that comply with the
standard for connectors for moveable gas
appliances, ANSI Z21.69 — latest edition.
Restrain movement of the unit by attaching a
cable or chain to the eyelet (provided at the back
of the frame) and anchoring the cable or chain to
the wall or floor. Make the length and location of
the cable such that the unit cannot pull on the
gas connection while the cable is connected.

2. Water Connection(s)

Install a check valve to prevent back flow in the
incoming cold water line, as required by local
plumbing codes. Water pressure in the line
should be between 30 and 60 PSIG and must
deliver a flow rate of 1.5 to 3.0 gallons per
minute. If pressure is above 60 PSIG, a
pressure regulator will be needed.

¾ inch female NH connectors (garden hose
type) are used to attach the water supply to the
inlet valves. One connector is for the steam
generator (treated), the other is for the spray
condenser (untreated). Minimum inside
diameter of the water feed line is ½ inch. Use
a washer in the hose connection. Do not allow
the connection to leak, no matter how slowly. Do
not over tighten hose connections. Treated
(softened) water goes to the right (seen from the
rear of the unit), and untreated water to the left.
Connections for both are made as shown on
Page 5. Though not recommended, an adapter
to use a single water intake is available, P/N

138473.

3. Drain Connection

Level the steamer front to back, or pitch it slightly
to the rear (maximum ¼ inch) by adjusting the
optional legs or bullet feet on optional stand.

A 2 inch ID hose may be attached to the drain
pipe (supplied).

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.

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.

4. 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-5G(S), RETROFIT SUPPLEMENT
(Part Number 121087).

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.

A. Water Connection

The same water supply connection is used for
both units. At the water inlet valves, ¾ inch
female NH connectors (garden hose type) are
used for the water supplies. There are two
connections to be made. Treated water
(softened) is connected to the right valve fitting
(looking from the rear of the unit) and untreated
water to the left fitting.

B. 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.

C. Gas Connection

Separate gas connections are required for each
steamer in the stack. Gas supply must be
adequate under all conditions as listed on

page 6.

7

OM-HY-5G

D. Drain Connection

Steamers must be leveled front to back, or
pitched to the rear (maximum ¼ inch) by
adjusting the bullet feet on the stand.

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.

A 2 inch ID hose may be attached to the unit
drain. It must be rated for very hot water.

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.

Install the line with a constant downward pitch.

Proper Drain Line Connection - Drain Line must have a constant downward pitch of at least 1/4" per foot.
(2)HY-5G shown.

8