Groen ST-6E User Manual

OPERATOR MANUAL

IMPORTANT INFORMATION, KEEP FOR OPERATOR

This manual provides information for:

MODEL ST-6E
GROEN STEAMER

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

FOR YOUR SAFETY

Do not store or use gasoline or other ammable vapors
and liquids in the vicinity of this or any other appliance.

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
damage. 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.

PART NUMBER 162954 REV A (08/13)

1055 Mendell Davis Drive

Jackson, MS 39272

888-994-7636, fax [phone]

unifiedbrands.net

IMPORTANT - READ FIRST - IMPORTANT

WARNING: THE UNIT MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND
PLUMBING. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO
THE EQUIPMENT. THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH APPLICABLE CODES.

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

CAUTION: DO NOT INSTALL THE UNIT IN ANY WAY WHICH WILL BLOCK THE REAR VENTS, OR WITHIN 2
INCHES OF A HEAT SOURCE SUCH AS A BRAISING PAN, DEEP FRYER, CHAR BROILER OR
KETTLE.

CAUTION: LEVEL THE UNIT FRONT TO BACK, AND PITCH IT SLIGHTLY TO THE FRONT, 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.

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 COMPLETELY BEFORE CLEANING.

WARNING: USE MILD CLEANING AGENTS ONLY. CAREFULLY READ THE WARNINGS AND FOLLOW
THE DIRECTIONS ON THE LABEL OF EACH CLEANING AGENT. USE SAFETY GLASSES
AND RUBBER GLOVES AS RECOMMENDED BY CLEANING AGENT MANUFACTURER.

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 AGENT THAT CONTAINS ANY SULFURIC ACID, OR ANY
CHLORIDE, INCLUDING HYDROCHLORIC ACID. IF THE CHLORIDE CONTENT OF ANY
PRODUCT IS UNCLEAR, CONSULT THE MANUFACTURER. DO NOT USE A CLEANING OR
DELIMING AGENT THAT CONTAINS MORE THAN 30% PHOSPHORIC ACID.

NOTICE: DO NOT USE ANY DEGREASER THAT CONTAINS POTASSIUM HYDROXIDE OR SODIUM
HYDROXIDE OR THAT IS ALKALINE.

WARNING: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY UNIFIED BRANDS 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
CIRCUIT BEFORE SERVICING. FAILURE TO DO SO CAN RESULT IN INJURY OR DEATH.

2 OM-ST-6E

Table of Contents

Important Operator Warnings ........................................................page 2

References..................................................................................... page 3

Equipment Description.................................................................. page 4

Inspection and Unpacking ............................................................ page 4

Installation .................................................................................. page 5-6

Initial Start-Up............................................................................... page 7

Operation ...................................................................................... page 8

Cleaning................................................................................... page 9-10

Maintenance................................................................................. page 11

Troubleshooting............................................................................ page 12

Wiring Diagram ........................................................................... page 19

Service Log ................................................................................... page 20

References

UNDERWRITERS LABORATORIES, INC.
333 Pngsten Road
Northbrook, Illinois 60062

NFPA/70
The National Electrical Code

NATIONAL SANITATION FOUNDATION
789 N. Dixboro Rd.
Ann Arbor, Michigan 48113-0140

NATIONAL FIRE PROTECTION ASSOCIATION
60 Batterymarch Park
Quincy, Massachusetts 02269

INTERTEK (ETL)
1950 Evergreen Blvd, Suite 100
Duluth, GA 30096

OM-ST-6E 3

Equipment Description

Your ST-6E steamer is designed to give years of service. It has a stainless steel
cavity (cooking chamber) which is served by an electric-heated atmospheric steam
generating reservoir.

Each cavity holds up to six steam table pans (12” x 20” x 2-1/2” deep) as shown
below.

Model Pans Per Capacity Per Type

12 x 20 x 2-1/2” (steamer) 12 x 20 x 4” (steamer)

ST-6E 6 3

A stainless steel case encloses the cavity, the steam generating reservoir and the
control compartment that houses electrical components. Operating controls are on the
front panel.

The drain system on all models includes a spray condenser, which cools drain water.

CAUTION

SHIPPING STRAPS ARE UNDER TENSION

AND CAN SNAP BACK WHEN CUT.

Inspection & Unpacking

Your steamer is delivered completely assembled strapped to a skid. On receipt, inspect
carefully for exterior damage.

Carefully cut the straps. Be careful to avoid personal injury or equipment damage.

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.

Steamer Weight (LBS) Weight (KGS)

ST-6E 275 125

4 OM-ST-6E

Installation

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 REAR

VENTS BLOCKED OR WITHIN 2 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, AND

PITCH SLIGHTLY TO THE FRONT.

FIGURE A

18 -inch

radius

457 mm

1. Minimum Clearances: The steamer requires the following minimum clear­ances to any surface, combustible or non-combustible.

Right Side 2 inches

Left Side 2 inches
Rear 6 inches

Steam Free Zone: The steamer can be damaged by steam from external

sources. Do not install the steamer over a steam venting drain. Ensure that
steam is not present in an area bounded by the footprint of the steamer and a
circle 18 inches in radius about the right rear corner of the steamer (see Figure
A at left).

2. Electrical Supply Connections

(current and power demands for each unit are as shown below)

Model Rated Current Demand Per Cavity

208 3P A/KW 208 1P A/KW 240 1P A/KW 240 3P A/KW

ST-6E 30/10.8 52/10.8 60/14 36.6/14

A. Panel Removal - Right Side

Open the wiring and control panel by removing screws from the right

side panel. Remove and set aside.

B. Supply Voltage
The unit must be operated at the rated name plate voltage. The

name plate can be found on the rear of the unit.

CAUTION

EACH UNIT MUST HAVE A SEPARATE

GROUND WIRE FOR SAFE OPERATION.

WARNING

TO AVOID DAMAGE OR PERSONAL INJURY,

FOLLOW THE WIRING DIAGRAM EXACTLY.

C. Phase Selection
Refer to steamer wiring diagram and element wiring on pages 20

and 21 for wiring information.

D. 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.

E. Supply Wire
The equipment grounding wire must comply with the National
Electrical Code (NEC) requirements. The wiring diagram on the inside

of the unit’s right side cover gives directions for proper connection
of the terminal block. The wire must be used or the unit will
not meet Underwriters Laboratories and NEC requirements. The
electric hole is sized for a one-inch conduit fitting.

F. Branch Circuit Protection
Each steamer, including individual units of stacked models,

should have its own branch circuit protection and ground wire.

OM-ST-6E 5

Installation

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 BOILING WATER.

FIGURE B

3. 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 PSI. If pressure is above 60 PSI, a pressure regulator will be needed.
These pressures must provide the 1.5 gallons per minute required for proper
steamer function.

A 3/4 inch female NH connector (garden hose type) is used to attach the water

supply to the inlet valve. Minimum inside diameter of the water feed line is 1/2
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.

This equipment is to be installed to comply with the basic plumbing code of the

Building Officials and Code Administrators International, Inc. (BOCA) and the
Food Service Sanitation Manual of the Food and Drug Administration (FDA).

4. Drain Connection

Model Drain ID Hose Size Required (IN)

ST-6E 1.5”

Level the steamer front to back, and pitch it slightly to the front (maximum 1/4

inch) by adjusting the optional legs or the bullet feet on the optional stand.

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.

Install the drain line with a constant downward pitch (see Figure B at left).
IMPORTANT: Do not allow water traps in the line. A trap can cause pres-

sure build-up in the cavity, which may cause the door gasket to leak.

For proper drain line connection, the drain line must have a constant downward

pitch of at least 1/4” per foot. Observe local code regarding air gap spacing and
drain connections.

5. Counter-Mounted Units

This section is applicable when 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.

6 OM-ST-6E

Initial Start-Up

WARNING
WHEN YOU OPEN THE DOOR, STAY AWAY
FROM STEAM COMING OUT OF THE UNIT.

STEAM CAN CAUSE BURNS.

After the steamer has been installed, test it to ensure that the unit is operating
correctly.

1. Remove all literature and packing materials from the interior and exterior of the
unit.

2. Make sure the water supply line is open and the drain valve handle is in the
closed position.

3. Turn on electrical service to the unit. The steamer will not operate without
electrical power. Do not attempt to operate the unit during a power failure.

NOTE: The door MUST be closed for the elements to operate.

4. To turn unit on, toggle the rocker switch to the ON position.

5. Toggle the mode selector switch to full steam mode (top position).

6. When the steam generating reservoir has filled with water, the heaters will
begin heating. Within 20 minutes the remote Timer should indicate that the
steamer is ready.

7. To shut down the unit, toggle the ON/OFF switch to the OFF position. Wait 30
minutes and rotate the drain valve to open position to drain the water reservoir.

8. If the steamer operates as described, the unit is functioning correctly and ready
for use.

OM-ST-6E 7