Groen GG3-S Service Manual
OPERATOR MANUAL
Model: GG3-S
OM-GG3-S
Pressureless Steamer
Cabinet mounted
Stainless steel
Pressureless
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS
AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE
LIMITED WARRANTY TO
COMMERCIAL PURCHASERS
(Continental U.S., Hawaii & Canadian Sales Only)
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 (12) twelve
months, with the following conditions and subject to the following limitations.
This parts and labor warranty is limited to Groen Equipment sold to the original
I.
commercial purchaser/users (but not original equipment manufacturers), at its
original place of installation, in the continental United States, Hawaii and Canada.
II.
Damage during shipment is to be reported to the carrier, is not covered under this
warranty, and is the sole responsibility of purchaser/user.
III.
Groen, or an authorized service representative, will repair or replace, at Groen's
sole election, 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. As to warranty service in the territory described above, Groen will
absorb labor and portal to portal transportation costs (time & mileage) for the first
twelve (12) months from date of installation or fifteen (15) months from date of
shipment from Groen.
This warranty does not cover boiler maintenance, calibration, periodic adjustments
IV.
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 Foodservice Equipment Ordered after October 1, 1995)
Table of Contents
EQUIPMENT DESCRIPTION……………………………………... 2
UNPACKING………………………………………………………... 3
INSTALLATION…………………………………………………….. 3,4,5
INITIAL START-UP…………………………………………………. 5
OPERATION…………………………………………………………
STYLE I………………………………………………………. 6
STYLE II……………………………………………………… 7
MAINTENANCE…………………………………………………….. 8
TROUBLESHOOTING……………………………………………... 9
REFERENCES……………………………………………………… 9
PARTS LISTS……………………………………………………….
STYLE I………………………………………………………. 10
STYLE II……………………………………………………… 11
DOOR ASSEMBLY………………………………………………… 12
DIAGRAMS AND SCHEMATICS…………………………………. 13
STYLE I………………………………………………………. 14
STYLE II……………………………………………………… 15
SERVICE LOG……………………………………………………… 16
WARRANTY………………………………………………………… 17
1
Equipment Description
The Groen GG3-S Atmospheric Steamer consists of a cooking chamber and a control compartment
which houses the electrical components and the plumbing. These are encased in a stainless steel
cabinet.
The automatic drain on the GG3 is one outstanding feature and is effective in flushing out
sediment. This drain operates automatically when the main power switch is turned off.
The cooking chamber door features adjustable hinges and latch and opens to the side. The drain is
located in the lower rear center of the chamber and is connected to the drain pipe. This pipe
includes a small spray condenser which suppresses any steam escaping the chamber.
The GG3-S Steamer will accept the following combinations of full-size perforated or solid cafeteria
pans:
Two 4" deep pans
Three 2 1/2" deep pans
Six 1" deep pans
The GG3-S and GG3-SM steamers require an outside, food-safe steam source for their energy
supply. (Models GG3-SE and GG3-SG have generators built into their cabinet base.) The control
assembly can be accessed by removing only two screws and can be lifted out from the front. Power
should always be turned off before removing any panels.
The GG3-S Steamer is designed to be virtually maintenance-free; however, normal wear of certain
parts may require that they be replaced after prolonged use. This steamer has been adjusted at the
factory, therefore no field adjustment should be necessary. If need does arise for adjustment, only
authorized Groen service personnel should handle the work.
The GG3-S steamer is manufactured in two styles, which are easily distinguished by the presence
or absence of a power switch on the control panel.
GG3-S Style I GG3-S Style II
GG3-SG steamers and steamer-kettle combinations manufactured after January 1,1988 use Style
II.
All other GG3-S steamers and steamer-kettle combinations, including GG3-SG units manufactured
before January 1,1988 and GG3-S steamers supplied as stand-alone units, use Style I.
2
Unpacking
The GG3-S Steamer will arrive completely assembled in either a box or a crate. Immediately upon
receipt, the box or crate should be inspected carefully for exterior damage and then opened. The unit
should then be inspected for concealed damage. Any shipping damage. Any shipping damage or
incorrect shipments should be reported to the delivering agent.
After inspection, the unit should remain crated until installation.
When installation is to begin, the crate or box should be removed from the skid. If the steamer has
been purchased separate from the base on which it will stand, the unit can then be hoisted onto its
mounting using a cloth-wrapped sling (to protect the polished surfaces).
If the steamer was shipped separate from its base, be certain to retain the four skid mounting bolts, as
they are required for installation.
WARNING: THE INSTALLATION OF THE GG3 STEAMER MUST BE DONE BY PERSONNEL
QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING. ALL APPLICABLE
CODES MUST BE ADHERED TO. IMPROPER INSTALLATION CAN CAUSE INJURY
TO PERSONNEL OR DAMAGE TO THE STEAMER.
Installation
NOTE: The general and plumbing connection instructions apply to a separately purchased steamer.
For a steamer-base combination (GG3-SE, GG3-SG, or GG3-SC), see the base unit operator
manual.
NOTE: Any mechanical or electrical change must be approved by the Groen Food Service En
gineering Department.
Once the GG3 Steamer has been removed from its crating and placed on the leveled table or counter
top, the unit should be secured by means of the skid mounting bolts provided. The bolts are to be
placed through the table top and secured into the anchor nuts on the steamer base. After the steamer
is securely in place, the joint between the base of the steamer and the table (or counter) top should be
sealed with a suitable caulking (such as RTV sealant).
NOTE: If the steamer is purchased with optional legs, they are to be screwed into the base anchor
nuts.
Now that the steamer has been secured in place the following service connections must be made by a
qualified service representative.
(For more information on connections and routing, also refer to the Diagrams and Schematics section
and the Parts Lists illustrations.)
Steam Connection
If the unit was purchased without a steam generator and requires direct steam service, connect the
steam line to the ½" NPT steam pipe located at the rear of the unit. The maximum steam flow rate
should be 104 Ib/hr at a pressure of 3 PSIG.
CAUTION: Supply must connect to a food-safe steam source.
3
Water Connections
The "cold water" line (1/4" NPT) must be connected to the factory-supplied flexible hose.
Connect the hose to the steamer. The maximum condenser flow rate is 0.25 GPM (gallons
per minute). For optimum operating conditions, the main water supply flow rate should be
0.33 GPM at a pressure of 30 PSIG. Install a pressure reducing valve to accurately maintain
the required pressure and flow rate. GROEN also recommends that a strainer (user supplied)
be added in the water line.
Drain Connections
The steamer is equipped with a 1 1/4" ID x 48" long drain hose. Direct this hose over an open
floor drain, or connect it to a 1" (or larger) IPS pipe header and extend the header to a
nearby floor drain. GROEN recommends that the header have no more than 2 elbows and
be no longer than 6 ft. If the header will have more than 2
elbows or be longer than 6 ft. use 1 1/2" IPS pipe.
Remember: This is a gravity drain that must be able to
vent freely to the atmosphere.
At the floor drain there must be an "air gap" of at least 2",
unless local codes specify a different gap. The drain must be set lower than the steamer
base.
CAUTION: The steamer drain discharges steam and hot condensate. To direct the flow of
the condensate to the floor drain, comply with these instructions and recommendations.
Electrical Connections
The GG3-S Steamer uses an electrical connection of 115 VAC, 1 phase, 50/60 Hz, and 15 amps.
The wires are to be connected to the terminal block inside the junction box located at the rear of the
unit. Use 14 gauge (1.8 mm) copper wire rated at least 75°C. Local codes and/or The National
Electrical Code should be observed in accordance with ANSI/NFPA-70, latest edition.
For Model GG3-SE (self-contained electric generator) refer to electrical requirements in cabinet
base manual.
Gas Connection
For Model GG3-SG (self-contained gas generator) refer to cabinet base operator manual.
4
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