Groen C-2-20G User Manual
Combination Steamer-Ovens
Description
Double stacked Combination Steamer-Oven shall be a
Groen Model (2)C/2-20G Convection Combo (Specify right
or left door swings, control panel type, door type, and for
natural or propane gas) per bulletin 140822 as follows.
Construction
Combination Steamer-Oven shall be all 304 stainless
steel construction. Heavy-duty doors (specify glass or
solid) are field adjustable, reversible and close with gentle
push or slam.
Patented tube fired heat exchanger surrounds each
product cavity. Narrow vertical steam generator is located
behind each product cavity. Heavy insulation surrounds
each cavity/combustion chamber on all sides.
Stainless steel support stand with front mounted steam
generator deliming port standard.
Finish
Cabinet exterior and doors shall be finished to uniform
#3 finish. Cavities, rack supports and pan racks shall be
polished stainless steel. Control panels shall be smudge
resistant matte finish film ensuring maximum ease in
cleaning and maintaining an attractive appearance.
CSA Design Certified
Steamer shall be CSA (formerly AGA) design certified to
ANSI Z83.11”.
Sanitation
Unit shall be designed and constructed to meet NSF
requirements, and be NSF listed. Cooking chamber top,
bottom and side panels with pan supports and chamber
doors are removable for easy cleaning. Programmed
cavity cleaning and steam generator deliming cycle, with
easy access table mounted deliming port are standard.
Special blower provides high speed forced convection
within cooking chambers in all cooking modes. Cavity is
designed for more even heat and steam distribution.
Self Contained Steam Source
A high efficiency gas combustion chamber generates
steam. All condensate exits through cavity drain. Safety
or low water cutoff provided and generator automatically
drains when unit is turned off. Standing pilot with electronic
ignition is standard.
Pan Capacity
Pan Size/Type Number
18 x 26” Bake Pans 18
12 x 20 x 2 1/2” Steamer Pans 20
model (2)C/2-20G
Combination
Convection Steamer
Convection Oven
Double Stacked
Gas Heated
Full Size
Stand Mounted
Short Form
Unit shall be a Groen
Convection Combo Model
(2)C/2-20G (Specify right or left
hand door swing, control panel
type, door type, and natural
gas or propane) per bulletin
140822. Unit shall operate as
convection oven, fan forced
convection steamer and in
a combination super heated
steam mode. Each cavity
shall have all solid state touch
panel controls with digital
timer, temperature readout, a
hidden door interlock switch
and self diagnostic trouble
shooting program standard.
Programmed clean cycle and
easy access steam generator
deliming port standard.
Stainless steel construction,
field reversible doors, and
support stand standard. Unit
shall have 575°F maximum
operating temperature with
accurate cavity temperature
control at all operating
temperatures. Low water
sensor and automatic
blowdown standard. Unit shall
have ten (12x20x2 1/2” deep)
steamer pan capacity or nine
(full size) bake pan capacity
per cavity. CSA & CGA Design
Certified and NSF listed. Cold
water, drain, gas and electric
connections required. Made in
U.S.A.
Controls
Unit shall have all solid state controls to include digital
timer with LED readout, power on/off and mode selection
touch pad switches and knob set temperature control
with continuous LED digital readout. Temperature can be
displayed in either F or C. If the “Cook Probe Hold” option
is ordered a low range solid state temperature control with
continuous LED readout provided. If Programmable option
is ordered up to 50 recipes can be entered and used
for cooking. The “Cook Hold Probe” and Programmable
options provide a temperature probe to allow cooking to
a selected core temperature. Hidden door interlock switch
cuts power to fan and oven/steamer elements when door
is opened. Wait, Ready and Hot indicator lights provide
status in each cooking mode. Clean and Service lights
indicate when the unit needs attention. Solid state circuitry
has self diagnostic program and pre-programmed clean
cycle to assist in trouble shooting and daily cleaning.
Performance Features
ON switch activates power to circuitry. When Oven Mode
is selected, gas burners ignite and side mounted blower
activates, to provide oven temperatures up to 575˚F. When
Steam Mode is selected, steam generator fills with water
and burner assembly ignites, to generate pressureless
steam at 212˚F. When Combo Mode is selected, oven and
steam generator burner assemblies provide a continuous
superheated steam environment.
1055 Mendell Davis Drive, Jackson, MS 39272
888-994-7636, unifiedbrands.net
Please reference our website for the most
updated product information and specifications.
Installation
Each cavity requires 3/4” NPT natural gas connection, 115
volt electric service for controls and electronic ignition and
dual cold water supply lines (3/4” NH hose connection).
Single free venting drain (2” hose connection) required.
Water Quality
All steam systems are subject to contamination and failure
due to mineral content found in all water supplies. To
minimize service problems, a Groen PureSteem Water
Treatment System is recommended.
Recommended MINIMUM water quality standards are: Total
dissolved solids (TDS) content should have a value of 30-40
parts per million, and the water pH should be 7.0-9.0.
Options/Accessories
Groen PureSteem Water Treatment System
Single cold water connection adaptor
Heat shield kit
48” spray hose
Casters, quick gas disconnects and restraining cable
Origin of Manufacture
Combination steamer-oven shall be designed and manufactured in the United States.
Groen Combination Steamer-Ovens, Page 6
Applications
Baking
Roasting
Oven Braising
Steaming
Poaching
Reconstituting
Wet Roasting
Crusty Baking
Baking Bagels
(Optional)
Slow Cook & Hold Meats
140822C
Revised 08/09
7 [178]
1 7/8 [48]
10 11/16 [271]
12 1/4 [311]
35
[889]
431 5/16
[1116]
45 1/2
[1156]
68 1/4
[1734]
2 3/4 [70]
1 1/2 [38]
8 1/2 [216]
33 1/4 [845]
25 11/16
[652]
1 1/2 [38] MIN
2 5/8 [67] MAX
76 1/2 [1943] MIN
77 5/8 [1972] MAX
27 15/16
[709]
43 15/16
[1116]
6 [152] MINIMUM SIDE CLEARANCE
12" [305] MINIMUM FROM
ANOTHER HEAT SOURCE
6 [152] MINIMUM
SIDE CLEARANCE
2 [51]
2 1/2 [63]
26
[660]
42 3/4
[1086]
40 3/8 [1026]
44 1/2 [1130]
67 11/16 [1719]
38 1/2 [978]
2 3/4 [70]
2
3
1
4
4
1
2
4
1
2
6
ADJUSTABLE BULLE TFEET
HEAT SHIELD KIT
OPTIONAL
TEMP. PROBE
(OPTIONAL)
ACCESS DOOR FOR
GAS VALVE
ELECTRICAL CONNECTION: (2) TWO 1/2" [13 MM] CONDUIT FITTINGS.
POWER CONSUMPTION: 15 AMPS AT120 VAC, 60 HZ NOMINAL, EACH OVEN.
DRAIN CONNECTION: 2" [51 MM] TUBE (DRAIN FREE VENTING) DRAIN BOX
MAY BE MOUNTED FOR RIGHT OR LEFT HAND DISCHARGE (LEFT HAND SHOWN)
GAS MANIFOLD OPERATING PRESSURE
MAX. INPUT BTU/HR PER UNIT
(2) TWO GAS CONNECTIONS: 3/4" [19 MM] NPT
STEAM GENERATOR CLEANING SOLUTION PORT
MINIMUM CLEARANCE REQUIRED
(2) TWO COLD WATER SUPPLY AT 30-60 PSIG
EACH WITH A MINIMUM FLOW RATE OF 1.5 GPM
EACH WITH 3/4" [19 MM] N.H. HOSE CONNECTION
DIMENSIONS IN BRACKETS [ ] ARE MM
6
7
4
5
3
NOTES:
2
1
4.5"WC [1.12KPa]
190,000 [56KW]
NATURAL GAS
10"WC [2.49KPa]
190,000 [56KW]
PROPANE GAS
RECOMMENDED INCOMING
GAS PRESSURE
5"WC [1.25KPa] MIN.
14"WC [3.49KPa] MAX.
NATURAL GAS
12"WC [2.99KPa] MIN.
14"WC [3.49KPa] MAX.
PROPANE GAS
COOK ONLY
(STANDARD PANEL)
COOK TO
PROBE PANEL
(OPTIONAL)
ACCESS DOOR FOR
GAS VALVE
3
Model (2)C/2-20G
P/N 123018 REV A
1055 Mendell Davis Drive, Jackson, MS 39272, 888-994-7636, unifiedbrands.net
© 2009 Unified Brands. All Rights Reserved. DOVER® and the DOVER® Logo are registered
trademarks in the United States [and various other countries] of Unified Brands, a
wholly-owned subsidiary of Dover Corporation.
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