Groen CC40-G Installation Manual

OPERATOR MANUAL

VAPORS AND LIQ

UIDS IN THE VICINITY OF THIS OR ANY

OTHER APPLIANCE

POST IN A PROMINENT LOCATION

GAS. THIS INFORMATION SHALL BE OBTAINED BY

CONSULTING YOUR LOCAL GAS SUPPLIER. AS A MINIMUM,

TURN OFF THE GAS AND

CALL YOUR GAS COMPANY AND

YOUR AUTHORIZED SERVICE AGENT. EVACUATE ALL

PERSONNEL FROM THE AREA.

DAMAGE, INJURY OR DEATH. READ THE INSTALLATION,

MODEL: CC40-G Combo SuperSystem 40™

Combination Steamer-Oven

Roll-in loading Gas heated

OM-CC40-G

THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE

INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS

WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTER ATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY

OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGH LY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.

IMPORTANT — READ FIRST — IMPORTANT

The Groen unit you have purchased has been handcrafted from the finest materials, meticulously inspected, and pretested at our factory to ensure that you receive the best possible product. With reasonable care and periodic maintenance, it will provide years of faithful service.

PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLING OR OPERATING THE EQUIPMENT ! It contains information you will need to properly install, operate, and maintain the equipment.

It is recommended that you establish a timetable for periodic maintenance as outlined in this manual. Space has been provided in the Service Log. Keep it up-to-date and on file with the warranty information.

Please pay special attention to the section on WATER CONDITIONING. Water quality problems are the most common cause of steamer failure and are not covered by provisions of the product warranty.

The warranty on this unit does not extend to:

1. Installation and start-up.

2. Simple adjustments, such as tightening fittings and electrical connections.

3. Malfunction as a result of improper maintenance.

4. Repairs made by anyone other than qualified service personnel as recommended by Groen.

5. Damage caused in shipment or damage as a result of improper use.

6. Normal maintenance as outlined in the operator manual.

7. Damage as a result of excessive moisture in components. DO NOT SPRAY THIS EQUIPMENT WITH WATER OR STEAM.

8. Damage caused by tampering with, removal of, or change of any preset control or safety device.

9. Damage caused by hitting a surface of the unit with a cooking implement or by rubbing or scraping the surface with abrasive materials.

10. Malfunction as a result of sediment and/or lime in the valves or scale build-up in the steam generator.

NOTE: MINIMUM water quality STANDARDS MUST BE MET to insure proper operation. WATER

SOFTENING IS RECOMMENDED if the quality of your water does not meet the following standards. Total dissolved solids (TDS) content should not exceed 30 parts per million, and water pH should be 7.0 or higher.

11. Labor involved in moving other equipment to gain access to the unit. The user must maintain the

accessibility of the unit for service under the warranty.

12. Damage to electronics caused by exposure to excessive heat or improper spacing of unit from other

sources of heat. A minimum of 2" (5 cm) must be maintained between right side (louvered side) and any other equipment. A minimum of 12" (31 cm) must be maintained between the unit and any heat source (braising pan, kettle, etc.).

13. Malfunction or damage to unit due to improper drain connection.

WARNING: USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY

GROEN OR THEIR AUTHORIZED DISTRIBUTOR CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES. SERVICE PERFORMED BY OTHER THAN FACTORY AUTHORIZED PERSONNEL WILL VOID ALL WARRANTIES.

If you have any questions about warranty coverage, operating procedure, or maintenance, contact your area Groen representative or an authorized Groen Service Agency.

Table of Contents

EQUIPMENT DESCRIPTION.........................................................2, 3, 4

WATER CONDITIONING......................................................................5

INSTALLATION........................................................................6, 7, 8, 9

INITIAL START-UP .......................................................................10, 11

OPERATION.................................. 12, 13, 14, 15, 16, 17, 18, 19, 20, 21

CLEANING & MAINTENANCE

CLEANING.....................................................22, 23, 24, 25, 26, 27

MAINTENANCE......................................................................... 28

DIAGRAMS & SCHEMATICS ............................................................ 29

TROUBLESHOOTING........................................................................ 30

TROUBLESHOOTING GUIDE............................................................ 31

REFERENCES.................................................................................. 32

SERVICE LOG .................................................................................. 33

WARRANTY...................................................................................... 34

Gas Combo SuperSystem 40

Transport Cart Pan Rack

Transport Cart With Pan Rack Locked In Place For Loading Etc.

Combo SuperSystem 40 With Cart And Rack In Loading Position

Equipment Description

The Groen Convection Combo™ consists of a stainless steel cooking chamber, an air heating compartment with heat exchange tubes and dual fans, a steam generator, and a control compartment housing electrical components.

All major components of the Convection Combo are encased in a 16 gauge stainless steel cabinet. Glass fiber insulation, 1 to 2 inches (2 to 5 cm) thick, lines the cabinet.

The oven has a double door with two large, tempered glass windows in each door. Oven viewing lights are mounted between the inner and outer doors. Separate hinges allow easy access to the space between the doors for window cleaning and light fixture maintenance. A condensate collection tray at the bottom diverts condensate to the oven drain. An optional solid door is available. The solid door does not provide viewing lights.

All operator controls are on the front panel, with the exception of the pilot ignition switch and main gas shutoff valve, which are located behind the sliding access door on the front side of the unit.

Standard controls permit the Convection Combo to operate in four modes:

1. As a convection oven

2. As a self-contained, pressureless steamer

3. As a combination oven-steamer

4. With or without the meat probe operating

Cooking chamber capacity:

28 Steam table pans (12 x 20 x 2-1/2"), or 20 Bake pans (18 x 26"), or 40 Gastronorm pans (1/1)

All units are supplied on stainless steel legs. Controls and monitoring displays for cooking time, operating mode, and temperature occupy the control

panel. The upper portion of the panel has a digital time readout and touch pads for setting the time. Below the timer section are lights to indicate the status of the unit plus touch pads that select the mode of operation and switch on the power. A digital readout shows the chosen temperature, which is selected with a dial. Status of the pilot burners is indicated by the lights above the pilot ignition switch, located behind the sliding door in the front of the unit.

An insulated, gas fired steam generator is mounted next to the oven. Steam enters the cooking chamber through two connecting tubes at the top and bottom on the right side of the cavity.

The deliming solution is poured through a port just below the front control panel of the unit. Our unique automatic cleaning system transfers de-liming solution to the steam generator.

The air heating space, containing the heat exchanger tubes and fans, is separated from the cooking chamber by removable left, right, top, and bottom partitions.

The compartment containing the automatic controls and other electrical components is on the right-hand side of the unit and is entered by removing the right outside panel or by opening the hinged panel in the front.

A drain is located in the removable bottom of the cooking chamber. Fluids drain from this removable bottom and from the permanent floor to the stainless steel drain pipe outside the oven. This drain pipe includes a spray condenser, which suppresses any steam escaping from the chamber. The drain assembly includes a built in vent with overflow protection.

The roll-in loading and unloading equipment for Combo SuperSystem 40 consists of the Model CCS "Smart Cart" and the separate Model CRS rack. When the rack is engaged with the cart, a hand crank raises the rack for transportation and lowers the rack to position it in the oven. The cart is disengaged from the rack and removed before the oven door is closed. Design of the system allows the rack to be easily held in and transferred between reach-in or walk-in refrigerators and freezers, blast chillers, and holding cabinets.

Natural

Gas at

L.P.

Gas at

Oven Mode 240,000 (70 kw) 240,000 (70 kw)

Steam Mode 280,000 (82 kw) 280,000 (82 kw)

Combo Mode 300,000 (88 kw) 300,000 (88 kw)

Preheat (Max) 520,000(152 kw) 520,000(152 kw)

*Manifold pressure

Equipment Description

BURNER FIRING RATES

Input Rates, BTU/hr

CC40-G

3.5" W.C. (0.9 kPa)*

10" W.C. (2.5 kPa)*

Water Conditioning

It is desirable to supply the steamer with water that will not form scale. Scale formation depends on the hardness of the water and the hours of operation. In a few areas of the United States, the water supply is sufficiently free of minerals to avoid scale formation. However, most water supplies carry heavy loads of minerals, which will form scale and possibly cause premature failure of components.

Your local water utility can provide a statement on the scale forming qualities of the water supply. Water supplied to the boiler should contain not more than 30 parts per million total dissolved solids (TDS) and should have a pH of 7.0 or higher.

Please follow these simple precautions:

1. Do not rely on "water treaters" commonly sold as scale preventers and scale removers. They do not

work. The only proven way to prevent scale build-up is to feed in water practically free of scaleforming minerals.

2. If your water supply carries scale-forming minerals, as most water supplies do, run the water through

a properly maintained softener. Exchangeable softener cartridges or a regeneratable softener can be used. In either case, establish a regular program of exchanging the cartridges or regenerating the softener. Installing a water meter on the inlet line between the softener and the steamer will give an accurate check of water consumption and a way of determining when to change the cartridge or regenerate the softener. By using a softener and operating within the softener's capacity to exchange minerals, the user will optimize performance and minimize maintenance of the steamer.

3. If you notice a slowing of steam production, have your authorized Groen service representative

check the unit for build-up of scale. Heavy scale will reduce the unit's ability to boil water and can cause a fire tube in the steam generator to overheat and burn out.

TO MINIMIZE SCALE PROBLEMS, USE AND PROPERLY MAINTAIN A SOFTENER, AND CLEAN THE STEAMER PERIODICALLY OR AS NEEDED.

Installation

cm) of any

cm) of a heat source, like a

A. Mounting

When the combination oven is received, immediately inspect the unit thoroughly for external and internal damage. Report any damage to the carrier.

WARNING:

To avoid drainage problems, level the unit front-to-rear, or provide a slight pitch to the rear. Maintain a minimum 8-1/2 inch (22 cm) clearance between the cabinet and the floor (Figure 2), to permit proper operation of the cart.

WARNING: THE UNIT MUST BE INSTALLED BY

The CC40-G combination oven is suitable for installation in combustible and noncombustible locations. The flooring in all installations must be of a noncombustible material. The minimum clearances for Installations are:

CAUTION: The CC40-G combination oven The unit must be installed in an adequately ventilated room with a provision for adequate air supply to the

unit. The unit must be completely installed under a ventilation hood, since flue products exit the appliance over its entire depth. All items which may 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 appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 kPa). The appliance 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 1/2 psig (3.45 kPa).

Do not install a unit in these locations:

• Where the right side vents are blocked or within 2 inches (5 combustible material or within 12 inches (31 braising pan, deep fryer, char broiler, or kettle.

• To the left of any open-flame equipment.

• With less than 7 inches (18 cm) of clearance at the rear.

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 ALL APPLICABLE CODES.

Right side 2 inches (5 cm) Left side 0 inches (0 cm) Rear 7 inches (18 cm) Figure 2

requires 24 inches (61 cm) clearance on the right side for proper service.

B. Gas Supply Connection

GAS

TREATED UNTREATED

ELECTRICAL

3" (76

mm) DRAIN

NOTICE: Making any electrical or mechanical change in the unit without prior approval from the Groen

Food Service Engineering Department may void all warranties. Connection to the gas supply can be completed with 1" (2.5 cm) NPT pipe or approved equivalent. Although the immediate connection to the appliance is 1" (2.5 cm) NPT, gas supply piping must be large enough to provide 520,000 BTU/hr (152 kw) for each CC40-G. Supply pressure, measured at the back of the oven, must be at least 6.5" W.C. [1.6 kPa] (maximum 14" W.C. [3.5 kPa]) for natural gas or at least 12" W.C. [3 kPa] (maximum 14" W.C. [3.5 kPa]) 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. 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.

C. Electrical Supply Connection

For the oven provide 115 VAC, 60 HZ, 1 PH, 15 AMP service. Local codes and/or the National Electrical Code should be observed in accordance with ANSI/ NFPA 70-1987 (or latest edition). AN ELECTRICAL GROUND IS REQUIRED. The electrical schematic is located in the service compartment and in this manual. Maximum load per oven is 11 amps. In Canada, provide electrical service in accordance with the Canadian Electrical Code, CSA C22.1 Part 1, and/or local codes.

Convection Combo Utility Connections

NOTE: Remove right side panel and make electrical connection at terminal block in rear of control

compartment.

CONNECTION

1"(25mm)

COLD WATER CONNECTION

CONNECTION

Figure 3

CONNECTION

Installation (cont'd)

D. Water Supply Connection

Two water connections are provided. One supplies water to the steam generator (treated water), and the other is for the condensate spray (untreated water). A back siphonage device (check valve) must be installed in each incoming cold water line according to local plumbing code. The water line pressure should be between 30 and 60 PSIG (210 and 410 kPa). A pressure regulator is required above 60 PSIG (410 kPa). Two 3/4 inch NH (garden hose type) connectors are required to connect the water supply to the water inlet valves. The minimum diameter of each water feed line is 1/2 inch (13 mm). Use a washer (or, if necessary, two washers) in the hose connection. Do not allow the connection to have any leak, regardless of how small.

E. Drain Connection

A hose may be attached to the outlet of the drain by means of a clamp. Use 3" (7.6 cm) ID hose for CC40-G. The hose may be connected directly to an atmospherically vented building drain.

The drain has a 2 inch (5 cm) air vent, which eliminates the need for a free air gap at the connection to the building drain, unless such a gap (Figure 4) is required by local code. Do not block the air vent in any way. Do not attach anything to the vent tube or reduce the size of the vent tube. Do NOT use plastic pipe in the drain line, because the drain must withstand boiling water. Install the drain

line with a constant downward pitch. Do NOT create any water trap (Figure 5) in the line.

Proper Drain Line Connection

Figure 4

Improper Drain Line Connection

BUILDING

DRAIN

Figure 5

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