Lincoln 3255 Installation Manual

Impinger® Conveyor Oven

Series 3200, Models 3240 –3255 –3270

Installation, Operation and Maintenance Manual

Original Instruction

Part Number 20000095 Rev J 5/15

Safety Notices

As you work on Lincoln equipment, be sure to pay close attention to the safety notices in this manual. Disregarding the notices may lead to serious injury and/or damage to the equipment.

Throughout this manual, you will see the following types of safety notices:

DANGER

Text in a Danger box alerts you to an eminent personal injury situation. Be sure to read the Danger statement before proceeding, and work carefully.

Warning



Text in a Warning box alerts you to a potential personal injury situation. Be sure to read the Warning statement before proceeding, and work carefully.

Caution



Text in a Caution box alerts you to a situation in which you could damage the equipment. Be sure to read the Caution statement before proceeding, and work carefully.

Procedural Notices

Warning



Improper installation adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment..

Warning



Authorized Service Representatives are obligated to follow industry standard safety procedures, including, but not limited to, local/national regulations for disconnection / lock out / tag out procedures for all utilities including electric, gas, water and steam.

Warning



This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision concerning use of the appliance by a person responsible for their safety. Do not allow children to play with this appliance.

Warning



This equipment is intended for indoor use only. Do not install or operate this equipment in outdoor areas.

As you work on Lincoln equipment, be sure to read the procedural notices in this manual. These notices supply helpful information which may assist you as you work.

Throughout this manual, you will see the following types of procedural notices:

Important

Text in an Important box provides you with information that may help you perform a procedure more efficiently. Disregarding this information will not cause damage or injury, but it may slow you down as you work.

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing.

Read These Before Proceeding:

DANGER

Do not install or operate equipment that has been misused, abused, neglected, damaged, or altered/ modified from that of original manufactured specifications.

Warning



Do not use electrical appliances or accessories other than those supplied by the manufacturer.

FOR YOUR SAFETY

Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other Appliance.

Warning



Never use a high-pressure water jet for cleaning or hose down or flood interior or exterior of units with water. Do not use power cleaning equipment, steel wool, scrapers or wire brushes on stainless steel or painted surfaces.

Caution



Maintenance and servicing work other than cleaning as described in this manual must be done by authorized service personnel.

NOTE: Proper installation, care and maintenance are essential for maximum performance and trouble-free operation of your equipment. Visit our website www.mtwkitchencare. com for manual updates, translations, or contact information for service agents in your area.

Section 1 General Information

Section 2 Installation

Section 3 Operation

Table of Contents

Standard Features ..............................................................................................................5

Purchaser’s Responsibility .................................................................................................5

Additional Requirements ....................................................................................................................5

Model Number Key ............................................................................................................6

Exterior Dimensions – 3240...............................................................................................7

Exterior Dimensions – 3255...............................................................................................8

Exterior Dimensions – 3270...............................................................................................9

Specifications ...................................................................................................................10

Canopy Ventilation Recommendations ..........................................................................12

Installation Requirements ...............................................................................................13

Gas Code Requirements ...................................................................................................................13

Electrical Code Requirements ......................................................................................................... 13

Spacing Requirements ......................................................................................................................14

Ventilation Requirements.................................................................................................................14

Restraint Requirement – Gas Oven(s) on Casters, U.S. and Australia ................................ 15

Installation ........................................................................................................................15

Unloading ..............................................................................................................................................15

Uncrating ................................................................................................................................................15

Manual Gas Valve Installation .........................................................................................16

Stand and Finger Assembly .............................................................................................16

Installation Checklist .......................................................................................................18

Checklist ................................................................................................................................................. 19

Start-Up Procedures .........................................................................................................19

Smoke Candle Test – Ventilation System Verification ............................................................. 19

Finger Housing Baffle Plate Adjustments ................................................................................... 20

Information on Use of Oven ............................................................................................21

Oven Start-Up Instructions .............................................................................................22

To Turn a Conveyor Off or Back On .................................................................................22

Oven Shut-Down Instructions .........................................................................................22

Section 4 Maintenance

Preventive Maintenance ..................................................................................................23

Daily Cleaning ..................................................................................................................23

Weekly Cleaning ...............................................................................................................24

Section 5 Troubleshooting

Before Calling for Service Checklist ................................................................................27

Thermal Cut-Out Switch for Control Box Components .................................................27

Part Number 20000095 Rev J 5/15 3

Table of Contents (continued)

THIS PAGE INTENTIONALLY LEFT BLANK

4 Part Number 20000095 Rev J 5/15

Section 1

General Information

Standard Features

• Faster bake times improve time of service.

• Advanced Air Impingement Technology enhances bake quality and uniformity.

• Improved product flow during cooking reduces operation costs.

• Research and Applications support for continued operational success.

• New FastBake™ Technology designed to bake up to 35% faster than other conveyor ovens without increased noise levels or loss of product quality!

Purchaser’s Responsibility

It is the responsibility of the purchaser:

1. To see that the gas and electric services for the oven are installed on site in accordance with the manufacturer’s specification.

2. To unload, uncrate, and install the oven in its proper location; in accordance with this installation/operation manual.

3. To see that the gas and electric services are connected properly by a qualified installer of your choice. For installation in the State of Massachusetts: Installation of this oven must be performed by a licensed plumber or gas fitter. All such connections must be in accordance with applicable code requirements. Refer to “Installation Requirements” section for specific information.

4. To arrange for inspection and operation check-out by an Authorized Service Technician as described below:

Do not attempt to operate the oven until connection of utility service has been fully inspected by an Authorized Service Technician or a Lincoln Foodservice Products, LLC Service Representative. This service is required by Lincoln Foodservice Products, LLC in order to assist the purchaser in proper start-up of the oven on site. Please note the specific details on the Warranty and make certain connections are made to proper utility services.

The warranty shall not apply if the oven(s) are started up and operated prior to the utilities and oven being inspected and check-out made by an Authorized Service Technician or a Lincoln Foodservice Products, LLC Service Representative.

ADDITIONAL REQUIREMENTS

• Obtain from your local gas provider and post in a prominent location instructions to be followed in the event gas odors are detected.

• It is required that the oven be placed under a ventilation hood to provide for adequate air supply and ventilation.

• Minimum clearances must be maintained from all walls and combustible materials. See “Spacing Requirements” section for more information.

• Keep the oven free and clear of combustible material.

• Adequate clearance for air openings to the combustion control chamber on the right side of the oven is required.

• Do not obstruct the ventilation holes in the control panels, as these provide the combustion air for the burner and cooling air for the controls.

• The oven is to be operated only on the type of gas and/ or electricity as shown on the specification plate.

• The power burner will not operate and gas will not flow through the burner without electrical power.

• This manual should be retained for future reference.

• The electrical wiring diagram is located under the control box covers.

IN AUSTRALIA: Refer to Standard AS 5601. This standard specifies the requirements for piping, flues, ventilation and appliance installation associated with use of or intended use of fuel gases. The requirements of AS 5601 are to be used in conjunction with, but do not take precedence over, any statutory regulations that may apply in any area.

All ovens require separate service and dedicated neutral.

Gas Pressure Conversion

Inches of Water

Column

3.5

4.5 7

10.5 11 14

14.5

kPa m-Bar

0.87

1.12

1.74

2.48

2.61

2.73

3.48

3.61

8.70

11.2

17.40

24.87

26.11

27.36

34.81

36.05

Millimeters of Water Column

88.9

114.3

177.8

254.0

266.7

279.4

355.6

368.3

Part Number 20000095 Rev J 5/15 5

General Information Section 1

Model Number Key

Example: 3240-000-L-K2300

CUSTOM CONFIGURATION CODE

LANGUAGE/AGENCY CODE

TUNNEL DEPTH

(i.e. General Market or Customer Specific)

32 40 0 0–––0 L K2300

OVEN TUNNEL WIDTH

Code Language Country

0 English Dom. & Int. Default B French CE – France/Luxembourg C German CE – Germany

D Italian CE – Italy

E Spanish CE – Spain

F English CE – UK/India/Africa/Hungary G Spanish Mexico/Latin America H Portuguese CE – Portugal

I Not Used ---

J Danish CE – Denmark K Dutch & French CE – Belgium

L Dutch CE – Netherlands M Greek CE – Greece N Finnish CE – Finland O Restricted --P Norwegian CE – Norway Q English Japan R Swedish CE – Sweden

S English Australia

T Mandarin China U Restricted --V English Pacific Rim/Korea

W English Middle East/Africa

X Not Used --Y Not Used --Z Not Used ---

BELT TYPE 0 = Solid Belt 5 = Split Belt

PANEL SETUP CODE

FUEL TYPE/ELECTRICAL SUPPLY N = Natural

Code Fuel Type

B 400V/230V/3Ph/50Hz D 380V/220V/3Ph/50Hz G 415V/240V/3Ph/50Hz

J 208V/1Ph/60Hz

M 220V/1Ph/60Hz

P 240V/1Ph/60Hz

R 208V/3Ph/60Hz

S 480V/3Ph/60Hz

V 240V/3Ph/60Hz N Natural

L Propane

6 Part Number 20000095 Rev J 5/15

Exterior Dimensions – 3240

77.61" (1971 mm)

26.02"

(661 mm)

17.44"

(443 mm)

11.66"

(296 mm)

40.41" (1026 mm)

Section 2

Installation

17.4"

(442 mm)

23.13"

(588 mm)

37.49"

(952 mm)

77.75"

(1975 mm)

60.34"

(1533 mm)

39.78"

(1010 mm)

19.22"

(488 mm)

61.86"

(1571 mm)

Part Number 20000095 Rev J 5/15 7

Installation Section 2

Exterior Dimensions – 3255

Gas Supply

1/2" NPT

7-1/16"

(179 mm)

13-1/8"

(333 mm)

94"

(2347 mm)

24-1/2"

(622 mm)

55"

(1400 mm)

36"

(914 mm)

(127 mm)

33-3/4"

(857 mm)

47-3/8"

(1203 mm)

1/2" NPT

21-5/8"

(549 mm)

21-1/4"

(540 mm)

(Gas)

59-5/8"

(1515 mm)

43-1/4"

(1098 mm)

21-5/8"

(549 mm)

3-1/4"

(80 mm)

Door Open

10-7/8"

(276 mm)

93-3/4"

(2381 mm)

38-3/4"

(984 mm) Shown with open glass access door

54-3/4"

(1391 mm)

8 Part Number 20000095 Rev J 5/15

Section 2 Installation

Exterior Dimensions – 3270

Control Box

109.7"

(2786 mm)

17.5"

(445 mm)

21.7"

(551 mm)

70"

(1778 mm)

11.2"

(284 mm)

8.8"

(223 mm)

19.9"

(505 mm)

1.5"

(38 mm)

2.8"

(71 mm)

57.4"

(1458 mm)

2.9"

(74 mm)

(152 mm)

5.5"

(140 mm)

106.1"

(2695 mm)

Conveyor

Part Number 20000095 Rev J 5/15 9

Installation Section 2

Specifications

Electrical Service — All Gas Models

Voltage (AC) Phase Hz

Single Oven 120 1 60 6.0 14.0

Double Stack 120 1 60 12.0 28.0

Triple Stack 120 1 60 18.0 42.0

International Ovens

(Single Stack)

230/240 1 50 3.15 7.3

Model 3240/3255

Amps

General Information – 3240 Natural Gas Ovens

Model Energy Power Voltage Current Phase Hz

Single Oven Nat. Gas 115,000 BTU 120 VAC 6 Amps 1 60 Hz 8 – 14" W.C. 1"

Double Stack Nat. Gas 230,000 BTU 120 VAC 12 Amps 1 60 Hz 8 – 14" W.C. 1-1/4"

Triple Stack Nat. Gas 345,000 BTU 120 VAC 18 Amps 1 60 Hz 8 – 14" W.C. 1-1/2"

Single Oven Nat. Gas

G20

Single Oven Nat. Gas

G25

31 kW (HI) 144 MS/hr

3.88 m

/hr

26 kW (HI) 230 VAC 3.15 Amps 1 50 Hz 2.00 - 3.48 kPa 1"

230 VAC 3.15 Amps 1 50 Hz 2.00 - 3.48 kPa 1"

Gas Supply

Pressure

Model 3270

Amps

Gas Pipe Size

(NPT)

General Information – 3240 Propane Gas Ovens

Model Energy Power Voltage Current Phase Hz

Single Oven L.P. Gas 115,000 BTU 120 VAC 6 Amps 1 60 Hz 11.5 – 14" W.C. 3/4"

Double Stack L.P. Gas 230,000 BTU 120 VAC 12 Amps 1 60 Hz 11.5 – 14" W.C. 1"

Triple Stack L.P. Gas 345,000 BTU 120 VAC 18 Amps 1 60 Hz 11.5 – 14" W.C. 1-1/4"

Single Oven L.P. Gas

G30

Single Oven L.P. Gas

G31

37 kW (HI)

2.315 kg/hr 31 kW (HI) 144 MS/hr

1.14 m

/hr

2.545 kg/hr

230 VAC 3.15 Amps 1 50 Hz 2.85 – 3.48 kPa 3/4"

Gas Supply

Pressure

Gas Pipe Size

(NPT)

General Information – 3240 Electric Ovens

Model Energy Power Voltage Current Phase Hz

3240-XXX-B-KXXXX Electric 24kW 400/230 Vac 35 Amps 3 50 Hz 5 Wires, 3 Poles 1N-1G 3240-OXX-R-KXXXX Electric 24kW 120/208 Vac 67 Amps 3 60 Hz 4 Wires, 3 Poles -1G 3240-OXX-V-KXXXX Electric 24kW 120/240 Vac 58 Amps 3 60 Hz 4 Wires, 3 Poles -1G 3240-XXX-D-KXXXX Electric 24kW 380Y/220 Vac 37 Amps 3 50 Hz 5 Wires, 3 Poles 1N-1G 3240-XXX-G-KXXXX Electric 24kW 415Y/240 Vac 34 Amps 3 50 Hz 5 Wires, 3 Poles 1N-1G

Recommended Electrical

Specifications

10 Part Number 20000095 Rev J 5/15

Section 2 Installation

General Information – 3255 Natural Gas Ovens

Model Energy Power Voltage Current Phase Hz

Gas Supply

Pressure

Single Oven Nat. Gas 145,000 BTU 120 VAC 6 Amps 1 60 Hz 8 – 14" W.C. 1"

Double Stack Nat. Gas 290,000 BTU 120 VAC 12 Amps 1 60 Hz 8 – 14" W.C. 1-1/4"

Triple Stack Nat. Gas 435,000 BTU 120 VAC 18 Amps 1 60 Hz 8 – 14" W.C. 1-1/2"

Single Oven Nat. Gas 42.5 kW (HI)

230 VAC 1 50 Hz 2.00 - 3.48 kPa 1"

153 MS/h

4.44 m

/hr

Gas Pipe Size

(NPT)

General Information – 3255 Propane Gas Ovens

Model Energy Power Voltage Current Phase Hz

Gas Supply

Pressure

Single Oven L.P. Gas 145,000 BTU 120 VAC 6 Amps 1 60 Hz 11.5 – 14" W.C. 3/4"

Double Stack L.P. Gas 290,000 BTU 120 VAC 12 Amps 1 60 Hz 11.5 – 14" W.C. 1"

Triple Stack L.P. Gas 435,000 BTU 120 VAC 18 Amps 1 60 Hz 11.5 – 14" W.C. 1-1/4"

Single Oven L.P. Gas

G30

42.5 kW (HI) 153 MS/h

1.30 m

/hr

230 VAC 3.15 Amps 1 50 Hz 2.85 – 3.48 kPa 3/4"

3.208 Ks/hr

Single Oven L.P. Gas

G31

42.5 kW (HI) 153 MS/h

230 VAC 3.15 Amps 1 50 Hz 2.85 – 3.48 kPa 3/4"

2.918 Ks/hr

Gas Pipe Size

(NPT)

General Information – 3270 Natural Gas Ovens

Model Energy Power Voltage Current Phase Hz

Gas Supply

Pressure

Single Oven Nat. Gas 150,000 BTU 120 VAC 14 Amps 1 60 Hz 8 – 14" W.C. 1"

Double Stack Nat. Gas 300,000 BTU 120 VAC 28 Amps 1 60 Hz 8 – 14" W.C. 1-1/4"

Triple Stack Nat. Gas 450,000 BTU 120 VAC 42 Amps 1 60 Hz 8 – 14" W.C. 1-1/2" International (Single Stack)

Nat. Gas 43.9 kW Hi

158.26 MJ

4.59 m

/hr

230/240 VAC 7.3 Amps 1 50 Hz 17.4 mbar

2.00 – 3.48 kPa

Gas Pipe Size

(NPT)

General Information – 3270 Propane Gas Ovens

Model Energy Power Voltage Current Phase Hz

Gas Supply

Pressure

Single Oven L.P. Gas 150,000 BTU 120 VAC 14 Amps 1 60 Hz 11.5 – 14" W.C. 3/4"

Double Stack L.P. Gas 300,000 BTU 120 VAC 28 Amps 1 60 Hz 11.5 – 14" W.C. 1"

Triple Stack L.P. Gas 450,000 BTU 120 VAC 42 Amps 1 60 Hz 11.5 – 14" W.C. 1-1/4" International (Single Stack)

L.P. Gas

G30

43.9 kW Hi

158.26 MJ

1.3 m

/hr

230/240 VAC 7.3 Amps 1 50 Hz 27.4 mbar

2.85 – 3.48 kPa

3.32 kg/hr

Single Stack LP Gas

G31

43.9 kW Hi

158.26 MJ

1.3 m

/hr

230/240 VAC 7.3 Amps 1 50 Hz 27.4 mbar

2.85 – 3.48 kPa

3.01 kg/hr

Gas Pipe Size

(NPT)

3/4"

NOTE: For proper operation, the gas valve requires a nominal inlet pressure of 7 inches H2O column for natural gas and 11 inches of H2O column for L.P. gas, unless otherwise specified. A minimum inlet pressure of 1.0 inch of H2O above the manifold setting (NAT. manifold 3.5" H2O, L.P. manifold 10" H2O) must be maintained with no pressure drop from the no load to full load condition. The maximum inlet pressure must be maintained at or below 1/2 PSIG (14.5 inches H2O column). Refer

to the Gas Pressure Conversion chart in Section 1 for pressure conversions.

Part Number 20000095 Rev J 5/15 11

Installation Section 2

Canopy Ventilation Recommendations

18"-24"

457 mm - 610 mm

Capture Velocity

Capture Area Capture Area

Capture Velocity

Dimension

3240 3255 3270

A 96 in (2438 mm) 108 in (2743 mm) 120 in (3048 mm) 10 ft (3039 mm) B 8 in (203 mm) 8 in (203 mm) 8 in (203 mm) 22 in (559 mm) C 22 in (559 mm) 22 in (559 mm) 22 in (559 mm) 22 in (559 mm) D 80 in (2032 mm) 80 in (2032 mm) 80 in (2032 mm) 6 ft 8 in (2020 mm) E 12 in (305 mm) 12 in (305 mm) 12 in (305 mm) 12 in (304 mm) F 80 in (2032 mm) 80 in (2032 mm) 80 in (2032 mm) 6 ft 6 in AFF (1981 mm)

Exhaust Flow 1400 – 1600 CFM 1600 – 2000 CFM 1800 – 2400 CFM —

Single or Double Stack

Triple Stack *

AFF = Above Finished Floor * Hood dimensions shown are for island mount - Size reductions may be possible for wall mount units.

NOTE: Hood dimensions and the positioning of the hood over the oven will vary with hood manufacturers.

NOTE: Lincoln can provide oven spec sheets that show the dimensions of the oven, kW or BTU ratings and other information that will be useful to both the ventilation hood supplier and the HVAC contractor.

12 Part Number 20000095 Rev J 5/15

Section 2 Installation

Installation Requirements

DANGER

All utility connections and fixtures must be maintained

in accordance with local and national codes.

GAS CODE REQUIREMENTS

DANGER

Conversion of this appliance from one type of gas to

another must only be performed by qualified, licensed,

and authorized installation or service personnel.

Conversion without the proper components may result

in fire or explosion.

Warning



A manual shut-off valve must be installed in the gas

supply (service) line upstream of this appliance and in a

position where it can be reached quickly in the event of

an emergency.

Safe and satisfactory operation of this oven depends to a great extent upon its proper installation, and it should be installed, as applicable in accordance with the National Fuel Gas Codes, ANSI Z223.1/NFPA 54, latest version, manufacturers’ installation instructions and local municipal building codes.

1. The oven and its individual shut off 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).

2. The oven must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply system at test pressures equal to or less than 1/2 psig (3.45 kPa).

IN MASSACHUSETTS: The minimum length of a flexible gas supply hose is thirty-six (36") inches.

IN CANADA: The installation of these appliances is to be in accordance with CSA B.149.1 latest version – Natural Gas and Propane Installation Code – and/or local codes.

IN AUSTRALIA: To be installed in accordance with AS 56012004 and 4563-2004 Gas Installation Code.

NOTE: In the event that verification of pilot flame is needed, a small mirror may be utilized for verification.

ELECTRICAL CODE REQUIREMENTS

Warning



This appliance must be grounded and all field wiring must conform to all applicable local and national codes. Refer to rating plate for proper voltage. It is the responsibility of the end user to provide the disconnect means to satisfy the authority having jurisdiction.

Warning



This equipment must be positioned so that the plug is accessible unless other means for disconnection from the power supply (e.g., circuit breaker or disconnect switch) is provided.

When installed, this appliance must be electrically grounded and its installation must comply with the National Electric Code, ANSI-NFPA 70, latest edition, the manufacturers’ installation instructions, and applicable local municipal building codes.

IN CANADA: All electrical connections are to be made in accordance with CSA C22.2 latest version – Canadian Electrical Code and/or local codes.

ALL OTHER COUNTRIES: Local gas and/or electrical codes will prevail.

1. Strain Relief is provided with each oven. International Dealer/Distributors provide applicable power cord/ plug for each customer.

2. All pole disconnection switch must have 3 mm open contact distance.

3. To prevent electrical shock, an equal potential bonding ground lug is provided in the back. This allows the oven to be connected to an external bonding system.

4. If used as double or triple stack and each oven has its own disconnection switch, all switches should be close together.

If flexible services are provided, they must meet code requirements for such installation.

Part Number 20000095 Rev J 5/15 13

Installation Section 2

SPACING REQUIREMENTS

Warning



To avoid instability the installation area must be capable of supporting the combined weight of the equipment and product. Additionally the equipment must be level side to side and front to back.

The oven must have 6 inches (152 mm) of clearance from combustible surfaces. In case other equipment is located on the right side of oven, a minimum clearance of 24 inches (609 mm) is required from that equipment.

FOR ALL OVENS: A 24-inch (609 mm) clearance at the rear of the oven must be obtainable for service access.

FOR PERMANENTLY INSTALLED OVENS: A permanently installed (unmovable) oven requires a minimum of 13 feet clearance on the right hand side to allow for conveyor removal, cleaning, and servicing.

NOTE: Do not install this (these) oven(s) in any area with an ambient temperature in excess of 95°F/35°C. Doing so will cause damage to the unit.

VENTILATION REQUIREMENTS

A VENT IS REQUIRED: Local codes prevail. These are the “authority having jurisdiction” as stated by the NATIONAL FIRE PROTECTION ASSOCIATION, INC. in NFPA 96 latest edition. In addition, to be in compliance with the NFPA 54 Section 10.3.5.2, this unit must be installed with a ventilation hood interlock that prevents the unit from operating when the ventilation hood is off. For further ventilation information, see below.

Ventilation Guidelines

A ventilation hood is required to remove heat and cooking odors. For gas ovens, a ventilation hood is also required to remove the products of combustion. The hood and HVAC installation must meet local codes to gain approval by the authority having jurisdiction. Requirements may vary throughout the country depending on the location by city, county, and state. Obtain information from the authority having jurisdiction to determine the requirements for your installation. (NOTE: This oven is considered as “Light Duty for Baking” when evaluated for code vent requirements.) Obtain information and review copies of codes or documents that will be used to inspect and approve your installation. Your ventilation hood supplier and HVAC contractor should be contacted to provide guidance. A properly engineered and installed ventilation hood and HVAC system will expedite approval and reduce oven maintenance costs. Proper ventilation is the oven owner’s responsibility.

The ventilation hood must operate in harmony with the building HVAC system. It typically requires between 1600 and 2800 CFM exhaust or more with 70% makeup air. (The “Efficiency” of various hood designs makes it necessary to specify such a wide range of ventilator CFM.) Make up air must be supplied by either a hood design or the HVAC system. This will vary with hoods from various manufacturers.

Caution



Prevent airflow through the cooking tunnel. Air must NOT be directed onto the oven front or at side of cooking area or rear of oven.

Ventilation System

NOTE: These ovens are considered “Light Duty for Baking” when evaluated for code vent requirements.

This information is shown as a guideline for ventilation.

1. Dimensions shown are for ovens without extension shelves. The outside end of the conveyor frame must be a minimum of 8 inches inside the canopy as shown.

2. The capture velocity across the lower edge of the canopy is to be 50 FPM at sides and front.

3. Use filters at rear exhaust area of hood, as shown.

4. At start-up, the CO level must be checked around the oven space under the canopy.

5. This level must be < 10ppm.

6. The ovens are to be centered in the canopy space leftto-right and front-to-back if possible.

7. A 6-inch space at rear of oven is recommended for utilities.

8. Recommend 70% make-up air provided outside of the canopy through perf metal diffusers directed straight down — not at the oven; located at front, sides or both.

9. Room air diffusers must not be directed onto the oven and should be positioned a minimum of 3 feet from the perimeter of the hood to keep them from affecting the oven.

14 Part Number 20000095 Rev J 5/15

Section 2 Installation

RESTRAINT REQUIREMENT  GAS OVENS ON CASTERS, U.S. AND AUSTRALIA

DANGER

Legs or casters must be installed and the legs or casters must be screwed in completely to prevent bending. When casters are installed the mass of this unit will allow it to move uncontrolled on an inclined surface. These units must be tethered/secured to comply with all applicable codes.

• The installation shall be made with a gas connector that complies with the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 latest version, and a quick disconnect device that complies with the Standard for Quick Disconnect Devices for Use With Gas Fuel, ANSI Z21.41 latest version.

IN CANADA: The installation shall be made with gas connectors that comply with Canadian Code CSA 6.16 latest version and quick disconnects complying to Canadian Code CSA 6.9 latest version.

IN AUSTRALIA: To be installed in accordance with AS 5601-2004 and 4563-2004 Gas Installation Code.

• The installation of the restraint must limit the movement of the oven(s) without depending on the connector, the quick disconnect device or its associated piping to limit the oven movement.

• If the restraint must be disconnected during maintenance or cleaning, it must be reconnected after the oven has been returned to its originally installed position.

Procedure

1. Screw lifting eye “B” of cable assembly to hole “A”.

2. Screw eye bolt “C” of cable assembly to stud in wall “D” or floor anchor “E”.

NOTE: Installation point is the same for single or stacked ovens.

Back of Oven

Wall

Stud

Floor

Installation

The instructions that follow are intended as a guide for preparing for the installation of the Impinger® Conveyor Ovens, Series 3240C, 3255 and 3270. First and foremost, each crate should be examined before signing the Bill of Lading to report any visible damage caused by the trucker in transit, and to account for the proper number of crates.

UNLOADING

When the oven arrives it should consist of:

1. A crate containing oven body, conveyor, fingers, crumb pans, and pan stops. (Some models may have the conveyor packed separately.)

2. A package containing the stand and top.

It is recommended that you have a material-handling device available to unload.

DO NOT LIFT EXCESSIVE WEIGHT!

IF THERE IS APPARENT DAMAGE:

UNITED STATES AND CANADA: Arrangements should be made to file a claim against the carrier, as Interstate Commerce Regulations require that the consignee initiate a claim.

ALL SHIPMENTS TO OTHER COUTRIES: Freight terms will be developed and extended on an individual basis.

Proper and secure storage facilities should be arranged for the oven(s). If necessary, protect it from outdoor or damp conditions at all times before installation.

UNCRATING

When you have all the crates unloaded, open the crates and remove the plastic covers. Inspect at once for concealed damage. If anything appears to be damaged, contact the appropriate persons immediately to file a damage claim. After completing this inspection, finish unpacking the oven and all other components. Be sure to remove the cardboard from the plenum shroud. Move all components inside near the area where they will be assembled in the order in which they will be assembled.

THE OVEN WILL CLEAR THROUGH A 30" (762 mm) DOORWAY BY USING THE FOLLOWING PROCEDURE:

1. Remove conveyor; see “Weekly Cleaning” section for instructions. (Some units may have conveyor packed separately.)

2. Remove thumb screws and baffle from the left side of the oven.

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Installation Section 2

3. Place the left side on a four wheel moving dolly and it will clear a 30" (762 mm) doorway. Or oven can remain on skid and be tilted on its back. Then placed on two four-wheel dollies.

Caution



Do not lift the ovens using the control enclosure. Lift from the main oven cavity only. Damage may occur to the controls of the oven if lifted by the control enclosure.

Manual Gas Valve Installation

When installing the gas valve that is supplied with the oven it is our suggestion that an elbow be placed on the oven pipe first. This will allow the flexible hose to be attached in a downward direction, eliminating possible stress to the hose.

Specifications

Body: Stainless Steel Power: Gas and/or Electric DB Level: ≤ 71dba Operating Temperature Range:

300°F - 600°F (149°C - 316°C)

Stand and Finger Assembly

NOTE: 3255 is used for illustration.

1. The stand is a 55" (1397 mm) x 49" (1245 mm) rectangle. Set it in place with a 55" side facing out. This will be the front of the oven. Using a carpenter’s level, level all four (4) sides of the stand. To raise or lower the stand, use the leg adjusters. Ovens on casters require a level floor. NOTE: The oven top is packed with oven stand. Remove top from stand before assembly.

2. Remove the oven from the dolly and set it on the stand. The control panel should be on the right rear as you face the oven. Be sure that the oven sets squarely on the stand and is fully seated. For a single oven, install top. For double, see step 3.

3. If you purchased a double stack oven, place the second oven on top of the first one. Be sure that it sets on squarely and is fully seated. The control panel goes on the right rear. Now install oven top.

4. Before installing the retaining brackets in the oven(s), be sure all of the packing material is removed from the plenum shroud. Install the finger retaining brackets by placing them upside down and hooking the retaining pin as shown.

Notch

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Section 2 Installation

5. Rotate the finger brackets until the notches in the brackets sit on the retaining pins.

Notch

6. Assemble fingers as shown in steps 7 and 8.

Finger

Housing

Finger

Cover

9. Insert assembled finger through door opening starting with lower left. NOTE: The customer MUST tell you what position to place the assembled finger in, for their application.

10. Install finger in the oven by sliding it over the plenum flange and setting the front bracket. BE SURE THAT THE FINGER SITS SQUARELY OVER THE PLENUM FLANGES AND THE HOLES POINT IN THE PROPER DIRECTION. Top fingers point down, bottom fingers point up.

Number Stamped in Panel

7. Insert columnating plate so the step goes under the lip of the finger housing and the plate lies flush with the housing side edge.

8. Install cover by sliding it on the small end.

11. Repeat step 10 until all ten (10) fingers are installed.

Install conveyor and crumb pans before operation. See “Weekling Cleaning” in Section 4 for instructions.

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Installation Section 2

12. Attach Motor Cover as shown with bolts provided. You are now ready for services to be connected.

This should be done by licensed electricians and plumbers. See “Specifications” section and “Installation Requirements” section for more information.

Motor Cover

13. The gas piping manifold kit should be installed as shown.

Installation Checklist

DANGER

Check all wiring connections, including factory terminals, before operation. Connections can become loose during shipment and installation.

Warning



On completion of any installation or service work, test for gas leaks before returning the equipment into service. Never use matches, candles, or any other ignition source to check for leaks. If gas odors are detected, shut off the gas supply to the appliance at the main shut-off valve and immediately contact the local gas company or an authorized service agency for service.

DO NOT ATTEMPT TO OPERATE THE OVEN until connection of utility service and installation has been fully inspected (START-UP CHECKOUT) by an Authorized Service Technician or a Lincoln Foodservice Products, LLC Service Representative. This service is required by Lincoln Foodservice Products, LLC in order to insure the oven(s) is properly installed and in working order. The warranty becomes effective upon verification of proper installation.

The warranty shall not apply if the oven is started up and operated prior to the “START-UP CHECKOUT” being performed by an Authorized Service Technician or a Lincoln Foodservice Products, LLC Service Representative.

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