Nieco 550G Installation Manual

AUTOMATIC

FOOD SERVICE

EQUIPMENT

AUTOMATIC GAS BROILER

MODEL N524/550G

OWNERS MANUAL

IMPORTANT: RETAIN THIS MANUAL IN ASAFE PLACE

FOR FUTURE REFERENCE.

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: Improper installation, adjustment, alteration, maintenance

can cause property damage, injury, or death. Read the installation,

operating and maintenance instructions thoroughly before installing

or servicing this equipment.

le materials, and the flow of combustion and ventilation air

Broiler area m
must not be obstructed. Operating personnel must not perform any maintenance or repair functions.
Contact your Nieco Authorized Dealer.

In a prominent location, post instructions to be followed in the event the user smells gas.This informa­tion shall be obtained by consulting your local gas supplier.

ust be kept free of comb

ustib

TABLE OF CONTENTS

A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

A.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

A.2 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

A.3 Service/Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

A.4 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

B. Machine Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.1 Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.3 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.4 Hood Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.5 Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B.6 Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

B.7 Flexible Gas Line Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

B.8 Restraining Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B.9 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

B.10Pre-Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

8

C. Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

D. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

D.1 Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

D.2 Step-by-Step Lighting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .12

D.3 Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

D.4 Control Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

E. Assembly/Disassembly and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

F. Broil Chain Tension & Link Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

G. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

H. Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

I. Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

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Nieco Corporation - Model N524/550

A. GENERAL INFORMATION

A.1 Description

The Nieco®Model N524/550 automatic broiler, utilizes high release convection
burners, a new, simplified ignition system, easy cleaning and a state-of-the-art
computer control to help eliminate broiling problems and provide the operator
with even greater control over the broiling environment. The N524/550 is avail­able as a return-flow or flow-through. The N524 is a single belt model, while the
N550 is a split belt model.

This manual provides the safety, installation and operating procedures for the
Nieco Automatic Broiler Model N524/550. We recommend that all information
contained in this manual be read prior to installing and operating the broiler.

A.2 Warranty Information

Please read the full text of the limited Warranty in this manual.
If the unit arrives damaged, contact the carrier immediately and file a damage claim with them. Save all

packing materials when filing a claim. Freight damage claims are the responsibility of the purchaser and
ARE NOT covered under warranty.

The warranty does not extend to:

• Damages caused in shipment or damage as a result of improper use.

• Installation of electrical service.

• Normal maintenance as outlined in this manual.

• Malfunction resulting from improper maintenance not in accordance with the steps contained in
this manual and any applicable training.

• Damage caused by abuse or careless handling outside of the normal operating procedures
contained in this manual.

• Damage from moisture into electrical components.

• Damage from tampering with or removal of any safety device.

IMPORTANT!

Keep these instructions for future reference. If the unit changes ownership,

be sure this manual accompanies the equipment.

The Nieco Corporation reser

visions do not entitle the b

h re

Suc

.

notice

additions or replacements for previously purchased equipment.

IMPORTANT

ves the right to c

hange specifications and product design without

er to corresponding changes, improvements,

uy

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Nieco Corporation - Model N524/550

A.3 Service/Technical Assistance

If you experience any problems with the installation or operation of your broiler, contact your local
Authorized Nieco Distributor.

ill in the information bellow and have it handy when calling your authorized service agency for assistance.

F
The serial number is on the broiler rating plate on the side of the unit.

Purchased from:
Date of Purchase:
Model No.:

Serial No.:
For the name of your local Authorized Nieco Distributor, please call [phone].
Use only genuine Nieco replacement parts in your broiler. Use of replacement parts other than those sup-

plied by Authorized Nieco Distributors and Service Agencies will void the warranty and may significantly
alter the performance of your broiler. Your local Authorized Nieco Distributor and Service Agent has been
factory trained and has a complete supply of parts for your Nieco Automatic Broiler.

You may contact the factory direct at [phone] if you have trouble locating your local Nieco
Distributor.

A.4 Important Safety Information

Throughout this manual, you will find the following safety words and symbols that signify important safety
issues with regards to operating or maintaining the equipment:

WARNING

GENERAL W
information important to the proper
operation of the equipment. Failure
to obser
the equipment and/or severe bodily
injury or death.

ARNING. Indicates

y result in damage to

ve ma

CAUTION

GENERAL CAUTION. Indicates
information important to the proper
operation of the equipment. Failure
to observe may result in damage to
the equipment.

ELECTRICAL W
information relating to possible
shock hazard. Failure to observe

y result in dama

ma
ment and/or severe bodily injury or
death.

HOT SURFACE WARNING. Indicates
information impor
dling of equipment and parts.
Failure to observe caution could
result in personal injury.

WARNING

ARNING. Indicates

ge to the equip-

WARNING

tant to the han

-

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Nieco Corporation - Model N524/550

A.4 Important Safety Information (Cont.)

In addition to the warnings and cautions in this manual, use the following guidelines for safe operation of
your Nieco Automatic Broiler:

Read and follow all instructions before using this equipment.

•

• Install or locate broiler only for its intended use as described in this manual.
Do not operate this equipment if it has a damaged cord or plug, if it is not working properly or if it

•
has been otherwise damaged.

• This equipment should only be serviced by authorized personnel. Contact your local Nieco
Distributor for adjustment or repair.

• Use only genuine Nieco replacement parts for your broiler. Failure to do so will void the warranty
and may significantly alter the performance of your broiler.

The following warnings and cautions appear throughout the manual and should be carefully
observed:

• Turn the broiler off, close the main gas valve, and disconnect the plug before
performing any service, maintenance or cleaning on the broiler.

• Always allow the broiler to fully cool before performing any service, maintenance or
cleaning. Failure to wait for the broiler to cool fully may result in personal injury.

• The procedures in this manual may include reference to the use of chemical products.The
Nieco Corporation does not endorse the use of any particular cleaning/degreasing agent.
Use only those chemicals that are approved for use in your kitchen.

• The broiler should be grounded according to local electrical codes to prevent the
possibility of electrical shock. It requires a grounded receptacle with separate electrical
lines, protected by fuses or circuit breakers of the proper rating.

• All electrical connections must be in accordance with local electrical codes and any other
applicable codes.

• The use of adequate ventilation (as rated in this manual) with this broiler is mandatory.
Failure to adequately ventilate this unit and provide safe operating distances (as specified
in this manual) is a fire safety hazard. Follow the instructions for emergency broiler
shutdown in the event of an emergency.

• No attempt should be made to operate this appliance in the event of a power failure.

WARNING ELECTRICAL SHOCK HAZARD. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS INJURY OR DEATH:

_

Electrical ground is required on this appliance.

_

Check with a qualified electrician if you are in doubt as to whether the appliance is properly
grounded.

_

Do not use water on or near the control box located on the underside of the broiler for risk
of serious injury or death due to electrical shock.

WARNING, HIGH TEMPERATURES WITH HOT SURFACES. FAILURE TO FOLLOW THESE PROCE­DURES COULD RESULT IN SERIOUS INJURY:

_

Do not attempt to clean, disassemble or perform maintenance on this broiler until it is fully
cooled as per the instructions contained in this manual.

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Nieco Corporation - Model N524/550

B. INSTALLATION

B.1 Pre-Installation

Uncrate the broiler and inspect for shipping damage. Remove the tape securing the machine parts, and

nstall the parts in their proper location. Refer to the Parts and Location section of this manual. If there

i

re obvious or concealed damages to any part of the broiler, please contact your freight carrier. The fac-

a
tory warranty does not cover freight damage.

B.2 Mounting

B.2.1 Remove all parts from the broiler.
B.2.2 Lift broiler onto stand. NOTE: The cross bar on the base of the stand should be on the

discharge (back side) end of the broiler.
B.2.3 Use the supplied nuts and bolts to bolt the frame of the broiler to the stand.
B..2.4 Follow the steps outlined in the manual to reassemble the broiler.

B.3 Leveling

The grease drain system is based on a gravity-flow design. Therefore, it is extremely important to level
the broiler during installation.

B.4 Hood Requirements

This appliance must be installed under a ventilation hood of adequate size and the following minimum
capacity:

Model SCFM

N524/550 600

Do not obstruct the flow of combustion and ventilation air. An adequate air supply must be available for
safe and proper operation.

B.5 Clearance

For proper installation the minimum required clearance from combustible construction and walls is 12”
(305 mm) from all sides of the broilers. The minimum required clearance from non-combustible con­struction and walls is 0” (0 mm) from all sides of the broiler. Keep appliance area free from com­bustibles. Check with local authorities (building and fire) for standards and requirements for wall and
floor construction to comply with your local codes.

REQUIRED AND RECOMMENDED CLEARANCES

Back of broiler

Sides of broiler

Front of broiler
(Feed end)

REQUIRED for
installation near
combustible walls
and construction

12” (305 mm)

12” (305 mm)

12” (305 mm)

REQUIRED for installa­tion near non-com­bustible walls and
construction

0” (0 mm)

0” (0 mm)

0” (0 mm)

RECOMMENDED by
Nieco for proper disas­sembly and service

12” (305 mm)

12” (305 mm)

24” (610 mm)

CAUTION

SEVERE FIRE HAZARD. Follow local fire and building codes for non-combustible construc­tion. Failure to do so could result in a fire hazard. If unsure of your construction, follow mini­mum clearances for combustible construction.

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Nieco Corporation - Model N524/550

B.6 Gas Connection- 3/4” N.P.T.

At rated input the gas supply should deliver a minimum pressure of at least 15 mbar (5" water column)
at the broiler connection for natural gas. Incoming gas supply pressure must not exceed 50 mbar (14"
water column).

ote:The installation of this appliance must conform with local codes, or in the absence of local codes,

N

with the National Fuel Gas Code, ANSI Z223.1, Natural Gas Installation Code, CAN/CGA-B149.1 includ-

ng:

i

1. 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 psi (3.45 kPa).

2. 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 psi (3.45 kPa).
By public initiative, the State of California has adopted legislation (Proposition 65) which

requires manufacturers of many types of products, including gas appliances, to warn consumers
of their products that contain chemicals or produce substances listed by the State of California
to either cause cancer, birth defects or other reproductive harm.

WARNING

If not installed, operated and maintained in accordance with the manufacturers instructions, this
product could expose you to substances in fuel or from fuel combustion which can cause cancer,
birth defects or other reproductive harm.

B.7 Installing Gas Appliance Connectors and Flexible Gas Lines Correctly

For safety in the kitchen area, and to insure maximum service life, it is vitally important to correctly install
connectors. The connector shall comply with the Standard for Connectors for Moveable Gas Appliances,
ANSI Z21.69 or CAN/CGA-6.16 and a quick disconnect device that complies with the Standard for Quick­Disconnect Devices for use with gas fuel, ANSI Z21.41 or CAN1-6.9

In order to avoid sharp kinks or excessive bends that could have a damaging effect on the connector
may be necessary to attach pipe elbows in order to bring the connector into its proper plane. For easy
movement of the appliance, the connector should be installed with a "lazy" loop for minimum tension.

Note: Gas appliances should be disconnected prior to maximum movement. (Minimal movement is
possible to connect hose.)

N524/550 Equipment Side Gas

N524/550

Manual

Gas Valve

Connection

, it

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Nieco Corporation - Model N524/550

B.8 Restraining Device Installation and Use

This high strength restrainer is to be used with all moveable (castered) appliances. It fully complies with
American Gas Association requirements. References: Z21.69, Z83.11, and Z21.41 with current revisions.

nstallation is quick and positive. In Canada, device is in accordance with CAN 1-6.9-M70 Quick

I
Disconnect Devices for use with gas fuel, and CAN 1-6.10-88 metal connectors for gas appliances.
Correct length for any appliance is simply a matter of loosening two adjuster clips (1) and re-tightening.
(3" to 6" shorter than appliance connector is desired length.)
Restrainer is made of heavy duty steel cable, with a strong scissor hood (2) at one end, and an equally
strong spring hook (3) at the other. Cotter pin (4) is supplied to secure the installation. For proper attach­ment to the broiler, use the supplied hardware to attach the device to the holes in the shear plate of the
broiler stand.

NOTE: If disconnection of the restraint is necessary, reconnect the restraint after the appliance
has been returned to its originally installed position.

B.9 Electrical Connection

Power requirements are stated on the unit nameplate and must be connected accordingly. This appli­ance, when installed must be electrically grounded in accordance with local codes, or in the absence of
local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA
C22.2, as applicable. Before starting broiler, tighten all electrical connections in control box. An electrical
wiring diagram can be found inside the control box.

Note: Disconnect power before servicing.

B.10 Pre-Operation Check

Be sure that all parts are installed in the proper location:

entilation is turned on

o V
o Broiler is plugged in
o Gas line is connected

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Nieco Corporation - Model N524/550

C. TROUBLESHOOTING

lways verify that the broiler is properly assembled, the hood is on, gas valve open and broiler is plugged in.

A

Problem Solution

Pilots not lighting

Burners not
lighting

Pilot not staying lit

Broil chain jams

o Check that broiler is plugged in, gas valve is

open and broiler is turned on

o Manually light
o Check for ignition
o Check for clogged pilot

o Check for gas pressure, if there is pressure,

use the manual lighting procedure

o If no gas pressure, call for service
o Check for proper burner installation
o Check for plugged burner orifices
o Check for plugged pilot burner

o Call for service as thermocouple may need

replacing

o Check:

For sag in the chain (Chain may need a

__

link removed)

__ For an obstruction

Product not cooking to
proper temperature in
cookouts

o Adjust cook time
o Check that broiler is calibrated properly
o Check that all burners are lit
o Check that all parts are installed correctly,

and that lower burner holes are facing up

o Check that broiler is properly cleaned

and assembled

o Check ventilation

__ Make sure there isn’t excessive

exhaust or an air vent blowing on the
broiler

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Nieco Corporation - Model N524/550

Problem Solution

Meat patties not
returning

Too much smoke/heat
in the kitchen

Grease on floor from
discharge end

o Check that patties have not gotten stuck on

the return slide
__ Remove awnings to check
__ Remove product from return slide if

necessary

__ Proper cleaning of return slide is

needed daily to remove buildup which
can cause patties to stick

o Check that hood and fan are working

correctly

o Check that broiler is properly positioned

under the hood; check all sides of broiler

o Check condition of catalyst (after broiler is

turned off and cooled at end of night) clean if
necessary

o Check condition and placement of grease

extractors; clean daily and position properly

o Check that grease box is installed

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Nieco Corporation - Model N524/550