Nieco Flexi-Chef System 615E User manual

AUTOMATIC
FOODSERVICE
EQUIPMENT
FLEXI-CHEF SYSTEM®
AUTOMATIC ELECTRIC BROILER
MODEL 615E
OPERATING
INSTRUCTIONS
IMPORTANT: RETAIN THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE.
Broiler area must be kept free of combustible materials, and the flow of combustion and ventilation air
must not be obstructed. Operating personnel must not perform any maintenance or repair functions.
Contact your Nieco Authorized Dealer.
TABLE OF CONTENTS
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PARTS AND LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
CLEANING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
CONVEYOR BELT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
TROUBLE SHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
FOR YOUR SAFETY:
Do not store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.

2
INSTALLATION
PRE-INSTALLATION
Uncrate the broiler, and inspect for shipping damage. Contact the factory if there is obvious damage. Remove the
tape securing the machine parts, and install the parts in their proper location. If you find concealed damage to any
part of this unit, contact your freight carrier immediately. The factory warranty does not cover freight damage.
MOUNTING
If the broiler was shipped with a tubular stand, refer to separate tubular stand assembly instructions.
Note: The four legs of the broiler stand are equipped with casters. Always set the brakes on the casters to
prevent the broiler from shifting during operation or cleaning.
HOOD REQUIREMENTS
This appliance must be installed under a ventilation hood of adequate size and capacity (approximately 400 CFM).
The hood should be at least 6" larger in all dimensions than the appliance top, and be 12" to 18" above the top. Do
not obstruct the flow of combustion and ventilation air. An adequate air supply must be available for safe and proper
operation.
Note: See the National Fire Prevention Association booklet on ventilation of cooking equipment. Write to:
NFPA, 470 Atlantic Ave., Boston, MA 02210. Local codes on venting must also be complied with.
CLEARANCE
For proper installation, the minimum clearance from combustible and non-combustible construction is 6" from the
back and 6" from the front of the machine. Keep appliance area free from combustibles.
To facilitate disassembly and service of the unit a minimum of 24" should be allowed on each end of the broiler to
allow the drip trays and reflectors to be removed.
ELECTRICAL CONNECTION
Power requirements are stated on the unit nameplate and must be connected accordingly. Before starting broiler,
tighten all electrical connections in control box.
Note: This appliance must be electrically grounded in accordance with local codes or in the absence of local
codes, the National Electrical Code, ANSI/NFPA No. 70-1990. In Canada, in accordance with the Canadian
Electrical Code CSA 22.1 part 1, or local codes.
WARNING: This appliance should be connected with a five-wire (3 phase, neutral, ground) plug for
your protection against shock hazard. Be sure to plug directly into a properly grounded five-prong
receptacle. Do not cut or remove grounding prong from plug.
Note: This appliance cannot be safely operated in the event of a power failure. No attempt should be made
to operate during a power failure. Disconnect power supply before servicing.
PRE-OPERATION CHECK
Be sure that all parts are installed in the proper location. Refer to OPERATION section for starting procedure. Start
broiler and test for proper operation.

3
CONTROLS AND INDICATORS
MODEL 615E OR 815E
A. 5 Amp fuse D. Digital Speed Controller (2 - 615, 3 - 815)
B. Power On Indicator Light (Red) E. Motor On/Off Switches (White) (2 - 615, 3 - 815)
C. Main Power On/Off Switch (Red)
STARTING PROCEDURE
Before starting broiler, ensure that all parts are installed in the proper location, the plug is properly
inserted in the socket, and the ventilation hood is turned on.
1. Turn on the power to the broiler by pulling out the red On/Off switch (C).
2. Turn on the motor switches (E) and set the cook times on the digital speed controller (D).
SHUTDOWN PROCEDURE
For EMERGENCY Shutdown, turn the Main Power Switch off. (PUSH Red Switch in.)
For planned shutdowns, perform the following procedure:
1. Clear machine of all food products.
2. Turn Main Power Switch off.
3. Turn Motor Switches off.
CAUTION: Always turn machine completely off before unplugging power cord.
CAUTION: Allow machine to cool before removing any parts.
A
B
C
DE

4
PARTS AND LOCATION
MODEL 615E - FEED END VIEW

5
PARTS AND LOCATION
MODEL 615E - FRONT SIDE VIEW

6
CLEANING INSTRUCTIONS
Do not spray anything on or in the control box. Doing so may damage the broiler.
DAILY CLEANING
Clear broiler of all food product before shutting down to clean. Allow broiler to cool before handling
parts.
1. SHEET METAL PARTS. Remove all trays, drip pans, stripper blades, reflectors, and side
panels. Wash with water and an approved multi-use detergent.
2. SHAFTS. Scrape clean the drive shafts with the special tool provided if necessary.
WEEKLY CLEANING
1. Clean the frame of the broiler as necessary to remove grease build up.
MAINTENANCE
The 615E has very few regular maintenance items. With proper care the broiler will provide many
years of reliable service.
•Handle sheet metal parts carefully to avoid dents and breakage.
•Salts and marinades can corrode the belts and reflectors. If possible, salt food after
removing it from the broiler.
•If you have to replace any of the elements, make sure you order elements that are rated
for the supply voltage to the machine. Rotating the elements periodically will increase
their life.
•The motors contain carbon brushes which will eventually need to be replaced. If you
notice that your motor is running loud, occasionally tripping the breaker switch, or causing
the conveyor to move erratically, replace the motor brushes. Contact your Nieco
Authorized Distributor for replacement brushes.

7
CONVEYOR BELT REMOVAL
1. Run the conveyor belt
until the master link is
located near the drive shaft.
(The master link has a
shorter knuckle, to allow
it to be uncoupled easily.)
2. Lift the shaft up and slide
the teflon bearing block out.
3. Unhook the belt at the
master link.
CONVEYOR BELT
MASTER LINK
FEED END
DIRECTION
BELT

8
WIRING DIAGRAM

9
TROUBLE SHOOTING GUIDE
Identify the problem in the left column, and look for probable causes and solutions in the right hand columns. Probable
causes are listed in “most likely to happen”order. This sequence should be used to isolate the problem. Once the cause
is found, refer to OPERATION and PARTS AND LOCATION sections for explanation of function or repair part needed.
Wiring diagram is located inside electrical control box cover.
PROBLEM PROBABLE CAUSE SOLUTION
1. All elements go out or fail
to heat up.
2. Some elements are on,
but others refuse to heat.
3. Elements appear hotter or
colder than usual.
5. Conveyor belts won’t
advance.
6. Motor control switch
trips.
7. Conveyor speeds are
erratic.
8. Broiled product over or
under cooked.
1. Unit not plugged in properly.
2. Breaker switch on wall panel tripped.
3. Broiler circuit breaker tripped.
4. Broiler on/off switch defective.
5. Main contactor not closing.
6. Main contactor not staying closed.
7. Fuse Blown.
1. Defective element.
2. Circuit breaker tripped.
3. Loose or broken wire.
1. Supply voltage is different than the ele-
ment ratings.
1. Conveyor belt jammed.
2. Machine not plugged in properly.
3. Wall circuit breaker tripped.
4. Motor control switch off.
5. Motor speed dial turned to zero.
6. SCR unplugged or defective.
7. Drive chain broken.
8. Drive sprocket loose.
9. Gear motor defective.
10. Speed pot defective.
11. Loose or broken wire.
12. Motor unplugged.
13. Fuse Blown.
1. Conveyor chains jammed.
2. SCR defective.
3. Motor brushes worn out.
4. Drive chain binding.
5. Shorted wire to motor.
6. Motor defective.
7. Switch defective.
1. Digital Speed Controller defective.
2. Drive chain binding.
3. Gear motor defective.
4. Loose drive sprockets.
1. Wrong conveyor belt speed.
2. Incorrect elements installed.
1. Plug in properly.
2. Reset circuit breaker.
3. Reset circuit breaker.
4. Replace.
5. Replace contactor coil.
6. Replace on/off switch and check for
loose wires.
7. Replace.
1. Replace.
2. Reset.
3. Check all wires. Tighten or replace.
1. Correct supply voltage or install ele-
ments that are rated for the supply volt-
age.
1. Remove jam. Reset motor switch.
2. Plug in properly.
3. Reset circuit breaker.
4. Turn on.
5. Increase setting.
6. Plug in or replace.
7. Repair or replace.
8 Tighten set screw on the sprocket.
9. Replace.
10. Replace.
11. Check all wires. Tighten or replace.
12. Plug in. Check for grease or dirt in the
socket.
13. Replace.
1. Remove jam. Reset motor switch.
2. Replace.
3. Replace.
4. Adjust chain tension. Lubricate.
5. Repair wire.
6. Replace.
7. Replace.
1. Replace.
2. Adjust chain tension. Lubricate.
3. Replace.
4. Tighten set screws on sprocket.
1. Adjust motor speed.
2. Match the voltage rating of the elements
to the supply voltage.

10
PROBLEM PROBABLE CAUSE SOLUTION
9. Broiled product sticks to
conveyor belt.
10. Inconsistent broil.
11. Broiler frame or parts
warping.
1. Stripper blades not adjusted or installed
properly.
2. Product under broiled.
3. Elements too cool.
4. Heat reflectors not installed or installed
improperly.
1. Conveyor speed erratic.
2. Incoming product temperature erratic.
3. Air condition vent blowing on broiler.
4. Erratic voltage supply.
5. Supply voltage incorrect.
1. Elements too hot.
1. Adjust or install properly.
2. Decrease motor speed.
3. Check elements.
4. Refer to Parts & Location section for
proper placement of reflectors.
1. See #7 above.
2. Check freezers for proper operation.
3. Redirect air away from broiler.
4. Check supply. Contact electric company
if there are problems.
5. Match the supply voltage with the ele-
ment ratings.
1. Match supply voltage to element rating
plate on the broiler.

11
SPECIFICATIONS

Nieco Corporation •7950 Cameron Drive •Windsor, CA 95492 •707.284.7100 Office •707.284.7430 Fax
8/94 •www.nieco.com •[email protected] •Printed in the USA