TurboChef C3/AB, C3/C, C3Multi, C3/CMulti General Manual

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C3/AB, C3/C, C3Multi, C3/CMulti

CONVECTION MICROWAVE OVEN

SERVICE AND REPAIR MANUAL

TURBOCHEF TECHNOLOGIES INC.

www.turbochef.com

10500 Metric Drive, Suite 128, Dallas, Texas 75243 USA

PN TC3-0215 10/4/01

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Table of Contents

READ THIS FIRST …………………………………………………………………………… i Important Safety Instructions ……………………………………………………………….. ii Precautions to Avoid Possible Exposure to Excessive Microwave Energy ……………. iii Precautions to be Observed Before and During

Servicing to Avoid Possible Exposure to Excessive Microwave Energy ………………. iv Grounding Instructions ………………………………………………………………………. v Power Cord Replacement …………………………………………………………………… v RF Interference Considerations …………………………………………………………….. vi

Section 1 Installation Specs

Oven Description …………………………………………………………………. 1-2 Installation ………………………………………………………………………… 1-2

Section 2 Cleaning & Operating

Basic Cleaning Procedures ……………………………………………………… 2-2 Glossary of Common Operating Terms & Error Messages …………………. 2-3 Operational Flow Chart ………………………………………………………….. 2-4 Programming Flow Chart ………………………………………………………… 2-6

Section 3 Test

Test Function Quick Reference ………………………………………………… 3-2 Test Function Detailed Description …………………………………………….. 3-3

Section 4 Electrical Compartment

Key Sequence of Operation - Failure Mode Analysis ………………………… 4-2 Electrical Component Locations C3/AB and C3/C 4-3 Electrical Component Locations C3/Multi and C3/CMulti 4-4 Electrical Component Description with Voltage Information ………………… 4-5 Electrical Component Parts Lists 4-7 Control Panel Detail 4-9 Door Switches and Circuit Breakers 4-10 Door Switch Adjustment 4-11 Door Removal and Replacement ………………………………………………. 4-17 Door Removal and Replacement Left Side Parts List 4-19 Door Removal and Replacement Right Side Parts List 4-22 C3/C AND C3/CMULTI Door Assy and Parts List 4-24 C3/AB and C3MULTI Door Assy and Parts List 4-27 C3/AB Schematic ………………………………………………………………….. 4-29 C3/C Schematic 4-30 C3Multi Schematic 4-31

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TurboChef Technologies, Inc. C3/AB & C3

Section 5 Convection Circuit

Catalytic Converter ………………………………………………………………. 5-2 Convection Element and Thermocouples ……………………………………… 5-3 Convection Circuit Parts List 5-7 Convection (Blower) Motor Operation …………………………………………. 5-8 Blower Motor Controller Fault Codes & Troubleshooting ……………………. 5-9 Convection Motor Parts List 5-11

Section 6 Microwave Circuit

Measuring for Microwave Radiation Leakage ………………………………… 6-2 Magnetron Circuit ………………………………………………………………… 6-3 Magnetron Testing ……………………………………………………………….. 6-4 Magnetron Removal and Replacement ………………………………………… 6-4 Component Testing ……………………………………………………………… 6-5 Transformer Specifications ……………………………………………………… 6-6 Control Circuit Board Replacement …………………………………………….. 6-7 Waveguide Components Parts List 6-8

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READ THIS FIRST

Before working on the TurboChef Technologies, Inc. C Series oven you must first read the safety instructions on the following pages. The C3 series oven is a combination convection/microwave oven. While servicing this oven, an RF meter must be used at all times to check for microwave leakage. This RF reading must be recorded on your work invoice.

Very often poor cleaning will result in microwave leakage. Please refer to chapter 2, Cleaning & Operation, for information on the proper cleaning procedures.

Before removing the metal skin to access the electrical components in this oven, the power must be shut off and the oven unplugged. Wait at least one full minute before removing the oven skin so that the magnetron circuit can self–discharge. FAILURE TO DO SO MAY RESULT IN DEATH OR SERIOUS

INJURY. PLEASE NOTE: THIS MANUAL ONLY COVERS C3/AB OVENS PRODUCED BY THE BLODGETT

OVEN CORPORATION, C3MULTI OVENS PRODUCED TURBOCHEF, C3/C AND C3/CMULTI OVENS PRODUCED BY TURBOCHEF TECHNOLOGIES IN CHINA.

This manual is divided into seven (6) chapters as follows:

1. INSTALLATION SPECS - This chapter includes oven specifications and the parameters for proper installation.

2. CLEANING & OPERATION - Improper cleaning can and will affect the operation of this oven. This chapter includes a brief description of the cleaning and operation procedures of the oven and the procedures to edit or change a cooking program.

3. TEST - This chapter details the Test Mode, which allows the technician to operate individual components or section of the C3 SERIES oven.

Using this feature will isolate most electrical troubleshooting problems.

4. ELECTRICAL COMPARTMENT - This chapter identifies the electrical compartment components and provides voltage information. Use the key to help isolate electrical

troubleshooting problems.

5. CONVECTION CIRCUIT - This chapter provided information on the convection and blower motor speed control. Removal and cleaning of the catalytic converter are also provided.

6. MICROWAVE CIRCUIT - This chapter includes information on the microwave circuit and stirrer motor.

This Service and Repair manual is set up for use by qualified technicians only. If you are unfamiliar with this oven, call TurboChef Technologies Inc.

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IMPORTANT SAFETY INSTRUCTIONS

WHEN USING ELECTRICAL APPLIANCES, THE FOLLOWING

BASIC SAFETY PRECAUTIONS SHOULD BE STRICTLY ADHERED TO:

WARNING!!

To reduce the risk of burns, electric shock, fire, injury to persons or exposure to excessive microwave energy:

1. Read all instructions before using the appliance.

2. Read and follow the specific PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY found on pages iii & iv.

3. This appliance must be grounded. Connect only to properly grounded outlet. See GROUNDING INSTRUCTIONS found on page v.

4. Install or locate this appliance only in accordance with the provided installation instructions.

5. Some products such as whole eggs and sealed containers - for example, closed glass jars - may explode and SHOULD NOT be heated in this oven.

6. Use this appliance only for its intended use as described in the manual. DO NOT use corrosive chemicals or vapors in this appliance. This type of oven is specifically designed to heat, cook, or dry food. It is NOT designed for industrial or laboratory use.

7. Children SHOULD NOT use this appliance.

8. DO NOT operate this appliance if it has a damaged cord or plug, if it is not working properly, or if it has been damaged or dropped. See POWER SUPPLY CORD REPLACEMENT found on page v.

9. This appliance should be serviced only by qualified service personnel. Contact the nearest authorized service facility for examination, repair or adjustment.

10. DO NOT cover or block any openings on the appliance.

11. DO NOT store this appliance outdoors. DO NOT use this product near water - for example, near a kitchen sink, in a wet basement, or near a swimming pool.

12. DO NOT immerse cord or plug in water.

13. Keep cord away; from heated surfaces.

14. DO NOT let cord hang over edge of table or counter.

15. DO NOT use a water jet for cleaning.

16. See the Maintenance section of this manual.

17. To reduce the risk of fire in the oven cavity: a) DO NOT overcook food. Carefully attend appliance if paper, plastic, or other combustible materials

are placed inside the oven to facilitate cooking. b) Remove wire twist-ties from paper or plastic bag in oven. c) If materials inside the oven should ignite, keep oven door closed, turn oven off, and disconnect the

power cord, or shut off power at the fuse or circuit breaker panel. d) DO NOT use the cavity for storage purposes. DO NOT leave paper products, cooking utensils, or

food in the cavity when not in use.

SAVE THESE INSTRUCTIONS

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PRECAUTIONS TO AVOID POSSIBLE

EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

1. DO NOT attempt to operate this oven with the door open since open-door operation can result in harmful exposure to microwave energy. It is important not to defeat or tamper with the safety interlocks.

2. DO NOT place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on the sealing surfaces.

3. DO NOT operate the oven if it is damaged. It is particularly important that the oven door close properly and that there is no damage to the:

a) Door (bent). b) Hinges and latches (broken or loosened). c) Door seals and sealing surfaces.

4. The oven SHOULD NOT be adjusted or repaired by anyone except properly qualified service personnel.

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iii

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PRECAUTIONS TO BE OBSERVED BEFORE

AND DURING

SERVICING TO AVOID POSSIBLE EXPOSURE

TO EXCESSIVE MICROWAVE ENERGY

1. DO NOT operate or allow the oven to be operated with the door open.

2. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:

a) Interlock operation. b) Proper door closing. c) Seal and sealing surfaces (arcing, wear, and other damage). d) Damage to or loosening of hinges and latches. e) Evidence of dropping or abuse.

3. Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide, or transmission line, and cavity for proper alignment, integrity, and connection.

4. If the oven is operative prior to servicing, a microwave emission check should be performed prior to servicing the oven. Refer to page 6-2 of this manual for microwave leakage testing procedure.

5. Any defective or mis–aligned components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.

6. A microwave leakage check to verify compliance with the Federal Performance Standard MUST BE performed on each oven prior to release to the owner. Refer to page 6-2 of this manual for microwave leakage testing procedure.

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GROUNDING INSTRUCTIONS

This appliance MUST BE grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This appliance is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded.

WARNING!!

Improper use of the grounding can result in a risk of electric shock.

Consult a qualified electrician or serviceman if the grounding instructions are not completely understood, or if doubt exists as to whether the appliance is properly grounded.

DO NOT use an extension cord. If the power supply cord is too short, have a qualified electrician or serviceman install an outlet near the appliance.

POWER SUPPLY CORD REPLACEMENT

If the power supply cord is damaged, it MUST BE replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.

General Note about Construction

Please be advised that the TurboChef C3 series ovens are manufactured in various locations, as such the C3/C and C3/Cmulit are constructed using the Metric System. Therefore, it is very important to note the model number of the unit you are servicing to ensure you get the correct Metric component. Care has been given in this manual to list the different part numbers for the Metric and Imperial (C3/AB and C3Multi) ovens. In addition, please note that most hardware on the C3/C and C3/Cmulti oven is metric unless otherwise specified.

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RF INTERFERENCE CONSIDERATIONS

This oven generates radio frequency signals. This device has been tested and determined to be in compliance with applicable part of FCC part 18 requirements and to the protection requirements of Council Directive 89/336/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility at the time of manufacture. However, some other equipment may exhibit sensitivity to signals below these limits resulting in interference with that equipment.

If your equipment experiences interference, the following steps should be considered:

1. Increase the physical separation between this oven and the sensitive equipment.

2. If the sensitive device can be grounded, do so following accepted grounding practices.

3. If battery powered microphones are being affected, insure that the batteries are fully charged.

4. Keep sensitive equipment on electrically separate circuits, if possible.

5. DO NOT route intercom wires, microphone wires, or speaker cables near oven.

SAVE THESE INSTRUCTIONS

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) All Models

The outlet box, receptacle, and wall plate are to be furnished by

TurboChef Technologies, Inc. C series

OVEN DESCRIPTION

SPECIFICATIONS C3/AB, C3MULTI, C3/C, AND C3/CMULTI

Dimensions (single unit) 29” W x 25.5” H x 29.5” D (73.66 cm x 64.77 cm x 74.93 cm) Dimensions (double stacked units) 29” W x 43” H x 29.5” D (73.66 cm x 109.22 cm x 74.93 cm) Maximum Input 7.2 kW Power Supply US (1 φ

Europe(1φ US (3φ) C3Multi and C3/Cmulti 208 VAC, 60Hz, 3 φ, Delta, 30 amp, 4 wire including ground

Europe (3φ) C3Multi and C3/Cmulti 380-415 VAC, 50 HZ, 3φ, WYE, 15 Amp, 5 wire including ground

Microwave Frequency 2.45 GHz Connections including ground The unit is supplied with a 6’ power cord that includes:

208 VAC, 60Hz, 1 φ, 35 amp, 3 wire including ground 240 VAC, 60 Hz, 1φ, 30 amp, 3 wire including ground 230-240 VAC, 50 Hz, 1φ, 30 amp, 3 wire including ground

240 VAC, 60 Hz, 3φ, Delta, 22 amp, 4 wire including ground

230-240 VAC, 50 HZ, 3φ, Delta, 22 Amp, 4 wire including ground

US (1 φ) NEMA 6-50P

Europe(1φ) 32A IEC 60309 plug

US (3 φ) NEMA 15-50P

Europe(3φ) 32A IEC 5 Pin plug

the installing contractor.

Maximum Power Usage

Convection Oven Microwave Oven

5.2 kW

2.0 kW

TABLE 1 - 1 Oven Specifications

INSTALLATION

The TurboChef Technologies, Inc. oven is manufactured to comply with applicable CE, ETL, FDA, and FCC requirements. In addition, the unit is ETL classified to NSF 4. Note: Some European models may or may not be certified under US FDA and/or ETL regulations. All equipment is designed and certified for safe operation when installed in accordance with local and/or national codes. Many local codes exist, and it is the responsibility of the owner and installer to comply with these codes. In addition, if the oven is not UL or ETL listed it MAY NOT BE USED or SOLD US or any of its territories.

In no event shall the manufacturer assume any liability for damages or injuries resulting from installations which are not in compliance with the instructions and codes listed above.

WARNING!!

DEATH, INJURY, AND EQUIPMENT DAMAGE could result from improper installation of this oven or installation of an oven which has been damaged during shipment or storage. Either of these conditions could void the equipment warranty.

DO NOT INSTALL an oven suspected of damage.

INSTALL this oven according to the policies and procedures outlined in this manual.

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Installation Specs

OVEN LOCATION

The well planned and proper placement of your oven will result in long term operator convenience and satisfactory performance.

Be sure to place the oven in an area which is accessible for proper operation and servicing.

The countertop or work surface must be able to support the weight of 250 pounds. The manufacturer shall not assume liability for damage or injury resulting from improper installation of equipment including temporary or unstable work stations or countertops.

There must be 2” (5.08 cm) between the top of the unit and any shelf or other surface.

The oven must be installed level front to back and side to side. The oven legs may be bolted to the counter top if desired.

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TurboChef Technologies, Inc. C Series

BASIC CLEANING PROCEDURES

PROBLEMS ASSOCIATED WITH IMPROPER CLEANING

The oven may not be operating correctly because it is not being cleaned properly. If the door is leaking microwaves, erratic operation of the display and other electrical components can occur. Also food deposits left in the oven will turn into black carbon from the high heat. Carbon can cause arcing inside the cooking area and can reflect energy back to the magnetron.

If a customer tells you they are experiencing cooking performance problems, carefully inspect the cooking platter and waveguide cap for chips. If the platter or waveguide cap are chipped and soaked in water, they will absorb the water. The water will then be heated instead of the food product. The chipped part must be replaced.

DAILY CLEANING

1. Carefully remove the ceramic cooking platter and wave–guide cap. Spray both pieces only with TurboCare→ Oven Cleaner and set aside to allow the cleaner to penetrate. DO

NOT soak the Ceramic Cook Platter or Waveguide Cap in water.

2. Clean the ceramic cooking platter, and wave guide cap using brushes and scrub pads. Rinse to remove all cleaner and debris. Inspect for damage and replace as required.

3. Reinstall the clean wave–guide cap into the oven. This will protect the wave–guide seal while the cook chamber is cleaned.

4. To clean the interior of the oven, use a 3”x5” green scrub pad. Use only TurboCare→ Oven Cleaner on tough spots. DO NOT wash out the interior cooking area. The waveguide quartz seal is not a water tight seal. Wipe out the oven with a damp rag. If the door area needs cleaning, be careful not to damage the small rubber gasket around the door shunt area.

5. Remove the lower access panel and grease collection pan. Empty, clean and reinstall the pan.

6. Verify the louvers on the front and side of the oven are clean of lint and unobstructed.

MONTHLY CLEANING

Remove and clean the exhaust cover from the back of the oven.

Cook Platter

Waveguide

Cap

Exhaust

Cover

FIGURE 2 - 1 Cleaning

2- 2

Grease

Tray

Lower Access

Panel

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Cleaning & Operating

GLOSSARY OF COMMON OPERATING TERMS & ERROR MESSAGES

OVEN OPERATING COMPONENTS Display - Primary interface to relay messages to

the operator. Keypad - Primary interface for the operator to

control the oven. Cook Chamber - Cavity in which the food

products are cooked.

PRODUCT RECIPES Recipe - The food product recipe programming

consists of total time, percent of total time per event, percentage of hot air flow (AIR) required and microwave (MW) level required.

Cook Cycle - Total time of operation for a recipe. Cook Event – Segment of a recipe, up to 6 events

can be used for each recipe. Duration - Time, in percent of total time of a single

cook event. Air - Percent of convection air flow during a cook

event. MW - Percent of microwave used during a cook

event. Cook Temperature Set Point - Temperature

should be a constant parameter. The same cook temperature should be used by all cook recipes.

MODES Mode – The software environment which allows

certain operations to occur. There are several modes, STANDBY, COOK, WARM UP and COOL DOWN in which the oven can operate.

Standby Mode - The standby mode is similar to oven off. In standby there is no power to the oven. There is power to the control, however, the oven will not operate in standby mode.

Cook Mode - Mode used to perform the normal oven operations, such as, monitor the key pad for requests to cook or change mode, and maintain the oven at the cook temperature set point.

Warm–Up Mode - Mode to bring the oven up to the cook temperature set point.

Cool–Down Mode - Turns off all oven components except the cooling fan and circulation blower.

ERROR MESSAGES LO MAG CURR – the magnetron transformer is

drawing less than 7 amps. The normal current draw is approximately 9 amps. The current draw is being monitored by the control board which has a current transformer mounted on it.

LO COOK TEMP – the temperature set for the C3 SERIES is not being maintained within 84oF (46oC) of the Cook Chamber Setpoint. It is referenced by the cook chamber type K thermocouple. Note: It may also be controlled by the heat exchanger thermocouple.

MAG OT – the snap disk on the magnetron has overheated and has tripped.

BLOWER STAT – the control board is not receiving the proper output from the convection (blower) motor speed control.

LO MAG FLUX – there is a small antenna in the launch tube of the wave guide. This antenna is attached to the control circuit board by an RF cable. The control circuit board detects and amplifies the signal and looks for a certain fluctuation which indicates the magnetron is operating and the stirrer blade in the launch tube is rotating. When not cooking a minimum change of 20 is being looked for. When you are cooking a product a minimum change of 10 is being looked for. When viewing the RF display, it will fluctuate quickly with a maximum value of 120 (plus or minus 20).

Note: This feature is optional on the C3/C and C3/CMulti Ovens.

ELECTOVR TMP – the K type thermocouple connected to the control board is above 140ºF.

OVEN DOOR OPEN – (during cook cycle) the cooking door has been opened during a cook cycle and has not been closed properly.

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display reads

DONE

food from oven

Display reads

XX:XX

COOKING

NU SUBMENU

Display

PRESS ENTER

Press soft key

next to OVEN ON

(to right of display)

Display reads

OVEN OFF

START

(Blank Display if off

for over one hour)

Press any key

to initialize

The oven will

default to the

if no change

is entered.

Display

COOLING

WARMING UP

Press soft key

select menu.

If oven

temp

low

If oven

temp

high

Press soft key

to pick submenu.

Use the ARROW keys to change

the temperature.

The range is

between 350ºF and 520ºF

READY TO COOK

(oven beeps)

(oven to set temp)

Press

STOP key

B Open Door

Cook More

the oven has

been used in

proceed to

here.

See next

page

See next

page

(between 175ºC and 275ºC)

TurboChef Technologies, Inc. C Series

OPERATIONAL FLOW CHART

the last hour,

In 25ºF increments

Press ENTER to

Cooking begins

(In 15ºC increments)

program med temperature

When finished

Display reads

FIGURE 2 - 2a Operational Flow Chart

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Press RESUME

to continue

Display reads

PAUSE

ITEM

RESUME

If the door is open during

the cook cycle

Press key to right

or left of desired

cook option

Display reads

COOK MORE

BROWN MORE

If you do not press the stop key you can

COOK MORE - Microwave only

BROWN MORE - Convection only

COOK & BROWN - Microwave + Convection

Use the

arrows keys

to set the time

(20 sec increments)

Cleaning & Operating

GROUP

cook the product more if it is not done

COOK & BROWN

2 - 5

FIGURE 2 - 2b Operational Flow Chart (continued)

Page 16

1 0 0 0

5 0

0 0

Enter Access code

9428

then press ENTER

Press BACK key

until the display

reads OVEN OFF

Display reads

ENTER PI

Press the

at the same time.

<GROUP>

Use the number/letter keys to

enter the desired menu

NOTE: Cursor under

selected letter.

NOTE:

1. Cursor under figure indicates it is select

ed.

2. Cursor advances to next figure after 3 seconds.

4. Use UP or DOWN arrow keys to advance to any

5. Save, test or use back key to exi

t when finished.

Press soft key next

to display you wish

to change.

<ITEM>

Use the number/letter keys to

enter the desired submenu

name.

(In minutes and seconds)

XXX

%AIR

XXX %WAVE

XXX 1

A. Set time from 0

% to 100%

Note: % times must add up

to 100% to avoid error msg.

B. Set % of blower speed

from 10% to 100% in 10%

increments.

C. Set % of microwave

from 0% to 100% in 10%

increments.

D. You can program up to 6

events pe

r item. When an

event is finished, the next

one begins. Set a zero time

to end a programmed

event.

Press SAVE. (TEST runs

program without saving it.)

Press BACK key to exit

program mode.

TurboChef Technologies, Inc. C Series

PROGRAMMING FLOW CHART

CURSOR & MOVEMENT KEY

UNLOCKS DISPLAY

ARROW keys

%TIME

desired line item.

GROUP A

ITEM 1

COOK TIME XXX

%TIME

%AIR

2 0 0 0 3 0 0 0 4 0 0 0

6 0 0 0

TEST

2- 6

%WAVE

SAVE

FIGURE 2 - 3 Programming Flow Chart

Page 17

Press the

BACK & ENTER

keys at the same

time.

ENTER ACCESS

Enter Access Code

TurboChef Technologies, Inc. C Series

TEST FUNCTION QUICK REFERENCE

UNLOCKS DISPLAY

Press the BACK

key

until the display

reads

OVEN OFF

Display reads

CODE

9-4-2-8

press ENTER

DISPLAY PAGE 1 CC XX - thermocouple cooking cavity temperature

BLOWER – runs the blower motor in 10%

increments ºELEC – thermocouple electrical compartment

temperature

STEST – initiates the self test function HX XX – thermocouple heat exchanger temperature HEATER - turns on HOT AIR heater element MGTRON – (press & hold) runs the magnetron

circuit DIAG – runs the cooking display w/status

indicators at the bottom of the display

DISPLAY PAGE 2 CC XX - thermocouple cooking cavity temperature

HX XX – thermocouple heat exchanger temperature S/N – for entering the serial number of the C3

SERIES

CCC - view/reset number of cook cycles PIN – enters a new 4 digit password number F/C - Fahrenheit or Celsius temperature display FF – view/reset cook fault counters IAF – allows you to view or change the Idle Airflow

FIGURE 3 - 1 Enter Test Function Mode

The test function allows the technician to operate components individually and get diagnostic information. There are 2 pages of test functions. To change pages use the DOWN ARROW key. Refer to the brief descriptions on this page to help determine which test function will help you. Before operating a test function, read the full description of the test function on these following pages.

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Page 18

CC XX

HX XX

BLOWER

HEATER

STEST

DIAG

L1 L2 L3 L4 R1 R2 R3 R4

TEST FUNCTION DETAILED DESCRIPTION

TO ENTER TEST FUNCTION MODE

1. From the standby mode, press and hold both BACK and ENTER keys simultaneously.

2. The display reads:

ENTER ACCESS CODE

3. Use the NUMERIC keypad to enter the following access code:

9 4 2 8

4. Press the ENTER key.

TEST FUNCTION OPTIONS

The test screen displays the CC (cook cavity) and HX (heat exchange) temperature at the top of the screen.

The control displays page one of the test function options. Press the DOWN ARROW key to display page two of the test functions options.

To access a test function, press the corresponding soft key repeatedly.

TEST FUNCTION OPTIONS - PAGE 1

TEST

ºELEC

P S M t h H A W

Test Function Options - page 1

NOTE: The R1-4 and L1-4 are used for key identification in

this manual. They do not appear on the oven.

FIGURE 3 - 2 Test Functions - Page 1

MGTRON

Blower Speed

The BLOWER key (L2) increments the blower speed in 10% steps. When the blower speed is 100%, the next press sets the speed to 0%.

Electronic Compartment Temperature

The ºELEC key (L3) displays the temperature inside the electronic enclosure.

Self Test Function

The STEST key (L4) initiates a self–test function to test all major components of the oven. Press the L4 key once to run the self test. Press the BACK key to return to the standby mode.

Heater Test

The HEATER key (R2) turns the heater on or off. If the heaters are on, pressing the R2 key turns the heaters off. If the heaters are off and the maximum (HX) temperature (900ºF) is not exceeded, pressing the R2 key turns the heaters on. If the blower speed is 0, the blower speed is set to the Idle Airflow.

Magnetron

The MGTRON key (R3) is a press and hold key to test the magnetron. If the magnetron filaments are off when the MAG key is pressed, the message “MAG WARMING UP” is displayed. After a 3 second delay or if the filaments are already on, “MAG ON, RF xxx” is displayed. “xxx” is the fluctuating microwave power measured in the wave–guide. Any time the MAG key is released, the magnetron turns off. The filament power (magnetron cooling fan and mode stirrer) remains on for three minutes.

NOTE: The RF power indication is optional on the C3/C SERIES model oven.

Diagnostic Display

The DIAG key (R4) turns on or off the diagnostic display feature. This feature adds temperature displays to the menu group screens.

While cooking, cook setting parameters are displayed when diagnostics are enabled.

With diagnostics enabled, status indicators are displayed on the lower left of the display. Each indicator is a letter, which is displayed in a positive sense when the status condition is on. The letter is reversed when the condition is off.

Test

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Page 19

CCC

IAF TEST

L1 L2 L3 L4 R1 R2 R4

TurboChef Technologies, Inc. C Series

Status Indicators There are eight status indicators:

• P - Cook door primary interlock switch

• S - Cook door secondary interlock switch

• M - Cook door monitor interlock switch

• t - Magnetron over temperature switch

• h - Heater turn on command

• H - Heater current detected

• A - Blower motor speed control “run” status

• W - Magnetron current detected

Example: When the status indicator is highlighted, for example M, the status is open or null. In this case, the Monitor switch is in the Open State.

TEST FUNCTION OPTIONS - PAGE 2

CC XX

S/N

PIN P S M t h H A W

Test Function Options - page 2

NOTE: The R1-4 and L1-4 are used for key identification in

this manual. They do not appear on the oven.

FIGURE 3 - 3 Test Functions - Page 2

Serial Number

NOTE: This should only be needed when installing a new control. The S/N is located on the back of the oven.

The first press of the S/N key (L2) displays the oven’s twelve–digit serial number. Use the following procedure to enter the serial number.

1. Press the S/N key again to enter the edit mode.

2. Right and left arrow key appear on either side of the serial number. These arrows are used to navigate within the text. Use the L1 SOFT KEY to move the cursor to the left. Use the R1 SOFT KEY to move the cursor to the right.

HX XX

F/C

3. Use the NUMERIC KEYPAD to change the digits as follows:

A) Press the key once to enter the number.

B) Press the key twice to enter the first letter.

C) Press the key three times to enter the D) Press the key four times to enter the third E) Press the key five time to enter the fourth

4. Press the ENTER KEY to store the new number.

Cook Cycle Count

The CCC key (L3) displays the cook cycle count. The count is incremented when the cook process completes at least the first event. The count includes test cooks selected while in the edit function. To reset the count, press 0 key.

PIN Number

The PIN key (L4) is used to enter a new personal identification number (password) for accessing the edit function. When the button is pressed the display reads:

ENTER PIN _ _ _ _

Use the numeric keypad to enter the new PIN. Only numbers are applicable for the PIN.

Temperature Units

The F/C key (R2) alternately selects Fahrenheit or Celsius for temperature displays.

Cook Fault Counter

The FF key (R3) is used to read and reset the oven cook fault counters. Repeat pressing the FF button to view all six fault counters. Press the 0 key to reset the fault counter displayed. The faults include:

• BLOWER STATUS (blower motor speed

controller)

• LOW COOK TMP (temperature)

• LOW MAG CURR (current)

• LOW MAG FLUC (rf power fluctuations)

• MAG OVER TMP (over temperature switch)

• ELEC OVR TMP (electronics)

Idle Airflow

The first press of the IAF key (R4) displays the selected idle airflow. Subsequent presses of the IAF button increment the idle airflow in 10% steps from 20% to 50%. When the idle airflow is 50%, the next press sets the airflow to 20%.

3 - 4

second letter. letter. letter; if applicable.

Page 20

TurboChef Technologies, Inc. C Series

KEY SEQUENCE OF OPERATION - FAILURE MODE ANALYSIS

Unit will perform self test of component functions.

1. No display. Check items: #2 (fuse) #4 (24VDC power supply). #9 (SMT controller board). Check for 5 VDC

on P5 (J3 on ver 2) pin 1+ & 3-.

NOTE: Check cable connections.

2. Door interlock switch error. Check items: #5 (primary & monitor door switch) (secondary

switch on left side of oven not shown.) #6 (K2 relay) #1 (CB1) (circuit breaker) See page 4-6.

3. Mag current low. Check items: #1 (CB1) (circuit breaker) #3 (Convection high heat OT) #6 (K3 relay filament heat) #8 (K4 SS relay for magnetron) #13 through #17.

NOTE: Reference pages 6-4 through 6-6 for

component testing.

4. Mag Fluc Low. Check items: #12 (stir motor) #9 (SMT controller board RF cable

connection.) #13 through #17

NOTE: If (RF) value on display is (0 or 1). No

RF power is present. If (RF) value is displaying a number value like (60) with little fluctuation then check item #12 (Stirrer fan in launcher tube may need to be inspected. This involves removing the quartz seal.)

NOTE: Reference page 6-4 through 6-6 for

component testing.

5. Mag Thermo SW. Check items: #17 (magnetron) #11 (magnetron cooling fan.)

NOTE: Attached to back of the magnetron is

the Mag thermo snap disk.

6. Blower motor defective message. Check items:

#18 Blower motor speed controller. #19 Convection (blower) motor

NOTE: Reference pages 5-6 and 5-7 for

BMSC defective messages.

7. Heat Exchanger Thermocouple OPEN. Display shows the # 999. Check items:

#9 (SMT controller board connector (J2) pins #37 & #38).

NOTE: Check pin connections. NOTE: Reference pages 4-3 through 4-5.

8. CC Heat thermocouple OPEN. Display shows the # 999. Check items:

#9 (SMT controller board connector (J2) pins #37 & #38).

NOTE: Check pin connections. NOTE: Reference pages 4-3 through 4-5.

9. Heat Rise Low. Check items: #7 (K5 SS relay for heater) #21(K7 SS relay for heater) #18 (convection motor controller) #20 (CB2 and CB3) (circuit breaker)

NOTE: Check heater continuity.

4 - 2

Page 21

ELECTRICAL COMPONENT LOCATIONS:

6 2

8 7

Electrical Compartment

K4 K5

K1 K2 K3

1. CIRCUIT BREAKER: CB1-35 AMP

2. FUSES: (2 x 12 AMP - C3/AB;C3/C) (25 AMP - C3/C)

3. CONVECTION HEAT HIGH LIMIT

4. 24 VDC POWER SUPPLY

5. DOOR SWICH ASSEMBLY (NOT SHOWN) 6a. K1 RELAY AND SOCKET HIGH LIMIT (C3/AB ONLY) 6b. K2 RELAY AND SOCKET FOR MONITOR CIRCUIT 6c. K3 RELAY AND SOCKET FOR MAGNETRON FILAMENT 6d. K6 RELAY AND SOCKET FOR MAGNETRON COOLING FAN

7. K5 SOLID STATE RELAY FOR HEATER

8. K4 SOLID STATE RELAY FOR MAGNETRON T1 TRANSFORMER

9. SMT CONTROLLER BOARD

10. ELECTRICAL COMPARTMENT COOLING FAN #1

11. MAGNETRON COOLING FAN

12. STIRRER MOTOR

13. HV DIODE

14. HV CAPACITOR, 2500 VAC

15. FILAMENT TRANFORM

16. MAGNETRON HV TRANFORMER

17. MAGNETRON

18. BLOWER MOTOR SPEED CONTROLLER

19. CONVECTION MOTOR

20. N/A

21. N/A

22. THERMOSTAT, MAGNETRON (212F)

23. THERMOSTAT, CLOSE ON RISE (120F), ELECTRICAL COMPARTMENT COOLING FAN

1 PHASE EC BOX.WMF

FIGURE 4–1a Electrical Component Locations C3/AB and C3/C Only

4 - 3

Page 22

TurboChef Technologies, Inc. C Series

ELECTRICAL COMPONENT LOCATIONS: “MULTI” OVENS ONLY

8 7

K4 K5

K2 K6K3

1. CIRCUIT BREAKER: CB1-35 AMP

2. FUSES: (2 x 12 AMP - C3/AB;C3/C) (25 AMP - C3/C)

3. CONVECTION HEAT HIGH LIMIT

4. 24 VDC POWER SUPPLY

5. DOOR SWICH ASSEMBLY (NOT SHOWN) 6a. NA 6b. K2 RELAY AND SOCKET FOR MONITOR CIRCUIT 6c. K3 RELAY AND SOCKET FOR MAGNETRON FILAMENT 6d. K6 RELAY AND SOCKET FOR MAGNETRON COOLING FAN

7. K5 SOLID STATE RELAY FOR HEATER

8. K4 SOLID STATE RELAY FOR MAG T1 TRANSFORMER

9. SMT CONTROLLER BOARD

10. ELECTRICAL COMPARTMENT COOLING FAN

11. MAGNETRON COOLING FAN

12. STIRRER MOTOR

13. HV DIODE

14. HV CAPACITOR, 2500 VAC

15. FILAMENT TRANFORM

16. MAGNETRON HV TRANFORMER

17. MAGNETRON

18. BLOWER MOTOR SPEED CONTROLLER

19. CONVECTION MOTOR

20. CIRCUIT BREAKERS CB2-15AMP & CB3-15AMP HEATERS

21. K7 SOLID STATE RELAY FOR HEATER ELEMENT

22. THERMOSTAT, MAGNETRON (212F)

23. THERMOSTAT, CLOSE ON RISE (120F), ELECTRICAL COMPARTMENT COOLING FAN

3 PHASE EC BOX.WMF

FIGURE 4–1b Electrical Component Locations C3Multi & C3/CMulti Only

4 - 4

Page 23

Electrical Compartment

ELECTRICAL COMPONENT DESCRIPTION WITH VOLTAGE INFORMATION

Item 6c. K3 Relay for Filament Heat

CAUTION!

Magnetron voltage potential of 4800 VAC

NOTE: To test if 208-240 VAC is present use CB1

Terminal L2A white wire as neutral.

NOTE: To test if voltage at coil is present, measure

voltage across coil. Voltage should be present when activated.

COMPONENTS Item 1 Circuit Breaker CB1–35A

• 208-240 VAC Trip Coil Terminals (1 & 2).

• 208-240 VAC Line Input.

• 208-240 VAC Line Output.

Item 2 Fuse

• Qty (2) 12 AMP Fuse. USE ONLY GOULD ATM 12 or DIRECT EQUIVALENT.

• Qty (1) 25 AMP Fuse. USE ONLY GOULD ATM 25 or DIRECT EQUIVALENT. (C3/C Model Only)

NOTE: Remove right side panel to expose fuse

holders.

Item 3 Convection Heat High Limit

• 208-240 VAC (N/O) Terminals (13 &14).

NOTE: Manual reset trip temp 350ºC or 670ºF.

• 208-240 VAC (N/C) Terminals (11/12) & (31/32). C3Multi and C3/CMulti Only

NOTE: Automatic reset trip temp 350ºC or 670ºF.

Item 4 24 VDC power supply

• Line power in (L & N) 208-240 VAC.

• Output (+V & -V) 24 VDC.

Item 5 Door Switch Assy

• 24 VDC Switch #1 CDP (Cook door primary).

• 24 VDC Switch #2 CDS (Cook door secondary).

• 24 VDC Switch #3 CDM (Cook door monitor).

Item 6a. K1 High Limit Relay

• 208-240 VAC Coil terminals (8 & 1).

• 208-240 VAC Input Terminal (6).

• 208-240 VAC Output Terminals (5).

Item 6b K2 Relay for Monitor circuit

• 24 VDC Coil Terminals (8)+24 VDC & (1)-24 VDC.

• 208-240 VAC Input Terminal (6).

• 208-240 VAC Output Terminal (7).

• 24 VDC Coil Terminal (8)+24 VDC & (1)-24

VDC.

• 208-240 VAC Input Terminals (6 & 3).

• 208-240 VAC Output Terminals (5 & 4).

Item 6d. K6 Relay for Magnetron Cooling Fan

• 24 VDC Coil Terminals 24 VDC Input Terminals (6)-24VDC & (3)+24VDC.

• 24 VDC Output Terminals (5)-24VDC & (4)+24VDC.

Item 7 K5 Solid State Relay for Heater Element

• 24 VDC Coil Terminals (3+ & 4-).

• 208-240 VAC Input Terminal #1.

• 208-240 VAC Output Terminal #2.

Item 8 K4 Solid State Relay for Magnetron Transformer T1

• 24 VDC Coil Terminals (3+ & 4-)

• 208-240 VAC Input Terminal #1.

• 208-240 VAC Output Terminal #2.

Item 9 SMT Controller Board

• 24 VDC Line Input P2 location #16

• 24 VDC Line return location P2 #22

• Current Sense Transformer CT1.

NOTE: Amp draw on wire going to Mag is 9 AMP.

• Current Sense Transformer CT3.

NOTE: Amp draw on wire going to Heater is 19 AMP.

• Reference Page 6-7 for replacement.

Item 10 Electrical Compartment Cooling Fan #1

• 24 VDC Output from (-V 24 VDC Power supply & OT #1 terminal NO).

NOTE: OT #1 closes at 120ºF.

Item 11 Magnetron Cooling Fan

• 24 VDC Input from K6 Terminals (5 & 3).

• 24 VDC Output from K6 Terminals. (5 & 4).

4 - 5

Page 24

TurboChef Technologies, Inc. C Series

Item 12 Stir Motor

• 208-240 VAC Connector J1 (1 & 2)

NOTE: Energized by K3 Filament Heat contactor.

Item 13 Diode

• Reference page 6-5 for test procedure.

Item 14 Capacitor

• Reference page 6-5 for test procedure.

Item 15 Filament Transformer

• Reference page 6-5 for test procedure.

Item 16 Magnetron Transformer T1

• Reference page 6-5 for test procedure.

Item 17 Magnetron

• Reference page 6-4 for test procedure.

Item 18 Blower Motor Speed Controller

• 208 -240 VAC Line power location (N & 230V)

• Motor output (U,V,W) 24 - 240 VAC, 12120 Hz, 3 phase.

• 24 VDC Motor control inputs and outputs.

• #4) FWD RUN 24 VDC input.

• #7) 0 to 10 VDC Speed input

example, 1 VDC = 10% RPM, 2 VDC= 20% RPM.

• #9) Speed Command.

• #11) 24 VDC Common

• #12) Running B.M.R

Item 19 240 VAC Blower Motor inputs.

• 24 - 240 VAC, 12 - 120 Hz, 3Ø

Input from B.M.S.C Terminals (U.V.W).

Item 20 Circuit Breakers (CB2 and CB3) for Heater

• 200-240 VAC Inputs

• 200-240 VAC Outputs

Item 21 K7 Solid State Relay for Heater Element

• 24 VDC Coil Terminals (3+ & 4-).

• 208-240 VAC Input Terminal #1.

• 208-240 VAC Output Terminal #2.

FIGURE 4 - 2 Relay Terminal Locations

Relay K1, 2, 3 & 6 Terminal Locations

Relay Base

24VDC

208/240VAC

Relay Coil

24VDC

208/240VAC

1 (-)

8 (+)

4 - 6

Page 25

EBM Electrical Compartment Cooling

Electrical Compartment

ELECTRICAL COMPONENTS PARTS LIST: All C Series Ovens (See Figures 4-1a/b)

Item

1 0322 Circuit Breaker CB1-35A w/Trip Coil C3/AB & C3/C

2 100596 12 Amp Aux Fuse All 2b 100597 25 Amp Heater Fuse C3/C 2c 100591 Fuse Holders All

3 R7603 Convection High Limit C3/AB & C3/C

3 102016 Convection High Limit C3Multi & C3/CMulti

4 M9608 24 VDC Power Supply All

7 101285 Solid State Relay for Heater All

8 101285 Solid Sate Relay for Magnetron All

9 10310 SMT Controller All

10 M9609 Electrical Compartment Cooling Fan C3/AB & C3Multi

Part

Number

C0278 &

C0309

Description Used on Model(s)

Relay (24 VDC Coil/240 VAC

Output) & Socket

All

10 TBD

11 0262 Magnetron Cooling Fan All 12 101891 Stirrer Motor All 13 100480 HV Diode All 14 100206 HV, Capacitor, 2500 V All 15 102091 Filament Transformer All 16 102093 Magnetron Transformer T1 All 17 100860 Magnetron All 18 100441 Blower Motor Speed Controller All 19 C0299 Convection Motor Assy All

20 103170

4 - 7

Circuit Breakers CB2 & CB3 15 Amp

Fan

15Amp

C3/C & C3/CMulti

C3Multi & C3/CMulti

Page 26

TurboChef Technologies, Inc. C Series

ELECTRICAL COMPONENTS PARTS LIST (CON’T): All C Series Ovens(See Figures 4-1a/b)

Item

21 101285 K7 Solid State Relay C3Multi & C3/CMulti 22 T102070 Thermostat, Magnetron (212F) All 23 T102085 Thermostat, EC Box All NS 100542 EMI Filters (not shown) C3Multi & C3/CMulti NS C0286 EMI Filter C3/AB & C3/C NS 100652-1 240 VAC Sheathed Heater Assy All NS 100652-2 208 VAC Sheathed Heater Assy All NS 100652-3 200 VAC Sheathed Heater Assy All

NS NOT SHOWN

Part

Number

Description Used on Model(s)

4 - 8

Page 27

CONTROL PANEL COMPONENT DETAIL

Electrical Compartment

CONTROL PANEL PARTS LIST (see above)

CONTROL PANEL ASSEMBLY AND COMPONENT

1. ASSEMBLED CONTROL PANEL

2. KEYPAD RIBBON CABLE

3. DISPLAY CONNECTOR

CONTROL PANEL ASSEMBLY AND COMPONENT

4. KEYPAD

5. CONTROL MOUNTING BRACKET

6. DISPLAY

ITEM

1 NA ASSEMBLED CONTROLLER PANEL All 2 NA KEYPAD RIBBON CABLE All 3 NA VFD DISPLAY CONNECTOR All 4 T0264 KEYPAD All 5 T0374 CONTROL MOUNTING PLATE C3/AB & C3MULTI 5 C0374 CONTROL MOUNTING PLATE C3/C & C3/CMULTI 6 T0238 VFD DISPLAY All

4 - 9

Part

Number

Description Used on Model(s)

Page 28

TurboChef Technologies, Inc. C Series

DOOR SWITCHES AND CIRCUIT BREAKERS

DOOR SWITCHES

The C series ovens have 3 door switches as mandated by law. The C3/AB and C3Multi have one door switch located on the left hand side (CDS) and is called the secondary switch. The other two switches are located on the right hand side (CDP & CDM). One is called the primary switch (CDP) and the other is called the monitor switch (CDM). The C3/C and C3/CMulti switch orientation is reversed, i.e., the monitor (CDM) and the primary switch (CDP) are located on the left side of the oven. The secondary (CDS) is located on the right side of the oven.

The monitor switch must close before the primary and secondary switches close (as the door is closed) or the circuit breaker will trip. If the primary or secondary switch is defective and not closing the screen will display a door open error message. To

determine what sequence the doors are closing

CIRCUIT BREAKER TRIP CHART

Component Possible Cause/Circuit Information

Magnetron transformer The magnetron transformer will draw approximately 9 amps when

functioning properly. Check winding resistances (See Page 6-5). A 3 amp draw indicates the diode is bad.

in, you will need to access the Test mode and activate the Test mode (See pages 3-2 to 3-4). By doing so, you will activate the status indicators at the lower left bottom of the display. Slowly close the door once you have activated the Test mode and observe the status indicators. As you close the door the M indicator must change from a highlighted state followed by the S indicator and final the P indicator. As you open the door, the sequence must reverse, i.e., P, S and then M. If this sequence is not correct, YOU MUST READJUST THE SWITCHES. See section 4-7.

CIRCUIT BREAKER (CB1)

The circuit breaker is a manual reset switch. It will trip if the total current draw is more than 35 Amps (C3/AB and C3/C)/15 Amps(C3/Multi or C3/Cmulti) or if it is activated by a safety fault. Refer to the chart below to help you determine what problem you may have if the circuit breaker has tripped.

Solid state contactor for Magnetron (K4)

Hot air heater element Use VOM meter.

Solid state contactor (K5) (K7) for hot air element

High limit & K1 relay (C3/AB and C3/C only)

Door switch closure (Read first paragraph on this page.) Check Switches with VOM meter.

(See above for correct current draw.) The coil operates on 24v dc. Solid state relays tend to fail closed. Check with VOM meter.

240V element is 12 ohms / current is 20amps. 208V element is 9 ohms / current is 23 amps.

C3/C oven only: Check the 25AMP fuse inline with the CB1 and the heater. See Figures 4-1a.

(See above for correct current draw.) The coil operates on 24v dc. Solid state relays tend to Fail closed. Check with VOM meter.

High limit tripped (670F). Reset high limit switch with screwdriver. Check thermocouples (See page 5-4) Verify contact points (6 to 5) on K1 relay are open. Check K5.

TABLE 4 - 1 Causes for Circuit Breaker Tripping

4 - 10

Page 29

DOOR SWITCH ADJUSTMENT

Tools Required:

• # 1 Phillips head screw driver

• # 2 Phillips head screw driver

• 3/8” socket wrench (1/4” drive)

• Needle nose pliers

• Large flat blade screw driver

GOAL

The goal of this adjustment procedure is to have the Monitor, Secondary and Primary switches close in that order as the oven door is closed. The switches must open in the reverse order as the door is opened, that is, the Primary, Secondary and then the Monitor open as the door opens. This procedure is written to insure proper oven operation and compliance with Federal regulations.

ADJUSTMENT

1) Remove the left and right side access covers (body sides).

2) Remove the lower louvered front access panel.

3) Remove oven top. It is secured in place with four 3/8” Nylock nuts to the upper frame sides.

4) Remove screw located on bottom of left side corner trim (front of oven) and carefully bend the trim out of the way to allow access to left side switch assembly and associated hardware. (See Fig. 4-3 ).

RIGHT SIDE OF OVEN: NOTE: The C3/C and C3/Cmulti oven switch

arrangement is different from the C3/AB and the C3Multi. The C3/AB and C3/Multi monitor and primary switches are on the right-hand side of the oven and the secondary switch is on the left-hand side of the oven. Regardless of their position on the oven, the procedure for adjusting the switches is the same for both types of ovens. See Figure 4-

5. Remove magnetron plenum assembly (secured by one PPH screw at rear of oven). The plenum assembly is located on the bottom right side of the oven.

6. On models C3/AB and C3Multi it may be necessary to remove the 35 AMP circuit breaker in order to gain access to the limit switches. If this is necessary, label each wire prior to removing it from the Circuit Breaker in the following step.

Electrical Compartment

7. Carefully pull down two tabs on the bottom of the circuit breaker and pull the breaker up and out to remove it from the din rail allowing access to the switch brackets on the right side of the oven

Note: Refer to page 4-14, DOOR ADJUSTMENT, along with this section if the cam follower bracket assembly has to be adjusted and tightened. This is

very important to prevent any potential damage to the door hardware from interference and to assure proper door closing tension.

8. Check that the trailing arm is properly engaged in cam follower bracket assembly and trailing arm guide blocks. When the door is closed the trailing arms should sit as shown. See Figure 4-3.

9. If the trailing arm is not properly engaged in cam follower bracket assembly or if it is hitting the assembly loosen the two 3/8” nuts securing the cam follower assembly.

10. Cam follower bracket assembly has clearance at the bottom to move. Pick up on trailing arm to engage it in trailing arm guide blocks and move cam follower bracket assembly up into notch on trailing arm. See Figure 4-5. Tighten the two 3/8” nuts when adjustment is correct.

11. When properly aligned, the door should have no play when pushed in the closed position and when opened the first movement of the trailing arm should be up and over the cam follower bracket assembly (both sides of the oven) – See Fig.4-5. Additionally, when the door is closed, the trailing arms should “snap” down into position. To test this, gentle pick up one of the trailing arms approximately ¾ inch and release it. The trailing arm should “snap” back down in to the same position each time. If it hangs or does not return to the exact position each time readjust the cam roller assembly.

12. If it is determine that a proper adjustment can not be made, it may be necessary to reposition the bottom hinge on the door. To do this, loosen item 11 (see Figure 4.3) on both sides of the oven. With all screws loose, close the door and push in and down on the door. While doing so, tighten all screws on the hinge. Now repeat steps 8-11.

4 - 11

Page 30

TurboChef Technologies, Inc. C Series

LIMIT SWITCH ADJUSTMENT PRIMARY AND MONITOR

13. Actuator tab should be positioned as shown in Figure 4-6. It should be parallel to the primary switch lever. Adjust and bend (needle nose pliers) actuator tab as necessary.

14. When the door is closed and the actuator tab is in contact with the primary and monitor switches the switches should both be closed. The actuator tab should be in contact with the switch paddles such that when the switches are closed there is about 0.020” of clearance between the switch paddles and the switch bodies. Also, the actuator tab should be at or close to horizontal and be positioned approximately 3/16” from the end of the monitor switch actuator tab. Adjust the interlock switch brackets by loosening the screws as necessary. See Figure 4.6.

15. Once the switches and actuator are properly adjusted, as the door is opened the primary switch should disengage before the monitor switch.

LIMIT SWITCH ADJUSTMENT SECONDARY

16. Refer to steps 8, 9, 10, and 11 this page. The trailing arm must be properly engaged in the cam follower bracket assembly and the trailing arm guide blocks.

17. Again, the actuator tab should be positioned as shown in detail of Figure 4-6. Adjust and bend (needle nose pliers) actuator tab as necessary.

18. When the door is closed, the actuator tab is in contact with the secondary switch paddle and the switch should be closed. There should be approximately 0.020” of clearance between the switch paddle and the switch body. Adjust the limit switch bracket by loosening the screws as necessary.

FINAL TESTING OF DOOR SWITCH ADJUSTMENT:

19. After the door switch assemblies have been properly aligned and adjusted on both sides, confirm that with the door closed that all three switch contacts are closed.

20. As the door is opened slowly confirm that all three switches operate in the correct sequence, i.e. as the door is opened the switches open in the order of primary, secondary, and monitor .

21. As the door is slowly closed confirm the switches close in the opposite order from above.

22. If the sequencing is not correct, readjust switch brackets and or associated hardware until all criteria are met.

SWITCH TEST AT TEMPERATURE:

23. Reinstall main circuit breaker on din rail and reattach wiring to bottom of circuit breaker.

24. Reattach left side trim piece and magnetron plenum assembly.

25. Refit top cover and left and right side covers.

26. Plug the oven in and set the temperature to 525 8F and allow the oven to come up to temperature and remain at temperature for 15 minutes.

27. Refer to section 3, page 3-3, and put the oven into test mode. At the bottom left of the screen are the letters p, s, and m. As the oven door is slowly opened, the background of the letters will light up indicating that the switches have opened.

28. Slowly open and close the door to confirm the proper sequence of the switches, p, s, m and m, s, p respectively.

29. If the sequencing is not correct, remove the left and right side covers and adjust the switch brackets as necessary and retest the oven.

30. If the sequencing is correct, while in the test mode refer to section 6-2 and perform the microwave radiation leakage tests.

4 - 12

Page 31

DOOR REMOVAL AND REPLACEMENT (LEFT SIDE)

1. TRAILING ARM GUIDE

2. TRAILING ARM

3. INTERLOCK ACTUATOR BRACKET

4. INTERLOCK SWITCH BRACKET

5. INTERLOCK MONITOR SWITCH

6. INTERLOCK PRIMARY SWITCH

7. DOOR HINGE BAR MOUNTING BRACKET

8. SPRING, TRAILING ARM

9. DOOR SPRING BRACKET

10. BRACKET, SPRING, LEFT

Figure 4-3 Door Interlock Mechanisms (C3/C and C3/CMulti Shown)

Electrical Compartment

15 14 13 12 11 10

11. 10-32 SCREWS (C3, C3/AB ONLY) M5 (C3/C)

12. CAM FOLLOWER ASSY

13. CAM F0LLOWER ROLLER

14. GUIDE BLOCK

15. HELPER SPRING

16. SCREW, FRONT TRIM (SHOWN WITH FRONT ACCESS PANEL REMOVED)

17. FRONT TRIM

4 - 13

Page 32

TurboChef Technologies, Inc. C Series

Figure 4-4 Interlock Placement Differences C3/AB vs. C3/C

4 - 14

Page 33

4. AS THE DOOR OPENS, THE TRAILING ARM MUST CONTACT CAM

Electrical Compartment

TRAILING ARM AND CAM MOTION

1. CAM FOLLOWER ROLLER

2. TRAILING ARM NOTES:

3. IN DOOR CLOSED POSITION, THE TRAILING ARM SHOULD SEAT AS SHOWN ON THE CAM. NOTE: BOTH THE LEFT AND RIGHT SIDES SHOULD BE ADJUSTED SUCH EACH SIDE SEATS AS SHOWN.

DURING FULL MOTION OF THE DOOR.

Figure 4-5 Trailing Arm and Cam Motion

4 - 15

Page 34

TurboChef Technologies, Inc. C Series

Figure 4-6: Interlock Switch Adjustment

4 - 16

Page 35

DOOR REMOVAL AND REPLACEMENT

Tools Required:

• 12” long #2 Phillips screw driver

• 3/8” hex driver

• 3/8” socket with 1/4” ratchet wrench

• Set of feeler gages

• Large flat blade screw driver

DOOR REMOVAL

1) Remove the side and top panels, top and bottom molding, control panel, and left perimeter trim piece.

2) Remove the interlock actuator tabs (#3) and front guide block assembly (#14) from both sides of the oven. (See FIGURE 4-7.)

NOTE: The guide block assembly may or may not contain guide block support shims. Guide block assemblies should be re–installed in the location they were removed from (i.e. right guide block assembly re–installed on right side) to prevent potential trailing arm binding.

3) Close the oven door and disconnect the springs (#8 & #15) from both trailing arms (#2).

4) Loosen but do not remove the nuts that hold the cam follower assembly (#12) in position, then rotate both assemblies down to vertical orientation.

5) Remove the door: a) Remove the four 10–32 (M5) UNF

Phillips screws (#11) from the door hinge bar mounting brackets (#7) on both sides of the oven.

b) Pull the door away from the oven, bottom

first, to slide the hinge bars (#14) out of their slots. Use caution in removing the door to avoid bending the hinge bars. If the bars bind in their slots, gently wiggle the door to free them.

c) Remove the door, guiding the hooked

portion of the trailing arm over the cam follower rollers (#13).

DOOR INSTALLATION

6) Rotate cam follower assembly (#12) down to vertical position to permit the trailing arms (#2) to pass over the cam follower roller (#11) in step 2.

7) Assemble the door to the oven:

Electrical Compartment

a) Slide the trailing arms through the upper

slots and over the rollers.

b) Slide the hinge bars (not shown) through

the lower slots. Use caution in installing the door to avoid bending the hinge bars. If the bars bind in their slots, gently wiggle the door to free them.

c) Attach the bars to the door hinge bar

mounting brackets (#13) with four 10–32 (M5) UNF screws (#11) on each side (finger tight). Apply 242 thread–locker to screw threads prior to installation.

d) Close the door and apply even pressure

(approximately 15 to 20 pounds) to the face of the door to squarely seat the door shunt on the oven face. Continue to apply this force while tightening the four screws on each side (two people are recommended).

8) Install the springs (#8) on each side between the trailing arm and spring brackets – See door switch adjustment section beginning on page 4-7. Any interference between any other component or wiring and the springs or trailing arms must be corrected before proceeding.

9) Install the front trailing arm guide blocks (#14):

a) Assemble (per side) one spacer block,

two guide blocks, two spacers, and two screws with lock–washers.

b) Install one guide block assembly over

each trailing arm and tighten screws.

10) Install the interlock actuator tabs (#3): a) Open the door. b) Attach the interlock actuator tabs to the

trailing arms with two 6–32 UNF (M3) screws, and lock and flat washers on each side.

NOTE: As you face the oven front both actuator tabs are mounted on the inside of the trailing arms.

4 - 17

Page 36

TurboChef Technologies, Inc. C Series

b) If the hinge bars have been pushed too

WARNING!! At the first closing of the door verify that the actuator tabs do not hit and bend on the trailing arm guides block assemblies (#1 and #14). Verify placement of the actuator tabs to insure that the interlock switch levers do not bottom out on the switch body (#6). If they do, open the door and realign switch brackets and or actuator tabs again checking for interference with the guide as the door is closed.

DOOR ADJUSTMENT

1) Adjust cam follower assembly (#12) to

tension the trailing arms (#2) to apply closing pressure:

a) Close the door. b) Rotate the cam follower assembly so that

the top of the trailing arm engages the rear guide (#1) 0.125 inch (+0.125 -

0.031) above the top of the chamfered lead in.

c) The cam follower assembly roller (#11)

should be located on the ramp portion of the trailing arm with 0.020” to 0.050” gap between the top of the roller and the bottom of the trailing arm radius.

d) Tighten the cam follower bracket nuts.

2) Adjust the interlock switch brackets (#4) and

actuator tabs (#3):

NOTE: Refer to page 4-6 for the final door

switch adjustment. This adjustment is completed after all door adjustment steps have been completed.

3) Adjust the door pivot position for best

alignment by inspecting for the following conditions:

a) Ideally, the microwave sealing planes

(the portions of the oven face and door shunt that overlap each other) should touch, since as the gap between the sealing planes increases, it becomes more likely that the microwave leakage will increase. However, because of manufacturing tolerances, the microwave sealing planes of the door shunt and the oven flange are not perfectly flat. The best door alignment minimizes the gaps between the sealing planes both top and bottom.

c) If the hinge bars have not been pushed

NOTE: To correct B or C: Loosen the door

d) By design there is a 0.030” clearance

e) Repeat adjustment steps 1 and 2 as

4) Adjust the interlock switches per procedure beginning on page 4-7.

5) After adjusting the interlock switches the oven must be checked for microwave leakage. Refer to the page 6-2 for instructions and acceptable limits.

far into their brackets (#13), the lower edge of the sealing planes will be tight and there will be an excessive gap between the sealing planes along the top edge. In this position, with the top molding removed, most of the hex head of the shunt screws will be seen.

far enough into their brackets the upper edge of the sealing planes will be tight and an excessive gap will occur between the sealing planes along the bottom edge. This could permit excessive microwave leakage along the bottom edge.

hinge bar screws (#11) on both sides. Close the door and apply even pressure (approximately 15 to 20 pounds) to both sides of the door to squarely seat the door shunt on the oven face. Continue to apply this force while tightening the four screws on each side (two people are recommended).

between the Phillips head screws securing the plastic shunt cover and the oven flange on the C3/AB and C3Multi. The C3/C and C3/CMulti gap should be

0.060” (1.50 mm). Verify that one or more of these screws does not contact the oven flange and increase the gap between the sealing planes. This condition may be indicated by the head of the screw(s) marking the oven flange. If this is the case, the door may be warped or the shunt may not be flat. Adjust, repair, or replace the door so that when the door shunt is seated squarely none of the Phillips head screws contact he oven flange.

required after completing door alignment.

4 - 18

Page 37

Electrical Compartment

FIGURE 4 – 7a Door Removal and Replacement (Left Side)

4 - 19

Page 38

TurboChef Technologies, Inc. C Series

DOOR REMOVAL AND REPLACEMENT PARTS LIST (LEFT SIDE): See Figure 4-7a.

ITEM

1 T0538 TRAILING ARM GUIDE C3/AB, C3MULTI 1 C0538 TRAILING ARM GUIDE C3/C, C3/CMULTI 2 T0550 TRAILING ARM, RH C3/AB, C3MULTI 2 C0550 TRAILING ARM, RH C3/C, C3/CMULTI

Part

Number

Description Used on Model(s)

3 T0529 INTERLOCK ACTUATOR BRACKET 3 C0529-2 INTERLOCK ACTUATOR BRACKET C3/C, C3/CMULTI 4 T0534 INTERLOCK SWITCH BRACKET C3/AB, C3MULTI 4 C0534 INTERLOCK SWITCH BRACKET C3/C, C3/CMULTI 5 T0330 INTERLOCK SECONDARY SWITCH 5 C0330 INTERLOCK MONITOR SWITCH C3/C, C3/CMULTI 6 C0330 INTERLOCK PRIMARY SWITCH C3/C, C3/CMULTI

7 T0516

7 C0516

8 T0542 SPRING, TRAILING ARM C3/AB, C3MULTI 8 C0542 SPRING, TRAILING ARM C3/C, C3/CMULTI 9 T0535 DOOR SPRING BRACKET C3/AB, C3MULTI

DOOR HINGE BAR MOUNTING

BRACKET

DOOR HINGE BAR MOUNTING

BRACKET BRACKET

C3/AB, C3MULTI

C3/C, C3/CMULTI

9 C0535 DOOR SPRING BRACKET C3/C, C3/CMULTI 10 TC3-0186 BRACKET, SPRING, LEFT C3/AB, C3MULTI 10 C0186 BRACKET, SPRING, LEFT C3/C, C3/CMULTI 11 1014501 10-32 X 3/8 PPH CRES C3/AB, C3MULTI

11 TBD M5 X 10 mm C3/C, C3/CMULTI

DOOR REMOVAL AND REPLACEMENT PARTS LIST (LEFT SIDE) CON’T

4 - 20

Page 39

See Figure 4-7a.

Electrical Compartment

ITEM

12 T0514 CAM FOLLOWER ASSY C3/AB, C3MULTI 12 C0514 CAM FOLLOWER ASSY C3/C, C3/CMULTI 13 T0541 CAM FOLLOWER ROLLER C3/AB, C3MULTI 13 C0541 CAM FOLLOWER ROLLER C3/C, C3/CMULTI 14 T0548 GUIDE BLOCK C3/AB, C3MULTI 14 C0548 GUIDE BLOCK C3/C, C3/CMULTI 15 TC3-0179 HELPER SPRING C3/AB, C3MULTI

15 C0708 HELPER SPRING C3/C, C3/CMULTI

Part

Number

Description Used on Model(s)

4 - 21

Page 40

TurboChef Technologies, Inc. C Series

6 7

K6K3K2

DOOR REMOVAL AND REPLACEMENT (RIGHT SIDE)

1. TRAILING ARM

2. INTERLOCK ACTUATOR BRACKET

3. INTERLOCK SECONDARY SWITCH

4. INTERLOCK SWITCH BRACKET

5. SPRING, TRAILING ARM

6. CAM FOLLOWER ROLLER

7. CAM FOLLOWER ASSY

8. HELPER SPRING

FIGURE 4 – 7b Door Removal and Replacement (Right Side)

K4 K5

4 - 22

Page 41

Electrical Compartment

DOOR REMOVAL AND REPLACEMENT PARTS LIST (RIGHT SIDE): See Figure 4-7b

ITEM

1 T0550 TRAILING ARM, RH C3/AB, C3MULTI 1 C0550 TRAILING ARM, RH C3/C, C3/CMULTI 2 T0529 INTERLOCK ACTUATOR BRACKET 2 C0529-1 INTERLOCK ACTUATOR BRACKET C3/C, C3/CMULTI 3 T0330 INTERLOCK MONITOR SWITCH C3/AB, C3MULTI 3 T0330 INTERLOCK PRIMARY SWITCH C3/AB, C3MULTI 3 T0330 INTERLOCK SECONDARY SWITCH 4 C0534 INTERLOCK SWITCH BRACKET C3/C, C3/CMULTI

4 T0534

5 T0542 SPRING, TRAILING ARM C3/AB, C3MULTI

Part

Number

Description Used on Model(s)

INTERLOCK MONITOR SWITCH

BRACKET

INTERLOCK PRIMARY SWITCH

BRACKET

C3/AB, C3MULTI

C3/C, C3/CMULTI

C3/AB, C3MULTI

5 C0542 SPRING, TRAILING ARM C3/C, C3/CMULTI 6 T0514 CAM FOLLOWER ASSY C3/AB, C3MULTI 6 C0514 CAM FOLLOWER ASSY C3/C, C3/CMULTI 7 T0541 CAM FOLLOWER ROLLER C3/AB, C3MULTI 7 C0541 CAM FOLLOWER ROLLER C3/C, C3/CMULTI 8 TC3-0179 HELPER SPRING C3/AB, C3MULTI

8 C0708 HELPER SPRING C3/C, C3/CMULTI N/S T0548 GUIDE BLOCK C3/AB, C3MULTI N/S C0548 GUIDE BLOCK C3/C, C3/CMULTI N/S T0538 TRAILING ARM GUIDE C3/AB, C3MULTI

N/S C0538 TRAILING ARM GUIDE C3/C, C3/CMULTI

4 - 23

Page 42

TurboChef Technologies, Inc. C Series

CONVECTION MOTOR ASSEMBLY

1. SHUNT, DOOR

2. SEAL, ENVIRONMENTAL

3. SHUNT, SUPPORT, SHIM

4. SCREW, M4 X 12MM SS

5. COVER, DOOR PLASTIC

6. SHUNT SUPPORT DOOR

7. WASHER, M4 SS

8. WASHER, LOCK, M4 SS

9. NUT, M4 SS

10. DOOR INSULATION

11. TBD

12. HANDLE COOK CHAMBER

13. SCREW, M4 X 12MM SS

14. SPACER, DOOR HANDLE

15. ASSY, ARM RH

16. WASHER, M4 SS

Figure 4-8: C3/C and C3/CMulti Door Assembly

27 28

17. WASHER, LOCK M6 SS

18. BOLT, M6 X 20 MM SS

19. ASSY, ARM. LH

20. ASSY, PIN

21. WASHER, NYLON

22. ASSY BEARING BLOCK

23. PLATE, DOOR REINFORCING

24. SCREW, M4 X 16 MM SS

25. OUTER DOOR SKIN

26. TURBOCHEF NAME PLATE, AL

27. N/A

28. N/A

29. N/A

30. ASSY GUIDE BLOCK

21 22

25 26

4 - 24

Page 43

Electrical Compartment

C3/C AND C3/CMULTI DOOR ASSEMBLY PARTS: See Figure 4-8

Item

1 C0190 SHUNT, DOOR C3/C & C3/CMULTI 2 C0325 SEAL, ENVIRONMENTAL C3/C & C3/CMULTI 3 C0427 SHUNT, SUPPORT, SHIM C3/C & C3/CMULTI 4 N/A SCREW, M4 X 12 MM SS C3/C & C3/CMULTI 5 C0254 COVER, DOOR PLASTIC C3/C & C3/CMULTI 6 C0426 SHUNT SUPPORT DOOR C3/C & C3/CMULTI 7 N/A WAHSER, M4 SS C3/C & C3/CMULTI 8 N/A WASHER, LOCK, M4 SS C3/C & C3/CMULTI

9 N/A NUT M4 SS C3/C & C3/CMULTI 10 C0575 DOOR INSULATION C3/C & C3/CMULTI 11 C0431 DOOR INSULATION C3/C & C3/CMULTI 12 C0267 HANDLE COOK CHAMBER C3/C & C3/CMULTI 13 N/A SCREW, M4 X 12 MM SS C3/C & C3/CMULTI 14 C0350 SPACER, DOOR HANDLE C3/C & C3/CMULTI 15 C0500 ASSY, ARM RH C3/C & C3/CMULTI 16 N/A WASHER, M4 SS C3/C & C3/CMULTI 17 N/A WASHER, LOCK M6 SS C3/C & C3/CMULTI 18 N/A BOLT, M6 X 20 MM SS C3/C & C3/CMULTI 19 C0550 ASSY, ARM, LH C3/C & C3/CMULTI 20 C0503 ASSY, PIN C3/C & C3/CMULTI

21 C0504 WASHER, NYLON C3/C & C3/CMULTI

Part

Number

Description Used on Model(s)

4 - 25

Page 44

TurboChef Technologies, Inc. C Series

C3/C AND C3/CMULTI DOOR ASSEMBLY PARTS (CON’T): See Figure 4-8

Item

22 C508 ASSY BEARING BLOCK C3/C & C3/CMULTI 23 C0507 PLATE, DOOR REINFORCING C3/C & C3/CMULTI 24 N/A SCREW, M4 X 16 MM SS C3/C & C3/CMULTI 25 C0193 OUTER DOOR SKIN C3/C & C3/CMULTI 26 C0581 TURBOCHEF NAME PLATE, Al C3/C & C3/CMULTI

30 C0514 ASSY GUIDE BLOCK C3/C & C3/CMULTI

Part

Number

Description Used on Model(s)

4 - 26

Page 45

Electrical Compartment

Figure 4-9: C3/AB and C3Multi Door Assembly

4 - 27

Page 46

C3/AB and C3/Multi

3/AB and C3/Multi

C3/AB and C3/Multi

T0505

C3/AB and C3/Multi

TurboChef Technologies, Inc. C Series

C3/AB AND C3MULTI DOOR ASSEMBLY PARTS: See Figure 4-9

Item

6 T0190 SHUNT, DOOR 7 T0254 PLSTIC COVER, DOOR 8 T0426 SHUNT SUPPORT DOOR

9 T0193 OUTER SKIN, DOOR 10 T0507 PLATE, DOOR REINFORCING 11 T0325 GASKET, SHUNT 12 M0999 SCREW, #8-32 X 3/8 SS 13 R7329 SCREW, TAPPING, #8-32 X ½ SS

Part

Number

Description Used on Model(s)

C3/AB and C3/Multi

14 C0581 NAMEPLATE 15 NA NA 16 T0360 INSULATION KIT 17 T0267 HANDLE, DOOR 18 3136 SCREW, CAP ¼ - 20 X .75 HEX SS 19 M0417 WASHER, LOCK 20 T0450 WAHSER, FENDER 21 T0350 SPACER 22 T0508 BEARING AND BLOCK ASSY 23 T0503 PIVOT PIN AND BRACKET ASSY 24 T0427 SHUNT, SUPPORT SHIM 25 T0504 WASHER, NYLON 5/16 26 27 T0514 BLOCK ASY, PIVOT, TRAILING ARM C3/AB and C3/Multi

SCREW, #8-32 X .88 PAN HD SS

28 T0558 SCREW, #8-32 X .38 FLAT HD SS C3/AB and C3/Multi 29 T0550 TRAILING ARM, ASSY LH C3/AB and C3/Multi

30 T0500 TRAILING ARM ASSY RH C3/AB and C3/Multi

4 - 28

Page 47

Electrical Compartment

FIGURE 4 – 11a C3/AB Schematic

4 - 29

Page 48

TurboChef Technologies, Inc. C Series

FIGURE 4 – 11b C3/C Schematic

4 - 30

Page 49

Electrical Compartment

FIGURE 4 – 11c C3Multi Schematic

4 - 31

Page 50

TurboChef Technologies, Inc. C Series

CATALYTIC CONVERTER

The catalytic converter (See Figure 5-1) is installed in the return air duct behind the heater assembly. The installation of the catalytic converter requires a catalytic converter inner frame to properly position it in the air path. The above parts may be ordered in kit form.

Due to the nature of most foods and the physics governing the operation of the C3 SERIES oven, grease buildup downstream of the cooking chamber is inevitable. Strict cleaning regiments can solve a majority of the problems, however, recirculation of undiluted greasy saturated air is the main cause of downstream grease accumulation and any associated residual flavors.

The airborne grease tends to collect and bake onto the oven surface downstream of the cooking chamber. This grease, due to the high operating temperatures of the oven, will start to rapidly decompose into derivative organic compounds.

These decompositional derivatives generally have positive and negative effects on cooking; the shorter chain derivatives add favorable flavor characteristics to the food, while the higher order carbon chains lend unpleasant flavor characteristics, such as bitter tarry tastes.

The installation of the catalytic converter greatly effects the grease handling and any residual flavors which might build up over time. A properly operating catalytic converter causes the conversion of airborne grease into water, carbon

dioxide and small amounts of nitrogen and oxygen. The catalytic converter acts as a combustion chamber for the airborne grease. The catalysts present on the filter lowers the ignition temperature of the airborne grease from approximately 700ºF (371ºC) to 450–550ºF (232– 288ºC), allowing combustion to occur. The operating temperature of the oven directly determines the percentage of airborne grease conversion. A single pass of the air stream yields a 20–30% improvement in air quality.

A problem with the catalytic converter is indicated by a decrease in the effectiveness of browning (caused by a reduction in airflow) or by flavor transfer from one food group to another.

If you suspect the catalytic converter needs cleaning refer to figures on page 5-3 and below. These diagrams provide you with a location reference and exploded view (Note: The Return Air Duct Assembly Panel and the Terminal Heat Shield may be inverted on some C3/AB units. All C3/C units will have this assembly inverted). It is important to carefully remove the insulation and replace it neatly. The metal foil helps shield microwave emissions.

IMPORTANT NOTE:

The catalytic converter can be cleaned with TurboCare→ oven cleaner and thoroughly rinsed with DISTILLED water. Let the catalytic converter air dry before reinstalling. IF TurboCare oven cleaner is not available DO NOT SUBSTITUTEUSE DISTILLED WATER.

5 - 2

Page 51

CONVECTION ELEMENT AND THERMOCOUPLES

The convection element (See Figure 5-1) is located in the rear back on the left side of the oven. It is controlled by one or two solid-state relays (K5 and K7), depending on model, located in the top, center of the control compartment of the oven. Each relay coil operates on 24VDC which is supplied from the I/O control circuit assembly. The temperature is referenced by two “K” type thermocouples.

• The HX thermocouple is in the rear of the oven by the catalytic converter.

• The CC thermocouple is located on the top left side of the oven near the front by the door.

To test the operation of the convection circuit, run the oven in the test mode. See page 3-3 for Self Test information. The element will not energize if the convection motor is not running. You will have to troubleshoot the convection motor and its controller before continuing.

IMPORTANT HEATER DISCUSSION

The C series oven uses either an open coil or sheathed heater. The open coil element is obsolete, but may still be found in C3/AB ovens and C3/C ovens. This heater is susceptible to cleaners not approved by TurboChef. If this heater fails, it should be replaced by the newer sheathed heater (See Figure 5-3).

The sheathed heater consists of two individual heating elements encased within one sheath; therefore, when replacing the single–phase open coil heater with this unit on the C3/AB or C3/C you must wire the individual heaters in parallel (See Figure 5-4). When wired correctly the total resistance should be 12 ohms @ 240VAC (20 Amp draw). At 208 VAC the total resistance should be 9 ohms (23 amps draw).

On the C3/AB and C3/C, only, one of the heater wires to the hot air element is looped through an inductance coil transformer on the I/O control circuit assembly. It must draw a minimum current of 7.5 amps to satisfy the circuit. If it does not, the “H” status character on the Test Mode display will be a reversed character.

If a thermocouple is open, the temperature will read 999. The thermocouples are held in place with a compression fitting using a lava gland.

Before replacing a thermocouple, inspect the 40 pin connector where the thermocouples plug into

Convection Circuit

the I/O control circuit assembly. It is possible you just have a loose connection. Try unplugging and reconnecting the 40 pin connector. When replacing a defective thermocouple, it is important to reinstall the new thermocouple so it protrudes a specific distance inside the oven cavity. See FIGURE 5-2.

Replace the thermocouple as follows:

1. Make a note where the old thermocouple exited the compression fitting.

2. Measure the distance from the exit point to the end of the thermocouple.

3. Mark this distance on your new thermocouple with a marker or a piece of tape.

4. Install the new thermocouple

5 - 3

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TurboChef Technologies, Inc. C Series

Air Duct Panel (with element)

Remove and reinstall insulation carefully to eliminate mi crowave emmissions

FIGURE 5 - 2 Thermocouple & Thermostat Locations

HEATER ASSEMBLY (SEE FIG 5-3) FOR ALL OPTIONS

FIGURE 5 - 1 Catalytic Converter Access

Thermocouple

INNER

CATALYTIC CONVERTER

HEATER BAFFLE (C3/AB

AND C3/C ONLY)

BRACKET

Thermocouple

Rear View

High Limit

Thermostat

5-4

Page 53

CONVECTION ELEMENT ASSEMBLIES

SHEATHED HEATER ASSEMBLY ALL MODELS

1. GASKET, 3PHASE HEATER COVER

2. PLATE, SHEATHED HEATER

3. SHEATHED HEATER

4. WASHER, FLAT, HEATER, 5/8

5. WASHER, FIBER, 5/8

6. NUT, 5/8-18 CRES

FGURE 5 - 3 Convection Heater Assemblies

6 5 4

OPEN COIL HEATER ASSEMBLY MODELS C3, C3/AB AND C3/C (OBSELETE)

7. PLATE, C3 HEATER MOUNTING

8. GASKET, 3PHASE, HEATER COVER

9. HEATER ELEMENT, OPEN COIL

10. WAHER, SPLIT LOCK 8-32 (C3, C3/AB ONLY), M4 (C3/C)

11. SCREW, #8-32 X .38 PPHD, CRES (C3, C3/AB ONLY), M4 X 10 (C3/C)

Convection Circuit

11 10

5 - 5

Page 54

H1 = 24 OHMS @ 240, 18 OHMS @ 208 VAC

HT = 12 OHMS @ 240, 18 OHMS @ 208 VAC

TurboChef Technologies, Inc. C Series

SHEATHED HEATER DETAILS

1. SHEATHED HEATER

2. H1 LEAD

3. H2 LEAD

4. BUTT-SPLICE

5. WIRE TO SOURCE

NOTES:

H2 = 24 OHMS @ 240, 18 OHMS @ 208 VAC

FIGURE 5 - 4 Sheathed Heater Wiring Diagram for C3/AB and C3/C

Single Phase Ovens

5 - 6

Page 55

PEPPERONI CATCHER (EXPANDED METAL) MUST

CONVECTION CIRCUIT PARTS LIST: See Figure 5-3

Convection Circuit

Item

1 TC3-0194 GASKET, 3 PHASE, HEATER COVER All 2 TC3-0202 PLATE, SHEATHED HEATER All 3 100652 240 VAC SHEATHED HEATER All (240 VAC) 3 100663 208 VAC SHEATHED HEATER All (208 VAC) 3 100664 200 VAC SHEATHED HEATER All (200 VAC)

4,5,6 NA

7 TC3-0192 PLATE, C3 HEATER MOUTING (OBSELETE) C3/AB, C3/C 8 TC3-0194 GASKET, 3 PHASE HEATER COVER All 9 100665 240 VAC HEATER ELEMENT, OPEN COIL (OBSELETE) C3/AB, C3/C

9 100666 208 VAC HEATER ELEMENT, OPEN COIL (OBSELETE) C3/AB, C3/C 10 102390 WASHER, SPLIT LOCK, #8 CRES C3/AB 10 102230 WASHER, SPLIT LOCK, M4 C3/C

Part

Number

Description Used on Model(s)

SHEATHED HEATER HARDWARE (SUPPLIED

W/HEATER)

All

11 101665 SCREW, #8-32 PPHD, CRES C3/AB 11 101671 SCREW, M4 X 10 mm C3/C 12 T0185 CATALYTIC CONVERTER All 13 100440 BLOWER MOTOR SPEED CONTROLLER All 14 T0204 PEPPERONI CATCHER (SMALL HOLE) C3/AB, C3/C

15 TC3-0197A

ONLY BE USED WITH SHEATHED HEATER ASSY

All

Note: When upgrading to a new sheathed heater, please order the following items, 1, 2, 3 (specify voltage), 15.

5 - 7

Page 56

2 3 4 5 6 7 8 9 10 11 12

230 VAC

GND RED BRN BLK

200 to 240 VAC

GND WHT BLK GND RED BLU WHT

2.6 ohms

2 = +10VDC

3 = Function Loss/Reset

4 = Forward Run

7 = 0 to 10VDC

9 = Common

11 = Relay Common

12 = NO Relay Contact

TurboChef Technologies, Inc. C Series

CONVECTION (BLOWER) MOTOR OPERATION

OVERVIEW

The convection (blower) motor is a variable speed convection motor which operates from zero rpms up to 7000 rpms. The blower motor speed is controlled by a SP200 AC drive control. This controller converts the 200V to 240V single phase input to a variable 3 phase output (230/460VAC). The speed is controlled by low voltage inputs (0 to 10 VDC) which are applied to pin #7 on the SP200 AC drive control from the control circuit card. If the convection (blower)

If the convection (blower) motor is not running:

1. Verify the plug connector on the top two pins on terminal P3, on the control circuit board is in place. See page 6-7.

2. Inspect the SP200 AC drive motor control. The SP200 AC drive motor has a single LED.

Terminal Block Connections

Winding Resistance

For MAC motor is

MAC MOTOR

motor is replaced, carefully remove and reinstall the insulation to eliminate microwave emissions. You must remove the entire motor assembly with the blower wheel to perform any work on either item.

TROUBLESHOOTING

To run the convection (blower) motor independently, you need to operate the C3 SERIES in the TEST mode. See page 3-3 to enter TEST mode.

3. If the LED is green, the controller is operating properly and has the correct inputs.

4. If the LED is flashing red, count the number of times the LED flashes before it repeats its flashing sequence. Refer to the fault code Table 5-2 on pages 5-6 & 5-7.

5. The operating parameters of the SP200 AC drive control are preprogrammed into the control. Refer to FIGURE 5-5 to verify voltages and wiring.

W-15 jumper

Power In

Output

5 - 8

FIGURE 5 - 5 SP200 Wiring

Page 57

Convection Circuit

Blower Motor Controller Fault Codes & Troubleshooting

NOTE: If no fault condition exists, the LED will be green. If a fault condition exists, the LED will flash

redhen a local keypad is not connected. All faults can be reset by cycling the reset control input, pressing the stop key, or cycling power, except as noted in the Corrective Action column below.

NOTE: To recycle power, disconnect power for a full minute, or until the LED extinguishes, before reapplying power.

# of

LED

Flashes

2 Control Input

2 Function Loss

3 Under Voltage

4 Over Voltage

5 Drive Overload 5 Motor Overload

6 Over Temperature

7 Over Current

8 Bad Keypad

9 Negative Slope

Fault

Description

(300%)

Connection

Fault Cause

• Illegal control input sequence • 3–wire: Verify Start and Jog inputs are not both ON

• 2–wire: Verify that only one input (Forward, Reverse, or Jog) is ON

• Start attempt while STOP (function loss) input is off

• Low input line

• Temporary loss of input line

• High input line

• Decel time too fast

• Overhauling load

• Excessive driven load • Reduce the load

• Excessive driven load • Verify P-02 is set correctly

• Operating environment is too hot

• Fan is blocked or not operating

• Excessive driven load

• Shaft rotation blocked

• Excessive driven load

• Output wiring is incorrect or

shorted

• Bad connection from keypad to drive

• Conflicting parameter values • Adjust values of parameters P–50

• Verify STOP (function loss) input

is ON before attempting to start drive.

• Check input line to verify voltage is within operating specifications

• Increase decel time

• Reduce the load.

• Check for mechanical binding

• Verify the ambient temperature is

<50ºC

• Verify clearance above/below drive

• Check for fan obstruction. Replace if necessary

• Reduce the carrier frequency (P–

64)

• Reduce the load

• Check for obstructions to shaft

rotation or reduce excessive load

• Increase accel/decel time

• Verify output wiring is correct

• Verify keypad is properly

connected to drive

through P–54

Corrective Action

5 - 9

Page 58

TurboChef Technologies, Inc. C Series

# of

LED

Flashes

Phase to Phase

Checksum Failure

12 Microprocessor

Fault

Description

Ground Short

Short

Fault

Fault Cause

• Phase U

• Phase V

• Phase W

• Phase U-V

• Phase U-W

• Phase V-W

• Parameter value out of range • Load default parameter values (P–

• Internal processor error • Cycle power. If fault persists,

Corrective Action

• Verify output wiring is correct

• Verify output phase is not

grounded

• Verify motor is not damaged

• Verify output wiring is correct

• Verify motor is not damaged

60=1), then cycle power. If fault persists, replace drive.

replace drive.

TABLE 5 - 2 Blower Motor Controller Fault Codes & Troubleshooting

5 - 10

Page 59

Convection Circuit

5 3 7 8 9

5 4

CONVECTION MOTOR ASSEMBLY

1. MOTOR, 1 HP

2. SPACER, BLOWER MOUNT

3. CAP, BLOWER

4. RING, FAN BLADE

5. FAN BLADE

6. HUB, FAN SMALL

Figure 5-6: Convection Motor Detail

0.150 MAX FAN BLADE TO CAP

0.52 MIN HEAT SLINGER TO PLATE

7. CLAMP, BEARING SPRING

8. BLOCK, BLOWER BEARING SEAL

9. SPRING, COMPRESSION

10. HEAT SLINGER

11. SET SCREW (USE LOCTITE 290)

12. #605 WOODRUFF KEY

5 - 11

Page 60

TurboChef Technologies, Inc. C Series

CONVECTION MOTOR PARTS LIST: See Figure 5-6

Item

1 T0076 Motor, 1HP, Mac All 4 T06050070 RING FAN (unwelded) All 5 T06050069 BLADE, FAN (unwelded) All

4&5 TC3-0214 RING AND FAN TACK WELDED All

6 T7000306-2 HUB, FAN SMALL C3/AB & C3MULTI

6 C7000306-2 HUB, FAN SMALL C3/C & C3/CMULTI

7 T7001179 CLAMP BEARING SPRING All

8 T700-1177 BLOCK, BLOWER BEARING SEAL All

9 T101733 SRING, COMPRESSION All

10 T102708 HEAT SLINGER All

11 T101715 SET SCREW #8 X 5/16 SS C3/AB & C3MULTI

Part

Number

Description Used on Model(s)

11 TBD SET SCREW M4X6 SS C3/C C3/CMULTI

12 T100730 #605 WOODRUFF KEY All

5 - 12

Page 61

TurboChef Technologies, Inc. C Series

MEASURING FOR MICROWAVE RADIATION LEAKAGE

The following RF emissions test must be performed every time a service call is done on a C3 SERIES oven. Report your findings on the work order.

The following areas must be measured when performing the RF test.

• Cook Door

• At any place on the outside of the oven (with

all covers in place).

Check for microwave leakage as follows:

1. Remove front bottom trim piece.

2. Place a load in the oven for testing. The load must meet the following specifications:

A) Load must be 275 ml +/- 15 ml of water. B) The water should be 77± 5ºF (25± 3ºC). C) The container must be a low form, 600 ml

beaker with an inside diameter of approximately 3.35” (8.5cm) and made of an electrically non–conductive material such as glass or plastic.

3. Enter the TEST mode. Refer to page 3-3 for instructions for accessing TEST mode.

4. Position the door leak test tool on the door handle. See FIGURE 6-1 for correct positioning of the leak test tool.

5. Tighten the top screw to slowly open the door. Stop when the control panel indicates that the door switch has disengaged.

6. Loosen the top screw slowly until the control panel indicates that the door switch has engaged.

7. Test for microwave leakage as follows: This test must be done in conformance with 21

CFR, Chapter 1, Part 1030-Performance Standard for Microwave and Radio Frequency Emitting Product. Part 1030.10 Microwave Ovens. (C) Requirements - (1) Power Density Limit. “The equivalent plane wave power

density existing in the proximity of the external oven surface shall not exceed 1 milliwatt per square centimeter at any point 5 cm or more from the external surface of the oven, measured prior to acquisition by purchaser, and thereafter, 5 milliwatt per square centimeter at any point.”

A) The tip of the probe should be touching

the oven surface being measured with the probe handle perpendicular to the surface.

B) Move the probe counterclockwise around

the perimeter of the door starting from the upper right corner at a speed of less than

0.5” per second. Be sure to probe entire door perimeter, returning to the upper right corner.

8. Exit the diagnostic mode.

9. Repeat STEPS 2 and 7 with the cook door closed.

WARNING!!

If the unit fails the radiation test, the oven must be taken out of service immediately until the defect is corrected. In addition, the Code of Federal Regulations 21 Subpart C, 1002.20 requires that leakage readings of over 5 mW/cm2 MUST be reported to the manufacturer.

10.

FIGURE 6 - 1 Microwave Leakage Testing

Door Leak Test Too

6 - 2

Page 62

-(C)

OUTPUT VOLTAGE

+-+

2400

+--+2400

2400

VDC

4800

VDC

+(B)

(A)

- 4800 V

POSITIVE VOLTAGE SWING

ON NEGATIVE VOLTAGE SWING

+2400 V

-2400 V

(A)

MAGNETRON CIRCUIT

Microwave Circuit

Overview of a microwave circuit

The microwave circuit consists of a magnetron and a voltage doubler circuit. The voltage doubler consists of a special step–up transformer, a capacitor, and a diode. See figure 6-2 for an explanation of how the doubler works.

The magnetron transformer is a ferro-resonant design which limits fault currents and minimizes

TRANSFORMER

+(B)

magnetron power changes due to input voltage changes. An automatic resetting overtemperature switch is embedded in the high voltage secondary winding and removes power form the primary winding if an over-temperature condition occurs.

In the C3 SERIES a separate transformer is used to preheat the filament for the magnetron for better operation.

MAGNETRON VOLTAGE

(C)

2400 VDC

Current

CAPACITOR CHARGES ON

CHARGED CAPACITOR PLUS TRANSFORMER

Current

1. The Magnetron Transformer steps up the input voltage to approximately 2400 volts peak (4800 volts peak to peak).

2. The High Voltage Capacitor charges to 2400 volts on the positive going voltage via the High Voltage Diode’s forward conduction.

3. The Magnetron Transformer plus the charged High Voltage supply up to - 4800 volts to the Magnetron on the negative going voltage (High Voltage Diode is back biased).

4. The Magnetron converts the negative input voltage (and Current) to RF energy at 2450 MHz with approximately 60% efficiency.

WARNING: DO NOT ATTEMPT TO MEASURE THESE VOLTAGES

FIGURE 6 - 2 Magnetron High Voltage Power Supply

6 - 3

Page 63

TurboChef Technologies, Inc. C Series

MAGNETRON TESTING

Checking a Magnetron for Open or Shorted

WARNING!!

The microwave circuit cannot be worked on with the unit on. The unit must be disconnected from the power source. Failure to do so could result in injury or death.

WARNING!!

The HV Capacitor must be discharged before proceeding.

MAGNETRON REMOVAL AND REPLACEMENT

1. Remove door hinge bar support angle.

2. Remove magnetron cooling fan, duct work and magnetron as an assembly.

3. Unplug and remove magnetron.

Filaments:

1. Disconnect the AC power source and discharge the High Voltage Capacitors.

2. Isolate the magnetron from the circuit by removing the wires from the F and FA terminals.

3. An ohmmeter connected between the filament terminals (F, FA) should indicate a reading of less than 1 Ohm.

4. A continuity check between either filament terminal and the magnetron chassis should indicate an infinite resistance (open).

4. Install new magnetron.

5. Check the oven for microwave leakage. Refer to page 6-1 for instructions.

Door

See View A

FIGURE 6 - 3 Magnetron Removal and Replacement

6 - 4

Hinge Bar

Support Angle

View A

Magnetron

Magnetron Cooling Fan

Page 64

COMPONENT TESTING

Microwave Circuit

WARNING!!

The microwave circuit cannot be serviced with the unit on. The unit must be disconnected from the power source. Failure to do so could result in injury or death.

WARNING!!

The HV Capacitor must be discharged before proceeding.

TRANSFORMER TESTING

1. Disconnect the power source and discharge the capacitor.

2. Isolate the transformer from the circuit. (Wires are labeled but remember where they go)

3. Check impedance of the primary and secondary windings. See TABLE 6-1 AND FIGURE 6-4.

4. Filament winding should read less than 0.1 ohms.

5. Reconnect wires.

WARNING!!

Do not attempt to measure the magnetron anode or filament voltages. Failure to do so could result in injury or death.

TRANSFORMER SPECIFICATIONS

Main Transformer (Anode) Filament Transformer

Primary DCR 0.58 Ohm. Primary DCR (1-2) 23.2 Ohm

Secondary DCR: (5-6) 46.39 Ohm

(5-7) 54.00 Ohm Input Voltage : 208-240 VAC, 50/60 HZ Input Voltage : 200-208/240 ± 10%, 50/60 HZ Input Current: 9.0 Amps RMS Input Current: 0.42 Amps @ 208 VAC

Anode Voltage: 2400 VDC Peak @ 0.83 Amps Filament Voltage: 4.6 VAC @ 14 Amps

Secondary DCR: (4-5) .020 Ohm

WARNING!!

When replacing the anode transformer, remove the varnish around the mounting holes to insure proper grounding.

(1-3) 27.8 Ohm

0.35 Amps @ 240 VAC

TABLE 6 - 1 Transformer Specifications

DIODE TESTING

WARNING!!

DO NOT attempt to measure HV directly.

1. Isolate diode from circuit.

2. Connect the meter leads to the diode terminals.

3. Resistance readings (open) should be indicated in the reverse direction.

4. Resistance readings in the forward direction may be indeterminate due to the number of diodes in series making up this assembly.

5. If there is continuity in both directions (shorted diode).

6 - 5

CAPACITOR TESTING

1. Disconnect the oven from the power source.

2. Isolate the capacitor from the circuit.

3. Fully discharge the capacitor.

4. Connect the ohmmeter between the capacitor terminals. The meter should indicate a low impedance and then slowly return to infinite resistance.

5. Reverse the ohmmeter leads. Repeat step 4.

6. Check each terminal to case. Infinite resistance (open) should be indicated.

Page 65

TurboChef Technologies, Inc. C Series

WARNING!!

Use extreme caution when taking any current readings. Failure to do so can result in death or serious injury.

(1-3) 240 VAC

27.8 OHMS

(1-2) 200-208 VAC

23.2 OHMS

FILAMENT TRANSFORMER

4 5

REAR VIEW

FRONT VIEW

(4-5) 4.6 VAC SECONDARY

0.20 OHMS

T2 FILAMENT TRANSFORMER

240 VAC

200-208 VAC

PRIMARY COMMON

3 2

T1 ANODE TRANSFORMER

INPUT

PRIMARY COMMON

3 4

6 5

UNUSED

WINDING 50 HZ7

60 HZ

1.05 uF (60 HZ)

1.20 uF (50 HZ) HV CAPACITOR

820MW3 ANODE TRANSFORMER

50 HZ 60 HZ

REAR VIEW

HV ANODE WINDING (SECONDARY) (5-6) 60 HZ 46.39 OHMS (5-7) 50 HZ 54.00 OHMS

FA208-240 VAC

15 KV HV DIODE

MAGNETRON

4500 VPK, 415 MA

(3-4) UNUSED

FILAMENT

WINDING

(1-2) 208-240 VAC

0.58 OHMS

FIGURE 6 - 4 Transformer Testing

6 - 6

TRANSFORMERS.DWG

Page 66

CONTROL CIRCUIT BOARD

NOTE: This procedure must be done after

replacement of the controller board.

1. Place the oven in the test function mode as follows:

A) From the standby mode, press and hold

both BACK and ENTER keys simultaneously.

B) The display reads:

ENTER ACCESS CODE

C) Use the NUMERIC keypad to enter the

following access code:

9428

D) Press the ENTER key.

2. Place a microwave dish with approximately 9.3 oz. (275 ml) of cool water in the oven.

Microwave Circuit

3. Press and hold the MGTRON key. Observe the reading on the keypad display. Adjust the amplifier gain on R24 on I/O controller board. Refer to FIGURE 5. Turn the screw clockwise to reduce the output until the maximum reading is 120 ± 20.

NOTE: The displayed reading varies greatly

due to the stirrer blade motion. Observe the reading for at least 10 seconds.

4. Press and hold the MAGTRON key. Observe the oven keypad display. Verify the number displayed varies corresponding to stir blade motion.

5. The difference between the high and low peak values must be greater than 20.

(On rear) inductance coil magnetron 9 amps

FIGURE 6 - 5 Control Circuit Board

6 - 7

(On rear) inductance coil for HX 20-23 amps

R24

NOTE: Top two pins covered

Amplifier Adjustment Screw

Page 67

TurboChef Technologies, Inc. C Series

Waveguide Components:

Figure 6-6: Waveguide Assy

6 - 8

Page 68

C700

1339

-1

WAVEGUIDE COMPONENTS PARTS LIST: See Figure 6-6

Microwave Circuit

Item

1 T0266 BLADE, STIRRER ALL 2 T0289 SHAFT, STIRRER C3/AB, C3MULTI 2 C0289 SHAFT, STIRRER C3/C, C3/CMULTI 3 T0290 HUB, STIRRER SHAFT C3/AB, C3MULTI 3 C0290 HUB, STIRRER SHAFT C3/C, C3/CMULTI 4 T0282 SPROCKET, STIRRER SHAFT, .125 BORE All 5 T0284 BELT, STIRRER MOTOR All 6 T0397 MOUNTING PLATE, STIR MOTOR C3/AB, C3MULTI 6 C0391 MOUNTING PLATE, STIR MOTOR C3/C, C3/CMULTI 7 T0283 SPROCKET, MOTOR, 4MM BORE All 8 T100891 MOTOR, 6 RPM All 9 101550 SCREW, 4-40 X 5/8 PPH SS C3/AB, C3MULTI 9 TBD SCREW, M3 x 12 mm SS C3/C, C3/CMULTI

Part

Number

Description Used on Model(s)

10 102370 WASHER, SPLIT LOCK #4 SS C3/AB, C3MULTI 10 TBD WASHER, SPLIT LOCK M4 SS C3/C, C3/CMULTI 11 101590 SCREW, 6-32 X 3/8 PPH SS C3/AB, C3MULTI 11 TBD SCREW, M4 x 8 MM SS C3/C, C3/CMULTI 12 102380 WASHER, SPLIT LOCK #6 SS C3/AB, C3MULTI 12 TBD WASHER, SPLIT LOCK M4 C3/C, C3/CMULTI 13 102035 PIN CONNECTOR C3/AB, C3MULTI 14 102716 CONNECTOR HOUSING C3/AB, C3MULTI 15 102270 WASHER, INTERNAL LOCK, #6 SS C3/AB, C3MULTI 15 TBD WASHER, INTERNAL, LOCK, M4 SS C3/C, C3/CMULTI 16 700-1339-1 CLAMP, WAVEGUIDE, SINGLE WIRE C3/AB, C3MULTI 16

CLAMP, WAVEGUIDE, SINGLE WIRE C3/C, C3/CMULTI

6 - 9

Page 69

TurboChef Technologies, Inc. C Series

WAVEGUIDE COMPONENTS PARTS LIST (con’t): See Figure 6-6

Item

17 700-1321 SEAL, RIGN WAVEGUIDE C3/C, C3/CMULTI 18 102650 WAVE, SPRING WASHER All 19 700-1213 PLUG, WAVEGUIDE, QUARTZ All 20 700-1333 SEAL, PLUG TEFLON All NS 100480 HV Diode All NS 100206 HV, Capacitor, 2500 V All NS 102091 Filament Transformer All NS 102093 Magnetron Transformer T1 All

Part

Number

Description Used on Model(s)

6 - 10

TurboChef C3/AB, C3/C, C3Multi, C3/CMulti General Manual

Specifications and Main Features

Frequently Asked Questions

User Manual