advertisement
Service Manual
F O R T H E T U R B O C H E F T O R N A D O
®
A N D T O R N A D O
2
T M
R A P I D C O O K O V E N S
For further information call:
800.90
T U R B O
+1 214.379.6000
Accelerating the World of Cooking
TM
TM
I M P O R T A N T S A F E T Y I N F O R M A T I O N - P L E A S E R E A D F I R S T
W A R N I N G
: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Thoroughly read the installation, operating, and maintenance instructions before installing or servicing this equipment.
This product employs an exposed radiant heating element in the bottom of the cavity. This element is
HOT during operation and will remain at dangerous temperatures after the unit is switched off.
NEVER attempt to touch the element during operation, while the oven is warm, or while the oven is cooling down.
DO NOT store flammable vapors or liquids (such as gasoline) in the vicinity of this or any other appliance.
The information contained in this manual is important for the proper installation, use, and maintenance of this oven. Adherence to these procedures and instructions will result in satisfactory baking results and help prevent maintenance. Please read this manual carefully and retain it for future reference.
Errors - descriptive, typographic, or pictorial - are subject to correction. Specifications are subject to change without notice.
© 2008 TurboChef Technologies, Inc.
Table of Contents
Important Safety Instructions
General Safety Information
Reducing Fire Risk
Precautions to be Observed Before and During Servicing to Avoid Possible
Exposure to Excessive Microwave Energy
Grounding Instructions
Power Cord Replacement
RF Interference Considerations
Chapter 1: Installation, Specifications and Maintenance
Specs and Dimensions
Dimensions
Construction
Standard Features
Certifications
Packaging
Power Supply (Domestic and Intl Electrical Specifications)
Power Input
Delivery and Product Placement
Lifting and Placing the Oven
Built-In Installation
Installation Near Open Heat Source
Oven Restraint Kit
Ventilation Requirements
Setup and Initial Operation
Setup
Stacking
Programming
Initial Power-Up
Maintenance
Chapter 2: Theory of Operation
Theory of Operation
Glossary of Common Operating Terms
Chapter 3: Fault Codes
To View Fault Codes
Fault Code Definitions
Fault Code Table
Chapter 4: The Control System
Control System Schematic
Control System Component Descriptions
Test Mode
Test Function Options
Status Indicators
7
8
11
11
12
13
14
14
15
16 ii ii ii ii i i i
4
4
4
4
4
5
2
3
2
2
4
4
1
1
1
1
1
1
1-2
2
Programming
Oven Options
User Configurable Options - Enable/Disable Codes
User Configurable Options - Access Codes
Control System Panel Parts
Control System Troubleshooting
Chapter 5: The Microwave System
Voltage Doubler Circuit Description
Monitor Circuit Description
Voltage Doubler Theory of Operation
Microwave System Parts
Microwave System Components
Wave Guide Cover Replacement
Wave Guide/Wave Guide Cover Parts
Wave Guide Replacement
High Voltage and Filament Transformer Replacement
Wiring the High Voltage Transformers
Wiring the Filament Transformers
Measuring RF Leakage for Microwave Safety
How to Test Microwave Components
Testing the High Voltage Diode
How to Check a Diode
How to Check a Capacitor
How to Check a Magnetron for Open/Shorted Filament
How to Check a High Voltage Transformer or Filament Transformer
High Voltage and Filament Transformer Resistance Table
Microwave System Troubleshooting
Chapter 6: The Oven Door
Removing/Reinstalling the Oven Door
Oven Door Parts
Adjusting the Oven Door
Preparing the Oven for Switch Adjustment
Oven Burn-In Procedure
Adjusting the Primary and Secondary Interlock Switches - Old Switch Setup 38
Primary and Secondary Interlock Switch Adjustments and Parts 39
Door Switch Assembly and Parts
Adjusting the Monitor Safety Switch - Old Switch Setup
40
40
37
37
38
38
38
Monitor Safety Switch Parts
Adjusting the Primary Interlock Switch - New Switch Setup
Primary Switch Adjustment and Parts
Adjusting the Secondary and Monitor Interlock Switches - New Switch Setup 43
Secondary and Monitor Safety Switch Parts 43
Oven Door Assembly
Oven Door Parts
44
44
Screw Torque Chart
Interlock Switch Troubleshooting
40
42
42
45
46
32
32
32
30
30
31
31
33
33
33
33
34
26
28
29
30
30
25
25
26
16
18
19
19
20
21
Chapter 7: The Convection Circuit
Convection Circuit Components
Convection Circuit/Blower Motor Parts
Convection Circuit Troubleshooting
Motor Winding Resistances Table
Chapter 8: IR Element and Catalytic Converter
Components
IR Element and Catalyst Removal
Removing the IR Element
Removing & Installing the Catalytic Converter
Installing a New IR Element
IR Element and Catalytic Converter Parts
Chapter 9: Schematics and Schematic Components
Schematic Parts
Line Voltage Components
Low Voltage Components
Wire Harness Replacement P/N’s
I/O Control Board Item Identification and Test Point Locations
Schematic - I/O Board
Oven Schematics
53
53
53
53
53
54
55 - 63
Chapter 10: Service Parts and Illustrations
Figure 7: NGC (Tornado) Control System
Figure 17: Control System Panel Enclosure and Parts
Figure 18: Monitor Circuit - Shown in Failsafe State
Figure 20: Microwave System Parts
Figure 21: Microwave System Parts
Figure 22: Wave Guide Cover/Wave Guide Removal and Replacement
Figure 24 & 25: High Voltage Diode and Magnetron
Figure 26: Oven Door Removal and Parts 69
Figure 29: Primary and Secondary Adjustment and Parts - Old Switch Setup 70
Figure 30: Door Switch Assembly and Parts 70
Figure 31: Motor Switch Adjustment and Assembly - Old Switch Setup
Figure 32: Primary Interlock Adjustment and Parts - New Switch Setup
71
71
Figure 33 & 34: Secondary and Monitor Adj. and Assy. - New Switch Setup 72
Figure 35: Oven Door Assembly 73
Figure 37: Convection Circuit Block Diagram 74
Figure 38: Convection Circuit Assembly and Parts
Figure 39: IR Element and Catalytic Converter Parts and Assembly
Figure 46: Covers and Miscellaneous Parts - Non-SBK Ovens
Figure 47: Covers and Miscellaneous Parts - SBK Ovens
75
76
77
78
67
68
68
69
65
66
67
Chapter 11: Comprehensive Part List
Comprehensive Part List 79
52
52
52
51
51
51
47
48
49
50
I N T R O D U C T I O N i
I M P O R T A N T S A F E T Y I N S T R U C T I O N S
Strictly adhere to the following safety precautions to reduce the risk of: o
Burns o
Electric shock o o o o
Fire
Injury
Damage to oven or property near oven
Exposure to excessive microwave energy
G E N E R A L S A F E T Y I N F O R M A T I O N o o o o o o
Read all instructions before using the appliance.
Install or locate this appliance only in accordance with the provided installation instructions.
Some products such as whole eggs and sealed containers (e.g., closed glass jars) may explode and should not be heated in this oven.
Use this appliance only for its intended use as described in this manual.
This appliance should be serviced only by qualified service personnel. Contact the nearest authorized service facility for examination, repair, or adjustment.
Keep cord away from heated surfaces.
D O N O T allow children to use this appliance.
D O N O T
D O N O T use corrosive chemicals or vapors in this appliance - it is not designed for industrial or laboratory use.
operate this appliance if it has a damaged cord or plug, is not working properly, or has been damaged or dropped. See
POWER CORD REPLACEMENT
, page ii.
D O N O T
D O N O T
D O N O T cover or block any openings on the appliance.
store this appliance outdoors.
use this product near water (e.g., near a kitchen sink, in a wet basement, near a swimming pool).
immerse cord or plug in water.
D O N O T
D O N O T
D O N O T procedures.
let cord hang over the edge of table or counter.
use a water jet for cleaning. See the maintenance section of this manual on page 5 for proper cleaning
R E D U C I N G F I R E R I S K o o o
Remove wire twist-ties from paper or plastic bags used to facilitate cooking in the oven.
If materials inside the oven ignite,
- Keep oven door closed
- Turn oven off
- Disconnect the power cord or shut off power at the fuse or circuit breaker panel
If smoke is observed, switch off or unplug the oven. Keep the door closed to stifle any flames.
D O N O T use the cook cavity for storage purposes.
D O N O T overcook food. Carefully attend the oven if paper, plastic, or other combustible materials are placed inside the oven to facilitate cooking.
D O N O T leave paper products, cooking utensils, or food in the cavity when not in use.
S A V E T H E S E I N S T R U C T I O N S
ii I N T R O D U C T I O N
P R E C A U T I O N S T O B E O B S E R V E D B E F O R E A N D D U R I N G S E R V I C I N G T O A V O I D P O S S I B L E E X P O S U R E T O
E X C E S S I V E M I C R O W A V E E N E R G Y
(a)
DO NOT operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing,
(3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
(c) 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 connections.
(d) Any defective or misadjusted 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.
(e) A microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner.
G R O U N D I N G I N S T R U C T I O N S
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 oven is equipped with a cord that has a grounding wire with a grounding plug, which must be plugged into an outlet that is properly installed and grounded. Consult a qualified electrician or serviceman if uncertain about the ability to follow grounding instructions or if doubt exists as to whether the appliance is properly grounded.
D O N O T use an extension cord. If the power cord is too short, have a qualified electrician or serviceman install an outlet near the appliance.
W A R N I N G
: Improper grounding can result in risk of electric shock.
P O W E R C O R D R E P L A C E M E N T
If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or a similarly qualified person.
R F I N T E R F E R E N C E C O N S I D E R A T I O N S
The NGC (Tornado
®
) oven generates radio frequency signals. This device has been tested and was determined to be in compliance with applicable portions 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 equipment with sensitivity to signals below these limits may experience interference.
If your equipment experiences interference: o
Increase the physical separation between this oven and the sensitive equipment.
o o o o
If the sensitive device can be grounded, do so following accepted grounding practices.
If battery-powered microphones are being affected, ensure that the batteries are fully charged.
Keep sensitive equipment on separate electrical circuits if possible.
Route intercom wires, microphone wires, speaker cables, etc. away from the oven.
Installation, Specifications, and Maintenance
I N S T A L L A T I O N , S P E C I F I C A T I O N S , A N D M A I N T E N A N C E 1
F I G U R E
1: NGC (Tornado) Dimensions
S P E C S A N D D I M E N S I O N S
Dimensions
E X T E R I O R C O O K C A V I T Y
Height with legs
Width
Depth
19” (483 mm)
23” (584 mm)
26” (660 mm)
25.7” (653 mm) with handle 28.2” (716 mm)
Weight 190 lbs. (86 kg)
8” (203 mm)
15.5” (394 mm)
14.7” (373 mm)
W A L L C L E A R A N C E
Back
Sides
0” (0 mm) unless built-in (page 2)
2” (51 mm)
Standard Features o
Recirculating airpath with patented catalytic converter system o o o
Multi-speed convection blower
Independently-controlled bottom browning element
Stackable design o o o o
Smart Voltage Sensor Technology (North America only)
Factory-programmed, customizable menu settings
Smart Card for remote programming
Warranty -
1 year parts and labor
Certifications
UL, cUL, NSF, FDA, FCC, TÜV, CE
E N T R Y C L E A R A N C E
Crated
Uncrated
(minimum)
31.5” (800 mm)
28.7” (729 mm)
Construction
E X T E R I O R o o o
430 stainless steel front, top and sides.
4 ” (102 mm) adjustable legs
Cool to the touch handle
I N T E R I O R o o o o
304 stainless steel line
Fully insulated cooking chamber
Removable assorted cooking surfaces
Independently-controlled lower cooking element
UL KNLZ Ventless Certification - This product conforms to the ventilation recommendations set forth by NFPA96 using EPA202 test method.
Packaging
All ovens are packaged in a double-wall corrugated box banded to a wooden skid.
Power Supply - North America
S M A R T V O L T A G E S E N S O R T E C H N O L O G Y
Voltage: 208/240 VAC , 60 Hz, 1 phase
Amperage:
Cordset:
Plug:
Nameplate rating 30 Amp (3-wire including ground)
10 gauge, 3 conductor, 5 foot cordset
NEMA 6-30
2 I N S T A L L A T I O N , S P E C I F I C A T I O N S , A N D M A I N T E N A N C E
N O T E
: The Smart Voltage Sensor Technology does not compensate for lack of voltage or over-voltage situations. It is the responsibility of the owner to supply voltage to the unit according to the following specifications.
P O W E R I N P U T
Heaters Input Power (NA) 5990/6675 watts
Heaters Input Power (Intl) 6300 watts
Microwave Input Power 3500 watts*
*Maximum Independent Input Power
Power Supply - Europe, Asia-Pacific
NGC EW (3-phase)
Voltage:
Circuit Breaker:
400
VAC
, 50 Hz,
Wye, 5wire (3L + N + Ground)
Type D, min. 20 Amps
NGC ED (3-phase)
Universal Voltage:
Circuit Breaker:
230 VAC , 50 Hz, Delta, 4wire (3L + Ground)
Type D, min. 30 Amps
D E L I V E R Y A N D P R O D U C T P L A C E M E N T
Remove oven from carton. Immediately note any damage and contact shipping company within 24 hours in order to file a claim. TurboChef is not responsible if the product is damaged in shipment.
Remove all literature and accessories from the carton.
NOTE
: Thoroughly check the carton before discarding.
NGC UK (1-phase)
Voltage:
Circuit Breaker:
NGC BK (1-phase)
Voltage:
Circuit Breaker:
230 VAC , 50 Hz, 3-wire
(2L + Ground)
Type D, min. 30 Amps
Power Supply - Latin America
220 VAC , 60 Hz, 3-wire
(2L + Ground)
Type D, min. 30 Amps
W A R N I N G
: Oven weight is approx. 190 lbs.
(86 kg) Two or more persons are required to lift it.
Lifting and Placing the Oven
Position one or more persons on either side of the oven and lift from the bottom. Never lift the oven from the front and rear. Place the oven on a countertop surface at least 28” (711 mm) deep and capable of supporting 200 lbs (91 kg).
Once properly positioned on the counter, plug the oven into wall-mounted electrical receptacle. See page ii for grounding instructions.
Power Supply - Japan
NGC JD (3-phase)
Voltage:
Circuit Breaker:
200 VAC , 50/60 Hz, Delta,
4-wire (3L + Ground)
Type D, min. 30 Amps
NGC JK (1-phase)
Voltage:
Circuit Breaker:
200 VAC , 50/60 Hz
(2L + Ground)
, 3-wire
Type D, min. 30 Amps
W A R N I N G
: Never lift the oven by its door handle. Physical damage to the oven and/or personal injury may result. The operator must ensure that the oven is properly placed on the countertop at all times. TurboChef will not recognize a fallen oven as a warrantable claim and is not liable for any injuries that may result.
Power Supply - South Korea
NGC KW (3-phase)
Voltage:
Circuit Breaker:
400
VAC
, 60 Hz,
Wye, 5wire (3L + N + Ground)
Type D, min. 20 Amps
Built-In Installation (Figure 2)
TurboChef ovens are designed to be installed on a countertop or table. They are not intended for builtin or enclosed installation.
“Built-in or enclosed installation” is defined as installing an oven in any structure that surrounds the oven by five sides (i.e., top/rear/side panels and base).
F I G U R E
2: Built-in Installation Specs
I N S T A L L A T I O N , S P E C I F I C A T I O N S , A N D M A I N T E N A N C E 3
(102 mm)
F I G U R E
3: Open Heat Source Installation Specs
If installation must be “built in,” the operator must ensure the following: o o
Minimum of 300 cfm (8.5 cmm) of supplement flow within the cabinet.
Minimum clearances of 2" (51 mm) to every surface.
In addition, the operator will be responsible for compensating any extra time required to service the product due to removing the product for serviceability.
Installation Near Open Heat Source (Figure 3)
When placing a TurboChef oven near an open heat source, strictly adhere to the following: o o o o
Verify oven location has a minimum 6" (152 mm) clearance on top and minimum 2" (51 mm) of clearance on each side.
If the oven is being placed near a grill or stove, there must be a divider between the oven and the open heat source, with a minimum of 6" (152 mm) between the oven and the divider.
If the oven is being placed near a fryer, there must be a divider between the oven and fryer, with a minimum of 12" (305 mm) between the oven and the divider.
The height of the divider must be greater than or equal to the height of the oven (23"/584 mm).
4 INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
Oven Restraint Kit (TC3-0242 KIT)
The Oven Restraint Kit is an optional system that helps prevent the oven from moving forward during use and/or cleaning. It will not prevent the oven from falling off a countertop if the legs are allowed to slide off the edge or if the oven is intentionally or forcefully pulled off.
Proper installation instructions are included with the kit. for additional information, please call customer service at 800.90
TURBO
/ +1 214.379.6000
.
Ventilation Requirements
The TurboChef Tornado
TM oven has been approved by
Underwriter’s Laboratory for ventless operation (UL
710B, KNLZ listing) for all food items except for foods classified as “fatty raw proteins.” Such foods include bone-in, skin-on chicken, raw hamburger meat, raw bacon, raw sausage, steaks, etc. If cooking these types of foods, consult local HVAC codes and authorities to ensure compliance with ventilation requirements.
NOTE: 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 previously listed.
SETUP AND INITIAL OPERATION
Setup
Once the oven is properly positioned on the counter, remove any packing material and/or any foreign objects from within the cavity. Install the oven rack/ cooking surface.
Stacking
1. Ensure the surface that will hold the stacked ovens can support at least 400 lbs (181 kg).
2. Allow ovens adequate time to cool and unplug them
3. If you are stacking ovens on a TurboChef oven cart (24” = NGC-1217-1, 18” = NGC-1217-2), make sure that the bottom oven is bolted to the cart and the wheels are locked.
4. Attach the stacking bracket (P/N TC3-0323) to the back of the bottom oven: a. Remove the two screws that hold the top panel to the back of the oven (see bottom arrows on Figure 4).
b. Align the holes on the stacking bracket with the holes on the oven and reinstall the screws.
5. Remove the legs of the oven that will be placed on top. This requires two or more persons - at least one person to lift and one to unscrew the legs.
6. Remove the screws from the oven that will be placed on top (see top arrows on Figure 4).
7. Place this oven on top of the other (the one to which the stacking bracket is attached).
WARNING
: Do not attempt to lift the oven with fewer than 2 people.
WARNING
: Do not lift oven from front and back.
8. Align the holes on the bracket with the holes on the top oven and reinstall the screws.
WARNING
: Do not stack ovens over twohigh.
Programming
The oven is preprogrammed and ready to operate out of the box.
Initial Power-up
To turn on the oven, press the bottom-right soft key next to the words
OVEN ON on the display.
The oven will begin to warm up to its predefined cooking temperature. This takes approximately 13 minutes.
When the warm-up cycle is completed, the oven will beep and display the
READY TO COOK
.
F I G U R E
4: Properly Stacked NGC Ovens
1 2
I N S T A L L A T I O N , S P E C I F I C A T I O N S , A N D M A I N T E N A N C E 5
3 4 5
6 7 8 9 10
D A I L Y M A I N T E N A N C E F O R T H E N G C
Before cleaning, check with the store for custom cleaning instructions.
When cleaning the oven, use only TurboChef Oven
Cleaner. Any other cleaning products can damage critical parts and may void warranty on those parts.
Supplies and Equipment
TurboChef
®
Oven Cleaner (P/N 103180 USA,
103380 Intl), Oven Guard (P/N 103181 USA,
103381 Intl), nylon scrub pad, cleaning towel
Step 1: Prepare the Oven o
Turn oven off by pressing the
BACK key.
o
The oven will display
OVEN OFF
/
COOLING DOWN
.
D O N O T attempt to clean oven during the cool down cycle. Cooling takes appx. 90 minutes.
Step 5: Remove Particles and Spray Oven Interior with TurboChef
®
Oven Cleaner o o
Using a damp towel, remove large food particles.
If stubborn stain is present, sparingly spray
TurboChef Oven Cleaner onto the stain.
o
Allow cleaner to penetrate for five (5) minutes.
D O N O T saturate the bottom of the oven with water or oven cleaner.
Step 6: Clean Oven Interior o
Using a nylon scrub pad, clean the oven door and cook cavity.
C A U T I O N
:
DO NOT apply pressure to the wave guide covers. Breaking will result in a non-warranty service call.
WARNING
: The oven operates at appx. 500ºF
(260ºC) and may cause injury if not allowed time to cool properly.
Step 7: Wipe Out Oven Interior o
Wipe oven door, bottom element, and cook cavity using a damp towel.
Step 2: Remove the Lower Access Panel o
Wipe out any crumbs that have collected.
Step 8: Clean Lower Access Panel Area
D O N O T spray any chemical in this area.
Step 9: Lower the Bottom Element and Reinstall the
Cooking Surface and Lower Access Panel
Step 3: Remove and Clean the Cooking Surface o
If rack, wash, rinse, and sanitize.
o
If baking stone, gently dry-scrub with nylon pad.
If the stone gets wet, let it thoroughly air-dry.
Step 4: Lift Bottom Element o
Be sure the bottom element is cool prior to lifting.
WARNING
: The bottom element operates at appx. 1000ºF (537ºC).
Step 10: Apply Oven Guard and Clean Oven Exterior o o o
Spray Oven Guard on towel. Wipe sides of cook cavity and inside of door.
D O N O T spray Oven Guard directly into cook cavity or wipe on nozzle plates/bottom element.
Wipe the oven exterior with a clean, damp towel.
Oven is ready to turn on.
Theory of Operation
T H E O R Y O F O P E R A T I O N 7
T H E O R Y O F O P E R A T I O N
The TurboChef
®
NGC (Tornado
®
) oven utilizes three independent heat transfer mechanisms to rapidly cook food.
Should a problem arise with any of the components listed below, please turn to the appropriate section within this manual for further instructions.
The systems are as follows: o o o
Convection
Infrared energy
Microwave energy
For the purpose of this manual, each independent heat transfer mechanism is individually identified.
For instance, if an oven is experiencing difficulties browning the food, focus on
CONVECTION SYSTEM and/or
BOTTOM IR AND CCV
. Focus on
MICROWAVE
SYSTEM if the oven is browning the food but not heating the inside.
By combining these mechanisms along with the ability to control each mechanism independently, the NGC (Tornado) oven is able to reduce the cook time of most foods by 70-90 percent.
Figure 5 below represents the oven’s different systems and the critical components of each system.
Part numbers are included on illustrations (where applicable) and in the back of this manual. If an item is not illustrated, the part number is provided in the text.
Chapter 4
C O N T R O L S Y S T E M
I/O Control Board
Keypad
Display
Mechanical Relays
Solid State Relay
Chapter 5
M I C R O W A V E S Y S T E M
Magnetrons
High Voltage Transformers
Filament Transformers
High Voltage Capacitors
High Voltage Diodes
Fuses
Chapter 7
C O N V E C T I O N S Y S T E M
Convection Heater
Blower Controller
Blower Motor
Hi-Limit Thermostat
Chapter 8
B O T T O M I R A N D C C V
Bottom Infrared Element
Catalytic Converter
F I G U R E
5: NGC (Tornado) Systems and Critical Components
8 T H E O R Y O F O P E R A T I O N
G L O S S A R Y O F C O M M O N O P E R A T I N G T E R M S
Off State
All the oven’s control systems are off and the cook cavity temperature is below 150ºF (66ºC).
Cool Down
A subset of the
OFF STATE
. During
COOL DOWN
, the oven will circulate the main convection blower until the cook cavity temperature is below 150ºF (66ºC).
Ready State
The oven has successfully warmed to the predefined set temperature. At this point the oven control is ready to receive cook commands via the keypad. The oven will maintain the set temperature in the
READY STATE
.
Set Temperature, Cook Cavity (CCSP)
Predefined temperature of the cook cavity at which the oven cooks.
Set Temperature, IR Element (IRSP and IRSI)
IRSP is the set temperature of the IR element during a given cook cycle. Settings are determined on a per-recipe basis. IRSI is the set temperature of the IR element during the
READY STATE
(or “idle”). IRSI setting can be adjusted in the
TEST MODE
(page 16).
Actual Temperature, Cook Cavity (TCC)
The actual temperature registered by the cook cavity thermocouple.
Actual Temperature, IR Element (TIR)
The actual temperature registered by the IR element.
Edit Mode
Enables the user to change recipe and CCSP/IRSP temperature settings.
Warm-Up
The mode in which the oven warms itself to the set temperature.
Soak
The mode in which the oven temperature has reached the CCSP, and remains in warmup for an additional 8 minutes to allow cook cavity surfaces to warm. The oven will proceed to soak only if warm-up was initiated when TCC < (CCSP - 126ºF) or TCC < (CCSP - 66ºC).
Cook Cycle
A period of operation as defined by a recipe.
Test Mode
A special diagnostic mode that enables the service technician to turn on and off all oven systems independent of one another, check oven statistics, and set the IRSI.
T H E O R Y O F O P E R A T I O N 9
Keypad
The primary interface for the operator.
Display
Displays all visual information to the operator.
Self-Test (STEST)
A special diagnostic function that tests all critical subsystems to determine their operational state.
Recipe
A set of user-defined Events that determine a cook cycle.
Events
A single operational element that is a part of a recipe. Each recipe may have up to six events depending on programming. Each event can be set between 0 and 100% of the total cook time.
Total Cook Time
The total duration of a recipe.
Percentage (%) Time
An event subset that specifies the duration of the event. The sum of all event time percentages for a recipe must equal 100%.
Percentage (%) Air
An event subset that specifies the relative amount of impingement airflow (speed of convection motor) during an event. Valid between 10 and 100%.
N O T E
: Maximum 100% = 7100 RPM blower motor speed. Blower motor speed scale is linear.
Percentage (%) Microwave (WAV)
An event subset specifying the microwave cycle during the event. Valid between 0 and 100%. For example, if WAV is set to 30%, then microwave would be present in the cook cycle for 3 out of every 10 seconds.
Fault Code
A code assigned to an instance that the control considers to be a failure. Upon discovering a fault, the control will display the fault code and a brief description of the failure. The oven will also log faults F1 through F6 in the Fault Log. See page 11 for more detail on faults and for viewing the fault log.
Fault Codes
F A U L T C O D E S 11
The NGC (Tornado
®
) oven has the ability to continually monitor and log various fault conditions. Some fault conditions will terminate cook cycles, while others will not. Please refer to the fault code table on page 12 for more detailed information.
When a fault is detected, the Fault Log will increment. However, if the fault is subsequently cleared by some action, whether service related or not, the
Fault Log will not decrement.
NGCVXXXX XXXXXX
S/N XXXXXX
COOK COUNT
F1 BLOWER
F2 LOW TEMP
F3 MAG CURR
F4 MONITOR
F5 MAG TEMP
F6 TEMP
0
0
0
0
0
0
0
T O V I E W F A U L T C O D E S
To view the Fault Log, simultaneously press the “4” and “6” keys while the oven is in the
OFF STATE
.
The oven will display all faults logged. Figure 6.
F I G U R E
6: Fault Log
Each fault will log up 255 instances before rolling back to zero. To zero the log, see pages 14-15
(
TEST MODE
).
F2: Cook Temperature Low
Fault is displayed if the cook cavity temperature is more than 84ºF (47ºC) below the set temperature after five (5) seconds into a cook cycle.
N O T E
: The Fault Log also displays cook counts, which will log up to 65,535 cook cycles. In order for the control to log a cook cycle, the oven must complete the first event of any given recipe. If a recipe has only one event, the oven must complete the entire cook cycle in order to count it.
The fault is cleared from the display at the onset of cooking if the cook cavity temperature is within
84ºF (47ºC) of the set temperature or when the heater is tested in the
TEST MODE
.
F3: Magnetron Current Low
Fault is displayed when the current transformer
(CT) on the I/O control board does not detect enough current. The fault is monitored when the microwave is on during a cook cycle or self-test.
F A U L T C O D E D E F I N I T I O N S
F1: Blower Running Status Bad
Fault is displayed when the motor controller indicates no running status.
The fault is cleared from the display at the onset of a cook cycle if the CT detects current or when the magnetron is successfully energized in
TEST MODE
.
The motor and motor controller are monitored continuously in all modes with special handling in
SELF
TEST and
TEST MODE
. If a fault is detected, the control will terminate a cook cycle and display
F
1:
BLOWER
. Upon turning on the oven, the control will attempt to restart the motor. If the restart is successful, the fault code will be cleared. The fault is also cleared from the display at the onset of cooking or when the blower motor is tested in
TEST MODE
.
F4: Door Monitor Defective
Fault is displayed when the control detects that the monitor interlock switch unlatches before the primary or secondary interlock switches.
In addition, this fault will blow the F3 fuse if the microwave high voltage system is energized when the fault occurs. The fault is cleared from the display when the oven is powered off and then back on.
12 F A U L T C O D E S
N O T E
: Door interlock switches are in parallel. See
OVEN SCHEMATICS
, pages 55-63. The fault is monitored during a cook cycle, or in
SELF TEST when the microwave is on.
thermocouple temperature is below the indicated limit.
F5: Magnetron Over Temperature
Fault is displayed when either magnetron thermostat is “open.”
F7: Thermocouple Open
Fault does not log in counter. Fault is displayed when the control detects that either the IR or CC thermocouple is “open.”
The fault is cleared from the display at the onset of a cook cycle if the thermostat is closed or when the magnetron is successfully tested in
TEST MODE
.
o o
999ºF/C indicates CC thermocouple is “open.”
1999ºF/C indicates IR thermocouple is “open.”
Fault is cleared when the control detects continuity on the open thermocouple circuit.
F6: EC (Electrical Compartment) Temperature High
Fault is displayed when the EC thermocouple exceeds 158ºF (70ºC). It is monitored once per minute.
The fault is cleared from the display when the EC
F8: Heat Low
Fault is not logged in counter. Displays during
WARM UP or
SELF TEST if the cook cavity temperature (TCC) fails to rise at least 14ºF (7ºC) within a given thirty (30) seconds.
F A U L T C O D E T A B L E
F A U L T C O D E A N D D E S C R I P T I O N R E F E R T O
F1: Blower Running Status Bad
F2: Cook Temperature Low
F3: Magnetron Current Low
F4: Door Monitor Defective
F5: Magnetron Over Temperature
F6: EC Temperature High
F7: Thermocouple Open
F8: Heat Low
W H E N A C T I V E
Warm - up Idle Mode Cook Mode Self-Test
X X X X
X
X X
X
X X
X
X
X
X
X
X X
X X
Page 22
Page 23
Page 34
Page 46
Page 28
Page 14
Page 21
Page 22, 49
Fault codes are listed in order of hierarchy. For example, if during cooking the oven experiences an F1 and F2 fault, the oven will report only the F1 fault because the software will halt all actions upon discovering the F1 fault. F7 and F8 faults are displayed on the primary screen and are not displayed or counted in the Fault Log.
N O T E
: All Fault codes listed in bold will terminate a cook cycle upon discovery. Any fault occurring in a cook cycle will be logged in the Fault Log.
The Control System
T H E C O N T R O L S Y S T E M 13
The Control System is comprised of the components that signal, sense, command, and switch the oven’s various components. Figure 7 shows a functional diagram of all the components that make up the
Control System.
N O T E
: The part numbers for each component can be located on the drawings found throughout and at the end of this manual.
3
2
1
4
3
2
1
L
N
24VDC
POWER
SUPPLY
+V
-V
COMMON
BMSC
FOR MORE DETAIL, SEE FIGURE 37
240 VAC
3 PHASE
OUT
SPD
CMD
200-240
VAC IN
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
GROUND
2
3
1
4
5
6
VOLTAGE
SENSOR
U.S. ONLY
IR THERMOCOUPLE
EC THERMOCOUPLE
CC THERMOCOUPLE
A (-)
C (+)
A (-)
C (+)
A (-)
C (+)
VOLTAGE INPUT
COMMON
K1
MECH
RELAY
+ 24 VDC -
K2
MECH
RELAY
+ 24 VDC -
+24VDC
+24VDC
K3
MECH
RELAY
+ 24 VDC -
I/O
CONTROL
BOARD
1
1 2
2
1
1 2
2
KEYPAD
14
14
14
14
K6
MECH
RELAY
(U.S. ONLY)
+ 24 VDC -
VFD
DISPLAY
K5
3(+) 4(-)
DUAL
SSR
+24VDC
MONITOR SWITCH
NC
C
NO
MONITOR
INTERLOCK
+24VDC
IR ELEMENT COMMAND
CONVECTION HEATER COMMAND
MAGNETRON COOLING FAN COMMAND
PRIMARY SWITCH
INTERLOCK
PRIMARY SWITCH
NC
C
NO
SECONDARY SWITCH
INTERLOCK
SECONDARY SWITCH
NC
C
NO
COMMON
K4
3(+) 4(-)
K7
RELAY
- 24 VDC +
+24VDC
F I G U R E
7: NGC (Tornado
®
) Control System
14 T H E C O N T R O L S Y S T E M
C O N T R O L S Y S T E M C O M P O N E N T D E S C R I P T I O N S
24 VDC Power Supply
24 VDC output at 40 watts. Supplies control voltage for I/O control board, 24 VDC mechanical relays, and solid state relays.
IR Thermocouple
Type K Thermocouple. Embedded in the IR element, the IR thermocouple measures the internal/sheath temperature of the IR element. Valid IR set points are between 500ºF (260ºC) and 1150ºF
(621ºC). The display indicates 1999ºF/C if the thermocouple is “open”.
K1 Mechanical Relay
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Switches power to the magnetron filament transformers.
K2 Mechanical Relay
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Switches power to the magnetron high voltage transformers.
EC Thermocouple (P/N 700-1199)
Type K Thermocouple. Thermocouple measures the temperature of the electrical compartment. If the temperature within the electrical compartment is above 158ºF (70ºC), the control displays
TEMP
. The control board checks the EC temperature every 60 seconds.
F
6:
EC
K3 Mechanical Relay
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Safety interlock device designed to short L1 and L2 if the monitor switch opens before the primary or secondary interlock switches.
CC Thermocouple
Type K Thermocouple. Thermocouple measures the temperature of the re-circulating impingement airflow. Valid CC set points vary depending on software. If the display indicates 999ºF/C, the thermocouple is “open.”
K4/K5 SSR
240 VAC, Dual 40 Amp Solid State Relay. K4
(right) controls the convection heater and K5 (left) controls the IR element.
BMSC
Proprietary Brushless DC Motor Controller.
Designed solely to operate the blower motor.
K6 Mechanical Relay (North America Only)
240 VAC, 30 Amp, Three Pole, Double Throw, 24
VDC Relay Coil. Responsible for switching between the 208VAC and 240VAC taps on the high voltage and filament transformers.
VFD (Display)
Vacuum Fluorescent Display.
Keypad
5x9 Matrix Membrane Switch. Keypad is connected to the I/O control board via 14-pin flat cable.
K7 Relay
24 VDC, 20 Amp, Sealed. Starts with command from I/O board; switches magnetron cooling fan on and off. Timer for switching off mag fan is 4:15 after filament switches off.
Interlock Switches
Primary, Secondary, and Monitor Interlock Switches .
Must be actuated by the oven door. When the door opens, the order is: P, S, M.
Voltage Sensor (North America Only)
Proprietary device designed to measure incoming line voltage and switch between 208 and 240 VAC operation. The device measures and allows the user to configure the oven only when the oven is first powered on. Voltage sensor will default at 240
VAC.
T E S T M O D E
The Test Mode allows the service technician to operate the oven’s subsystems individually. It also allows the operator to configure various presets.
T H E C O N T R O L S Y S T E M
15
F I G U R E
8: Accessing Test Mode
TEST NGC XXXXX
CC 81
0
F IR 500
0
F
BLOWER HEATER
FAULTS MGTRON
STEST
IR ELE
P S M t h i A W
F I G U R E
9: Test Mode - Screen 1
TEST NGC XXXXX
CC 81
0
F
IR 500
0
F
DIAG
0
ELEC
COOKS F/C
ACCUM
IR SI
P S M t h i A W
F I G U R E
10: Test Mode - Screen 2
To enter
TEST MODE
(Figure 8):
1. Press the
BACK key until the display is in the
OFF
STATE
.
2. Simultaneously press
BACK and
ENTER keys.
3. When prompted, enter the access code: 9-4-2-8 and press
ENTER
.
Self-Test Function (Screen 1)
The
STEST key initiates a self-test to test all major components of the oven (including door switches).
To run the self-test, press the corresponding soft key once. Press the
BACK key to return to the
OVEN
OFF
/
COOLING DOWN mode.
The
TEST MODE displays the software version, actual cook chamber temperature, and actual IR element temperature at the top of the screen. The
TEST
MODE consists of 2 screens (Figures 9 and 10). To display the second screen, press either the
UP or
DOWN key. To test a component or sub-system, press the corresponding soft key.
Heater Test (Screen 1)
Press the
HEATER key to turn the heater on. Heater will remain on until key is pressed again to turn it off. If the blower speed is 0, the blower speed is set to idle airflow (10%).
T E S T F U N C T I O N O P T I O N S
Blower Speed (Screen 1)
The
BLOWER key increments the blower motor speed in 10% increments. When the speed is
100%, the next press sets the speed to 0%.
Magnetron (Screen 1)
Press and hold the
MGTRON key to test the magnetrons. Doing so requires a 5-second warm-up period. Once the
MGTRON key is released, the high voltage supply is switched off to the magnetron and the magnetron will stop radiating; however, the power is still supplied to the magnetron cooling fan for an extra 4 minutes, 15 seconds.
NOTE
: If this function is being used to expedite cooling, open the oven door to further expedite.
Faults (Screen 1)
Pressing the
FAULTS soft key will display all the accumulated faults in the Fault Log. Press “0” to zero the fault counter. For more information, see page 11 .
IR ELE (Screen 1)
Pressing the
IR ELE key will turn on the IR element. When pressed, the screen will read
IR
ELEMENT ON
. Press the
IR ELE key again to turn it off.
16 T H E C O N T R O L S Y S T E M
Diagnostic Display (Screen 2)
The
DIAG key turns on or off the diagnostic display feature. When this feature is enabled, the oven will display temperature and cook cycle parameters when the oven is cooking or idle.
In addition, the status indicators are displayed on the bottom of the screen. When a status indicator is highlighted/backlit the corresponding system is off or open. For example: W
Microwave System is off.
would indicate that the
S T A T U S I N D I C A T O R S
See Figures 9 and 10 on page 15.
P Primary switch – closed or open
S Secondary switch – closed or open
M Monitor switch – closed or open t Magnetron thermostats – closed or open h Main convection heater – off or on i IR element – off or on
A Blower motor controller – enabled or disabled
W Microwave current – Less than or greater than 7
Amps*
The
STATUS INDICATOR section below offers a more detailed description of each indicator.
* Microwave ( W ) status indicator is not highlighted/backlit when the current is more than 7 Amps.
COOKS (Screen 2)
Press once to display the total number of cook counts for all recipes. Press again to display the total amount of time the oven has been in cook cycles.
Status indicators are displayed at the bottom of the display screen when the oven is in
TEST MODE
, or during normal oven operation if in
DIAGNOSTIC MODE
(
DIAG was turned on) . Refer to Figures 9 and 10 .
ACCUM (Screen 2)
Press once to display the total amount of time the magnetrons have been on. Press again to display the total amount of time the oven has been on.
If a status indicator is highlighted/backlit, the item or component is in an un-energized or off state.
Conversely, if a status indicator is not highlighted, the component is in an energized or on state.
Electronic Compartment Temperature (Screen 2)
The º
ELEC key displays the temperature inside the electronic compartment.
F/C (Screen 2)
Changes how the oven’s temperature units are displayed. The
F
/
C key alternately selects Fahrenheit or
Celsius.
P R O G R A M M I N G
Edit Mode
The
EDIT MODE enables the operator to manually alter recipes and the cook cavity temperature
(CCSP)
.
IR SI (Screen 2)
Displays the idle IR set point. This temperature is a factory setting and should never be altered. If an incorrect temperature has been entered, consult the factory before changing this value.
To access
EDIT MODE
:
1. Simultaneously press the
UP and
DOWN keys.
2. When prompted, enter the access code “9” and then press the
ENTER key.
NOTE
: If this does not provide access, refer to page 19 for enable/disable codes.
Changing the Cook Chamber Temperature
This temperature is a factory setting - exercise caution before altering it. For best results, consult the factory before changing this value.
T H E C O N T R O L S Y S T E M 17
EDIT GROUPS
GROUP A
GROUP E
GROUP B
GROUP F
GROUP C GROUP G
GROUP D
GROUP H
ITEM 1
GROUP A
ITEM 5
ITEM 2 ITEM 6
ITEM 3
ITEM 7
ITEM 4 ITEM 8
< GROUP 1 >
ITEM 1
COUNT
COOK TIME
IR SETPT
0
00:00
500
0
F
%TIME %AIR %WAV
1 XXX
XXX
2 XXX
XXX
XXX
XXX
3 XXX
4 XXX
5 XXX
6 XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
TEST
SAVE
F I G U R E
11: Select Group
F I G U R E
12: Select Recipe
F I G U R E
13: Edit Recipe Settings
To change the cook cavity temperature (CCSP), press the
UP and
DOWN keys. Temperature ranges vary depending on software. Once you have selected the correct temperature, press the
ENTER key to confirm and advance to the next screen
.
a. Cook time
Total duration of the cook cycle. Enter the desired time and press
ENTER
.
Altering a Recipe
Most NGC (Tornado) oven models contain 128 unique recipes. The display shows two ( 2) pages each with eight ( 8) recipe groups. Each recipe group contains eight ( 8) recipes. See Figures 11 and 12 . b. IR element temperature (IRSP)
The temperature the lower radiant element will maintain during the entire cook cycle.
Valid temperatures are between 500ºF (260ºC) and 1150ºF (621ºC).
To alter a recipe:
1. Enter the
EDIT MODE
(see page 16).
2. Enter the access code “9” and set the CCSP. The screen displays the first set of eight (8) recipe groups. To access the second set of eight (8) recipe groups, press either the
UP or
DOWN key.
3. Select the recipe group that contains the individual recipe you wish to alter. Select the recipe you wish to alter by pressing the soft key corresponding to the recipe item. Figures 11 and 12.
c. Events 1…6
Use the keypad and
ENTER key to enter values for %
TIME
, %
AIR
, and %
WAV
. o
Sum of %
TIME for all events must = 100.
The operating system will not allow a o o combination of events not equal to 100%.
The %
AIR parameter is valid between 10 and 100%.
The %
WAV
(microwave) parameter is valid between 0 and 100%.
5. After making changes, test the recipe by pressing the
TEST soft key. Once the oven has warmed to the CC set point, press the
TEST soft key again to begin the test cook.
4. Use the
UP and
DOWN keys to navigate through the recipe settings. Use the keypad and
ENTER key to alter any of the following three (3) parameters
(see Figure 13):
6. Once satisfied with the recipe, press permanently store changes.
SAVE to
7. Press the
BACK key until exited from
EDIT MODE
.
18 T H E C O N T R O L S Y S T E M
Loading a Menu from a Smart Card
1. Ensure the oven is in the
OVEN OFF
/
COOLING
DOWN mode.
2. Enable the
LOAD MENU function (page 19). The oven will return to the Off screen.
3. Remove the lower access panel (Figure 14).
4. Insert smart card into oven (Figure 14).
5. Press the bottom-left soft key.
6. Select
LOAD MENU FROM CARD
. The menu on the smart card will load to the oven.
7. When this process completes, the oven will beep. Remove the smart card and reattach the lower access panel.
8. If the oven is a Subway oven, disable the
LOAD
MENU function (page 19). For all other ovens, leave it enabled.
O V E N O P T I O N S
Done Screen
To enable/disable the Done Screen (Figure 15), see the next page. Enable the Done Screen to: o
Cook an item longer after the end of a cook cycle.
o
Save an adjusted cook time (only if Time Screen is also enabled).
Time Screen
To enable/disable the Time Screen (Figure 16), see the next page. Enable the Time Screen to: o
Adjust the cook time before initiating a cook cycle.
o
Save an adjusted cook time.
Snooze Mode
To enable/disable the Snooze Screen, see the next page. Enabling the Snooze Screen will allow the operator to set the oven in a mode during which all oven operations are turned off, but the heaters remain on.
The cook cavity will remain at the set temperature, and the IR temperature will drop 200ºF (104ºC) below the IRSI. This allows fast recovery when the oven is again turned on.
DONE
F I G U R E
14: Inserting Smart Card
SAVE
TIME
COOK
MORE
F I G U R E
15: Done Screen
ENTER COOK TIME
00:20
START
F I G U R E
16: Time (Start) Screen
T H E C O N T R O L S Y S T E M 19
U S E R C O N F I G U R A B L E O P T I O N S - E N A B L E / D I S A B L E C O D E S
The following codes enable and disable each function/screen listed. They do not take you to the function/screen.
After each code, press
ENTER
. To enable, press 9 after entering code (except
S
-
A
-
V
-
E
,
W
-
A
-
V
-
E
). To disable, press any key (except 9) after entering code.
Function/Screen
Done Screen w/out “Save Time”
Done Screen w/ “Save Time” - step 1
Done Screen w/ “Save Time” - step 2
Edit Recipe Mode
Load Menu from Card
Save Menu to Card - step 1
Save Menu to Card - step 2
Snooze Screen
Time Screen (Figure 16)
Timed Mag Test
- Some codes are not available on some ovens.
- Oven must be in Off or Cooling Down mode.
Simultaneously Press
BACK
&
ENTER
BACK
BACK
&
ENTER
&
ENTER
UP
&
DOWN
BACK
&
ENTER
BACK
BACK
&
ENTER
&
ENTER
BACK
&
ENTER
BACK
&
ENTER
BACK
&
ENTER
Enter Key Code
3-6-6-3 (D-O-N-E)
3-6-6-3 (D-O-N-E)
8-4-6-3 (T-I-M-E)
8-4-3-3 (T-I-D-E)
6-3-6-8 (M-E-N-U)
6-3-6-8 (M-E-N-U)
7-2-8-3 (S-A-V-E)
7-6-6-9 (S-N-O-Z)
8-4-6-3 (T-I-M-E)
9-2-8-3 (W-A-V-E)
U S E R C O N F I G U R A B L E O P T I O N S - A C C E S S C O D E S
The following codes allow access to each function/screen listed. To enable/disable these codes (where applicable), see above. After each code, press
ENTER
.
Function/Screen
Edit Recipe Mode
Erase Menu*
Load Menu from Card
Master Reset
Save Menu to Card
Set PIN**
Test Mode
Unit Test
View Cook Counts
View Faults***
Zero Cook Counts*
Simultaneously Press
UP
&
DOWN
BACK
&
ENTER
BACK
UP
&
ENTER
&
DOWN
BACK
BACK
1 & 3
4 & 6
BACK
&
ENTER
&
ENTER
&
ENTER
Enter Key Code
9 (or as specified - see “Set PIN” below)
3-7-2-7 (E-R-A-S)
Bottom-left, then upper-mid soft key
9-4-7-1
Bottom-left, then lower-mid soft key
3-3-4-8 (E-D-I-T)
9-4-2-8 (W-H-A-T)
8-6-4-8 (U-N-I-T)
6-7-3-9 (O-R-E-Z)
- Oven must be in Off or Cooling Down mode.
* To execute, press 3 after entering code.
** Set PIN after entering code. Accessing “Edit Recipe Mode” will now require new PIN instead of 9.
*** To view voltage, press ENTER. To initiate a self test, press the corresponding soft key from the voltage screen.
20 T H E C O N T R O L S Y S T E M
1
8
5
4
10
9
2
3
F I G U R E
17: Control System Panel Enclosure and Parts
C O N T R O L S Y S T E M P A N E L P A R T S
Figure 17.
1. NGC-1040 Cover, Keypad/Display, Std
NGC-1209 Cover, Keypad/Display, SBK
2. 102960 Nut, 4-40, Stainless
3. 100508
(Varies)*
Smart Card, Blank
Smart Card, Programmed*
4. NGC-3023 Display Svc Kit (includes
Items 5, 6, and 7)
5. 101954 Spacer, 1/2” Lg, Aluminum
6. 100193
7. 100184
3-Pin Power Cable
26-Pin Ribbon Cable
8. NGC-1110-1 Keypad, NGC, Standard
NGC-1110-2 Keypad, NGC, SWY
NGC-1110-3 Keypad, NGC, SBK
NGC-1110-4 Keypad, NGC, OUT
9. 100506
10. 100182
Smart Card Reader
Smart Card Reader Cable
* Contact TurboChef (800.90
TURBO or
+1 214.379.6000) for more info/part numbers.
6
7
T H E C O N T R O L S Y S T E M 21
C O N T R O L S Y S T E M T R O U B L E S H O O T I N G
I S S U E
No Display (Blank)
R E S O L U T I O N
1. Verify power 208 VAC or 240 VAC is going to the oven correctly.
If not, correct the voltage supply.
2. Control DOES NOT beep when any key on the keypad is pressed.
Check power going to the 24VDC power supply. Supply must have
208 or 240 VAC across L and N terminals. o
If there is no voltage, replace F1 and F2 fuses. o
If the voltage is OK, verify output of power supply is 24 VDC.
If there is no output, change the power supply. If the power supply is 24 VDC, see below.
Output is 24VDC :
Verify I/O control board has 24 VDC by checking the voltage on the D6 diode (striped end) on the I/O control board to chassis.
Reference page 54 for a schematic of the I/O control board. o
No voltage: Check wires from power supply to I/O control board. o
Voltage is 24VDC, but 5VDC is not present on the I/O control board J3 connector: Replace I/O control board.
3. The control DOES beep when any Key on the Keypad is pressed.
Check all connections between the I/O control board and display.
Correct any loose connections. If connections are OK and 5 VDC is present on the J3 connector, but there is still no display, replace display.
No Keypad Input 1. Check keypad ribbon cable going to the I/O control board. o o
Cable and connection bad: Replace keypad.
Cable and connection OK: Replace the I/O control board.
F7: Thermocouple Open
CC Thermocouple
Reads 999ºF/C or
IR Thermocouple
Reads 1999ºF/C
1. Check the connection of open thermocouple on the I/O control board.
If the connection is OK, verify thermocouple is not an open circuit by using your ohm meter. The cook cavity thermocouple should measure approximately 4-5 ohms and the IR thermocouple should measure approximately 30-40 ohms. Measure at the I/O control board
40-pin connector.
o
Thermocouple indicates open circuit: Replace defective thermocouple. o
Thermocouple OK: Replace the I/O control board.
NOTE
: F7 fault is not logged in the fault counter.
22 T H E C O N T R O L S Y S T E M
I S S U E R E S O L U T I O N
F1: Blower Running
Status Bad
Motor not running when commanded.
1. Status Indicator “A” is highlighted/backlit in
TEST MODE
.
Verify 208 or 240 (USA) / 230 (Intl) / 200 (Japan) / 220 (Latin America)
VAC is going to the motor controller via pins 2 and 3.
o
208/240/230 VAC is present: Verify control wiring from the motor controller and I/O control board, specifically low-voltage wire OR-9.
o
If all wires are OK, then refer to page 50 for motor controller troubleshooting.
208/240/230 VAC is not present: Correct wiring going to the motor controller. Also, check fuses.
2. Status Indicator “A” is still highlighted in
TEST MODE
.
Refer to page 50 for motor controller troubleshooting.
F3: Magnetron Current
Low
1. Ensure the K2 mechanical relay is in good working order.
If relay is OK, refer to pages 34-35 (
F
3:
MAGNETRON CURRENT LOW
) for detailed troubleshooting.
F8: Heat Rise Low
N O T E
: This message occurs in
WARM UP and
SELF TEST if the oven fails to warm up in the predetermined time period.
1. Verify the high-limit thermostat is not tripped. o
If high-limit is tripped, reset and allow the oven to warm up. o
If high-limit is not tripped, proceed to instructions below.
High-limit thermostat is not tripped:
Check both K4 and K5 SSRs by activating them in
TEST MODE
(activate
HEATER and
IR ELE
). When actuated, the (-) control input of the SSR will go to 0.00 VDC. When the relay is not actuated, the input will read
-24.00 VDC. o
If the control voltage is not pulled down during actuation, verify o the wiring between SSR and I/O control board. Replace SSR if wiring is OK.
If the control voltage is pulled down: Refer to Figure 37 on page 47.
T H E C O N T R O L S Y S T E M 23
I S S U E R E S O L U T I O N
F2: Cook Temperature
Low
1. Verify the high-limit thermostat is not tripped. o
If high-limit is tripped, reset and allow the oven to warm up. o
If high-limit is not tripped, follow the instructions below.
High-limit thermostat is not tripped.
Place a small water load in a microwave/heat-resistant container
(approx. 275 ml) in the oven and place the oven in
TEST MODE
. Press the
MGTRON key to actuate the microwave. While holding down the
MGTRON key, watch the CC and IR temperatures. If either temperature bounces substantially, there may be a noise (EMI) problem.
To correct this problem, examine the wire routing for each thermocouple wire. If the wires are routed near any high voltage components such as the magnetron or high voltage transformers, reroute the wires. If this does not correct the problem, verify that both magnetrons are securely mounted. Call Technical Support for further details at 800.90
TURBO or +1 214-379-6000 .
The Microwave System
T H E M I C R O W A V E S Y S T E M 25
The Microwave System is the most complex system in the oven. Proper care must be taken during servicing to protect both the operator and technician.
V O L T A G E D O U B L E R C I R C U I T D E S C R I P T I O N
The Microwave System consists of a magnetron and Voltage Doubler Circuit. The Voltage Doubler
Circuit consists of a special step-up transformer, a capacitor, and a diode.
If during normal operation any of the interlock switches open - such as when the oven door opens
- the control will turn off the microwave. If the monitor switch opens before the primary or secondary switches (abnormal operation), the monitor switch de-energizes the monitor relay. When this occurs, a dead short is placed across L1 and L2.
The short then blows the F3 fuse, which permanently interrupts power to the Microwave System until all switches are repaired and/or functioning properly.
M O N I T O R C I R C U I T D E S C R I P T I O N
In addition to understanding the Voltage
Doubler Circuit, it is imperative to understand how the Monitor Circuit operates. The Monitor
Circuit is a failsafe circuit designed to protect the operator if both the primary and secondary interlock switches fail to operate normally.
The Monitor Circuit consists of the primary and secondary interlock switch, monitor safety switch, monitor relay, and the F3 fuse. When the oven door closes during normal operation, the monitor, secondary, and primary switches close in the order listed above. When all switches are closed, the
Microwave System is allowed to operate.
Figure 18 shows a schematic of the Monitor
Circuit. Make sure to note the following: o
Primary and secondary switches interlock the o o high-voltage control signal. (K2 relay)
Normal operation: When the K2 and K3 relays energize, power is supplied to the high-voltage transformers.
Abnormal operation: When K2 is energized and K3 is un-energized (via an opening of the monitor switch), L1 and L2 short to blow the
F3 fuse and failsafe.
Figure 19 on the following page details the theory of operation of the Voltage Doubler Circuit.
LINE VOLTAGE
(L1)
LINE VOLTAGE
(L2)
F3 FUSE
20 AMP
(BLOWN)
+24 VDC
+24 VDC
K2 HV
RELAY
7
9
4
3
1
6
A
B
T1
HV TRANSFORMER
1
3
K3 MONITOR
RELAY
1
7
4
3
9
6
A
B
CONTROL
2
HV TRANSFORMER
3
1
T2
2
MONITOR SWITCH
(OPEN)
CDM
NC
C
NO
CONTROL
CONTROL
PRIMARY AND SECONDARY
INTERLOCKS (CLOSED)
NC
C
CDS
NO
NC
CDP
C
NO
F I G U R E
18: Monitor Circuit - shown in failsafe state.
26 T H E M I C R O W A V E S Y S T E M
0
(A)
TRANSFORMER OUTPUT VOLTAGE
+(B)
+2400 V
-(C)
+ +
2400
VDC
-
-
2400 Current
Flow
-2400 V
0
+(B)
MAGNETRON VOLTAGE
(A)
-(C)
+
2400
VDC
-
+
2400
Current
Flow
-4800 V
4800
VDC
CAPACITOR CHARGES
ON POSITIVE VOLTAGE SWING
F I G U R E
19: Voltage Doubler Circuit Theory of Operation
CHARGED CAPACITOR PLUS TRANSFORMER
ON NEGATIVE VOLTAGE SWING
V O L T A G E D O U B L E R T H E O R Y O F O P E R A T I O N
Figure 19
1. The high-voltage 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 conduction.
3. The high-voltage transformer plus the charged high-voltage capacitor supply down to -4800 volts to the magnetron when the voltage goes negative. (high-voltage diode is back biased.)
4. The magnetron converts negative input voltage
(and current) to RF energy at 2450 MHz.
W A R N I N G
: Do not attempt to measure these voltages.
M I C R O W A V E S Y S T E M P A R T S
Figures 20 and 21
11. NGC-3062-1 HV Transformer (2 per oven, 1 per kit) - USA, Mexico, Brazil,
S. Korea
NGC-3062-2 HV Transformer (2 per oven, 1 per kit) - Europe, Asia, Pacific,
Australia, UK, Ireland
NGC-3062-3 HV Transformer (2 per oven, 1 per kit) - Japan
12. NGC-3020 High Voltage Capacitor (2 per oven, 1 per kit) - USA, Mexico,
Brazil, S. Korea
NGC-3020-2 High Voltage Capacitor (2 per oven, 1 per kit) - Europe, Asia,
Pacific, Australia, UK, Ireland,
Japan 50 Hz
100207 High Voltage Capacitor (2 per oven, 1 per kit) - Japan 60 Hz
T H E M I C R O W A V E S Y S T E M 27
11 12
13 14
F I L A M E N T A N D H I G H
V O L T A G E T E R M I N A L S
25
23 22 21 20
15
16
17
18
19
15
24
( O R G )
( B L K )
F I G U R E
20: Microwave System Parts
FA F
F I G U R E
21: Microwave System Parts
A N T E N N A
26
27
28
C O O L I N G
F I N S
13. 100481 High Voltage Diode (x2)
14. Mag Fan Relay, Generic
NGC-3030-1 North America
NGC-3030-4 Europe, Asia-Pacific Multiphase
NGC-3030-7 Europe Single Phase
NGC-3030-12 Brazil Single Phase
Mag Fan Relay, SWY
NGC-3030-2 North America
NGC-3030-6 Europe, Brazil Single Phase
NGC-3030-9 Europe, Asia-Pacific Multiphase
Mag Fan Relay, SBK
NGC-3030-3 North America
NGC-3030-13 Europe, Brazil Single Phase
NGC-3030-14 Indiana/North Carolina
NGC-3030-15 Europe, Asia-Pacific Multiphase
Mag Fan Relay, Additional*
15. NGC-3061-1 Filament Transformer (2 per oven, 1 per kit) - USA, S. Korea
15. Continued:
NGC-3061-2 Filament Transformer (2 per oven, 1 per kit) - Europe, Asia,
Pacific, Australia, UK, Ireland,
Mexico, Brazil
NGC-3061-3 Filament Transformer (2 per oven, 1 per kit) - Japan
16. 100083
17. 101273
18. 101273
19. 101273
20. 100599
21. NGC-3015
22. NGC-3017
23. NGC-3016
24. 100186
25. NGC-3015
26. 102070
27. NGC-1163
28. 100684
Mag Cooling Fan
K3 Monitor Relay
K2 High Voltage Relay
K1 Filament Relay
F3 Fuse - 20 Amp
Magnetron (2 per oven, 1 per kit)
Wave Guide (Rear)
Wave Guide (Front)
Magnetron Wire
Magnetron (2 per oven, 1 per kit)
Magnetron Thermostat
Insulator, Adhesive
Screw #6 Sheet Metal
* See Comprehensive Part List, page 79.
28 T H E M I C R O W A V E S Y S T E M
M I C R O W A V E S Y S T E M C O M P O N E N T S
Below is a description of each component within the Microwave System.
High Voltage Capacitors
Capacitor rating is 0.91uF, 2500 VDC for USA,
Mexico, Brazil, and S. Korea.
Magnetron
Magnetrons supply the RF energy at 2.45 GHz and begin to oscillate when they are supplied with approximately 4.1KVDC at approximately .350 mA.
During operation each magnetron will output a nominal 1 kW of power.
Capacitor rating is 1.15 uF, 2500 VDC for
Europe, Asia, Pacific, Australia, UK, Ireland, and
Japan 50 Hz.
Capacitor rating is 0.85 uF, 2500 VDC for Japan
60 Hz.
High-Voltage Transformers
High-voltage transformers are a ferro-resonant design which limits fault currents and minimizes magnetron power changes due to input voltage changes. The high-voltage transformer supplies the high voltage for the Voltage Doubler Circuit.
They are controlled via the K2 relay.
High Voltage Diodes
Rated at 16 kVDC.
Monitor Relay (K3)
The monitor relay, K3, acts as a failsafe device in the Voltage Doubler Circuit. In its normal un-energized position, the monitor relay shorts L1 and L2.
If the K2 relay energizes the high-voltage transformers while the K3 relay is un-energized, the F3 fuse will blow.
W A R N I N G
: Never attempt to measure the voltage values of the high-voltage transformers with the high-voltage transformers enabled.
Lethal voltage will be present. Reference page 30 for proper measuring technique.
Magnetron Thermostats
The magnetron thermostats are open-on-rise thermostats. These thermostats are designed to open at
212ºF (100ºC), which triggers an F5 fault.
Filament Transformers
For better operation and reliability, the oven uses separate transformers in order to preheat the magnetron filament.
The control energizes the filament transformers for approximately five (5) seconds prior to energizing the Microwave Circuit via the high-voltage transformers. When in operation, the filament transformers supply approximately 3.15 VAC at 10 amps to each magnetron filament. The filament transformers are controlled via the K1 relay.
N O T E
: Both magnetron thermostats are wired in series. If one opens, the control will switch off both magnetrons until the thermostats close. The thermostats are self-resetting.
Magnetron Cooling Fan
The magnetron cooling fan supplies cooling air for both magnetrons. The fan operates at 208 or 240
(USA) / 230 (Intl) / 200 (Japan) / 220 (Latin
America) VAC and is controlled via the K7 relay
(see Item 14 on Figure 20).
F3 Fuse
The F3 fuse is a 20-amp, class CC fuse designed to blow in case of an over-current scenario, such as a high-voltage transformer or capacitor failure. The fuse also blows if the Monitor Circuit trips the failsafe.
If the oven does not have this relay installed, it is required that you order the relay kit through
Customer Service. See page 27, item 14 for part numbers. If you are unsure which kit to order, determine the software type before contacting
Customer Service.
T H E M I C R O W A V E S Y S T E M 29
31
32
33
34
35
36
29
30
37
F I G U R E
22: Wave Guide Cover/Wave Guide Removal and Replacement
To determine software type,
1. Make sure the oven is in the
COOLING
DOWN
/
OVEN OFF mode.
2. Simultaneously press the
BACK and
ENTER keys.
3. Enter code 9-4-2-8 (
W
-
H
-
A
-
T
) and press
ENTER
.
4. The top line on the screen will display the word
TEST, followed by the software type (for example,
V
2
SWY
, or
TRNADO
).
1. Locate the fourteen (14) #8 sheet metal screws securing the broken wave guide cover. If the screw heads are dirty, it will be necessary to clean the heads thoroughly.
C A U T I O N
: Do not strip the screw heads.
2. Remove the fourteen (14) #8 screws. The cover should come loose with gentle pressure.
W A V E G U I D E C O V E R R E P L A C E M E N T
The wave guide covers keep moisture and debris out of the wave guides. If contamination gets into the wave guides, the life of the magnetrons may be shortened. Be careful to not allow debris to enter the wave guides when replacing the covers.
To remove the wave guide covers, reference Figure
22 and follow the steps below:
D O N O T remove the two right and left-most screws (Item 30). These screws secure the wave guides to the oven floor. Only remove them if the wave guide is also being serviced.
3. Remove the old wave guide cover and discard, unless otherwise specified.
N O T E
: It may be necessary to gently pry the wave guide covers to remove them from the oven floor as they are sealed with
RTV.
30 T H E M I C R O W A V E S Y S T E M
4. Using acetone, clean the oven floor where the new wave guide cover will sit.
5. Apply a 1/8” diameter bead of high temperature
RTV (included with Item 29) along the outside edge of the wave guide cover flanges.
4. Remove the two (2) right and left-most screws
(Item 30) that secure the wave guide to the oven floor.
W A V E G U I D E R E P L A C E M E N T
1. Remove the wave guide cover. See
WAVE GUIDE
COVER REPLACEMENT on page 29.
2. Remove the right side panel and frame support
(Item 32).
5. The wave guide should now be loose enough to easily slide out from the right side of the oven.
N O T E
: It is important to use the correct high temperature
RTV as supplied by TurboChef.
N O T E
: Be careful to not damage the insulation when removing the wave guide.
6. Place the new wave guide cover in place. Secure with the fourteen (14) screws provided with Item
29
.
6. Install the new wave guide using the mounting screws provided with the kit (Item 34 if rear wave guide, Item 37 if front).
7. Wait 15 minutes for RTV to cure.
8. Warm oven to set temperature and re-check the tightness of screws. Tighten if necessary.
C A U T I O N
: Do not pinch insulation between the wave guide and oven bottom.
7. Reinstall the wave guide cover.
W A R N I N G
: Inside of oven and IR element are HOT! Use extreme caution during step 8.
8. Reinstall the side panel and apply power to the oven.
W A V E G U I D E / W A V E G U I D E C O V E R P A R T S
Figure 22
29. NGC-3036
36. NGC-3015
37. NGC-3016
Kit, Wave Guide Cover (Includes
30. 101666
31. 101701
32. NGC-1047
33. 102809
Item 31 and sealant)
Screws, #8-32 x 1/2, Cap
Screws, #8, SST
Support, Frame
Screws, #8-32 x 3/8” CSK (100
34.
NGC-3017
35. NGC-3015
Assy, Wave Guide, Rear
Magnetron, Rear
º
)
Magnetron, Front
Assy, Wave Guide, Front
H I G H V O L T A G E A N D F I L A M E N T T R A N S F O R M E R
R E P L A C E M E N T
Wiring the High-Voltage Transformers
The proper reinstallation of the high-voltage and filament transformers is critical. Upon removing a high-voltage transformer, make sure to note where each wire was installed. Refer to the oven schematics (pages 55-63) detailing the proper wiring.
Specifically, T1 and T2 are located in the top-right corner of the schematics.
As shown in the schematics, transformers are installed mirror opposite and wired 180
º out-ofphase. It is essential for longevity that the high-voltage transformers remain 180º out-of-phase. This can be checked by placing a volt meter across terminals
T1-1 and T2-1 .
3. If replacing the front wave guide, use the NGC-
3016 kit. If replacing the rear wave guide, use the NGC-3017 kit.
With the Microwave System energized, the volt meter will read the incoming voltage (different readings for different countries).
If the meter reads 0 VAC , the
T H E M I C R O W A V E S Y S T E M 31 high-voltage transformers are most likely wired inphase. As a last check, energize the Microwave
System and verify the voltages between the taps on each high-voltage transformer. The wiring issue must be corrected prior to returning the oven to service, as the voltages must be: o o o o
NORTH AMERICA
: 208 VAC
240 between
1 & 3.
LATIN AMERICA
: 220 VAC
JAPAN
: 200 VAC
INTERNATIONAL
: 230 VAC between 1 & 2 and
N O T E
: The terminals with the orange dot or the orange wire always go to terminal 3 on USA models .
F I G U R E
23: Microwave Survey Meter Placement
Wiring the Filament Transformers
The installation of filament transformers is straightforward. Filament transformers are wired in-phase and in-line. Refer to the schematics on pages 55-63, detailing the proper wiring.
Specifically, FT1 and FT2 are located in the middle-far right edge of the schematics.
To verify correct wiring (North America), measure the voltages between terminals 1 & 2 and 1 & 3 on FT1 and FT2.
The voltages must be 208 and
240 VAC respectively.
N O T E
: The terminals with the orange dot or the orange wire always go to Terminal 3 on US models.
To verify correct wiring (International), measure the voltage between the taps on FT1 and FT2. The voltage must be 220 VAC (Latin America), 200 VAC
(Japan), or 230 VAC (International).
M E A S U R I N G R F L E A K A G E F O R M I C R O W A V E S A F E TY
An RF (microwave) leakage test must be performed at the conclusion of the following service tasks: o o o
Door removal, replacement and/or adjustment
Wave guide removal and/or replacement
Magnetron removal and/or replacement
W A R N I N G
: If the unit fails the radiation test (leakage greater than 4 mW/cm
2
), the oven must be taken out of service immediately until the defect is corrected. In addition, the CDRH
Regulations 21 Subpart C, 1002.20 requires that leakage readings of over 4 mW/cm
2 must be reported to the manufacturer.
Procedure for Measuring RF Leakage
1. Place the oven in
WARM UP and allow it to warm up to the set temperature (CCSP). This should take approximately 13 minutes if the oven is starting out cold.
2. Once the oven has warmed up, place the oven into
TEST MODE
(see page 14). Place a water load into the cook cavity. Water load must conform to the following specification: a. Volume: 275ml ± 15ml b. Temperature: 68 ± 9ºF (20 ± 5ºC) c. Vessel: Low form, 600 ml beaker with an inside diameter of approximately 3.35” (85 mm) and made of Pyrex or glass ceramic.
3. Position the microwave survey meter as shown in Figure 23.
4. Press and hold the
MGTRON soft key to energize the Microwave System.
32 T H E M I C R O W A V E S Y S T E M
FA F
FILAMENT AND
HIGH VOLTAGE
TERMINALS
ANTENNA
F I G U R E
24: High Voltage Diode
F I G U R E
25: Magnetron
5. While holding the leakage.
highest leakage.
MGTRON vey meter around the outline of the oven door, keeping the tip of the meter in contact with and perpendicular to the oven door. Record the highest
6. Using the same procedure, measure the leakage with the oven door opened to the point just before the primary and secondary switches disengage.
Record the highest leakage.
T I P
: To hold the oven door open for this test, back out the top center screw around the perimeter of the oven door. Continue backing this screw out until the primary and secondary interlock switches disengage. As this point, tighten the screw until both switches re-engage.
7. Using the same procedure, measure the leakage around the oven’s entire exterior surface. Record the
H O W T O T E S T M I C R O W A V E C O M P O N E N T S
Testing the High-Voltage Diode soft key, move the sur-
The high-voltage diode (Figure 24) is assembled by connecting several 1000-1500 volt semiconductor diodes in a series to increase the reverse voltage capability. In the circuit, the high-voltage diode conducts to prevent the filament voltage from becoming positive, thus as the high-voltage winding of the transformer goes to 2400 VPK, the high-voltage capacitor is charged to 2400 volts. When the high-voltage winding starts to go toward negative, the high-voltage diode becomes non-conducting with the charged high-voltage capacitor in series with the high-voltage winding.
When the transformer gets to its negative peak of
-2400 VPK, the voltage applied to the filament is negative 4500 volts.
W A R N I N G
: Never attempt to measure high voltage directly.
How to Check a Diode
1. Disconnect the oven from the power source.
2. Fully discharge the capacitors.
3. Connect the voltage meter in series with the diode.
4. Using a multimeter set to DC voltage, connect one meter lead to one side of a 9-volt battery and the other lead to one side of the diode.
5. Connect the other side of the 9-volt battery to the other side of the diode. DC voltage should only be present on the meter in one direction.
6. Switch the meter leads on the diode, which will cause the opposite reading to be visible.
Depending on the voltage of the battery, voltage between 5-7 VDC should be present in only one direction and 0-0.1 VDC in the other direction.
T H E M I C R O W A V E S Y S T E M 33
How to Check a Capacitor
1. Disconnect the oven from the power source.
2. Fully discharge the capacitor.
3. Isolate the capacitor from the circuit.
4. Connect the ohmmeter between the capacitor terminals. The ohmmeter should momentarily indicate a low impedance and then slowly return to infinite resistance.
5. Reverse the ohmmeter leads and repeat Step 4.
6. Check each terminal to case. Infinite resistance
(open) should be indicated.
How to Check a Magnetron for Open/Shorted Filament
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. Figure 25.
3. An ohmmeter connected between the filament terminals (F, FA) should indicate a reading of less than 1 ohm. Figure 25.
4. A continuity check between either filament terminal and the magnetron chassis should indicate an infinite resistance (open).
How to Check a High-Voltage or Filament Transformer
1. Disconnect the AC power source and discharge the high-voltage capacitors.
2. Disconnect all the wires in question going to the transformer.
3. Use an ohmmeter to check the impedance of the primary and secondary winding. Refer to the high-voltage and filament transformer table below to determine if the transformer is OK. If the resistance is different then the table indicates, replace the transformer.
H I G H V O L T A G E A N D F I L A M E N T T R A N S F O R M E R R E S I S T A N C E T A B L E
H I G H V O L T A G E T R A N S F O R M E R S PRIMARY VOLTAGE, FREQ, TAPS,
AND RESISTANCE
NGC-3062-1
NGC-3062-2
NGC-3062-3
F I L A M E N T T R A N S F O R M E R S
208 VAC, 60 Hz, 1 & 2,
0.819–1.001
W
240 VAC, 60 Hz, 1 & 3,
0.972–1.188
W
230 VAC, 50 Hz, 1 & 2,
0.972–1.188
W
200 VAC, 50/60 Hz, 1 & 2,
0.784–0.958
W
PRIMARY VOLTAGE, FREQ, TAPS,
AND RESISTANCE
NGC-3061-1
NGC-3061-2
208 VAC, 60 Hz, 1 & 2,
17.49–21.37
W
240 VAC, 60 Hz, 1 & 3,
20.61–25.19
W
230 VAC, 50 Hz, 1 & 2,
18.99–23.21
W
NGC-3061-3 200 VAC, 50/60 Hz, 1 & 2,
15.70–19.18
W
SECONDARY TAPS AND
RESISTANCE
4, Ground, 53.60–65.52
W
3, Ground, 57.52–70.30
3, Ground, 55.75–68.13
SECONDARY TAPS AND
RESISTANCE
W
W
4, 5, very low resistance - if reading is open, transformer has failed.
3, 4, very low resistance - if reading is open, transformer has failed.
3, 4, very low resistance - if reading is open, transformer has failed.
34 T H E M I C R O W A V E S Y S T E M
M I C R O W A V E S Y S T E M T R O U B L E S H O O T I N G
I S S U E
Magnetron
Troubleshooting
Guidelines
R E S O L U T I O N
W A R N I N G
: Never test the secondary voltages. Voltage on this side of the circuit is lethal, reaching up to 5000 volts!
All tests performed on the components are done with the oven unplugged and the capacitors discharged.
The capacitors in this oven utilize a device that will automatically discharge the voltage.
W A R N I N G
: Always verify the capacitor is discharged before servicing the components.
Discharging can be done by unplugging the oven and then short across the red wire on each capacitor to the chassis with an insulated screwdriver.
F3: Magnetron
Current Low
1. Remove the top and right side covers.
2. Enter the test mode. (From the
OVEN OFF mode, simultaneously press
BACK and
ENTER keys, enter the code 9-4-2-8 and press
ENTER
).
3. Place amp meter on the brown (US ovens) or blue (International ovens)
"ct" wire for amp reading. Wire is coming from the primary side of the
HV transformers and looping through the black plastic current transformer on the main control board and back to the HV transformers.
4. Press and hold the
MGTRON soft key on the keypad to energize the magnetrons.
5. Observe the amperage on the meter. Typical readings are: o
NORTH AMERICA
: 12-14 amps at 240VAC/13-16 amps at 208VAC.
o o o
INTERNATIONAL
: 12-15 amps at 230VAC
BRAZIL
: 12-15 amps at 220VAC
JAPAN
: 16-17 amps at 200VAC
If proper amperage appears but takes longer than 2 complete seconds to appear, call TurboChef Tech support for assistance. If amperage is present but lower than typical readings, perform the troubleshooting steps in the previous pages of this section. If amperage is not present, check the condition of the F3 fuse. Fuse must be a 20-amp fuse and is the right-most of the three fuses on the bottom of the oven.
If fuse has failed, replace the fuse after troubleshooting (previous pages of this section). If fuse has not failed, check the incoming (primary side) voltage to the high-voltage transformers.
T H E M I C R O W A V E S Y S T E M 35
I S S U E
F3: Magnetron
Current Low (cont.)
F3 Fuse Blown
R E S O L U T I O N
W A R N I N G
: Never try to check the secondary voltages of the High
Voltage Transformers.
With the top cover removed, safe access to the three (if US oven)/two (if
International oven) terminals on the top of the transformers is available.
NORTH AMERICA
- Place the AC voltmeter across terminals 1+3. Press and hold the
MGTRON soft key. Voltage present should be 240 +/- 10%.
INTERNATIONAL
- Place the AC voltmeter across terminals 1+2. Press and hold the
MGTRON soft key. Voltage present should be 230 +/- 10%.
JAPAN
- Place the AC voltmeter across terminals 1+2. Press and hold the
MGTRON soft key. Voltage present should be 200 +/- 10%.
If voltage is present on both high-voltage transformers, perform the component troubleshooting steps in the previous pages of this section.
If voltage is not present, check for 24VDC control voltage from I/O board to the K2 relay. Access voltage reading from the "QC3" connection located at the bottom right side of the wiring harness. When the
MGTRON key is pressed and held, 24VDC should be present on pins 1+5. Reference the schematics (pages 55-63) for physical location of pins on QC3 connector.
If voltage is present at the connector, inspect the K2 relay and the wiring.
Unplug the oven and replace relay if necessary.
If voltage is not present at connector, check wiring connections at the control board on the 40-pin connector. Also check the wiring between the two connectors. Unplug the oven and replace control board if necessary.
Replace the F3 fuse and determine why F3 fuse opened.
Generally, the F3 fuse opens for one of three reasons: a. HV transformer primary winding shorted: Unplug the oven and replace the HV transformer. Follow troubleshooting on page 33 to determine cause of failure.
b. HV capacitor shorted or failing: follow troubleshooting on page 33.
If necessary, unplug the oven and replace the HV capacitor.
N O T E
: A failing HV capacitor will typically cause the HV transformer that supplies power to the failing capacitor to draw excessive current, which may open the F3 fuse.
36 T H E M I C R O W A V E S Y S T E M
I S S U E
F3 Fuse Blown, cont.
R E S O L U T I O N c. Monitor circuit fault: Verify operation of all interlock switches.
In addition, check the Fault Log. If the monitor switch opened prior to the primary and secondary, the control would have recorded the occurrence. See page 25 as well as Chapter 6 (Oven Door) for troubleshooting (see
F
4
MONITOR
).
Mag 1 or Mag 2 Not
Working or Food Not
Cooking Evenly
Magnetron Circuit is Drawing Excessive
Current.
Determine which magnetron is not oscillating by placing a clamp-on amp meter on the primary winding of each high-voltage transformer and energizing the Microwave System.
1. Amp = 0. High-voltage transformer not energizing.
Check K2 relay and wiring going to suspect high-voltage transformer. o o
K2 relay or wiring bad: Replace K2 relay and/or repair wiring.
K2 relay OK: Check high-voltage transformer. See the table on page
33 for resistance values. Unplug the oven and replace high-voltage transformer if defective.
2. Amps = 3 amps on high-voltage transformer. Magnetron is not oscillating, but high-voltage transformer is energizing. o o
Diodes failed: Unplug the oven and replace the diodes.
Diodes OK: Unplug the oven and replace the defective magnetron.
Measure resistance of high-voltage capacitor(s).
Resistance should start out in the megohm range and continue to rise as the probes are held on the capacitor. If the resistance is low (less than the megohm range), unplug the oven and replace the capacitor. Visually check the associated high-voltage transformer primary winding for signs of overheating (winding is very dark and discolored). If transformer primary winding looks bad, replace it.
High Voltage and/or
Filament Transformer(s)
Faulty
Wave Guide
Covers Broken
Determine if the high-voltage or filament transformer(s) is defective.
Use an ohm meter to measure the primary and secondary winding resistances. Refer to the high-voltage and filament transformer table on page 33 to determine if the transformer is OK. If the resistance is different then the table indicates, ensure the oven is unplugged and replace the transformer.
Replace the wave guide covers.
Follow the instructions on pages 29-30 and
Figure 22 on page 29. Inspect the wave guides for debris. If debris is present, replace the wave guide and the magnetron.
The Oven Door
T H E O V E N D O O R 37
The proper fit and adjustment of the oven door is essential for safe and reliable operation of the NGC
(Tornado) oven.
The oven door provides three primary functions:
1. To protect the operator from the hot convection airflow.
2. To protect the operator from exposure to microwave energy.
3. To actuate the interlock switches.
3. Locate and remove the #38 screws (3 each side).
4. Remove the plastic caps.
NOTE
: The 10x32 screws do not need to be removed, as they are used for adjusting the door.
5. Remove the oven door by pulling the door away from the oven. It will slide off the hinges.
R E M O V I N G / R E I N S T A L L I N G T H E O V E N D O O R
To remove or reinstall the oven door, follow the steps below. Refer to Figure 26.
1. Ensure the oven has cooled.
2. Open the oven door to its full open position.
Locate the two (2) thru holes in the bottom of the left and right hinge assemblies. Insert a screw or nail into the holes to keep the hinges open while removing the oven door.
O V E N D O O R P A R T S
Figure 26
38. 102809 #8-32 x 3/8” PFH CSK
39. NGC-3067 Assy, Oven Door (Traditional)
NGC-3067-2 Assy, Oven Door (SBK)
40. NGC-1061 Hinge Block
41. 102804 Right Hinge
42. 102805
43. 101381
Left Hinge
#10-32 x 1/2” Hex SS
44. 102140
45. 102350
46. 101191
#10 Flat
#10 Split Lock
Cap, Hole
41
40
39
38
2
42
F I G U R E
26: Oven Door Removal & Parts
43 44
45 46
38 T H E O V E N D O O R
A D J U S T I N G T H E O V E N D O O R
W A R N I N G
: Procedure should be done while oven is hot. As a result, exercise extreme caution when adjusting the door.
W A R N I N G
: Check for excessive Microwave
Leakage after adjusting the Cook Door. See page 31 for proper procedure.
1. Open the oven door and remove the plastic caps.
P R E P A R I N G T H E O V E N F O R S W I T C H A D J U S T M E N T
1. Disconnect the power to the oven and remove left and right side covers.
2. Ensure that the 3 screws on each side of the door are tight.
3. Remove the control panel, two 11 /
32 wiring from I/O board.
” nuts and
2. Ensure oven door assembly is properly adjusted and all mounting screws are secured (see previous section on adjusting the oven door).
4. Loosen the hex screws and close the door.
3. Ensure the left and right hinge assemblies are properly mounted to the oven flange.
5. Tap the center of the door to allow door and frame to align properly.
Oven Burn-In Procedure
If the oven is already at its set temperature at the time of service, skip this procedure.
6. Tighten screws and reinstall the control panel.
7. Plug in the oven and perform a MW leak test (see page 31 for instructions).
1. Apply power to oven.
2. Simultaneously press the
BACK and
ENTER keys.
Critical Adjustment Notes
1. The doors in Figures 27 and 28 are adjusted incorrectly. Note how the bottom (Figure 27) and top (Figure 28) of the door can be rotated away from the Flange.
3. Enter 8-6-4-8 (
4. Press
BURN
-
IN
U
-
N
. The oven will warm up and idle for 25 minutes.
-
I
-
T
), then press
ENTER
.
C O R R E C T I V E A C T I O N
: Loosen the hex screws and push the door towards the flange and retighten. The hinge springs will naturally pull the door to the flange. Tapping the center ensures a level surface and a proper seal, as opposed to pushing one end (which could cause the opposite end to lift away from the flange).
Pull the door open only 0.25” (6 mm) and let go of the handle. The door must completely snap shut on its own. If the door sticks and force is needed to finish closing it, it is out of adjustment.
NOTE
: See Figure 26, page 37, Items 43-46 for illustration of hardware.
A D J U S T I N G T H E P R I M A R Y A N D S E C O N D A R Y
I N T E R L O C K S W I T C H E S - O L D S W I T C H S E T U P
The old switch assembly is identifiable by the primary and secondary interlock switches being located on the left side of the oven. Also, the serial number of the oven will follow the formatting below (X = variable digit/letter):
NGC-XXXXX (North America)
NGCXX-XXXXX (International)
To properly adjust the switches, follow the procedure below:
1. Ensure the oven door is adjusted properly. Refer to the previous section on adjusting the oven door.
2. Unplug the oven.
T H E O V E N D O O R 39
F I G U R E
27: Mis-adjusted Oven Door
F I G U R E
28: Mis-adjusted Oven Door
3. Open and close the door several times to ensure it closes smoothly and the door actuator (Item 47) clears the slot in the flange. Reference Figure 29.
The actuator must not hang or rub the opening or flange. Carefully bend to clear opening.
because the door can move as a result of temperature change.
9. Securely tighten Items 49 and 50 after any final adjustments have been made.
4. While the oven door is closed, verify that the bottom of the toggle is 85º to the bottom of the frame (Figure 29). If not, use items 75 and 76
(page 42) to achieve proper angle.
5. Temporarily adjust the primary and secondary interlock switches by loosening the #8-32 screw
(Item 49) and the two (2) #4-40 screws (Item
50). Figure 29.
6. Rotate the interlock switches (Item 51) until the gap between the switch paddles and the switch body is 0.02” (0.5mm). Figure 29.
7. Restore power to the oven. Allow the oven to warm to its set temperature.
10. Complete the steps for measuring RF leakage found on page 31. Make further adjustments if necessary.
N O T E
: High-temperature grease (Item 62) must be present between the torsion spring and the switch bracket assembly to ensure smooth action.
P R I M A R Y A N D S E C O N D A R Y I N T E R L O C K S W I T C H
A D J U S T M E N T S A N D P A R T S
Figure 29
47. NGC-1076-2 Actuator, Door
48. 102809 Screw, #8-32 x 3/8” 100Þ CSK
49. 102921
50. 101557
Screw, #8-32 x 3/8”
Screw, #4-40 x 1 1/4”
51. 102012 Interlock Switches
52. NGC-3033 Assy, Door Switch*
8. Allow the oven to remain at the set temperature for ten (10) minutes after warm up before making any final adjustments, which may be needed
*See Figure 30 for assembly detail.
40 T H E O V E N D O O R
51
50
52
49
APPLY HI
-
TEMP
GREASE TO AREA
48
47
TOGGLE SHOULD BE LESS THAN
OR EQUAL TO 85 º DOWN
SWITCH GAP
=
0.020”
F I G U R E
29: Correct Primary and Secondary Interlock
Adjustment and Parts - Old Switch Setup
D O O R S W I T C H A S S E M B L Y A N D P A R T S
Figure 30, next page
53. NGC-1072 Bracket Latch
54. 102012 Switch, Micro, 0.1A/125VAC
55. NGC-1087 Spring Door Latch
56. NGC-1073 Toggle, Latch
57. 101119
58. 100059
Pin, Clevis, ø3/16 x 1” Lg
Bearings, Bronze,
3/16ID x 5/16OD x 1/4” Lg
59. 101557 Screw, #4-40 x 1.25” Lg,
PPHD, CRES
Screw, #8-32 x 3/8”, Internal 60. 102921
Tooth Sems, PPHD, SS
61. NGC-1126 Plate, Door Switch
62. NGC-3006 Grease, USDA H-1, Food Grade
63. 101296 Ring, E-clip
Assembly Notes
1. Ring, e-clip (Item 63) is supplied with Item 56.
2. Spring and bracket must be lubricated with hightemperature pure FM grease (Item 62).
3. Assembly must be hand-tightened prior to any final adjustment.
A D J U S T I N G T H E M O N I T O R S W I T C H - O L D S E T U P
The old switch assembly is identifiable by the monitor switch being located on the right hinge assembly.
Also, the serial number of the oven will follow this formatting (X = variable digit/letter):
NGC-XXXXX (North America)
NGCXX-XXXXX (International)
To adjust the switch, follow the steps below.
1. Ensure the oven door is adjusted. Refer to
ADJUST
-
ING THE COOK DOOR on page 38.
2. Turn on oven and bring it to the set temperature.
W A R N I N G
: Oven surfaces are HOT! Use extreme caution when making adjustments.
3. Open and close the oven door several times to ensure the door closes smoothly and the door actuator (Item 47) clears the slot in the flange.
Reference Figure 29.
4. Disconnect oven from power source.
5. To adjust the monitor safety switch (Figure 31), loosen the #8-32 screw and the two (2) #4-40 screws (Items 68 and 69) securing the switch.
6. Rotate the monitor safety switch (Item 65) until the gap between the switch paddle and the switch body is 0.02” (0.5 mm).
7. Open and close the oven door several times to make certain the adjustment is correct.
8. Tighten all screws.
9. Reconnect oven to power source.
10. Allow oven to sit at the set temperature for 10 minutes and confirm all adjustments.
M O N I T O R S A F E T Y S W I T C H P A R T S
Figure 31, next page
64. 102804
65. 102012
Hinge, Right
Switch, Limit, Micro
66. NGC-1126 Plate, Door Switch
67. 101912
68. 102921
69. 102902
Standoff, #8-32F/Fx1 in S
Screw, #8-32 x 3/8”
Screw, 4-40 x 5/8”
62 55
2
56
60
54
53
59
63
1
F I G U R E
30: Door Switch Assembly and Parts - Old Switch Setup
68 x2
69
65
67
67
68
REF
F I G U R E
31: Monitor Switch Adjustment and Assembly -
Old Switch Setup
T H E O V E N D O O R 41
58 x2
61
57
64
66
68
42 T H E O V E N D O O R
72 71
APPLY HI
-
TEMP
GREASE TO AREA
70
2
73
74
1
75
F I G U R E
32: Primary Switch Adjustment and Parts -
New Switch Setup
3
76
A D J U S T I N G T H E P R I M A R Y I N T E R L O C K S W I T C H -
N E W S W I T C H S E T U P
The new switch assembly is identifiable by the primary switch being located on the left side of the oven. Also, the serial number of the oven will follow the formatting below (X = variable digit/letter):
NGC D(5 thru 9)
NGCXX
1. When the oven completes
BURN IN
(if required, see page 38), closely examine the latch toggle position using the door switch gauge
(Item 75).
XXXX (North America)
D(5 thru 9) XXXX (International)
P R I M A R Y S W I T C H A D J U S T M E N T A N D P A R T S
Figure 32
70. 102809
71. 102921
72. 101555
73. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 3/4”
Interlock Switch
74. NGC-3033 Assy, Door Switch*
75. Adjustment Tools (included with Item 74)
NGC-1215 Door Switch Gauge
NGC-1340 Shim Tool, 0.060”
NGC-1344 Shim Tool, 0.030”
76. NGC-1169-1 Shim, 0.030”
NGC-1169-2 Shim, 0.045”
2. If the toggle is past the top of the window, you must correct the toggle's position by installing an 0.030” Shim (Item 76). See Figure 32.
*Refer to FSB-10057 (included with Item 74) for instructions on converting NGC-3033 kit into the new switch assembly.
3. Verify position of toggle by opening and closing the oven door.
4. With the toggle correctly adjusted and the door closed, adjust the primary switch by loosening the two #4-40 screws and #8-32 screw.
Assembly Notes
1. Tip of toggle must be within window notch.
Optimal is centered or below centered when the oven is hot.
5. Using a 0.030” (0.762 mm) spacer as a template
(included with Item 74), adjust switch lever position to a maximum allowable distance of
0.030” (0.762 mm).
2. Tip of toggle adjustment notch. Toggle must be within notch when oven is hot.
3. If toggle “hangs” in position as shown, decrease number of shims.
6. Open and close the door several times to verify the switch gap.
82
83 x2
78 x2
T H E O V E N D O O R 43
77
79
81 80
82
80 81
82
F I G U R E
33: Secondary/Monitor Adjustment and Parts -
New Switch Setup
A D J U S T I N G T H E S E C O N D A R Y A N D M O N I T O R
I N T E R L O C K S W I T C H E S - N E W S W I T C H S E T U P
1. Disconnect power to the unit.
2. Disconnect the 40-pin connector from the I/O board to allow maximum clearance.
3. Using the 0.060” (1.524 mm) spacer as a template (included with item 74), adjust the secondary switch.
NOTE
: This will also adjust the monitor switch.
4. Open and close the door several times to verify the switch gap.
NOTE
: The absolute maximum gap should not exceed 0.060” (1.524 mm).
5. Re-connect the 40-Pin connector to the I/O board and apply power to the unit.
6. Simultaneously press
BACK and
ENTER keys.
7. Enter 9-4-2-8, then press
ENTER
.
8. Open the oven door and verify P, S, and M
F I G U R E
34: Secondary/Monitor Switch Assembly -
New Switch Setup disengage in sequence.
9. Close the oven door and verify the M, S, and P engage in sequence.
10.Energize the Microwave System and open the door.
11.Verify the W indicator is backlit, meaning the oven microwave system turns OFF when the door is open.
S E C O N D A R Y A N D M O N I T O R S A F E T Y S W I T C H P A R T S
Figure 33 and 34
77. 102804
78. 102012
Hinge, Right
Switch, Limit, Micro (x2)
79. NGC-1126 Plate, Door Switch
80. 101914 Standoff, #8-32 F/F x 1”, 5/16”
81. 101915
DIA
Standoff, #8-32 M/F x 5/16”,
1/4” DIA (attached to outside
82. 102921
83. 101558 of Item 80.)
Screw, #8-32 x 3/8”
Screw, 4-40 x 1.125”
44 T H E O V E N D O O R
5 85
84
1
93
R SAFE USE TO AVOID POSSIBLE
E ENERGY
DO NOT attempt to operate this oven with:
SIVE MICROWAV
UNE EXPOSITION
or Sealing Surface.
2. Door that does not close properly.
PRECAUTIONS FO
EXPOSURE TO EXCES
1. Object caught in Door.
3. Damaged Door, Hinge, Latch,
FIN D'EVITER s correctement.
che ou la surface r cet four: brises.
le gond, la clen objet qui obstrue la porte.
1. S'il y a un
3. Si la porte, d'etancheite sont
2. Si la porte ne se ferme pa
Ne tentez pas de fair fonctionne
PRECAUTIONS A A
DANGEREUSE AUX MICRO-ONDES.
101
94
98 AR 2
EE NUMBER
6
800-908-872
CUSTOMER SERVICE TOLL FR
99 6
100 x2
87
90 x2
95
91
ENERGY IBLE
PRECAUTIONS FOR SAFE USE TO AVOID POSS
EXCESSIVE MICROWAVE
DO NOT attempt to operate this oven with: ling Surface.
properly.
oor.
not close
Hinge, Latch, or Sea t four: ment.
e la porte.
UX MICRO-ONDES.
air fonctionner ce nd, la clenche ou la surfac
3. Damaged Door,
2. Door that does ferme pas correcte brises.
un objet qui obstru
3. Si la porte, le go
1. S'il y a d'etancheite sont
2. Si la porte ne se Ne tentez pas de f
DANGEREUSE A
1. Object caught in D
EXPOSURE TO
PRECAUTIONS A AFIN D'EVITER UNE EXPOSITION
92 x6
97 x17
5
F I G U R E
35: Oven Door Assembly
86 x2
88 89 96 x2
O V E N D O O R A S S E M B L Y
See Figure 35 above. For mis-adjustments, see
Figures 27 and 28 on page 39.
O V E N D O O R P A R T S
Figure 35
84. NGC-3067* Door, NGC, Generic*
NGC-3067-2* Door, NGC, SBK*
85. NGC-3021
86. NGC-1061
87. 102750
Kit, Shunt Plate
Hinge Block
Handle, Door, Generic
NGC-1216
88. NGC-1076-2
89. NGC-1132
90. 102945
Handle, Door, SBK
Actuator, Door
Shim, Door Latch
Bolt, 1/4”-20 x 1.00
91. NGC-1138
92. 102809
Label, Precaution
#8-32 x 3/8” CSK 100°
93. NGC-1165
94. NGC-1125-1
NGC-1125-2
95. NGC-1127
96. 102748
Label, Caution Empty
Door Insulation 1
Door Insulation 2
Channel, Door Handle
Screw, #8-32 x 3/8”,
Torx Security
Screw, #8 x 1/2” PTH 97. 101688
98. 102698
99. NGC-1155
Tape, Aluminum
Name Plate, TurboChef
100. 101293 Nut, Push, 1/8”
101. NGC-1170 Label, Service
* Includes items 85 - 101.
T H E O V E N D O O R 45
16
9
12
13
10
4
3
1
2 6
5 8
15
11
7
14
SHUNT CAVITY/PLATE
Tightening Sequence
F I G U R E
36: Oven Door Assembly: Tightening Specs
12
11
13
14 8
1
4
5
15
9
10
17 7 3 2
SHUNT ASSY/DOOR COVER
Tightening Sequence
6 16
Critical Adjustment Notes (Figure 35)
1. Orient with the gasket seam at the bottom of the door assembly. Gasket should be straight with no twists or pinching.
2. Attach insulation (Item 94) to the inside of the door cover using aluminum tape (Item 98).
D O N O T block openings at bottom.
3. Item 94 (insulation) not shown for clarity.
4. Door should be flat without twisting or warpage after tightening all hardware.
5. Refer to the chart to the right for torque specs.
Refer to Figure 36, above, for tightening sequences.
6. Attach Item 99 with adhesive backing using the two locating holes on the front cover.
S C R E W T O R Q U E C H A R T
Refer to Figures 35, 36.
P A R T
90. Bolt, 1/4”-20 x 1.00
85. Nut, Keps #8-32
(Assembled by factory)
96. Screw, 8-32 x 3/8”
Torx Security
97. Screw, 8 x 1/2” PTH
T O R Q U E
V A L U E
80 In-Lbs
(9.04 Nm)
21 In-Lbs
(2.37 Nm)
21 In-Lbs
(2.37 Nm)
21 In-Lbs
(2.37 Nm)
46 T H E O V E N D O O R
I N T E R L O C K S W I T C H T R O U B L E S H O O T I N G
I S S U E R E S O L U T I O N
“Cook Door Open”
Message
Determine which interlock switch is open. Access
TEST MODE to view interlock switch status.
1. P S M - Primary and/or secondary interlock is open (old switch setup).
P SM - Primary interlock is open (new switch setup).
Verify action of the latch assembly and oven door. When the door closes, the actuator should freely clear the slot on the flange. When it strikes the toggle latch, it should rotate smoothly to its closed position. o
Actuator doesn’t clear slot: Bend or adjust actuator. If the actuator o is worn or has yielded, replace the actuator.
Toggle doesn’t rotate freely or smoothly: Replace any worn parts. o
Clean assembly and re-lubricate all rotating parts. Be sure to grease the torsion spring (See Figure 30).
Actuator and toggle OK: Check adjustment and wiring on the interlocks. If adjustment is necessary, see page 38 (old setup) or page
42 (new setup) for the proper adjustment procedure.
2. PS M – Monitor switch is open (old switch setup).
P S M – Secondary and/or monitor switch is open (new switch setup).
Verify that the door closes freely and completely. o
Door does not close freely: Remove obstructions or readjust the oven door per the instructions on page 38. o
Door closes properly: Readjust the monitor safety switch (old switch setup)/secondary and monitor (new switch setup) per the instructions on page 38 (old setup) and 42 (new setup).
The Convection Circuit
T H E C O N V E C T I O N C I R C U I T 47
The Convection Circuit provides the high-temperature airflow required to brown and cook food items.
C O N V E C T I O N C I R C U I T C O M P O N E N T S
The following is a description of each component within the Convection Circuit and how each acts within the circuit. Figure 37 below shows a block diagram of the Convection Circuit.
Motor Controller (BMSC)
The motor controller is proprietary and will only operate the convection motor described above. The motor controller is controlled on command from the
I/O control board and a 0-10VDC speed command from the I/O control board.
Main Convection Heater
The main convection heater is an open-coil style heater rated at 3300 watts at 208 VAC with a resistance of 13.11 Ohms. The convection heater is controlled by the K4 solid state relay.
High Limit Thermostat
The high limit thermostat is a 250 VAC, 3-pole, manual reset thermostat with a trip point of 572ºF
(300ºC). The thermostat, which interrupts power to both the main convection heater and the IR element, should never operate during normal oven operation.
Convection Motor
The convection motor is a brushless AC switch reluctance type. Its top speed is 7100 RPM at 1 HP. The motor is controlled by a proprietary controller.
BOTTOM IR CONTROL
MAIN HX CONTROL
WH-28
WH-30
+24
RD-19
SSR
B2
K5 K4
A2
B1 A1
OR540
BL510
OT1 - HI-LIMIT
MANUAL RESET
32
C
NC
31
22
C
12
C
NC
21
NC
11
HT520
1
HX ELEMENT
3300 WATTS
13.1 OHMS
BOTTOM IR
3000 WATTS
14.4 OHMS
2
L1
MOTOR SPINS
COUNTER-CLOCKWISE
FROM BACK
M4 GREEN
M3 WHITE
M2 RED
M1 BLACK
4
3
2
1
240 VAC
3 PHASE
OUT
BMSC
BLWR
MTR
F I G U R E
37: Convection Circuit Block Diagram
3
2
1
SPD CMD
200-240
VAC IN
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
I/O COM
4
5
6
1
2
3
GROUND (GREEN)
L2
L1
RD-24
BK-25
WH-31
BK-32
OR-9
L2
48 T H E C O N V E C T I O N C I R C U I T
1
1
109 x10
110
105
114
104 x6
103
102 x8
This de
Op erat
1. Th
2. Th
This O
DHHS F
To pr ck, c vice c is de is de vice must acc undesir ed op ovide c t to the f ause har ncluding in omplies with applic erformanc
NO ollo y in
TICE: mful in renc e Standar e tha able sec
C R onditions: terfe tions of ules renc e.
y cause d 21 CFR 1030.
onnec t to pr
WA otec ly gr
RNING: ounded outlets only
10.
elec corre trique br ctem er pr
AV otec
ERT tion c trical
ISSEMENT ontinue c erre.
t a un e pr ise c
107
113
111
112
106
F I G U R E
38: Convection Circuit Assembly and Parts/Item 105 (Blower Motor) Detail
C O N V E C T I O N C I R C U I T / B L O W E R M O T O R P A R T S
*
*
*
Figure 38
102. 101688 Screw, #8 x 1/2” PTH
103. NGC-1081 Cover, Motor
104. 100906 Nut, 1/4”-20, Flange
105. NGC-1025 Assy, Blower Motor
106. NGC-3007 Kit, Fan Blade
107. NGC-1024 Sealing Block, Blower
108. NGC-1023 Clamp, Blower Seal
109. 101688 Screw, #8 x 1/2” PTH
110. NGC-3011 Heater, Convection
111. 100443 Controller, Motor
112. NGC-3005 Relay, K4/K5 SSR
113. 100592 Fuses, F1 and F2 (12 Amp)
114. 102075 High-Limit Thermostat
** 115. NGC-1043 Gasket, Convection Heater
* If entire motor is needed, order NGC-1025.
If only hardware (e.g., screws, nuts) or seal is needed, call 800.90
TURBO or +1 214-379-6000.
** Not shown for clarity.
Assembly Notes
1. Cut insulation covering heater as shown.
108
T H E C O N V E C T I O N C I R C U I T 49
C O N V E C T I O N C I R C U I T T R O U B L E S H O O T I N G
I S S U E R E S O L U T I O N
F8: Heat Low
Oven Not Warming Up
1. Check that the blower motor is moving air.
o
Blower motor is not moving air: Check blower motor assembly and verify motor is stalled. Unplug oven and correct obstruction or replace motor. (For access to motor shaft, remove top panel.) o
Blower motor is moving air: Verify high-limit thermostat is not tripped. See the high-limit thermostat information below.
High-Limit Thermostat: o
Thermostat tripped: Reset and determine why the thermostat o tripped (See Figure 38, Item 114). Look for excess build up of grease inside the oven or any other source for a fire.
Thermostat is not tripped: Check main convection heater.
1. Convection heater is defective: Unplug oven and replace the convection heater and verify the K4 SSR (Figure 37) is not shorted across output.
2. Convection heater OK: Check the K4 SSR.
o o
K4 defective: Unplug oven and replace.
K4 OK: Unplug oven and verify all wiring. Verify P1 voltage on
I/O board is 5.0VDC (+/- 0.02) - see Figure 40, page 54.
F2: Cook Temperature
Low
1. Verify Cook Door Operation. o
“Cook Door Open” Message: Verify which switch is not actuating o and readjust. See pages 38-43.
Cook Door OK: Verify high-limit thermostat is not tripped. See the high-limit thermostat below.
High-Limit Thermostat: o
Thermostat tripped: Reset and determine why the thermostat tripped (See Figure 38, Item 114). Look for excess build up of o grease inside the oven or any other source for a fire.
Thermostat is not tripped: Check main convection heater.
1. Convection heater is defective: Unplug oven and replace the convection heater and verify the K4 SSR (Figure 37) is not shorted across output.
2. Convection heater OK: Check the K4 SSR.
o
K4 defective: Unplug oven and replace. o
K4 OK: Unplug oven and verify all wiring. Verify P1 voltage on
I/O board is 5.0VDC (+/- 0.02) - see Figure 40, page 54.
50 T H E C O N V E C T I O N C I R C U I T
I S S U E
F1: Blower Running
Status Bad
R E S O L U T I O N
1. Verify motor spins freely.
o o
Motor seized: Unplug oven and correct obstruction or replace motor.
Motor spins freely: Verify motor windings (see table below).
2. Verify motor windings are OK. Measure the resistance between windings and chassis. Unplug oven and replace motor if resistances do not agree with the values in the table below. If motor is OK, proceed to step 3, below.
3. Determine if status indicator “A” is highlighted/backlit in
TEST MODE
. o
“A” is highlighted/backlit.
a. Disconnect control wiring.
b. Ground OR-9 to chassis to remove backlight on “A”.
c. Keeping OR-9 grounded, check terminals on the control wiring plug for 0-10 VDC control voltage (reference drawing of QC3 plug on schematics (pages 55-63) while incrementing blower speed in
TEST MODE
(see
BLOWER SPEED
, page 15).
d. If DC voltage is present throughout all speed settings in
TEST
MODE
(see
BLOWER SPEED
, page 15), replace motor controller. If not, check harness and/or replace I/O board.
M O T O R W I N D I N G R E S I S T A N C E S T A B L E
T O
Black
Black
Red
Black, White or Red
F R O M
Red
White
White
Green
D E S C R I P T I O N
Winding (A-B)
Winding (A-C)
Winding (B-C)
Windings to Chassis
E X P E C T E D R E S I S T A N C E
2.0 – 2.6 Ohms
2.0 – 2.6 Ohms
2.0 – 2.6 Ohms
Open
IR Element and Catalytic
Converter
I R E L E M E N T A N D C A T A L Y T I C C O N V E R T E R 51
The IR Element and Catalytic Converter provide two very different, but essential functions.
of the airflow, thus the grease burns and breaks down into CO
2 and H
2
O as it passes through the catalytic converter. The catalyst will operate most efficiently at temperatures above 475ºF (246ºC). The IR element provides the bottom browning similar to a residual broiler or salamander type cooking appliance - required for cooking most food items. The IR element temperature is independently controlled in each recipe.
The catalytic converter scrubs the air to eliminate
VOCs and grease particulates that are liberated during the cooking process. It is important to properly care for the catalyst using only TurboChef
®
Oven Cleaner
(P/N 103180 USA, 103380 Intl) and distilled water. For more detailed information, see the catalytic converter section below.
C O M P O N E N T S
IR Element
The IR element - a dual coil type heater - is located in the bottom of the oven cavity. The first coil is the heating coil. The second is the IR thermocouple wire. The heating coil outputs 3000 watts at 208
VAC. The heating coil’s resistance is 14.4 ohms at room temperature.
The catalyst material is very sensitive to certain chemical compounds. Irreversible damage can occur if the catalyst is exposed to cleaning chemicals containing phosphates, NaOH, silicates, Na and
Potassium Salts. These chemicals are found in most commercial degreasers and cleaners; therefore, only
TurboChef
®
Oven Cleaner should be used.
C A U T I O N
: Clean the catalytic converter with TurboChef
®
Oven Cleaner and rinse thoroughly with distilled water. Let the catalytic converter air dry before reinstalling. If TurboChef
®
Oven Cleaner is not available, do not use a substitute. Use distilled water only.
I R E L E M E N T A N D C A T A L Y S T R E M O V A L
Refer to Figure 39 and the instructions below for removing the IR element and catalytic converter.
Removing the IR Element
1. Unplug the oven.
The thermocouple coil is a Type K thermocouple with a resistance of approximately 20 ohms at the splices located approximately 6 inches from the heater and 40 ohms measured at the extension wires at the I/O control board.
2. Disconnect the heater wires going to the EMI filter and the high-limit thermostat.
The IR element is controlled via the K5 solid state relay and the IR thermocouple via the I/O control board.
3. Locate where the IR element protrudes through the cook cavity walls and remove the snap rings
(Item 116) using snap ring pliers. Retain snap rings (Item 116) and washers (Item 117). Figure
41.
Catalytic Converter
The catalytic converter, a VOC type catalyst, is located behind the inside cook cavity wall and is responsible for cleaning the recirculating airflow. The catalyst functions by substantially lowering the combustion temperature of grease entrained in the air path to approximately the same temperature
4. Locate and remove the microwave shield
(Item 119) by removing the four (4) #8 x 1/2” sheet metal screws (Item 120).
NOTE
: Some models do not contain item 119.
5. Squeeze the IR element together inside the cook cavity and pull the IR element from the oven .
52 I R E L E M E N T A N D C A T A L Y T I C C O N V E R T E R
Removing and Installing the Catalytic Converter
1. Unplug the oven.
2. Remove the IR element. (See above procedure.)
3. Once the IR element has been removed, remove the catalytic converter clip (Item 121) to access the catalytic converter. Figure 39.
N O T E
: It may be necessary to remove the blower motor assembly (see page 48) to get access to the top of the catalytic converter.
This will allow the catalytic converter to be pushed down out of the housing. Figure 39.
4. Remove the catalytic converter (Item 122).
5. Inspect the condition of the catalytic converter and either clean it or install a new one.
C A U T I O N
: Clean catalytic converter using only TurboChef cleaner (P/N 103180 USA,
103380 Intl). Use of other chemicals will irreparably damage catalyst.
Installing a New IR Element
1. Unplug the oven.
2. Gently squeeze the new IR element together in order to get the terminals and lead wires into the cavity and through the mounting holes.
118
119
122
C A U T I O N
: Do not allow the thermocouple lead wires to kink. They are solid wire and will break.
3. Once the IR element is installed, expand the IR element in order to reinstall the shim washers
(Item 117) and snap rings (Item 116). Figure 39.
N O T E
: Be sure that the snap rings sit in the grooves on IR element.
4. Reconnect the IR element lead wires to the EMI filter and the high-limit thermostat.
5. Reconnect the IR thermocouple lead wires to the thermocouple extension wires – Yellow to
Yellow and Red to Red.
I R E L E M E N T A N D C A T A L Y T I C C O N V E R T E R P A R T S
Figure 39
116. 101312
117. 102449
Snap Ring
Washer, Shim
118. NGC-3003 IR Element
119. NGC-1116 Shield, Microwave
120. 101688 Screw, #8 x 1/2” Sht Metal PTH
121. NGC-1030 Clip, Catalytic Converter
(Non-SBK)
NGC-1233 Clip, Catalytic Converter (SBK)
122. NGC-1012 Catalytic Converter x4
120
119
121
122
117
116
F I G U R E
39: IR Element and Catalytic Converter Assembly
118
Schematics and Schematic
Components
S C H E M A T I C C O M P O N E N T S 53
F I G U R E S 4 0 T H R U 4 5 : N G C O V E N S C H E M A T I C S
Figure 40
Figure 41
Figure 42
Figure 43
Figure 44
Figure 45
I/O Board Schematic
NGC US Schematic
NGC UK Schematic
NGC EW Schematic
NGC ED Schematic
NGC Brazil Schematic
S C H E M A T I C P A R T S
Line Voltage Components
Capacitor, High Voltage (C1)
Capacitor, High Voltage (C2)
Controller, Motor
Diode, High Voltage (D1)
Diode, High Voltage (D2)
EMI Filter (P/N 100542 USA, UK, Ireland, Brazil,
Japan 1Ph)
EMI Filter (P/N 100545 Europe, Asia, Pacific,
Australia, Japan 3Ph)
Fan 1, Cooling
Fan, Magnetron (Fan 1)
Fuse Holders, F1, F2, and F3
Fuse, F1, 12 Amp
Fuse, F2, 12 Amp
Fuse, F3, 20 Amp
Heater, Convection
Heater, IR Element
Magnetron (M1)
Magnetron (M2)
Motor, Convection
Power Supply, +24VDC (PS)
Relay, K1, Filament
Relay, K2, Anode
Relay, K3, Monitor
Relay, K4/K5, Solid State, K4/K5, Heater/IR
Relay, K6, Voltage
Relay, K7, Magnetron Cooling Fan
Thermostat, OT2, Cooling Fan
Thermostat, OT1, Heater
Transformer, Filament (FT1)
Transformer, Filament (FT2)
Transformer, High Voltage (T1)
Transformer, High Voltage (T2)
Voltage Sensor Module (US ovens only)
Low Voltage Components
Display, VFD
I/O Control Board
Keypad, NGC Oven
Switch, Primary Interlock
Switch, Secondary Interlock
Switch, Monitor Safety
Thermocouple, CC
Thermocouple, EC
Thermostat, Magnetron
Wire Harness Replacement P/Ns
Low Voltage Harness
123. 100185 Old Switch Setup
NGC-1418 New Switch Setup
Line Voltage Harness
124. NGC-1150-1 North America
NGC-1150-2 UK, Ireland, Brazil
NGC-1150-3 Eu, Asia, Pacific, Au, Japan
Magnetron Wire
125. 100186 All NGC Ovens
Power Cord
126. 100187
100194
USA
NGC ED - Europe, Asia, Pacific
100195
103187
UK, Ireland, Brazil
NGC EW- Europe, Asia, Pacific
103195 Australia
NGC-1383 Japan 3Ph
NGC-1390 Japan 1Ph
I / O C O N T R O L B O A R D I T E M I D E N T I F I C A T I O N A N D
T E S T P O I N T L O C A T I O N S
Figure 40
C9 Capacitor
D6 Diode
J2 40 Pin Connector for LV Harness
J3 3 Pin Connector for VFD Display
J4 14 Pin Connector for Keypad
J5 26 Pin Connector for Display Data
J6 RS-232 Connector (Unused)
P1 Voltage Reference 0-5 VDC RJ11 Connector for Smart Card Cable
P3 Blower Controller Pin Configuration U15
EPROM Socket
R42 Voltage Reference Adjustment (not available on some ovens)
R51 Beeper Volume Adjustment
SKP1 Beeper
U19 Erasable EPROM Socket
T1 Magnetron Current Transformer
54 I / O B O A R D S C H E M A T I C
F I G U R E
40: I/O Control Board and Test Point Locations
N G C ( U S ) S C H E M A T I C
NOTES:
1. SCHEMATIC SHOWS OVEN WITH DOOR OPEN AND WITHOUT POWER APPLIED
DRAWING OF 40-PIN CONNECTOR
T2
BR
BL
OR
OR
BR
BL
T1
DRAWING OF HV TRANSFORMERS
EVENS ODDS
SAFETY INTERLOCKS
PRIMARY
INTERLOCK
NC
C
NO
MONITOR
SWITCH
C
NC
C
SECONDARY
INTERLOCK
NO
NC
NO
OR-6
RD-20
BK-16
+V
-V
24VDC
POWER
SUPPLY
L
N
G
SPLICE 1
MAG
CT
MAG
CT
MAG FAN RELAY
K2-B (MAG OUT)
1
3
5
BMSC SEL
MONITOR (NO) INTER IN
PRIMARY (NO) INTER IN
SECONDARY (NO) INTER IN
BMSC (9) (STATUS OK)
HX STATUS IN
MAG THERMO SW IN
ASPEN
VOLT MODUAL IN
P5
+24V PS IN
WH-1
WH-2
OR-7
OR-8
OR-9
OR-11
OR-13
OR-6
MAG THERMO
212°F
NO
C
212°F
NO
C
QC1 QC2
RD-16
OR-11
BK-23
RJ11
RJ11
J4
P4
P6
J6
-24V PS IN
-24V P INTER RTN
-24V S&M RTN
-24V MAG THEMO SW RTN
BMSC 0-10V OUT
BMSC COMM (2)
K1-B (MAG FIL OUT)
K5 (-B) BOTTOM IR OUT
K6-B (VOLTS MOD OUT)
K4 (B-) (CONV OUT)
BMSC (3) (ENABLE OUT)
-24V (VOLT MODULE RTN)
34 34
IR
THERMOCOUPLES EC
CC
C(+)
A(-)
C(+)
A(-)
C(+)
A(-)
WH-31
BK-32
BK-33
IR
EC
CC
GREEN
M3 WHITE
M2 RED
M1 BLACK
RD-19
BK-20
BK-21
BK-22
BK-23
RD-24
RD-25
WH-27
WH-28
4
3
2
1
WH-301
3 6
2
1
5
4
3
2
1
240 VAC
3 PHASE
OUT
BMSC
SPD CMD
200-240
VAC IN
0-10V
I/O COMMON
ENABLE
I/O COM
STATUS OK
I/O COMMON
1
2
3
4
5
6
DRAWING OF 6-PIN
CONNECTOR
RD-19
WH-27
OR-61
WH-29
WH-2
PIN1
QC3
PIN1
PIN2 PIN2
PIN3
PIN4
PIN3
PIN4
PIN5
PIN6
PIN5
PIN6
BL140
BR250
FAN1 (COOLING)
BR220 C
OT2
NO
120°F
VOLTAGE MODULE
BR000
BL000
BR210
BL110
2
F1 F2
2
1 1
F3
2
1
L
INPUT
FILTER
L2
G
L
L2
BL120
BR230
BR400
BR420
K6 VOLTS
7
1
4
8
2
5
9
3
6
A B
K3 MONITOR
7
1
4
9
3
6
BL355
A
B
K2 ANODE
7
1
4
9
3
6
A B
K1 FILAMENT
7
1
4
9
3
6
A
WH-28
WH-301
B
B
K5
- +
A
-
SSR
K4
B2
B1 A1
A2
BL500
RD-19
OR360
BL370
BL160
BR290
NOT
USED
M2HV
F
OR440
BR450
HV TRANSFORMERS
1-2 = 208VAC
1-3 = 240VAC
T2
0.91 uF
C2
M2CD
(-) D2 (+)
MAG 1
M2F
FA
24V +
WH-1
J
F
MAG 2
A
NO NC
B
C
MAG_FAN_RELAY
K7
T1
M1F
FA
OR540
BL510
32 31
22 21
12
11
MANUAL RESET
OT1
HT520
1
2
BL150
OR270
BR280
BL340
M1HV
M1CD
(+) D1 (-)
0.91 uF
C1
M2FC
M1FC
M2FA
M1FA
MAG
FAN
HX ELEMENT
13.1 OHMS
14.4 OHMS
4
5
FT 2 1
BL150
2
BR280
3
OR270
FT 1 1
BL155
4
5
2
BR285
3
OR275
TAPS
1-2 = 208VAC
1-3 = 240VAC
SMART CARD CONNECTOR
ALL OTHER WIRES
LINE-OUT VIEW
ALL BLUE WIRES
F3: 20 AMPS CLASS CC
F2: 12 AMPS CLASS CC
F1: 12 AMPS CLASS CC
F I G U R E
4 0 : NGC (Tornado
®
) Schematic
K6
K3
K2
K1
55
N G C ( U K ) S C H E M A T I C 57
NOTES:
1. SCHEMATIC SHOWS OVEN WITH DOOR OPEN AND WITHOUT POWER APPLIED
DRAWING OF 40-PIN CONNECTOR
EVENS ODDS
BLWR
MTR
GREEN
M3 WHITE
M2 RED
M1 BLK
3
2
1
4
3
2
1
240 VAC
3 PHASE
OUT
BMSC
SPD CMD
200-240
VAC IN
0-10V
I/O COMMON
ENABLE
I/O COM
STATUS OK
I/O COMMON
RED 1
BL 8
1
2
3
4
5
6
BK-20
RD-16
-V
+V
24VDC
POWER
L
N
G
MAG
CT
K2-B (MAG OUT) WH-2
BMSC SEL
MONITOR (NO) INTER IN
PRIMARY (NO) INTER IN
SECONDARY (NO) INTER IN
BMSC (9) (STATUS OK)
HX STATUS IN
MAG THERMO SW IN
ASPEN
VOLT MODUAL IN
P5
+24V PS IN
OR-6
11 11
OR-10
OR-7
OR-8
OR-9
OR-11
RD-16
OR-6
DRAWING OF 6-PIN
CONNECTOR
3 6
2
1
5
4
OR-11
BK-23
QC1
RJ11
RJ11
-24V PS IN
-24V P INTER RTN
-24V S&M RTN
-24V MAG THEMO SW RTN
BMSC 0-10V OUT
BMSC COMM (2)
22
K1-B (MAG FIL OUT)
K5 (-B) BOTTOM IR OUT
K7 MAG FAN RELAY
K4 (B-) (CONV OUT)
BMSC (3) (ENABLE OUT)
BMSC (4) (COM RTN)
-24V (VOLT MODULE RTN)
34 34
IR
THERMOCOUPLES EC
CC
RD-19
BK-20
BK-21
BK-22
BK-23
RD-24
RD-25
WH-27
WH-28
WH-29
WH-31
BK-32
A(-)
C(+)
A(-)
C(+)
A(-)
C(+)
IR
EC
CC
WH-301
RD-19
WH-27
OR-61
WH-2
NC
NO
C
PRIMARY
INTERLOCK
OR-6
SECONDARY
INTERLOCK NO
C
NC
NO
C
MONITOR
SWITCH
NC
SAFETY INTERLOCKS - NEW SETUP
NO
NC
MAG THERMO
212°F
C
212°F
NO
NC
C
P IN1
QC3
P IN1
P IN2
P IN3
P IN4
P IN5
P IN6
P IN2
P IN3
P IN4
P IN5
P IN6
QC2
C
OT2
NO
120°F
EC FAN
SMART CARD CONNECTOR
SPLICE 1
MAG
CT
F1
1
2
F2
1
2
F3
2
1
BLK 25
L1 N
EMI
FILTER 1-PHASE
40VSK6
L1 N
BROWN
BLUE
GRN/YEL
BL 33 BL 34 BLK 19
BLK 40
K3 MONITOR
5
1
3
6
2
4
A
B
M2HV
HV TRANSFORMERS
1-2 = 230VAC
T2
T1
M1HV
K2 ANODE
5
1
3
6
2
4
A B
K1 FILAMENT
5
1
3
6
2
4
A
B
RED 5
BL 14
RED 6
BL 15
DO NOT USE
1.13 uF
1.15 uF
C2
D2
M2CD
(-) (+)
M2F
F
FA
F
M2FC
M1FC
C1
1.13 uF
1.15 uF
(+) (-)
M1F
M1CD
D1
M2FA
M1FA
FA
MAG
FAN
MAG 1 MAG 2
24V +
WH-29
A
C NO
NC
B
M AG_F AN_RELAY
K7
WH-28
WH-301
B
K5
-
SSR
A
K4
B2
B1 A1
A2
RD-19
RED 29
BR 30
OT1
MANUAL RESET
12
22
32
11
21
31
HT 38
1
2
HX ELEMENT
3300 WATTS
14.4 OHMS
3
4
FT2
1
2
3
FT1
1
4
2
TAPS
1-2 = 230VAC
K3
K2
K1
L1
LOAD DIAGRAM
MAG CT
HX CT
IR ELE
AUX CT
N
HT 43
N L1
230VAC, 1Ø
3 WIRE INPUT
F3: 20 AMPS CLASS CC
F2: 12 AMPS CLASS CC
F1: 12 AMPS CLASS CC
NC C
NO
PRIMARY
NC
C
NO
NC C
BK-21
NO
SECONDARY
SAFETY INTERLOCKS - OLD SETUP
F I G U R E
4 1 : NGCUK (Tornado) Schematic
N G C ( E W ) S C H E M A T I C 59
NOTES:
1. SCHEMATIC SHOWS OVEN WITH DOOR OPEN AND WITHOUT POWER APPLIED
DRAWING OF 40-PIN CONNECTOR
EVENS ODDS
BLWR
MTR
GREEN
M3 WHITE
M2 RED
M1 BLK
4
3
2
1
3
2
1
240 VAC
3 PHASE
OUT
BMSC
S PD CMD
200-240
VAC IN
0-10V
I/O COMMON
ENABLE
I/O COM
S TA TUS OK
I/O COMMON
RED 1
BL 8
1
2
3
4
5
6
BK-20
RD-16
-V
+V
24VDC
L
POWER
SUPPLY
N
G
SPLICE 1
MAG
CT
MAG
CT
K2-B (MAG OUT)
WH-2
BMSC SEL
ASPEN
MONITOR (NO) INTER IN
PRIMARY (NO) INTER IN
SECONDARY (NO) INTER IN
BMSC (9) (STATUS OK)
HX STATUS IN
MAG THERMO SW IN
VOLT MODUAL IN
P5
+24V PS IN
13
14
13
14
OR-6
OR-10
OR-7
OR-8
OR-9
OR-11
RD-16
OR-6
DRAWING OF 6-PIN
CONNECTOR
3 6
2 5
1 4
OR-11
BK-23
QC1
RJ11
RJ11
-24V PS IN
-24V P INTER RTN
-24V S&M RTN
-24V MAG THEMO SW RTN
BMSC 0-10V OUT
BMSC COMM (2)
K1-B (MAG FIL OUT)
K5 (-B) BOTTOM IR OUT
K7 MAG FAN RELAY
K4 (B-) (CONV OUT)
BMSC (3) (ENABLE OUT)
BMSC (4) (COM RTN)
-24V (VOLT MODULE RTN)
34 34
THERMOCOUPLES
IR
EC
CC
RD-19
BK-20
BK-21
BK-22
BK-23
RD-24
RD-25
WH-27
WH-28
WH-29
WH-31
BK-32
A(-)
C(+)
A(-)
C(+)
A(-)
C(+)
IR
EC
CC
WH-301
RD-19
WH-27
OR-61
WH-2
NO
NC C
PRIMARY
INTERLOCK
OR-6
SECONDARY
INTERLOCK
C
NO
NC
NO
C
MONITOR
SWITCH
NC
SAFETY INTERLOCKS - NEW SETUP
212°F
NO
NC
C
212°F
NO
NC
C
QC2
P IN1
QC3
P IN1
P IN2
P IN3
P IN4
P IN5
P IN6
P IN2
P IN3
P IN4
P IN5
P IN6
C
OT2
NO
120°F
EC FAN
F1
1
2
F2
1
2
F3
2
1
SMART CARD CONNECTOR
L1
L1
L2 L3
EMI FILTER
3-PHASE 5 WIRE WYE
L2 L3
N
N
NC C
NO
PRIMARY
NC
C
NO
NC C
BK-21
NO
SECONDARY
SAFETY INTERLOCKS - OLD SETUP
BL 33 BL 34
BLK 19
BLK 40
K3 MONITOR
7
1
4
9
3
6
A
B
M2HV
HV TRANSFORMERS
1-2 = 230VAC
T2 T1
M1HV
K2 ANODE
7
1
4
9
3
6
A B
1.13 uF
1.15 uF
F
C2
D2
M2CD
(-) (+)
M2F
FA F
K1 FILAMENT
9
7
1
4
3
6
A B
RED 5
BL 14
RED 6
BL 15
DO NOT USE
MAG 1 MAG 2
24V +
WH-29
A
B
K7
WH-28
WH-301
B
K5
-
SSR
A
K4
B2
B1 A1
A2
RD-19
RED 29
BR 30
OT1
MANUAL RESET
12
22
32
11
21
31
HT 38
BOTTOM IR
1
2
M2FC
M1FC
C1
1.13 uF
1.15 uF
(+) (-)
M1CD
D1
M1F
M2FA
M1FA
FA MAG
FAN
3
4
FT 2
1
2
HX ELEMENT
3
4
FT 1
1
2
TAPS
1-2 = 230VAC
IR E
LE
AU
X C
T
L1
HT 43
N
K3
K2
K1
L2
MA
G CT
L3
BLK
BLK
BRN
BLU
GRN
N
L3
L2
L1
380-415, 3Ø
5 WIRE INPUT
F3: 20 AMPS CLASS CC
F2: 12 AMPS CLASS CC
F1: 12 AMPS CLASS CC
F I G U R E
4 2 : NGCEW (Tornado) Schematic
N G C ( E D ) S C H E M A T I C 61
NOTES:
1. SCHEMATIC SHOWS OVEN WITH DOOR OPEN AND WITHOUT POWER APPLIED
DRAWING OF 40-PIN CONNECTOR
EVENS
ODDS
BLWR
MTR
GREEN
M3 WHITE
M2 RED
M1 BLK
3
2
1
4
3
2
1
240 VAC
BMSC
S PD CMD
200-240
VAC IN
0-10V
I/O COMMON
ENABLE
I/O COM
S TA TUS OK
I/O COMMON
RED 1
BL 8
1
2
3
4
5
6
BK-20
RD-16
-V
+V
24VDC
POWER
L
N
G
MAG
CT
K2-B (MAG OUT)
BMSC SEL
MONITOR (NO) INTER IN
PRIMARY (NO) INTER IN
SECONDARY (NO) INTER IN
BMSC (9) (STATUS OK)
HX STATUS IN
MAG THERMO SW IN
ASPEN
VOLT MODUAL IN
P5
RJ11
+24V PS IN
-24V PS IN
-24V P INTER RTN
-24V S&M RTN
-24V MAG THEMO SW RTN
BMSC 0-10V OUT
BMSC COMM (2)
K1-B (MAG FIL OUT)
K5 (-B) BOTTOM IR OUT
K7 MAG FAN RELAY
K4 (B-) (CONV OUT)
BMSC (3) (ENABLE OUT)
BMSC (4) (COM RTN)
-24V (VOLT MODULE RTN)
THERMOCOUPLES
IR
EC
CC
13
14
13
14
16
19
16
19
1
3
5
WH-2
OR-6
OR-10
OR-7
OR-8
OR-9
OR-11
RD-16
RD-19
BK-20
BK-21
BK-22
BK-23
RD-24
RD-25
26
27
28
31
26
28
WH-27
WH-28
WH-29
WH-31
BK-32
34 34
A(-)
C(+)
A(-)
C(+)
A(-)
C(+)
IR
EC
CC
RJ11
J4
P4
OR-6
DRAWING OF 6-PIN
CONNECTOR
3 6
2
1
5
4
WH-301
OR-11
BK-23
QC1
RD-19
WH-27
OR-61
WH-2
NC
NO
C
INTERLOCK
OR-6
SECONDARY
INTERLOCK NO
C
NC
NO
C
MONITOR
SWITCH
NC
SAFETY INTERLOCKS - NEW SETUP
NO
NC
MAG THERMO
212°F
C
212°F
NO
NC
C
P IN1
QC3
P IN1
P IN2
P IN3
P IN4
P IN5
P IN6
P IN2
P IN3
P IN4
P IN5
P IN6
QC2
C
OT2
NO
120°F
EC FAN
SMART CARD CONNECTOR
SPLICE 1
MAG
CT
F1
1
2
F2
1
2
F3
2
1
L1 L2
L3
EMI
FILTER 3-PHASE 5 WIRE WYE
N
L1 L2 L3 N
BL 33 BL 34
BLK 19
BLK 40
K3 MONITOR
7
1
4
9
3
6
A B
M2HV
HV TRANSFORMERS
1-2 = 230VAC
T2
T1
M1HV
K2 ANODE
7
1
4
9
3
6
A
B
1.13 uF
1.15 uF
C2
D2
M2CD
(-) (+)
M2F
M2FC
M1FC
C1
1.13 uF
1.15 uF
(+) (-)
M1CD
D1
M1F
M2FA
M1FA
F FA F FA
MAG
FAN
K1 FILAMENT
7
1
4
9
3
6
A B
RED 5
BL 14
RED 6
BL 15
DO NOT USE
MAG 1 MAG 2
24V +
WH-29
A
B
K7
WH-28
WH-301
B
K5
-
SSR
A
K4
B2
B1 A1
A2
RD-19
RED 29
BR 30
OT1
MANUAL RESET
12
22
32
11
21
31
HT 38
BOTTOM IR
14.4 OHMS
1
2
HX ELEMENT
3300 WATTS
3
4
FT2
1
2
3
4
FT1
1
2
TAPS
1-2 = 230VAC
L1
IR
E
LE
AU
X C
T
K3
K2
K1
L2
MW CT
RELAY ASSY
PINOUT
LOAD
DIAGRAM
HX
C
T
L3
HT 43
BLK
BLK
BRN
GRN
L1
L2
L3
230VAC, 3Ø
4 WIRE INPUT
F3: 20 AMPS CLASS CC
F2: 12 AMPS CLASS CC
F1: 12 AMPS CLASS CC
NC C
NO
PRIMARY
NC
C
NO
NC C
BK-21
NO
SECONDARY
SAFETY INTERLOCKS - OLD SETUP
F I G U R E
4 3 : NGCED (Tornado) Schematic
N G C ( B R A Z I L ) S C H E M A T I C 63
F I G U R E
4 4 : NGC Brazil (Tornado) Schematic
Service Parts and
Illustrations
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 65
F I G U R E 7 : N G C ( T O R N A D O ) C O N T R O L S Y S T E M
Chapter 4: The Control System - Page 13
3
2
1
4
3
2
1
L
N
24VDC
POWER
SUPPLY
+V
-V
BMSC
FOR MORE DETAIL, SEE FIGURE 37
240 VAC
3 PHASE
OUT
SPD
CMD
200-240
VAC IN
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
GROUND
COMMON
1
2
3
4
5
6
VOLTAGE
SENSOR
IR THERMOCOUPLE
EC THERMOCOUPLE
CC THERMOCOUPLE
A (-)
C (+)
A (-)
C (+)
A (-)
C (+)
VOLTAGE INPUT
COMMON
K1
MECH
RELAY
+ 24 VDC -
K2
MECH
RELAY
+ 24 VDC -
+24VDC
+24VDC
K3
MECH
RELAY
+ 24 VDC -
I/O
CONTROL
BOARD
1
1 2
2
1
1 2
2
KEYPAD
14
14
14
14
K6
MECH
RELAY
(U.S. ONLY)
+ 24 VDC -
VFD
DISPLAY
K5
3(+) 4(-)
DUAL
SSR
+24VDC
MONITOR SWITCH
NC
C
NO
MONITOR
INTERLOCK
+24VDC
IR ELEMENT COMMAND
CONVECTION HEATER COMMAND
MAGNETRON COOLING FAN COMMAND
PRIMARY SWITCH
INTERLOCK
PRIMARY SWITCH
NC
C
NO
SECONDARY SWITCH
INTERLOCK
SECONDARY SWITCH
NC
C
NO
COMMON
K4
3(+) 4(-)
K7
RELAY
- 24 VDC +
+24VDC
66 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 1 7 : C O N T R O L S Y S T E M P A N E L E N C L O S U R E A N D P A R T S
Chapter 4: The Control System - Page 20
5
1
8
4
6
7
10
9
2
3
C O N T R O L S Y S T E M P A N E L P A R T S
Figure 17.
1. NGC-1040 Cover, Keypad/Display, Std
NGC-1209 Cover, Keypad/Display, SBK
2. 102960
3. 100508
Nut, 4-40, Stainless
Smart Card, Blank
(Varies)* Smart Card, Programmed*
4. NGC-3023 Display Svc Kit (includes
5. 101954
Items 5, 6, and 7)
Spacer, 1/2” Lg, Aluminum
6. 100193 3-Pin Power Cable
7. 100184 26-Pin Ribbon Cable
8. NGC-1110-1 Keypad, NGC, Standard
NGC-1110-2 Keypad, NGC, SWY
NGC-1110-3 Keypad, NGC, SBK
NGC-1110-4 Keypad, NGC, OUT
9. 100506
10. 100182
Smart Card Reader
Smart Card Reader Cable
* Contact TurboChef (800.90
TURBO or
+1 214.379.6000) for more info/part numbers.
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 67
F I G U R E 1 8 : M O N I T O R C I R C U I T - S H O W N I N F A I L S A F E S T A T E
Chapter 5: The Microwave System - Page 25
LINE VOLTAGE
(L1)
LINE VOLTAGE
(L2)
F3 FUSE
20 AMP
(BLOWN)
+24 VDC
+24 VDC
K2 HV
RELAY
7
9
1
4
3
6
A
B
T1
HV TRANSFORMER
1
3
K3 MONITOR
RELAY
7
9
1
4
3
6
A
B
CONTROL
2
HV TRANSFORMER
3
1
T2
2
MONITOR SWITCH
(OPEN)
CDM
NC
C
NO
CONTROL
CONTROL
PRIMARY AND SECONDARY
INTERLOCKS (CLOSED)
NC
C
CDS
NO
NC
CDP
C
NO
F I G U R E 2 0 : M I C R O W A V E S Y S T E M P A R T S
Chapter 5: The Microwave System - Page 27
11. NGC-3062-1 HV Transformer (2 per oven, 1 per kit)
USA, Latin America, Korea
NGC-3062-2 HV Transformer (2 per oven, 1 per kit)
Europe, Asia-Pacific
NGC-3062-3 HV Transformer (2 per oven, 1 per kit)
Japan
12. NGC-3020 High Voltage Capacitor (2 per oven,
1 per kit) - USA, Latin America, Korea
NGC-3020-2 High Voltage Capacitor (2 per oven,
100207
1 per kit) - Europe, Asia-Pacific,
Japan 50 Hz
High Voltage Capacitor (2 per oven,
1 per kit) - Japan 60 Hz
13. 100481 High Voltage Diode (x2)
14.
Mag Fan Relay, Generic
NGC-3030-1 North America
NGC-3030-4 Europe, Asia-Pacific MPh
NGC-3030-7 Europe Single Phase
NGC-3030-12 Brazil Single Phase
Mag Fan Relay, SWY
NGC-3030-2 North America
NGC-3030-6 Europe, Brazil Single Phase
NGC-3030-9 Europe, Asia-Pacific MPh
Mag Fan Relay, SBK
NGC-3030-3 North America
NGC-3030-13 Europe, Brazil Single Phase
NGC-3030-14 Indiana/North Carolina
NGC-3030-15 Europe, Asia-Pacific MPh
Mag Fan Relay, Additional*
15. NGC-3061-1 Filament Transformer (2 per oven, 1 per kit) - USA, S. Korea
NGC-3061-2 Filament Transformer (2 per oven, 1 per kit) - Europe, Asia-
Pacific, Latin America
NGC-3061-3 Filament Transformer (2 per oven, 1 per kit) - Japan
16. 100083 Mag Cooling Fan
17. 101273
18. 101273
19. 101273
20. 100599
21. NGC-3015
22. NGC-3017
23. NGC-3016
K3 Monitor Relay
K2 High Voltage Relay
K1 Filament Relay
F3 Fuse - 20 Amp
Magnetron (2 per oven, 1 per kit)
Wave Guide (Rear)
Wave Guide (Front)
* See Comprehensive Part List, page 79.
11
12
23 22
13
21 20
14
15
16
17
18
19
15
68 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 2 1 : M I C R O W A V E S Y S T E M P A R T S
Chapter 5: The Microwave System - Page 27
Microwave System Parts
24. 100186 Magnetron Wire
25. NGC-3015 Magnetron
26. 102070 Magnetron Thermostat
27. NGC-1163 Insulator, Adhesive
28. 100684 Screw #6 Sheet Metal
25
24
( O R G )
( B L K )
FA F
F I L A M E N T A N D H I G H
V O L T A G E T E R M I N A L S
26
27
28
C O O L I N G
F I N S
A N T E N N A
F I G U R E 2 2 : W A V E G U I D E C O V E R / W A V E G U I D E R E M O V A L A N D R E P L A C E M E N T
Chapter 5: The Microwave System - Page 29
31
32
33
34
36
30
29
37
Wave Guide/Wave Guide Cover Parts
29. NGC-3036
30. 101666
31. 101701
32. NGC-1047
Kit, Wave Guide Cover (Includes
Item 31 and sealant)
Screws, #8-32 x 1/2, Cap
Screws, #8, SST
Support, Frame
33. 102809 Screws, #8-32 x 3/8” CSK (100
º
)
34.
NGC-3017
35. NGC-3015
Assy, Wave Guide, Rear
Magnetron, Rear
36. NGC-3015
37. NGC-3016
Magnetron, Front
Assy, Wave Guide, Front
35
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 69
F I G U R E 2 4 & 2 5 : H I G H V O L T A G E D I O D E A N D M A G N E T R O N
Chapter 5: The Microwave System - Page 32
FA F
ANTENNA
FILAMENT AND
HIGH VOLTAGE
TERMINALS
F I G U R E 2 6 : O V E N D O O R R E M O V A L A N D P A R T S
Chapter 6: The Oven Door - Page 37
Cook Door Parts
38. 102809 #8-32 x 3/8” PFH CSK
39. NGC-3067 Assy, Oven Door
(Traditional)
NGC-3067-2 Assy, Oven Door
(SBK)
40. NGC-1061 Hinge Block
41. 102804
42. 102805
43. 101381
44. 102140
45. 102350
46. 101191
Right Hinge
Left Hinge
#10-32 x 1/2” Hex SS
#10 Flat
#10 Split Lock
Cap, Hole
42
41
40
39
38
43 44
45 46
70 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 2 9 : P R I M A R Y A N D S E C O N D A R Y I N T E R L O C K S A D J U S T M E N T A N D P A R T S - O L D S W I T C H S E T U P
Chapter 6: The Oven Door - Page 40
50 49
APPLY HI
-
TEMP
GREASE TO AREA
48
47
Primary and Secondary Interlock Switch Parts
47. NGC-1076-2 Actuator, Door
48. 102809
49. 102921
50. 101557
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 1 1/4”
51. 102012 Interlock Switches
52. NGC-3033 Assy, Door Switch*
51
*See Figure 32 for Assy Detail.
52
TOGGLE TO BE LEVEL
OR NEARLY LEVEL
SWITCH GAP
=
0.020”
F I G U R E 3 0 : D O O R S W I T C H A S S E M B L Y A N D P A R T S
Chapter 6: The Oven Door - Page 41
Door Switch Parts
53. NGC-1072 Bracket Latch
54. 102012 Switch, Micro, 0.1A/125VAC
55. NGC-1087 Spring Door Latch
56. NGC-1073 Toggle, Latch
57. 101119 Pin, Clevis, ø3/16 x 1” Lg
58. 100059 Bearings, Bronze,
3/16ID x 5/16OD x 1/4” Lg
59. 101557 Screw, #4-40 x 1.25” Lg,
PPHD, CRES
Screw, #8-32 x 3/8”, Internal 60. 102921
Tooth Sems, PPHD, SS
61. NGC-1126 Plate, Door Switch
62. NGC-3006 Grease, USDA H-1, Food Grade
63. 101296 Ring, E-clip
62
60
55
56
58 x2
61
57
59
63
54
53
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 71
F I G U R E 3 1 : M O N I T O R S W I T C H A D J U S T M E N T A N D A S S E M B L Y - O L D S W I T C H S E T U P
Chapter 6: The Oven Door - Page 41
68
65 x2
69
64
66
68
67
67
68
REF
Monitor Safety Switch Parts
64. 102804
65. 102012
Hinge, Right
Switch, Limit, Micro
66. NGC-1126 Plate, Door Switch
67. 101912
68. 102921
69. 102902
Standoff, #8-32F/Fx1 in S
Screw, #8-32 x 3/8”
Screw, 4-40 x 5/8”
F I G U R E 3 2 : P R I M A R Y I N T E R L O C K A D J U S T M E N T A N D P A R T S - N E W S W I T C H S E T U P
Chapter 6: The Oven Door - Page 42
72 71
APPLY HI
-
TEMP
GREASE TO AREA
70
73
74
75
Primary Safety Switch Parts
70. 102809
71. 102921
72. 101555
73. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 3/4”
Interlock Switch
74. NGC-3033 Assy, Door Switch*
76
75. Adjustment Tools (included with Item 74)
NGC-1215 Door Switch Gauge
NGC-1340 Shim Tool, 0.060”
NGC-1344 Shim Tool, 0.030”
76. NGC-1169-1 Shim, 0.030”
NGC-1169-2 Shim, 0.045”
72 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E S 3 3 A N D 3 4 : S E C O N D A R Y A N D M O N I T O R S W I T C H A D J U S T M E N T A N D A S S E M B L Y - N E W S W I T C H S E T U P
Chapter 6: The Oven Door - Page 43
82
77
79
83 x2
78 x2
81 80
82
80 81 82
Secondary and Monitor Safety Switch Parts
77. 102804
78. 102012
Hinge, Right
Switch, Limit, Micro (x2)
79. NGC-1126 Plate, Door Switch
80. 101914
81. 101915
82. 102921
83. 101558
Standoff, #8-32 F/F x 1”, 5/16” DIA
Standoff, #8-32 M/F x 5/16”, 1/4” DIA
(attached to outside of Item 80.)
Screw, #8-32 x 3/8”
Screw, 4-40 x 1.125”
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 73
F I G U R E 3 5 : O V E N D O O R A S S E M B L Y
Chapter 6: The Oven Door - Page 44
84
85
93
R SAFE USE TO AVOID POSSIBLE
E ENERGY
DO NOT attempt to operate this oven with:
SIVE MICROWAV
UNE EXPOSITION
or Sealing Surface.
2. Door that does not close properly.
EXPOSURE TO EXCES
PRECAUTIONS FO
1. Object caught in Door.
3. Damaged Door, Hinge, Latch,
FIN D'EVITER s correctement.
che ou la surface r cet four: brises.
le gond, la clen
1. S'il y a un
3. Si la porte, d'etancheite sont
2. Si la porte ne se ferme pa
Ne tentez pas de fair fonctionne objet qui obstrue la porte.
PRECAUTIONS A A
DANGEREUSE AUX MICRO-ONDES.
101
94
98 AR
EE NUMBER
6
800-908-872
CUSTOMER SERVICE TOLL FR
ENERGY IBLE
PRECAUTIONS FOR SAFE USE TO AVOID POSS
EXCESSIVE MICROWAVE ling Surface.
properly.
oor.
not close
Hinge, Latch, or Sea t four: ment.
e la porte.
UX MICRO-ONDES.
air fonctionner ce
1. Object caught in D nd, la clenche ou la surfac
3. Damaged Door,
2. Door that does ferme pas correcte un objet qui obstru brises.
ite sont
2. Si la porte ne se
1. S'il y a d'etanche
3. Si la porte, le go
Ne tentez pas de f
DANGEREUSE A
EXPOSURE TO
DO NOT attempt to operate this oven with:
PRECAUTIONS A AFIN D'EVITER UNE EXPOSITION
99
100 x2
87
90 x2
95
91
92 x6
97 x17
86 x2
88 89 96 x2
Oven Door Parts
84. NGC-3067* Door, NGC, Generic*
NGC-3067-2* Door, NGC, SBK*
85. NGC-3021 Kit, Shunt Plate
86. NGC-1061
87. 102750
NGC-1216
88. NGC-1076-2
89. NGC-1132
Hinge Block
Handle, Door, Generic
Handle, Door, SBK
Actuator, Door
Shim, Door Latch
90. 102945
91. NGC-1138
92. 102809
93. NGC-1165
94. NGC-1125-1
NGC-1125-2
Bolt, 1/4”-20 x 1.00
Label, Precaution
#8-32 x 3/8” CSK 100°
Label, Caution Empty
Door Insulation 1
Door Insulation 2
95. NGC-1127
96. 102748
Channel, Door Handle
Screw, #8-32 x 3/8”, Torx
Security
97. 101688
98. 102698
99. NGC-1155
100. 101293
Screw, #8 x 1/2” PTH
Tape, Aluminum
Name Plate, TurboChef
Nut, Push, 1/8”
101. NGC-1170 Label, Service
* Includes items 85 - 101.
74 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 3 7 : C O N V E C T I O N C I R C U I T B L O C K D I A G R A M
Chapter 7: Convection Circuit - Page 47
BOTTOM IR CONTROL
MAIN HX CONTROL
WH-28
WH-30
+24
RD-19
SSR
B2
K5 K4
A2
B1 A1
OR540
BL510
OT1 - HI-LIMIT
MANUAL RESET
32
C
22
12
C
C
NC
31
NC
21
NC
11
HT520
1
2
HX ELEMENT
3300 WATTS
13.1 OHMS
BOTTOM IR
3000 WATTS
14.4 OHMS
L1
MOTOR SPINS
COUNTER-CLOCKWISE
FROM BACK
BLWR
MTR
M4 GREEN
M3 WHITE
M2 RED
M1 BLACK
2
1
4
3
240 VAC
3 PHASE
OUT
BMSC
3
2
1
SPD CMD
200-240
VAC IN
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
I/O COM
3
4
5
6
1
2
GROUND (GREEN)
L2
L1
RD-24
BK-25
WH-31
BK-32
OR-9
L2
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 75
F I G U R E 3 8 : C O N V E C T I O N C I R C U I T A S S E M B L Y A N D P A R T S
Chapter 7: Convection Circuit - Page 48
109 x10
110
105
114
104 x6
103
102 x8
This de erat vice c
1. Th
2. Th is de is de elec corre vice ma vice must acc undesir ven c
To pr ovide c sho ck, c onnec ncluding in ed op eder al P ontinued pr
Pour assur trique br ctem eration.
erformanc oper
AV otec anche
NO ollo
TICE: wing c ept an terfe otec y in omplies with applic ly gr mful in terfe renc e tha able sec
WA ules renc e.
t ma y cause ounded outlets only
ERT tion c erre.
RNING: trical
10.
ontinue c t a un e pr ise c
107
113
111
112
Convection Circuit Parts
*
*
*
102. 101688 Screw, #8 x 1/2” PTH
103. NGC-1081 Cover, Motor
104. 100906 Nut, 1/4”-20, Flange
105. NGC-1025 Assy, Blower Motor
106. NGC-3007 Kit, Fan Blade
107. NGC-1024 Sealing Block, Blower
108. NGC-1023 Clamp, Blower Seal
109. 101688 Screw, #8 x 1/2” PTH
110. NGC-3011 Heater, Convection
111. 100443 Controller, Motor
106
**
112. NGC-3005 Relay, K4/K5 SSR
113. 100592
114. 102075
Fuses, F1 and F2 (12 Amp)
High-Limit Thermostat
115. NGC-1043 Gasket, Convection Heater
* If entire motor is needed, order NGC-1025.
If only hardware (screws, nuts) or seal is needed, contact 800.90
TURBO or +1 214-379-6000.
** Not shown for clarity.
108
76 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 3 9 : I R E L E M E N T A N D C A T A L Y T I C C O N V E R T E R P A R T S A N D A S S E M B L Y
Chapter 8: IR Element and Catalytic Converter - Page 52
122
118
119 x4
120
119
121
122
117
116
118
IR Element and Catalytic Converter Parts
116. 101312 Snap Ring
117. 102449 Washer, Shim
118. NGC-3003 IR Element
119. NGC-1116 Shield, Microwave
120. 101688 Screw, #8 x 1/2” Sht Metal PTH
121. NGC-1030 Clip, Catalytic Converter
(Non-SBK)
NGC-1233 Clip, Catalytic Converter
(SBK)
122. NGC-1012 Catalytic Converter
Wire Harness Replacement P/N
Low Voltage Harness
123. 100185 Old Switch Setup
NGC-1418 New Switch Setup
Line Voltage Harness
124. NGC-1150-1 North America
NGC-1150-2 UK, Ireland, Brazil
NGC-1150-3 Eu, Asia, Pacific, Au, Japan
Magnetron Wire
125. 100186 All NGC Ovens
Power Cord
126. 100187
100194
100195
USA
NGC ED - Europe, Asia, Pacific
UK, Ireland, Brazil
103187
103195
NGC EW- Europe, Asia, Pacific
Australia
NGC-1383 Japan 3Ph
NGC-1390 Japan 1Ph
S E R V I C E P A R T S A N D I L L U S T R A T I O N S 77
F I G U R E 4 6 : C O V E R S A N D M I S C E L L A N E O U S P A R T S - N O N - S B K O V E N S
129
132 x2
144
130 x2
140
128
139
C Rules onditions:
TICE: tions of able sec d 21 CFR 1030.1
ause har tion against elec ounded outlets o z seulemen omplies with applic omplies with P undesir
DHHS F
CA
UTION
-HO
T-
135 x4
136
142 x2
131 x3 per panel
137
138
141
127
143 x4
133
134 x4
Covers and Miscellaneous Parts - Non-SBK
127. NGC-1069-1 Cover, Left Side
128. NGC-1069-2 Cover, Right Side
129. NGC-1068 Cover, Top
130. 102752 Screw, #8-16 TORX HD
Security
131. 101688 Screw, #8 Serrated Phillips
TRHD, CRES
Screw, #8-32 x 3/8”, PPHD, 132. 102921
SEM, Int Tooth, SS
133. NGC-1071-2 Cover, Bottom Front
134. 100785
100781
Leg, NGC, Black Plastic
Leg, NGC, Stainless Steel
135. 101191 Hole Plug, 1/2” Dia, Black
136. NGC-1054-1 Assy, Keypad/Display, Cover,
Standard
NGC-1054-2 Assy, Keypad/Display, Cover,
Subway
137. NGC-1064-1 Rack, Standard (USA)
NGC-1274 Rack, Recessed (International)
NGC-3064 Rack, Raised
138. NGC-3037 Stone, Unglazed
NGC-3038 Stone, Clear Glazed
NGC-3063 Stone, Fiber-Reinforced
139. NGC-1176-1 Label, Schematic (N. America)
NGC-1176-2 Label, Schematic (UK/Ireland)
NGC-1176-3 Label, Schematic (Eu/Asia/Pac
400VAC)
NGC-1176-4 Label, Schematic (Eu/Asia/Pac
230 VAC)
NGC-2020 Label, Schematic (Gen. Brazil)
140. NGC-1177 Label, Service Assistance
141. NGC-1148 Label, Caution Hot
142. 102962 Nut, KEPS HEX, #8-32, Ext
Tooth, CRES
143. NGC-1187 Pad, Abrasive Non-slip
144. NGC-1082 Cover, Cooling Fan
78 S E R V I C E P A R T S A N D I L L U S T R A T I O N S
F I G U R E 4 7 : C O V E R S A N D M I S C E L L A N E O U S P A R T S - S B K O V E N S
147
150 x2
162
148 x2
158
146
157 omplies with P tions of d 21 CFR 1030.1
able sec tion against elec ounded outlets o
C Rules onditions:
TICE: ause har z seulemen omplies with applic undesir
DHHS F
CA
-HO
153 x4
154
160 x2
149 x3 per panel
155
156
159
145
161 x4
152 x4
151
Covers and Miscellaneous Parts - SBK
145. NGC-1213-1 Cover, Left Side
146. NGC-1213-2 Cover, Right Side
147. NGC-1211 Cover, Top
148. 102756 Screw, #8 x 1/2 Lg
TORX HD Security
149. 101691 Screw, #8 Serrated Phillips
TRHD, CRES
Screw, #8-32 x 3/8”, PPHD, 150. 102922
SEM, Int Tooth, SS
151. NGC-1212 Cover, Bottom Front
152. 100784
153. 101191
Leg, NGC, SBK, 4” (qty 1)
Hole Plug, 1/2” Dia, Black
154. NGC-1054-3 Assy, Keypad/Display, Cover
155. NGC-3064 Rack, Raised
156. NGC-3038 Stone, Clear Glazed
157. NGC-1176-1 Label, Schematic (USA)
NGC-1176-2 Label, Schematic (UK/Ireland)
NGC-1176-3 Label, Schematic (Eu/Asia/Pac
400VAC)
NGC-1176-4 Label, Schematic (Eu/Asia/Pac
230 VAC)
NGC-2011-8 Label, Schematic (Latin America)
158. NGC-1177 Label, Service Assistance
159. NGC-1148 Label, Caution Hot
160. 102962 Nut, KEPS HEX, #8-32, Ext
Tooth, CRES
161. NGC-1187 Pad, Abrasive Non-slip
162. NGC-1082 Cover, Cooling Fan
Comprehensive Part List
I T E M D E S C R I P T I O N
Actuator, Door
Assembly, Keypad/Housing, Cover, Standard
Assembly, Keypad/Housing, Cover, SWY
Assembly, Keypad/Housing, Cover, SBK
Bearings, Bronze, 3/16 ID x 5/16 OD x 1/4
Block, Hinge
Block, Sealing, Blower Motor
Blower Motor
Bolt, 1/4-20 x 1.00
Bracket, Stacking
Cable, Ribbon, 26-Pin
Cable, Smart Card Reader
Cable, VF Display, 3-Pin
Cap, Hole, Door
Capacitor, HV (Europe, Asia-Pacific)
Capacitor, HV (Japan)
Capacitor, HV (USA, Latin America, S. Korea)
Cart, TurboChef Oven, 18”
Cart, TurboChef Oven, 24”
Catalytic Converter
Channel, Door Handle
Clamp, Blower Seal
Cleaner, TurboChef Oven, Domestic
Cleaner, TurboChef Oven, International
Cleaner, Wave Guide Cover, Domestic
Cleaner, Wave Guide Cover, International
Clip, Catalytic Converter, Standard
Clip, Catalytic Converter, SBK
Cord, Power (Australia)
Cord, Power (Japan 1Ph)
Cord, Power (Japan 3Ph)
Cord, Power (NGC ED - Europe, Asia-Pacific)
Cord, Power (NGC EW - Europe, Asia-Pacific)
Cord, Power (UK, Ireland, Brazil)
Cord, Power (USA)
Cover, Bottom Front, Standard
Cover, Bottom Front, SBK
Cover, Cooling Fan
Cover, Keypad/Display, Standard
Cover, Keypad/Display, SBK
Cover, Left Side, Standard
Cover, Left Side, SBK
Cover, Motor
Cover, Right Side, Standard
Cover, Right Side, SBK
Cover, Top, Standard
Cover, Top, SBK
Cover, Wave Guide
Diode, HV
Display
Door, Standard
Door, SBK
C O M P R E H E N S I V E P A R T L I S T 79
NGC-1217-2
NGC-1217-1
NGC-1012
NGC-1127
NGC-1023
103180
103380
103183
103383
NGC-1030
NGC-1233
103195
NGC-1390
NGC-1383
100194
103187
100195
100187
NGC-1071-2
NGC-1212
NGC-1082
NGC-1040
NGC-1209
NGC-1069-1
NGC-1213-1
NGC-1081
NGC-1069-2
NGC-1213-2
NGC-1068
NGC-1211
NGC-3036
100481
NGC-3023
NGC-3067
NGC-3067-2
P A R T N U M B E R
NGC-1076-2
NGC-1054-1
NGC-1054-2
NGC-1054-3
100059
NGC-1061
NGC-1024
NGC-1025
102945
TC3-0323
100184
100182
100193
101191
NGC-3020-2
100207
F I G U R E N U M B E R ( P A G E S 6 5 - 7 8 )
47
22
20
17
38
46
47
46
26, 35
26, 35
17
17
46
47
None
46
47
46, 47
39
39
None
None
None
None
None
None
4 (Page 4)
39
35
38
None
None
None
None
35
None
17
17
17
26
20
20
29, 35
46
46
47
30
26, 35
38
38
20
Correct# 100232
4 (Page 4)
80 C O M P R E H E N S I V E P A R T L I S T
I T E M D E S C R I P T I O N
Fan Blade, Motor
Fan, Magnetron Cooling
Filter, EMI, 1Ph (USA, Europe, Latin America, Japan)
Filter, EMI, 3Ph (Europe, Asia-Pacific, Korea, Japan)
Fuse, F1, 12 Amp
Fuse, F2, 12 Amp
Fuse, F3, 20 Amp
Gasket, Convection Heater
Gauge, Door Switch (Adjustment Tool)
Grease, Food Grade, USDA H-1
Guard, TurboChef Oven, Domestic
Guard, TurboChef Oven, International
Handle, Door, Standard
Handle, Door, SBK
Harness, Line Voltage (Europe, Asia-Pacific, Japan)
Harness, Line Voltage (North America)
Harness, Line Voltage (UK, Ireland, Brazil)
Harness, Low Voltage, Old Switch Setup
Harness, Low Voltage, New Switch Setup
Heater Element, IR
Heater, Convection
Hinge, Left
Hinge, Right
Insulation, Door, 1
Insulation, Door, 2
Insulator, Adhesive
Keypad, OUT
Keypad, Standard
Keypad, SBK
Keypad, SWY
Label, Caution, Empty Cavity
Label, Caution, Hot
Label, Precaution for Safe Use
Label, Schematic (Europe, Asia-Pacific, 230 VAC)
Label, Schematic (Europe, Asia-Pacific, 400 VAC)
Label, Schematic (USA)
Label, Schematic (UK, Ireland)
Label, Schematic, Standard (Latin America)
Label, Schematic, SBK (Latin America)
Label, Service Assistance
Label, Service Number
Latch, Bracket
Latch, Spring Door
Leg, 4”, Black Plastic
Leg, 4”, Standard, Stainless Steel
Leg, 4”, SBK
Leg, 7”, SBK Kit (4 legs)
Magnetron
Motor Controller
Nameplate, TurboChef
Nut, Crescent, Keps, Hex, #8-32, External Tooth
P A R T N U M B E R
NGC-3007
100083
100543
100545
100592
100592
100599
NGC-1043
NGC-1215
NGC-3006
103181
103381
102750
NGC-1216
NGC-1150-3
NGC-1150-1
NGC-1150-2
100185
NGC-1418
NGC-3003
NGC-3011
102805
102804
NGC-1125-1
NGC-1125-2
NGC-1163
NGC-1110-4
NGC-1110-1
NGC-1110-3
NGC-1110-2
NGC-1165
NGC-1148
NGC-1138
NGC-1176-4
NGC-1176-3
NGC-1176-1
NGC-1176-2
NGC-2020
NGC-2011-8
NGC-1177
NGC-1170
NGC-1072
NGC-1087
100785
100781
100784
NGC-3068
NGC-3015
NGC-1155
102692
F I G U R E N U M B E R ( P A G E S 6 5 - 7 8 )
30
46
46
47
46, 47
46, 47
46, 47
46
47
46, 47
35
30
32
30
None
None
35
None
None
None
None
None
38
38
20
38
38
20
None
None
17
17
17
17
35
46, 47
35
46, 47
None
39
38
26
26, 31, 33, 34
35
35
21
47
20, 21
38
35
Correct# CON-3010
46, 47
C O M P R E H E N S I V E P A R T L I S T 81
I T E M D E S C R I P T I O N P A R T N U M B E R
Nut, Flange, 1/4-20
Nut, M5, Yellow Zinc (Magnetrons, Bottom Electrical Plate)
Nut, Push, 1/8
Nut, Stainless, #4-40
Pad, Abrasive, Non-Slip
Pin, Clevis, 3/16 Diameter x 1” Long
Plate, Door Switch
Plug, Hole, Black, 1/2” Diameter
Rack, Raised
Rack, Recessed
Rack, Standard
Reader, Smart Card
Relay, K1, Filament Transformers
Relay, K2, HV Transformers
Relay, K3, Monitor
Relay, K4/K5, Solid State, Convection Heater/IR Element
Relay, K6, 208/240 Transformer Taps (USA only)
Relay, K7, Magnetron Fan, DNK
100906
100101
101293
102960
NGC-1187
101119
NGC-1126
101191
NGC-3064
NGC-1274
NGC-1064-1
100506
101273
101273
101273
NGC-3005
101272
NGC-3030-11
Relay, K7, Magnetron Fan, OXXO
Relay, K7, Magnetron Fan, SBK (USA)
Relay, K7, Magnetron Fan, SBK (Europe, Asia-Pacific MPh)
Relay, K7, Magnetron Fan, SBK (Europe SPh)
NGC-3030-5
NGC-3030-3
NGC-3030-15
NGC-3030-13
Relay, K7, Magnetron Fan, SBK (Indiana/North Carolina)
Relay, K7, Magnetron Fan, Standard (USA)
NGC-3030-14
NGC-3030-1
Relay, K7, Magnetron Fan, Standard (Europe, Asia-Pacific MPh) NGC-3030-4
Relay, K7, Magnetron Fan, Standard (Europe SPh) NGC-3030-7
Relay, K7, Magnetron Fan, Standard (Latin America)
Relay, K7, Magnetron Fan, SWY (USA)
Relay, K7, Magnetron Fan, SWY (Europe, Asia-Pacific MPh)
Relay, K7, Magnetron Fan, SWY (Europe, Latin America SPh)
Relay, K7, Magnetron Fan, TESCO
Relay, K7, Magnetron Fan, WAWA
Ring, E-clip
Ring, Snap
NGC-3030-12
NGC-3030-2
NGC-3030-9
NGC-3030-6
NGC-3030-10
NGC-3030-8
101296
101312
Screw, #4-40 x 5/8
Screw, #4-40 x 3/4
Screw, #4-40 x 1 1/8
Screw, #4-40 x 1 1/4
Screw, #6, Sheet Metal
Screw, #8, Crescent, TRHD, Serrated Phillips
Screw, #8, Crescent, TRHD, Serrated Phillips, Black Oxide
Screw, #8-16, Torx Security
Screw, #8-16 x 1/2, Torx Security, Black Oxide
Screw, #8-18, SS
Screw, #8-32 x 3/8
Screw, #8-32 x 3/8, PFH, CSK
Screw, #8-32 x 3/8, PPHD, SEM, SS, Internal Tooth
Screw, #8-32 x 3/8, Torx Security
Screw, #8-32 x 1/2, Cap
Screw, #10-32 x 1/2, SS, Hex
Shield, Microwave
102902
101555
101558
101557
100684
101688
101691
102752
102756
101701
102921
102809
102922
102748
101666
101381
NGC-1116
F I G U R E N U M B E R ( P A G E S 6 5 - 7 8 )
20
20
20
20
None
None
30
39
20
20
20
20
None
20
20
20
46, 47
46
46
17
20
20
20
38
None
None
38
None
35
17
46, 47
30
30, 31, 33, 34
46, 47
31
32
33, 34
29, 30
21
35, 38, 39, 46
47
46
47
35
22
26
39
47
22
29, 30, 31, 32, 33, 34, 46
22, 26, 29, 32, 35
82 C O M P R E H E N S I V E P A R T L I S T
I T E M D E S C R I P T I O N P A R T N U M B E R
Shim, 0.030
Shim, 0.045
Shim, Door Latch
Shim Tool, 0.030
NGC-1169-1
NGC-1169-2
NGC-1132
NGC-1344
Shim Tool, 0.060
Shunt Plate, Door
NGC-1340
NGC-3021
Smart Card, Blank 100508
Smart Card, Programmed (call TurboChef for Part Numbers) Varied
Spacer, Aluminum, 1/2”
Standoff, #8-32 F/F x 1”
Standoff, #8-32, F/F x 1”, 5/16 Diameter
Standoff, #8-32, M/F x 5/16”, 1/4 Diameter
Stone, Baking, Fiber-Reinforced
Stone, Baking, Glazed, Clear
Stone, Baking, Unglazed
Support, Frame
Switch, Door, Assembly
Switch, Door (Component)
101954
101912
101914
101915
NGC-3063
NGC-3038
NGC-3037
NGC-1047
NGC-3033
102012
Tape, Aluminum
Thermocouple, Electrical Compartment (EC)
Thermocouple, Cook Cavity (CC)
Thermostat, High-Limit
102698
700-1199
NGC-1140
102075
Thermostat, Magnetron
Toggle, Latch
102070
NGC-1073
Transformer, Filament (USA, Korea) NGC-3061-1
Transformer, Filament (Europe, Asia-Pacific, Latin America) NGC-3061-2
Transformer, Filament (Japan)
Transformer, HV (USA, Latin America, Korea)
Transformer, HV (Europe, Asia-Pacific)
Transformer, HV (Japan)
Washer, Flat, #10
Washer, Shim
Washer, Split Lock, #10
Wave Guide, Front
Wave Guide, Rear
Wire, Magnetron
NGC-3061-3
NGC-3062-1
NGC-3062-2
NGC-3062-3
102140
102449
102350
NGC-3016
NGC-3017
100186
F I G U R E N U M B E R ( P A G E S 6 5 - 7 8 )
20
20
20
20
26
39
26
20, 22
20, 22
21
21
30
20
20
35
None
None
38
32
35
17
17
32
32
35
32
17
31
33, 34
33, 34
46
46, 47
46
22
29, 32
29, 30, 31, 32, 33, 34
For further information call:
8 0 0 . 9 0
T U R B O o r
+ 1 2 1 4 - 3 7 9 - 6 0 0 0
TM
Part Number: NGC-1007 / Revision G / August 2009
© 2009 TurboChef Technologies, Inc
.
Global Operations
4 2 4 0 In t e r n a t i o n a l Pa rk w a y
Suite 1 0 5
Carrollton, Texas 7 5 0 0 7
2 1 4 . 3 7 9 . 6 0 0 0
P H O N E
2 1 4 . 3 7 9 . 6 0 8 5
F A X t urbochef.com
advertisement
Related manuals
advertisement