NES/NEB Electric Cooktop Training Program

1
NES/NEB Electric Cooktop
Training Program
1st Edition/Revision 1 (8/18/2005)
2
NES/NEB Training Program
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Features and Benefits
Product Description
Warranty
Installation
Operation
Disassembly
Reassembly
Wiring Diagram
Service Tips
1st Edition/Revision 1 (08/18/2005)
3
Features and Benefits
• UltraSpeed™ heating elements
• Digital display with residual heat indicator for each
element
• Safety Auto-Lockout
• Can be installed over any Bosch oven
• Pot Sizing
• Beveled side edges (white/black versions)
• UL listed (U.S. & Canada)
1st Edition/Revision 1 (08/18/2005)
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Product Description
• UltraSpeed™ heating elements
heat up 65% faster
• Residual heat indicator for each
element in digital display
• Seamless easy to clean glass (no
holes for food to drip inside)
• Pot sizing for dual elements
• Electronic controls
• Digital displays
• UL listed (U.S. & Canada)
-- file # 212130
• Safety Auto-Lockout when
magnetic knob removed
• Removable magnetic knob for
easy cleaning & childproofing
• Beveled side edges allow pots to
be slid onto cooktop (white/black)
1st Edition/Revision 1 (08/18/2005)
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Warranty (1)
HIGHLIGHTS: Parts/labor (1) year from
installation + parts (1-5) years from
installation for elements, controls & glass.
Replacement parts same as cooktop.
Electric Cooktop Warranty
Statement Of Limited Warranty
The warranties provided by BSH Home Appliances ("Bosch") in this Statement of Limited Warranty apply only to
the Bosch Electric Cooktops ("Cook Top") sold to you, the first using purchaser, provided that the Cook Top was
purchased (1) for your use and not for resale and (2) in the United States or Canada and is located in the country of
purchase. As used in this Statement of Limited Warranty, the term "Date of Installation" shall refer to the earlier of
the date the Cook Top is installed or ten (10) business days after the date the Cook Top is sold to the first using
purchaser. The warranties stated herein apply only to the first using purchaser and are not transferable.
Standard Limited Warranty
Bosch warrants that its Cook Top is free from defects in materials and workmanship for a period of twelve (12)
months from the Date of Installation. During the warranty period, Bosch or its authorized service center will repair
or replace, at its sole option, any part that proves to have been defective under conditions of normal use without
charge. All removed parts and components shall become the property of Bosch, at Bosch's option. All replaced
and/or repaired parts shall assume the identity of the original part for purposes of this warranty and this warranty
shall not be extended with respect to such parts.
Extended Limited Warranty
Bosch further warrants that the electric heating elements and controls of the Cook Top and the ceramic glass of the
Cook Top shall be free from defects in materials for a period of time beginning on the twelfth (12th) month from the
Date of Installation and continuing until the sixtieth (60th) month from the Date of Installation ("extended warranty
period"). During the extended warranty period, Bosch will replace any electric heating elements, controls, or
ceramic glass of the Cook Top that proves to have been defective under normal conditions of use without charge,
excluding any labor (including but not limited to labor charges incurred in the removal and reinstallation of any
part), transportation, and/or shipping costs incurred in the performance of this extended warranty. All replaced parts
covered under this paragraph shall assume the identity of the original for purposes of this extended warranty and this
warranty shall not be extended with respect to such parts.
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Warranty (2)
Other Conditions of the Limited Warranties
The warranties provided in this Statement of Limited Warranty exclude defects or damage resulting from (1) use of the
Cook Top in other than its normal and customary manner (commercial use of the Cook Top shall not be deemed normal
or customary), (2) misuse, abuse, accidents or neglect, (3) improper operation, maintenance, installation or unauthorized
service, (4) adjustment or alteration or modification of any kind, (5) a failure to comply with applicable state, local, city,
and county electrical and/or building codes, (6) spills of food or liquid, and (7) external forces such as floods, fires, acts
of God or other circumstances beyond Bosch's control. Also excluded from this warranty are scratches and damages on
external surfaces and exposed parts Cook Tops on which the serial numbers have been altered, defaced or removed.
To the extent allowed by law, this warranty sets out your exclusive remedies with respect to products covered by it,
whether the claim arises in contract or tort (including strict liability and negligence) or otherwise. Bosch will not be
liable for consequential or incidental damages, losses, or expenses. THIS WARRANTY IS IN LIEU OF ALL OTHER
EXPRESS WARRANTIES. ANY WARRANTY IMPLIED BY LAW, WHETHER FOR MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, SHALL BE EFFECTIVE ONLY FOR THE PERIOD
THAT THIS EXPRESS WARRANTY IS EFFECTIVE. No attempt to alter, modify, or amend this warranty shall be
effective unless authorized in writing by an officer of the Robert Bosch Corporation.
How to Obtain Warranty Service
To obtain warranty service for the Cook Top, you should contact the nearest Bosch authorized service center or BSH
Home Appliances Corporation, Bosch, 5551 McFadden Avenue, Huntington Beach, CA 92649 or phone our Bosch
Customer Service Telephone Line at: (800) 944-2904 (Monday through Friday 5:00 am to 5:00 pm PST).
Notice To California Owners
If your Cook Top needs warranty service and there is no authorized Bosch service center reasonably close to you, you
may notify the Bosch reseller from whom you purchased the Cook Top. If the Bosch reseller fails to repair or replace
the defective parts, or partially refund your purchase price (where applicable), you may have the Cook Top repaired at
any large appliance repair shop or center and you will be reimbursed for all reasonable expenses provided the costs are
substantiated in writing and the worked performed is covered by this warranty. Bosch shall not reimburse any repair
costs hereunder which exceed the depreciated value of the Cook Top.
1st Edition/Revision 1 (08/18/2005)
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Warranty -- Serial # Label
The serial # label,
located
on
the
bottom
of
the
housing,
shows
necessary warranty
information.
Model # - “NES932UC”
Factory serial # - Can convert factory serial # to FD # for warranty
use. 1st 2 digits show factory # (82 = New Bern cooking), 3rd digit
shows year (2 = 2002), 4th - 6th digits show day of year built (242 =
242nd day = 8/30/02). So, serial # starting with “822242…” =
cooktop built @ New Bern with FD 8208.
NOTE: NES cooktops through
7/30/02 (FD8207) didn’t have
FD #’s on the serial # labels.
To process warranty claims,
serial #’s must be converted to
FD #’s for these cooktops.
1st Edition/Revision 1 (08/18/2005)
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Installation -- Overall Dimensions, Ratings &
Clearances (NEB93x same dimen. as NES 930)
NOTE: The cooktop is designed to be mounted
next to combustible materials. No additional
clearances are needed to back and side walls.
1st Edition/Revision 1 (08/18/2005)
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Installation -- Cutout Dimensions
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Installation -- Cutout Dimensions with
Bosch DHD
Downdraft
NES 73 30” Cooktops
NES/NEB 93 36” Cooktops
15/16”
15/16”
27”
2-1/4”
DHD 805/865
NES 73
28-7/8”
33”
2-1/4”
DHD 905/965
20”
22-1/4”
NES/NEB 93
20”
22-1/4”
34-7/8”
1st Edition/Revision 1 (08/18/2005)
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Installation -- Electrical Supply & Basic Dimensions
11-12.
11
11
12
11
11
12
12
13
13
11.
NOTE: Be sure to follow
all national & local codes.
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Installation -- Cutout Dimensions & Cabinet Prep
12
11.
countertops (see page 12)
HINT: Seal cooktop
edges using foam tape
supplied with cooktop.
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Installation -- Solid Surface Prep & Electrical
Connections
pp. 11-12
NOTE:
Cooktops must be
grounded to reduce the risk of shock
should any malfunctions occur.
CAUTION: Along with rest of instructions on pages 2-4, follow above instructions when installing onto granite,
marble, Corian®, Surell™ or other natural/solid material countertops. Heat reflective tape must be used.
1st Edition/Revision 1 (08/18/2005)
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Operation -- Controls
To select heating level,
touch desired element,
then twist knob.
1
2
To turn off element,
touch until “0” appears.
To keep food warm, touch element
key, then touch keep warm key.
To size pots for dual
elements,
press
desired
element, then press pot sizing
key and then rotate knob to
desired heating level.
If panel lock came on (if
magnetic
knob
was
removed for > 10 seconds),
replace knob, then push
and hold down panel lock
touch key until panel lock
light goes out.
1st Edition/Revision 1 (08/18/2005)
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Operation -- Typical Displays
Residual Heat
Element On
(showing heat level)
Dual (Outer)
Element On
(showing heat
level)
Element Off
Low (keep warm)
Panel Lock On
(when knob missing)
1st Edition/Revision 1 (08/18/2005)
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Disassembly -- Cooktop Access
1
2
3
5
4
HINT: The screw bushings
keep the cooktop housing
away from the countertop
and must be kept. Don’t
install the screws without
the bushings.
c Carefully remove cooktop from
countertop and place upside-down
on working surface. Place a cloth
or other soft material down 1st to
avoid scratching glass maintop.
d Remove two (2) T-20 Torx screws
from both side panels.
e Lift side panels up and out.
f Remove two (2-3) T-20 Torx screws
from both sides of housing.
g Remove housing and carefully lay
aside.
1st Edition/Revision 1 (08/18/2005)
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Disassembly -- Control Panel
2
1
Disconnect
wires as
needed.
3
Lift board up and out.
Remove (2) T-20 Torx screws from housing cover.
4
Bottom of board showing digital displays & magnetic touch/knob sensors.
CAUTION: Take care
not to break the plastic
board standoffs.
1st Edition/Revision 1 (08/18/2005)
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Disassembly -- Heating Elements
Disconnect wire harness
from element.
Disconnect element holddown
rails, connecting strips and
holddown brackets by removing
T-20 Torx screws from them.
1st Edition/Revision 1 (08/18/2005)
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Reassembly -- Control board (1)
The control board must be reassembled so 4 of the 6 light blue standoffs
(“pins”) engage the 4 holes in the metal plate glued to the Ceran glass
maintop. If not, the magnetic knob & digital displays won’t line up.
NOTE: The other 2 standoffs don’t engage any holes in the plate.
CAUTION: Don’t force the standoffs in place (so they’re not broken).
1st Edition/Revision 1 (08/18/2005)
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Reassembly -- Control Board (2)
Before mounting the control board, make
sure each of the 6 light blue standoffs
(“pins”) are inserted properly into the
component boards. The two boards should
be parallel.
HINT: The screw bushings
keep the cooktop housing
away from the countertop
and must be kept. Don’t
install the screws without
the bushings.
…and that’s all
there is to taking
apart the cooktops!
1st Edition/Revision 1 (08/18/2005)
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NES 73 Wiring Diagram
1st Edition/Revision 1 (08/18/2005)
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NES 93 Wiring Diagram
1st Edition/Revision 1 (08/18/2005)
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NEB Wiring Diagram
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NES 73 Strip Circuit Diagram -Resistance Measurements
Heating
Elements
2
NES 73
Element
4
LF
RF
LR
RR
Single Elements
Dual Elements
Inner
Outer
3 (LF)
4A (RR)
2-4
Terminals
2-3
2-4A
3-4
4A-4
49.7Ω
37.4Ω
45.6Ω
80.2Ω
39.3Ω
----------
---------137.4Ω
---------57.8Ω
88.8Ω
----------
For dual elements,
the terminal #’’s
are also stamped
on
the
metal
element housing.
Typical element terminal markings
HINT: The right rear (RR) element on NES 73 cooktops & the center rear
(CR) element on NES 93 cooktops have separate 4 & 4A terminals. All other
elements have terminal 4 on the same terminal block as their other terminals.
1st Edition/Revision 1 (08/18/2005)
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NES 73 Strip Circuit Diagram -- Control Board &
Element Wiring (viewing underside of maintop)
2
RR
GY
Inner
4
Outer
4
4A
GY
BL
2
RF
RR/RF Heating Elements
BR
YE
X33
Control Board
X32
To L1 To RF/RR
LF
D
u
a
l
(LF)
LR
To L1 To LF/LR
X31
X30
X5
X6
RR
D
u
a
l
(RR)
RF
To L2
X7
X4
Transformer
To L2
X1
X9
X11
X12
X2
To N
YE
4
LF
BL
4
2
3
Inner
Outer
LR
RR
RF
Control
To Gnd.
BR
YE
OR
LR
X3
OR
LR/LF Heating Elements
LF
2
HINT:
On dual
elements, terminal
“3” or “4A” is for
outer elements and
terminal “4” is for
inner elements.
1st Edition/Revision 1 (08/18/2005)
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NES 73 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (1)
With the control side housing panel removed, quick resistance checks can be
made across single or dual elements at the control board.
2
Single Elements
Dual Elements
Inner
4
49.0
Outer
3 (LF element) or
4A (RR element)
HINT: The two gray wires can be hard to reach with just the side panel removed. If necessary
to measure RF & RR elements, remove entire housing and measure at elements.
WARNING! Disconnect cooktop before making any resistance measurements.
1st Edition/Revision 1 (08/18/2005)
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NES 73 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (2)
All resistances of LF/LR elements can be measured at the control board.
LR
LF
RR
RF
Control Board
X33
X32
To L1 To RF/RR
L
F
Control
Viewing
underside of
maintop
L
R
To L1 To LF/LR
X31
X5
X30
X6
D
u
a
l
(LF)
X7
R
R
R
F
To L2
X4
D
u
a
l
(RR)
Transformer
To L2
X1
X9
X11
X12
X2
X3
OR
39.3Ω LF outer element (to BL wire)
49.0
HINT: Measure to
orange (OR) wires
for
all
three
measurements.
45.6Ω LR element
(to BR wire)
49.7Ω LF inner element (to YE wire)
WARNING! Disconnect cooktop before making any resistance measurements.
1st Edition/Revision 1 (08/18/2005)
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NES 73 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (3)
Photos showing measuring LF/LR elements at the control board.
Measuring LF/LR Elements
To L1
To
L1
To
RF/RR
To LF
inner
To
LR
To LF
outer
To
LF/LR
49.0
HINT: Measure to
orange (OR) wires
for
all
three
measurements.
49.7Ω LF inner
element (to YE wire)
45.6Ω LR
element (to
BR wire)
39.3Ω LF
outer element
(to BL wire)
1st Edition/Revision 1 (08/18/2005)
29
NES 73 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (4)
All resistances of RF/RR elements can be measured at the control board.
GY
HINT: Measure all
to common
gray wires
Control
Board
X33
X32
To L1 To RF/RR
L
F
L
R
To L1 To LF/LR
X31
X30
X5
80.2Ω RR
inner element
(to YE wire)
HINT:
Measure to
gray (GY) wires for all
three measurements.
X6
D
u
a
l
(LF)
R
R
R
F
To L2
X7
X4
49.0
D
u
a
l
(RR)
Transformer
To L2
X1
X9
X11
X12
X2
X3
LR
LF
RR
RF
Control
Viewing
underside of
maintop
57.8 Ω RR outer element (to BL wire)
37.4Ω RF element (to BR wire)
WARNING! Disconnect cooktop before making any resistance measurements.
1st Edition/Revision 1 (08/18/2005)
30
NES 73 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (5)
Photos showing measuring RF/RR elements at the control board.
Measuring RF/RR Elements
To L1
To
LF/LR
To
RF
To
RF/RR
To
RR
inner
To RR
outer
To L1
49.0
57.8Ω RR outer
element (to BL wire)
HINT: Measure to
gray (GY) wires
for
all
three
measurements.
80.2 Ω RR inner
element (to YE wire)
37.4Ω RF element
(to BR wire)
1st Edition/Revision 1 (08/18/2005)
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NES 93 Strip Circuit Diagram -Resistance Measurements
Heating
Elements
NES 93
Element
2
Single Elements
Dual Elements
Inner
4
Outer
3 (LF, RF)
4A (CR)
LF
RF
LR
CR
RR
2-4
Terminals
2-3
2-4A
3-4
49.7Ω
70.5Ω
45.6Ω
80.2Ω
37.4Ω
39.3Ω
50.7Ω
----------
---------57.8Ω
----
88.8Ω
120.8Ω
----------
4A-4
---------137.4Ω
----
For dual elements,
the terminal #’’s
are also stamped
on
the
metal
element housing.
Typical element terminal markings
HINT: The right rear (RR) element on NES 73 cooktops & the center rear
(CR) element on NES 93 cooktops have separate 4 & 4A terminals. All other
elements have terminal 4 on the same terminal block as their other terminals.
1st Edition/Revision 1 (08/18/2005)
32
NES 93 Strip Circuit Diagram -- Control
Board & Element Wiring (viewing underside of maintop)
YE
RR/RF/CR
Heating
Elements
2
RF
Inner
4
Outer
4
YE
GY
3
2
BR
2
CR
Inner
OR
RR
Outer
4
YE
4A
VT
BL
Main
Control
Board
HINT: Measure
all to
common
gray wires
X33
BL
X32
To L1 To RF/RR
L
F
L
R
To L1 To LF/LR
X31
X30
X5
X6
D
u
a
l
(LF)
X7
VT
R
R
R
F
To L2
X8
X4
D
u
a
l
(RF)
X11
To CR
X51
To L1
Transformer
To L2
X1
X9
X50
X2
X12
X3
X52 To CR
X53 To L2
Aux. Control
Board
LR
LF
BL
OR
GY
4
CR
RR
LR
RF
Control
Viewing underside of maintop
BR
2
4
3
LF
Inner
OR
2
Outer
LR/LF Heating Elements
HINT: On dual elements,
terminal “3” or “4A” is for
outer elements and terminal
“4” is for inner elements.
1st Edition/Revision 1 (08/18/2005)
33
NES 93 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (1)
With the control side housing panel removed, quick resistance checks can be
made across single or dual elements at the control board.
2
NES 73 shown
Single Elements
Dual Elements
49.0
Inner
4
LR
Outer
3 (LF/RF elements) or
4A (CR element)
LF
CR
HINT: The two rear yellow wires on the main board and the two brown wires on the auxiliary
RR
RF
board can be hard to reach with just the side panel removed. If necessary to measure CF, RF
& RR elements, remove entire housing and measure at elements.
Control
Viewing
underside of
maintop
WARNING! Disconnect cooktop before making any resistance measurements.
1st Edition/Revision 1 (08/18/2005)
34
NES 93 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (2)
All resistances of LF/LR elements can be measured at the main control board.
HINT: MeasureMain
all to Control
common Board
gray wires
X33
X32
To L1 To RF/RR
L
F
L
R
To L1 To LF/LR
X31
X30
X5
X6
D
u
a
l
(LF)
X7
R
R
R
F
To L2
X8
X4
D
u
a
l
(RF)
X11
X12
To CR
X51
To L1
Transformer
To L2
X1
X9
X50
X2
X3
X52 To CR
X53 To L2
Aux. Control
Board
OR
39.3Ω LF outer element (to BL
wire)
45.6Ω LR element (to GY wire)
49.0
49.7Ω LF inner element (to BR wire)
HINT: Measure to orange (OR)
wires for all three measurements.
WARNING! Disconnect
cooktop before making
any resistance
measurements.
1st Edition/Revision 1 (08/18/2005)
35
NES 93 Strip Circuit Diagram -Quick Element Resistance Check at Control Board (3)
All resistances of RF/RR/CR elements can be measured at the control boards.
49.0
HINT: Measure to brown (BR) wire for both CR measurements.
YE
HINT: Measure all
to common
wires
Main
Controlgray
Board
X33
To L1 To RF/RR
L
F
D
u
a
l
(LF)
L
R
To L1 To LF/LR
X31
BR
X32
X30
X5
X6
X7
R
R
R
F
To L2
X8
X4
D
u
a
l
(RF)
X11
X12
To CR
X51
To L1
Transformer
To L2
X1
X9
X50
X2
X3
X52 To CR
X53 To L2
Aux. Control
Board
49.0
HINT: Measure
to yellow (YE)
wires for all
three
RF/RR
measurements.
50.7Ω RF outer
element (to GY wire)
57.8Ω CR outer
element (to BL wire)
70.5Ω RF inner element (to BL wire)
37.4Ω RR element
(to OR wire)
WARNING! Disconnect cooktop before making any resistance measurements.
80.2Ω CR inner
element (to VT wire)
1st Edition/Revision 1 (08/18/2005)
36
mTwist Error Codes
•
•
•
•
•
•
•
•
ER 22 /*Keyboard */
ER 35 /*Selection of Keys */
ER 25 /*False connection of mains */
ER 26 /*Relais supply voltage too high (off state of control) */
ER 12 /*Mismatch of Relais port pin and software register */
ER 13 /* Invalid EEPROM data */
ER 23 /*PWM-frequency out of limit */
ER 24 /*Wrong number of Relais */
1st Edition/Revision 1 (08/18/2005)
37
NES 73/93 Service Tips -- Ratings
Model
NES 73
NES 93
Rating
LF
Wattage (W)
Dimensions (mm)
Dimensions (in.)
Resistance (Ω)
Same as NES 93
Wattage (W)
Dimensions (mm)
Dimensions (in.)
Resistance (Ω)
Same as NES 73
1100/2500
140/230
5.5/9.0
49.7/39.3
LF
1100/2500
140/230
5.5/9.0
49.7/39.3
LF
LR
CR
RR
RF
1200
700/1700
1500
140
120/180
160
5.5
4.7
6.3
45.6
80.2/57.8
37.4
LR
CR
RR
1200 700/1700
1500
800/1900
140 120/180
160
120/195
5.5
4.7
6.3
4.7/7.6
45.6 80.2/57.8
37.4
70.5/50.7
LR
RR
RF
--
•
NES 73 rated 208-240 VAC, 30A, 6.9 kW, 60
Hz -- uses 28A @ 240 VAC & 24A @ 208 VAC.
•
NES 93 rated 208-240 VAC, 40A, 8.8 kW, 60
Hz -- uses 37A @ 240 VAC & 32A @ 208 VAC.
1st Edition/Revision 1 (08/18/2005)
38
NES 73/93 Service Tips -- Troubleshooting
Symptom
Problem
Solution
Panel lock Magnetic knob has been Replace magnetic knob, then press and hold
light is on.
removed or panel lock key panel lock key until light goes out.
has been pressed.
Cooktop
Power is off or control Check incoming power. If OK (240 VAC),
won’t run at board has failed.
then replace control board.
all.
Element
Element has failed.
Disconnect power and measure resistance at
won’t heat.
control board or element terminals (see
resistance charts). Replace faulty element.
Element
Wire harness is damaged Check wire harness for continuity and to
won’t heat. or shorted.
ground (to check for shorts). Replace faulty
wire harness.
WARNING! Disconnect cooktop before starting any repairs.
1st Edition/Revision 1 (08/18/2005)