Bosch Divar 700 Series Installation guide

Service Basic Instructions

Bosch Wall Ovens Series 700

Training Session

April, 2002

SYSTEM PARTS

1.DISPLAY BOARD. It’s mounted on the front

panel, it’s the oven brain. It handles the user

interface (display, keyboard and knob), receives

inputs and send information to drive all outputs

through the Power Board.

2.POWER BOARD. It’s mounted on the cooling

channel, it provides the Display Board with all its

power lines. It manages the latch, the heaters, the

auxiliary loads following the Display Board

indications. It measures the temperature read by

the sensor.

3.HEATING ELEMENTS (nominal power at 240V).

a.UPPER ELEMENT 3500W

b.LOWER ELEMENT 3000W

c.RING ELEMENT 2500W

d.ADDITIONAL ELEMENT 1000W

4.AUXILIARY RELAY BOARD. It’s mounted on

the front panel. It provides the working fan dual

speed (only double oven) and the Double Line

Break feature (only for Canadian requirements).

5.SAFETY THERMOSTATS. The oven is provided

with two safety thermostats. They simply cut off

L2 when temperature inside gets too high. The

high temperature one (165°C) is always in series

with the heaters, the low temperature (110°C) is

by-passed during self-clean. They are mounted

together, behind the cooling fan.

6.KLIXON RELAY BOARD. It’s mounted on the

cooling channel, to by-pass the low temperature

safety thermostat during self-clean.

7.TOUCH KEYBOARDS. They can be 6 pads

(single oven) or 8 pads (double oven). They are

glued on the front panel glass.

8.ROTARY SWITCH. It’s activated through the

knob on the front panel. The control detects

rotation verse and number of ticks.

9.TEMPERATURE SENSORS. They are mounted

inside the cavity, fixed from the outside, on the

rear wall. The only mean to measure oven

temperature.

10.LATCH MECHANISM. To lock the door when

self-clean is running, until the cavity cools down.

11.AUXILIARY LOADS. Working and cooling fans,

oven lights, for both cavities.

12.MEAT PROBE. The oven is provided with a meat

probe, which needs only to be plugged in its

receptacle on the cavity left side wall.

IMPORTANT WARNINGS

1. LATCH AUTO-TEST. At power-up, the

control runs a latch mechanism self-test. The

display shows the message UNLOCKING

DOOR until both cavities have completed

their lock/unlock cycle. This allows the user

to restore the latch position, in case of any

problem: turn off the main power supply and

wait for a few minutes before re-powering.

Each latch takes about 30sec. to run the test.

If the control can’t complete this test, power

down the oven, search for a hardware fault

and remove it.

2. BY-PASSING LATCH TEST. If there is

any reason to by-pass the latch test, at

power-up, simply keep the [Start] key

pressed until the clock is displayed.

3. OVEN MODEL SELECTION OR

MANUAL TEST. If you intend to enter this

special sections, never press [Cooking

Mode] key before doing it because the two

features will be disabled. In any case, both

features must be accessed within 5 minutes

from the power-up.

OVEN MODEL SELECTION

This operation is normally executed at the manufacturer facilities.

If the display board has to be replaced, the oven model must be

reconfigured. At first power-up, the Double Oven is always

configured as a 30” both multifunction cavities.

MANUAL TEST ACCESS PROCEDURE:

1. Press CANCEL key.

2. Turn the knob 4 detents CW.

3. Turn the knob 6 detents CCW.

4. Press START key.

5. The writing MANUAL TEST is displayed.

To reconfigure the oven model as a different double:

1. Press [Cooking Mode] key.

2. Turn the knob to select the correct oven model.

N° MOD DISPLAY OVEN MODEL

1C30 CONVECT 2 30” DOUBLE OVEN

MULTIFUNCTION/MULTIFUNCTION

3D30 THERMAL 2 30” DOUBLE OVEN

MULTIFUNCTION/THERMAL

5G27 CONVECT 2 27” DOUBLE OVEN

MULTIFUNCTION/MULTIFUNCTION

7H27 THERMAL 2 27” DOUBLE OVEN

MULTIFUNCTION/THERMAL

3. Press [Start] key to accept the new selection, the control

sounds a tone.

4. Press [Cooking Mode] key again to quit the oven model menu

and going back to manual test procedure.

OVEN MODEL SELECTION SINGLE

OVEN

This operation is normally executed at the manufacturer facilities.

If the display board has to be replaced, the oven model must be

reconfigured. There is only one single part number for the display

board then, after having replaced it, also a single oven is

configured as a double oven 30” Multifunction/Multifunction.

IMPORTANT: ALWAYS KEEP PRESSED START KEY AT

FIRST POWER-UP ON A SINGLE OVEN, UNTIL THE

CLOCK IS DISPLAYED.

Otherwise, the control will try to run the latch auto-test but,

missing one cavity, it will never be able to complete it. At first

power-up, the control realizes that one cavity is missing: the

display shows a calibration error message. Ignore it and proceed

with the…

MANUAL TEST ACCESS PROCEDURE

1. Press CANCEL key.

2. Turn the knob 4 detents CW.

3. Turn the knob 6 detents CCW.

4. Press START key.

5. The writing MANUAL TEST is displayed.

To reconfigure the oven model as a single:

1.Press [Cooking Mode] key.

2.Turn the knob to select the correct oven model.

N° MOD DISPLAY OVEN MODEL

0A30 CONVECT 1 30” SINGLE MULTIFUNCTION

2B30 THERMAL 1 30” SINGLE THERMAL

4E27 CONVECT 1 27” SINGLE MULTIFUNCTION

6F27 THERMAL 1 27” SINGLE THERMAL

3.To confirm the selection:

a. If the Display Board is still configured as a

double, KEEP THE [START] KEY PRESSED

UNTIL THE CLOCK APPEARS ON THE

DISPLAY. The control resets itself.

b.If the Display Board is already configured as a

single, press the [Start] key to accept the new

selection, the control sounds a tone. Press then

[Cooking Mode] key again to quit the oven

model menu and going back to manual test

procedure.

POWER SUPPLY SELECTION

The oven provides a 208V power supply option, for areas

where the standard 240V is not available. First connect the

oven to power then, to access this option, follow the

procedure below:

240V/208V POWER SELECTION:

1.Open the oven door (upper oven for double).

2.Turn the knob 6 detents CW.

3.Turn the knob 9 detents CCW.

4.Press [Start] key.

5.240 SELECTED is displayed (or 208 SELECTED).

6.Press [Cooking Mode] key to change selection.

7.Touch [Start] key to confirm the new selection.

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