ZMM Haskovo Joybook R48 Series Service Manual download pdf (Page 10)

PMOR3021S

PMOR3021B

PMOR3021R

VENTILATION METHODS HOT AIR EXHAUST

1. VERTICAL VENTING

For this venting method, hot air rising from the

conventional range below is drawn in by the hood fan

motor through the grease filters at the right and left sides

of the base cover, up through the right and left sides of

the oven cavity, then discharged vertically at rear center

top of the oven, into the customer's vent system.

: AIR FLOW

resistance reaches the value set according to the menu,

supplementary cooking is started. The time of supplemen-

tary cooking is determined by experiment with each food

category and input into the LSI.

An example of how sensor works: (BAKED POTATOES)

1. Potatoes at room temperature. Vapor is emitted very

slowly.

2. Heat Potatoes. Moisture and humidity is emitted rapidly.

You can smell the aroma as it cooks.

3. Sensor detects moisture and humidity and calculates

cooking time and variable power.

Cooking Sequence.

1. Operate the oven in sensor cooking mode by referring to

the operation manual.

NOTE: The oven should not be operated on SENSOR

immediately after plugging in the unit. Wait two

minutes before cooking on SENSOR.

2. The coil of shut-off relay (RY-1) is energized, the turntable

motor, oven lamp and cooling fan motor are turned on,

but the inverter unit is not turned on.

3. After about 32 seconds, the cook relay (RY-2) is

energized. The power transformer is turned on,

microwave energy is produced and first stage is started.

The 32 seconds is the cooling time required to remove

any vapor from the oven cavity and sensor.

NOTE: During this first stage, do not open the door or touch

STOP/CLEAR pad.

4. When the sensor detects the vapor emitted from the

food, the display switches over to the remaining cooking

time and the timer counts down to zero.

At this time, the door may be opened to stir, turn, or

season food.

5. When the timer reaches zero, an audible signal sounds.

The shut-off relay is de-energized and the inverter unit,

oven lamp, etc. are turned off.

6. Opening the door or touching the STOP/CLEAR pad, the

time of day will reappear on the display and the oven will

revert to an OFF condition.

2. HORIZONTAL VENTING

The air handing is the same as VERTICAL VENTING

except that the final air discharge is directed horizontally

out from the top rear of the oven into the customer's vent

system.

: AIR FLOW

MICROWAVE

AH SENSOR

3. RE-CIRCULATION (INSIDE VENTING)

The air handing is the same as VERTICAL VENTING

except that the final air discharge is directed horizontally

through the upper front of the oven into the kitchen. In

this case, the accessory charcoal filter RK-260 must be

provided to filter the air before it leaves the oven.

: AIR FLOW

GREASE

FILTER

HOOD FAN MOTOR

TO DUCT

HOOD

INTAKE

DUCT R

TO DUC

GREASE

FILTER

HOOD FAN MOTOR

HOOD

INTAKE

DUCT R

HOOD EXHAUST

LOUVER

HOOD FAN MOTOR

CHARCOAL

FILTER

GREASE

FILTER

HOOD

INTAKE

DUCT R

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ZMM Haskovo Joybook R48 Series Service Manual Page 10

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