Mabe Serviplus SEDNA ESTILO Manuel utilisateur

mabe

SERVICE MANUAL FOR SEDNA “ESTILO” REFRIGERATORS from Mabe

and G.E.

PUB # 06-MAN/RE-02

mabe

TABLE OF CONTENTS

OVERVIEW

FEATURES

Alarm, vacation mode, levels, turbo mode

TECHNICAL DATA

Electrical specifications, No-load operation, Cooling unit, Installation

AIRFLOW

Fan motors, baffle, lines

ICE FACTORY

Ice tray, filling ice buckets, ice disposal

ELECTRONIC CONTROL BOARDS

Deluxe electronic control card

Basic electronic control board

Control display board

DEFROST SYSTEM

OVERVIEW

The new no-frost refrigerator line called “IMAGINATION”, with 13, 15, 17 and 18

cubic foot capacity, is made in the refrigerator factory located in Queretaro,

Mexico.

The deluxe models (y) have basic electronic controls, while the deluxe models (z)

have display systems on the door. Some models include the QUICK FREEZER and

vacation mode button options for temperature control and defrost cycle.

Cooling unit: some models are designed with forced air cooling and have 2 fans,

one for the condenser and another one in the freezer for air circulation within the

refrigerator.

The new chamber for internal air distribution is equipped with the TURBO PLUS

COOLING SYSTEM that ensures the right temperature for each refrigerator

compartment.

DISCLAIMER

The information provided in this technical manual is designed for technical

personnel with knowledge and expertise in electricity, electronics and mechanics,

as a guide for servicing these automatic no-frost refrigerators. Any personal injuries

or property damages are the technical personnel's sole responsibility, for which

neither “MABE” nor “SERVIPLUS” will accept any liability based on the use of

this manual.

SAFETY

For your own safety, unplug the refrigerator from the electrical outlet before

servicing the appliance. If you need to test the appliance's power, amperage, etc.,

connect the appliance to the electric outlet only for the time required to make the

test.

The complete assembly of electronic boards and modules (elements) is very

sensitive to electric shock, and thus special procedures are required when handling

this material, like the use of ISOLATING STRIPS (IN WRISTBANDS, SHOES

OR GLOVES). YOU MUST NEVER TOUCH OR HANDLE THE BOARDS

IF YOU DO NOT HAVE THE PREVIOUSLY MENTIONED REQUIRED

EQUIPMENT.

FEATURES

A. Temperature Control Operation

The internal temperatures of the freezer and fresh food compartments can be regulated

individually to maintain better food conservation conditions, thus optimizing the use of

the appliance. These models feature controls for better temperature monitoring, one for the

freezer and one for the fresh food compartment.

The freezer control includes the maximum, medium and

minimum levels, to adjust the internal air-flow. The fresh

food compartment control allows temperature control from

level 1 (less cold) to 9 (coldest).

Fresh Food Compartment Temperature Control

To achieve the desired refrigeration you need to find the best

combination of temperatures for both the freezer and fresh

food compartment. Follow these instructions:

1) Start using your product keeping the factory preset

positions (medium level for both controls). Let the appliance

operate for 6 hours, so that the temperature becomes stable.

After this period, readjust the controls in case you need to

change the temperature.

2) The fresh food compartment control includes levels that

start at 1(less cold) to 9 (coldest). If necessary, adjust this

control and monitor the state of refrigerated items during a

few hours. In case you wish to adjust the control, you may

change it until you achieve the desired refrigeration level.

(Applicable in all models which do not have a Z in the

6th digit.)

3) The freezer control includes maximum, medium and

minimum levels. This refers to the amount of cold air that

will be sent to the refrigerator area. The lesser the air-flow in

the freezer, the quicker the fresh food compartment will

reach the desired temperature.

(Applicable in all models.)

Vacation Mode Directly enabled by pressing the button

(when enabled, the indicator light will turn on). It is disabled

by pressing the button or by opening the fresh food

compartment door for more than 10 seconds. You will also

see in the digital display an indicator light that swirls

quickly.

Turbo Mode Enabled and disabled pressing the button

(when enabled, the indicator light will turn on). You will

also see in the digital display an indicator light that swirls

quickly.

This feature remains enabled for approximately an hour.

Once this period is over, the refrigerator returns to normal

operation.

Alarm Enabled and disabled directly pressing the button

(when enabled, the indicator light will turn on).

Cooling Level If you press this button, the refrigerator's

cooling level can be increased from 1 to 9. Please see the

instructions for the fresh food compartment temperature

control in order to know how to select the appropriate

cooling level for your needs.

Operating Instructions for the External Controls

Cooling Unit System

Forced Air Cooling Unit

This kind of system uses fans in the freezer and the condenser area to

remove the hot air from the condenser and the refrigerator area.

Natural Convection With Static Condenser

Cooling Unit

CAPACITOR TO THERMAL PROTECTOR CONNECTION

THERMAL PROTECTOR

This component (installed in the compressor body) quickly detects any abnormal increase in temperature or excess

current caused by a failure of the electrical or mechanical system or an inappropriate application.

This compressor element consists of a bimetallic disc which, when it detects an excessive temperature in the

compressor or when its integrated resistance becomes too hot, due to an excessive current, bends and disconnects the

compressor, and the disc returns to normal electric contact when it cools off.

In this refrigerator model, the Thermal Protector and the PTC (resistor) are installed in one box, which is connected at

the same time to the 2 elements in the compressor.

THERMAL PROTECTOR

RESISTANCE

BIMETALLIC DISC

mabe

SAFETY

Before plugging the refrigerator into the electrical outlet, please make sure that:

All electrical connections are grounded and all wiring harnesses are connected, away from the sharp edges of the metal

plates, and that both the internal and external grounding connections of the appliance are properly connected.

ELECTRICAL SYSTEM

PTC (POSITIVE TEMPERATURE COEFFICIENT)

Unlike an electromechanical relay, the PTC resistor has no coil nor any moveable contacts. A PTC is a thermistor or,

in other words, a resistor sensitive to temperature, which can increase its resistance when the temperature is higher.

The operating element of the PTC is basically a highly pure barium titanate disc with aluminum coating.

When a certain voltage is transmitted to the PTC, at first a high current flows through it, raising its temperature and its

resistance. Due to the higher resistance, the current that feeds the starting coils of the compressor decreases

considerably.

This PTC property makes it possible for it to act as a substitute of the work carried out by the electromechanical relay

contacts.

CONTINUOUS LOAD (WORK) CAPACITOR

Some refrigerator models have an integrated 12 µf continuous load or work capacitor, at 200 A.C.V. (Alternating

Current Voltammetry), connected in a circuit parallel to the connections.

BARIUM TITANATE DISC

PTC

ELECTRICAL SPECIFICATIONS

Temperature Control (Level 5) ......................... ( )°F

Defrost Control ..................….............…...... 8, 10 AND12 hrs @ 35 min

Defrost Thermistor .............................................. °F

Voltage: 115V AC 60 Hz ................... Amp

Maximum Current Leakage ......................................... 0.75 mA

Maximum Grounding Step Resistance ..................... 0.14 Ohms

NO-LOAD OPERATION

MID/MID Control Position

Room Temperature: ........................................ 70°F 90°F

Fresh Food Compartment °F ....................................................

Freezer °F ....................................................

Compressor operation % ..........................

COOLING UNIT

Refrigerant charge (R134a) ................................... 3.5 ounce, 13 & 15 cubic foot models

Compressor cooling capacity, CB-E121 model .....................................

BTU/hr @ (3000 RPM)

Compressor minimum vacuum capacity ................................…............. 22 inches

Minimum equalized pressure

@70°F ....................................................................... 40 PSIG

@90°F ....................................................................... 54 PSIG

INSTALLATION

Minimum clearance required for air circulation:

ABOVE ........................................................................................ 1"

SIDES .............................................................................. 0.125"

BACK .................................................................................. 0.5"

AIR CIRCULATION

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