KitchenAid KUWS246 Manuale utente

TECHNICAL EDUCATION

KUWS246

WINE

CELLAR

JOB AID 4317201

KAR-5

INTRODUCTION

This Job Aid, KUWS246 WINE CELLAR, (Part No. 4317201), has been compiled to provide the most

recent information on design, features, troubleshooting, service and repair procedures for the 60 bottle

capacity wine cellar with glass door.

KUWS246 WINE CELLAR KitchenAid required sweep charge procedures are to be strictly adhered to

when repairing the sealed system. For a complete explanation of those procedures, refer to the Job

Aid, SWEEP CHARGE PROCEDURES FOR THE 90's, (Part No. 4321717) and its companion video

(Part No. 4321718.)

GOALS AND OBJECTIVES

The goal of this Job Aid is to provide detailed information that will enable the service technician to

properly diagnose malfunctions and repair the 60 bottle capacity wine cellar.

The objectives of the Job Aid are:

The service technician will -

• Understand proper safety precautions.

• Successfully troubleshoot and diagnose malfunctions.

• Successfully perform necessary repairs.

• Successfully return the wine cellar to proper operational status.

KITCHENAID CORPORATION ASSUMES NO RESPONSIBILITY

FOR ANY REPAIRS MADE ON OUR PRODUCTS BY ANYONE

OTHER THAN AUTHORIZED SERVICE TECHNICIANS.

FOR THE WAY IT'S MADE

III

TABLE OF CONTENTS

INTRODUCTION.................................................................................................................. ii

TABLE OF CONTENTS...................................................................................................... iii

SAFETY ............................................................................................................................ iv

SECTION ONE

SERVICE AND PARTS ........................................................................................................ 1

R134a Refrigerant........................................................................................................... 1

Component Location....................................................................................................... 2

SECTION TWO

THEORY OF OPRATION..................................................................................................... 3

TriZone® Cooling System...............................................................................................................3

Storage..........................................................................................................................................3

Cycle Defrost.................................................................................................................................4

Reversible Door ............................................................................................................................4

Door Adjustment ...........................................................................................................................4

SECTION THREE

COMPONENT ACCESS ...................................................................................................... 5

Component Compartment .............................................................................................................5

Evaporator.....................................................................................................................................6

SECTION FOUR

TROUBLESHOOTING AND DIAGNOSIS ........................................................................... 7

Troubleshooting Guide ..................................................................................................................7

Refrigeration System Diagnosis....................................................................................................8

Compressor Winding Resistance..................................................................................................8

SECTION FIVE

TECH TIPS........................................................................................................................... 9

Wiring Diagram .............................................................................................................................9

Strip Circuits..................................................................................................................................9

Serial and Model Number Designation........................................................................................10

Product Specification and Warranty Information Sources...........................................................10

SAFETY

▲▲

▲

! WARNING

• The power cord must be plugged into a 3-prong grounding-type wall receptacle, grounded

in accordance with the National Electrical Code, ANSI/NFPA 70 - latest edition and local

codes and ordinances.

• It is the personal responsibility of the consumer to have a proper 3-prong wall receptacle

installed by a qualified electrician.

• DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE

THE POWER CORD GROUNDING PRONG.

• A separate adequately fused and grounded circuit

should be available for this appliance.

• Do not remove any grounding wires from individual

components while servicing, unless the component

is to be removed and replaced. It is extremely

important to replace all grounding wires when

components are replaced.

To avoid the risk of electrical shock,

property damage, personal injury or death:

ELECTRIC SHOCK HAZARD

Disconnect electric supply from appliance before servicing.

Replace all panels before operating.

Failure to do so could result in death or electrical shock.

▲▲

▲

! WARNING

SEE SWEEP CHARGE PROCEDURES FOR THE 90's,

Part No. LIT4321717 FOR COMPLETE INSTRUCTION ON SERVICING THE

SEALED SYSTEM.

R134a

1,000 ppm

No effect

Can cause frostbite

Very slight irritation

Can cause frostbite

Can cause Asphyxiation, Tachy-

cardia and Cardiac Arrhythmias.

Wear appropriate skin and eye

protection. Use adequate venti-

lation.

Remove or extinguish ignition or

combustible sources. evacuate

or ventilate area.

May decompose if contact is

made with flames and heating el-

ements. Container may explode

if Heated due to pressure rise.

Combustion products are toxic.

The procedures/rules for R12

also apply to R134a.

Reclaim

HEALTH AND SAFETY HANDLING

Allowable Overall Exposure Limit

Vapor Exposure to Skin

Liquid Exposure to Skin

Vapor Exposure to Eyes

Liquid Exposure to Eyes

Above Minimum Exposure Limit

Safety and Handling

Spill Management

Fire and Explosion Hazards

Storage Conditions

Disposal Procedure

R134a REFRIGERANT SERVICE INFORMATION

This product uses R134a refrigerant. This refrigerant requires synthetic ester oil in the compressor.

This cooling system does not tolerate contamination from any of the following:

• Other Refrigerants

• Moisture

• Petroleum-based Lubricants

• Silicone Lubricants

• Cleaning Compounds

• Rust Inhibitors

• Leak Detection Dyes

• Any Other Type of Additive

As a result the following precautions should be observed:

• Use equipment dedicated to R134a sealed system service only.

• Do not leave a replacement compressor open to the atmosphere for more than 10 minutes.

• Always replace the filter-drier when performing any repairs on the sealed system.

•USE ONLY R134a REFRIGERANT FOR BACKFLUSHING AND SWEEP PROCEDURES.

• If the rubber plugs on the service replacement compressor appear to have been tampered

with or removed, DO NOT USE THE COMPRESSOR. Get another one.

• The filter-drier MUST be cut from the sealed system. Never unbraze the filter-drier from

system tubing. Applying heat will drive moisture back into the sealed system.

SERVICE AND PARTS

Section One

COMPONENT LOCATION

INTERIOR LIGHT

THERMOSTAT

CONDENSER

DRAIN CUP

DRAIN

TROUGH

WIRE

WINE RACK

GLASS SHELF

LIGHT SWITCH

COMPRESSOR

CONDENSER

FAN

HEAT

EXCHANGER

CAPILLARY

TUBE FILTER-DRYER

EVAPORATOR

THEORY OF OPERATION

Section Two

TRIZONE™ COOLING SYSTEM

The KitchenAid Wine Cellar features a TriZone™ Cooling System that allows storage of red wine in

the top racks at 60°F, white or blush wines in the middle racks at 50°F - 55°F, and sparkling wines in

the lower racks at 45°F in the same compartment without changing temperature settings.

Cooling is accomplished through a combination of thermostat cut-in and cut-out temperature settings,

placement of the evaporator and natural circulation of the air inside the compartment. The wine cellar

does not have an evaporator fan typically found in most refrigerator/freezers. Natural convection is

used to allow the warmer air in the compartment to "rise" while the colder air "falls". This causes a

temperature difference of approximately 15°F between the upper portion of the compartment and the

bottom. Temperatures in the middle of the compartment will be approximately 5°F to 10°F higher than

the temperature at the bottom..

The temperature control is factory preset at a mid point setting of 4½. This should allow the recom-

mended temperature range in a room with an ambient temperature of 72°F. Turning the control counter-

clockwise (a lower number) to raise the temperature inside the wine cellar. Turning the control clock-

wise (a higher number) will lower the temperature.

A number of factors will affect the internal temperatures of the cabinet:

1. Setting of the temperature control

2. Ambient room temperature

3. The number of times the door is opened and closed

4. The length of time the internal light is ON. (This affects wines primarily on the top rack.)

5. If installed in direct sun light or near a heat source

STORAGE SYSTEM

The wine racks allow for the proper horizontal storage of up to 60 bottles of wine. The bottles are

properly positioned so that the wine remains in contact with the cork to assure that the cork does not

become dry.

The racking system is designed with three parallel braces (rear, middle and front) per shelf. The

procedure for loading the rack is as follows:

1. Start at the left hand side of the rack and place the first

bottle on the rear and middle parallel braces with the

neck facing towards the front of the unit.

2. The next bottle should be placed on the front and middle

parallel braces with the neck facing towards the rear.

3. Alternate this stocking sequence moving from left to right

on each rack.

4. Flat storage is avaliable at the bottom of the

compartment.

CYCLE DEFROST

Under normal operation the evaporator will defrost following every cooling cycle. Once the refrigerant

stops circulating, cooling also stops. The nominal temperature inside the unit ranges from 45°F at the

bottom to 60°F at the top, which is sufficiently high enough for any frost that has accumulated on the

evaporator to melt and run off.

If the thermostat is set low enough to allow temperatures inside the unit to range below 32°F (particu-

larly at the top) frost may not completely melt and run off between run cycles and periodic manual

defrosting may be necessary.

REVERSIBLE DOOR

The ClearVue™ thermal-glass door of the KitchenAid wine cellar is reversible.

1. Remove the two (2) screws securing the bottom hinge to the door.

2. Remove the two (2) screws securing the top hinge to the door.

3. Remove the door from the unit.

4. Remove the three (3) screws securing the top hinge to the cabinet.

5. Invert the top hinge and install it on the bottom opposite side of the cabinet.

6. Remove the three (3) screws securing the bottom hinge to the cabinet.

7. Invert the bottom hiinge and intall it on the top opposite side of the cabinet.

8. Attach the top hinge to the door.

9. Attach the bottom hinge to the door.

10. Adjust the door to assure a proper seal to the cabinet. (See below)

DOOR ADJUSTMENT

The wine cellar door should always be squared to the cabinet to ensure a proper seal.

1. Loosen (do not remove) the three (3) screws in the door hinge plate at the top of the cabinet.

2. Align the door so that it is squared to the cabinet.

3. Tighten the three scews on the top hinge plate.

COMPONENT ACCESS

Section Three

COMPONENT COMPARTMENT

Access to the compressor, condenser, condenser fan and other sealed system components can be

gained from the back of the wine cellar.

Removing the Back Panel

The entire back of the wine cellar is covered by a one-piece back panel which must be removed to

access the component compartment.

1. Disconnect the electric power from

the appliance.

2. Empty the wine cellar of all contents.

3. Lock or tape the door shut.

4. Remove the eight (10) ¼" hex-head

screws securing the back panel to

the wine cellar cabinet.

5. Slide the power supply cord

through the hole in the back panel

and set the back panel aside.

If the compressor is to be replaced:

6. Remove the four (4) ¼" hex-head screws securing the back of the cabinet to the base

plate.

7. Loosen, but do not remove, the two (2) ¼" hex-head screws securing the front of the

cabinet to the base plate.

8. Remove the ¼" hex-head screw securing the condenser fan scroud to the cabinet.

9. Tilt the cabinet forward and insert a block of wood on each side between the cabinet and the

base plate.

For complete instructions on servicing the sealed system, refer to the Job Aid, Sweep Charge

Procedures for the 90's, Part No. LIT4321717 and its companion Video Tape, Part No. LIT4321718V.

REMOVE SCREWS

SECURING CABINET

TO BASE

LOOSEN SCREW

SECURING CABINET

TO BASE

REMOVE SCREWS

SECURING BACK PANEL

TO CABINET

SLIDE

POWER CORD

THROUGH HOLE

IN BACK PANEL

USE WOOD BLOCK

TO TILT CABINET

REMOVE SCREW

SECURING FAN SHROUD

TO CABINET

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