Vinotemp 3500HZD Manuale utente

WINEMATE Cooling Unit

Service Manual

VINO3500HZD

VINO4500HZD

VINO6500HZD

VINO8500HZD

Vinotemp International Inc.

www.vinotemp.com

- 1 -

SAFETY INFORMATION

- 2 -

TABLE OF CONTENTS

1. Introduction………………………………………………..3

I. Goals and Objectives…………………….…...……………………………3

II. R134a Refrigerant Service Information.....................…………..…….3

2. Component Information and Access………………….5

I. Model and Serial Label Location…………………………………………5

II. Component Access…………………………………………………………6

1) Removing the Outer Cover…………………………..……………...…..6

2) Removing the Inner Styrofoam Cover…..……………………………..6

3) Removing the Fan Shroud…………………..…………………………..8

4) Removing the Electronic Controller……………..……………………..9

5) Removing the Thermistor………………………………………………..9

6) Removing Fan Motors…………………………………………………...10

7) Removing the Start Relay and Overload Protector …………….....10

8) Removing the Compressor……..………………………………………11

9) Removing the Condenser……..………………………………………..12

10)Removing the Evaporator…..…………………………………………..12

3. Servicing and Diagnosis……………………………….13

I. Identifying Component Problems........……….…….………………….13

1) Compressor……………………………………………………………….13

2) Start Relay…………………………………………………………………14

3) Overload Protector.………………………………………………………15

4) Electronic Controller……………………………………………………15

5) Thermistor..………………………………………………………………..17

6) Fan Motors.………………………………………………………………..17

II. Wiring Diagram.….……..…………………………………..……………..18

III. Troubleshooting Chart.…....…………….………………………………19

4. Installation and Operation……………………………..21

I. Installation Instructions………..…………………………………………21

II. Operation Information.….………………………………………………..22

5. Customer Support………………………………………24

6. Warranty Information…………………………………..25

I. Limited Warranty …………………………………..……………………..25

II. Limitation of Implied Warranty.………………………………………….26

- 3 -

1. Introduction

VINOTEMP assumes no responsibility for any repairs made on

products by anyone other than authorized service technician

This manual has been prepared to provide the information on installing,

servicing, troubleshooting and repairing procedures for the WINEMATE

3500HZD, 4500HZD, 6500HZD and 8500HZD cooling unit.

I. Goals and Objectives

The goal of this manual is to provide detailed information that will enable the

service personnel to properly install and repair the cooling unit, and troubleshoot

and diagnose malfunctions.

The objectives of this manual are that the service personnel will

•Fully understand the proper safety precautions

•Successfully install the cooling unit

•Successfully troubleshoot and diagnose malfunctions

•Successfully perform necessary repairs

•Successfully return the cooling unit to proper operational status

II. R134a Refrigerant Service Information

This cooling unit 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 components

•Rust inhibitors

•Leak detection dyes

•Any other types of additive

As a result, the following precautions should be observed:

•Use equipment dedicated to R134a sealed system only.

•Use R134a refrigerant for back-flushing.

- 4 -

•Use dry nitrogen to purge the system.

•Do not overcharge the refrigeration system.

•Do not leave replacement compressor open to the atmosphere for more

than 10 minutes.

•Do not operate the compressor without refrigerant charge in the system.

•Do not use the compressor if the rubber plugs on the replacement

compressor appear to have been tampered or removed.

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

system.

•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

sealed system.

Table 1-1 Health and Safety Handling of R134a

Allowable Overall Exposure Limit 1,000 ppm

Vapor Exposure to Skin No Effect

Liquid Exposure to Skin Can cause frostbite

Vapor Exposure to Eyes Can cause very slight irritation

Liquid Exposure to Eyes Can cause frostbite

Above Minimum Exposure Limit Can cause asphyxiation, tachycardia

and cardiac arrhythmia's. Wear

appropriate skin and eye care.

Spill Management Combustible sources. Evacuate or

ventilate area.

May decompose if in contact.

Fire and Explosion Hazards Made with flames and heating

elements. Container may explode if

heated due to pressure rise.

Combustion products are toxic.

Storage Conditions The procedures/rules for R12 also

apply to R134a.

Reclaim

- 5 -

2. Component Information and Access

This section provides you the component information and access inside the

cooling unit. The components and their locations are shown Figures 2-1 through

2-11 below.

I. Model Number & Serial Label and Component Locations

Figure 2-1

Label

- 6 -

II. Component Access

1) Removing the Outer Cover

1. Unplug the WINEMATE cooling unit or disconnect power.

2. Remove the WINEMATE cooling unit from the enclosure.

3. To remove the outer cover, remove all screws from each side and on the

top.

Figure 2-2

2) Removing the Inner Styrofoam Covers

Once the outer cover is removed, this will expose the inner styrofams. The top

large Styrofoam cover seals off the condenser and evaporator fan compartments.

To gain access to the other components, the styrofoam covers will need to be

removed. To separate the top styrofoam covers, a knife can be used to cut along

the seam and through the seal. Take care as not to damage any wiring or the

styrofoam pieces.

- 7 -

Figure 2-3

Figure 2-4

- 8 -

Figure 2-5

3) Removing the Fan Shroud

1. Remove the 4 rivets

2. Disconnect wires

3. Remove the shroud

Figure 2-6

- 9 -

4) Removing the Electronic Controller

Figure 2-7

Figure 2-8

1. Unplug the WINEMATE cooling unit or disconnect power.

2. Remove WINEMATE cooling unit from the enclosure opening

3. Remove the top large styrofoam cover.

4. Disconnect all three connectors for the electronic controller.

5. Unsnap the thin plastic cover off the front of the electronic controller.

6. Remove the two screws from the front of the electronic controller.

7. Locate the retainer just inside the front panel going around the outside of

the electronic controller. While squeezing both tabs of the retainer, push

the electronic controller out of the opening.

5) Removing the Thermistor

1. Unplug the WINEMATE cooling unit or disconnect power.

2. Remove the WINEMATE cooling unit from the enclosure opening.

3. Remover the outer cover.

4. Remove the top large styrofoam cover.

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