WINEMATE Cooling Unit Service Manual WM3500HZD WM4500HZD WM6500HZD WM8500HZD Vinotemp International Inc. www.vinotemp.
SAFETY INFORMATION -1-
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…………………..…………………………..
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.
• • • • • • • 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.
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.
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.
Figure 2-3 Figure 2-4 -7-
Figure 2-5 3) Removing the Fan Shroud 1. Remove the 4 rivets 2. Disconnect wires 3.
4) Removing the Electronic Controller Figure 2-7 Figure 2-8 1. 2. 3. 4. 5. 6. 7. Unplug the WINEMATE cooling unit or disconnect power. Remove WINEMATE cooling unit from the enclosure opening Remove the top large styrofoam cover. Disconnect all three connectors for the electronic controller. Unsnap the thin plastic cover off the front of the electronic controller. Remove the two screws from the front of the electronic controller.
5. Disconnect the thermistor with connector from the electronic controller. 6. Remove the thermistor from the mounting clip on the front of the evaporator. 6) Removing Fans Figure 2-9 The 2 condenser and evaporator fans are attached to the horizontal fan shroud. They are the same and all powered up at the same time. 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. 5.
1. 2. 3. 4. 5. 6. Unplug the WINEMATE cooling unit or disconnect power. Remove the WINEMATE cooling unit from the enclosure opening. Remover the outer cover. Remove the top large styrofoam cover. Remove the terminal cover from the compressor. Remove the start relay by pulling straight out away from the compressor terminal. 7. Remove the overload protector by pulling straight out away from the compressor terminal. 7) Removing the Compressor 1. 2. 3. 4. 5. 6. 7. 8.
9) Removing the Condenser 1. 2. 3. 4. 5. Unplug the WINEMATE cooling unit or disconnect power. Remove the WINEMATE cooling unit from the enclosure opening. Remover the outer cover. Remove the top large styrofoam cover and the inner divider. Place piercing valves onto the process tubes and discharge the refrigerant into an approved R134a recovery system. 6. Use a tubing cutter to remove the hot gas line and liquid line from the condenser. 7. Remove 4 rivets from the condenser. 8.
3. Servicing and Diagnosis This section instructs you how to service each component inside the cooling unit. I. Component Checking 1) Compressor The compressor acts as a pump, forcing refrigerant through the sealed system. A. Resistance Figure 3-1 1. Unplug WINEMATE cooling unit or disconnect power. 2. Remove the terminal cover from the compressor. 3. Remove the start relay and overload protector from the compressor.
5. Touch and hold one ohmmeter probe to the C (common) terminal, then touch and hold the other probe to the R (Run) terminal. The ohmmeter should show a reading of a few ohms. If not, the compressor is bad. 6. Touch and hold one ohmmeter probe to the C terminal, then touch and hold the other probe to the S (Start) terminal. The ohmmeter should show a reading between ten to twenty ohms. If not, the compressor is bad. 7.
A start relay’s function is to energize and de-energize the compressor’s start winding. The coil of the current type relay is connected in series with the run winding. When current flows through the coil, a magnetic force is produced, pulling the relay plunger up. With the relay plunger up, it connect the start winding and the run winding at the same time and the compressor starts.
The electronic controller allows the customer to select a temperature form 45 °F to 75 °F. When the thermistor senses a temperature above the setting value, the electronic controller will turn on the compressor and fan motors. Once the selected temperature is sensed, the electronic will turn off the cooling unit. A. Resistance 1. Unplug WINEMATE cooling unit or disconnect power. 2. Disconnect the connector with the red and white wires connected to the input of the electronic controller. 3.
Figure 3-4 1. 2. 3. 4. The WINEMATE unit needs to be plugged in. Locate the red and white wires going to the electronic controller. Set the voltmeter to the AC 200 scale. Touch and hold one voltmeter probe to one of the wire terminals, then touch and hold the other probe to the other wire terminal 5. The voltmeter should show a reading of 115 volts. C. Output Live Voltage 1. In order to test the output of the electronic controller, the WINEMATE cooling unit must be plugged in and powered up. 2.
3. Set the ohmmeter scale to the lowest setting. Touch and hold one ohmmeter probe to one of the wire terminals, then touch and hold the other probe to the other wire. 4. The ohmmeter should show a reading of tens ohms. 5. Reconnect the wires to the proper terminals as previously marked. B. Live voltage 1. The WINEMATE unit needs to be plugged in and turned on. 2. Locate the black and white wires from the fan motor being tested and follow them back to the terminal block. 3.
III. Troubleshooting Chart This Troubleshooting Chart is not prepared to replace the training required for a professional refrigeration service person, not is it comprehensive. Complaint 1. Unit not running a. b. c. d. e. f. Table 3-1 Troubleshooting Chart Possible Causes Response Power cord unplugged No power to unit. Incorrect Temperature setting Low voltage Incorrect or loose wirings Failed components. a. b. c. d. e. f.
g. Low voltage. h. Operating 60 Hz unit at 50Hz i. Sealed system problem j. Undercharge or overcharge installation g. Check power supply h. Use proper 60 Hz i. Check for loss of refrigerant restrictions j. Add or remove refrigerant or 7. House circuit tripping a. Incorrect fuse or breaker b. Incorrect wirings c. Malfunctioning components a. Check for proper fuse or breaker b. Check wirings and connections c. Check failed components 8. Noisy operation a. Mounting area not firm b. Loose parts c.
4. Installation and Operation I. Installation Instructions Select a place to mount the unit where the exhaust airflow is unobstructed for a minimum of 6 inch. The area into which the unit exhausts must be well ventilated. If it is not, heat exhausted by the unit will build up and the unit will not operate properly. Additionally, cold air from the front opening must remain unobstructed. The unit should be mounted near the ceiling and as close to equal distance from each end of the wall as possible.
FRONT VIEW REAR VIEW Figure 4-2 Make an opening in the wine cellar wall as illustrated in Fig. 4-1. The dimensions of the opening should be ¼ inch larger than the width and height of the unit. Construct a shelf as shown in Fig.4-1. The shelf must be capable of supporting the weight of the unit. Place the unit on the shelf with the back of unit flush with the outside of the wall. Attach the grille to the outside wall with screws. Seal the inside with a high quality weather stripping and cover with molding.
°F and 55% RH. Products requiring these storage conditions include wine, furs, pastries, tobacco, chocolates and documents. WINEMATE cooling units are not intended to cool service cabinets that are maintained at lower temperatures and are opened frequently. Table 4-1 Specification under 75 °F, 55%RH Model Capacity Dimensions (WxHxD") Electrical Weight (lb) 3000 bottles 14.25x19.75x21.25 115V 60Hz 6A 75 4500hzd Up to 1000 cu ft 4500 bottles 14.25x19.75x21.
5. Customer Support If you still have problems, please contact us at: Vinotemp International 17631 South Susana Road Rancho Dominguez, CA 90221 Tel: (310) 886-3332 Fax: (310) 886-3310 Email: info@vinotemp.
6. Warranty I. Limited Warranty VINOTEMP warrants its products to be free from defects due to workmanship or materials under normal use and service, for twelve months after the initial sale. If the product is defective due to workmanship or materials, is removed within twelve months of the initial sale and is returned to VINOTEMP, in the original shipping carton, shipping prepaid, VINOTEMP will at its option, repair or replace the product free of charge.
VINOTEMP’S SOLE LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED TO, AT OUR OPTION, REPAIRING OR REPLACING OF UNIT. VINOTEMP SHALL NOT BE LIABLE FOR: DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE UNIT, DAMAGES BASED UPON INCONVENIENCE, LOSS OF USE OF THE UNIT, LOSS OF TIME OR COMMERCIAL LOSS, ANY OUTER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.
