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8)  If the superheat is high, check the subcooling first to know if the refrigerant 

charge is sufficient. If the charge is not sufficient, add more refrigerant. If the 
charge is good, then increase the evaporator suction pressure by turning the 
hex nut (5/16”) clockwise. Liquid must always be charged into the hide side 
when the compressor runs. 

9)  If the superheat is low, then decrease the evaporator suction pressure by 

turning the hex nut (5/16”) counter-clockwise. 

10) 

Both discharge and suction valves must be in the back positions before 
disconnecting. 

11) Close all service valves and disconnect all manifolds and hoses. 
 

 

Fig. 13 Expansion Valve 

 

10. Pressure, Superheat and Subcooling Readings 

 

CAUTION:  
To read properly the service valves must be in the middle positions. 
 

Complaint Possible 

Causes 

j. 

High suction pressure and low head pressure 

       Zero superheat and zero subcooling  
k.  High suction pressure and low head pressure 
       Low superheat and low subcooling 
l. 

High suction pressure and high head pressure 

       Low superheat and high subcooling 
m.  High to normal suction pressure and high head pressure 
       Low subcooling 
n.  High suction pressure and high head pressure 
       Low superheat and low subcooling 
o.  High suction pressure and high head pressure 
      High superheat  
p.  Low suction pressure and low head pressure 
      High superheat and low subcooling 
q.  Low suction pressure and low to normal head pressure 
      High superheat and high subcooling 
 
r.  Low suction pressure and low head pressure 
      Normal to high superheat and low subcooling 
s.  Low suction pressure and low head pressure 
      Low superheat and low subcooling 

j. 

Compressor may be bad 

 
k.  Expansion valve opened, too 

much oil 

l. Overcharge 
 
m. Non-condensable gas 
 
n.  Water restricted or bad water 

regulator, dirty condenser 

o.  High cellar temperature, high 

evaporator load 

p. Undercharge 
 
q. Liquid line restricted after 

receiver, solenoid valve 
restricted 

r.  Suction line restricted 
 
s. Air restricted at evaporator, 

evaporator iced 

Summary of Contents for Wine-Mate WM-2500SSVWC

Page 1: ...om m Rack Split Cooling System Installation Operation Care Manual WM 2500SSVWC WM 4500SSVWC WM 6500SSVWC w ww ww w v vi in no ot te em mp p c co om m R Re ea ad d a an nd d s sa av ve e t th he es se...

Page 2: ...1 Important Safety Information WARNING Do not use a ground fault interrupter GFI A dedicated 20 AMP circuit for WM 2500SSVWC and 30 AMP for WM 4500 6500SSVWC are required...

Page 3: ...le of Contents Cellar Construction 3 Features Specifications 4 Temperature Humidity 6 Care Guide 10 User Troubleshooting 11 Installer s Instructions 14 Electrical Wirings 24 Customer Support 26 Warran...

Page 4: ...erature surrounding the enclosure shall not exceed the temperature of the cellar by more than 25 F No cellar wall shall receive direct sun or strong wind Lighting shall be of low wattage with a timer...

Page 5: ...rator unit 50 ft so that noise and compressor vibration are isolated SSVWC condensing units are water cooled so that exhaust ventilation is not needed SSVWC evaporator units are designed for installat...

Page 6: ...Evap Unit Cond Unit WM 2500SSVWC WM 25SFCV WM 250SCU WC 24x18x18 2500 220 250 R134a 115V 60HZ 0 77A 115V 60HZ 5 7A 45 40 WM 4500SSVWC WM 45SFCV WM 450SCU WC 24x18x18 4500 335 1000 R134a 115V 60HZ 0 7...

Page 7: ...o lock unlock the keypad SET To enter in the programming mode SET To return to the temperature display 2 Lock and unlock the keys To lock the keys press up down keys until POF is displayed to unlock t...

Page 8: ...etting Set the temperature at 55 F for the optimum aging of wine On initial start up the time required to reach the desired temperature will vary depending on the quantity of bottles temperature setti...

Page 9: ...lar temperature is ALU higher or ALL lower than the set point Set 2 In order to test the call function set parameters Ald 0 and dAO 0 After testing set Ald 60 and dAO 23 9 How to set low cellar temper...

Page 10: ...elay min 1 ot probe calibration 0 US maximum set point 65 LS minimum set point 50 idF defrost cycle interval time hour 12 MdF defrost cycle endurance time min 30 ALC temperature alarm type rE relative...

Page 11: ...aning To clear any sediment that may accumulate the water regulating valve may be manually flushed Insert screwdrivers under both sides of the valve spring guide and lift upwards to flush 2 Condensate...

Page 12: ...temperature is mainly controlled by the average air temperature If the set point is 55 F with the differential 4F the cooling unit turns on at 59 F of air temperature It may be higher than 59 F if it...

Page 13: ...a Check compressor windings start relay and overload protector b Check water flow c Call service for removing refrigerant d Call service for information 9 Evaporator fan running too long a Post compre...

Page 14: ...ture setting 14 Circuit tripping a Incorrect fuse or breaker b Incorrect wirings c Failed components a Check for proper fuse or breaker b Check for wirings and connections c Call service 15 Noisy oper...

Page 15: ...s The condensing unit and evaporator unit are connected by a liquid line and an insulated suction line that are supplied by the installer These lines must be properly sized for the distance between th...

Page 16: ...15 CAUTION Liquid and suction line locations may differ from what are shown here please check on the units for proper installation Fig 3 WM 25 65SFCV Evaporator Unit...

Page 17: ...16 Fig 4 WM 250 850SCU WC Condensing Unit Fig 5 Liquid Filter Fig 6 Liquid Indicator...

Page 18: ...n pump must be used 3 Condensing Unit Installation 1 Condensing unit shall be elevated to avoid possible flooding and shaded from direct sun The location shall be adequately ventilated and shall not b...

Page 19: ...n Water in Connection Water out Connection Water Pressure Drop PSI WM 2500SSVWC WM 250SCU WC 0 2 3 8 FPT 1 2 ODF SOLDER 0 2 WM 4500SSVWC WM 450SCU WC 0 4 3 8 FPT 1 2 ODF SOLDER 0 2 WM 6500SSVWC WM 650...

Page 20: ...ondensing unit is installed above the evaporator unit use the suction line one listed size smaller Expansion and solenoid valves have been installed on the liquid line 1 The installation order starts...

Page 21: ...cuating Charging and Starting the system CAUTION Always use the superheat and subcooling pressure readings to charge refrigerant properly the listed charge amounts are used for reference only 1 Evacua...

Page 22: ...an Speed Control 3 The subcooling at the condensing unit shall be around 10 F The charge may be complete when there are no more bubbles forming in the liquid indicator 4 Head pressure is maintained co...

Page 23: ...k High suction pressure and low head pressure Low superheat and low subcooling l High suction pressure and high head pressure Low superheat and high subcooling m High to normal suction pressure and hi...

Page 24: ...cooling t Evaporator restricted u Expansion valve restricted v Both evaporator and condenser restricted liquid and suction lines connected wrong w Liquid line restricted before receiver x Condenser re...

Page 25: ...rical Wiring Diagrams CAUTION Hidden lines are the field wirings Use minimum 14 gauge wires for power lines A safety switch is always recommended for the condensing unit Fig 14 WM 2500 4500SSVWC Wirin...

Page 26: ...25 Fig 15 WM 6500SSVWC Electrical Wiring Diagram...

Page 27: ...6 Customer Support If you need further assistance 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 co...

Page 28: ...ties express or implied including any of fitness for a particular purpose In no event shall VINOTEMP be responsible for any consequential damages what is so ever Any modification of VINOTEMP products...

Page 29: ...USE OF THE UNIT LOSS OF TIME OR COMMERCIAL LOSS ANY OUTER DAMAGES WHETHER INCIDENTAL CONSEQUENTIAL OR OTHERWISE THIS WARRANTY IS EXCLUSIBE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR INPLIED...

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