Vinotemp VINO4500DS, VINO6500DS, VINO8500DS manual Service Guide, Refrigeration Piping and Charge

Page 14

Service Guide

1. Refrigeration Piping and Charge

•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 sight glass.

•The evaporator’s constant pressure expansion valve is set around 38- 40°F at factory. This pressure setting gives a dew point to maintain the humidity for storing wine.

•The superheat at the evaporator unit shall be around 9-18°F under low and high load at 75°F ambient temperature.

•Low side pressure: 33 psig

•High side pressure: 130 -150 psig at 75 -90 °F ambient temperatures

MODEL

LIQUID

SUCTION

DUCT

DRAIN

CHARGE

LINE

LINE

LINE

 

 

 

VINO-4500DS

1/4" OD

1/2” OD

8

7/8” OD

R134a/

26 OZ

 

 

 

 

 

VINO-6500DS

1/4" OD

5/8” OD

10

7/8” OD

R134a/

32 OZ

 

 

 

 

 

VINO-8500DS

3/8" OD

5/8” OD

10

7/8” OD

R134a/

38 OZ

 

 

 

 

 

2. Pressure, Superheat and Subcooling Readings

NOTES: THE VALVES MUST BE IN THE MIDDLE POSITIONS TO READ PROPERLY.

 

Complaint

 

 

Possible Causes

 

a.

High suction pressure and low head pressure

a.

Compressor may be bad

 

b.

High suction pressure and low head pressure

b.

Expansion

valve opened, too

 

Low superheat and low subcooling

 

much oil

 

 

 

 

c.

High suction pressure and high head pressure

c.

Overcharge

 

 

 

 

 

Low superheat and high subcooling

d.

Non-condensable gas

 

d.

High to normal suction pressure and high head pressure

 

 

Low subcooling

e.

Air

restricted,

dirty

condenser,

e.

High suction pressure and high head pressure

 

Low subcooling

 

bad condenser fans

 

 

f.

High suction pressure and high head pressure

f.

High

room

temperature,

high

 

High superheat

 

evaporator load

 

 

 

g.

Low suction pressure and low head pressure

g.

Undercharge

 

 

 

 

High superheat and low subcooling

h.

Liquid

line

restricted

after

h.

Low suction pressure and low to normal head pressure

 

High superheat and high subcooling

 

receiver,

solenoid

valve

 

 

 

restricted

 

 

 

 

i.

Low suction pressure and low head pressure

i.

Suction line restricted

 

 

Low subcooling

j.

Air

restricted

at

evaporator,

j.

Low suction pressure and low head pressure

 

Low superheat and low subcooling

 

evaporator iced

 

 

 

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Contents WINE-MATEDucted System Installation, Operation & Care Manual Read and Save These Instructions Important Safety Information Feature Description VINO4500-8500DS FeaturesVINO4500- 8500DS Dimensions Cellar Construction Installer’s Instruction DS System InstallationAir Sensor Customer WiringLocation Evaporator Unit Air FlowTemperature Control & Humidity Adjustment Temperature SettingDip-switch description See detail in Vstat instruction Use of the Digital Controller Page Manual Defrost Pressure, Superheat and Subcooling Readings Service GuideRefrigeration Piping and Charge Valve Operation VINO4500DS Electrical Wiring Diagram Vtstat VINO4500DS Electrical Wiring Diagram Digital ControllerVINO6500DS Electrical Wiring Diagram Vtstat VINO8500DS Electrical Wiring Diagram VTSTAT, UJ6220Z Use of the adjustable low pressure control if applicable Moisture Removing Coil CleaningCare Guide User’s Troubleshooting Evaporator Unit runningToo long or IcingCustomer Support Service under Warranty WarrantyLimited Warranty Limitation of Implied Warranty

VINO4500DS, VINO8500DS, VINO6500DS specifications

Vinotemp has established itself as a leading brand in the wine cooling and preservation industry, and its VINO series – specifically the VINO6500DS, VINO8500DS, and VINO4500DS – exemplifies this reputation. Each model brings a unique set of features, technologies, and characteristics tailored to wine enthusiasts and collectors.

Starting with the VINO6500DS, this dual-zone wine cooler is designed to accommodate approximately 6,500 bottles. Its dual-zone temperature control allows users to store red and white wines at their optimal temperatures, promoting ideal aging and preservation. The VINO6500DS features an elegant stainless steel construction with a glass door, providing a sleek look while offering UV protection against harmful light rays. The model comes equipped with digital temperature controls and an LED display for easy monitoring. Additionally, its adjustable wooden shelves enhance air circulation and provide a classic touch.

Next in the lineup is the VINO8500DS, which offers an impressive capacity of around 8,500 bottles, making it perfect for serious wine collectors or commercial use. Like the VINO6500DS, this unit also features dual-zone technology, ensuring that diverse wine varieties can be stored under optimal conditions. The VINO8500DS incorporates advanced thermoelectric cooling technology, minimizing vibration which can be detrimental to wine. The unit features a stylish design with a full glass door to showcase the collection while safeguarding it from UV exposure. With a user-friendly control panel, adjusting the internal climate is simple and hassle-free.

Lastly, the VINO4500DS, with a capacity of about 4,500 bottles, strikes an ideal balance between size and functionality, making it suitable for both personal use and small commercial settings. This model also features dual-zone temperature settings, ensuring wines are stored at ideal temperatures. The VINO4500DS is built with robust construction and includes a digital interface for precise temperature adjustments. The internal LED lighting not only illuminates the collection but also adds an element of sophistication.

All three models prioritize energy efficiency, ensuring wine collectors can maintain their collections without significant electricity costs. With features like temperature alarms, adjustable shelving, and advanced cooling systems, the VINO series from Vinotemp remains a favorite among wine aficionados, combining elegance, functionality, and technology to create the perfect wine storage solution.
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