Vinotemp VINO-4500SSR Refrigerator User Manual


 
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2. Evaporator Unit
The WM25-45SFCR evaporator units shall be installed for rack mount with
the air supply from the left front, top or side and air return on the right
front, top or side.
Supply and return air flow from the evaporator unit shall be unobstructed
for at least 1 foot.
There is a gravity drain line so that it can not be installed above the
evaporator unit. Otherwise a condensation pump must be used.
3. Air Sensor
The air sensor can be located in the wine room or the return air area, but
not the supply air area.
4. Refrigeration Piping and Charging
NOTES: ALWAYS USE THE SUPERHEAT AND SUBCOOLING,
PRESSURE READINGS TO CHARGE REFRIGERANT PROPERLY, THE
LISTED CHARGES ARE FOR REFERENCE ONLY.
The installation order starts from condensing unit (including the receiver),
liquid line filter-drier, moisture-liquid indicator (sight glass), liquid line,
evaporator unit (including liquid line solenoid valve and thermostatic
expansion valve or automatic expansion valve), suction line, and returning
to condensing unit.
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
The line sizes and refrigerant charges are listed as follows.
MODEL
REFRIGERATION
LINES
LIQUID
LINE
SUCTION
LINE
DRAIN
LINE
CHARGE
VINO-
2500SSR
< 50 FT
1/4"
OD
3/8” OD 1/2” OD
R134a/
20 OZ
VINO-
4500SSR
< 50 FT
1/4"
OD
1/2” OD 1/2” OD
R134a/
26 OZ
VINO-
6500SSR
< 50 FT
1/4"
OD
5/8” OD 1/2” OD
R134a/
32 OZ