Vinotemp WM250-850SCU Benutzerhandbuch

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• The WM25-85SFCD evaporator units shall be installed for ceiling mount

with air supply on both sides and air return on the bottom.

• 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.

• If equipped with a TXV, the evaporator superheat is set around 8-10

F for

a 10

F TD system at factory.

• If equipped with an AXV, the valve is set around 38-40

F at factory and

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 psig at 75

F ambient temperature and 150 psig

at 90

F ambient temperature

The line sizes and refrigerant charges are listed as follows.

MODEL

REFRIGERATION

LINES

LIQUID

LINE

SUCTION

LINE

DRAIN

LINE

CHARGE

VINO-

2500SSD

< 50 FT

1/4"

3/8” OD

1/2” OD

R134a/

20 OZ

VINO-

4500SSD

< 50 FT

1/4"

1/2” OD

R134a/

26 OZ

VINO-

6500SSD

< 50 FT

1/4"

5/8” OD

1/2” OD

R134a/

32 OZ

VINO-

8500SSD

< 50 FT

3/8"

5/8” OD

1/2” OD

R134a/

38 OZ