Vinotemp WINE-MATE VINO8500SSH - Manual (Page 3)

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Back Position: Process and manometer port closed for normal operation
Front Position: Connection to liquid or suction line closed
Middle Position: All ports open for evacuation, charge and manometer reading
3. Evaporator Unit
• The WM25-85SFCH evaporator units can be installed outside a wine
room.
• Supply and return air flow from the evaporator unit shall be unobstructed
for at least 1 foot.
• There is a gravity drain line and the unit shall be installed level or with a
slight angle toward the drain connection. If rise-up is needed, a
condensation pump must be used.
4. Air Sensor
• The air sensor is recommended to place in the wine room 5 ft above the
floor but not air dead area.
• If it is in a return duct, the evaporator fans shall be running all the time.
Due to the temperature differential the temperature setting needs to be
adjusted in order to maintain the proper wine room temperature.
• If the temperature controller is mounted away from the air sensor, use 18
gauge wires to extend the air sensor if needed.
5. Refrigeration Piping, Evacuating, Charging and Starting
CAUTION:
• ALWAYS USE THE SUPERHEAT AND SUBCOOLING, PRESSURE
READINGS TO CHARGE REFRIGERANT PROPERLY, THE LISTED
CHARGES ARE FOR REFERENCE ONLY.
• CHARGE 15% MORE REFRIGERANT IN THE SUMMER IF THE UNIT IS
EQUIPPED WITH A LOW AMBIENT CONDITION KIT.
• The installation order starts from condensing unit (including the receiver,
discharge valve), liquid line filter-drier, moisture-liquid indicator/sight glass,
liquid line, to evaporator unit (including liquid line connection, solenoid
valve, expansion valve, and suction line connection), returning to insulated
suction line, suction valve and then condensing unit.
• Use inverted siphons to prevent liquid from flooding back to the
compressor and aid oil returning to the compressor.
• Charge the system after pipe brazing, leak testing and evacuating.
• 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.