Vinotemp WINE-MATE 250SCU User's Manual
Contents
1. Front Position Main connection to liquid or suction line closed Middle Position All ports open for vacuum charge and measurement 7 Electrical Wiring EVAPORATOR UNIT BLUE LIBUID LINE ss i ie REEN OUND HELLE WHITE H F BLACK BLACK WE ILACE k FOWER LINE CAPACITOR SPEED ORANGE CONTROL BROWH DIGITAL CONTROLLER SAFETY LOW PRESSURE WITCH TEMPERATURE PROBE i Li TERMINAL COMFFE2 7OR amp Feb CONDENSING UNIT BLACE Fig 2 2 VINO1500 2500SSW Wiring Diagram DIGITAL CONTROLLER 8 Use of the adjustable low pressure control if applicable Cut out 5 psig Cut in 25 psig Differential 20 psig It may need to adjust the setting in the field to get the right cycle time Step 1 Set high event by adjusting range screw All Range Controls Turn screw clockwise to raise high event MICRO SET Controls Turn screw clockwise to lower CUT IN setpoint High Event Pointer AlERange Controls Fa CUT IN Pointer MICRO SET Controls Diferential Screw a _ Manual Reset Button Manual Reset Lockout option not available on all models ra Low Event Pointer AlIFRange Controls fo DIFFERENTIAL Pointer MICRO SET Controls d Bellows Step 2 Adjust the differential screw All Range Controls Turning the differential screw changes the low event Turn screw clockwise to lower Low Event MICRO SET Controls Turning the differential screw changes the differential setting Turn screw clockwise to in2. low head pressure High superheat and low subcooling Low suction pressure and low to normal head pressure High superheat and high subcooling Low suction pressure and low head pressure Low subcooling Low suction pressure and low head pressure Low superheat and low subcooling Low suction pressure and low to normal head pressure High superheat and normal to high subcooling Low suction pressure and normal head pressure High superheat and normal subcooling Low suction pressure and high head pressure High superheat and high subcooling Low suction pressure and high head pressure High superheat and high subcooling low to normal suction pressure and high head pressure High to normal superheat and high subcooling 6 Valve Operation 4 ki SPINDLE BACK POSITION SPINDLE FRONT POSITION SPINDLE MIDDLE POSITION Fig 2 1 Valve Operation om l Compressor may be bad Expansion valve opened too much oil Overcharge Non condensable gas Air restricted dirty condenser bad condenser fans High room temperature high evaporator load Undercharge Liquid line restricted after receiver solenoid valve restricted Suction line restricted Air restricted at evaporator evaporator iced Evaporator restricted Expansion valve restricted Both evaporator and condenser restricted Liquid line restricted before receiver Condenser restricted 4 Back Position Process and manometer port closed for normal operation
3. VINO 1500SSW VINO 2500SSW Installer s Instruction A WARNING Always check wiring harness connections before initiating any test proce dures Disconnect electric power from the appliance before performing any main tenance or repairs Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connec tor block plugged in Resistance checks should be made on components with the electric power off and the connector block disconnected Federal law requires that WINE MATE split cooling systems be installed by an EPA certified refrigeration technician WINE MATE split system is shipped as components and is ready for use only after a certified refrigeration technician has properly installed charged and tested the system Proper installation is critical Vinotemp can only warrant the quality of the components The installation and proper operation of the system must be warranted by the installer Installation of the system must be done in accordance with all state and local building codes 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 the two units After the units and the lines are installed the system must be pressure tested If no leaks are found evacuate and charge system with R134A Refrigerant amount w
4. crease DIFFERENTIAL Fig 2 3 Adjustable Pressure Control Cover Screw 9 Condensing Unit Troubleshooting Incorrect power supply Check for proper voltage Incorrect or loose wirings Check all wirings and connections Failed components Check start relay start capacitor overload protector compressor Liquid refrigerant in the compressor Call service for OEM information Low pressure switch shutting down the system Check for system restriction or refrigerant low
5. ill vary depending on the length of line set 1 Condensing Unit e Place the condensing units WM 150SCU and 250SCU in a properly ventilated location If it is not heat exhausted by the condensing unit will build up and the cooling system will not operate properly e Leave minimum 5 feet clearance for the exhaust side and leave minimum 1 foot clearance for the fresh air intake side e Condensing unit shall be elevated to avoid possible flooding and shaded from direct sun It shall not be exposed to temperatures higher than 110 F or lower than 45 F optional low ambient kit for 20 F 2 Evaporator Unit e The WM 15SFCW and 25SFCW evaporator units shall be installed for wall mount with the air supply on the top and air return on the bottom e Supply and return air flow from the evaporator unit shall be unobstructed for at least 1 foot e 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 e he 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 e The installation order starts from condensing unit including the receiver liquid line filter drier moisture liquid indicator sight glass liquid line evaporator
6. unit including liquid line solenoid valve and thermostatic expansion valve or automatic expansion valve suction line and returning to condensing unit e 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 e The evaporators 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 e The superheat at the evaporator unit shall be around 9 18 F under low and high load at 75 F ambient temperature e Low side pressure around 33 psig e High side pressure 130 150 psig at 75 90 F ambient temperatures The line sizes and refrigerant charges are listed as follows REFRIGERATION LIQUID SUCTION DRAIN MODEL LINES LINE LINE LINE CHARGE VINO 1 4 R13da EROA lt 50 FT 3 8 OD 1 2 OD ieee VINO 2500SSW 5 Pressure Superheat and Subcooling Readings NOTES THE VALVES MUST BE IN THE MIDDLE POSITIONS TO READ PROPERLY High suction pressure and low head pressure High suction pressure and low head pressure Low superheat and low subcooling High suction pressure and high head pressure Low superheat and high subcooling High to normal suction pressure and high head pressure Low subcooling High suction pressure and high head pressure Low subcooling High suction pressure and high head pressure High superheat Low suction pressure and
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