Instruction Manual

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Little Cooler

Instruction Manual

Introduction.......................................2

Safety Precautions.............................2

Choosing a Location.........................3

Plumbing Connections......................4

Electrical Connections......................6

Start-up and Operation......................

Maintenance Schedule..................... 9

Troubleshooting............................... 9

Common Spare Parts..................... 10

ervicing the Pump ……………… 1

Electrical Schematic.........................13

Specifications...................................13

Warranty...........................................13

Version 2.4

April 2003

(Standard, 1 Phase Version)

Summary of content (13 pages)

PAGE 1
ING L C Y EC R T N E SOLV SYSTEM Introduction.......................................2 Little Cooler Safety Precautions.............................2 Instruction Manual Choosing a Location.........................3 (Standard, 1 Phase Version) Plumbing Connections......................4 Electrical Connections......................6 Start-up and Operation......................8 Maintenance Schedule..................... 9 Troubleshooting............................... 9 Common Spare Parts.................
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INTRODUCTION The Little Cooler is a closed-loop cooling system designed to work with an FTI distillation system. Use of the Little Cooler can save money and conserve the environment by eliminating the continuous use of a clean water supply. Further, this air-cooled system uses no ozonedepleting gasses to perform its job. Quality engineered and manufactured, the Little Cooler requires minimal operator involvement and maintenance and can provide years of trouble-free service.
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CHOOSING A LOCATION Follow these requirements to determine a suitable installation location for the Little Cooler:  Install outside of any hazardous areas.  The horizontal distance (from the equipment being cooled) must be less than 50 feet.  The vertical rise (to or from equipment being cooled) must be less than 12 feet.  Ambient air temperature around the unit must not exceed 100F.  Install the unit on a flat, level surface.
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PLUMBING CONNECTIONS General plumbing instructions:  Use a minimum of 5/8-inch (inside diameter) high temperature flexible hose or 1/2 inch piping to and from the Little Cooler for coolant circulation.  Use sweep elbows or large radius bends to reduce frictional losses in the piping. Length of coolant lines must not exceed 50 feet.  The WATER OUTLET of the Little Cooler plumbs to the condenser or WATER INLET of the distillation unit.
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Special plumbing requirements for LS-15IIE/LS-55IIE models: NOTE: When installing the Little Cooler to models LS-15IIE or LS-55IIE, the water solenoid valve in the Still may need to be bypassed. This item significantly reduces the coolant flow capabilities, thereby hindering the performance of the Little Cooler. Never bypass the safety flow switch in your LS distillation unit.
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ELECTRICAL CONNECTIONS General electrical instructions:  The Little Cooler requires a switched 230-volt, 1 phase, 60 Hz, 20 amp electrical service with separate ground and circuit breaker.  A qualified electrician should perform all electrical wiring.  When installing outdoors, use only weather-tight electrical components.  Run the electrical supply from your circuit breaker to your switch, then to the Little Cooler.  Bring your 3-wire supply to the inside of the Little Cooler’s junction box.
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Electrical Connections for Models LS-15IIE and LS-55IIE: The design of the LS-15IIE and LS-55IIE solvent distillation systems provides automatic termination of its cycle by time. Following the procedure below will allow a System II “E” to control the Little Cooler for automatic start/stop control. In addition, a timer in the LS unit will allow the Little Cooler to run for one hour after cycle termination to condense any vapors remaining in the LS unit’s boiling chamber.
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START-UP AND OPERATION Filling the system: NOTE: Use only distilled or treated water in the coolant mixture to prevent scale build-up in the cooling system and piping NOTE: Do not overfill or under fill the reservoir. Running the Little Cooler with improper coolant levels will damage the pumping system and void the warranty. 1. Remove the access panel on top of the Little Cooler. 2. Find and remove the plastic plug inserted into the reservoir cover to reveal the fill hole. 3.
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MAINTENANCE SCHEDULE CAUTION: ALWAYS WEAR EAR PROTECTION, SAFETY GOGGLES, PROTECTIVE CLOTHING, AND GLOVES WHEN WORKING ON OR WITH THIS UNIT. Each use:  CHECK LIQUID LEVEL - Verify that the coolant in the reservoir tank is filled to the proper level. If low, top off with a 50/50 mix of automotive (long-life, low silicate) antifreeze and distilled water until liquid is visible in the sight glass.
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PROBLEM: Unit will not turn on POSSIBLE CAUSES:  Improper electrical hook-up. Verify proper installation of electrical supply.  No power to the unit. Check main circuit breaker and/or electrical supply to the unit. PROBLEM: Fan runs, but not the pump. POSSIBLE CAUSES: NOTE: If the liquid temperature from the radiator exceeds 150F, a safety temperature switch will shut down the pump of the Little Cooler. The fan will continue to run to assist cooling the liquid.
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Pump and motor disassembly: 1. Set the pump and motor assembly onto the motor fan cover so that the pump is facing upright on the workbench. 2. Remove the five socket-head bolts that hold on the pump’s housing and remove the pump housing. The nuts for the bolts are recessed into the tabs of the motor adapter. Also remove the housing o-ring. IMPORTANT: Take note of the orientation of the pump’s discharge (where the elbow is attached) to allow proper reassembly after repairs. 3.
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PUMP HOUSING IMPELLER HOUSING COVER SEAL SET SCREWS MOTOR ADAPTOR MOTOR MOUNTING PLATE MOTOR .020" +/-.
PAGE 13
ELECTRICAL SCHEMATIC: OVER-TEMP THERMOSTAT OPENS @ 150º F. CLOSES @ 100º F. CUSTOMER-SUPPLIED WIRING FROM MAIN OR CUSTOMER-SUPPLIED CONTACTOR L2 TAS1 P1 PUMP MOTOR L1 1 MTR G JUNCTION BOX T5 P2 T2 T8 T4 TAPE L2 TO BOX (RED) L1 TO O-T THERMOSTAT 2 MTR FAN MOTOR T3 TO BOX (BLACK) DETAIL OF PUMP MOTOR (CCW ROTATION) SPECIFICATIONS: Model: PLSC001 “Little Cooler” Dimensions: 22” wide x 31” deep x 22” tall Shipping wt: 180 lb. Electrical requirements: 230 volts / 1 Ph / 60 Hz / 5.