Finish Thompson LS-JRE - Manual (Page 4)

PLUMBING CONNECTIONS
WARNING: WATER FLOW MUST BE VERIFIED BEFORE OPERATION TO PREVENT ACCUMULATION OF DANGEROUS VAPORS.
A continuous cooling water supply is required to condense the solvent vapors back into liquid form. This water can be from the tap
or from a closed-loop recirculating system (such as the FTI “Little Cooler”). Water flow requirements are 1/8 to 1/4 gallons per min-
ute at a temperature no higher than 80°F. If your solvent’s boiling point is lower than 150°F, colder water may be required. Check
the solvent’s MSDS, or consult the factory if unsure.
Connections for the water supply are located on the back of the LS-Jr lid. As you are facing the rear of the unit, the left hose (with
female quick-connect) is marked water inlet. The right hose (with male quick-connect) is marked water outlet. Use the supplied
quick-connects and your flexible hose (e.g., a garden hose 1/4 inch ID or larger) and hose clamps to bring the water supply to the
LS-Jr and back out to a drain. Regulate the water supply with valves to control on/off and flow rate. If a closed-loop recirculating
system is used instead of tap water, consult that system’s instructions for its specific plumbing details.
OPERATING THE LS-JR.
The LS-Jr requires minimal operator involvement. Once set up and started, the unit can operate virtually unattended until the pro-
cess is complete.
NOTE: Only process neutral solvents with a pH between 6 and 9. Solvents outside of this safe pH range can cause damage to your
LS-Jr that is not covered under its warranty. Some solvents can become acidic once heated. It’s a good idea to periodically test
both the dirty solvent as well as the distillate to verify a safe pH. If your pH is not in the “safe zone”, it must be neutralized. Consult
your solvent supplier for recommendations.
The following steps serve as guidelines for safe operation of the LS-Jr.:
1. Install a Stilgasket (lid gasket material) for each batch of solvent processed. A Stilgasket is a special solvent-resistant material
used to provide a seal between the LS-Jr’s lid and its boiling chamber.
• To install a Stilgasket:
• Start by making a clean, 45° angled cut on the end of the Stilgasket.
• Begin to peel away the backing from the adhesive side of the gasket.
• Firmly position the Stilgasket into the gasket groove on the top lip of the boiling chamber.
• Continue to position the Stilgasket around the perimeter of the boiling vessel, peeling away short sections of the adhesive’s
backing as you go.
• Carefully trim the excess from the end of the Stilgasket to tightly match the angle of the starting point
NOTE: DO NOT USE A STILGASKET FOR MORE THAN ONE BATCH.
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