Finish Thompson LS-55IIE - Manual (Page 8)

7
CONDENSER COOLING WATER REQUIREMENTS:
WARNING:
Improper cooling water supply can result in the accumulation of hazardous vapors (refer to Safety
Precautions for ventilation information).
CAUTION:
Do not allow the cooling water supply to freeze. Damage to components can occur. Do not exceed 85 psi
inlet water pressure.
 Cooling water can be supplied via “tap water” or from a closed-loop cooling system (e.g., a Little Cooler or
cooling tower).
 Cooling water supply and return connections are ½” NPT female pipe and are located on the rear of the Still and
JetVac.
 Minimum cooling water flow required for the condenser is ½ gallon per minute for the LS-15E/15IIE,
 and 1½ gallons per minute for the LS-55E/55IIE. Minimum requirements increase by a ½ gallon a minute when
using any still in conjunction with a JetVac.
 Cooling water temperature must be less than 80° F or 50° F below the lowest boiling point of the solvent being
processed—whichever is lower (determine solvent boiling point under vacuum, if applicable).
 If using a “hard” water supply, treatment is required to prevent mineral deposit or scale accumulation within the
vapor condensers and cooling coils of the cooling system. If water contains particulate, install an appropriate
filter before the Still.
IMPORTANT: Follow these guidelines when using a Little Cooler closed-loop cooling system. Refer to the Little
Cooler Instruction Manual for further information.
 The Little Cooler is designed only for condenser cooling. Do not attach it to the quick-cool coil (use tap water
for the quick-cool).
 Depending on the physical distance, height, and type of plumbing used between the Still and the Little Cooler, it
may be necessary to bypass the condenser water solenoid valve. Simply remove the hose from the inlet of the
solenoid valve and connect it to the water inlet of the condenser (lower connection on the condenser).
 There will be a slight delay before the Still will turn on when using a Little Cooler (until the cooling water begins
to circulate).