5-12 l Maintenance
Cleaning the Precooler Coils
You need to clean the precooler coils to keep them working efficiently. Cleaning frequency
depends on the type and amount of material you process.
1 Stop the dryer and lockout the main power.
2 Turn off the water flow to the water supply and return lines. Disconnect
supply and return lines.
3 Remove the bolts securing the precooler cover. Remove the cover.
4 Remove the precooler by pulling it out of the precooler housing.
5 Clean the assembly using a mild soap and water. Let the assembly dry thoroughly
before installation.
NOTE: In cases of heavy volatiles, steam cleaning, pressure washing or the use of solvents, such
as acetone, may be necessary. Be sure to test a small area with the solvent you have selected to
be sure there is no adverse reaction.
6 Inspect the condition of the gasket. If it is damaged, replace the gasket.
7 Reassemble by repeating the steps in reverse order.
8 Connect the water supply line and return line.
9 Open the valve to return water to the system.
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