Instruction Manual
33
Filter Maintenance Instructions
A. FILTER MAINTENANCE INSTRUCTIONS
1. The following simple maintenance procedures will
ensure maximum FLO-DRI ltering efciency and a
longer lter life.
2. FLO-DRI cartridges should be examined frequently
until a pattern of usage is established.
3. Failure to replace cartridges in an expedient fashion
may result in excessive pressure drop and the
possibility of contaminant carry over. Refer to the
FLO-DRI Cartridge Change-Out Calculator available
on Thermon’s website for recommended change out
schedules. This calculator allows the user to determine
an accurate cartridge replacement schedule based
on their specic application. If the calculator is
unavailable, replace cartridges every 30 days or when
the cartridge appears to be contaminated.
4. Do not subject the unit to vapours or liquids from
synthetic solvents, acetone, methanol, esters, lacquer
thinners, phosphates, etc.
B. TO CHANGE FLO-DRI CARTRIDGES
1. Close inlet, wait for unit to vent, then close the outlet
isolation valve to the FLO-DRI lter.
2. To vent lter, open drain cock. Make certain lter is
COMPLETELY VENTED and under NO pressure prior to
removing the top end cap.
3. To remove the end cap: depress, turn counter
clockwise and pull out. DO NOT LOOSEN CASTLE
NUTS.
4. Inspect lter media. Replace when completely
saturated, or earlier.
5. Insert new FLO-DRI cartridge (sewn end down) into
the lter unit.
6. Replace end cap, close drain cock and open isolation
valves before returning FLO-DRI unit to service.
WARNING
WARNING. Never replace lter cartridge when the
unit is under pressure. Always follow safe work
procedures when working with high pressure.
WARNING
WARNING. Do not reused contaminated media.
WARNING
WARNING. If is essential to positively conrm close
of top cap prior to re-pressurizing system.