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Section V Maintenance
Service Contracts
Thermo offers on-site Service Contracts that are designed to provide extended
life and minimal down-time for your unit. For more information, contact our
Service Department (see Preface, After-sale Support).
Deionizing Cartridge
When the resistivity drops below the low setpoint for more than one hour the
REPLACE CARTRIDGE LED illuminates. This indicates replacement is
necessary.
Open the resistivity strap on the cartridge. Click open the quick disconnects
on the top and bottom of the cartridge and pull the cartridge from the unit.
Remove the hoses from both ends of the cartridge and then replace the
cartridge.
When reinstalling, ensure the flow arrow on the cartridge is pointing
up.
To avoid crimping damage, keep tubing clear of the door area.
Remove the reservoir to observe pure fluid flow. On the front side of the tank,
the center return line is purified fluid, the large return line is for auto refill, and
the other small return line is a pump protection bypass line.
Cleaning
Clean the strainer when the pressure decreases. Ensure the O-ring is seated
properly.
Clean the flow transducers every 12 - 18 months.
