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10.2.1 Add a small amount of ethylene glycol to the inlet of the pump (see
Section 4.3 of this manual).
10.2.2 Ensure the system is stored in a clean, dry location and is not exposed to
extremes of temperature or weather.
10.3 To re-commission after a long storage period, add the following to the
standard commissioning procedures outlined in Sections 6 and 7 of this manual.
10.3.1 Measure the insulation resistance of the motor (<1kOhm per volt of
nominal voltage, dry winding).
10.3.2 Remove the anti-corrosion agent from the pump by draining it from the
pump casing. Ensure proper disposal of the anti-corrosion agent.
10.3.3 Clean the system by adding water to the operating liquid sump and
priming the pump as described in Section 6.9.
10.3.3.1 Briefly run the system.
10.3.3.2 Shut the system off and drain the system operating water from the
sump.
10.3.3.3 Repeat this procedure until the system is free of debris or foreign matter.
11.0 Servicing
11.1 Do not attempt to service the system without consulting Airtech, Inc. for
assistance. Normally, no service is required and the need for service may
indicate a process problem that must be addressed prior to re-commissioning.
12.0 Maintenance
12.1 If hard water is used to operate the system, then the water should be
softened or the entire unit must be de-calcified at regular intervals. Use the anti-
liming agent recommended in Section 4.2 of this manual.
12.2 Periodically check the hoses and fittings for leaks. If leaks are found, de-
energize the system and tighten or replace the leaking fittings.
12.3 If dirt or other foreign matter enters the system, it must be cleaned regularly
according to the procedure outlined in Section 10.3.3.
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