7
2.4 Operating liquid should be tap water with a pH of 6 to 9, free of solids in the
approximate quantity shown in table 2-2. Do not use de-ionized or distilled
water, tap water is best.
Table 2-2 Operating Liquid Sump Capacity
Airtech Model Number Water Capacity
US gal/liters
3AL2041 4.0/15.1
3AL2061 5.5/20.8
3AL2101 5.5/20.8
3AL2241 16.3/61.7
3AL2251 16.3/61.7
3AL2281 16.3/61.7
3AL2341 16.3/61.7
3AL2430 16.3/61.7
2.4.1 Care must be taken to ensure that the operating liquid is not exposed to
freezing conditions during periods of inactivity. Addition of up to 30 percent
ethylene or propylene glycol by volume is acceptable and will protect from
freezing at temperatures as low as 0 F.
3.0 Prohibited uses
3.1 The 3AL should not be used in an environment where explosive gases may
exist in the environment. Special modifications of the system may allow
operation in these environments, but the standard design is not intended for this
purpose and should not be used.
3.2 Do not use the 3AL on process gas environments, which would result in
significant build up of corrosive chemicals in the system. Special material
versions should be selected for these types of applications.
3.3 Do not use the 3AL on lethal gases. The 3AL is not gas tight and is not
intended for these applications.
3.4 Do not operate the 3AL out of its design range.
3.5 Do not operate the 3AL to extract or compress chemicals unless it has been
specifically designed for this purpose. Contact Airtech, Inc. for assistance if you
are unsure of its applicability to your specific application.
3.6 Maintenance or repair work outside the scope of this manual should only be
preformed under the direction of an Airtech authorized service center.
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