Schmidt ACS 1200 Operation And Maintenance Manual Download

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5.8 Separator

Tank

After the compressed air leaves the aftercooler, it enters the separator tank (#12). The separator
tank allows the compressed air to expand causing moisture condensation. The air enters the tank at
a low elevation through a tangential inlet. The cyclonic movement causes the water droplets in the
air to drop to the bottom of the tank. As the air flow rises through the tank it passes through a
stainless-steel particulate filter (ACS systems) or a bed of marbles (#10) then into the
deliquescent/desiccant tablets (#9) (ADS Systems). The absorbed/adsorbed moisture then drops to
the bottom of the separator tank. The moisture collected in the separator tank can be drained
through the drain ball valve (#11). This ball valve should be left slightly open anytime the system is
in operation. This allows water to be drained as it is filtered from the air. After each use the drain
ball valve should be completely opened to drain all the moisture that has accumulated. The drain
ball valve (#11) should be left closed anytime the unit is not in use.

The Air Prep System separator tank is a Pressurized Vessel. Propelled objects will cause serious
injury or death. Depressurize vessel before performing any maintenance. See Section 6.2.

5.9 ACS System Air Outlets

On ACS Aftercooler Systems the air outlets are located on the side of separator tank. There are five
outlet ports: one primary outlet and four smaller auxiliary outlet ports. Portable models only have
one outlet. Refer to Section 2.7 for the outlet sizes. Except for Portable models, there are no fittings
or ball valves provided with the outlets. Any required fittings or ball valve should be provided by
the user. Any valves, fittings or hoses installed on or connected to the AirPrep System air outlet
ports must have a minimum operating pressure of 150 psi. Plug all outlet ports that are not used.

Valve, fitting, and/or hose rupture can cause serious injury or death. Do Not install or connect any
valves, fittings or hoses that are not rated for a minimum 150 psi operating pressure.

5.10 Deliquescent/Desiccant Tablets (ADS Systems only)

The volume of the ADS separator tank above the marble bed (#10) can be filled with deliquescent
or desiccant tablets (#9). The tablets can be filled into the separator tank through the handway (#7)
at the top. The deliquescent/desiccant tablets are not furnished with the AirPrep System. These
materials are designed to lower the dew point of the compressed air by removing moisture.
Deliquescent tablets absorb moisture and dissolve into a brine solution. Desiccant tablets adsorb
moisture (adhesion to the contacting surface). The brine solution or water droplets then drop to the
bottom of the separator tank. The moisture or brine solution can be drained through the ball valve
(#11) at the bottom of the tank.

Note:

Keep all drains and outlet valves closed anytime the AirPrep

System is not in use. This is to protect against moist air entering from outside of the system.

Note:

ACS Systems are not designed for use of deliquescent/desiccant.

The Air Prep System is a Pressurized Vessel. Propelled objects will cause serious injury or death.
Depressurize vessel before performing any maintenance. See Section 6.2.

5.11 After-Filter (ADS Systems only)

The particulate after-filter (#2) removes particles of deliquescent or desiccant material that may
have been carried over from the separator tank. The after-filter also is the air source for the
aftercooler air motor. Any debris that is removed by the after-filter can be drained through the drain
valve (#3) located at the bottom of the after-filter. The drain ball valve (#3) should be left closed
anytime the AirPrep System is not in use.