Product Overview

Oil Reservoir
Fig. 13: A-4000-145 Oil Reservoir and
Bracket Assembly
The A-4000-145 Oil Reservoir (see Fig. 13) provides
a means of identifying excess oil pumping
(compressor maintenance) as well as water
entrainment (air dryer maintenance). If either occurs,
replacement of the oil removal elements is required.
The oil reservoir also provides a means of collecting
the coalesced oil for proper disposal.
Note: Refer to the Drain Cock section for drain
cock replacement ordering data.
Oil Removal Filters
Coalescing Filter Charcoal Filter
Fig. 14: Oil Removal Filters
The combination of coalescing and activated charcoal
filters (see Fig. 14) in series removes both oil aerosols
and vapors to provide clean, oil free air for pneumatic
control systems. These filters have a maximum input
pressure rating of 150 PSIG (1050 kPa) and an upper
temperature limit of 125°F (52°C).
Note: The air supply to this filter combination
must be from a properly broken in air compressor
producing less than 6 ppm aerosol oil (as
measured by a Johnson Controls A-4000-120 Oil
Indicator on the compressor tank outlet) and must
also pass through a properly operating air dryer.
Table 4: Models
Description Efficiency Rating Code No.
Coalescing
10 SCFM (4.7 L/s) 99.999+ % efficient for particles A-4000-1048
20 SCFM (9.4 L/s)
.025 microns in size and larger.
A-4000-1049
40 SCFM (18.9 L/s) A-4000-6001
Carbon
10 SCFM (4.7 L/s) 100% efficient for particles A-4000-147
20 SCFM (9.4 L/s)
as small as .025 microns in size.
A-4000-146
A-4000 Product Bulletin 5