Introduction; Product Overview - Johnson Controls A-4400 Series Installation And Maintenance Manual

Product
Overview

Introduction

The A-4400 Series Refrigerated Air Dryers are designed for continuous
operation to supply dry air to pneumatic control systems. All components
are selected and assembled to provide dependable service over a long
period of time with a minimum amount of maintenance.
Note: For units without a factory mounted Air Purification System
(consisting of a coalescing oil removal filter with integral
pressure drop indicator, packed column type activated carbon oil
vapor removal filter, service bypass valve, pressure reducing
valve, safety relief valve, and power on/fail lamp), a properly
configured system must include a coalescing oil removal filter as
well as an activated carbon oil vapor removal filter as outlined in
Product Data A-4000 and the Installation and Service Manual for
PureFlow™ Air Compressors (Publication No. 2629).
Table 1: Ordering Data
Code
Number
A-4412-1
A-4412-2
A-4417-1
A-4417-2
A-4423-1
A-4423-2
* The rated condition is 20 psig (140 kPa) supply pressure, 100 °F (38°C)
saturated inlet air temperature, 100°F ambient temperature, and 80 psig
(560 kPa) inlet pressure.
** lb x 0.454 = kg.
Flow Capacity at
Rated Condition*
scfm
(L/s)
12
(5.7)
12
(5.7)
17
(8.0)
17
(8.0)
23
(10.9)
23
(10.9)
Air Dryers—A-4400 Series Technical Bulletin
Air Shipping
Purification
Weight
System lb**
Yes 72
No 67
Yes 78
No 73
Yes 78
No 72
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