Kussmaul Electronics 091-9-AD - Manual (Page 2)

INTRODUCTION
The Auto Drain system consists of a 12 volt normally open solenoid, a filter and assorted
fittings. Designed to work with the 12 volt Auto Pump, the solenoid bleeds the filter bowl
when the pump is not running. As soon as the pressure switch turns on the compressor,
the solenoid is energized and the bleed is closed. A check valve that is supplied with the
Auto Drain kit must be installed as shown to seal off the vehicles air pressure when the
bleed valve opens.
ITEM QUANTITY PART NUMBER DESCRIPTION
1 1 A2231-1-C203 Solenoid Valve, 12 volts D.C., normally open
2 1 F5044-02-DH-Z310 Filter, with metal bowl
3 1 216P-2 Nipple, 1/8 NPT Close
4 1 219-P-2 Plug, 1/8 NPT
5 1 219-P-4 Plug, 1/4 NPT
6 1 130CA Elbow, 1/4 NPT, male - 1/8 NPT male
7 1 1202P4-4 Street elbow, 1/4 NPT
8 1 PL1/4-NIUT Elbow, 1/8 NPT, male - 1/4 tube
9 1 14CVS Check Valve, 1/4 NPT male -1/4 NPT male
10 1 PLB101-4 Tee, brass, 1/4 NPT
11 1 NN4-035 1/4 Tubing, 24 inches
12 1 PVC-1/4 Sleeving, 1/4" PVC, 11 inches
13 1 PLB112-4 Nipple, 1/4 NPT, Close
AUTO DRAIN COMPONENTS