WABCO 1200E - ECON Valve

6 Appendix III — Special Applications
38
Meritor WABCO Maintenance Manual 34 (Revised 03-16)
Figure 6.2
If you are currently using a System Saver Series air dryer WITHOUT
an Econ valve, and your application requires one, Meritor WABCO
recommends installing the System Saver 1200E.
ECON Valve
Meritor WABCO recommends the ECON valve be mounted in the air
system away from the dryer. This helps prevent dryer freeze-up.
Refer to the vehicle manufacturer’s manual for installation
instructions.
To replace an ECON valve that is mounted directly to the air dryer,
follow these instructions.
1. Unscrew and remove all of the lines from the Econ valve at the
air dryer inlet port. Figure 6.3.
Figure 6.2
1002187b
PURGE
VALVE
(EXHAUST)
COMPRESSOR
DISCHARGE
LINE
COMPRESSOR
CONTROL
(PURGE)
PORT
COMPRESSOR
INTAKE LINE
PRESSURE-
CONTROLLED
CHECK VALVE
SUPPLY
TANK
SYSTEM
RESERVOIRS
ONE-WAY
CHECK
VALVE
SYSTEM SAVER 1200E AIR DRYER
WITH REGENERATION AND TURBO
CUT-OFF — ECON VALVE NOT REQUIRED
DRYER
INLET
PORT
UNLOADER
LINE
RESERVOIR-
TO-GOVERNOR
LINE
1200E
DRYER
OUTLET
PORT
REGENERATION
VALVE
GOVERNOR
UNLOADER
PORT