WABCO 1200E - Appendix III - Special Applications; Holset E-Type Compressor Systems

6 Appendix III — Special Applications
37
Meritor WABCO Maintenance Manual 34 (Revised 03-16)
6 Appendix III — Special Applications
Description
Holset E-Type Compressor Systems
When a System Saver Series air dryer is used with a Holset E-type
compressor system, an external Econ valve is used. Figure 6.1.
Figure 6.1
On the 1200E Series, an integral Econ valve eliminates the need for
the external Econ valve. Figure 6.2.
Figure 6.1
PURGE
VALVE
(EXHAUST)
COMPRESSOR
DISCHARGE
LINE
COMPRESSOR
COMPRESSOR
INTAKE LINE
PRESSURE-
CONTROLLED
CHECK VALVE
SUPPLY
TANK
SYSTEM
RESERVOIRS
ONE-WAY
CHECK
VALVE
DRYER
INLET
PORT
UNLOADER
LINE
RESERVOIR-
TO-GOVERNOR
LINE
1800
1200
ECON
VALVE
CHECK VALVE
(FLOW DIRECTION)
BACKFEED
LINE
SUPPLY
LINE
SIGNAL
LINE
COMPRESSOR
DISCHARGE
LINE
DRYER
OUTLET
PORT
REGENERATION
VALVE
4003880a
GOVERNOR
CONTROL
(PURGE)
PORT
SYSTEM SAVER SERIES
REGENERATION
STYLE AIR DRYER
UNLOADER
PORT