AIR CONNECTION DIAGRAM
AIR COMPRESSOR
MP75.075C
05FEB02
HWH COMPRESSOR
CONTROL - 9700
FORETRAVEL
COMPRESSOR
CONTROL
SEE ELECTRICAL CONNECTION
DIAGRAM - AIR COMPRESSOR
ADJUSTABLE RELIEF
SET AT 125 P.S.I.
BOTTOM PORT OF RELIEF
VALVE MUST BE KEPT OPEN
PORT (A) IS CONNECTED TO
THE HWH AIR LEVELING SYSTEM.
PORT (B) IS CONNECTED TO
THE COACH AIR SUPPLY SYSTEM.
PORT (C) IS CONNECTED TO
THE AIR SEAL/ACC. AIR TANK.
SOLENOID (1)
NORMALLY OPEN
SOLENOID (1) IS THE WATER TRAP DUMP VALVE.
THIS VALVE IS CLOSED WHENEVER THE COMPRESSOR IS RUNNING.
SOLENOID (2) OPENS WHEN THE FORETRAVEL DASH SWITCH IS ON.
THE AIR COMPRESSOR RUNS IF THE PRESSURE SWITCH HAS RESET
(COACH AIR BELOW 70 - 80 P.S.I.). THIS MAINTAINS COACH AIR SUPPLY
AT APPROXIMATELY 90 P.S.I. IF THE VEHICLE IS EQUIPPED WITH AN
SOLENOID (3) CLOSES WITH A +12V SIGNAL FROM THE HWH CONTROL
SYSTEM. THIS ALLOWS THE HWH AUXILIARY AIR COMPRESSOR TO BE
USED FOR AIR LEVELING ONLY.
THE AIR COMPRESSOR RUNS WHENEVER THE PRESSURE SWITCH
RESETS (AIR SEAL/ACC. TANK BELOW 70 - 80 P.S.I.). THIS MAINTAINS
THE AIR SEAL/ACC. TANK AT APPROXIMATELY 90 P.S.I.
PRESSURE SWITCH - SET TO
OPEN AT 90 P.S.I. - RESET
AT 70 TO 80 P.S.I.
PORT (C)
SOLENOID (2)
NORMALLY
CLOSED
PORT (B)
PORT (A)
NORMALLY
OPEN
SOLENOID (3)
CHECK
VALVE
(VIEW A)
VIEW A
+12V BATTERY
AIR AWNING THE COACH AIR SUPPLY WILL BE MAINTAINED AT 110 P.S.I.