MotorVac CarbonClean System MCS 245 - Manual (Page 10)

Pressure Switch Operation:
• The pressure switch is opened when the pressure is less than 4 PSI and is closed when the pressure is 4 PSI or
greater.
• The internal pressure switch is not adjustable.
Solenoid Operation:
• The solenoid opens when the pump motor is running in either fill/purge or cleaning (service) mode. Note: The
solenoid is normally closed.
Stop Operation:
• Whenever the STOP button is pressed, the unit’s pump motor will stop and TIME LED display is turned off.
The unit will automatically go into purge mode.
Timer Operation:
• LED will blink in five-minute increments. For example, if 12 minutes are left in the run cycle, the 15-minute
LED will flash until the timer reaches 10 minutes.
• When the timer reaches 0 minutes left, the CYCLE COMPETE LED will go on and the end of service alarm
will sound.
Service Time Operation:
• The TIME ­ and the ▬ buttons are used to adjust the service time, while the cleaning or leak test is in
progress.
• The maximum time available is 60 minutes; the minimum time available is 5 minutes. The time is adjusted in
increments of 5 minutes. There is a 10-minute increment between 50 and 60 minutes, so a time of 55 minutes
cannot be set.
• When the timer starts, the time can be adjusted. The first minute after setting the timer, the unit will check to
see if the time has changed. If it has, this new time will be stored as the cycle time for the current run. This
applies to cleaning and leak test times.
• If the
▬ button is continuously pressed until the time reaches zero, the end of service alarm will sound and
the CYCLE COMPLETE LED will turn on.
• When the unit is powered on, the CYCLE COMPLETE LED is displayed.
Fuel Level Window Operation:
• The FUEL LEVEL WINDOW shows the amount of fuel in the tank.
• The FUEL LEVEL WINDOW indicates the fuel level in 1/8-tank increments. From the empty to the full mark
is approximately one gallon.
• When the FUEL LEVEL WINDOW is at the empty (“E”) level there is approximately one and a half quarts of
fuel in reserve below the reservoir empty level, in the filter, pump, tank, and lines.