User Manual

9
Using the Digital Display
This section explains the messages shown on the digital display,
which is illustrated here for your convenience.
Segment A — Indicates in which mode the unit is operating:
PROGRAM — The unit is in the programming mode, which
allows you to program vacuum time and refrigerant weight or to
review the existing program.
HOLD — This mode is used while changing a refrigerant tank
or to interrupt the vacuum/charging/recovery cycles.
AUTOMATIC — Indicates that the unit is running in a given
cycle and will automatically stop when the cycle is complete.
Segment B — Indicates that the unit is either evacuating the A/C
system or recovering, recycling, or recharging refrigerant or that
the unit is ready to be programmed for one of these functions:
VACUUM
• With PROGRAM, indicates that the unit is ready to be pro-
grammed for vacuum.
• With AUTOMATIC, indicates that the vacuum pump is running;
the number displayed counts down in minutes and seconds,
showing the amount of time remaining.
• With HOLD, indicates that HOLD/CONT was pressed to
interrupt the vacuum cycle.
RECYCLE
• With AUTOMATIC, indicates the unit is recycling refrigerant
from the tank.
CHARGE
• With PROGRAM, indicates that the unit is ready to be pro-
grammed for the amount of refrigerant to be charged into the
A/C system; on the keypad enter the charge in pounds and
hundredths of a pound or kilograms, depending on the model
you have.
• With AUTOMATIC, indicates the unit is charging refrigerant
into the A/C system; the number shown on the digital display
counts down, showing the remaining amount of refrigerant to
be dispensed.
• With HOLD, indicates that HOLD/CONT was pressed to
interrupt the charging cycle; the number shown on the digital
display is the amount of refrigerant remaining to be charged
into the A/C system; to continue charging, press HOLD/CONT
again.
RECOVER
• With AUTOMATIC, indicates the unit is recovering refrigerant
from the A/C system and shows the amount of refrigerant
recovered in pounds or kilograms, depending on the model
you have.
OIL(OUNCES) OR OIL(GRAMS)
• Lights up as a reminder to drain the oil separator after each
job.
Segment C — Shows a number or a coded error message on
the digital display that indicates the unit’s operating status or any
specific problems.
NUMBER
Indicates the vacuum time in minutes or the refrigerant weight
in pounds or kilograms, depending on the model you have.
ERROR CODES
• CAL — Calibrate the scale.
• CH-F — Change the filter-drier.
• CL-L — Low side clearing routine in progress.
• CON — Continuous; the vacuum pump will run continuously.
• CPL — Complete; cycle process is finished.
• FIL — Filter change process.
• FULL — Refrigerant recovery tank is full.
• HI-P — High pressure, system pressure is above 350 psi.
• OIL — Change the vacuum pump oil.
• U-HI — High pressure to the vacuum pump.
• SCAL — Scale problem; scale may be broken or disconnected,
or tank weight has exceeded 80 pounds (36 kilograms).
• 99LB — The maximum amount displayed during recovery is 99
kilograms; reset the unit.
Segment D — Indicates that refrigerant is low—approximately
six pounds (or 2.7 kg) of refrigerant is left in the tank. If the tank is
low, either replace the tank or add refrigerant following the
instructions in “Adding Refrigerant To The Tank.”
VACUUM + PROGRAM = Program unit for
vacuum
VACUUM + AUTOMATIC = Vacuum pump is
running
VACUUM + HOLD = Interrupted vacuum
cycle
RECYCLE + AUTOMATIC = Unit is recycling
refrigerant
CHARGE + PROGRAM = Program unit for charge
CHARGE + AUTOMATIC = Unit is charging A/C
system
CHARGE + HOLD = Interrupted charging
cycle
RECOVER + AUTOMATIC = Unit is recovering
refrigerant
Quick Reference Chart
Segment B messages
Diagram of Digital Display
Diagramm der Digitalanzeige