Mode 3– Charge Only
The Charge Only function of the Model 830 is
designed to add a precise amount of refrigerant
when the A/C system is low on refrigerant. This
mode is most often used when the A/C system is
working but does not produce sufficiently cold air.
MODE 3 Operational Steps
1. Refer to the Pre-Operation Check List.
NOTE: If desired, the gauges of the Model 830
can now be used to aid investigation of an A/C
system problem. Ensure the automobile A/C
system is turned off prior to selecting a mode on
the Model 830.
2. Verify the automobile air conditioning system is
off.
3. Press MODE 3 for Charge Only.
4. The LCD will read
CONNECT HOSES ENTER
TO CONTINUE
. Press the
ENTER
key.
5. Connect the high and low side auto service
hoses to the respective high and low side service
ports on the automobile A/C system. Open the
service hose valves.
6. When the LCD reads
“SET CHARGE
AMOUNT,”
set the amount of refrigerant to be
charged into the A/C system by pressing and
holding INCREASE or DECREASE key until the
desired amount is shown. Release the key and
press ENTER to set the charge amount shown
on the LCD.
7. The LCD should read
“PUSH START.”
8. Press START key to begin charging operations.
The 830 Series will start the charge cycle.
The LCD will display the progress of the charging
process. When the desired charge amount has been
transferred to the A/C system, the unit will beep.
9. Verify the message on the LCD reads
“CHRG
ONLY COMPLETE.”
Unit will force a hose clear-
ing routine (See Full cycle).
10. Shut the service valves and disconnect the high
and low side auto service hoses from the auto-
mobile.
11. Press the RESET key to return to the
“SELECT
MODE”
status.
The Full Cycle function of the Model 830 is designed
to remove and recycle all refrigerant in an A/C sys-
tem by transferring the refrigerant to the storage
tank, remove moisture in the system by pulling a
vacuum, and charging the system with a precise
amount of refrigerant.
MODE 4 Operational Steps
1. Refer to the Pre-Operation Check List.
NOTE: If desired, the gauges of the Model 830
can now be used to aid investigation of an A/C
system problem. Ensure the automobile A/C
system is turned off prior to selecting a mode on
the Model 830.
2. Verify the automobile air conditioning system is
off.
3. Press MODE 4 for Full Cycle. The LCD will read
“CONNECT HOSES”
4. Connect the high and low side auto service
hoses to the respective high and low side service
ports on the automobile A/C system. Open the
service hose valves.
5.
When the LCD reads
“SET VACUUM TIME,”
set the vacuum hold time by pressing and hold-
ing INCREASE or DECREASE until the desired
time is shown. Release the button and press
ENTER to accept the vacuum hold time shown
on the LCD.
NOTE: Vacuum hold time can be bypassed if the
time is set to zero.
6. When the LCD reads
“SET VAC HOLD TIME,”
set the vacuum time by pressing and holding IN-
CREASE or DECREASE until the desired time is
shown. Release the button and press ENTER to
accept the vacuum hold time shown on the LCD.
NOTE: Vacuum hold time can be bypassed if the
time is set to zero.
7. When the LCD reads
“SET CHARGE
AMOUNT,”
set the amount of refrigerant to be
charged into the A/C system by pressing and
holding INCREASE or DECREASE until the de-
Mode 4– Full Cycle
9
