User Guide

VACUUM PROCEDURE

NOTE: This is a two stage vacuum pump equipped with a ballast bleed valve. Open the

valve when instructed then close it within 5 seconds after motor start. The mist

discharge from the vacuum pump vent is a normal part of the vacuum process.

1. When vacuum is selected the machine checks for positive pressure in the AC system. If

positive pressure is detected, the screen will display "REFRIGERANT PRESSURE

DETECTED. RECOVER BEFORE PROCEEDING." Press the EXIT button to go to the

recover function in the main menu.

2. If no pressure is present, the next message displayed will ask "DO YOU WANT TO ADD

OIL TO THE AC SYSTEM?". If the answer is yes, press the YES button. The next

message will instruct you to place the type and amount of oil wanted in the bottle and place

it in the holding bracket. Press CONTINUE when you are ready.

2A. The next screen will ask you to select the vacuum time. Press the ▲ button for the time

desired (must be more than 5 minutes). After the screen displays the “OPEN BALLAST

BLEED VALVE” message, the vacuum pump will start and run for 5 minutes. If an

adequate vacuum is present, the machine will stop and display the message "OPEN OIL

CHARGE VALVE NOW -- CLOSE VALVE WHEN CHARGE IS COMPLETE". Open the

oil charge hand valve to allow the oil to be pulled into the system.

IMPORTANT: ALLOW ENOUGH TIME FOR THE VACUUM TO PULL THE OIL INTO

THE AC SYSTEM AND CLEAR OF THE HOSES BEFORE PRESSING

THE CONTINUE BUTTON.

When completed, close the valve and press the CONTINUE button. The vacuum pump will

restart and complete the remaining run time.

3. If your answer is no, press the NO button. The screen will display the vacuum time

selection screen. Press the ▲ button for the time desired then press the CONTINUE

button to activate the vacuum pump.

4. Once the selected run time has completed, the vacuum pump will stop and the unit will

pause for 1 minute to check for leaks. If vacuum is lost, the screen will display "LEAK

DETECTED. CHECK AC SYSTEM." If vacuum is held, the screen will display "VACUUM

Tank Wgt _____ _____ VACUUM %

lbs oz Full

_____ _____ _____ ___

LO iHG HI iHG SYS PRESS Clutch

VDC

____

___ ____ _____ TIME

Duct ºF Amb ºF Sys ºF

EXIT

Select Vacuum Time

5 Min

▲

▼

CONTINUE EXIT