Air Purge Manual; Calibration; Gas Analysis - Snap-On POLARTEK YF EEAC333 Manual

AIR PURGE MANUAL

From MAINTENANCE, select AIR PURGE MANUAL, the following
screen will be displayed:
R1234yf
PRESS ENTER TO PURGE
PRESS ENTER TO PURGE
Tank pressure xxx psi
Tank Temperature xxx °F
Target Pressure xxx psi
AIR PURGE MANUAL
If "PRESS ENTER TO PURGE" is displayed, there is air in the tank. In
this case, press ENTER: the machine will begin discharging the air.
Press ESC to pause the Air Purging process.
NOTE: If there isn't air into the tank, the following message is
displayed: AIR PURGE NOT NECESSARY.
Press ESC to terminate the Air Purging process, and return to the
MAINTENANCE menu.

CALIBRATION

For assistance, call the Snap-on
toll-free
Technical Support Line
800-225-5786
in the continental U.S. or Canada.
MAINTENANCE
• 33 •

GAS ANALYSIS

The machine will test the purity of the refrigerant gas in the A/C
system before beginning recovery. Contaminated refrigerant
cannot be recovered, since it would contaminate all the
refrigerant contained in the storage bottle. Purity testing is
conducted after a sample of the refrigerant gas to be analyzed is
taken.
From MAINTENANCE, select GAS ANALYSIS, the following screen
will be displayed:
R1234yf
Connect and open HP and LP coupling to A/C
system Press ENTER
GAS ANALYSIS
Connect and open the coupling connected to the A/C system,
then press OK:
R1234yf
GAS ANALYZER
CALIBRATION
GAS ANALYSIS
The analyzer will begin the calibration, then after few second will
start gas analysis:
R1234yf
GAS ANALYZER
REFRIGERANT SAMPLE
GAS ANALYSIS
If the refrigerant is PURE the machine will display the following
screen for few seconds:
R1234yf
REFRIGERANT PURITY
R1234yf:
R1134a:
R22:
Hydrocarb.:
Air:
GAS ANALYSIS
MAINTENANCE
MAINTENANCE
xx %
MAINTENANCE
xx %
MAINTENANCE
yyy %
x %
x %
x %
x.x %