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FULL CYCLE cont.
Models with the optional refrigerant identifier
37881/37888.
The unit will display "IDENTIFY REFRIGERANT?"
To make your selection use the left or right arrow
keys to toggle from YES to NO. Press the ENTER
key to make your selection and then press the
START key to start the process. If YES is selected
the unit will begin refrigerant identification process.
If the refrigerant does not pass the identification
process (98% purity) the unit will display the error
message "CONTAMINATED" and the screen will
show the results of the identification. Press the
RESET key and follow the instructions on the
SERVICING HIGH VOLTAGE A/C SYSTEMS
(MODELS 37837, 37887 AND 37888 ONLY)
Due to issues with oil contamination in High Volt-
age A/C systems the 37837, 37887 and the 37888
have a unique flushing feature that reduces cross
contamination of oil below SAE and OEM specifica-
tions.
It is necessary to perform the following procedure
before working on a High Voltage A/C system.
1. Select HYBRID HOSE FLUSH in the main menu
2. When the display reads "PLEASE CONNECT
FLUSH ADAPTER" connect the supplied flush
HYBRID HOSE FLUSH
The Hybrid Hose Flush feature is used to remove
residual oil and contaminates from the unit and
hoses. The SAE J2788 H standard requires that the
unit remove the residual oil so there isn't a risk of
cross contaminating the oil in a hybrid A/C system.
INTERGRATED MICRON GUAGE
(37889 MODEL ONLY)
The 37889 model has an integrated micron gauge
that can be used to determine the micron level of
the A/C system.
screen and the unit will clear itself automatically.
Repeat the identification process to insure the
proper identification of the refrigerant purity level.
If the unit fails the second time follow the on screen
instructions and take the appropriate steps to re-
move the contaminated refrigerant with a separate
unit for removal of contaminated refrigerant.
WARNING: DO NOT RECOVER CONTAMINATED
REFRIGERANT WITH THIS UNIT. RECOVERING
CONTAMINATED REFRIGERANT WILL VOID ALL
WARRANTIES AND MY CAUSE DAMAGE TO
OTHER AUTOMOBILES THAT YOU SERVICE IN
THE FUTURE.
adapter between the high and low side hoses.
3. Press the ENTER key to begin the process
4. The display will then read "FLUSHING HOSES
PLEASE WAIT"
5. When the process is complete press the RESET
key to return to the main menu.
WARNING:
FAILURE TO PERFORM THIS PROCESS CAN
CAUSE DAMAGE TO THE A/C SYSTEM
COMPRESSOR AS WELL AS OTHER ELECTRICAL
COMPONENTS RELATED TO THE A/C SYSTEM.
THE POSIBILITY OF ELECTRICAL SHOCK TO THE
TECHNICIAN OR OTHERS MAY ALSO OCCUR BY
NOT PERFORMING THIS PROCESS.
Failure to perform this function before working
on a hybrid A/C system can cause serious issues
with the electrical system. Having too much of the
wrong type of oil in a hybrid A/C system can
conduct the electricity to the outside of the A/C
compressor.
Instructions on how to use this feature:
Full Cycle / Vacuum Operations – Select micron
level by using the up or down arrows. If you would
rather enter a time for the vacuum cycle press the
START key. Use the numeric keypad to set
vacuum time. NOTE: Because of the location of
the vacuum sensor it may be necessary to set the
micron lever lower to compensate.
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