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TANK REFILL
In order to use the charging mode, you must have at
least six (10) pounds of refrigerant in the storage tank.
Follow this procedure to add refrigerant to the storage
tank. When adding R-134a to the onboard storage tank
you will need to use the tank refill adapter (PART NUM-
BER 19153) supplied in the accessory kit. This adapter
connects the low side auto service coupler to the tank
of new R-134a refrigerant. It should be stored in the
tool tray on the top of the unit.
1. Select TANK REFIL from the main menu.
2. Connect the blue low side auto service hose to the
new refrigerant source tank and open the tank
valve. Turn the source tank upside down to ensure
all of the refrigerant is transferred to the storage
tank on the unit. Press the ENTER key.
3. Make sure you are reading pressure on the low-side
gauge.
4. Press the START key. Refrigerant will transfer to
the storage tank. The unit will shut off automatically
when either the supply tank is empty or the storage
tank is full.
Press the RESET key to return to the main menu.
DO NOT RECOVER CONTAMINATED REFRIGERANT WITH THIS UNIT. RECOVERING CONTAMINATED
REFRIGERANT WILL VOID ALL WARRANTIES AND MAY CAUSE DAMAGE TO OTHER AUTOMOBILES
THAT YOU SERVICE IN THE FUTURE.
REFRIGERATION MANAGEMENT
The Refrigerant Management System built into the
37880 tracks all aspects of refrigeration usage. The
information can significantly help you manage your
automobile A/C repair business. In addition, new fed-
eral regulations require strict records of your refrigerant
usage. The software in this system is designed to en-
sure the highest possible accuracy in managing refrig-
erant usage. Refrigerant measurement during charging
is extremely accurate. In Charge mode, however, accu-
racy is plus or minus 1/2 ounce based on variations in
air temperature and pressure.
Uses of the refrigerant data include:
Improved record keeping
Accurate determination of net profits
Reduced billing errors
Minimized refrigerant loss from leaks and theft
Reduced operator errors
Models with the optional refrigerant identifier
37881/37888
The unit will display "IDENTIFY REFRIGERANT ?" To
make your selection use left or right arrow keys to tog-
gle 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 the re-
frigerant identification process.
If the refrigerant does not pass the identification proc-
ess (98% purity) the unit will display the error message
" CONTAMINATED" and the screen will show the re-
sults of the identification. Press the Reset key and fol-
low the instructions on the 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 remove
the contaminated refrigerant with a separate unit for
removal of contaminated refrigerant.
WARNING
The refrigerant management information is stored in
eight registers. To access the information, press
Mode 7, REFRIGERANT MANAGEMENT SYSTEM.
Press RMM key to cycle through the screens. The
screens contain the following information:
Screen 1: Last Job Information
Run Time
Refrigerant Recovered
Refrigerant Charged
Refrigerant Added
Screen 2: Year-to-date Information
Total Run Time
Total Amount Recovered
Total Amount Charged
Refrigerant Added "New"
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