Robinair ACR2005 Air Conditioning and Refrigerant Service Solution - Manual (Page 21)

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ACR2005 Refrigerant Service Solution
Operating Instructions
NOTE: If an insufficient pressure differential exists between the tank and
system, charging suspends, and the ACR2005 goes into a power charge mode
to increase tank pressure to complete the charge. This normally occurs only
when the ACR2005 has been in a very cool environment before use.
7. When charging is complete, the red indicator light flashes and the beeper
sounds to indicate the process is complete. The ACR2005 automatically goes
to the SNAPSHOT mode, allowing you to provide an after-service snapshot
of key operating information. This data includes:
Date/Time
Ambient Temperature and Humidity
Low-Side System Pressure minimum value
High-Side System Pressure maximum value
Front Duct Temperature minimum value
Rear Duct Temperature minimum value
Refrigerant Identifier Results
Additionally, the amount of refrigerant recovered and refrigerant charged can be
captured after completion of each of these operations.
The ACR2005 displays and updates minimum and maximum values described above.
Pressing the RESET MIN/MAX key resets and begins tracking new minimum and
maximum values. You may press the PRINT key at any time to capture and print
the screen information. The printout contains the data shown on page 15.
8. Press the DONE key to exit the SNAPSHOT mode. If necessary you will be
prompted to close the high-side coupler valve so the hoses can be equalized.
With the ENGINE OFF, close the valve and press the START key. (This step
is crucial in maintaining charge accuracy!)
WARNING!
Close the service couplers before disconnecting from the system to
prevent any release of refrigerant.
9. When the hoses are equalized, you are prompted to close the service couplers
and disconnect the service hoses. THIS STEP IS VERY IMPORTANT TO
ENSURE THE ACR2005 RECOVERS ANY RESIDUAL REFRIGERANT
FROM THE HOSES.
FAILURE TO DISCONNECT HOSES WILL RESULT IN RECOVERY
OF THE VEHICLE’S REFRIGERANT.
Replace caps on the vehicle’s access ports.
10. Press the START key to recover refrigerant from the hoses.
IMPORTANT: If
the coupler
valves on the
high- or low-
side are left
open, the
system will
pull the
refrigerant
back out of the
vehicle.