10. Individual function selection procedure
With this procedure, all functions (refrigerant recovery & recycling, A/C system evacuation,
recovered oil drain, new oil and UV dye injection and refrigerant charge) can be performed
individually.
The values for the quantity of refrigerant recovered, quantity of the oil recovered, vacuum time,
quantity of oil injected and quantity of refrigerant charged into the a/c system are automatically
printed at the end of each single operation.
10.1. Recovery & Recycling Mode
The purpose of the Recovery & Recycling mode is to recover refrigerant from the air conditioning
system, which will condense, purify and store the liquid refrigerant in the storage cylinder ready
for re-use.
To initiate the Recovery mode, press the 'DOWN' key once, followed by 'START' on the console.
Display will show "- - - -". Now, there are two choices:
1. To recover all the refrigerant from a storage cylinder or A/C system, press “START” again.
2. To select quantity of refrigerant to be recovered or transferred from a storage cylinder or A/C
system, use the "UP" or "DOWN" keys to select the desired amount, and press "START”
Note: Open the hand manifold valves (4) on the console to allow the flow of the
refrigerant from the a/c system before making the above selection.
Also, open valves on the unit storage cylinder (12) and ball valve on the cylinder
liquid hose (16).
During the recovery process, the 'Recovery' mode enunciators will now be ON and the display (2)
will indicate the amount of refrigerant being recovered.
In normal operation the above condition will be maintained until a vacuum of -0.4 bar (15 In Hg) is
reached at either the discharge or suction ports. When this occurs, the machine will beep once,
and the Ariazone will enter the recovery "PAUSE" mode. In this mode, the Ariazone will shut
down the recovery function and pause for 3 min., which during this time the recovery mode
enunciator will be ON constantly. The display (2) will indicate "PAUSE". During this function, the
Ariazone is monitoring whether the air-conditioning system pressure is increasing, due to any
refrigerant that may be left in the accumulator or dryer. If the pressure increases above zero, the
machine will re-start the recovery function automatically recover the remaining refrigerant.
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