Bacharach 2072-0400 Manual De Usuario

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Operation  
MAC2000  
7. 
If more refrigerant needs to be added, press the Additional Charge 
function key. Otherwise, press the Done function key to exit the 
Snap-Shot mode. 
 
8. 
Close the service-port valves; remove the service hoses from the 
vehicle; then press the Start key to recover the hoses. 
 
Important!
  
If the hoses are not removed from the vehicle before the 
Start key is pressed, the refrigerant in the vehicle will be recovered!
 
 
9. 
If any oil was removed during the recovery or evacuation process, 
make sure that the proper amount of oil is added back into the 
vehicle’s A/C high side port in accordance with the vehicle 
manufacturer’s recommendations. Add an amount of new oil equal 
to the amount collected in the oil drain bottle (see MAC2000 Left-
Side View, Page 5).   
 
 
3.6  System Flush Mode (Oil Flush) 
 
The System Flush mode is designed to be used on General Motors 
vehicles using their Oil Flush Adapter and Filter accessory. This 
accessory is attached inline with the vehicle’s compressor and is used 
to flush the A/C system with refrigerant. In this mode, refrigerant is 
circulated through both the A/C system and the MAC2000 where an 
oil separator removes the oil and returns oil-free refrigerant back into 
the A/C system for further flushing. At the end of the cycle, the 
refrigerant is completely removed from the A/C system and stored in 
the unit’s internal storage tank. The flushing process can take up to 
30–45 minutes to complete. Because of the variety of A/C system 
configurations currently in service, the flush may bypass certain 
sections of the A/C system. To ensure the complete system is flushed, 
the technician may need to pinch off certain hoses to force the 
refrigerant flush throughout the system. 
 
1. 
Before beginning the flushing process, recover all refrigerant from 
the vehicle’s A/C system per Section 3.3 Recovery Mode
 
2. 
From the Main menu, press the Next menu function key to display 
Menu 2, and then press the System flush function key to select the 
System Flush mode. The unit reminds the technician to “Please 
empty the purge oil bottle prior to flushing
.”  
 
3. 
Press Start to continue. The unit now reminds the technician to 
install the inline flushing adapter and remove the orifice tube or 
TXV valve before continuing.  
 
4. 
If not already done, connect the high- and low-side service hoses to 
their respective service ports, and ensure that the service-port 
valves are open. 
 
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Instruction 2072-0400