Robinair 34788NI Premier R-134A Refrigerant Recovery, Recycling, and Recharging Machine

Original Instructions - Page 19

For 34788NI. Also, The document are for others Robinair models: 34788NI-H, 34788NI-230

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17
573104 REV C
Recover Refrigerant from a Vehicle
1. Empty the oil drain bottle before starting a recovery.
Remove the oil drain bottle from the machine by pulling
the bottle straight down—do not use a twisting or rocking
motion. Reinstall the oil drain bottle. See Figure 2.
2. Connect the high-side (red) and low-side (blue) service
hoses to the vehicle A/C system.
3. Open the coupler valves on the hoses by turning the
collars clockwise.
4. Select RECOVER from the MAIN MENU.
5. The machine will enter the service data entry form. Enter
all applicable data and select to continue.
The machine begins the recovery process. A clicking
noise indicates the solenoid is opening and closing
this is normal.
The machine runs a self-clearing cycle to clear any internal
refrigerant from its internal plumbing.
System recovery begins and includes a timed vacuum,
deep recovery process.
After recovery, the machine will perform an oil drain, which
may require up to 90 seconds to complete.
6. After the oil drain is complete, a summary is displayed
showing the total amount of refrigerant recovered. The
user is prompted to “Check Oil Drain Bottle” to note
amount of oil drained. Recovery information can be
printed by selecting on machines equipped with a
printer.
7. Select to return to the Main Menu.
Note: The displayed recovered weight can vary depending
on ambient conditions and should not be used as an
indicator of scale accuracy.
Note: The amount of oil that was removed from the A/C
system is the amount of new oil that should be charged
into the A/C system after evacuation is complete.
Use only new oil to replace the oil removed during
the recycling process.
Dispose of used oil according to government
regulations.
Figure 2
Operating Instructions
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
Oil Drain
Bottle
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