Robinair 34134Z Refrigerant Recovery, Recycle, Recharge Unit - Manual (Page 16)

© 2003 SPX Corporation
14
Operation
Operating Guidelines contd.
•
During operation, any of the following messages may appear on the display
screen. If a message appears, immediately take the appropriate action.
CHANGE FILTER — This message appears after every 150 lbs. (68.0 kg) of
refrigerant has been recovered, indicating that the filter-drier needs to be
replaced. Refer to
Replacing the Filter-Drier in the “Maintenance” section
of this manual.
NOTE: To avoid service delays, keep extra filter-driers on hand.
CHANGE OIL — This message appears after every 10 hours of vacuum
pump use. Refer to
Changing the Vacuum Pump Oil in the “Mainte-
nance” section of this manual.
DRAIN OIL — This message appears after recovering refrigerant from an
A/C system. For more information, refer to
Draining the A/C System Oil in
the “Operation” section of this manual.
HIGH PRESSURE — This message appears if the internal storage vessel’s
pressure rises to 435 psig (30 bar) or higher. Let the unit cool down for 30
minutes. Then press the Mode key and the Up arrow key to clear the
message from the display screen. If the message does not clear, contact a
manufacturer-authorized service technician.
OVERLOAD — This message appears if the weight of the internal storage
vessel reaches 43 lbs. (19.5 kg), or if the unit’s weight scale is damaged,
disconnected, or out of calibration. Immediately remove refrigerant from the
internal storage vessel. Then press the Mode key and the Up arrow key to
clear the message from the display screen. If the message does not clear,
contact a manufacturer-authorized service technician.