Robinair 34788-I Recovery, Recycling, Recharging Unit - Manual (Page 19)

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539602 Rev. H June 11, 2013
Enter the Serial No. for a New Filter-Drier
The numerical keys on the keypad include
an alphabet that is used to enter the serial
number code for the new filter-drier. The
procedure is similar to text messaging. For
example,
To enter an “A”:
Press the 2 key once
to see the “2” on the
digital display; press
the 2 key again to
display the “A”.
To enter a “C”:
Press the 2 key once
to see the “2” on the
digital display; press
the 2 key three more
times to see the “C”
on the display.
After the appropriate letter is shown on the
display, pause for a moment until the cursor
moves to the next position.
Operating Tips
Maintenance
Replace the Filter-Drier
The filter-drier is designed to trap acid and particulates,
and to remove water from refrigerant. To meet the
SAE J-2788 mandate for adequate moisture and
contaminant removal, the filter-drier must be replaced
after 150 lbs. (68 kg) of refrigerant has been filtered.
Therefore, you no longer have a choice—the filter-
drier must be replaced. The unit gives a warning when
100 lbs. of the filter capacity has been used; the unit
locks down when the 150 lb. filter capacity has been
reached and will no longer function. For this reason,
always have a spare Robinair No. 34724 filter-drier on
hand.
Check Remaining Filter Capacity
1. Press MENU.
2. Use the arrow keys to scroll through the menu to
MAINTAIN FILTER, and press START / YES. The
unit displays
XXX LBS FILTERED
RECOVER LOCKOUT IN XXX LBS
REPLACE FILTER NOW?
PRESS STOP TO EXIT
3. Press STOP / NO to exit.
Change the Filter
1. Press MENU.
2. Use the arrow keys to scroll through the menu to
MAINTAIN FILTER, and press START / YES. The
unit displays
XXX LBS FILTERED
RECOVER LOCKOUT IN XXX LBS
REPLACE FILTER NOW?
PRESS STOP TO EXIT
3. Press START / YES to proceed.
4. If there is pressure in the filter, the unit begins
a clearing process. When complete, the display
reads ENTER 10 DIGIT SERIAL NUMBER. Use the
keypad to enter the serial number that appears on
the new filter-drier, and press START / YES.
CAUTION: Use only authentic Robinair
No. 34724 filter-driers in this machine. All
performance tests and claims are based on
using this specific filter-drier.
And only the Robinair No. 34724 filter-drier
includes the code necessary to make the
unit operable again.