Robinair 17700Z Recovery, Recycling, Recharging Unit - Manual (Page 12)

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© 2003 SPX Corporation
Recharge the A/C System
If an oil inject has already been performed, you
may skip steps 1 and 2.
1. Press CHARGE .
2. Select START / YES , to perform an oil inject;
select STOP / NO to skip the oil inject.
3. Press CHARGE to toggle between a high-side or
low-side charge.
Note: Charge mode after injecting oil will only allow a
high-side charge.
4. Accept either the default weight by pressing START
/ YES , or type in a weight, using the number keys,
and press START / YES .
5. After a valid charge weight is entered, the display
reads
CHARGE IN PROGRESS / DO NOT DISTURB
CHARGED=X.XX LBS. (X.XX KG)
Moving or bumping the unit at this point may result
in an incorrect reading.
6. When the charge is complete, the display reads
EQUALIZE HOSES?
X.XX LBS (KG) CHARGED
Press START / YES to equalize hoses. Press
STOP / NO to resume charging.
Equalize Hoses
After the charge is complete, the user has the option to
equalize the pressure in the hoses to ensure a more
accurate charge. If the pressure in the high side and low
side is not equal after charge, then it may be necessary
to follow this procedure to ensure all the liquid
refrigerant trapped in the service hoses is transferred to
the vehicle A/C system.
1. After the charge is complete, the user has the option
to equalize the pressure in the hoses.
Selecting START / YES prompts the user through
the EQUALIZE HOSES procedure.
Select STOP / NO to resume charging.
2. Close the high-side coupler valve.
Operating Instructions
Operating Tips
After selecting the CHARGE function and
entering a desired weight, if the weight entered
will leave less than 3 lbs. (1.36 kg) of
refrigerant in the internal tank after charge, the
charge function will not start. The display reads
INSUFFICIENT REFRIG.
PRESS ANY KEY TO EXIT
Refer to the Maintenance section of this manual
for instructions on Refilling the Internal Tank.
Slow Charge Procedure
If, during the CHARGE cycle, the weight fails
to charge 0.05 lbs. (0.02 kg) in 30 seconds, it
may be necessary to use the vehicle to pull the
charge into the A/C system. The unit “beeps”
while the display alternates between
CHARGE HAS SLOWED
RETRY? (YES/NO)
1. If START / YES is pressed, the unit will
ask if you want to use the vehicle to pull in
the charge.
Selecting START / YES will prompt the
user through the slow charge procedure.
Selecting STOP / NO will resume charging.
2. Place the vehicle gear selector in park or
neutral, with the emergency brake ON.
3. Start the vehicle. Set the A/C system to its
maximum setting.
4. Press START / YES . The unit charges out
of the low-side inlet only, allowing the
vehicle’s compressor to pull the refrigerant
into the A/C system. When the charge is
complete, the display shows
EQUALIZE HOSES?
X.XX LBS (KG) CHARGED