Specifications
Model 17800B Recovery/Recycling/Recharging Unit
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The longest time that can be programmed is 98.99 (98 minutes and 99
seconds).
3. Press VACUUM to start evacuation. The display counts down the time remaining.
If the message “U-HI” appears, you have 25 psi or greater of pressure at the inlet.
You must recover that pressure to continue. If necessary, press RECOVER.
4. When the programmed time has expired the vacuum pump will automatically shut
off and the display will show “CPL.”
To run the vacuum pump continuously, program the time to “99.00,” press EN-
TER, then press VACUUM. The pump will start and the display will show “CON
AUTOMATIC VACUUM.” To turn the vacuum pump off, press HOLD/CONT.
RECYCLING OVERVIEW
1. Be sure both valves on the tank are open. Press and hold SHIFT/RESET and
then press “1” to start the recycling process.
2. When the tank temperature equalizes (after about five minutes of recycling time),
purge non-condensables from the tank. To purge, use the air purge gauge to
determine the temperature of the refrigerant. Then use the pressure/temperature
chart on the top of the unit to determine the correct pressure for that refrigerant. If
the gauge pressure exceeds the target pressure by more than 10 psi, open the air
purge valve for about 30 seconds and release non-condensables from the tank.
3. Close the air purge valve and let the tank stabilize (about 30 seconds). Check the
air purge gauge again. Repeat Steps 2 and 3 as necessary during the recycling
process.
4. Close the tank's LIQUID valve to stop the recycling process. The unit will pull into
a vacuum and shut off automatically.
CHARGING OVERVIEW
Follow the manufacturer’s recommendation for charging. You must replace any oil lost
from the A/C-R system during recovery with new
oil. Dispose of waste oil in an appropriate manner.
1. Open the high side valve and, if allowable, the low side valve.
2. Press CHG and enter the weight of the refrigerant to be charged.
3. Press ENTER, then press CHG again. The display counts down to zero, then
shows the “CPL” message when complete.
Important!
You can stop recy-
cling instantly by
pressing HOLD/
CONT then
SHIFT/RESET,
but this can leave
liquid refrigerant in
the low side of the
unit. Closing the
tank’s LIQUID
valve is the recom-
mended
method.
Operating Overview