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NAVAC NRDDF User Manual page 5

Recovery unit for flammable refrigerants
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Start/Stop: Starts and Stops recovery unit.
LP Switch: Hold for 3 seconds to switch between LP1, LP2, Lp3.
Units/Zero: Press to change units to InHg, Kpa, Psi, Kg/f, Bar, Mpa.
Hold for 3 seconds to zero out readings.
Cancel Alarm: Hold for 3 seconds to mute recovery unit.
LP1: (Auto shutoff with manual restart)
if the inlet pressure is lower than -20inHg for 20 seconds, the unit will shut down.
"LP Cutoff" will be displayed.
When LP ≥ 0 inHg you must press START to restart the recovery unit
LP2: (Auto shutoff with automatic restart)
if the inlet pressure is lower than -20inHg for 20 seconds, the unit will shut down.
"LP Cutoff" is displayed.
When LP ≥ 0 inHg the unit will restart automatically.
LP3: (Continuous Run)
The recovery unit will run continuously, no matter what the level the input pressure
is (LP)
O.F.P Cutoff: Will light up when the recovery cylinder is 80% filled, or if the OFP cable is
opened. The machine will stop running.
LP Cutoff: will light up when low pressure switch is activated for more than 20 seconds
below -20 inHg.
HP Cutoff: Will light up when high pressure switch is activated above 560 Psi.
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Restart: It will flash after an error has occurred and settled. Pressing "START" will resume activity.
Fault: Error Codes
E1: The pressure sensor is disconnected
Fault 2: Input voltage is too low
Fault 3: High input voltage
Fault 4: Overcurrent protection
Fault 7: Temperature protector open
Fault 8: Motor stalling
Mute: Audible alerts and beeps are turned off.
Fan: This icon rotates while the machine is running. When the machine stops, the icon
stops rotating.
.
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