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09

08

OPERATING INSTRUCTIONS

OPERATING INSTRUCTIONS

1. Initial Purge

Initial Purge

2. Recovery Process

Open the vapor and liquid valves of
refrigeration  or  air  conditioning  system 
equipment.
Open the vapor valve of the refrigerant tank.
Turn the switch to the position START.
Press     button.
a. Open the liquid valve for liquid recovery.
b. Open the vapor valve for vapor recovery.
Turn the switch slowly to positon 2 for faster 
recovery.
When the recovery is finished, the unit gets 
to  the  required  vacuum  or  automatically 
stops by low pressure protection.

Recovery Procedure

Connect hoses correctly and firmly. (Please 
refer to the setup diagram)
Make sure all valves are closed.
Turn off the power to system equipment.

Start Operation

Note

If compressor liquid slugging occurs at position 2, 
turn  the  switch  to  position  START  until  the  liquid 
slugging stops.
If the recovery restarts after interruption of power or 
fails to start,
2.1 Turn the switch to positon START,turn on the  
      power switch, press START button for liquid 
      recovery.
2.2 Turn the switch to position 3,turn on the power 
      switch, press START button for vapor recovery.

Note

Turning  the  switch  to  position  1  gets  a  stable 
recovery of liquid with low speed of 2.6 lbs/Min.
If compressor slugging occurs at the position 1 turn 
the switch slowly to position START until slugging 
stops. Make sure the pressure is at zero, because it 
doesn’t work at 10.
There is no need to turn off the power and it can do 
the self-purge cycle automatically.

1.

2.
3.

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2.
3.
4.
5.

6.

7.

1.

2.  

1.

2.

3. 

1. Connect hoses correctly and tight according to setup diagram.
2. Open the vapor and liquid valves of manifold gauge.
3. Disconnect hose from refrigerant tank.
4. Open the output valve.
5. Turn the switch to START.
6. Press     button.
7. Turn the switch to position 2 and start purging the air out of the hoses.
8. While the input gauge getting to 15" of vacuum (-1 bar), turn the switch to position 3 to start self-  
    purge.
9. While the input gauge getting to 15" (-1 bar) again, turn the switch to position 0 to finish self-purge.
10. Connect the hose back to refrigerant tank.
11. Press     button.

Empowering you to work smarter

Empowering you to work smarter

Summary of Contents for NRRD

Page 1: ...User Manual NRRD SAVE THIS MANUAL FOR FUTURE REFERENCE Recovery Unit NAVAC Inc www NavacGlobal com MADE IN CHINA Tel Fax 1 877 MY NAVAC 877 696 2822...

Page 2: ...s properly connected and grounded If the original power supply cord is damaged choose the properly rated replacement or you may buy the replacement directly from your authorized wholesaler If the unit...

Page 3: ...ess than 30 bar 435 1 PSI After the high pressure alarm light turns off press the reset button and turn on power to restart the compressor If the high pressure protection trips please find out the cau...

Page 4: ...02A R 404A R 407A R 407B R 410A R 507 R 22 R 401A R 401B R 402B R 407C R 407D R 408A R 409A R 411A R 411B R 412A R 502 R 509 Oil less Air cooled Piston style 558 psi 38 5 bar Max Current Draw Compress...

Page 5: ...Code XS FR ES M1 C1 C2 ST TC HP Power Outlet Overload Protection Device Electronic Starter Compressor Motor Start Capacitor Running Capacitor Motor Thermal Potectors Electronic Transformer High Pressu...

Page 6: ...er switch press START button for liquid recovery 2 2Turn the switch to position 3 turn on the power switch press START button for vapor recovery Note Turning the switch to position 1 gets a stable rec...

Page 7: ...ed Start operation Warning When the electric scale shows that the refrigerant in the tank has reached 80 capacity turn the power off and close the tank valves Open the vapor and liquid valves of the s...

Page 8: ...13 12 TROUBLESHOOTING Empowering you to work smarter Empowering you to work smarter...

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