Purge Procedure
It is necessary to clear out the unit' s condenser of residual
refrigerants. The unit utilizes a purge or
self-clearing feature. Note: Failure to do this process will
lead to cross-contaminated refrigerant.
1. Once recovery is done, turn the RECOVER/PURGE valve to
the PURGE position
2. Push the START button. The Indicator LED will turn
solid GREEN.
3. Turn the INLET valve to the PURGE position
Liquid Push-Pull Recovery
The LIQUID PUSH-PULL RECOVERY operation is used on large HVAC&R Systems containing more than 20KG of
liquid refrigerant. The unit must have an access valve that is located in the part of the system were liquid refrigerant is
present.
The following are step by step instructions on how to operate the recovery unit in LIQUID PUSH-PULL RECOVERY.
1. Place a Refrigerant Storage Tank on a scale to determine the current weight of the tank.
DANGER: Make sure the storage tank has enough capacity to recover the refrigerants. See Page 5 for Tank Capacity
and safety issues on refrigerant storage tanks.
WARNING: Liquid recovery rates can be very fast. Overfilling a tank can happen quite quickly if the unit is not
monitored properly.
2. Connect refrigerant hoses as shown in diagram below.
3. Turn the OUTLET valve to OPEN. Open Refrigerant Storage tank valve.
4. Turn the RECOVER/PURGE to PURGE position
5. Plug in the unit into 115v or 230v power source. The Indicator LED will flash GREEN.
6. Push the START button. The Indicator LED will turn solid GREEN. Once the unit' s compressor starts, turn the
INLET valve to the OPEN position.
Monitor the electronic scale for weight gained during recovery and ensure the tank is not being overfilled. If
approaching tank full conditions, push STOP button and close tank valve. Replace tank with empty one. Push START
to resume recovery operation.
7. Monitor the scale to see if liquid refrigerant is no longer being pushed into the refrigerant storage tank.
Close Tank Vapor Valve.
8. Once the INLET pressure drops below 10" hg vac, the unit will automatically shut off after 2 minutes and the
Indicator LED will turn solid YELLOW.
LIQUID PUSH-PULL Recovery is now complete; proceed to Direct Vapor Recovery on page 8 to complete the
recovery process.
HVAC
SYSTEM
JB INDUSTRIES • F6-BOOST Operating Manual • 630.851.9444 • sales@jbind.com
Vapor Service Port
Liquid Service Port
4. Monitor the INLET gauge.
5. The unit will automatically shut off after 2 minutes* when the
internal condenser pressures drops below 10" hg vacuum.
The Indicator LED will turn solid YELLOW.
6. Close all tank valves, hose valves and the unit' s valves.
Disconnect all hoses.
Purge is now complete. The unit is ready for the next refrigerant.
*Note: Purge can be manually stopped before the 2 minute timer
automatically turns off the unit.
OUTLET
INLET
Vapor
Liquid
Valve
Valve
Storage
Tank
Electronic Scale
9