Flash Gas Condenser Installation Instructions

Refrigeration Procedure:

1. Verify system is running properly.

2. When system is at or near set-point, adjust evaporator superheat between 17-19*F

Note: The superheat must be adjusted to get maximum savings from the FGC.

 

3. Pump the system down into the Receiver.

4.  Mount the Flash Gas Condenser (FGC) close to the TXV.

       A. On unit coolers there is normally enough space on the front of the coil side, under the unit cooler side cover.

       B. On slim height unit coolers you may have to attach the FGC to the ceiling of the cabinet and notch the side cover to allow line access and insult the lines.

       C. On "A coil" installations, you will want to mount the FGC to the "A coil" housing just in front of the coil.

       D. On Thermo King/TransiCold Units, the FGC can be mounted under evaporator coil cover.

5. Separate the connection on the outlet side of the TXV.

Note: If the evaporator coil is equipped with a refrigerant distributor, check to see if the distributor has an orifice. If so, the orifice must be removed for the FGC to operate properly.

6. Connect one line coming out of the FGC to the outlet side of the TXV and the other line coming out of the FGC to the inlet of the refrigerant distributor.

        A. If FGC is installed outside the evaporator, insulate copper lines coming in and out of the FGC

7. Vacuum the low side of the system.

8. Release the charge and start the system up and check the site glass if provided to make sure the system is full of refrigerant.

9. It is advised to allow the FGC to run overnight to allow all of the PCM in the chamber to stabilize before trying to collect post energy consumption data.  This runtime before testing will allow you to see the total reduction in energy consumption the FGC will achieve.

HVAC Procedure:

1. Check system and pressures to make sure properly charged and running correctly

2. When system is at steady state, increase the evaporator Superheat between 16-18*F

3. Pump down refrigerant into receiver.

4. Mount FGC close to the TXV

5. Separate the connection on the outlet of the TXV

    a. If the coil is equipped with a refrigerant distributor - Check to see if there is an orifice. If there is, IT MUST BE REMOVED TO OPERATE CORRECTLY.

6. Connect one line coming out of the FGC to the outlet side of the TXV and the other line coming out of the FGC to the inlet of the refrigerant distributor.

7. Insulate any lines exposed to ambient conditions to protect from freezing. 

8. Vacuum the low side of the system

9. Release the charge and start the system

10. The PCM will take 6-8 hours of runtime to freeze and stabilize. Data collection should take place after this occurs.

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