Mastercool 69360 TWIN TURBO REFRIGERANT RECOVERY SYSTEM - Manual (Page 3)

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check for proper operation of system. Best operation of the system is with inlet valve OPEN and
automatic pressure regulating valve controlling flow conditions.
11. System has automatic vacuum shut down switch. After recovery is complete system will turn off when
inlet pressure reading is about 14 inches of mercury below atmospheric pressure. When system shuts
down automatically, turn inlet valve to CLOSE position and turn power switch off. Recovery is now
complete.
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RECOVERY SYSTEM PURGE
1. Turn off power switch. Turn inlet valve to PURGE position. Turn center valve to PURGE position. Make sure
outlet valve is in OPEN position. Start System.
2. System will run until vacuum switch shuts System off automatically. Purge may take a few minutes as
some liquid refrigerant may be in the Recovery System. The liquid must become vapor, which may
require some time.
3. Shut OFF Recovery System. If System is to be used with the same refrigerant next operation, shut outlet
valve and disconnect outlet hose. If venting of system is required, disconnect outlet hose to relieve
residual pressure.
4. The inlet port has a fine screen filter. Remove inlet nut and clean screen filter after every use. A clean
filter is very important for the proper operation of the System. Replace filter dryer whenever plugged or
contaminated.
TO DRAIN RECOVERED OIL
CAUTION! Do not cap the open bottle neck! The neck must remain open to vent pressure.
NOTE!
The oil separator capacity is approximately 1.5 oz which can cover 8-10 normal
recoveries. However, some systems deposit more oil in the separator due to high
pressure or excessive oil in the system. It is recommended to drain oil after each use of
the recovery machine.
1. Check pressure on recovery machine inlet pressure gauge. Pressure must be below 10 PSI (.7 Bar), but
above 2 PSI (.1 Bar).
2. Insert short yellow hose into the “plastic bottle with two openings” which is supplied. Carefully attach the
short yellow hose to the oil drain fitting on the recovery machine. As hose is tightened on fitting, oil will
flow into container. (Hose is equipped with a depressor which will open core valve in oil drain fitting).
3. When oil has drained completely, disconnect the hose from the system. Unscrew the cap/hose from the
bottle and dispose of the oil into an environmentally approved container.
MAINTENANCE REQUIREMENTS
1. Replace filter if sight glass indicator is red/orange in color. The color change may be green/blue for dry