Specifications
8
VAPOR RECOVERY
P
ROCEDURES
STEPS:
1. Turn off all electrical or mechanical power to the refrigerant device to be evacuated.
2. Make proper hose connections: Connect refrigerant hoses to recovery cylinder,
Fluoromizer, and A/C system as shown in Figure 1. NOTE: You must use an external
filter drier in the suction line in order to meet the conditions of the unit warranty.
Caution: If the 80% shutoff cord is not used, a scale must be used to monitor the
refrigerant level in the recovery cylinder.
NOTE: Although the 3600-R410A was designed to handle liquid slugging, pumping
large amounts of liquid over extended periods of time will reduce the life of the
compressor. If large amounts of liquid are present, it is recommended that you use the
liquid push - pull method of recovery prior to vapor recovery operations. (See Figures 3
& 4).
3. Place the inlet and purge ball valves in the “RECOVERY” position and the outlet
valve is in the “OPEN” position. Open the DOT recovery tank liquid valve. (See
Figure 2).
4. Turn the system switch to the “ON” position. The LED status display will be green.
5. Regulate the inlet port ball valve when liquid refrigerant is present.
WARNING: A “knocking” sound coming from the compressor indicates too much liquid
is entering the compressor. The inlet ball valve must be regulated as shown in the
shaded region until this knocking sound stops, otherwise compressor damage could
occur. Pumping liquid when the compressor is knocking will damage the compressor
and will reduce the compressor life and will void the compressor warranty
.
6. Monitor the LED status display. The unit will shut off automatically when the proper
vacuum level is achieved and the status display LED will turn off.
GREEN
Indicates that the power switch is ON and the compressor is
running.
LED OFF Indicates that the unit has shut down because the system being
evacuated has reached 13" HG. (the evacuation is complete).
Check the suction pressure to verify that the system being
evacuated is down to at least 13" HG vacuum. Turn the system
switch to the OFF position. Wait 5 minutes. If the inlet pressure
rises above 0 psig. Repeat steps 3-6. If the inlet pressure remains
below 0 psig, close all valves and disconnect the hose from the A/C
system. NOTE: A small amount of inlet pressure may be needed to
reset the vacuum switch, this is normal.
Red LED Indicates that there is a high-pressure condition that must be
corrected. Check for restrictions or a full recovery tank. Correct the
problem and turn the system switch OFF to reset the system.
Repeat steps 3-6.
Red LED Indicates that the recovery tank is full (if the 80% automatic shutoff
option is installed). Change the recovery tank and repeat steps 3-6.
7. Purge the system by positioning the inlet and purge ball valve in the “PURGE”
position (both pointing DOWN). This should be done with the unit off. If the valves
are turned while the unit is running, the system may shut off either on high-pressure or
vacuum. If the Fluoromizer is manually or automatically turned off before the evacuation
is complete, repeat steps 3-7. NOTE: If the circuit breaker trips, wait 5 seconds, reset
circuit breaker and go to step 3. If the compressor thermal overload trips, wait 16 to 30
minutes before restarting.