INFICON Vortex AC Refrigerant Recovery Machine 115V - Manual (Page 8)

6
Vortex AC Operating Manual
Connect the AC Power cord to a circuit that is protected by a 15 amp breaker.
Use an extension cord only when absolutely necessary to perform the service
— be sure it is the minimum length required, that it contains a safety ground
wire and that it contains wires sized 16 AWG or larger.
When recovering refrigerant, it may be necessary to throttle the Manifold
Gauge control valve(s) or the Vortex AC’s INLET Valve when a significant
amount of liquid is present. This is required if a loud “knocking” sound is heard
from the compressor. While the Compressor in the Vortex AC is tolerant of
liquid, no compressor will run on 100% liquid without damage for more than a
few minutes. In addition, a liquid “slug” can cause the High Pressure shutoff to
activate, thus adding time to the process. It is thus important to open the valves
slowly and monitor the process carefully. Should the compressor start to
“Knock”, rotate the INLET valve clockwise until the “knocking” stops. This can
also be accomplished by adjusting the Manifold Gauge valves. Exercise care
to ensure that the compressor is not damaged in this way as it will void the
warranty.
If the Tank Full shutoff is not in use, it is necessary to use a
Refrigerant Scale to ensure that the tank is not filled to more than 80% of
its capacity by weight. When operating in the NORMAL RECOVERY or
PUSH-PULL mode without the tank shutoff, it is possible to overfill the
tank. Check the tank weight before transporting if you are not sure.
OVERFILLED TANKS CAN RUPTURE EXPLOSIVELY!
3.2 Normal Recovery Operation
1
Connect all cables and hoses as described in section 3.1 and as shown
in Figure 3-1 below. Ensure that they are tight and routed in such a way
that they will not interfere with the operation.
Figure 3-1 Setup Procedure For Normal Refrigerant Recovery