VMAC - Vehicle Mounted Air Compressors
VMAC Technical Support: 888-241-2289
VMAC Knowledge Base: www.kb.vmacair.com
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If an air receiver tank will be used with this system, a check valve
(not supplied) must be installed to prevent damage to the system.
Once a check valve is installed, pressure in the air receiver tank will
not be relieved when the compressor system blows down. This is
normal operation.
Prior to performing any service work on the system, discharge any
stored air in the air receiver tank.
The VMAC compressor system will automatically depressurize when it is shutdown,
therefore the hose from the VMAC Air/Oil Separator Tank (AOST) to the air
receiver tank must have a check valve installed. This prevents blow back and
moisture from the receiver tank entering the AOST (Figure 129).
Figure 129 — Air receiver tank
Install the line to the receiver
tank as high as possible
Air Receiver Tank
Air Receiver Tank
AOST
Check valve
