Document No 7214-D0001-01
7
Mobile Energy Australia Pty Ltd
39 Dulacca Street, Acacia Ridge QLD 4110 Australia
ABN 98 674 578 946
P: +61 7 3273 6803
E:
www.mobileenergyaustralia.com.au
5.
INSTALLATION
The compressor is a rotary screw type driven by either a petrol or diesel engine. Compression occurs when
inlet air (at normal atmospheric pressure) enters a chamber where it is trapped between the rotating rotor
lobes. A lubricated pitch line provides sealing. As the lobes mesh, they reduce the volume of the air
(compression).
The system has a two-stage air/oil separator. The first separation stage consists of baffles, which perform
separation through gravity. The second stage uses a special separation element (a spin-on coalescing
filter), which delivers mostly dry oil free air to the outlet.
A paper-type replaceable air filter is used to filter the air coming into the compressor intake valve. A spin-on
type oil filter is used for oil filtration after the oil passes through the cooler and is returned to the
compressor.
Pressure regulation is achieved by adjusting the pressure regulator valve mounted on the compressor body
near the intake valve. The system pressure is set during final testing to 150psi if any air flow is required the
engine speed will increase to full RPM (+/-3400 RPM) and fill the tank to 150psi. If no air is used the engine
speed will drop to +/- 1200 RPM and be on standby until more air is required.
The compressor air intake is protected by a paper-type replaceable air filter, and a spin-on type oil filter for
the oil side and a coalescing filter for final oil removal from the air.
Safety features included in the compressor are:
▪
150 PSI relief valve in separation manifold,
▪
blow-down valve to discharge system pressure on shutdown,
▪
Over temperature safety sensor in the compressor oil
▪
Over pressure mounted at the minimum pressure valve,
Do not disable or bypass the over-temperature shutdown circuits. Failure of the shutdown system
could result in equipment damage, injury, or death.
An oil cooler maintains the operating temperatures in an optimal performance range. This helps to increase
system durability.
Mounting the Compressor Unit to Vehicle
Before starting the installation, have a quick overview of the requirements. Some of these points will be
dealt with in more details further on in this text. Things that should be considered before installation begins
are as follows.
1.
The unit should be installed in an open area.
2.
The unit needs to be properly secured to the vehicle with rubber isolators and bolted down.
3.
The unit must be mounted in such a way that sight level glass for compressor oil level can
be checked easily.
4.
It should be possible to service the unit easily without having to remove and reposition the
unit.
5.
The unit should be protected from excessive exposure to the elements and possible
incidental damage from other operations.
6.
The unit should be installed in an area away from heat sources such as engines, exhaust
systems or other components that generate heat.
7.
The unit should not be installed in a location where it will be exposed to high contamination
levels or combustible gases.
