Oil Reservoir And Primary Air/Oil Separator; Oil Cooling System; Fan Temperature Switches - Vanair Air N Arc All-in-One Power Systems 300 Operations Manual & Parts List

SECTION 2: DESCRIPTION
B
KEY DESCRIPTION
A ADJUSTABLE PRESSURE
SWITCH
B BATTERY
Figure 2-6: Adjustable Pressure
Switch
Figure 2-7: Oil Cooling System
PAGE - 24
AIR N ARC
For procedure on pressure control switch adjustment,
see Section 6.5.15.
2.2.8 OIL RESERVOIR AND PRIMARY AIR/OIL
A
SEPARATOR
The main casting of the compressor unit, which contains
the screw compressor, is also the oil reservoir and
primary oil separation unit. The initial (primary) oil
separation is caused by both changes in velocity and
direction. The main casting also contains the oil fill tube
and drain hose assembly. A separate oil reservoir is not
required.

2.3 OIL COOLING SYSTEM

System Component or
Component Group
OIL COOLING SYSTEM
Fan Temperature Switch
Compressor Spin-on Oil Filter
See Figure 2-7. The oil cooling system is designed to
provide cooling for the compressor lubricant. The cooling
system also allows for the compressor lubricant
temperature to be maintained to a minimum of
approximately 160°F (71°C). The elevated temperature
forces the moisture, which may be ingested into the
compressor system due to atmospheric humidity, to stay
in a state of vapor. This prevents the moisture from
condensing out in the system and contaminating the
lubricant.
The cooler core for the 300 Series Power System relies
on the cooling fan to suck fresh air from outside the
package across the core to cool the compressor
lubricant. The maximum lubricant temperature is
maintained by using an electric fan temperature switch.
This switch activates the cooling fan when it is required to
cool the compressor lubricant. The fan temperature
switches are set to turn on the fans at about 180°F
(82°C). In addition, the fan will run to cool the enclosure
when the enclosure's interior temperature reaches 100
°F (38°C).
The oil cooling system is composed of the following main
components:

2.3.1 FAN TEMPERATURE SWITCHES

See Figure 2-8. The fan temperature switches are
located as follows: the enclosure thermostat (100°F) on
090010-OP_r0
®
300 SERIES ALL-IN-ONE POWER SYSTEM
Manual
Section
2.3
2.3.1
2.3.2
®
Location
page 24
page 24
page 25