Compressor Air Inlet System; Instrument Panel Group - Sullair LS-12 Operators Manual And Parts Lists

Section 2
DESCRIPTION
Figure 2 ---6 Compressor Air Inlet System
restriction gauges, along with START and STOP
pushbuttons and an hourmeter.
Refer to Figur e 2 --- 7
dicators and controls:
The line (terminal) pressure gauge
and 100HP
S
is connected to the dry side of the receiver down-
stream from the check valve and continually moni-
tors the air pressure.
S The sump pressure gauge continually monitors
the sump pressure at the various load and/or un-
load conditions.
The discharge temperature gauge monitors
S
the temperature of the air leaving the compressor
unit. For both air---cooled and water---cooled com-
pressors the normal reading is approximately
180_F (82_C) when the ambient temperature is
less than 80_F (27_C).
S The air filter restriction gauge monitors the con-
dition of the air intake filter and shows in the red
zone (20" to 30" water [51 to 76 cm]) when filter ser-
v ic e is r equir ed ( s ee Figur e
12
f or l oc a tions of the fol l owing in -
2 --- 6 ) .
S The START pushbutton turns the compressor on.
S The STOP pushbutton turns the compressor off.
S The hourmeter records cumulative hours of op-
eration for the compressor and is useful for plan-
ning and logging service operations.
The separator maintenance gauge monitors
S
the condition of the separator elements and shows
in the red zone when the element restriction is ex-
cessive.
The fluid filter maintenance gauge monitors
S
the condition of the bearing filter element and
shows in the red zone when the element should be
changed.
S The red light on the instrument panel indicates
when power to the compressor is supplied.
S The green light indicates when the compressor is
running.
S The optional dual control package is supplied
with an amber auto mode indicator light to indicate
that the unit is running in the automatic mode. A
position selector switch provides selection be-
tween hand operation and automatic control.
Figure 2 ---7 Instrument Panel Group