Sullair 32 250L Series Operator's Manual page 13

indicators (one for the separator element and one
for the bearing lube filter). Located on the electrical
control box door are the stop and start push but-
tons and the hourmeter.
Refer to Figure 1-3 for functional locations of the fol-
lowing controls and indicators:
• The line (terminal) pressure gauge is connected
to the dry side of the receiver downstream from the
check valve and continually monitors this air pres-
sure.
• The sump pressure gauge continually monitors
the sump pressure at the various load and/or un-
load conditions.
• The discharge temperature gauge monitors the
temperature of the air leaving the compressor unit.
For both air-cooled and water-cooled compressors
the normal reading is approximately 190°F.
• The air filter restriction gauge monitors the condi-
tion of the air intake filter and shows red when filter
DESCRIPTION
service is required. This restriction gauge must be
reset manually (See Figure 1-5).
• The START pushbutton turns the compressor on
(See Figure 1-6).
• The STOP pushbutton turns the compressor off.
• The hourmeter records accumulative hours of op-
eration for the compressor and is useful for plan-
ning and logging service operations (See Figure
1-6).
• The separator maintenance indicator monitors
the condition of the separator element and shows
red when element restriction is excessive. This indi-
cator is automatically reset after the element has
been changed.
• The bearing lube filter maintenance indicator
monitors the condition of the bearing lube filter ele-
ment and shows red when the element should be
changed. This indicator is also automatically reset
(See Figure 1-2) .
Section 1
7