Ingersoll-Rand HP825WCU, Руководство по эксплуатации, техническому обслуживанию и каталог запасных частей

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Book 35393560 (12/02)
35
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If the IQ System is bypassed (Standard Operation se-
lected), the delivered air pressure will be approximate-
ly equal to the separator tank pressure. If the IQ Sys-
tem operation is selected, the delivered air pressure
will be slightly less, depending on the restriction of the
filters.
CAUTION
The compressor regulation system is adjusted to
maintain regulated pressure at the separator tank.
DO NOT adjust regulation to provide full regula-
tion pressure at the service valve when the IQ Sys-
tem is enabled. This will result in operation at ex-
cessive horsepower levels, causing overheating,
reduced engine life, and reduced airend life.
Low Ambient Option Operation
When the ambient temperature falls to the point that
the aftercooler outlet temperature is approaching
45ºF, the Temperature Control Unit (TCU), mounted
on the rear of the control panel, will automatically ad-
just the louvers to control the cooling airflow through
the aftercooler.
In the event that the unit is operating under abnormal
conditions (i.e., an enclosure door open) which would
cause excessive cooling of the aftercooler, a tempera-
ture sensor in the aftercooler outlet header will signal
the TCU to further close the louvers if the compressed
air temperature falls to approximately 36ºF or lower.
There are no user selectable or serviceable compo-
nents in the TCU. Contact Ingersoll--Rand Service if
any abnormal operation of the freeze protection con-
trol system occurs.
MAINTENANCE
Daily Maintenance:
Verify, during full--load (maximum compressed air de-
livery) that the IQ System filter restriction indicators do
not show excessive restriction. Restriction indicators
for the filters are mounted on the filter support inside
the front door, and will shut down the compressor if re-
striction exceeds recommended values.
CAUTION
Excessively restricted filter elements may cause
an increase in the amount of aerosol water and oil
carryover, which could result in damage to down-
stream equipment.
Normal service intervals
should not be exceeded.
Weekly Maintenance:
S
Remove Y--strainer screens at the bottom of the
moisture separator and both filters and clean out any
residue.
S
Verify that the orifices below the Y--strainers are not
clogged.
S
Verify that the piping from the orifice purge points to
the exhaust system is not clogged.
CAUTION
Blockage of the Y--strainers, orifices, or piping
can result in flooding of the vessels with conden-
sate. If flooding occurs, excessive condensate
may enter the air stream and could result in dam-
age to downstream equipment.
Yearly Maintenance:
The normal maintenance interval on the primary and
secondary IQ System filters is one year, or earlier if
pressure drop becomes excessive. Restriction indi-
cators for the filters are mounted on the filter support
inside the front door, and will shut down the compres-
sor if restriction exceeds recommended values.
CAUTION
Excessively restricted filter elements may cause
an increase in the amount of aerosol water and oil
carryover, which could result in damage to down-
stream equipment.
Normal service intervals
should not be exceeded.