Van Air Systems AC 10-1 to 40-1 - Manual (Page 7)

PRINTED IN THE U.S.A. © 1995 VAN AIR SYSTEMS INC. 2950 MECHANIC STREET, LAKE CITY, PA 16423 PAGE 7
5.1 START UP INSTRUCTIONS
Pressurize the compressed air system. If the aftercooler was
interlocked with the compressor, the aftercooler will begin to
operate immediately. If the aftercooler was wired on a sepa-
rate electrical source, turn on the source.
Open the inlet and outlet isolation valves on the aftercooler (if
installed). Close the bypass valve. The aftercooler is ready for
operation.
5.2 OPERATING INSTRUCTIONS
The operation of the aftercooler is simple. The fan rotates,
moving ambient air across the core. The ambient air flow cools
the compressed air inside the core. The aftercooler will
automatically operate as long as electrical power is supplied to
the unit.
OPERATION SECTION 5
MAINTENANCE and REPLACEMENT PARTS SECTION 6
6.0 MAINTENANCE INSTRUCTIONS
WARNING
BEFORE STARTING INSTALLATION OR
MAINTENANCE PROCEDURES, TURN OFF
ELECTRICAL POWER AND COMPLETELY
DEPRESSURIZE THE UNIT. FAILURE TO HEED THIS
WARNING MAY RESULT IN SERIOUS PERSONAL
INJURY AND/OR DAMAGE TO THE UNIT.
NEVER REMOVE, REPAIR, OR REPLACE ANY ITEM ON
THIS UNIT WHILE IT IS UNDER PRESSURE.
NEVER REMOVE THE FAN GUARD WHILE THE
AFTERCOOLER IS OPERATING. PERSONAL
CONTACT WITH THE ROTATING FAN BLADE MAY
RESULT IN SERIOUS PERSONAL INJURY.
6.1 CORE EXTERIOR CLEANING
The core should be regularly cleaned. Accumulation of dirt or
other contaminants such as oils will greatly reduce the effi-
ciency of the aftercooler.
Normal accumulation of dirt can be removed by blowing off the
core with compressed air. If the core becomes contaminated
with oil-laden particles, it can be steam cleaned. Clean with
extreme care. The aluminum fins can be easily damaged.
6.2 CORE INTERIOR CLEANING
If the compressed air system contains excessive lubricating
fluids, build-up may occur. The interior of the core may be
cleaned to remove the deposits by circulating a mild cleaning
solution through the core. For most conditions, a mild alkaline
solution such as OAKITE or equal, is satisfactory. For extreme
conditions, it might be necessary to use a weak solution of
INHIBITED hydrochloric acid.
Turn off the electrical power supply, depressurize the unit, and
disconnect it from the air system. Circulate the solution
through the core until it is clean. Make sure that the core is
rinsed out thoroughly before returning the unit to service.
When the core is cleaned, it is important that the full character-
istics of the fouling material and cleaning agent be known.
Proper care must be taken when handling and disposing of the
solution. Always follow the instructions supplied with the
material.
CAUTION
NEVER USE SOLVENTS CONTAINING STRONG ACID
OR ALKALINE BASES TO CLEAN THE CORE.
DAMAGE TO THE CORE MAY OCCUR.
6.3 MOTOR LUBRICATION
This unit is equipped with a sleeve bearing motor. The sleeve
bearings will require lubrication at least every 6 months. Add a
few drops of S.A.E. 20 oil to each bearing.
6.4 REPLACEMENT PARTS
Replacement Cores
AC-10-1 P/N 34-0729
AC-20-1 P/N 34-0730
AC-30-1 P/N 34-0731
AC-40-1 P/N 34-0732
Replacement 12" Dia. Fan Blade
All models P/N 26-5905
Replacement Fan Guard
AC-10-1 & AC 20-1 P/N 41-0206
AC-30-1 & AC 40-1 P/N 41-0207
Replacement 1/12 HP 115v Motor
AC-10-1 P/N 34-0742
AC-20-1 P/N 34-0742
AC-30-1 P/N 34-0743
AC-40-1 P/N 34-0743
5.3 SHUT DOWN INSTRUCTIONS
To shut down the aftercooler, turn off the electrical power
source. If the aftercooler was interlocked with the compressor,
the aftercooler will automatically turn off with the compressor.
Open the bypass valve and close the inlet and outlet isolation
valves (if installed).