Van Air Systems AC 10-1 to 40-1 User Manual
Page 6
PAGE 6
© 1995 VAN AIR SYSTEMS INC. 2950 MECHANIC STREET, LAKE CITY, PA 16423
PRINTED IN THE U.S.A.
5.3 REPAIRING LEAKS
INSTALLATION
SECTION 4
4.7 ELECTRICAL CONNECTIONS
CAUTION
TURN OFF MAIN POWER SUPPLY BEFORE WIRING TO
THE AFTERCOOLER.
MAKE SURE THAT ALL USER SUPPLIED WIRING IS
PROPERLY SIZED TO HANDLE THE AMPERAGE
REQUIRED BY THE AFTERCOOLER AND ANY
ADDITIONAL EQUIPMENT.
WHEN WIRING TO THIS UNIT AND ANY OTHER
ELECTRICAL COMPONENTS, ALWAYS COMPLY WITH
THE NATIONAL ELECTRICAL CODE AND ALL
APPLICABLE FEDERAL, STATE AND LOCAL CODES.
IF THE AFTERCOOLER IS TO BE INSTALLED
OUTDOORS OR IN AN EXTREMELY HUMID
ATMOSPHERE, MAKE SURE THAT ALL WIRING AND
COMPONENTS ARE PROPERLY RATED.
VERIFY THAT THE POWER SOURCE MATCHES THE
AFTERCOOLER ELECTRICAL REQUIREMENTS
BEFORE MAKING ANY CONNECTIONS. REFERENCE
EQUIPMENT DATA TAG AND FIGURE 4 FOR
INFORMATION.
TO PREVENT POSSIBLE ELECTRICAL SHOCK, IT IS
IMPORTANT THAT THIS UNIT IS GROUNDED.
ALWAYS USE THE PROVIDED GROUNDING SCREW.
The aftercooler electrical requirements are listed on the
equipment data tag and in Figure 5. If there are any discrep-
FIGURE 5 WIRING DIAGRAM
ancies between the data tag and Figure 5, use the information
on the tag.
Remove the cover from the electrical junction box on the
aftercooler motor. Using FIGURE 5 as reference, make the
necessary wiring connections. Several ways to wire the unit
are listed below. Make the connections for the pertinent
application(s).
1. DEDICATED POWER SUPPLY AND DISCONNECT
Install a properly sized fused disconnect before the
aftercooler.
Make the necessary wire connections and re-install the
junction box cover.
2. INTERLOCKED WITH COMPRESSOR MOTOR STARTER
The aftercooler can be interlocked with the air compressor
starter. This allows the aftercooler to operate only when the
air compressor is operating.
If a set of auxiliary, normally open contacts is available on
the air compressor magnetic starter, make necessary wiring
connections from the contacts to the aftercooler.
If a set of auxiliary contacts is not available, use a properly
sized contactor. Wire the contactor's holding coil in parallel
with the air compressor starter holding coil. Make the
necessary wiring connections from the contactor to the
aftercooler.
Re-install the junction box gasket and cover.