Grounding Instructions - Ingersoll Rand CCE10 Manuel De Maintenance

INSTALLATION (CONT'D)

GROUNDING INSTRUCTIONS

This product should be connected to a grounded, metallic, permanent wiring system, or an
equipment-grounding terminal or lead on the product.
AIR LINE PIPING
Connection to air system should be of the same size, or larger, than discharge pipe out of unit. The table
gives recommended minimum pipe sizes. A union connection to the unit and water drop leg is
recommended. Install a flexible connector between the discharge of the unit and the plant air piping. Plant
air piping should be periodically inspected for leaks using a soap and water solution for detection on all pipe
joints. Air leaks waste energy and are expensive
COMPRESSOR
MODEL
CCE10 3/4" (1")
CCE30 3/4" (1")
CVE50 3/4" (1")
Never use plastic pipe or improperly rated metal pipe. Improper piping material can burst and
cause injury or property damage.
OPERATION
This compressor has been inspected, thoroughly tested and approved at the factory. For this unit to give long
satisfactory service it must be installed and operated properly.
This compressor has been designed to run at a 100% duty cycle.
Simplex units have a pressure switch that senses changes in receiver pressure and automatically starts and stops
the compressor at preset pressure limits. If the receiver pressure falls below the cut-in pressure setting of the
pressure switch the compressor will run until the cut-out pressure setting of the pressure switch has been reached.
Duplex units have lead and lag pressure switches and an automatic alternating system to evenly distribute the load
between the two compressors. The pressure switches sense changes in receiver pressure and automatically start
and stop the compressor at preset pressure levels. If the receiver pressure falls below the cut-in pressure setting of
the lead pressure switch but remains above the cut-in pressure setting of the lag pressure switch, only one
compressor will run until receiver pressure reaches the cut-out pressure of the lead pressure switch. The next time
the pressure in the receiver drops, the system automatically starts the compressor that was idle. If the receiver
pressure falls below the cut-in pressure setting of the lag pressure switch, both compressors run until receiver
pressure reaches the cut-out pressure setting of the lead pressure switch.
Units furnished with optional dual control are equipped with a needle valve, pilot valve and head unloaders to provide
continuous run capabilities. The pilot valve acts as an automatic air switch allowing air to flow from the receiver to the
head unloader mechanism, thus actuating it. To operate unit in continuous run, open needle valve located next to
pilot valve. The pilot valve is now able to sense receiver pressure. When the receiver pressure reaches the cut-out
pressure setting of the pilot valve, the pilot valve opens and air is released to the unloader mechanism. The
compressor stops compressing air and runs unloaded until the cut-in pressure setting of the pilot valve has been
reached. At this time air released from the unloader mechanism and the compressor starts compressing again.
Continuous run is recommended if motor starts exceed 8 starts/hour.
Minimum Pipe Sizes For Compressor Air Lines
(Based on clean Smooth Schedule 40 Pipe)
25' 50'
3/4" (1")
3/4" (1")
3/4" (1")
Values in ( ) are for duplex unit.
IF3266 Rev A Page 12
.
100'
3/4" (1")
3/4" (1")
3/4" (1") 1" (1-1/4")
200' 300'
3/4" (1") 3/4" (1")
3/4" (1") 3/4" (1")
1" (1-1/4")