Wiring To Air Compressor - Johnson Controls A-4400 Series Installation And Maintenance Manual

Wiring to Air
Compressor
Wiring may be run through the load side of the air compressor disconnect
switch ahead of the Pressure Electric (PE) switch, as illustrated in
Figure 4. Doing so will allow continuous A-4400 operation whenever the
disconnect switch is closed, while control over the air compressor is
retained by the PE switch.
Note: The air dryer motor voltage must match the air compressor motor
voltage in order to wire the unit as illustrated in Figure 4.
115 VAC
60 Hz
Air Compressor
Disconnect
Figure 4: Single-Phase Air Compressor Motor
Air
Dryer
Pressure
Switch
Air Dryers—A-4400 Series Technical Bulletin
Air Compressor
9