Components of Firestone Air Suspension Systems
Control Panels
Control panels let you control air-spring pressure from the comfort of your vehicle. Provide readings of current air pressure in your springs, allowing constant monitoring of your inflation process Conveniently mount to the dash of your vehicle
Electric activation Standard face gauge that uses needles to indicate air pressure When the control panel switch is activated, it turns on the air compressor, which begins to "air up" the springs Systems that use electrical activation do not require an air tank
Requires air line to be run into the cab for pressure monitoring
Pneumatic activation Standard face gauge that uses needles to indicate air pressure When a switch on the control panel is activated, it opens a valve, allowing compressed air to flow from the air tank to the air springs Compressor is activated automatically when the pressure switch senses a drop in pressure in the air system
Requires an air tank Inflates springs quickly because it uses air stored in an air tank Requires air line to be run into the cab for pressure monitoring
Digital control panel Has a digital screen that displays air-spring pressure reading Digital display makes it easy to read air spring pressure When a control panel switch is activated, it activates the solenoid valve, which controls air flow to the air springs
Does not require air tubing to be run to the cab Can only be purchased in a Digital Air Command Kit
Single control Inflate and deflate 1 set of air springs
Dual control Inflates 2 springs individually or 2 separate sets of springs (for example, 2 front springs can have different pressure levels from 2 rear springs on the same vehicle)
Quad control Inflates and deflates 4 individual springs Pneumatic activation only
Air Compressors
Pressure at which the compressor operates (pounds per square inch, or psi) Standard duty: operate at lower psi (120 psi - 130 psi) Heavy duty: operate at higher psi (145 psi - 150 psi)
The volume of air the compressor moves per minute (cubic feet per minute) Typically, the more heavy duty the compressor is, the more air it can move The volume of air a compressor can move depends on the size of the cylinder within the compressor; the larger the piston, the more air that can be moved The higher the volume of air, the faster your air springs can be inflated
Standard duty: move less air relative to heavy-duty compressors Heavy duty: have larger cylinders, allowing them to move large amounts of air
The type of compressor that will provide optimum performance for your setup depends on: How often the air pressure in your springs is changed How often the air springs are in use Weight on the springs Size of the springs
Standard-duty compressors For moderate air-spring usage (for example, weekend towing or RVing)
Heavy-duty compressors For use with air springs that are adjusted many times per week (for example, heavy-duty towing, heavy-duty trucks, construction vehicles or full-time RVing)
Super-heavy-duty and ultimate-duty compressors For heavy-duty trucks that often change loads For setups that use air tanks to inflate other accessories, as well as their air suspension
Air tanks ranging from 1/2-gallon capacity to 20-gallon capacity are available Used in conjunction with air compressor
Provide compressed air for air suspension system Allow for quicker inflation of air springs because air is coming from an already-full reservoir
Stored air can be used to inflate other accessories and tires
Up to 1-gallon tanks Compatible with standard-duty air compressors
Up to 3-gallon tanks Compatible with high-, heavy- or super-heavy-duty air compressors and even some that are stronger
Up to 5-gallon tanks Compatible with ultimate-duty compressors and some heavy-duty compressors
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