FAQ

Pre-installation Notice
Air-Zenith strongly recommends the installation of any of Air-Zenith products to be done by a certified mechanic. CAUTION: Please disconnect your vehicles battery ground connection before you begin your installation. Be sure to wear proper eye and hand protection.
Do I need a relay?
Every compressor must have its own relay. A 80A heavy duty relay is required for every Air-Zenith compressor.
Do I need more than one pressure switch?
A single pressure switch can control ALL relays. NOTE: Never directly connect your pressure switch to your compressor. A pressure switch MUST connect to a relay. Think of a relay as a floor jack for a vehicle. If you had to lift a car by hand everyday it would simply wear you out. But if you use a jack to relay your control to lift the vehicle you only have to do a small amount of work and you can do this for much longer. Same principle here the pressure switch will tell the relay when to turn the compressor on or off without any harm to the pressure switch.
How do I connect ground wires?
Find a suitable location to ground your compressor. You will want a place clear of paint and debris. (You can lightly sand away body paint if needed) Drill a mounting hole for your fastener. (CAUTION: Check below where you will be drilling for any obstacles, wires, or fuel lines.) Now attach your ground and apply a light coat of grease or paint to keep the connection clean.
Do I need to add oil to the compressor?
Your air compressor is equipped with a permanently lubricated oil-free piston. Never try to lubricate the compressor with any lubricant such as motor oil or WD-40.
Can I run my compressor when engine is off?
To prevent unwanted discharge of your vehicle's battery it is strongly recommended that you keep the engine running while operating the compressor.
Post Installation Notes
During compressor operation and immediately after DO NOT touch the compressor or leader hose with your bare hands. These surfaces can reach extreme temperatures that can burn...