Top Compressors Interview Questions Part – 3
What Voltage Do I Run On?
It depends on the size of Compressor. Most Homeowner sized small compressors are built to run on a single 110V Outlet. As you get into larger models, many compressors offer the choice between 110 to 460 voltage.
Will My Compressor Run On A Generator?
The compressor should be able to run given the proper requirements, however we recommend not using a compressor with a generator. Generators have fluctuations in power, and because a compressor needs constant voltage to be able to run, it is generally best not to use a generator if no power is available.
What Happens When Water Stays In My Compressor?
Compressor tanks are made of steel, which means if water is left in the tank, rust will start to accrue. Depending on the severity, contact your local service center about the best way to eliminate the problem. One place to start would be to look into purchasing an air dryer, to help eliminate the problem.
What Happens If There Is Water In My Lines?
Generally this is caused by two problems – either a failed condensate trap or a failed or undersized air compressor dryer. To solve the first problem, you will need to either clean the water trap or simply replace it. The second problem is a bit trickier, as you would need to repair or replace your air dryer with something larger (unfortunately, this can be a bit pricy).
What Size Of Hose Should Be Used?
This will depend on the type of compressor that you have. The two most common sizes are 1/4″ and 3/8″. Check your compressor manual, or give us a call to help find the right size to use.
Generally, the larger the compressor means the larger size of diameter you can use. Most homeowner compressor manufacturers would recommend a 1/4″ hose diameter.
What Is The Maximum Hose Length I Should Use With My Compressor?
This will also depend on the size of compressor and CFM required. The Maximum hose length is one of the most open ended questions related to air compressors. For a small homeowner unit, it would be smart not to exceed 150′. For a shop or industrial compressor, contact your local installation provider or give us a call to help figure out your maximum length.
How Much Air Will I Need To Power My Air Compressor Tool?
Generally, most air tools will take around 70-100 PSI, and will consume less than 10 CFM, however consult the manual or manufacturer of your tool for exact air requirements.
How Often Until A New Compressor Is ‘broken In’?
Air Compressors do not need to be broken in. Check for any leaks or malfunctions during the first start-up, but after that you should be ready to go.
What Is A Good Tank Size?
The tank size you will use will depend on the amount of air that you need stored. A benefit to a larger tanked air compressors is that the motor will not start and stop as often as a smaller tanked compressor. However, if you do not believe that you will use a good amount of air, it may be smarter and cheaper to use a smaller tank.
What Is The Difference Between A Rotary Screw Compressor And A Reciprocating Compressors?
A rotary screw compressor is one that utilizes two intermeshing helical rotors to trap a volume of air, then compress it to a higher pressure. Rotary screw compressors can be run at lower temperatures for 24 hours per day, 365 days a year.
A piston compressor (aka reciprocating) uses pistons driven by a crankshaft to deliver air at high pressure.
Will My Small Homeowner Air Compressor Be Able To Handle An Extra Tank?
It depends on whether or not you have a continuous duty air compressor or not. A continuous duty compressor means that it is able to run for long periods of time (aka continuously). This type of compressor will not have any problems running a larger spare tank.
If it is not continuous duty then it might have a tougher time. Depending on the size of your machine and the receiver tank, it should be able to handle it. Just be sure that you give it time to cool off when filling the tank, otherwise you would be going overboard.
Why Does My Compressor Leak Air When The Compressor Shuts Off?
Most air compressors have a one way check valve between the compressor pump and the air receiver. When the compressor shuts off the check valve prevents the high pressure air from traveling back from the receiver to the pump.
This allows for an unloader valve to release the pressure on the pump to atmosphere to allow for easier startup. The unloader system can be of several different designs. Two of the more common types are pressure switch mounted or centrifugal mounted on the end of the crankshaft.
Why Does The Safety Valve On My Tank Blow Off?
This is caused by a pressure switch improperly installed, set too high or malfunctioning. Safety valves do not normally fail on their own.
Why Doesn’t My Air Compressor Produce As Much Air As It Used To?
The most common cause is bad valves. It is also important to check your entire system for higher air consumption or leaks.
Why Compressor Shuts Down On High-temperature?
If your compressor trips on over temeprature, it could be any of the following:
Ambient temperature too high or not enough ventilation.
Too low oil level.
Wrong type of oil.
Dirty oil cooler.
Thermostatic valve not working.
Dirt / obstruction in oil lines.