Q: How much current does it draw?

A: For the HP1000, 150 A average and 200 peak. The XD2000 motor is more efficient, 130 A average and 180 peak.

Comment: It draws too much current.

Response: No question it draws a lot. But keep in mind that although it draws 5 times what a Thomas 1/3 HP draws, it is also 5 times faster so you only use it for a fraction of the time. The overall power consumed is about the same, and this is true for all dc compressors, even for single compressor systems vs. multiple compressor systems.

Q: Do I need a high output alternator or dual battery setup?

A: Not necessarily. Your system needs to be in top shape, and certainly more power means more capability. We definitely recommend deep cycle/starting construction batteries such as Odyssey (www.odysseybatteries.com) or Optima’s yellow top.

Q: How do I run it off 24Vdc?

A: Three choices:

1. Two batteries in series, charged by a Street Charger

2. Install a dual output alternator from Chuy’s Auto Electric (tel 323-264-1704) or from Mean Green, use one output as primary for the vehicle, and the other as aux with a second battery, and wire this in series with the primary

3. Install a Mobi-Arc on board welder which is capable of delivering 18 or 24 volts (or 36 or 48 volts for welding purposes) to our compressor from a 12 V alternator, while running only.
Choice #2 and 3 are expensive ($800+), but better. Choice #1 is about $350. We do not recommend simply placing two batteries in series without the ability to charge both at the same time. One battery will become discharged past the deep discharge point very quickly.

Q: Do I need a high output alternator or dual battery setup?

A: Not necessarily. Your system needs to be in top shape, and certainly more power means more capability. We definitely recommend deep cycle/starting construction batteries such as Odyssey (www.odysseybatteries.com) or Optima’s yellow top.

Q: What is the duty cycle?

A: 32% for the HP1000 (about 19 minutes out of an hour for the first hour), and 90% for the XD2000 (54 minutes out of an hour), at 12Vdc operation. For most applications, the HP1000 has more than enough duty, again because it is so fast - it can typically inflate a dozen 35x12.50R15 tires from 15 to 30 psi without stopping, and on an air suspension vehicle can get all four corners of a typical truck all the way up and down about 20 to 24 times in 12 minutes without stopping. The XD2000 can inflate about fifty 35” tires or get the average truck up and down about 100 times in an hour without stopping.

Q: Does is blow a lot of oil?

A: Some, but because we use new compressors and vent the crankcase, it is very minimal. If the application requires oil free air, like painting, use a coalescing filter. In any case, check the oil level frequently.

Q: Where do I mount it?

A: The nice thing about DC compressors is…Anywhere! In front of the grille, in the bed, on top of a wheel well in a Jeep, behind the rear seat, in a tool box or utility bed compartment with room to spare, under the bed if you relocate the intake filter and crankcase breather to a dry location with hoses and barbs, make it portable by dropping it in a 40mm ammo can, weld the base plate to a piece of receiver material and slide it into a hitch.

Q: Can it get wet?

A: Yes, if you relocate the intake filter and crankcase breather to a dry location with hoses and barbs.

Q: Is a tank necessary?

A: It will turn a ½” impact over at about 70% capacity under load without a tank. For an Ingersoll-Rand IR231 gun that has a peak torque capacity of 450 ft/lbs, that means it will yield around 300 without a tank, at 12V. At 24V, the gun will deliver 100%. Hungrier tools will need a tank, so will air suspension systems to get up fast. But you will not be able to fill tires any faster with a tank using this compressor.

Q: How long will it last?

A: Make sure it always has oil and it should last 10 or 20 years, a least 2500 hours.

Q: Warranty?

A: One year.

Q: How long will it take to do the job I want?

A: At 12 Vdc operation, it is about as fast as a 3 or 4 HP shop air compressor.

Q: How loud is it?

A: Loudness is pretty subjective. Because it has a much larger displacement than other DC compressors, it turns over slower yet still delivers more power. It tends to be quieter than most, at 12 Vdc operation anyway. You can be in the same room with one and have a conversation at normal level.

A discussion about tanks. Hopefully this will dispel some of the misinformation about using these devices.

A Tank Will:
Allow a compressor to start less frequently, but it will have to run for longer periods when it does. Size matching is important.

Allow the use of some extremely hungry air tools that would otherwise not be possible. Although Oasis compressors will operate ½” impact wrenches directly form the compressor – at about 70% of the tool’s capacity at 12V – the use of ¾” or larger impact wrenches or die grinders, sanders, etc, do require a tank. Smaller compressors absolutely need a tank to drive any air tool. Rule of Thumb: the smaller the compressor, the more capacity is needed as long as the tank is not too big for the compressor to handle!

Allow an air suspended vehicle to get up extremely fast.

A Tank (or a larger tank) Will Not:
Make a compressor have to work any less to do a job. If you take air out of a tank and put it in a tire, the compressor has to put the same amount of air back into the tank as if it put it into the tire directly. To perform a specific task, a compressor will have to turn over the same number of revolutions whether you use no tank, a small tank, or a large tank.

Allow tires to be inflated any faster than the compressor alone can do – at least for an Oasis compressor!

A More Efficient System:
Since our compressors are so fast, it will take longer to empty a 6 gallon tank with an Oasis compressor, than a 20 gallon tank with any Viair, Blowjax or Thomas compressor, because the recovery rate of our compressor is so low. Let’s face it, space is at a premium on any vehicle. So why not get rid of the multiple compressors, and/or tanks, and their associated plumbing? By keeping your air system simple, you will have higher performance and fewer problems. Less components mean fewer parts to go wrong, reduced possibility of leaks, and much easier installation!

Less is more.