VSD Rotary Screw

The Benefits of VSD DRIVE and of our German Rotary screw pump is 24 hours/7 days/week operation at 100% duty cycle for 70,000-100,00 hours use depending on the pressure the unit is set at -- the lower the pressure the longer the pump life and less bearing wear.

This unit is Eaton Compressor’s newest and latest technology in a rotary screw compressor for the compressed air industry. This rotary screw machine gives you a HUGE ENERGY SAVINGS on your electric bill. This unit has the same proven years of Premium Quality in our Rotary Screw air compressor, but now has added a Variable Speed Frequency Drive

. This unit has name brand Telemacanique electrical components. The variable speed unit changes the Frequency from 60 cycles down to 18 cycles. The electricity coming into your home and business is 60 cycles. This electric motor has a frequency up to 60 cycles or 60HZ -- both mean the same thing.

When 60 cycles of electricity are inducted into this electric motor, the motor RPM is a low 1750. However, the Variable Speed Inverter Drive

will change the 60HZ or 60 cycles of electricity from 60 cycles down to 18 cycles, depending on the pressure. The whole idea of energy savings with this unit is the lower the cycles, the lower the amp draw coming from your electric motor. The electricity amp draw that an electric motor is using determines what your electric bill is. The lower the amp draw that your electric motor is using, the lower your electric bill will be!!

In a shop that runs a HIGH + LOW demand of air needs, the benefits of the Variable speed unit are tremendous!!! The speed of the electric motor is controlled off of what pressure the unit is producing under your air demand. PLC – Programmable Logistic Controller – Or just call it the computer or the Brain of this machine--this controller can be adjusted to what pressure range that you need as low as 85 PSI on the cut-in and 145 PSI or lower on the cut-out pressure. The Eaton Compressor machine is preset for a cut-in PSI of 120 PSI and a cut-out of 145 PSI, which you can easily adjust yourself in the computer/PLC menu when you receive the unit. The higher the PSI this machine is creating, the lower the motor RPM is running. At the maximum PSI of 145, this electric motor is only running 33% of the full RPM of 1750 which is around 530 RPMs. As you are using the pressure of this machine, the lower the PSI, the faster the pump and motor speed will run increasing the air capacity. So this machine will only run to your air demands. The lower the pump RPM, the less air it pumps and the less amps the motor will pull. This allows you to buy a little larger machine to keep up with you business growth and air needs in the future, but only use the air and electricity that is need and not waste your money in a huge electric bill.

If you are running a high air demands all day long and not low air demands of air, the benefits of the Variable Speed Drive will not save you much and the higher cost of the variable drive machine over a regular drive machine without the variable speed capabilities will not benefit you. The reason for this is if you are running the machine 70% to 100 % load all day long under heavy air usage the electric motor is running around full speed of 1750 motor RPM and not using much of the lower motor RPM and lower amp draw benefits.

The other and most definite savings on the Variable Speed Drive Machine is your motor bearings will have less wear with lower RPM—your belts will have less wear with lower RPM- and most of all, you will get an even longer rotary screw pump life with lower RPM.

This unit does not have Y Delta Starting like our regular drive units. So the Starting Benefits of this machine are even better than Y/Delta starting it starts from the Variable Speed Inverter Drive

. This machine will start at 18 cycles with only 33% of the full load amps and only 530 RPMs and will maintain the low amp starting for about 12 seconds after the machines starts. After the 12 seconds under start up the unit will then start increasing the motor speed and CFM capacity. This Variable Speed Drive

unit also starts just like our regular drive unit because it is on a 12 second time delay, so there is no load on the unit under start-up mode. Both no load start up combined with 18 cycle starting is another huge advantage you will gain on your electric savings.

The PLC controller/computer gives you a wide range of advantages to control and operate your machine efficiently without worry. The PLC gives you a maintenance parameter that you can easily view at any time during the compressor operation. You can view your hours on the machine and also view the set list of hours that are put on the oil and filters for service and maintenance. We set these machines up with a set amount of time you can put in the synthetic oil – oil/separator filter – air filter – and spin-on oil filter. So when you go to the maintenance schedule you can view the hours on each maintenance item. For example if your oil has 1530 hours on it and the maximum hours is set for 4000 for changing, you can view each maintenance item and know how much time there is before you need to change that maintenance item. After you change the maintenance item - oil filters etc., then you can set the time back to 0 and it will keep track of that maintenance item all over again. It you would lose track of changing these maintenance items, this machine has a built in alarm to warn you what needs to be changed listed on the computer screen.

The PLC will run under voltages + 15% and -10%. If the voltage is too low, the unit will shut down and if the unit is too high, the unit will shut down. The PLC also has a adjustable amp range and will protect your electric motor from too high of an amperage – this unit will shut down protecting the electric motor from any high amp draw. This unit is also protected incase you might drop a phase – with a fuse system if you would drop a fuse - the PLC will sense this and shut down the compressor within 5 seconds after phase failure.

This PLC also has a list of amperage for each leg of the 3 phase which you can view as the unit is running. This is nice to keep track on how your electric motor is performing as it is running.

This PLC will also keep track if it should over pressure--the unit will shut down on over pressure safety.

This PLC also has a adjustable range of time from 5 minutes to 20 minutes so when the unit is running under no load it will turn off and then automatically restart when the pressure gets to the low set point on the PSI. This will save you energy so when the compressor is not being used you are not wasting electricity.

This PLC will also keep track of the total run hours. It will keep track of the time the unit is pumping under load and the time under no load. This makes it nice to keep track of your percentage of full load pump time.

This PLC also keeps track of the day month year and time.

The PLC will shut down the unit if it gets high in air temperature or if the unit runs low in oil.

The PLC will also sense if the unit is wired for the wrong rotation and it will not allow the unit to run.

This PLC also has a fault history that stores if the unit shuts down of why it shut down and makes it easy for any trouble shooting problems.

CHECK WITH YOUR LOCAL POWER COMPANY FOR TAX BREAK

Free 5 year oil analysis kit with every rotary screw purchase

Model PDRYHT0402

Description 402CFM High Temp Dryer

SCFM 402

Pipe Size: Inlet & Outlet (inches) 2"

Voltage 220

Phase (Neutral Wire Required) 3

AMP Draw 15

Drain- CALL OUT/SIDE BAR Auto

Heat Exchanger Casting Aluminum Alloy

Tube Copper

Cabinet Type CALL OUT OR FEATURES & BENEFITS Steel

Refrigerant Pressure Gauge CALL OUT Yes

Outlet Air Baffle Heater CALL OUT Yes

Dew Point (degrees F) 37-50

Max Working PSI 175

Max Rated Inlet Temperature (degrees F) 180

Refrigerant Type 404A

Amount of Refrigerant(oz) 113

Max Ambient Temperature (degrees F) 104

Dimension: LxWxH 47" x 28"x 52"

Weight (Lbs) 550

Shipping Weight (Lbs) 610

This is our Eaton Dry Air Model 402 Dry Air. This unit will dry up to 402 CFM very effeciently with very dry air. This dryer is used in body shops, machine shops, all businesses that need dry air. Water is a bad part of a compressor without a dryer. It will ruin your air tools and air motors on machines or anything that needs dry air. We have many customers that ask us “do you have a compressor with water-free air?” The only way to achieve this is to cool your air down to dew point. For example, humidity is in the air and you cannot see it. It is as a gas form. The only way to remove this water from the air is to cool the air down to dew point. Everybody knows when a low front comes through that it rains. The reason for this is the moisture that is in a gas form is cooled down and this is how you get rain. Another example is your air conditioner in the summer has water dripping off of the condenser. This is the same principle as our air dryer. It is cooling the air through a heat exchanger by circulating refrigerant. After the water is evaporated out of the air, it is collected in an accumulator or water trap. This water trap has a built-in auto drain which drains the accumulated water from the heat exchanger. After your air goes through this process, it gets all of the water out of your air system.

This refrigerated air dryer system is very low maintenance. This dryer is very easy to wire. It is 220V, 3 Phase only. Then just connect your air lines from the compressor to the IN marked “air port” and connect your shop air to the OUT marked “air port”. On the IN marked “air port”, I do recommend a coalescer filter system. This will remove all particulate from your air system down to 1 micron. A coalescer filter will also remove any oil that the compressor might use and keep it from getting into your air dryer. An air compressor oil-type will use 1-5 parts per million in oil carry over. It is just like your car motor, it will use “some” oil. The oil that is uses gets into your air lines in a millionth amount, but over a period of time, can plug your dryer up. This filter system will stop that from happening.

We use high quality refrigeration units in our dryers and high quality heat exchangers for maximum durability in industrial applications. This dryer also cycles the fan motor on and off as the air temperature goes up and down. It is very energy efficient. This dryer also has a temperature gauge on the outlet air line that tells the air temperature. This dryer has a lighted ON/OFF switch that you can turn your dryer on and off manually at the beginning or end of the day. This dryer has a very high quality auto drain for draining your air dryer. It also has a ball valve to turn the air off to the auto drain when maintenancing it and you do not have to shut your shop down when doing so. You can drain it manually when doing this. This dryer has an easy-access panel on the right side of it as you are facing the front of the dryer. This dryer has NO plastic—it is all HEAVY gauge material. This dryer has a 2” inlet port and a 2” outlet port.

You do not need any intercoolers with this dryer. It will handle your air system with great efficiency and QUIET operation.

Here at Eaton Compressor & Fabrication we cover our air dryers 100%. We have been covering our warranties for 31 years and have had many, many SATISFIED customers that can depend on us 100%. This dryer is covered by a 5-Year Warranty on the heat exchanger and a 2-Year Warranty on the rest of the dryer unit and includes an Owner’s/Operator’s Manual. This warranty is NOT a PRO-RATED warranty! A pro-rated warranty means the older and longer the warranty period is, the more you, as the customer, will pay out of YOUR pocket to get it fixed which means the liability is on the customer. We have a parts and labor warranty. At Eaton Compressor, our Eaton Dry Air Dryers are VERY HIGH quality and backed by us. With most of the competition when you have a problem, you have to go to the dealer and then they go to the manufacturer which takes lots of time and causes longer downtime. With Eaton Compressor, we can help you with an air technician to fix any problem you would have very quickly.

Email us with your city, state, and zip for freight quote. We give some of the most competitive shipping rates---but we do not "bump up" the unit cost and then claim "free shipping"! Residential delivery is an additional $15.00 and liftgate service is an additional $15.00. You can also pick the unit up here at our factory to save on freight. If you come to the factory to pick up your unit and you are not FULLY satisfied, you will not be obligated to take the unit with you. We are confident that you will be 100% satisfied!! We accept Visa, MasterCard, Discover, money orders, certified checks, or business checks and personal checks. However, if paying by business or personal check, unit will ship 10 days after. We offer the best factory service & warranty in the industry and have all parts in stock if you would have a problem - ready for next-day air shipment. Thanks for taking the time to view our product.