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22-1/2" Wide x 19" tall x 4-1/2" deep. 3,750 CFM high-output dual electric puller fan cools efficiently and quietly. Variable-speed PWM controller. Dual 225-watt, 18.7-amp motors. Vented aluminum shroud offers top or side mount.
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Specs:
Note: This assembly is intended for primary cooling and should provide enough airflow to replace your vehicle's factory fan, but you will still need to determine the CFM requirements for your engine before making your purchase. Engines that have been modified or vehicles used for towing may require additional CFM. There is no limit to the number of fans you can install, as long as they fit appropriately and are mounted on the same side of your radiator so that they do not cancel each other out.
You can install the Derale Dual Powerpack as a horsepower-boosting replacement for your belt-driven radiator cooling fan, or you can use it to upgrade or expand to your current electric fan system. The dual fan cools your engine by pulling 3,750 cubic feet per minute (CFM) through your radiator at 0 static pressure. High-output, 225-watt motors and skewed fan blades do the job efficiently and quietly. It keeps engine loads to a minimum by drawing power (37.4 amps) from the alternator - not the engine itself. An integrated pulse-width modulation (PWM) controller offers maximum cooling control and greatly reduces wear and tear. Fans operate only when needed - at the speed needed - for engine cooling. The Powerpack is neatly packaged in a slim, customizable aluminum shroud that offers multiple mounting locations and won't hog lots of space in your engine compartment.
Belt-driven radiator fans draw power from your vehicle's engine, which causes a mechanical load that robs the engine of valuable horsepower and torque. The Powerpack, on the other hand, gets its power from your vehicle's alternator, via your vehicle's 12-volt electrical system. The Powerpack's 37.4-amp draw is far less taxing to your engine than a belt-driven fan's mechanical load. So replacing your belt-driven fan with an electric fan system can increase available horsepower and torque - and even improve fuel economy.
The Powerpack's controller uses pulse-width modulation (PWM), which enables it to achieve and maintain the perfect operating speed for optimal engine cooling. The controller does this by adjusting the fan speed based on continuous, real-time engine temperature readings collected from the included sensor, which is mounted on the cool side of the radiator. Unlike conventional fan switches that have only 2 settings - on and off - the PWM controller operates at variable power levels from 0 percent to 100 percent. In some cases, for example, the engine can be kept at the desired operating temperature with fans running at between 40- and 60-percent of full operating speed. Lower operating speed means fewer cycles for the motors, which saves wear and tear and thereby potentially prolongs the life of the motors.
Soft-start technology helps protect your vehicle's electrical system by ramping fan motors up to operating speed slowly to eliminate harmful amperage spikes.
The Dual Powerpack pulls mass quantities of air through your radiator's fins using twin fans, each powered by a 225-watt motor. The patented, skewed fan blades are designed to move air with as little noise as possible. Each fan grill is actually a stator flow director that helps produce maximum velocity by aiming the outflow.
The Powerpack's rustproof aluminum shroud can be painted, polished, anodized, or left with its natural finish for a custom look. The shroud also serves as a wind tunnel so that air exits the fan quickly. Built-in air pressure relief vents help keep the static pressure load in check.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today, we're going to take a look at the Derale 22 and a half inch dual high output electric radiator fan with the aluminum shroud. Now, this is a high output dual radiator puller fan, which will help maintain optimal engine operating temperature. This will efficiently move 3,750 cubic feet per minute of air at zero static pressure. This will help restore horsepower and torque that's used up by your belt driven fans. This will draw power from your alternator, not the engine, with minimal mechanical load. It does include this pulse width modulation controller and the wiring.
Also, all the mounting brackets and hardware you need to install it with a nice set of detailed instructions.Now, the pulse width modulation controller, it's an integrated pulse width modulation controller that will allow precise variable fan speed control. What's nice is it continuously monitors your engine's temperature, so it'll run the fan only at precise speed needed for cooling between 0% and 100% power. It also can operate additional fans up to 65 amps max capacity.This is powered by the dual 12 volt, 225 watt motors. They draw 18.7 amps each, does use soft start technology, which will power up the engines gradually to prevent amperage spikes. This will move the air efficiently and quietly with the skewed blades.
Let me turn it over here so you can see the blades right there. Now, this will resist moisture and dirt, has a waterproof IP68 rating and uses dustproof motors. This will increase your airflow velocity, has a vented shroud. It's a rustproof aluminum shroud that will act as a wind tunnel. Has the built-in vents you can see right here, which will relieve excess air pressure.
The shroud can be painted, polished or anodized if you prefer.This is designed for top or side mounting. The part is made in the USA. Again, the specs on this. The diameter on the fans are 11 inches in diameter. Maximum cubic feet per minute per fan is 1,875, so with both of them would get you your 3,750 cubic feet per minute.
Power draw per fan is 18.7 amps.Now, the mounting dimensions. If you look on the edges of the shroud here, you can see the slotted holes there and on that side also. Basically, there's a range width-wise, anywhere from 14 and a quarter inches up to 20 and a quarter inches for the width. The height, anywhere from 11 and a half inches up to 17 and a half inches. Now, the overall dimension on itself, 22 and a half inches wide, 19 inches tall and the total depth from the back here to where the motor comes out is about four and a half inches deep.That should do it for the review on the Derale 22 and a half inch dual high output electric radiator fan with the aluminum shroud.
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