0066028034007

Suncourt

Model DRY04

Internet #203151203

Store SKU #981769

4 in. Dryer Booster Kit

$188.00 /each
  • Included current switch reliably turns fan on/off with dryer
  • For installations between 25 and 140 equivalent feet
  • For use with electric dryers

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Product Overview

Suncourt's Dryer Boosting Kits are ideal for solving residential, commercial and industrial dryer vent problems where more airflow is needed. Most dryers are designed to vent about 15 ft. of duct. They supplement the fan in your dryer to enhance its efficiency. Their in-line construction allows for easy installation as well as reduced clogging. They have a high temperature rating up to 140 Degree F/60 Degree C. The fan has thermal overload protection and features an automatic reset. The Suncourt Dryer Boosting Kits come with an accurate, reliable current sensing switch that turns the fan on and off when it senses current from the dryer. Stack effect, wind and installation can interfere with the operation of pressure switches by starting the fan unnecessarily or simply not turning the fan on when required.

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Customer Questions & Answers

4 in. Dryer Booster Kit
4 in. Dryer Booster Kit

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This question is from 4 in. Dryer Booster Kit
 
3 answers

How does the booster fan "sense" current to the dryer?

This question is from 4 in. Dryer Booster Kit
Asked by
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September 9, 2015
My dryer is on the ground floor of the house and I want to install the booster fan in the vent line in the attic. How do I get the booster fan to "sense" current to the dryer? Do I have to run wiring between the dryer and the booster fan?
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Asked by
Evansville, IN
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June 24, 2016
Answer: 
A current sensing device needs to be installed in the power feed line to the dryer. The device is provided but must be mounted in an electrical box. This device itself operates as a switch in a line providing 120VAC power to the blower.
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Asked by
Portland, Oregon
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Home Improvement Profile: DIYer
December 13, 2015
Answer: 
Through Inductive current sensing. You have to loop one of the conductors of the wire supplying power to the dryer through the included sensing switch. This switch then turns on when it senses current flowing to the dryer to simultaneously provide power to the booster fan. You have to run a wire all the way from this switch to the booster fan location to achieve automatic switching. Without running a Read More
Through Inductive current sensing. You have to loop one of the conductors of the wire supplying power to the dryer through the included sensing switch. This switch then turns on when it senses current flowing to the dryer to simultaneously provide power to the booster fan. You have to run a wire all the way from this switch to the booster fan location to achieve automatic switching. Without running a wire "somewhere" between these two appliance "circuits", you Have to manually turn on the booster. One other option is a pressure switch in the duct close to the booster to turn on the booster that is on a completely different circuit than the dryer -- but the pressure switches are less reliable and may require some maintenance as the differential pressure sensor tube may clog with lint. Read Less
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September 10, 2015
Answer: 
The kit comes with a current sensing switch, which you will hard wire in.
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This question is from 4 in. Dryer Booster Kit
 
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Is this 110 or 220 wired?

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November 3, 2015
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Asked by
Portland, Oregon
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December 13, 2015
Answer: 
110volts only. The 220v goes to the dryer and should never be wired to the booster fan directly. Since the dryer requires 220volts, detecting when it turns on requires sensing the 220volt line. Hence the sensing switch. However, the sensing switch does not "electrically" contact the 220V power to the dryer, but only senses current flowing through it by coupling " inductively" (electro magnetic coupling). Read More
110volts only. The 220v goes to the dryer and should never be wired to the booster fan directly. Since the dryer requires 220volts, detecting when it turns on requires sensing the 220volt line. Hence the sensing switch. However, the sensing switch does not "electrically" contact the 220V power to the dryer, but only senses current flowing through it by coupling " inductively" (electro magnetic coupling). In essence, the 240v and the 120v circuits in this application is electrically isolated to form two separate circuits, but the 240v circuit can influence the 120v circuit to turn on together through inductive coupling. Read Less
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November 10, 2015
Answer: 
This is 110 volt. You can go to the Suncourt website to see installation instructions.
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This question is from 4 in. Dryer Booster Kit
 
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Can this be used with a gas dryer?

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September 15, 2015
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Asked by
Portland, Oregon
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December 13, 2015
Answer: 
Absolutely yes! A gas dryer still uses 120V electricity to tumble the clothes with an electric motor and control the drying mechanism (blower & timer). The only difference between a gas dryer and an electric dryer is the heating mechanism -- the former uses gas burner to produce heat, and the latter uses a 220V electric heating element. The current sensing switch included in this unit can detect the Read More
Absolutely yes! A gas dryer still uses 120V electricity to tumble the clothes with an electric motor and control the drying mechanism (blower & timer). The only difference between a gas dryer and an electric dryer is the heating mechanism -- the former uses gas burner to produce heat, and the latter uses a 220V electric heating element. The current sensing switch included in this unit can detect the current flowing in the 120V line connected to the gas dryer. The switch only needs to sense 1Amp current flowing to the gas dryer to turn on the vent booster -- the maximum current the sensing switch can withstand is 40Amps. Most gas dryers consume more than 1Amp. If the sensed current is too low to turn on the vent booster, you can increase it by looping the dryer wire conductor thru the sensing switche's hole a few times. Keep in mind, the sensed current is proportional to the number of turns, and you shouldn't exceed the maximum rating of 40Amps. The equation for Measured (sensed) current=Actual Current × the Number of Turns. Example: If the dryer draws 1amp, looping the wire two times will give you 2amps (1Ax2turns=2A). Even simple: try running the wire through the hole just once and see if the booster turns on with the dryer and only increase the turns (loops) sufficient for the sensing switch to start the vent booster.
Bottom line it will work with a Gas clothes dryer, just as good as an electric dryer! Read Less
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September 18, 2015
Answer: 
No this product is only to be used with an electric dryer
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This question is from 4 in. Dryer Booster Kit
 
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Product recommendation

This question is from 4 in. Dryer Booster Kit
Asked by
Orlando Fl
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July 19, 2015
After cleaning the vent tube and dryer it still codes vent sensor in a day or 2. in you product review it states that if the vent pipe is less than 25' this booster is not recommended with the calculation my vent pipe is 25' or less but it goes straight up to the roof to vent. Is head pressure part of this calculation and which vent fan would you recommend
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Asked by
Portland, Oregon
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December 13, 2015
Answer: 
If the total length of duct, after adding 5feet for each elbow, exceeds 25feet, you can place the booster at the end of the "effective" 25feet line to avoid lint from being pulled into the booster fan.
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August 31, 2015
Answer: 
I am not sure what you mean by head pressure. Remember that any elbows, Y's , etc. add 5 feet. If you are still at 25 feet or less you shouldn't need a booster fan. These are powerful fans that overcome high static pressure. If installed in less than 25' of vent pipe they can actually pull heat out of the dryer, which is counterproductive to the problem.
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Customer Reviews

Rated 4.3 out of 5 by 18 reviewers.
Rated 5.0 out of 5.0 by Just right for the need We are having our old vent replaced as it was very inefficient. We wanted the best possible venting so we purchased this. It seems to be well made and was easy for our installer to put in. The induction switch is perfect as the fan only runs when the dryer is running - a real plus. The instructions were also very clear. There aren't very many of these type of fans available but this one seems very good quality and we would recommend it to others with a similar need. July 20, 2016
Rated 5.0 out of 5.0 by Cut drying time from 3hrs plus to 40 minutes. We had a long route from the dryer to an outside wall (no alternative). Have had continuing problems with vent line clogging up. Even with clean lines, drying time was very long. Now much shorter as indicated above. As far as projects go, this installation was not bad but does involve electrical work as well as mounting the blower and re-routing the vent lines. This has to be installed in-line between the dryer and outside (not too close to the dryer. June 24, 2016
Rated 1.0 out of 5.0 by Doesn't kick on most of thw time I had an electrician install. It doesn't kick on most of the time which makes drying time longer July 28, 2016
Rated 4.0 out of 5.0 by 4 in dryer booster fan Booster fan was defective and was returned to local store. New fan was ordered and works fine July 19, 2016
Rated 5.0 out of 5.0 by dryer booster kit Product is good and price efficient. Not happy that I had to have an electrician come in and wire it though. I know it is not your fault, but to spend over $900 to buy and install a fan for a dryer seems like a lot of money. We needed it though and it is done and the fan works the way it should work. March 15, 2016
Rated 4.0 out of 5.0 by Booster works great BUT! The booster works well but the wiring instructions NEED HELP. I did the install myself but had to talk to a friend to figure out the best way to wire. Instructions state to use conduit to wire but I used Romax instead because of easy access to do so. Then I used a regular plug in from the booster to a recept box for easy removal to service[ a cord was not supplied to do so]. Booster works great and is quiet. Mounting brackets could be better made and enough for both ends not just one end for my model. Price for what I got was shaky for a plastic housed motor but I needed the booster to be in compliance with code restrictions so I'll live with it. November 1, 2014
Rated 4.0 out of 5.0 by Dryer booster kit This product made a big difference in the drying time. We have a number of bends before the air gets outside. Now the dryer is done well before the wash. Placed in the attic so it is very quiet. Little tricky making the power connection. This is why it didn't get 5 stars. July 14, 2015
Rated 4.0 out of 5.0 by Works Great Works great. I have about a 50ft run with 3 elbows. Fan comes on and goes of as needed. I mounted it horizontally in a crawlspace. Very quiet. Slight vibration can be felt when standing on floor above fan when it is running. 2 compliants. 1. No where on unit or box, or in instructions does it state cfm rating - have to trust website that it is 200 cfm. 2. Current switch does not fit in 4x4 box as shown. I had to mount it diagonally in box and therefore had to drill mounting holes into box to make it work. No big deal, but I hate incorrect instructions. Wish it came with flow/speed control. May 28, 2014
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