Tjernlund Products, Inc. Tjernlund draft inducers, power venters, ventilation



 

 

 
 FAQs
 
Below are frequently asked questions for some of our most popular products. FAQs for more products are being added on an ongoing basis. Contact Tjernlund Support for answers to question not answered below.

Customer Service
Duct Booster® Duct Fans
In-Forcer™ Fresh Air Intakes
AireShare™ Room-To-Room Fans
UnderAire™ Crawl Space Ventilation Fans
SideShot® Sidewall Vent Systems
HS Series Sidewall Vent Systems
Auto-Draft® Draft Inducer for Stoves
VP Water Heater Vent Packages
In-Line Draft Inducers
Dryer Duct Boosters®

Customer Service

Question: What is the status of my order?
Answer: Please call Tjernlund Customer Service for status of an order.
Question: What is the tracking number of my order?
Answer: Tracking numbers will be emailed if email address is provided, otherwise you will have to call Tjernlund Customer Service.
Question: How do I add to an order?
Answer: You can email the request in to fanmail@tjfans.com or call Tjernlund Customer Service.
Question: What is the warranty policy?
Answer: Tjernlund Products has a one year warranty on most products replacement parts. The warranty period is 2 years on the model SS1 & SS2 and 5 years on the model LB1.
Question: If I have an item that qualifies for warranty what is my next step?
Answer: You would email the request to fanmail@tjfans.com or call Tjernlund Customer Service.
Question: What happens if I receive the wrong product?
Answer: Contact Tjernlund Customer Service.
Question: How do I place an order with Tjernlund?
Answer: You can email in the request to fanmail@tjfans.com or call Tjernlund Customer Service. You can also fax the order in to 651-426-9547. Keep in mind that we do not sell direct and only through distributors or wholesalers.
Question: How do I check inventory?
Answer: You would email the request to fanmail@tjfans.com or call Tjernlund Customer Service.
Question: How do I check on the status of my warranty claim?
Answer: You would email the request to fanmail@tjfans.com or call Tjernlund Customer Service.
Question: Where would I find pricing on the products?
Answer: You would email the request to fanmail@tjfans.com or call Tjernlund Customer Service. Keep in mind that we do not sell direct and only through distributors or wholesalers.
Question: Do you have a technical service line?
Answer: Yes. You can call 1-800-255-4208 and listen to prompts to get to technical service.

Duct Booster® Fans

Question: Can I activate a Duct Booster® with the blower motor of my furnace?
Answer: This can damage the control circuit of the furnace. If you wire the Duct Booster® motor to operate when the blower motor of the furnace is activated, the furnace controls may not be rated for the additional amperage. Check with the furnace and/or control manufacture.
Question: How can I safely activate my Duct Booster® automatically?
Answer: Tjernlund Products offers the PS1503 Duct Airstat™, positive pressure air switch. The PS1503 Duct Airstat™ has normally open contacts. Once the blower motor in the furnace is activated it will close the normally open switch and start the motor of the Duct Booster®.
Question: Can I operate a Duct Booster® with a speed control?
Answer: Tjernlund Products distributes a speed control, the Model SC-1. The SC-1 will control the CFM by 20% off the maximum of the Duct Booster’s® performance.
Question: How quiet is a Duct Booster®?
Answer: When air is moved in ductwork there is some sound associated with the fan motor and the air moving through the duct. Users find the small amount of noise to be acceptable.
Question: I have a DB-2 Duct Booster®. The motor is very warm. Is that normal?
Answer: The motor on the DB-2 Duct Booster® is a vent less motor; it operates hot. This is a normal for the DB-2 Duct Booster® motor.
Question: Can I operate multiple Duct Boosters® with one PS1503 Duct Airstat™?
Answer: Yes you can wire more than one Duct Booster® to operate with the PS1503 Duct Airstat™. The Duct Booster® motors will have to be wired in parallel with the Duct Airstat™.

 
In-Forcer™ Fresh Air Intakes

Question: How do I determine if a Combustion Air In-Forcer™ is necessary?
Answer: Most installations rely on air for combustion to be available through infiltration. Combustion air is often overlooked for the correct volume of air required to support the burner. Most contractors will provide a combustion air intake. This is typically a flexible duct that will allow outdoor air to be drawn in as the burner fires. The down side of using a passive method is the air entering can be affected by cross winds, making it difficult to get the correct volume of air needed. The heating capacity of the appliance will determine the amount of air needed. Residential homes require anywhere from forty to eighty CFM. That doesn’t seem like a lot of air unless you consider the size of your mechanical space. If your room is eight foot by eight foot that gives you sixty-four square feet. If you multiply sixty-four by the height of the ceiling (which is typically eight feet) that will give you five-hundred and twelve cubic feet. If you’re consuming eighty CFM you will use all the air in that space in less than seven minutes. It is desirable to deliver that air with a Combustion Air In-Forcer™ rather than assume there is air available. By using a Combustion Air In-Forcer™ you will get the correct volume of air to support the burner without creating a negative pressure. This will increase the efficiency and extend the life of your heating equipment.
Question: I have several heaters, how do I select the right Combustion Air In-Forcer™ model for my application?
Answer: The recommended solution is to have a Combustion Air In-Forcer™ dedicated to each heating appliance. This isn’t always possible. Many mechanical rooms have limited space for this type of installation. Determine your equipment selection by following the tables. The tables will list fuel types, appliance types, BTUH Input and the CFM requirements. Using the tables you can select the appropriate Combustion Air In-Forcer™ for your combustion air needs. If you cannot select a Combustion Air In-Forcer™ for each heating appliance you will have to select an In-Forcer™ that will provide the total CFM for all of the appliances. The In-Forcer™ is fixed speed. When supplying air to multiple heaters with a single In-Forcer™ it will deliver the full volume of air required for all the appliances even when there is only a single call for heat. Tjernlund Products offers a full line of controls that will simplify wiring multiple appliances to a single Combustion Air In-Forcer™. If you have any questions contact Tjernlund Products at 1-800-255-4208 for technical assistance.

 
AireShare™ Room-To-Room Fans

Question: What is the difference between the two models?
Answer: The difference is the AS1 is a hard-wired fan. It is most commonly wired to a 115 volt wall switch. The AS1P is factory wired with a cord and will require a wall receptacle to plug into. The blower grille will cover the fan  and the receptacle hiding the plug and cord.
Question: Can I install the AireShare ™ above a doorway?
Answer: This isn’t recommended. Every doorway has a concealed header. The  height of the header can vary depending on the load that the wall is carrying. If installing the Aireshare™ requires cutting into the header you should consult with your local building inspector.
Question: Can I operate the AireShare™ with a thermostat?
Answer: The AS1 Series can use a 120 volt thermostat to control fan operation.  Tjernlund Products offers a thermostat on the retail store link of our web page. Consider hiring a licensed Contractor to perform 120 volt electrical  connections.
Question: Can I reverse the direction of the AireShare™?
Answer: The air flow direction cannot be reversed. You choose to have air flowing up or down the wall cavity. Moving air up the wall cavity and  discharging in the adjacent room high is used with air conditioning.  Moving the air from the ceiling of the room to near the floor of the adjacent room is best with a heating system, stove or fireplace.
Question: How quiet is the AireShare™?
Answer: The AS1 has a sone rating of 1.15, equal to 42 dBs and the AS1P has a sone rating of 1.42 or 45 dBs. These are advertised as “whisper quiet.” This sound data suggests the AireShare™ is 50% quieter than other air transfer fans.

 
UnderAire™ Crawl Space Ventilation Fans

Question: How do I select the correct UnderAire™ Crawl Space Ventilator model for my crawl space?
Answer: Calculate the cubic area of the crawl space by multiplying the length × width × height. Divide this number by 15 to determine the  minimum CFM necessary to fully ventilate the space in 15 minutes.  Example: 20’ wide × 40’ long × 3’ high crawl space = 2400 cubic ft. 2400 cubic ft. ÷ 15 = 160 CFM of ventilation. Choose two V1 or V1D ventilators or one V2D ventilator.
Question: Where should I mount the UnderAire™ Crawl Space Ventilator?
Answer: Crawl Spaces are usually square, rectangular or L shaped. The UnderAire™ Crawl Space Ventilator should be installed to provide complete ventilation. As air is being vented out of the crawl space, air will be entering in from a foundation vent on the opposite side of the crawl space. The UnderAire™ exhausts stagnant air from the crawl space while fresh outdoor air enters foundation vents on the opposite side of the crawl space.
Question: How do I know how many foundation vents are needed?
Answer: The UnderAire™ Crawl Space Ventilator will do an air change every 15 minutes if properly sized. If you have an existing structure you may have foundation vents in place. It is recommended to have a foundation vent for each UnderAire™ installed on an opposite foundation wall. If you need to add a foundation vent or want to replace the existing vent, Tjernlund Products has the FV1 foundation vent available. The FV1 includes a cover that can be applied for the winter months to prevent air from entering the crawl space.
Question: Can the UnderAire™ Crawl Space Ventilator be installed on the outside of the foundation wall?
Answer: No. The UnderAire™ Crawl Space Ventilator will need to be mounted on the inside of the wall. This will protect the ventilator controls from direct contact with rain or snow.
Question: If I do not have an outlet near the UnderAire™ Crawl Space Ventilator can I use an extension cord for a power source?
Answer: The UnderAire™ Crawl Space Ventilator requires 120 volt power supply. Tjernlund Products recommends that the UnderAire™ plugs directly into the wall receptacle. It is also recommended the receptacle be protected with a GFI Ground Fault Interrupter. The UnderAire™ Crawl Space Ventilator is suitable for damp locations.
Question: Where should I position the de-humidistat’s relativity humidity setting?
Answer: A set point of 40% relative humidity will maintain a comfortable environment within the crawl space. Adjusting the set point below 40% relative humidity will maintain a drier crawl space by operating the UnderAire™ more frequently. Adjusting the set point above 40% will result in less frequent operation of the ventilator and more moisture in the crawl space. The Uniform Building Code requires all bare ground crawl spaces to be surfaced with poly covering of at least 6 mils thick. This cover will keep the moisture out and promote a drier crawl space.
Question: My opening to mount the UnderAire™ Crawl Space Ventilator is smaller than the mounting plate. Can the mounting plate be trimmed to fit my opening?
Answer: In most cases the mounting plate can be trimmed to fit the opening you are working with. The V1D can be trimmed to fit a 6×10 inch opening and the V2D can be trimmed to fit a 6×15 inch opening.
Question: Why doesn’t my UnderAire™ operate in cold weather?
Answer: All UnderAire Crawl Space Ventilators have a built in low temperature limit switch that is designed to stop fan operation once the air temperature drops below forty degrees Fahrenheit. When the outdoor temperature climbs above forty degrees Fahrenheit, the UnderAire™ will automatically resume operation.
Question: Where can I purchase the UnderAire™ Crawl Space Ventilator?
Answer: Contractors are encouraged to contact their local wholesalers for price and availability. Otherwise Tjernlund Products has a link on the “Home” page of our site. In the upper right hand corner you can select the Retail Store link. Your purchase will be arranged with a direct shipment to you using a PayPal™ account. If you need assistance call Tjernlund Products at 1-800-255-4208.
 
SideShot® Sidewall Vent Systems
Question: When I use a SideShot® venting system do I need to include a barometric draft control?
Answer: Yes. The barometric draft control (which is usually supplied with heating equipment) is necessary for setting over fire draft adjustment on the burner of an oil appliance.
Question: Can I vent multiple heaters with one SideShot®?
Answer: Yes. You will need to add an MAC1E interlock control to support the second appliance. It will interface with the UC1 control allowing you to interlock two individual appliances with one SideShot®. Both appliances will need to share a common manifold or vent connector prior to the inlet of the SideShot®. The total “equivalent” length of allowable pipe for a SideShot® is fifty feet. Each elbow must be counted as ten feet. So the actual linear length of vent pipe is usually less than fifty feet. There is also a BTU/hr input limit that may not be exceeded. You can check the sizing table on-line or you can contact Tjernlund Products for assistance, 1-800-255-4208.
Question: My foundation wall is 18 inches thick. Do you make an extension for the SideShot®?
Answer: The SideShot® wall thickness cannot exceed 14” when using the SS1. When using the SS2 the wall thickness cannot exceed 16”. For foundations that exceed these maximum thicknesses use the HS Series side wall vent systems.
Question: My siding is vinyl. Should this be a concern when side wall venting?
Answer: One of the SideShot’s® designed features is that it propells the flue gases straight away in a horizontal direction. This prevents streaking to the building’s exterior. For vinyl siding Tjernlund recommends building a wood frame for mounting. The top and sides use 1”x 2”and the bottom use 1”x 3”. The inside frame opening will be 10 ½”wide by 8 ½” high. This will provide a flush mounting surface wood frame to secure the termination flange to. The contractor can secure the “J-Channel” to the outside of the wood frame keeping the SideShot® from coming into direct contact with the vinyl siding.
Question: The one side of my house that I can vent through the side wall is directly under a deck. Is that ok to terminate under the deck?
Answer: Venting under a deck isn’t recommended even though it is allowed. The flue gas odor can be detected if you’re using your deck. If you have an oil burner it may discolor the under side of the deck, possibly turning it black. But, it is allowable if there is a minimum of 12 inches between the top of the SideShot® and the under side of the deck.
 
HS Series Sidewall Power Venters
Question: How do I size a side wall power venting system?
Answer: Tjernlund Products has a sizing tool on line, visit “Tjernlund.com.” You will need the BTU/hr input and fuel type of each appliance being vented by the Power Venter. It is recommended to view the Reference Guide for side wall venting. This literature is available on line in the document library. Pipe diameter, BTU/hr input and fuel type will determine your model Power Venter. The sizing chart uses a 100 foot total “equivalent” length maximum. To determine equivalent feet, add the total length of straight vent pipe plus 10 feet for each 90 degree elbow and 5 feet for each 45 degree elbow. Once you select your Power Venter using the Reference Guide you can also select a termination hood. If you require assistance sizing equipment contact Tjernlund Products at 1-800-255-4208.
Question: When venting side wall what equipment will I need?
Answer: Once you have selected your power venting system you can determine what additional controls are needed. Tjernlund Products offers a few vent packages for venting single appliances. These packages are complete less the vent pipe. The GPAK is a package for one gas furnace. The VP-2F and VP-3F are for individual gas water heaters. The Side Shot® SS1 and SS2 are designed for fuel oil, natural gas and LP. The HS series Power Venters include a UC1 control and fan proving safety switch. The UC1 will allow a single interlock directly between the appliance’s burner circuit and the Power Venter. The UC1 control features a voltage selection option. You simply set the voltage selection pin to match the interlock voltage of the burner circuit of the appliance: 115VAC or 24VAC. If you have a millivolt appliance that is equipped with a standing pilot and a thermocouple you will need a WHKE interlock kit that will interface with the UC1 control. If you have any questions contact Tjernlund Products, Inc. at 1-800-255-4208.
Question: Can I vent more than one appliance with a single Power Venter?
Answer: Yes. When venting multiple appliances with a single Power Venter you must have a UC1 control. As stated above GPAKs VP-2F, VP-3F and Side Shots® are designed to vent one appliance only. Venting additional appliances can be accomplished by adding either the MAC1E or the MAC4E to the UC1. This will allow you to support one additional appliance or four additional appliances, respectively. When using any multiple appliance control you will always be required to have the UC1. Note if you are interlocking a millivolt appliance (standing pilot, thermocouple) you also need to add a WHKE Kit. All appliances need to share a common manifold or vent connector on the inlet side of the fan. The total BTH/hr cannot exceed the capacity of the Power Venter.
Question: Can I mount the Power Venter at the appliance or do I need to keep it as close to the side wall as possible?
Answer: Tjernlund recommends that the Power Venter is mounted at the side wall, connecting the outlet collar of the fan to the termination hood. All portions of vent pipe prior to the Power Venter inlet are under negative pressure. Any vent pipe on the discharge of the Power Venter is under positive pressure. All vent pipe on the discharge of the fan must be leak proof to ensure the flue gas doesn’t escape the vent pipe joints.
Question: Can I position my Power Venter to terminate through the roof?
Answer: Yes. The HS Series fans can be mounted to discharge vertically. The motor shaft must be mounted horizontally. All portions of the vent system under positive pressure during operation (on the outlet side of the Power Venter) shall be designed and installed so as to prevent leakage of flue gases into the building.
Question: Do you offer replacement parts for previous models?
Answer: Yes. You can find a list of replacement parts in the document library on our web site. Visit www.Tjernlund.com. 
 
 
Auto-Draft® Draft Inducer for Stoves
Question: I have a wood stove with poor draft. Will the AD-1 help improve this condition?
Answer: These are conditions that cause poor drafts: Your stove pipe or chimney may be undersized. Your chimney may not be tall enough to ensure proper draft. Your home may be located in a low lying area, making your chimney susceptible to downdrafts. Your chimney can also be affected by over hanging tree limbs causing downdrafting. The AD-1, Auto Draft® Inducer mounts into metal stove pipe. Pipe size can range from 5 to 8 inches. The AD-1 Auto-Draft® Inducer will improve draft on a wood or coal stove. The AD-1 Auto Draft® Inducer includes a speed control. The AD-1 can be purchased on-line or through several distributors. If you need assistance finding a distributor please contact Tjernlund Products at1-800-255-4208.
Question: When I put wood in the stove it “puffs” smoke. Will the AD-1 eliminate this?
Answer: When then the AD-1 is operating it will eliminate any puff backs that occur when loading your wood stove.
Question: I have a masonry chimney. Can I use the AD-1 Auto Draft® Inducer?
Answer: The AD-1 must be mounted on metal stove pipe. It may be used if you have stove pipe connecting the wood stove to the masonry chimney.
   
Question: I want to install an In-Line Draft Inducer in Type B-vent pipe, is that ok?
Answer: The In-Line Draft Inducer must be installed in a section of single wall pipe, so that the wheel has proper penetration into the pipe. Type-B vent pipe may be used throughout the rest of the vent run.
Question: Can I install an In-Line Draft Inducer outdoors?
Answer: No. The In-Line Draft Inducers need to be installed indoors. A popular location is on the horizontal pipe prior to the vertical rise of the chimney. It is necessary to maintain three pipe diameters on the discharge side of the Inducer prior to the vertical rise of the chimney. Provide sufficient support for the Inducer and all sections of vent pipe.
Question: Can I vent more than one appliance with an In-Line Draft Inducer?
Answer: Venting multiple appliances can be accomplished by using the UC1 and either the MAC1E or the MAC4E. This will give you the ability to support a total of two appliances when using the UC1 and the MAC1E. If you’re venting more than two appliances, then you will need the UC1 and the MAC4E, giving you the ability to support up to five appliances. The UC1 and MAC1E and the MAC4E interlock directly with 24VAC or 115VAC. Millivolt appliances, like, residential water heaters, require a WHKE kit. This kit includes a gas pressure switch that will actuate the Inducer. If you need assistance sizing and selecting the right equipment for your venting application feel free to contact Tjernlund Products, Inc. direct at 1-800-255-4208
Question: Can I wire the Inducer to operate all the time?
Answer: Yes, but there must a safety interlock in the event of Inducer malfunction. The National Fuel Gas Code ANSI Z223. 1 paragraph 12.4.3.5 states: “Where a mechanical draft system is employed, provision shall be made to prevent the flow of gas to the main burners when the draft system is not performing so as to satisfy the operating requirements of the appliance for safe performance”.
Question: As a homeowner can I purchase this equipment directly from
Tjernlund Products, Inc.?
Answer: No. Tjernlund Products sells its venting equipment through Wholesale Distributors who in turn, sell to Professional Contractors. The Contractor will sell our equipment to you.

 
VP Water Heater Vent Packages

Question: What does the water heater vent system include?
Answer: The water heater vent system is designed to side wall vent, millivolt,
standing pilot gas water heaters. It includes everything except the vent
connector and fittings. Included with the vent system is the Power Venter, the termination hood and the controls for actuation and safety. The water heater vent system is CSA design certified.
Question: My water heater uses PVC vent connector. Can I use the water heater
vent system for this type of water heater?
Answer: The water heater vent systems are not compatible with condensing type
equipment. You must use all metal vent pipe. This type of vent system is designed for atmospheric heaters.
Question: Is there any restrictions to the size of the water heater or how far I can vent
the appliance to the side wall?
Answer: The VP-2F has an input rating of up to 60,000 BTU/hr. The VP-3F is rated for BTU/hr input loads from 60,000 to 120,000. Both models have a maximum vent pipe allowable length of seventy-five feet total “equivalent” length. 90 degree elbows are equivalent to 6 feet of straight vent pipe.
Question: I have an older model VP-2. I am replacing my water heater. It has an enclosed burner chamber. Can I use the old VP-2 with my new water heater?
Answer: The Gas Pressure Switch (actuation) has been redesigned for compatibility with enclosed burner chambers. The part number is 950-2080.The new style switch has a bleed orifice, instead of the overflow tube. IF you use the existing switch you will need to use ¼” copper AC tubing and route the overflow to the outdoors.

 
In-Line Draft Inducers

Question: I want to install an In-Line Draft Inducer in Type B-vent pipe, is that ok?
Answer: The In-Line Draft Inducer must be installed in a section of single wall pipe, so that the wheel has proper penetration into the pipe. Type-B vent pipe may be used throughout the rest of the vent run.
Question: Can I install an In-Line Draft Inducer outdoors?
Answer: No. The In-Line Draft Inducers need to be installed indoors. A popular location is on the horizontal pipe prior to the vertical rise of the chimney. It is necessary to maintain three pipe diameters on the discharge side of the Inducer prior to the vertical rise of the chimney. Provide sufficient support for the Inducer and all sections of vent pipe.
Question: Can I vent more than one appliance with an In-Line Draft Inducer?
Answer: Venting multiple appliances can be accomplished by using the UC1 and either the MAC1E or the MAC4E. This will give you the ability to support a total of two appliances when using the UC1 and the MAC1E. If you’re venting more than two appliances, then you will need the UC1 and the MAC4E, giving you the ability to support up to five appliances. The UC1 and MAC1E and the MAC4E interlock directly with 24VAC or 115VAC. Millivolt appliances, like, residential water heaters, require a WHKE kit. This kit includes a gas pressure switch that will actuate the Inducer. If you need assistance sizing and selecting the right equipment for your venting application feel free to contact Tjernlund Products, Inc. direct at 1-800-255-4208
Question: Can I wire the Inducer to operate all the time?
Answer: Yes, but there must a safety interlock in the event of Inducer malfunction. The National Fuel Gas Code ANSI Z223. 1 paragraph 12.4.3.5 states: “Where a mechanical draft system is employed, provision shall be made to prevent the flow of gas to the main burners when the draft system is not performing so as to satisfy the operating requirements of the appliance for safe performance”.
Question: As a homeowner can I purchase this equipment directly from
Tjernlund Products, Inc.?
Answer: No. Tjernlund Products sells its venting equipment through Wholesale Distributors who in turn, sell to Professional Contractors. The Contractor will sell our equipment to you.
Question: Can I operate multiple Duct Boosters® with one PS1503 Duct Airstat™?
Answer: Yes you can wire more than one Duct Booster® to operate with the PS1503 Duct Airstat™. The Duct Booster® motors will have to be wired in parallel with the Duct Airstat™.
Question: Do I need the service of a professional Contractor?
Answer: Tjernlund Products recommends that you employ qualified, licensed service personnel. Improper installation may result in fire, electrical shock, carbon monoxide poisoning, personal injury and /or property damage.
Question: What is the best way to determine if I need an In-Line Draft Inducer?
Answer: These conditions may require an Inducer: Undersized chimneys, or short  chimneys using vent systems will improve draft. Draft Inducers are often installed when the horizontal pipe length exceeds the code requirements.
 

Dryer Duct Boosters®

Question: Will the Dryer Duct Booster® reduce my drying time?
Answer: Drying time will be shorter when using the Dryer Duct Booster®. Dryer vent runs exceeding twenty five-feet of duct lose velocity. When you add the Dryer Duct Booster® you will maintain proper velocity, reduce drying time and any lint build up in your dryer duct. The shorter drying time will save energy.
Question: What are the installation requirements for the Dryer Duct Booster®?
Answer: The LB1 must be installed 15’ feet from the dryer and not any closer than 5’feet from the termination. Do not install any elbows directly to the inlet or discharge of the LB1. Maintain 12 inches of straight duct on both sides of the fan. Use rigid duct. Secure all joints with foil tape; do not use screws. If you use flexible duct try to minimize its distance using it only behind the dryer. Make sure there aren’t any kinks. Use an exhaust hood that has a damper included, preferably one that includes a 45 degree deflector preventing against direct winds.
Question: After I Install the Dryer Duct Booster® and plug it in, how will it operate?
Answer: The LB1 will automatically turn on and off but not in unison with the dryer. Make sure the dryer is empty and it is cool. Make sure the lint trap is clean and the door of the dryer is closed. Plug in the LB1. The LB1 will not turn on for about 30 seconds. During these 30 seconds the LB1 control module is establishing a baseline pressure. Once the LB1 starts, it will record the pressure level it senses and then turn off. The control module uses these set points to turn the motor on/off. Wait two minutes to allow the learn process to be completed. The next five dryer loads are important to the booster operation. Clean the lint trap after every dryer cycle. Let the dryer run a full dry cycle and cool down cycle with each load. Do not unplug the LB1 or you must repeat this procedure. For assistance please call Tjernlund Products, at 1-800-255-4208.
Question: My Dryer Duct Booster® will not turn on with my dryer. I tried to reset the control. What else can I do?
Answer: Make sure no portions of the duct are plugged or kinked. Check the discharge hood and make sure there isn’t a blockage of lint holding the damper open. After you unplug the LB1 make sure the dryer is empty and cooled down. Clean the lint trap. Close the door to the dryer and plug in the LB1. The LB1 will run its program approximately thirty seconds after you plug it in. Allow two minutes before starting the dryer. When you turn the dryer on again, have a load of clothing in. For assistance contact Tjernlund Products at 1-800-255-4208
Question: My Dyer Duct Booster® will not turn off with my dryer. Should I unplug the LB1?
Answer: Do not unplug the LB1, if the Dryer Duct Booster® is running and the dryer has turned off. Open the dryer door, close the door and turn the dryer on for a minute. Turn the dryer off and open the door. This will change the pressure in the duct, and the LB1 should turn off in two minutes or less. If you unplug the LB1 you will need to re-program the control.
 


 

 

Chimney Stack Assist Kit

Balance Booster™ Fan
 
Radon Vac Fan
 
Stove Blower
 
Basement Fan
 
Rooftop Inducers
 
Dryer Booster
 
Room-to-Room Fans
 
Crawl Space Fans
 

 


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Phone: 800-255-4208  |  Fax: 651-426-9547