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Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503) image
 
(based on 19 ratings)
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Brand: Tjernlund
Located in: Air Quaility, Bath & Exhaust Fans, Fan Accessories, Fan Controls and Switches, Pressure Switches
Tjernlund Duct Airstat senses positive pressure in a forced air heating and/or cooling system. The single pole, single throw, snap-acting switch is activated by a diaphragm with a factory installed sampling tube inserted directly into the duct or plenum. The Duct Airstat can be used to initiate such auxiliary devices as: Duct Boosters, Electronic Air Cleaners, Electrical Duct Heaters, and Humidifiers. The electrical contacts of the switch are closed upon sensing positive air pressure generated by the blower. FEATURES: High Sensitivity Maximum Temperature Limit of 190 F. Simple Installation Self-Sealing Factory Mounted Sampling Tube Mounting Hardware Included Switch activates Duct Booster by sensing positive pressure on either plenum, trunk, or branch lines SPECIFICATIONS: ELECTRICAL RATING: 278 VA Pilot Duty at 24 Volts AC 300 VA Pilot Duty at 115 to 277 Volts AC 15 AMPS Non-Inductive to 277 Volts AC ELECTRICAL SWITCH: SPST, N/O, Snap Action Contacts, Non Adjustable OPERATING PRESSURE / POSITION: On pressure rise at +.05 + .02" W.C. (Diaphragm Vertical) MAXIMUM PRESSURE: 1/2 PSI OPERATING TEMPERATURE RANGE: -40 to 1900 F. SAMPLING TUBE: Self-sealing, factory mounted tube DIMENSIONS: 5 3/4" H X 3 1/4" W X 3"D LOCATION AND MOUNTING: 1. The duct Airstat must be mounted in a vertical position. 2. Drill a 11/32" hole in the duct or plenum to permit the insertion the pressure probe. If furnace has central air-conditioning, care must be taken so as not to drill into the cooling coil when mounting the Duct Airstat on the furnace plenum. 3. Insert the pressure probe into the drilled hole, position the Duct Airstat and mark the mounting holes. If necessary, bend the mounting feet with pliers to match the contour of the duct or plenum. 4. Remove control and drill or punch two 1/8" holes for mounting screws. 5. Using the two sheet metal screws furnished, fasten the Duct Airstat to the duct or plenum. Sealing gasket must be mounted on pressure probe to ensure minimal air leakage.
More information for the Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503)
Review Snapshot®
Avg. Customer Rating:
 
4.3 stars
(based on 19 reviews)
100% of respondents would recommend this to a friend.

Customers most agreed on the following attributes:

Pros:
Easy to install(16), Quiet(3)
Best Uses:
Basements(3)
Describe Yourself:
Avid do-it-yourselfer(10), Homeowner(16)
 
OK product
By BKRVerified Purchaser from Mcpherson Kansas on 2/16/2011
Pros:
Easy To Install
Cons:
Not sencitive enough
Best Uses:
Basements
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

it does control the duct fan nicely but I have to leave the airmover fan on medium to make this switch turn on the duct fan. I even moved it to the main line right above the airmover but still have to have the A/M fan in medium.

 
Great product & easy to install
By MikeyVerified Purchaser from Niagara Falls,NY on 10/11/2010
Pros:
Easy To Install
Best Uses:
Basements
Describe Yourself:
Handyman, Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Product is what is said, easy to install, works good with a duct booster.

[0 of 1 customers found this review helpful]

 
Great Product
By GaryVerified Purchaser from Joliet, IL on 8/4/2010
Pros:
Easy To Install
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

I used this with a pair of fans(Suncourt -- Inductor 6" In-Line Duct Fan (DB200P)) and it works great! No problems. Turns the fans on and shuts them off when senses pressure from the furnace fan running and stopping.

[0 of 1 customers found this review helpful]

 
Do it yourselfers friend
By RubenVerified Purchaser from Phoenix, AZ on 7/28/2010
Pros:
Easy To Install, Sleek Design
Best Uses:
Large Rooms
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

easy to install
transparent operation/completely automatic

 
Does the Job
By X ManVerified Purchaser from South Carolina on 6/14/2010
Pros:
Easy To Install
Describe Yourself:
Handyman, Homeowner, Professional
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Installed 4 suncort fans (3- 8" and 1- 6") all controlled by one pressure switch. Needed them to correct airflow problem at the far end of my home. What can I say...it is a switch...it either works or doesn't. Overall very satisfied with the results of this installation...My one complaint is that the instructions could be a bit clearer. Someone less familiar with wiring might be left guessing how to wire the thing up. Finally after 6 years, my 25x25 master suite is actually comfortable.

 
works as described
By lpVerified Purchaser from IL on 4/21/2010
Pros:
Easy To Install, Quiet
Describe Yourself:
Handyman, Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

as switch for duct booster. Takes a moment to figure out the wiring, but once figured out, works great.

 
Perfect unit for the job!
By JoeVerified Purchaser from Vineland, NJ on 3/23/2010
Pros:
Easy To Install
Best Uses:
Basements
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Easy installation; quality product.

 
Excellent product
By JTVerified Purchaser from Bloomington, Il on 3/12/2010
Pros:
Easy To Install
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

The switch works just like it should. I am very pleased.

[1 of 1 customers found this review helpful]

 
Installation tip
By SteveVerified Reviewer from Landenberg, PA on 2/16/2010
Pros:
Easy To Install
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Works as designed. I put it near the end of a long run and my furnace fan is set on low. Sometimes it did not sense the pressure. I found if you ship the top out a bit, while still insuring the probe is sealed to the duct, it becomes more sensitive.

Images shared by: Steve

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Tags: Picture of Product

 
Hopefully the second one last longer
By cphillipsVerified Purchaser from Cleveland, OH on 1/13/2010
Pros:
Sleek Design
Cons:
Instructions, Longivity
Describe Yourself:
Handyman, Homeowner

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

I'm new to the pressure switch market and how-to install them. For me, the instructions are far too vague and do not give enough information install on a step-by-step bases. After some head scratching and browsing on the internet, I found the missing pieces to help me through the installation.
As for the product, this is my second one. The first lasted, a little less than a year. I'm not sure if this is normal, but I would have expected a little longer life out of a product that I only really use on the colder days.

 
Works Great
By KenKVerified Reviewer from RI on 12/5/2009
Pros:
Easy To Install
Best Uses:
Large Rooms
Describe Yourself:
Handyman
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

It was able to sense a pressure difference at the end of a long run of duct work, where I put a inline duct fan saved me from running wire to the furnace some 70 feet away, good stuff!

 
performed exactly as needed.
By DonVerified Purchaser from ohio.. on 9/1/2009
Cons:
Works great
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

[...]

[1 of 1 customers found this review helpful]

 
Switch used with duct booser
By stlmajVerified Purchaser from Newmelle, MO on 4/22/2009
Pros:
Convenient
Cons:
Instructions not clear
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Product works good. Had to install it vertical and took some positioning to get it to fuction properly.

[1 of 1 customers found this review helpful]

 
Good product so far
By CalVerified Purchaser from Maplewood, MN on 3/23/2009
Pros:
Easy To Install
Cons:
None
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

I'm using this with a Fantech fan to boost more airflow to a bonus room above our garage. So far, it works very well turning the fan on and off when the furnace blower turns on and off. Pretty easy to install as well. I wired a wall plug to it and ran the other end from the unit to the air booster.

[1 of 1 customers found this review helpful]

 
Works great
By bmwmchughVerified Purchaser from New Jersey on 3/19/2009
Pros:
Easy To Install
Cons:
None
Best Uses:
Control duct fan
Describe Yourself:
Handyman, Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

I have it controling a in line ductfan and it turns the fan on and off every time.

[2 of 2 customers found this review helpful]

 
Works fine but plan placement well!
By BeetrootVerified Reviewer from McHenry, Illinois on 1/21/2009
Pros:
Easy To Install
Cons:
Poor location instruction
Best Uses:
Power for duct booster
Describe Yourself:
Handyman, Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Installed with a duct booster. My first install location (convenient for power hookup) turned out not to have enough air pressure to activate switch! I had to rewire all the way to the main Trunk Line! 50+ feet away from the Booster! Instructions should have warned about air pressure requirements and included some examples. 14 Gauge wire Barely fit in the small contacts and was quite frustrating. But it works Great! Just another example of "Live and Learn"

[2 of 2 customers found this review helpful]

 
Works great
By Chef MeschVerified Purchaser from Dallas, Texas on 1/13/2009
Pros:
Easy To Install
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Easy to install. Power terminals could be easier to connect--screws and wrap around are really small.

[1 of 1 customers found this review helpful]

 
This unit works well and accurately
By DanVerified Purchaser from Chicago IL on 12/2/2008
Pros:
Easy To Install, Quiet
Cons:
Energy Inefficient
Describe Yourself:
Handyman, Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Product works great but is a little large and heavy, could be smaller

[1 of 1 customers found this review helpful]

 
Great Product.
By MattVerified Purchaser from Huntsville, AL on 12/1/2008
Pros:
Easy To Install, Quiet
Describe Yourself:
Homeowner
Bottom Line:

Comments about Tjernlund Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503):

Easy to install. Works great. Very little start up or shut down lag.

Connectors are little bit difficult to tighten but workable.

Customer Reviews about the Tjernlund Duct Airstat Positive Pressure Duct Fan Switch (PS1503) at iaqsource.com
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