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Thermal Actuator, Four-Wire

SKU:A3010522

Brand: Uponor (Wirsbo)

Uponor (Wirsbo)
A3010522 has been discontinued.
Direct Replacement:
SKU: A3023522
Brand: Uponor (Wirsbo)
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Resources

Specs

Application: Zoning
Voltage:
?
24v
24v
Operating Range: 24V +/- 10% VAC
End Switch: Max 2A/24V dry contact
Wiring: Four-Wire
Height: 2"
Type: Thermal
Depth (Inches): 2-1/8"
Width: 1.625"
Weight (lbs): .30 lbs
Max Number of Actuators: 12 Thermal Actuators (50VA transformer)
19 Thermal Actuators (75VA transformer)
25 Thermal Actuators (100VA transformer)
Current Draw Range: 70mA /2w (brown and blue leads) 3.5VA
Accessory For: TruFLOW Manifolds

Description for Uponor (Wirsbo) A3010522

Slow-opening Thermal Actuator (24VAC) mounts directly onto 1 1/4" Brass and truFLOW Valved Manifolds. It provides individual loop flow control on a multi-zoned manifold (manifold serving more than one zone). Thermal Actuator includes end switch for activation of relay (pump), heat plant or other auxiliary devices. Do not mount actuators upside down.

Thermal Actuator, Four-Wire

REVIEW SNAPSHOT®

by PowerReviews
Uponor (Wirsbo)Thermal Actuator, Four-Wire
 
4.6

(based on 43 reviews)

Ratings Distribution

  • 5 Stars

     

    (32)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

98%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Primary use:
          • Personal (30)

        Most Liked Positive Review

         

        Much better than old and what I thought

        My house is 13+ years old and my radiant heat was not working like we wanted. I had replaced an old Wirsbo A3020522 back in 2008. I have 13 total actuators and I...Read complete review

        My house is 13+ years old and my radiant heat was not working like we wanted. I had replaced an old Wirsbo A3020522 back in 2008. I have 13 total actuators and I ended up buying 7 new Uponor A3010522 units. I used to have a handyman business so I tackled this project. If you can mark wires and change one unit and one wire at a time this project will go smoothly and be a major improvement over the old units. I was amazed at how easy it is to install the unit and verify it works. There was no adjusting needed for the valves. Now my system works so much better. I had 8 old units that were either frozen in open and mostly shut positions. I saved at least a $1000 doing this. I still have 5 of the old units but they are working. When it is time I will be back to buy them here (cannot beat the price, delivery and service)! Excellent product from an excellent company!

        VS

        Most Liked Negative Review

         

        Don't Know yet

        My in-floor radiant heating system uses 13 valve actuators. In 11 years of service, 3 motorized actuators have failed. Apparently the mechanical zone valves get sticky and the valve actuators exert a lot...Read complete review

        My in-floor radiant heating system uses 13 valve actuators. In 11 years of service, 3 motorized actuators have failed. Apparently the mechanical zone valves get sticky and the valve actuators exert a lot of force to open them. All of the motorized valve actuators in my system have failed because the plastic parts on the actuator are too weak and they break. I have not used the new style thermal actuators yet and I am somewhat apprehensive that because they are all plastic, that they too will break if they have to exert a lot of force on a sticky valve. There are no alternative devices, so I guess we have to use the new design actuator. At least they are less costly than the old style. I hope to be pleasantly surprised and the new ones will hold up for a long time.

        Reviewed by 43 customers

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        5.0

        Simple and easy

        By Grafton

        from Edgewood, NM

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        Replaced our older motorized actuators with these. Very simple, and they appear well made.

         
        5.0

        Hassle free direct replacement

        By OM

        from Albuquerque NM

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        This electric valve has the same color coded wiring and thread size as the original. No additional adaptor was needed. I'm glad I order an extra, considering my two mana folds have about 16 valves . Works great so far.

         
        5.0

        Uponor Actuators

        By Nick

        from Tijeras,NM

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        Simply wonderful! Replaced all 20 of my Wirsbo junk actuators with these and I am asking my self why I didnt do this earlier. Simply easy install!
        SupplyHouse is awesome too, in stock and at the steps in no time. These guys are the Bomb!

         
        5.0

        Does the trick

        By Expertamature

        from Thunder Bay. Canada.

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        Works as intended.

         
        5.0

        Easier to install

        By "Chief"

        from Arlington, WA

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        My installation was in close quarters, the new units fit better with no interference. Hopefully the new design won't fail as readily os previous actuators.

         
        5.0

        Thermal Actuator, 4 wire worked great

        By Jimdad

        from Trout LWAake

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        fine replacement for faulty valve on my in floor heating system.

         
        5.0

        Thermal Actuator replaceing mechanical

        By DIY Homeowner

        from Glenwood, MN

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        Product arrived on time and well packaged. It was easy to install in just a few minutes. It works as well or better than the mechanical actuators and appears to be working verticle, at 90 degrees or upside down, which was a concern of mine as my manifolds do not all accommodate a vertical installation. Great job shipping, I will be ordering more in the future as my mechanical actuators fail. Thank you.

         
        5.0

        Exactly what I needed

        By LadyfromSantaFe

        from Santa Fe New Mexico

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        This item worked perfectly, just make sure you buy the plastic nut that screw onto the manifold. The picture does not display this. Luckily I thought about this when ordering. It was an extra 2 bucks or so.

         
        5.0

        Excellent

        By Hydronics Guy

        from Bainbridge, OH

        Verified Reviewer

        Comments about Thermal Actuator, Four-Wire:

        Replaced all 9 actuators from the "No Name" ones that came with the hydronic manifold. End switch is much better than the old ones (2 wire), which ran the circ pump while actuator is opening (roughly 5 minutes of wasted electricity each cycle. These open quicker, save the pump, and Wirsbo has been around a while. This is second season and nary a problem.

         
        5.0

        I would certainly buy this product again

        By Garry

        from Northern California

        Verified Buyer

        Comments about Thermal Actuator, Four-Wire:

        This product works great. So simple to install. At first I didn't understand the picture lock & unlock thing and recycle, but looking back it all made sense. Thanks for the great unit

        Displaying reviews 1-10

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        Q&A: Ask the Questions, share answers

        Do you have questions about this product?

        get answers from real customers and in-house experts with AnswerBox.

        17 Questions | 30 Answers
        Displaying questions 1-10Previous | Next »
        • Thermal Actuator, Four-Wire

          Q:

          We are going to replace our Wirsbo motorized actuators. Do we need to buy the spacer rings? It looks like there is already a spacer ring under the old actuators but we haven't taken anything apart yet.
          Asked on 1/16/2014 by house whiff from left coast

          5 answers

          • VERIFIED BUYER

            A:

            All I bought was the actuators and they worked

            Answered on 1/18/2014 by Anonymous
          • VERIFIED BUYER

            A:

            I use this to simply replace the old unit...use everything in the box. My system only requires two wires, so I only use two of the four wires in this unit.
            --rd

            Answered on 1/17/2014 by Anonymous
          • VERIFIED BUYER

            A:

            No. I didn't need to buy a spacer ring when I replaced my actuators.
            Sent from my iPhone

            Answered on 1/17/2014 by Anonymous
          • VERIFIED BUYER

            A:

            No spacer rings are required

            Answered on 1/16/2014 by decoy86 from Albuquerque
          • VERIFIED BUYER

            A:

            Not sure what spacer rings you're referring to (perhaps wave washer?). But
            the ones I bought were complete. Just screw them on and hook up the wires.
            Good luck.

            Answered on 1/16/2014 by Anonymous
        • Thermal Actuator, Four-Wire

          Q:

          A310522 Valve Question: Is there a way to RESET the Valve like it was from the box?
          The furnace had to be turned OFF at the main power box while the Valves had the Manifold OPEN and the pumps ON when the furnace Igniter malfunctioned. The Valves did not return the Manifold to the CLOSED position at that time. When power was reapplied, the Valves did NOT move – stayed where they were. I turned the power back off and removed the Valves to see if they would return to their OFF position to no avail. Are they jammed / broken?
          Asked on 11/24/2013 by Keith from Hagerstown, Md

          1 answer

          • VERIFIED BUYER

            A:

            There are 2 types of actuators. One with a metal knob to adjust the valve
            and one with a plastic top that can't be adjusted. If you have the one
            with the metal knob it has to be adjusted to the open position when it's
            energized. If you screw the metal knob all the way down the manifold valves
            won't close. Hope this helps.

            Answered on 11/24/2013 by Anonymous
        • Thermal Actuator, Four-Wire

          Q:

          We presently have Wirsbo Motorized Valve Actuator Part #2052382 & are wondering if this part will work it its place.
          Asked on 10/30/2013 by Anonymous

          1 answer

          • VERIFIED BUYER

            A:

            Don@Adamanda’s,
            I am a home owner who does his own maintenance on our residential Wirsbo system.
            The motorized and thermal actuators from Wirsbo are generally interchangeable. Functionally they are similar with the thermal actuators being slower to open and close than the motorized version. In my experience the thermal actuators have been a longer-life part than the motorized actuators. (Our system is seventeen years old and I have replaced all of our actuators with thermal actuators.)
            Good luck!

            Answered on 10/30/2013 by Anonymous
        • Thermal Actuator, Four-Wire

          Q:

          Does this product have a warranty.
          Asked on 9/20/2013 by Chris from Nj

          1 answer

          • CUSTOMER CARE

            A:

            18 months.

            Answered on 10/10/2013 by PexSupply Staff from NY
        • Thermal Actuator, Four-Wire

          Q:

          will these work with Rifeng manifolds
          Asked on 3/4/2013 by steve from Red Bank

          2 answers

          • VERIFIED BUYER

            A:

            No- they will not fit- 

            Answered on 3/4/2013 by Anonymous
          • CUSTOMER CARE

            A:

            These actuators are not compatible with Rifeng manifolds. Rifeng manifolds only work with MA-ACT (two-wire) and MP700 (four-wire) actuators.

            Answered on 3/29/2013 by PexSupply Staff from NY
        • Thermal Actuator, Four-Wire

          Q:

          Will these actuators fit on non-truflo manifolds?
          Asked on 9/13/2012 by Jim

          3 answers

          • VERIFIED BUYER

            A:

            will only fit wrisbo/uponor old style manifold and newer truflow
            manifold with adapter

            Answered on 9/13/2012 by Anonymous
          • VERIFIED BUYER

            A:

            no. there is a special size and shape the actuator fits into.

            Answered on 9/14/2012 by Anonymous
          • CUSTOMER CARE

            A:

            These actuators fit TruFLOW and TruFLOW Jr. manifolds without an adapter. They also fit Uponor's EP heating manifolds if you use a part A2671300 adapter.

            Answered on 9/17/2012 by PexSupply Staff from NY
        • Thermal Actuator, Four-Wire

          Q:

          What is the length of the wire lead on the four wire thermal actuator? It looks to be around 3 feet long, but it is hard to tell.
          Asked on 9/8/2012 by Mr. Pex from Sandpoint, Idaho

          3 answers

          • VERIFIED BUYER

            A:

            If I remember correctly it may be 3 feet. The ones I bought are in a customers house so I can't go look at them but I believe you are correct at about 3 feet. I had wrapped the wire and put a tie on it because I wasn't comfortable cutting it to fit. You never know if you might need the extra wire. If the wire is to short you could always use small wire nuts and extend the wire a bit.
            Dave

            Answered on 9/8/2012 by Anonymous
          • CUSTOMER CARE

            A:

            The wire measures about 40 inches long.

            Answered on 9/11/2012 by PexSupply Staff from NY
          • VERIFIED BUYER

            A:

            Greetings,
            I already cut the wires to length when I installed the thermal actuator;
            I estimate the length of the leads to be around 2 feet in length.
            Hope this info helps-Brian

            Answered on 9/11/2012 by Anonymous
        • Thermal Actuator, Four-Wire

          Q:

          How does this work? When the room demands heat, does the actuator open the valve on the manifold to let water circulate and warm up the room?
          Asked on 4/7/2012 by Bob

          1 answer

          • CUSTOMER CARE

            A:

            That is precisely how this loop actuator works. It is more or less the same as a normally-closed zone valve, but it mounts directly to an Uponor manifold in order to allow a single manifold to include multiple zones. Four-wire actuators differ from two-wire actuators in that they have an end-switch which ensures that the circulator does not turn on until the valve opens completely. A3020416 is the two-wire (no end switch) version of this actuator.

            Answered on 4/9/2012 by PexSupply Staff from NY
        • Thermal Actuator, Four-Wire

          Q:

          Pertaining to installing upside down:
          Is it not recommended ONLY because of possible water damage in the event of a water leak? Will it work properly upside down?
          Asked on 3/20/2012 by Mark from Western PA

          4 answers

          • CUSTOMER CARE

            A:

            The actuators will work upside down, but such installations are strongly advised against by the manufacturer and may violate code in certain locations.

            Answered on 3/20/2012 by PexSupply Staff from NY
          • VERIFIED BUYER

            A:

            Yup, Just went down to the basement to check mine......

            Answered on 3/20/2012 by Another PexSupply Customer
          • VERIFIED BUYER

            A:

            These have been working great for me but, unfortunately, I have no experience with using them upside down. All 4 of mine are installed right-side up. Sorry!
            Thanks for asking.
            Regards,
            Bob

            Answered on 3/20/2012 by Another PexSupply Customer
          • CUSTOMER CARE

            A:

            I am not an expert but considering that the valve is opened by expanding hot
            wax and not a mechanical function I don't see any reason why you couldn't
            install at any position.
            Steve

            Answered on 3/21/2012 by Another PexSupply Customer
        • Thermal Actuator, Four-Wire

          Q:

          Can you use a 4 wire Actuator to replace a 2 wire actuator if so how is it wired
          Asked on 1/27/2012 by Anonymous

          1 answer

          • CUSTOMER CARE

            A:

            You should be able to, as long as the control board into which you wire the actuator can accept four wires. The second two wires serve as an end switch, ensuring that the circulator pump does not come until until the valve has fully opened.

            Answered on 1/30/2012 by PexSupply Staff from NY
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