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Location: 185 Price Parkway, Farmingdale, NY 11735
Hours: 8:00AM - 7:00PM, Mon - Fri.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products used in any system providing water for human
consumption (drinking or cooking) to meet low-lead standards.
Please check the box below to confirm you are aware of that this item is for non-potable water applications only.
This product will NOT be used in the installation or repair of a potable water (human consumption) application.
You must agree to this statement in order to purchase this product.
Do not use this item for any installation or repair of potable water applications.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking).
This item is for non-potable (non-human consumption) water applications only.
Brand: Uponor (Wirsbo)
This product was discontinued by the manufacturer.
Voltage, or volts, is a measurement of the difference between two electric fields (in heating terms, the difference between the Earth's electrical field and the electricity running through your wires).
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.
(based on 48 reviews)
of respondents would recommend this to a friend.
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!
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 48 customers
Displaying reviews 1-10
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from NY NY
Comments about Thermal Actuator, Four-Wire:
My old actuator failed and needed to be replaced. The only difference in the wiring were the color code; red replace the green wires. I had to keep the old rings to attach the new actuator. I brought a couple more to keep on hand.
Bottom Line Yes, I would recommend this to a friend
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Payt Attention to the Instructiions
By John from Olympia WA
from Olympia WA
The ccntacts for this device out of the package are closed. To get them to the open state, the actuator must be energized for at least 5 minutes. Also note that there is a wide blue line onb the actuator that is very visable whrn the acutaror is open and hidden when the actuator is closed.
easy to install and works great
from Minneapolis, MN
On February 8, 2015, I changed 6 old wirsbo actuators into 6 new ones, after 8 years of use. I used Uponor (Wirsbo) A2870100 - Spacer Ring VA31H for Thermal Actuators (TruFLOW Manifolds). I lubed the valves pins with W40, and made sure I could push down the pin with my finger. Reconnected all wires, turned system on, set the temp 5 degrees higher to make sure that all valves will open. After 15 min. adjusted the temp and watched the actuators work. It took me 30-45 min to do all work. Michael. Minneapolis. MN.
Easy, out of the box, installation. Replaced older thermal valve with newer, and heftier, valve from this website.
Couldn't have been mor satisfied
from San Juan island ,WA
As easy as the old style to replace, and started working instantly.
Simple and easy
from Edgewood, NM
Replaced our older motorized actuators with these. Very simple, and they appear well made.
Hassle free direct replacement
from Albuquerque NM
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.
(1 of 1 customers found this review helpful)
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!
Does the trick
from Thunder Bay. Canada.
Works as intended.
Easier to install
from Arlington, WA
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.
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