I used one on a new install for 2 zones. I had to take it off it was was trying to maintain that 20 Delta and was slowing down to the point it was making a grinding noise throughout the house
If you have two zones of radiators, one hot, one cold. the cold one starts calling, what happens? Wont the pump sense a high supply, low return, speed up and send a slug of cold water into my boiler? Seems bad, maybe i am misunderstanding, but seems like a good way to shock a boiler in a high volume distribution system.
+Daniel Nowitz I understand what you're saying but water that's 50 degrees is not going to shock a boiler especially a water boiler it would shock it if it's a steam boiler but you're right the pump will speed up and introduce colder water into the boiler which mixes with hot boiling water thanks for watching
It seems what would be ideal is a delta-t mode w/ boiler protection; i see they have a set-point heat w/ boiler protection. If I could set it up for delta-t 20 degrees and also boiler protection at 140. It would work with my outdoor reset and also slow down flow to protect the boiler as it comes up to temp. with the set-point heat w/ boiler protection i cant really take advantage of outdoor reset because the setpoint is presumably static. anyway, thanks for making this video. The documentation (s3.amazonaws.com/s3.supplyhouse.com/product_files/Taco-VT2218-HY1-FC1A01-Install-Instructions.pdf) doesnt exactly explain when the pump will speed up or slow down in delta-t mode. From your video it seems that the pump will speed up anytime delta t is both greater or lower than the setting. Then slow down to the lowest speed once it is sure it cannot widen delta t (after the three minute startup cycle).
Is this a good idea to use these pump in 4 zones house? Our zones is very different in length ( not sure if it makes difference) . We have to replace the boiler I would like to upgrade the system to most efficient pumps. Thanks!
Good video. You always posts good videos. I never knew Taco had a delta t control out? All service work is becoming complicated in any hvac field. Circuit boards, navigating thru stuff like the taco delta t and much worse. Hard to keep up on it. Thank god we can google now on our phones. I guess it will weed out the weak, lazy hvac techs. I plan on subscribing to your channel. We both work in the metro Detroit area. So if I see you in a supply house there I will say hi. As long as you don't cut off your beard. I will recognize you lol.
Catherine Sweeney You need to look at the video again make sure you watch the whole video Before you comment Pump is on the return side and is pumping away from the air scoop The boiler is a neutral zone
@@MiHeatingGuy I watched the video as well and saw the same thing. The circulator should never be on the return. Period. Correct location is to install it on the supply, after the expansion tank and air separator. Look at manual for the VT2218 if you doubt me. Catherine was right. You sound uneducated about how the laws of thermodynamics in this video.
@@daveschroers4222 Uneducated? If you look at the Taco manual it says "preferred" and "alternate" . Right there in the manual it states "ALTERNATE PIPING FOR ZONE VALVES ON BOILER RETURN".
georgeEPC This video is a simulation of what the pump does Because I was using the valves to simulate how the pump actually works on temperature thanks for watching
I used one on a new install for 2 zones. I had to take it off it was was trying to maintain that 20 Delta and was slowing down to the point it was making a grinding noise throughout the house
Was the pump running dry when you had the flange valve off?
could this pump be used instead of a mixing valve if your boiler output is 180 going to 120 radiant heat?
If you have two zones of radiators, one hot, one cold. the cold one starts calling, what happens? Wont the pump sense a high supply, low return, speed up and send a slug of cold water into my boiler?
Seems bad, maybe i am misunderstanding, but seems like a good way to shock a boiler in a high volume distribution system.
+Daniel Nowitz I understand what you're saying but water that's 50 degrees is not going to shock a boiler especially a water boiler it would shock it if it's a steam boiler but you're right the pump will speed up and introduce colder water into the boiler which mixes with hot boiling water thanks for watching
It seems what would be ideal is a delta-t mode w/ boiler protection; i see they have a set-point heat w/ boiler protection.
If I could set it up for delta-t 20 degrees and also boiler protection at 140. It would work with my outdoor reset and also slow down flow to protect the boiler as it comes up to temp.
with the set-point heat w/ boiler protection i cant really take advantage of outdoor reset because the setpoint is presumably static.
anyway, thanks for making this video. The documentation (s3.amazonaws.com/s3.supplyhouse.com/product_files/Taco-VT2218-HY1-FC1A01-Install-Instructions.pdf) doesnt exactly explain when the pump will speed up or slow down in delta-t mode. From your video it seems that the pump will speed up anytime delta t is both greater or lower than the setting. Then slow down to the lowest speed once it is sure it cannot widen delta t (after the three minute startup cycle).
Is this a good idea to use these pump in 4 zones house? Our zones is very different in length ( not sure if it makes difference) . We have to replace the boiler I would like to upgrade the system to most efficient pumps. Thanks!
It's a very good option
Thanks for footage- answered a lot of questions
Good video. You always posts good videos. I never knew Taco had a delta t control out? All service work is becoming complicated in any hvac field. Circuit boards, navigating thru stuff like the taco delta t and much worse. Hard to keep up on it. Thank god we can google now on our phones. I guess it will weed out the weak, lazy hvac techs. I plan on subscribing to your channel. We both work in the metro Detroit area. So if I see you in a supply house there I will say hi. As long as you don't cut off your beard. I will recognize you lol.
I have a groundloop and my total head is 15' can i use two 007e push and a pull to get atleast 4gpm
Jordan Yes you can
Use a 008
Thats a nice pump. But you have it installed wrong. It should be on the supply, pumping away from the expansion tank.
Catherine Sweeney You need to look at the video again make sure you watch the whole video Before you comment Pump is on the return side and is pumping away from the air scoop The boiler is a neutral zone
@@MiHeatingGuy I watched the video as well and saw the same thing. The circulator should never be on the return. Period. Correct location is to install it on the supply, after the expansion tank and air separator. Look at manual for the VT2218 if you doubt me.
Catherine was right. You sound uneducated about how the laws of thermodynamics in this video.
@@daveschroers4222 Uneducated? If you look at the Taco manual it says "preferred" and "alternate" . Right there in the manual it states "ALTERNATE PIPING
FOR ZONE VALVES
ON BOILER RETURN".
Honestly that pump seems like it was all over the place it never worked well to get to the 20 degree delta.
georgeEPC This video is a simulation of what the pump does Because I was using the valves to simulate how the pump actually works on temperature thanks for watching
Do you know if the pump housing is the same as a 007? I would love to use these but can not change the pump housing.