TACO Circulator?

Joe.G

Hi, i just installed a peerless boiler in my home, it came with a 1/25 taco circulator, I have 2 ? First do I ever have to oil this unit any where, is there any kind of care I should take with it to make sure it lasts a while? Second my old circulator was a 1/12 hp is this new one strong enought for a 2 story home with hot water radiators?

P.S there seems to be a hole (tiny) on four sides on the circulator, is this a oil hole or a vent? thanks

Mark Hunt

No oil required


as for pump ability, you should have no problems.

Mark H

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Dan Peel

holes

The holes are vents for the motor casing. Injecting any fluid can short the windings. Dan

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Steamhead

That's probably a Taco 007

It is lubricated by the water in the system, the same way as the water pump on your car engine.

The lesser horsepower will work OK since the 007 does not have a shaft seal. It takes slightly more power to rotate a shaft that has a seal than one that does not.

If your system originally circulated by gravity (large pipes) and doesn't have more than 851 square feet of radiation, the pump is not undersized.

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Joe.G

How can you tell if it si under sized? and what about the beckett gun (motor), do I need to oil that?

Steamhead

Sizing Circulators

First you have to know the ratings of your radiators. These can be found in Dan's book "E.D.R." which is available on the Books and More page of this site. This book is a compilation of old radiator catalogs, and I find it very fascinating to read.

Then we have to determine if your system was originally piped for gravity circulation, which we can tell by seeing what size pipes go into what size radiators and also the sizes of the mains in the basement.

With this information we can tell how many gallons per minute the circulator needs to move, and we choose a circ that will deliver the needed amount. Here's a link to some specifics:

http://www.heatinghelp.com/newsletter.cfm?Id=125

Regarding the oil burner motor, most of the split-phase motors now in the field do need oiling every year. The newer PSC motors (the ones with a lump on the side) don't. Check the label on the motor if you're not sure if yours needs oiling.

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Joe Mattiello

Taco Circulators

do not need any maintenance. They are a wet rotor design relying on the system water to lubricate the bearings, and cool the motor windings. The 3 holes strategically placed at 3, 6, and 9 o'clock are condensate holes for draining. That is one of the reasons Taco recommends the motor be installed horizontally. For your reference I have attached an instruction sheet. Taco, Inc.
Joe Mattiello
Technical Service Technician
joemat@taco-hvac.com
401-942-8000 X 484
www.taco-hvac.com

Joe.G

What am I looking for on the motor? model number or maintenance info? I do not see any oil holes.

Weezbo

Yes , InDeed you do have to take care.......

to start one of these small"pumps" their impellers like to be In Water...if not they will not like you very much. should you inadvertantly start and run one all, is not lost..having seen this i'd recommend taking the motor off the pump and testing it in Free air...just Bump the motor if it spins ,great, if not turn it with a pair of grips..bump it again...if it spins you may have gotten Lucky. put it back together and give it a go, this time with water in the pipe. if heat comes to and leaves the pump at 18 " or so it is probably ok.....had this experience on more than one job:( some times well meaning electricians wire it to Go when the line is empty....not a good deal. once the motor replace ment thing is easy for you any time you did have a problem,valve off the pump,pull the 4 allen head screws pop a new replacement cartridge back in your good for the go.

Joe.G

Weezbo Are you replying to me? if so i am lost.

Weezbo

i have answered the What do i have to take care of part...

as to the size of the pump to preform its duties...you need to find a chart that has your new pumps curve andthe old pumps curve and see if there is some correlation ..the old one may have had a steep curve andthe oo7's may have a flat curve it doesnt mean they wont work it just means that you need one type of pump for one type of flow and another pump for another...i will look around here a min I think i have a chart on a bunch of recircs.....BRB

Weezbo

i am not good at computer stuff. did you get the pump curves

attachment for grundfoss and taco?
if so you cango to say Bell and Gossett and find the model number you replaced the taco and then look on he taco scale and the bell and gossett until you find where they intersect...that will give you an idea about flow disregard the 15-58 it isnt on that sheet.....

John White

taco circ

This is being somewhat over complicated. You do not need to oil or otherwise maintain the circ. Don't put anythin in the 4 holes, they are air vent holes. Just leave it alone. Unless I read through this too quickly(I'm in a real hurry, ) I gather the circ is running fine. It will probably outlast any product on the market. I'll stake my name on it.John White

Joe.G

I replaced a B&G 1/12 HP circulator, that is all I know about it, The circulator seems ok, it is just a lot smaller then the old one. I was just wondering how I could tell if it was under or over sized. I also will be putting a addition on and will need it to heat that part of the houes also.

jim sokolovic

Joe, the pumps you describe...

are most probably the B+G Series 100 (old one) and the Taco 007 (new one). Size of the pump does not matter in this case. The Taco can overcome a little more system restriction (head) at the lower flows, the B+G can provide more flow at the lower restrictions. If you could compare the curves for each against each other, you would see that for most residential applications which fall in the middle of these curves, the pumps are very much equal in performance. A generalization of what others are trying to express - hope this helps. If you put on an extension, you will need professional help in deciding whether to add a separate zone or if you can include it in this heating loop, judging from this thread.

Robert O'Connor_5

I replaced one of my 6 B&G 100 pumps with a Taco 07.... all went really well and the price was right too. I noticed that some of the other B&G pumps I got are mounted in a way that I may have to rotate the flanges 45 degrees or so to make clearance for the Taco 007 to fit. Whats the best way to do this to the flanges.... perhaps a pipe wrench?? Hopefullly it wont leak at the flange threads then.