Heating Help

go delta t!!

@ June 4, 2010 3:26 PM in Taco ECM`s?

they are working flawlessly.  thanks for the opportunity to mention that. 

Taco ECM , and delta T pumps

@ June 3, 2010 1:19 PM in Taco ECM`s?

The delta T pump is a Hugh success!!  Thousands have been installed, and are working just fine.  I’m not sure what issues you had, but you can contact me directly togo over it.  As for the new ECM smart pump; the naming of the pump has no bearing on the pump release.  The pump is out on limited bases finishing up normal field testing, and will be released when ready.  Hopefully, soon!!    

sticky cartridge assembly

@ June 2, 2010 10:38 AM in sticky 006

Good morning
The 006 does have a stainless steel cartridge assembly suitable for open systems.  After reading your tread, it appears you’re pumping potable water which could have high amounts of lime, or sulfur causing havoc on the pump.  The other potential problem would be Cavitation which could be very harmful to the pump causing the pump to fail catastrophically.  Perhaps you can provide a piping schematic that I can review.  This will give me a better understanding of the system dynamics to help diagnose the problem.  My email address is [u][color=#0000ff]joemat@taco-hvac.com[/color][/u]

Taco 570 series

@ December 23, 2009 12:39 PM in Taco zone valves and honeywell thermostat not compatable?

I posted a technical document released many years ago explaining how this valve works.  there is no compatibility issue with Honeywell thermostats. if you have an anticipator on the thermostat, it should be set to .9 which is the amp load on the 570 series valve.

Taco VDT

@ September 29, 2009 3:29 PM in Save money with circs

The Taco VDT pump works the same way.  See attached literature, and compare that The video was not fair to Taco.  Will you identify yourself so we can discuss your brief inaccurate demo?

Taco Visit

@ August 28, 2009 10:37 AM in A Year ago today!

It was a lot of fun!!  What an incredible dinner, I would love to do that once a week!!  Johnny should get the credit though, he planned dinner!! 

Taco visit

@ August 26, 2009 9:27 AM in A Year ago today!

Good Morning Alan;
I did not realize you were going through a difficult time in your life.  I'm happy to know things have dramatically improved for you.  I must admit, you looked good Monday when visiting us at Taco.  Your group from Oil Heat Cares is a classy bunch of guy’s that are a lot of fun to hang around with.  We had a lot of fun, and look forward to your next visit. 

series pump, gravity system

@ August 26, 2009 9:16 AM in Double Pump

two pumps in series in an old gravity system!!  The water must be racing through the piping cauing velocity noises that could sound like air noises.  

Acknowledging some of the industries finest ready to assist.

@ August 24, 2009 10:08 AM in Where is,,,,,,

• Observations I’ve made from my own experience on Heating help “The Wall” is; there are regulars better known as Wallie’s with a wealth of knowledge in this industry, and are always ready to assist when indirectly called upon.  Graciously, this knowledge was available on the wall, subsequently helping a lot people, including myself.  
• Brad White,, rjbphd,, bob young, boilerpro, Charlie from W/Mass, Scott Milne, J.C.A.(Chris), Dan Foley, Ron Jr, Dave(in Denver) etc, Thanks for taken time to share your knowledge with others.   

Taco PC700-2

@ August 18, 2009 2:32 PM in Incrasing efficiency in a oil fired boiler

The Tankless boiler needs to operate at the minimum temperature approx. 140 degrees, so when you have a DHW demand the boiler readily delivers.  This type of system is difficult to run more efficient, because of the minimum temperature requirement.  In my opinion, the best alternative to the Tankless coil is an indirect water heater.  Now you only fire the boiler when the water heater internal temperature drops below the minimum temperature set point.  The indirect DHW heaters alternative, minimizes the risk of a flooded basement, and eliminates the need to maintain 140 degrees 360 days a year. 
 
Additionally, you can use the Taco PC700-2 to operate the boiler based on outside air temperature, and operate ate the temperature required to satisfy the load, without firing to high limit.  The only time the boiler fires to high limit, is on the coldest days, and when the DHW calls for heat.  This system begs you to show it off to your Saturday night guests at the house!!    
 
For your convenience, I attached a tutorial on outdoor reset

Taco, hy-vent

@ August 14, 2009 3:30 PM in How religious to be about homeowner instructions?

Guess their being overly cautious forcing you to be more vigilant.  

Taco, Hy-vent instruction sheet

@ August 13, 2009 12:45 PM in How religious to be about homeowner instructions?

The Taco Hy-vent instruction sheet gives specific installation instruction, and a brief synopsis of the operating characteristics.  I did not see anything about manual releasing air once a month.  For your reference, I attached a copy.  

Taco, ZVC406-EXP

@ August 13, 2009 12:03 PM in Best strategy for combined heating / cooling thermostat

After reading your thread, I cannot see why the Taco ZVC406-EXP would not work.  The zone valve control is a great facilitator for wiring thermostats, and corresponding zonevalves, or actuators.  These controls are commonly used in many HVAC applications, and are expandable up to 20 zones.  Great feature when using outdoor reset, or prioritizing DHW> 

@ June 30, 2009 11:23 AM in taco zvc 404 with erie zone valves

Apparantly, the endswitch on the zonevalves is not working, or you do not have an end switch at all. The 3, and 4 terminals are looking for an endswitch closure to pull in the main endswitch, and extra endswitch. to circumvent the need for en endswitch on the zonevalve, place a jumper between the 3, and 4 terminals to simulate an endswitch closure. This should remidy the problem. Additionally, you can energize the extra endswitch with 120 volts to run a system pump, or use the C1, C2 terminals on the boiler aquastat; either way will work. If you have a seperate DHW pump, you can use the NO/NC terminals with the extra endswitch to break the 120 volt supply to the COM terminal.

@ June 9, 2009 2:34 PM in Grundfos UP26-99F = what model Taco pump?

The Taco 0013 would be my first choice, and the 0014 close second. For your convenience I attached both curves so you can compare the two. Hopefully, this helps

@ May 18, 2009 10:34 AM in Happy Birthday John White - Alan R. Mercurio

Happy Birthday Johnny!!

Document TD10 selecting circulators

@ May 15, 2009 10:11 AM in Pipe sizing

Great resource for sizing circulator, and the correct pipe diameter to accommodate the flow rate require to satisfy the load. Good stuff!!

Response

@ May 14, 2009 4:24 PM in internet based control systems

Richard, The last issue I was aware of was a controller problem that was resolved with an RMA this past January. If you are having any issues please contact me and I will be more than happy to help you and your staff resolve them. I will be in RI next week and can visit your office to help, just give me a call. I left you a voice mail message as well as an email with my contact info. Sincerely, Tom Polansky

@ May 14, 2009 2:01 PM in ghost heat

It is times like this where you go right over to a positive shut off in both directions, and install a zonevalve. This will eliminate the ghost flow, and the time spent trying to diagnose the root cause of the ghost flow.

Taco D'mand system

@ May 14, 2009 1:54 PM in OT-recircs

I attached some literature on the Taco D'mand pump. Great tool for an existing system retrofit, when you do not have the luxury of a dedicated return line.

@ May 14, 2009 1:53 PM in internet based control systems

I'm waiting to hear back on your question. I'll be in touch. It would easier, if you provide an email, or telephone number.

@ May 11, 2009 2:40 PM in Brazed Heat Exchangers

yes, the Delta T pump will work nicely in your application. Because the system dynamics are constantly changing when zoning with zonevalves, it makes perfect sense to use a circulator that can adjust with the system changes. Another alternative is a Differential by-pass valve, and a constant speed circulator.