Heating Help

controls

@ May 11, 2009 10:01 AM in internet based control systems

Here is a quick description of the product operation without getting in too much detail. The iWorX control system architecture consists of an LCI2 (Local Control Interface) at the top and then all the radiant and HVAC controls below. The LCI2 communicates to the controllers via a LonWorks network and the LCI2 can be communicated to over the World Wide Web. There is typically an LCI2 at each installation since this is currently what is used by the installer to configure each controller and the building owner to monitor the system. The controllers are pre-programmed with typical applications in mind and this eliminates the installer from having to know a programming language and also eliminates network tools/software. Basically, the installer configures the controller’s settings to match the application. The LCI2 can be configured to send email alarms so that problems are detected before there is a crisis. Once notified of an alarm the service tech can connect to the LCI2 over the www and can evaluate the situation prior to making the service call. Let me know if you need any additional information.

Happy White Obituary

@ April 15, 2009 1:47 PM in Happy White (Johnny's Mom) has passed. (Dan H.)

Happy White Obituary

@ April 15, 2009 10:15 AM in Happy White (Johnny's Mom) has passed. (Dan H.)

Dan I mention before; “An American Love Story” was beautifully written, and captured Happy, and John White Sr's true character. That was nice of you to make it available again. It’s worth rereading!! I feel blessed to have had the opportunity to meet them. They have both passed on to spend eternal life together. http://www.legacy.com/providence/Obituaries.asp?Page=LifeStory&PersonID=126088013

@ April 9, 2009 2:44 PM in Taco VDT question

Hi Dave Taco began machining a bore into every 00 casting to minimize inventory. The correct IFC # is 006-047RP if you want to press one in. The 008-VDTF6 pump is not offered with an IFC, because it's commonly used as a system pump, with multiple zone valves. The IFC is not needed, so it didn't make sense to offer one. Hopefully this helps.

johnny drives a smart car

@ March 20, 2009 3:01 PM in hvac

Tired of rising gas prices, Taco, Inc.
CEO John Hazen White, Jr.
opts for a Smart car.

For the latest Taco news, visit www.Taco-HVAC.com

@ March 20, 2009 11:22 AM in test

Variable speed circulator functionality video

@ March 20, 2009 9:22 AM in Variable speed circulator functionality video

Yesterday I was sitting at my desk on St. Joseph day, wondering what great gift I would be blessed with on my day. Growing up in an Italian family with the name Giuseppe, AKA Joseph, St. Joseph day was always special. Anyway, I recieved this e-mail about variable speed pumping, but no zeppoloe'. enjoy!!

@ March 19, 2009 9:48 AM in Radiant loop flow

John The Taco mixing valve doesn't appear to be the hindrance. Perhaps you can call me here at Taco to go over your application.

@ March 19, 2009 9:26 AM in DC Solar pumps for radiant

Taco recently introduced a line of solar products. For your convenience I attached literature.

@ March 5, 2009 11:12 AM in flow checks leaking through

Is this a supply/return manifold piping, or primary secondary piping? I have to agree with Hot Rod; the pressure drop across the valve must be higher then the pressure required, which is forcing open the check. Some other possibilities; do all the circulators have the same operating characteristics? Is there a system pump energized off the C1, C2 terminals?

@ March 5, 2009 10:13 AM in Taco zone valves

A good rule of thumb; if the thermostat requires a constant 24 volts, then you need to use the resistor typically supplied with the thermostat. If no resistor was supplied; contact the thermostat mfg for the appropriate ohms resistor that will allow enough voltage to trickle through. Incidentally, the resistor is required because of the inherent intermitting heat motor on the Taco 570 series, and not because of the amp load.

@ February 26, 2009 1:19 PM in code violations worth mentioning.

Check out the attached pictures sent to me this morning. this was so funny, I felt compelled to share them.

@ February 26, 2009 1:17 PM in The Taco website - Mad Dog

That John Barba's on top of his game

@ February 19, 2009 10:06 AM in hot water recirc

Agreed Mark; the timer, and clamp on aquastat are a great combination. The aquastat allows the pump to cycle on and off within the parameters set on the clock timer. This is a great opportunity for people that have a regimented weekly schedule. The same philosophy applies to setback thermostats. Why operate your boiler when no one is home to enjoy the benefits. The D’mand pump is great for retrofit applications and for tankless heaters too The erosion issue can be minimized with low head circulators. I get calls all the time from customers complaining about noise emanating from the recirculation piping. After one or two questions, you quickly uncover a high head pump installed. Sometimes, it’s because of ignorance to pump sizing. Taco, offers an intuitive guide for selecting circulators available at www.taco-hvac.com. It’s one of approximately 35 documents encompassing most of the Taco product lines found in the Radiant made easy application guide Great resource tool!!

@ February 12, 2009 1:53 PM in operating costs

@ February 11, 2009 2:04 PM in Radiant question

The fact is you have 0010 pumps burning out after a few weeks of service. What is the failure mode? Taco pumps are very robust, and of a high quality. Typical applications will allow the pumps to run for several years. Taco even offers a generous three year warranty on the replacement cartridge. There has to be a system related issue detrimental to the pump. Did anyone consider osmosis?

@ February 4, 2009 11:16 AM in Mixing Valve

The Taco 5000 series is not a 1016 valve either, or comply with the ASSE code. For a complete listing of valves that comply visit the ASSE website. Hopefully, this helps you.

@ February 4, 2009 10:27 AM in Polaris Loop for Aux Heat

Joe Perhaps the total dynamic head is greater then the capacity of the 007 circulator. Is this a new problem, or existing problem? That's my theory anyway.

@ January 16, 2009 8:47 AM in New install and questions about Taco controls ( Ron Jr. )

Back in December of 2005 the product manager for the electronic controls division released a document explaining taco's need to change the alternative wiring schematic for the switching relays. For your reference I attached a copy, along with the original wiring diagram. Perhaps, reading it will shed some light on why Taco made the necessary change. However, if you need to use the tank less wiring schematic, you can refer to the old drawing (also attached), as long as you keep the L8124, and the SR503 on the same safety switch. Following this schematic will de-energize ZC when the boiler temperature drops below the min set point prioritizing the tank less coil. FYI, the boiler maintains the 140 degrees approx. so hot water is available on demand. If the demand is excessive, and boiler temperature drops below the minimum set point the L8124 will drop out ZC so the circulators drop out. If your objective is to retrofit the tank less, and plan on adding an indirect water heater, it would make economical sense eliminating the minimum temperature set point on the L8124, and using the cold start boiler schematic. This will allow the system to run more efficiently.

@ December 23, 2008 10:14 AM in AHR Show in Chicago

You're the best!!

@ December 16, 2008 2:29 PM in Why doesn't my pump doesn't shut off?

Apparently, the system pump as no other way of energizing with a demand so I'm assuming the plan was to let the pump run. If you're using a boiler reset control, modulating the boiler, the system pump can not turn on and off with the boiler. An alternative is to let the system pump run continuously.

@ December 10, 2008 10:19 AM in Problems with Taco zone valves

Hi Rich; Truly it’s unfortunate you experienced problems with the ESP valves. Apparently you have the 2006 vintage where we uncovered some power supply issues that may have caused havoc with the internal electronic control. The root cause of the issues was a combination of factors that I believe our engineering department has addressed with the current generation of EBV valves. Taco engineered a more robust board that seems to be working without any problems. Of course the valve actuators are covered under warranty that can be facilitated through the local Taco dealer. Perhaps you can call me direct at 401-942-8000 X 484, if you would like me to personally assist you with a warranty claim.