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Joined on December 29, 2008

Last Post on August 23, 2014

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@ April 9, 2011 7:16 PM in On the Vitodens 200-W, WB2B


I think Tim is trying to put in his manual what the F4 code states. They say to measure the ionization current but they don't give any info on what that current should be nor based on what parameters. If you were trouble shooting that code you wouldn't be able to perform the test based on the information given in the Viessmann Service Manual in the field without having to call the tech line. Something as easy as taking a reading shouldn't have to bog the service guy down by having to make a phone call.

Zone Sentry

@ April 9, 2011 6:10 PM in Taco zone valves

The Zone Sentry heads pop on the valve bodies. This was the first version of a Pop-Top for them when they bought out another company. I've seen plenty of issues with these old style heads. Suggest you take a look at the Zone Sentry heads for the retrofit change.


@ April 9, 2011 6:07 PM in Viessmann Atola AR145

There are only 2 Parts currently available for the MC. The Timer and the Cube. Nothing else. They do though, make a retrofit kit to enable you to install the new Vitotronic control packages to boilers with old MC's.

The Viessmann Way

@ April 9, 2011 6:01 PM in On the Vitodens 200-W, WB2B

That's the Viessmann way. They are very protective. Ian Lindsey is running Viessmann US until a replacement for Rich is found.

Hopefully I can get an anwser for you and for me. Like I said, I haven't had a situation where I had to perform that procedure so never looked for it. In the next week or so they are also giving another vent alternative to the current venting material. They are basically taking the polyprop currently used in the coaxial and offering that as another venting method. I have a couple of issues with it which I have passed on waiting for an answser. Has nothing to do with the vent method or the material but the lack of footage...Only offering it in 1.6 and 3.6ft...I don't like the idea of all the joints. Generally in the field if we have to 2 pipe its for a reason and only being offered 3.6ft as a max doesn't do me any good.

Dbl Post Sorry

@ April 9, 2011 1:10 PM in On the Vitodens 200-W, WB2B

Ionization Current

@ April 9, 2011 1:10 PM in On the Vitodens 200-W, WB2B


Are you looking for the ionization current? I also don't have that anywhere in anyting that I have. I'm assuming your looking for the measurement as it pertains to fault code F4 "No Flame Signal."

I sent an e-mail off. Haven't had to perform that measurement so never looked for it.

IQ Card

@ April 7, 2011 9:22 PM in Burnham Plug and play

The outdoor reset card has priority built into it. Terminals 3 & 4 on the card. You use ZC ZR in the IQ control to power the domesitc pump. The installation manual gives clear directions as well as the wiring. Suggest you take a few minutes to review it and then pass it on to the electrician..

Double Post Sorry

@ April 7, 2011 8:09 PM in Vent supports for PVC venting

ASTM 1785

@ April 7, 2011 8:08 PM in Vent supports for PVC venting

Anyone that installs a condensing boiler that flue gas temps exceed 140 fail the standard period. No argument about that. The scope of the standard clearly states that. So every person that installs PVC venting on a system that has an indirect of curve bangs off 180 is responsible for the vent.

Read the installation manuals. The mfgs all list this standard but that also state that it is the installers responsibility to make sure the pipe is being using in an application to the standard. It's not giving contractors a green light to vent with PVC at will. That's why they list the other standards that AL24C, CPVC, ULC-S636 meet. I attached my case.


@ April 7, 2011 7:59 PM in High Efficiancy Boiler Installations

I can only speak for what I know. Here the local utility offers consumers rebates for the installation of high efficiency equipment. They also inspect each job that an application for rebate was submitted. Here's the problem, they are only inspecting to make sure the equipment installed meets the requirement. That's the problem and here is why.

The utility companies have to have their programs approved by the state agency that is responsible for consumer relations. They dictate what qualifies and what does not. The utility companies just propose the program. The utilities also do not administer the program. In the case here, Central Hudson and Orange & Rocklands programs are administered by Honeywell. Honeywell is the one cutting the checks and they are also the ones doing the inspections.

I know one of the inspectors. He is a heating and hvac contractor with years of experience in condensing, radiant, geo and solar. We sat down and had a great conversation just on this subject.  This is how an inspection works.

He has a form that he fills out. It has nothing to do with the installation. All he is there to do is verify the installed equipment. He is not allowed to say one thing about the installation nor is he allowed to report back of shotty installations. He says in all his years he has never seen more consumers ripped off. Boilers with no outdoor sensers hooked up, improper venting, improper piping and the list goes on and on. He was on one job where the entire boiler was piped with pex including the exp tank laying on the floor piped pex. Doesn't matter the consumer still recevied that rebate check.

The responsibility is not the supply houses. It's the agency that promotes, offers and inspects so those checks are cut. I always find that local newspaper reporters flock to wirte articles about how the local utlity is helping consumers but you can't get a darn one of them to write about the shotty installs or consumer rip offs that the program actual contributes too.  The pereception of saving energy in most cases just the opposite. Added service calls, cost to fix etc far exceeds the savings.
Now I don't just blame the utilities or the administrators. I also blame the consumers themselves. I know of mountains of jobs lost by quality pros based on price so in some cases the consumer gets what they paid for but the programs should still be monitored better. That same state agency that is worried about what the utlitites offer should be worrying where the real fraud and safety issues are and thats in the consumers home..

I Was Hoping

@ April 1, 2011 6:23 PM in Installing a new system

That my post would turn on the lightbulb upstairs but guess not. I'm with Ice.

What's The Problem

@ April 1, 2011 6:21 PM in Viessmann Guy / Harrisburg, PA

What's the problem? I'm 3 hrs away and willing to help..Is it a new Vitodens or the previous version?


@ April 1, 2011 4:11 PM in Installing a new system

Here's how the warranty would work.

I warranty my joints from leaking and that I properly piped and installed the boiler per the mfg installation instructions. You own the rest. Rest meaning any part that you purchased to include the boiler.  So if you would like me to install it for my current labor rate sure but you should also know that any time I have to spend running to go get a part or replace a part that you provided that isn't right you are paying for my time.

Holy Cow!!!!

@ April 1, 2011 10:49 AM in Vitodens LLH Sensor

I just called to get a price on these and only in the 1-1/4" version....Way out of the ball park when comparing it to the competition such as Caleffi. Caleffi comes insulated...


@ April 1, 2011 7:59 AM in Vitodens LLH Sensor

I don't use the Viessmann LLH much. I use the Caleffi on the 200's. It comes with insulation and has a port to thread in a 1/2" honeywell well to insert the sensor in it. I just don't like the air removal on the Viessmann header. The first version was terrible and last year they made the change to the newer LLH but still would rather have better air removal then what the Viessmann header has in it.  

Ice I have them in stock with the insulation kits if you need to get that job closed up. Drop me an e-mail.

Taco Zone Sentry

@ April 1, 2011 7:37 AM in which pump

Take a look at the Taco Zone Sentry's. Ball valve style, 3yr warranty, 12vlv's on a 40va transformer. Much better flow rate through them also.

I would also tell you to use the Taco Bumble Bee ecm pump but it's not on the street yet. I just recevied my test pump yesterday. It's nice, stainless steel housing, ecm motor and I'm believing that pumping using Delta-T as a parameter is better then delta-p (Alpha or similar). 

Sensor Location

@ April 1, 2011 7:09 AM in Vitodens LLH Sensor

Strap it on the supply side pipe going out to the system. Better yet install a copper x Female tee and use a 1/2" short honeywell well to slip the sensor in.


@ March 31, 2011 7:14 PM in indirect or not?

I'm not meaing nor intending to be rude but your concerned that an indirect may not be efficient yet you have a 100,00 btu boiler heating 1700 sqft. Your concern should be reducing that load because that boiler is WAY oversized. Do a heat loss and you will see that you only need half or less. That 86% is a not a true statement as to the "Heating Systems" efficiency. It only relates to the burner efficiency. So what that your making 100,000 btu's at 86% efficient. In reality the system is more like 50%. All that extra energy being made that doesn't need to be made is going up the chimmney...This is the main reason why a cold start boiler is more efficient. Reduce chimmney loss.


@ March 31, 2011 7:03 PM in Buffer Tanks

What are the modulation rates of the boilers and will they be cascading? Whose mod/con are you using?

I Struggled

@ March 31, 2011 12:32 PM in which pump

With whether to post it or not. I felt bad, since he has already purchased the boiler and has a contractor helping him with the install, I thought it was the right thing to do. I'd rather see him do it right then end up in trouble which from his post is where he is heading.


@ March 31, 2011 7:03 AM in which pump

I would be using a properly sized pump like the Grundfoss Alpha, Taco VDT or similar pump and zone with valves. I left you a present attached.

Define Cold

@ March 30, 2011 10:12 PM in Can't get warm

You said it feels cold. What is the thermostat reading in the room its in? Is that the room that feels cold or is it another room?
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