Search: Posts Made By: PDA215
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Replies: 2
Views: 2,923
Posted By PDA215

Repair a Taco zone valve?

A Taco 571-2 zone valve power head isn't working reliably on our hydronic system.

When the thermostat calls for heat the zone valve opens but it wont send the signal to the circulator relay to...
Replies: 18
Views: 2,447
Posted By PDA215

Vilord, Thanks for the reply and insight and...

Vilord,

Thanks for the reply and insight and link.

It wasn't that costly so any savings would probably be gained over the life of the boiler. Hopefully it'll work out well.

Craig
Replies: 18
Views: 2,447
Posted By PDA215

Advantages of outdoor reset sensor?

I've installed a Weil-Mclain CGA-3 (natural gas) and it has an option to install and Outdoor Reset sensor.

I do understand the purpose of it but wonder if the $26 for the sensor will really...
Replies: 13
Views: 1,879
Posted By PDA215

Spott, The RA89A works perfectly with my...

Spott,

The RA89A works perfectly with my zone valves (only 3 have been connected so far). But it only works because I removed the RA89A jumper between terminals 1 & 3 rendering the relay, that...
Replies: 13
Views: 1,879
Posted By PDA215

The method I described above works. It's pretty...

The method I described above works. It's pretty simple.
Replies: 13
Views: 1,879
Posted By PDA215

Spott, There's a copper jumper between...

Spott,

There's a copper jumper between terminals 1 & 3. Once I removed that jumper, terminals 3 & 4 become "dry"- no voltage between them.

Is the following correct?

- The RA89A can be...
Replies: 13
Views: 1,879
Posted By PDA215

Spott, Very helpful. Here's an update- ...

Spott,

Very helpful. Here's an update- Just to experiment with the Honeywell RA89A switching relay I connected power 120 VAC to the proper terminals of the unit- 1 & 2 (pretty sure they are the...
Replies: 13
Views: 1,879
Posted By PDA215

Spott, They aren't wired. The old system...

Spott,

They aren't wired. The old system was ripped out a few years ago. My father didn't use zone valves but used B&G circulators to provide 3 zones. Each circulator had a Honeywell RA89A...
Replies: 13
Views: 1,879
Posted By PDA215

Carbide, Well, what I assumed is that I...

Carbide,

Well, what I assumed is that I would only be connecting 3 zone valves using only 1- 24v transformer.

There's a schematic on the Taco 570-2 (3-wire) zone valve box that shows 6 zone...
Replies: 13
Views: 1,879
Posted By PDA215

1 circulator & 1 switching relay for 6 zone valves?

In my new boiler installation there are 6 zone valves, 6 thermostats and 1 circulator.

Can 1 switching relay be used instead of 6 switching relays? That is- connect the thermostats to the one...
Replies: 11
Views: 543
Posted By PDA215

Thanks. We'll give it a try and let you know how...

Thanks. We'll give it a try and let you know how it turns out.
Replies: 11
Views: 543
Posted By PDA215

On which side of the convector are they...

On which side of the convector are they installed- the supply in or return out?
Replies: 31
Views: 1,197
Posted By PDA215

The old boiler is long gone. I've now...

The old boiler is long gone.

I've now installed a new boiler, or rather I'm still in progress on it. It has 6 zones but only 2 have been finished so far. So far....so good.

I'm using PEX...
Replies: 11
Views: 543
Posted By PDA215

Spott, Thanks for the help. We have a lot...

Spott,

Thanks for the help. We have a lot of ball valves laying around. Would that suit the purpose or do balancing valves have some super special characteristic? My guess is they're only...
Replies: 11
Views: 543
Posted By PDA215

Spott, That makes sense. My friend said...

Spott,

That makes sense. My friend said that when he removed the old supply and return lines he also removed what he assumed were shutoff valves located only on the supply side of each convector....
Replies: 11
Views: 543
Posted By PDA215

Last convector cooler than first?

I'm working on a friends boiler system who's having some heating problems.

His house is on one floor with only one heating zone and 4 convectors. The boiler temperature is set to 170 F.

The...
Replies: 31
Views: 1,197
Posted By PDA215

Found- easy heat loss calculator

I found a really easy heat loss calculator. It costs $39 for a 60 day use and then it expires.

I bought it and used it. The results were within a few thousand Btus of the Solar heat loss...
Replies: 31
Views: 1,197
Posted By PDA215

I'm not a iPhoner. I don't understand what...

I'm not a iPhoner.

I don't understand what you're talking about. It's too vague and disjointed.

Never heard of Lochinvar and wouldn't buy from SupplyHouse.com if you paid me. Called them last...
Replies: 31
Views: 1,197
Posted By PDA215

No, 82.3% according to US Boiler.

No, 82.3% according to US Boiler.
Replies: 31
Views: 1,197
Posted By PDA215

Thanks Bud. I'm working off of unicode and Linux...

Thanks Bud. I'm working off of unicode and Linux so the Alt doesn't work.

Well, for privacy the bottom line is IP address. Everything else is cute and fine but of no real value to data miners...
Replies: 31
Views: 1,197
Posted By PDA215

Maine? No, I'm in PA. I'm just sick and tired...

Maine? No, I'm in PA. I'm just sick and tired of all the questions you have to answer just to sign up for mostly anything on the i-nets. "We want your soul", etc.

Data is the new "oil" of the...
Replies: 31
Views: 1,197
Posted By PDA215

Bud, I added a little extra loss to the...

Bud,

I added a little extra loss to the overall analysis to get a higher figure. The intention in the future is to connect a "side arm" to the boiler for domestic hot water...maybe.

Too many...
Replies: 31
Views: 1,197
Posted By PDA215

Steve, I saw them but most are dead links.

Steve,

I saw them but most are dead links.
Replies: 31
Views: 1,197
Posted By PDA215

Bud, Here's how I did the rough....really...

Bud,

Here's how I did the rough....really rough estimate; 25 x SF or, 25 x 2500= 62,500 Btu

Using the Heat Loss Calculator the figure was about 64,000 Btu.

The new system will have 6 zones....
Replies: 31
Views: 1,197
Posted By PDA215

Just tried the Heatloss Calculator here- Home...

Just tried the Heatloss Calculator here- Home Heat Loss Calculator (http://www.builditsolar.com/References/Calculators/HeatLoss/HeatLoss.htm)

The result I got was close to what I had estimated. ...
Showing results 1 to 25 of 33
 


 
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