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Re: Help Please! Half of Hydronic Zone not heating
If that valve is shot, then there's no way I could purge that loop properly. Right?Bingo.
Re: Boiler water/demineralizers like the Axiom Puropal method of demineralizing?
Advantages of using a cartrigde vs. sourcing DI water in containers:
Sourcing Deionized water:
1. Have to drive somewhere which wastes Time and Gas
2. Cost of the Deionized water per gallon is higher.
3. Hauling the deionized water at 8.34 pounds per gallon... i.e 30 Gal X 8.34 LBS = 250 LBS ! thats fun when you must haul it down a set of stairs.
4. Being stuck with more Plastic containers which sometimes the even the Recycling centers do not accept.
5. Have to use a tranfer pump.
Deionizing cartridge:
1. Order online and have it delivered via UPS.Fedex.USPS.
2. Cost less per gallon
3. A cartridge which weigth is probaly less that 5LBS which is easy to carry down a set of stairs.
4. Less plastic waste.
5. No need of the Transfer Pump to install from container to system
Sourcing Deionized water:
1. Have to drive somewhere which wastes Time and Gas
2. Cost of the Deionized water per gallon is higher.
3. Hauling the deionized water at 8.34 pounds per gallon... i.e 30 Gal X 8.34 LBS = 250 LBS ! thats fun when you must haul it down a set of stairs.
4. Being stuck with more Plastic containers which sometimes the even the Recycling centers do not accept.
5. Have to use a tranfer pump.
Deionizing cartridge:
1. Order online and have it delivered via UPS.Fedex.USPS.
2. Cost less per gallon
3. A cartridge which weigth is probaly less that 5LBS which is easy to carry down a set of stairs.
4. Less plastic waste.
5. No need of the Transfer Pump to install from container to system
Re: Boiler water/demineralizers like the Axiom Puropal method of demineralizing?
You should read the German VDI 2035 or the North American ANSI H 1001.1 (None Chemical portion)
You can PM me or call low energy products in Denver CO 1 800 873 3507. Talk to Seth or Tom.
You can PM me or call low energy products in Denver CO 1 800 873 3507. Talk to Seth or Tom.
Re: Your nightmare...
INTPLM... freaking ouch on the watch band. No way to flick it off... just had to take it huh? That sucks. I enjoy watching younger guys solder. ( although now all they want to do is Propress ). I normally do a couple joint and show them... then guide them thru where to put the heat, how much solder is enough etc. Vertical joints seem to give them the most trouble. As you pro's know... its all about the heat and where to put it. My worst burn was from pipe welding. I was in a rush and a bit over confident in my abilities to weld a joint I had to lay down to get the bottom. A big ball of molten flux dripped off and got me right in the crease of the inside of my elbow. Mr cocky decided not to throw the welding leather jacket on.. Did you know that burns get infected really easy? They do... still have the scar.
Steve
Steve
Re: Help Please! Half of Hydronic Zone not heating
Are your balancing valves upstream or downstream of the drains on each loop? If they're downstream, you can shut off the suspect zone, open the zone valve, put a hose on the drain, put the hose in a bucket of water, and open the drain and check for flow. The system pressure should be enough to drive water through the loop and into the bucket. If the makeup water is on it should flow continuously. By putting the hose in a bucket you can see if air comes out.
In order for this to work you have to make sure the balancing valve* is working.
*(From the picture I think it's more of an isolation valve than a balancing valve. Quarter turn ball valve? Isolation).
In order for this to work you have to make sure the balancing valve* is working.
*(From the picture I think it's more of an isolation valve than a balancing valve. Quarter turn ball valve? Isolation).
Re: Help Please! Half of Hydronic Zone not heating
In an earlier post you had wondered if the circulator was working. If the circulator is working, you would expect while it's running the pressure would be higher on the outlet side and lower on the inlet side. When it's off you'd expect them to be the same.Probably 3 feet vert distance.
What is the vertical distance between the boiler drain and the spot where you tested?
When you cut the power, does the pressure on the loop that's not working change?
With zero flow you'd expect the non-working loop to be at boiler pressure. That's what I'm trying to reconcile.
From what I remember the pressures equalize when powered off.
I'll check again tomorrow.
If pressure doesn't change when powered off... What would that allude to?
If pressure does equalize What would that mean?
The boiler drain is very close to the outlet of the circulator so it's a reasonable substitute measurement.
With a loop that is working, what I would expect is that when the circulator is running the pressure upstream of the circulator would be somewhat lower. When the balancing valve is closed the pressure rises. That's what we're seeing on the loop that's good.
Now, correct me if I'm wrong, but what we're seeing with the loop that isn't working is:
* Pressure is lower upstream of the circulator
* Closing the balancing valve on that loop has no effect
* Closing the balancing valve on the adjacent loop has no effect
* No flow through the loop
If the loop were blocked or capped, closing the adjacent valve would cause the pressure to rise, there'd be zero flow through the circulator.
It could well be that the balancing valve on the suspect loop is shot, that would explain why closing it doesn't affect anything.
But the only explanation I can come up with for a pressure drop across the circulator but no flow is air in the pipes.
Re: Help Please! Half of Hydronic Zone not heating
There are a few different “pressures” that we talk about in hydronic systems.
The static pressure. Pressure that is measures anywhere in the system with no circulators operating. If the pressure reads 12 psi at the boiler, as you connect a gauge into the system higher up in the building the pressure will read lower.
.433 psi to water one foot
To get water to the top of a 25’ building you need at least .,433 X 25 psi 10.8 psi
The next pressure is the dynamic pressure, pressure added to the system when the circulator spins. This added “head” overcomes the resistance in the piping and fittings.
You could calculate that added pressure, or with gauges in the inlet and outlet side of the circulator you could measure that.
For determine a leak, just measure the static fill after you add water then hours or the next day.
If the boiler is not operating the pressure would not increase. Increasing the temperature of the water increases the pressure a certain amount. Eliminate that by not heating the system as you troubleshoot.
If the pressure drops more than a psi or so, then you determine where it is going to. Pressure that continues to drop usually indicates a leak
Make sure the makeup water valve is off when checking for leaks.
Re: Help Please! Half of Hydronic Zone not heating
There are a few different “pressures” that we talk about in hydronic systems.
The static pressure. Pressure that is measures anywhere in the system with no circulators operating. If the pressure reads 12 psi at the boiler, as you connect a gauge into the system higher up in the building the pressure will read lower.
.433 psi to water one foot
To get water to the top of a 25’ building you need at least .,433 X 25 psi 10.8 psi
The next pressure is the dynamic pressure, pressure added to the system when the circulator spins. This added “head” overcomes the resistance in the piping and fittings.
You could calculate that added pressure, or with gauges in the inlet and outlet side of the circulator you could measure that.
For determine a leak, just measure the static fill after you add water then hours or the next day.
If the boiler is not operating the pressure would not increase. Increasing the temperature of the water increases the pressure a certain amount. Eliminate that by not heating the system as you troubleshoot.
If the pressure drops more than a psi or so, then you determine where it is going to. Pressure that continues to drop usually indicates a leak
The static pressure. Pressure that is measures anywhere in the system with no circulators operating. If the pressure reads 12 psi at the boiler, as you connect a gauge into the system higher up in the building the pressure will read lower.
.433 psi to water one foot
To get water to the top of a 25’ building you need at least .,433 X 25 psi 10.8 psi
The next pressure is the dynamic pressure, pressure added to the system when the circulator spins. This added “head” overcomes the resistance in the piping and fittings.
You could calculate that added pressure, or with gauges in the inlet and outlet side of the circulator you could measure that.
For determine a leak, just measure the static fill after you add water then hours or the next day.
If the boiler is not operating the pressure would not increase. Increasing the temperature of the water increases the pressure a certain amount. Eliminate that by not heating the system as you troubleshoot.
If the pressure drops more than a psi or so, then you determine where it is going to. Pressure that continues to drop usually indicates a leak
hot_rod
1
Re: Help Please! Half of Hydronic Zone not heating
If you get a solid stream while purging I would narrow down to a flow check not holding or a circ not moving flow. You have isolation valves, so remove the 4 bolts holding the pump into the body. Power up the circ does it spin, is the impeller clean, in one piece?
While not quite as easy, the flow checks could also be pulled apart, confirm that they close off tightly.
While not quite as easy, the flow checks could also be pulled apart, confirm that they close off tightly.
hot_rod
1
Re: Buderus Logamatic: house overheating w/ random DHW PROD ERROR
Your boiler loop to your indirect is overhead which can be a great place to trap air. If you're positive that the circulator is running try purging just the indirect loop again.
pedmec
1