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Need help with triangle tube prestige 110
cmurra6745
Member Posts: 37
in Gas Heating
Hello I’ve had an issue with my domestic temperature dropping and running out of water when showering . My shower head is 1.8 gpm My t and p valve was leaking I’ve had it replaced as well as thermostat and 3 way mixing valve , expansion tank. Finally they figured out it was expansion tank even though triangle tube said it wasn’t . every time I use DHW it runs out of hot water and domestic temperature drops to 68 degrees after about 8 min while it’s reheatingThe dhw kicks on and starts reheating the new water but doesn’t recirculate the heated water to the shower . I’d say I get about 7-8 min of hot water This is when I even have one shower running . .I run out of hot water quickly and since it’s on demand I thought it shouldn’t be . I’ve had all the work done by the plumber but still having these issues of running out of hot water HELP!!
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Comments
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Do you have a prestige excellence combi? Did it ever work correctly?
If you watch the boiler 3 way valve and feel the pipes, is all the heat going to the little indirect during a call for DHW?
You may have an incorrect control setting. It is too easy to accidentally change a critical setting on triangle tubes."If you can't explain it simply, you don't understand it well enough"
Albert Einstein4 -
In MHO those systems need a thorough cleaning and flush with Fernox or some other good product. You also need a dirt mag or you will have 3 way valve problems.0
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Zman said:Do you have a prestige excellence combi? Did it ever work correctly? If you watch the boiler 3 way valve and feel the pipes, is all the heat going to the little indirect during a call for DHW? You may have an incorrect control setting. It is too easy to accidentally change a critical setting on triangle tubes.0
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unclejohn said:In MHO those systems need a thorough cleaning and flush with Fernox or some other good product. You also need a dirt mag or you will have 3 way valve problems.
3 way internals we’re replaced ( the cartridge ) and system was flushed and cleaned .not sure if with fernox or not though!0 -
Which control? red LED lights or the LCD display ?0
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kcopp said:Which control? red LED lights or the LCD display ?0
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https://triangletube.com/documentation/boilers/prestige-ps-documents
This is the older version. (mcba control)
Did he replace the float / Hy-vent on top of the boiler?
If there is air in the top of the tank the boiler cant transfer heat well...
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kcopp said:https://triangletube.com/documentation/boilers/prestige-ps-documents This is the older version. (mcba control) Did he replace the float / Hy-vent on top of the boiler? If there is air in the top of the tank the boiler cant transfer heat well...Nope mine has a screen and four way directional buttons .. and no he did not but when he replaced 3 way valve he bled system completely so there shouldn’t be air trapped ..
here is the type I have
https://www.supplyhouse.com/Triangle-Tube-PTE110-86000-BTU-Output-Prestige-Excellence-Condensed-Boiler-w-Built-In-Indirect-Water-Heater-TriMax-Control-NG
control type not exact boiler0 -
That controller is pretty intuitive. When you have a call for hot water, does it immediately show the call and ramp up to 100%. What are the boiler supply and return temps during the call? Does the heat stop working until the hot water demand goes away?"If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
Zman said:That controller is pretty intuitive. When you have a call for hot water, does it immediately show the call and ramp up to 100%. What are the boiler supply and return temps during the call? Does the heat stop working until the hot water demand goes away?0
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I wonder if the flow rates are higher than you are assuming. Have you tried clocking your water meter with just the shower running?"If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
Zman said:I wonder if the flow rates are higher than you are assuming. Have you tried clocking your water meter with just the shower running?0
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Zman said:I wonder if the flow rates are higher than you are assuming. Have you tried clocking your water meter with just the shower running?0
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If it is quickly firing to 100% and staying there and all the heat is going to the heat exchanger, you have a puzzle on your hands.
I would start looking for hot/cold cross connects and potential gas pressure/ combustion issues.
Do you have a record of the actual work performed?
Have you watched the whole cycle to be sure the boiler is running 100% the whole time with no modulation? Feel the pipes while this is going on. If there is hot water going out of the boiler but it is not reaching the shower, that would point to a cross-connect or domestic mixing issue. Just touching the pipes is a troubleshooting method often overlooked."If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
Zman said:If it is quickly firing to 100% and staying there and all the heat is going to the heat exchanger, you have a puzzle on your hands. I would start looking for hot/cold cross connects and potential gas pressure/ combustion issues. Do you have a record of the actual work performed? Have you watched the whole cycle to be sure the boiler is running 100% the whole time with no modulation? Feel the pipes while this is going on. If there is hot water going out of the boiler but it is not reaching the shower, that would point to a cross-connect or domestic mixing issue. Just touching the pipes is a troubleshooting method often overlooked.0
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There is no hot water leaving the boiler domestic side when the call for it is on . It just drains the tank and water gets colder and colder until I have to turn off shower then it finally starts to reheat even though it was firing the whole time
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What indirect tank are you using or is this a combustion unit ? If a indirect has anyone checked the drip tube on the cold water feed if this is broken it will by pass cold water to the hot outlet instead of feeding to the bottom of the tank and mixing w portable hot water in the tank already . My though is if the boilers supply and return are hot then one of two things is happening your tank is dirty because your not transferring any heat to the tank being it most likely just below your domestics water set point and not much transfer happening , if the drip tube is broken u will not get much capacity and when the boilers fires for the tank it will reach its limit quickly and seemly nottransfwr much heat . I would have some look into replacing the drip tube for starters ,if it’s traingle tube and then it’s a good possibility Peace and good luck clammy ps if it’s got a plate exchanger it either that or the 3 way which u stated was changed.
R.A. Calmbacher L.L.C. HVAC
NJ Master HVAC Lic.
Mahwah, NJ
Specializing in steam and hydronic heating1 -
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Shane_2 said:Sounds like a problem with the three-way valve. OP said cartridge was replaced. Was just the top replaced? Maybe the entire body for the three-way valve?0
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I did reset to stock and no difference0
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clammy said:What indirect tank are you using or is this a combustion unit ? If a indirect has anyone checked the drip tube on the cold water feed if this is broken it will by pass cold water to the hot outlet instead of feeding to the bottom of the tank and mixing w portable hot water in the tank already . My though is if the boilers supply and return are hot then one of two things is happening your tank is dirty because your not transferring any heat to the tank being it most likely just below your domestics water set point and not much transfer happening , if the drip tube is broken u will not get much capacity and when the boilers fires for the tank it will reach its limit quickly and seemly nottransfwr much heat . I would have some look into replacing the drip tube for starters ,if it’s traingle tube and then it’s a good possibility Peace and good luck clammy ps if it’s got a plate exchanger it either that or the 3 way which u stated was changed.0
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@clammy I sent you a pm0
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Your prestige excellence has a little indirect heater located inside the cabinet. There is a 3 way valve that turns to switch the unit from heating to domestic water production.
You either have a faulty valve actuator or the unit is incorrectly programmed. Someone handy with an electric multimeter could determine which.
Triangle tube uses the same controller for many models and it is super easy to accidentally change a setting. It is likely that you have a bad setting in the controller, resetting to default may not put it at the correct setting for that model."If you can't explain it simply, you don't understand it well enough"
Albert Einstein1 -
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So what was the result here ?0
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