Best Of
Re: comms between LWCO and water feed?
If all the high tech electrical / electronic gadgets are OK the VXT valve or manual bypass valve may be leaking.
109A_5
Re: KBR 42 3 Bosch Greenstar
@GGross do you think poor water quality could cause a leak in two years time? I’m not exactly sure how to test for a leak in the heat exchanger without taking it completely out…
I will say that the boiler has been firing up consistently for over a week now- we haven’t had it shut down. I can’t figure out what it was.
I have an ejector put in the lower level that the drains feed into. At one time there was an issue with the float and the drains overflowed with the ejector pit full. This would have prevented condensate from draining. My suspicion is that I started having issues around this time… the Condenstate trap was full of sludge when I cleaned it. Perhaps it just took awhile for everything to get cleaned out and running normally again, with a few instances of that error code even after it was cleaned. It appears to be back to normal now.
I appreciate everyone’s responses and help.
Re: comms between LWCO and water feed?
I believe when 120 VAC is applied to the 'Feed ' terminal that activates the feeder. Yes why Hydrolevel used that nomenclature is beyond me, I would have been happy if P1, P2 and A was NO, NC, and Common since I believe it is a relay inside. If you disconnect the wire between the A and the Feed what voltage was on the Feed terminal before and after in reference the the Neutral ? What state is the LWCO in ?
Parts cannon mentality, just change both units, it will probably fix the problem and it makes them more money.
There are manuals for both of those units.
https://hydrolevel.com/wp-content/uploads/2022/03/CG450-CGT450-Instructions-012422.pdf
https://fwwebbimage.fwwebb.com/ProductInfo/VXT-120-Instructions-web.pdf
109A_5
Re: comms between LWCO and water feed?
HVAC manufacturers don't provide information like that, as every installation is slightly different. If one manufacturer made the whole thing, yeah — then they probably would. But in this case, the Cyclegard manual for your LWCO gives the connections at the LWCO (two possibilities) while the VXT-120 manual gives the connections to the Cyclegard. Nice of them.
Re: comms between LWCO and water feed?
Hydrolevel's documentation is kind of awful. Most aren't like that.
mattmia2
Re: Loop PEX *under* joist instead of through? Reasons it won’t work?
Thank you @hot_rod and @Alan (California Radiant) Forbes !😎👍
I completed some of project with the „under-joist“ method…
Really like it because:
- Don’t need to prepare by pre-looping (?) the needed length into each joist cavity. Can simply lay the tube coming directly off the roll.
2. My joists are 5 inches wide of solid pine so a lot to drill through.
The photo shows an example.
Unfortunately the yellowish vapor barrier obscures the tubing routing. But from left to right:
Feed line comes under the left joist
Tube placed into track 2, water flow towards the viewer
Tube placed into track 4, water flow away from viewer
Tube placed into track 1, water flow towards viewer
Tube place into track 3, water flow away from viewer
And so on…
The „non sequential“ order of placing tube was to broaden the loops in the tube to make installation easier, eliminate kinking in loops, makes exit and entrance of joist cavity more gradual.
Used Rehau RauTherm Neo X5 16mm (1/2“) for tubing and Uponor Joist Trak for heat transfer.
Project is in Switzerland
Brian_W
Re: Steam boilers that are piped wrong
Paul, can you explain what you said like I was a 5 year old…..
Snowmelt
Re: Delay of boiler firing?
OK. You have a T9 thermostat that has at least 2 stages of heat. Right now that T9 is operating the Vesta boiler. Where is that T9 Red R wire connected to, and where is the T9 White W wire connected to, and where is the T9 C wire connected to? I can not see anyplace on the Vesta Boiler to connect a T9 thermostat to.
Vesta wiring diagram: Shows no place to add a room thermostat.
Re: Why Is It So Hard To Hire A Contractor?
What I have found is that population density has a very strong effect here: In more sparsely populated areas, consumers are simply happy to have a normal sounding person that returns a call and is willing to come out in a reasonable time frame (Very hard to find).
So, a fairly professional person or company in the sticks, does not suffer the tire kicking and price shopping that even highly competent and legitimate individuals and contractors in large cities and M.S.A.s are subject to.
In these densely populated areas, on the outskirts of medium and large cities, the consumer has a whole sub-strata of fairly competent to highly competent staff who work for large and medium sized Contractors, Govt, universities, hospitals et al who Moonlight - with no professional license or insurance - but can get the job done to varying degrees of success. Their numbers are Legion.
Legit, professional, licensed and insured contractors fight a daily battle... struggling to compete with "competition" who can undercut them on every front and at every angle. The key is that the public, who are keenly aware of whose who, will take that gamble if they can spend alot less.
Even if one becomes very adept at filtering through the daily volume of phone calls, texts and email inquiries about possible work, it's still a huge time eater and can be quite frustrating and demoralizing. Some very excellent and legit professionals grow weary of the fight and can wind up souring on all inquiries.
Mad Dog
