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System 2000 sudden issue
We have a System 2000 Frontier ek1 system (oil) in our house that is about 6 years old. This problem just started yesterday (which was also one of the coldest days in the northeast)
All appears normal (at least to me) when looking at the unit, however it seems to be not heating the water sufficiently? Typically we can only turn the hot water in our shower to about 75% because otherwise it is , usually, too hot. We like that. Yesterday (and today) even with the hot water at 100%, it is just warm. Same with the sinks in the house. We have three heat zones… they have heat, but, again, not at full capacity. If I set the thermostat to 70… it will only get to 66 and stay there.
jhickey
Re: System 2000 Energy Manager
@BenW Watching your video, you definitely have something else going on there with the zone outputs. If you email me at jszwed@energykinetics.com we can go over a couple things to try and understand what is happening.
szwedj
Re: System 2000 Energy Manager
The flashing 140-150 light is a feature added to the last generation of our digital managers (the ones with the led temperature bars) vs the newer display managers (that use an lcd display instead). It indicates a circulation issue on the boiler. Assuming you have the most typical installation with a plate heat exchanger mounted in the boilers bypass circuit, the most common cause for the 140/150 error is that the boiler side of the plate het exchanger has become plugged up and needs to be removed and flushed or replaced.
The way it works is when the manager receives a call for heat or hot water, the boiler preheats to a certain temperature before it starts heating the calling zone. It also expects the water to heat up to a minimum temperature within a certain time. If it exceeds that minimum time, it will go into this 140/150 mode and it will cycle the heating zones to allow hot water to flow through the system in the event that the plate heat exchanger is restricted or plugged. If after cycling the zones it senses the water temperature has risen above that minimum, the system will stay in this mode and continue to operate providing heat and hot water.
Cycling the system power on the left side of the junction box should clear the error, but if the condition still exists, it will return.
szwedj
System 2000 Energy Manager
Hey Guys, thanks for your time.
My system just started doing this. No loose connection that I can see. Circulation pump for the hot water tank seams a little louder than usual but it doesnt stay on long enough to find out. Power cycling doesnt fix the issue. It flashes 140-150f back and forth. Any ideas? Any questions my way that might help. Really appreciate it. https://youtube.com/shorts/FC_foO7N2Oc?si=eK7FTmvaNjcj00WB
BenW
Re: iron sediment in flat plate heat exchanger
Take it to a radiator repair shop, they will cook it clean in their tanks.
Is it a brazed or bolted type?
hot_rod
Re: Excited about Boiler Design
@hot_rod yes, I would never recommend electric resistance heat as a primary heat source, at least not here in the Northeast. But that little 1500 watt fake stove warms the tiny kitchen right up for a half hour while I make coffee, and the 25 cents it costs me to run it once in a while doesn't hurt. Also, those things are super portable, easy to move to a cold spot, and easy to store in the basement in summer.
Can't believe I'm praising what is essentially a large hair dryer with a fake flame here, but when you need a little extra portable heat now and then, you can't beat it with a stick.
jesmed1
Re: Longest lasting steam radiator vent
As far as Harbor freight goes I get it. I have bought junk there and I found some decent stuff there.
Depends on what you use it for.
A homeowner may pick up a pipe wrench he will use once or twice a year at Harbor Freight. I wouldn't blame him for not buying a Rigid with the $$$ they get for them. A professional who uses his tools hard every day will spend the $$$ for a Rigid and be better off for it. It will last a lifetime.
Companies get around thing's different ways. "Made in USA" can mean different things. Parts can be made anywhere and assembled in the USA for instance.
6yo NTI TFT 154 Gas/Hot Water Boiler throwing error codes (Chicago area)
Starting this morning I noticed that the heat was down a few degrees and checked on the boiler.
On the Control Snapshot screen it displayed:
Lockout 109: Ignition failure occurred
Alert 448: Flame too low
Alert 293: Abnormal recycle, Flame was lost early in run
Alert 291: Abnormal recycle, Flame was not on at end of ignition period
Alert 449: Modulation rate was limited due to flame strength
I originally thought this was due to a dirty flame sensor so I cleaned it with steel wool and it fired up normally. I also cleaned the condensate drain for good measure. When I returned home this evening the lockout 109 and alerts 291/449 were present.
I cleared the lockout and alerts and it's been working fine for the last 4 hours, but it's clear I need to do some more work.
I'd love to get some input with this situation on likely causes. Hoping it's as simple as a faulty flame rod and I can have it delivered by Tuesday.
(alert 448/449 refers to lockout 138 but that lockout never triggered)
Re: [urgent] Is there a way to limit maximum firing rate for Lochinvar Knight boiler?
you can in fact change the temperature the boiler run on a DHW call. Factory default is 180, I don’t remember the adjustment range.
If you had an indirect with dual coils, or a high output HeatFlo, you could generate DHW and tun low enough to condense.
Same with adding an external plate HX. With a close approach HX design the B side can get within a few degrees of the SWT.
Generate 120 DHW with 125 supply, for example. A plate HX is a much more efficient way to exchange temperature.
It’s the key to the EK efficiency, the plate HX for DHW.
hot_rod