Side Shot....with BF

Weezbo

Power is going from the aquastat on the Triangle Tube,yet, after the side shot proves ziltch is comming back to the BF riello....any suggestions?

Boiler works ...side shot works ....we are at it with the big question as to how both do not seem to want to work *~/:)

Weezbo

Low side DHW temp

will start burner buh not side shot...or it will turn side shot on..purge then fire boiler on the high side primary heating( upper limit side)..in other words the heating sidde works correctly,the low temp DHW side does not... this is a first for me .. i honestly never encountered this ..any help?
i am near two computers so i ready to roll wwith it..:)

when

John Abbott

side shot

Is this an SS 1 ?

Weezbo

Yes. i should have mentioned ...

a couple months back someone mentioned they were having some difficulty ,had i made some attempt to help them i would likely have found the answer for this minor technicality...

bill nye_3

BF

Excuse me in case I'm ignorant, but isn't a BF a direct vent burner? I thought the BF was balanced flow or something. Why would you hook it up to a chimney or a powerventer?

I gotta go look that up in case I am all wrong

kevin coppinger_4

the BF can be...

used w/ DV boilers if the boiler is approved for DV. Some people will use it just because they want combustion air brought in from outside directly to the burner... especially if it in in a tight house or confined boiler room. kpc


To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

John Abbott

Side shot

If you are not getting a return approved signal on an ss1 check the draft prover and blow out the tube into the power vent with compessed air or blow out gun etc.The draft prover switch is wired in series with the approved return.If I understand you correctly you are saying it won't work on low limit does the boiler have a triple aquastat?Tankless coil?

Weezbo

John, that is a good point. the only minor technicality is...

i already tried that

i thought that i had these down a-z...this one particular instance has me at least considering that something internal may not be functioning correctly within the board. let me go a shade deeper as it were, after checking the proving switch with air we reset the power,..all the lights go through the sequencing and there is no "Fault error" on the board. It is a Triangle Tube Delta boiler, it has an upper and lower limit K1 K 2 relay.

the TT has a designe something similar to a coil in that it ,the inner tank,makes the Domestic water Hot :)where it differs is the inner tank is huge ,similar to an indirect, it is suspended within the Boiler(another tank) this allows the inner tank the advantage of expansion and contraction and that advantage allows it to be what we might consider "self-Cleaning". I sent the wire from 4 on the TT up to the ventor connected my whites and broke the line side of the burner circuit.....

Bill, in a way i agree it also crossed my last remaining brain cell that seldom would i suggest both the BF and the power ventor...however,after appraising my self of the situation at hand, ...i would certainly see the benefit in this instance. for it is as kevin mentioned very tight home CIF all radiant etc ...the stack would approach 45 feet approximately(by eye)...

here is something that i recall that was stated in the other post....there was a board up grade or change...

some BF's have a post purge on them, these i think are much more of a hassel with the timing of the two devises.

as a bit of an aside, ..i have always considered the location of the board less than ideal. Generally one is called to help on the side shots where standing on one ear while contorting oneself into very obscure body positions to over come the obstacles at hand,...seems to be the only way to work on them. were i to suggest a change to this piece of equipment it would be to have the board installed vertically rather than horizontally beneath the motor.buh,...i digress...

bill nye_3

well then

well then the other thing is the thermal switch in the ss power venter. You have to contort yourself and stick a screwdriver or similar object in and reset the clixon type button on the thermal switch.

The last one I had trouble with got too hot because of too much draft and too much firing rate and too high a stack temp.

Riello's really do not like too much draft. That powerventer will suck the flame right off the end of the burner it'll also suck the spark and fuel and cause it not to light. really,

John Abbott

Side shot

If I recall correctly there is a jumper on the circuit board which you install for either 120 or 24 volt operation of the proving circuit and if you are breaking the burner lead the neutral needs to be connected to two terminals on the circuit board terminal strip.If I am understanding you correctly you may be trying to do something the control is not capable of.I use the same unit with Beckets with both pre and post purge so I dont think that is an issue.The wiring diagrams and Trouble shooting instructions are pretty good on the SS1 though I haven't used it with the Riello in this application.

Weezbo

That too is a valid point...

you guessed it..Checked that too.

it really is right what you say. thanks for the thought

i even considered wiring around parts of the board to deepen my search for the anomaly... it is hard to think this buh,..a relay controlled by a circuit monitor to the blower motor through a relay to the burner, should allow the burner to be controlable long enough to test that theory... That would let the burner have power through its pre purge cycle, the burn and were it to have post purge on the BF ..the side shot having the longer cycle would allow the BF to continue to function as it is designed...maybe i should just let this service call "go".

Weezbo

I too think that to be correct it has a jumper,

that goes to the remaining termination from 2 and 3 on the board....

Scott Stafki

I.m in Technical Support with Tjernlund Products. I'm not sure if you are in need of technical assistance, or if you have solved the venting issue. My name is Scott Stafki. I can be contacted direct at 1-800-255-4208 x 142

Thank You,

Scott Stafki