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Posted by traderfjp on February 11, 2007, 6:41 pm
Steve: Thanks for taking the time to respond to my post and
headache.
> You've got a parts changer. If the level in the tank is higher than
> the pump, you don't need a Tiger Loop. And you don't need a 2 pipe
> system.
This make sense. Are you saying that running two burners off one line
works with less headaches with a one line system?
> The problem may be the Beckett pump is moving more oil than the pump
> on the old burner did and the vacuum is excessive with the 2 pipe
> system. We switch many 2 pipe systems to single pipe. It often does
> away with high vacuum and air leakage issues.
I ran the old Wayne head along side the Riello for years with no
problems but then I started to get sporadic lockups. My tech convinced
me to change out the head to a new becket. He used the old piping.
All was fine for about a month and then I got another lockup and
lockups were sporadic after that. So my logic would tell me that it's
not the Beckett pump creating too much Vacuum because this was
happening with the Wayne head too.
>
> Do you have a 10 micron filter immediately before the burner?
> Something like a Garber spin on filter? Looks like an automotive oil
> filter. You don't replace just the media, but the whole canister.
I had one before each burner and today I had another plumber replace
the line from the tee, coming out of the tank and wall, back to the
Beckett head and he also put in a new canister filter. I have my
fingers crossed. If this doesn't work then I'm going to ask them to
go to a one line system as you suggested.
>
> What's the priority relay for? So if the water heater aquastat is
> calling the boiler won't run? If he can't figure that out. But if
> you really want one. Use a circ relay. Energize the relay in
> parallel with the burner to the WH. When the WH aquastat calls for
> the burner to come on the circ relay is energized. Jumper TT.
> Connect the NC switch in the circ relay in series with the boiler's
> aquastat B1, between B1 and the burner. When the WH aquastat calls,
> the NC switch in the circ relay opens the circuit to the burner and
> the boiler burner can't fire. This let's the circ(s) run. Or you
> could break the low voltage wires going to the boiler aquastat TT and
> kill both the circs and the burner.
>
I'm not sure if he couldn't figure it out of if the relay was bad.
The heater burner would cycle on and off after he installed the
relay. He gave up after about 2 hours. I couldn't get him back after
that. He just blew me off.
> My guess is if your information is accurate and there aren't other
> problems in the piping, you could eliminate the return line, switch
> both pumps to single pipe setups and this problem would go
> away...assuming it's a high vacuum or possibly a minimal air leak.
This sounds like the next step if the current fix doesn't work. He
showed me his flares which looked better than what was there and he
said that everything was good and tight. Are there any dissadvantages
with a one line system? Would this keep one burner from starving the
other?
> They should have offered you an indirect water heater connected to
> your boiler. One piece of equipment to maintain then instead of two.
I was offered this by the last tech he wanted 600.00. When I moved
into my house 14 years ago the tech convinced me to put in the Bock
heater because the boiler wasn't up to heating a large drafty house
and also making domestic hot water. I guess with an inderect tank it
might work.
Thanks in advance.
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