No Heat at All

Jack O\"Lantern

For the first time, about a year ago or mo, I installed three peerless hot water blrs. (MI-04 105,000 btu) in the basement of my newly renovated apartment building, one for each floor. I looped the 1st and the 2nd floor blrs. to 3/4" copper with cast iron baseboard radiation and the ground level flat to 3/4" copper fin tube. For 2 winters the ground level went without a tenant due in fact that it became a storage bin for all my newly purchased tools/ equipment/stock and not once did I fire up the blr. except when I leak tested it right after installation. Now my brother-in-law and his family is in need of a place to stay but I can't get it to heat-up unlike the other two floors of the same size. Since the boilers came pre-packaged with the cirulators mounted on the return side I left them that way and they seem to work fine but not for the basement I had to build a module and replace the taco with a 100 series b&g original yet to no avail. I'm in the mid-coast region and its cold right about now, are there any answers?

scrook_2

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It's not airlocked? Try purging it.

The burner fires and the circulator runs?

Jack O\"Lantern

I power purged and bled just about every high and low spot I could imagine I even added a few more new valves on the inboard and outboard side of the pump and nothing happen.

ScottMP

more info Jimbo

Power purged and plenty of flow ?

Power to circulator ? Your sure its running ?

Boiler is firing and coming up to limit ?

How far does the heat travel in the pipes from the boiler ?

You've jumped out TT on the control to make sure the wire to the thermostate did'nt get cut during construction ?

You've got at least 10 lbs on the boiler gauge ?

If the boiler is hot but not circulating, when you purge does some of the heat get back to the purge valve ? Make sure its not short cycling and just backing thru the boiler.

Scott

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Jack O\"Lantern

The system continues to warm but not heat real slow but not pass the first foot of radiation,the thermostats cycling rate was adjusted several times matching the anticipator to the current on the primary control and the boiler shuts down on high limit. I have plenty off baseboard along the perimeter like the other two floors and I don't think that it's over or undersized since the others work so well.

ScottMP

Jimbo

Check the circulator to see that it did'nt sieze while it sat there.

Also check to make sure oyu have good flow when you purge and again, make sure you are purging thru the zone and not back feeding from the boiler.

Scott

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ed wallace

no heat

what size pipes did you do the near boiler piping with where is the expansion tank located

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Jack O\"Lantern

The taco circulator that originally came mounted on the side, I replaced with a B&G 100 series and mounted it on the supply, it runs like a charm, however, the system still won't heat up... Now the power purge I did with the service valve to the supply side closed and the quick fill open to the riser full force, through the single loop, back to the boiler and out the hose bibb, catching water in buckets below the service valve on the riser. Then I shut the quick fill, bled the systems pressure until the PRV start feeding water, cracked open the automatic air vent on top of the seperator, flipped the service switch and turned on the pump, dailed up thermostat which turned the burners on before the boiler dropped out on high limit again.

Jack O\"Lantern

The expansion tank, air seperator, automatic air vent and ciculator are all on the vertical supply line to the terminals coming up out of the boiler @ 1 1/2" reduced down to 3/4" @ the baseboards and return @ 1 1/4" copper near the boiler.

jeff_25

is that a d.d pump or one with coulper if it has a coulper make sure not loose on shafts that amp draw of motor to see if drawing near rating of motor

Tom M.

pump direction

You say you have the B+G 100 on the supply side (typically pumping upward). If memory serves me correctly, a B+G 100 pumps downward out of the box, you may have to flip the volute so the the arrow is up and the oil cups on the motor and bearing assembly also face upward. I know this sounds simple but when you are looking at a number of possibilities, the simple ones sometimes get overlooked. Hope this helps and please don't ask me why this immediately came to mind.

Tom M.

have you checked the pump direction

You say you have the B+G 100 on the supply side (typically pumping upward). If memory serves me correctly, a B+G 100 pumps downward out of the box, you may have to flip the volute so the the arrow is up and the oil cups on the motor and bearing assembly also face upward. I know this sounds simple but when you are looking at a number of possibilities, the simple ones sometimes get overlooked. Hope this helps and please don't ask me why this immediately came to mind.

Tom M.

Jack O\"Lantern

You're right an oversight on my part I should have known better but It Works! I removed the bolts rotated the pump volute and It Works! Now it's pumping upstream in the right direction ... Thanks!

MikeR_3

Ooh, ooh, ooh...

ask me ! Ask me ! (Why Tom knows this )

Jack O\"Lantern

I really appreciate you all fellas, no air has ever shut me down like that before and for me to go out and get a new ciculator and put it in backwards... it'll be a cold day in hell before I do that again....thank you all...thank you very much

Mark Eatherton1

Been there, done that...

with my partner AND the customer looking over my shoulder...

ME