What goof ball came up with this one?

[BBeerme]

Those sleepers are a bit special. Had to think about that one for awhile. Then I think I realized that it was okay. Might have even been engineered. Hint: The washers under the lags from the 2x's to the 4x's are all loose.

[Poodle Head Mikey]

I guess the pilot doesn't blow out any more? <g>

PHM
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Those sleepers are a bit special. Had to think about that one for awhile. Then I think I realized that it was okay. Might have even been engineered. Hint: The washers under the lags from the 2x's to the 4x's are all loose.

[BBeerme]

Heh heh, even those old BDP's had spark ignition. Or maybe it was a retrofit. Who know's. But the other ~four old units on the roof seemed to get along just fine without that additional 'wind block'.

I guess the pilot doesn't blow out any more? <g>

PHM
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[Poodle Head Mikey]

Do you remember the RTU's with glow coils to light the pilot? They were two-voltage coils: a few volts to keep them warm to avoid thermal shock and the full control voltage to make them glow red.

PHM
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Heh heh, even those old BDP's had spark ignition. Or maybe it was a retrofit. Who know's. But the other ~four old units on the roof seemed to get along just fine without that additional 'wind block'.

[BBeerme]

Were those the Carrier's with the white wire with the purple stripe?

Do you remember the RTU's with glow coils to light the pilot? They were two-voltage coils: a few volts to keep them warm to avoid thermal shock and the full control voltage to make them glow red.

PHM
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[buford]

Does that POS use the g-60 controls? those were good for blowing the doors off those units.

[BBeerme]

This one didn't. But it's so old and probably has had most stuff changed out.

Does that POS use the g-60 controls? those were good for blowing the doors off those units.

[coolwhip]

I remember a leaking RTU at a bar....my boss at the time sent me over to cover the entire unit with sheet metal. Ridiculous!...but I did it.

[Poodle Head Mikey]

Seems like a few makers did it. The ones I remember best (worst <g>) were Patco. I still have at least one of those tiny glow coils, new in the box, sitting on a shelf somewhere. Every once in a while I find it while looking for some other obscure old part. <g>

PHM
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Were those the Carrier's with the white wire with the purple stripe?

[jnsrose]

What's the baffle for? The sleepers are genius. Is the unit floating?

[poppa]

Do you remember the RTU's with glow coils to light the pilot? They were two-voltage coils: a few volts to keep them warm to avoid thermal shock and the full control voltage to make them glow red.

PHM
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didn't carrier cal them thermo pyle ignitor?

[Poodle Head Mikey]

I don't know and I'm not sure that I ever did. I have been trying to picture the box of one that I occasionally come across in the shop archives. <g>

PHM
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didn't carrier cal them thermo pyle ignitor?

[BBeerme]

Don't have a clue what the baffle is for. No baffles on other old and similar units.

The sleepers aren't floating, at least not in the true sense of the word. I have installed sleepers, designed and wet stamped by a mechanical engineer, that were floating. Don't have a clue why he designed that job that way, probably earthquake fears.

On the install in the photo here, I suspect the load is transferred through the 4x4's to beams below the roof line. The 2x4's keep the 4x4's where they are supposed to be, and would not allow for any float. Probably all in an effort to make the roofing easier and less prone to leak.

What's the baffle for? The sleepers are genius. Is the unit floating?