Joined on October 12, 2004
Last Post on October 29, 2013
@ October 29, 2013 11:57 AM in Help needed with heaterhttp://www.doctorcool.com/
There's a "find a contractor" option on the menu line. I think you missed it and clicked on the ad that appears at the very top.
@ October 17, 2013 5:39 PM in I'm finishing up the seminar part of our business.I was looking forward to hear you last weekend in Indy so hopefully will still have a chance before you retire. You are one of the tops in the trade. On another internet forum, the question was asked who we most admire in the industry - you got my vote. Keep writing so I can still get my monthly Dan fix!
@ October 17, 2013 2:56 PM in What's the thingamabobbie?Not a good picture but any ideas what the contraption is on the supply of this old installation?
@ October 17, 2013 12:37 PM in high carbon monoxide levelThat monster is more likely to kill than today's units. Those have air shutters to properly adjust primary air. Shut them you pour out the CO. No flue safety. Blocked flue or downdrafts, fumes pour into the house. 40 year old furnaces likely split open. Any rollout, nothing stops the fire til wires burn to the gas valve.
Today's 90s with induced combustion and no air shutters to play with burn cleanly. Properly installed they don't rely on apartment air for combustion. If there is an issue with the flue, a safety shuts down the furnace. If the flames roll out at all, another safety shuts them down.
There's lives at stake. Reread Bob's excellent post.
@ October 17, 2013 12:32 PM in New YorkerWhat's the view of these things as a basic hot water boiler for a baseboard job? Our Burnham supplier sells them for OOODLES less than a Series 2 for example. Since most HOs are price sensitive, any reason not to go with them? Seem as well built with good controls.
@ October 1, 2013 3:58 PM in Condensate switch failures (Posting here because you folks use these pumps a lot)We seemed to have a lot of problems with the standard Diversitech and the Clearvue pumps. Went back to the Little Giant NextGen which R E Michel has at a great price. No more issues.
@ October 1, 2013 12:14 PM in Pneumatic controlsMay be these guys: http://www.arzelzoning.com/arzelzoning/
@ September 17, 2013 4:03 PM in Micro channel coilWill it fit? Give it a try and let us know - relieve some stress!
@ September 17, 2013 3:57 PM in How to wire duct fan to Carrier 58MVC100-20 furnace?We did this for an old guy on a Rheem, dang booster damaged to board. From now on, RELAY!
@ September 10, 2013 10:20 AM in pleated 5 inch filtersUsually the 5" are much less restrictive than the 1" pleated filters. To me, the 1" pleated are the worst thing invented for HVAC.
Take our office. With the VS blower set to 1600 CFM, I measured static drop over a dirty Aprilaire 213 media. I read .29" drop. The clean media was .23" drop. Clean Honeywell and Trion medias were in the .25 to .30 range. Generic version made by Indigo was more restrictive.
Then I put a 20x25x1. Clean, the drop was .5". Ouch, consider that the TESP for a residential system should be .5" with ducts, coil and filter.
So a good 5" media cleaner with OEM media will be a good way to go. We encourage them on every replacement job.
@ August 29, 2013 4:02 PM in 410 help needed!1.5 ton ton 13 SEER chart with matching N coil...
At 80 out, heat would run from 270 to 324, low side 105 to 165. Without knowing the load, no way to guess where in that range it would be. Usually with the house comfy, probably closer to 290 head, 140 suction. Like JStar said, 20 superheat really common out of a Rheem TXV setup, the RANL-018 calls for 11 subcool. By comparison, the cheapo cube calls for 7 subcool so look at the chart that came with the outdoor unit.
@ August 29, 2013 3:54 PM in introducing my downstairs boiler & systemSure neat to see but glad we don't work on any of those antiques around here! How old is that puppy? The gas bills from a new one should be dramatically lower!
@ August 21, 2013 3:35 PM in I was warnedWe have a couple units in our service area using it, we didn't put it in though one was a unit I sold. Marginally sized and cooled fine. ICOR's office is cooled with a hodge podge of residential splits, all with their gas in them.
Trane says if you just have to use an alternative, use 438a and add POE oil for oil return purposes. I wonder how many guys using the alternatives do that. Could run into problems if they don't.
With the price of 22 these days, might as well use the genuine article.
@ August 13, 2013 11:50 AM in My granddaughter, BridgetPretty handy that she can hang from the ceiling like that
@ August 9, 2013 11:52 AM in York side discharge unitYou can tell but on the swept wing blade, a tad harder since they aren't real deeply pitched.
@ August 2, 2013 12:09 PM in smart phone appsHas several for refrigeration and product info like crossing Copeland compressors.
@ August 2, 2013 12:08 PM in York side discharge unitYou would think they'd blow out the front. I've never seen 1 in person and nothing online in the specs shows which way it blows. They say only 6" clearance needed to the building.
@ July 16, 2013 12:01 PM in Can we gain worthwhile efficiency with new steam boiler?Remember that modern boilers talk ANNUAL efficiency so they are saying that over the course of cycling all winter, they are delivering 80% or more of the heat into the home.
If a tech reads combustion efficiency or a boiler says its output is 80% of input, that doesn't always mean the same as the annual number or AFUE.
The old boiler may not burn efficiently, heat pours up the flue 24/7 while the modern boiler has a damper. The sections on a modern boiler are designed for maximum heat transfer. The higher AFUEs come from wet base boilers like Jstar mentioned so the water surrounds the fire not just above it. The inside of the sections could be limed up providing insulation from the heat wasting fuel.
If you could know the annual efficiency of a 50 year old boiler (you really don't want to) you could find it 50-60%.
@ July 5, 2013 12:58 PM in reviews of new mirco channel coilsThey are the only split mfr using MC evaps. Airtemp is a Nordyne product. I'm still leery. You can use a piston on the 13 SEER level, need to add a TXV to go above that. There apparently have been drainage issues with the lack of distributors since the one side of the coil runs colder than the other. We haven't had any yet. They have a baffle kit or the like to address it. I think the cold liquid could have been introduced on both sides, not just one.
They are no less bucks than the C6 they replaced. So far we've had one leak after 6 months. Our detector found the leak, so far haven't gotten credit from Nordyne as they are testing to confirm our diagnosis.
Another issue with these coils is lack of space for refrigerant in heat mode of a heat pump. That leads to some very high head pressures if you try to heat in mild weather. So now we add a fan cycle kit to cycle the fan if the customer turns to heat in 50s or 60s weather. It goes on a tee attached to the gas service valve. Another potential source of a leak and one more thing to go wrong.
As for cleaning, should someone use them as their filter, probably will have to be removed and hosed down. Shouldn't be hard to clean but brushing it in place likely won't do any good.
I think the all aluminum plate fin coil makes more sense.
@ July 1, 2013 11:31 AM in what is all this extra stuff?I grew up in a house with a similar boiler. Except it was hot water on a converted gravity system.
@ June 18, 2013 12:03 PM in Heat Pump Water Heater and HumiditySo the solid fuel stays downstairs, huh?
@ June 14, 2013 12:20 PM in Heat Pump Water Heater and HumidityThat's going to be an interesting smelling bedroom at times