Joined on August 13, 2009
Last Post on December 10, 2013
@ October 30, 2013 8:14 PM in Help with Daikin split unit (basic operation seems inefficient)But I sell quite a few Samsung and Comfort star units.
If the unit is blowing room air before it has satisfied the setting, chances are good you have a low charge. Most units do not have a low pressure switch and will continue to run. The only safety is a hi temp thermistor on the compressor and I have found they will run and run without overtemping even with 0 charge. On HEAT mode the units blower will shut down when satisfied but will first modulate down to the lowest possible point before shutting down. This is the whole concept of modulating inverters- to replace just what is being lost.
Heat pumps have gotten a bad name because they were originally sized to the cooling load. Heating load is usually 2 to 3 times greater depending where you live. Inverter mini splits do not suffer from this disadvantage because they can be sized to the heat load and they will modulate down for proper dehumidification and cooling in the summer. I have a Samsung Vivace on my first floor, it achieves a COP of 2 at 17 degrees. Thats half the price of resistance. The air is always toasty warm, everyone stands in front of it when they come in from a freezing night. It will shut down at 5 degrees outdoor ambient which is hardly ever reached southeast PA.
In cooling mode, the indoor fan will run continuously, this is because the temperature sensing bulb is in the unit, this is why you can put your remote in a drawer after setting the temperature, it flashes the wall unit and in order to receive a accurate reading must keep the air circulating... indoor blower motor uses 33 watts.
Comfort star allows you to use the remote as the thermostat with their follow me feature. This feature works well for units mounted on high walls or cathedral ceilings although in this mode, just like the old Sanyos the remote must stay within eyeshot of the unit. You cannot use gauges on a mini, you must weigh in the charge. I would start there, inproper flares and procedures have left many of these units with leaks.
@ October 7, 2013 2:37 PM in refrigerent traps and subcoolingis there to insure oil returning to the compressor.
I check my subcooling right after the condenser.
@ October 6, 2013 2:55 PM in best all around zone valve? or fuggedhaboudit and use pumps?Although I have had a bit of trouble with the originals, all have been replaced by now. I really like the design and the new ones fit right on the old valve bodies. I only have 2 years on the newest ones and so far so good. This is still a far cry from the 45 year old thrush motorized valves in my fathers home that seem to just keep on ticking.
Most companies over-design and then cheapen it up from there, Taco uses a different business model. After cracking open some of the older failed valves it was no wonder they failed, but that being said the new ones seem much more positive and powerful.
They use extremely low power consumption( without looking it up I think you can run 10 or 12 of these things on one 40 va tranformer) which means standby loss is minimal because most people dont turn off the power to the transformer in summer.
They use an isolated end switch which is needed for boilers like the Prestige that operate on dc current (no 3 wires allowed). Very easy to wire because of the removable molex type connectors used.
One thing to remember when buying Taco zone valves... warranty starts from date code on valve, do not buy any that have been sitting on the shelf!
@ October 1, 2013 9:06 AM in Condensate switch failures (Posting here because you folks use these pumps a lot)Although I have never used that exact model I have two of their floatless cube units under my mini spits, I have had quite a bit of trouble with both of them, one more than the other. Evidently they try to match pump speed with condensate flow, that produces a lot of noise on a continual basis. Interestingly,I just purched a new Aspen mini white pump that is located externally to the mini split, very similar to the Diversitech style but it uses a standard float and is designed to be easily cleaned. After a delay in this pump arriving it was explained to me that Diversitech just purchesed that division of Aspen. Another problem with the floatless units is they use a computer dc supply that draws current all the time, probably more on standby than a normal float style uses all year.
Also not to bash on Diversitech but I had one of their standard condensate pumps(the red one) with the float fail. The closed cell foam they use for the float actually became water logged under a condensing boiler and shut down the boiler. I was given another pump and so far so good.
@ September 20, 2013 7:28 PM in Using two Burnham pv4 boilersto replace existing boiler. I would like to abandon the chimney and use power vent boilers. Unfortunately Burnam does not make a 7 section in PV.
What would be a good control to stage these boilers?
Would staging two boilers like this be a good idea?
Would it save the customer money on fuel?
All ideas and opinions greatly appreciated. Thanks
@ September 6, 2013 1:18 PM in Bridging the gap Hydronics to ACWho ever is selling you Daiken should be setting you up with training. Join the Daiken University for a few hundred bucks and it gives you access to all their courses.
Daiken cost a little more but some of their units have some unique features such as being able to dehumidify without changing room temperature.
The Aussie on youtube ia always ripping them apart, His videos are entertaining and you will learn alot. Here is a link to one of his videos, you can subscribe from there.
@ September 2, 2013 5:54 PM in CSSTis a different story, I have lived in Vera Cruz in a small fully detached home for a year. I also lived in an apartment in Cozumel for a year. I married a Mexican girl who was bilingual and I had taken spanish for 3 years as an adult ( I could speak good enough just to get me in trouble)
Construction in Mexico is almost all cement including the roof. Electrical fires are almost non existent and believe me...its not because they practice good electrical codes.
Very few homes have air conditioning, although ductless is becoming popular. Because the homes have no insulation, a/c is usually kept to one room. Most homes have no windows. Iron bars take their place, you would think this would be dangerous in a fire, and here it would but there.... not much to burn, a few pieces of wicker furniture and maybe a mattress, many still sleep in a hammock. The gas guy comes down the street every day banging on a tank of propane in the back of the truck. You just go outside and wave him down and he switches out your tank. I believe we were burning butane in Vera Cruz because the temperature was hot enough all year around for vaporization( Technical spanish is a whole other ball game so im not sure) The funny part is every Mexican housewife knows how to mix liquid soap with water and test the joints. Not for safety but because they dont want their propane being lost. Anyway if there was a leak, the houses are so well ventilated it would never build up.
@ August 31, 2013 9:18 PM in Electric Heat???heat pumps. She will easily be able to heat the home down to 5 degrees outdoor.
Size the heat pumps for the heating load.
Her heating bill will be 1/2 to 1/3 the cost of resistance heat.
sorry, missed the part where she was renting. she will have to use a window vented heat pump
@ August 31, 2013 3:03 PM in CSSTnot the product.
Im glad to see the manufacturers have taken the proper steps to see their tubing doesn't fall into the wrong hands!
@ August 31, 2013 2:57 PM in CSSTRead the part "CSST safety questioned"
@ August 31, 2013 12:55 PM in CSSTThey admit they have a problem and try to make it right.
First they have to come up with a solution and get that solution UL approved.
Second they do everything in their power to let people who may have this stuff installed in their house become aware of this recall.
Third they pay qualified installers to go to each house and apply the fix at no cost to the customer. They pay the installer.
Ive seen the manufacturers of Plex vent and Ultravent step up to the plate and make it right.
Ive seen firearm manufacturers step up and do the right thing.
Automobile manufacturers do it all the time.
i know a JAG lawyer who tried to sell her house, the inspector wouldnt pass it because there was no bonding on the csst, she reviewed the codes of the period when the house was built and found there was no bonding requirement, The csst company paid to have the piping bonded. Funny how that worked!
Here is a good article...http://www.lpgasmagazine.com/accidents-involving-csst-can-raise-many-issues-in-litigation/
If your an installer and this stuff goes get ready to be dragged to the party. Dont think what you saved on a few hours work will pay your lawyer bill!
I love how the CSST people start pointing fingers at all the other piping products, always a sign of a desperate man. I mean really, using your approach to this the CSST in no more a culprit in this than if this woman's dogs would have been standing in the yard and got hit by lighting, que sera sera. Interestingly in this house 90% of the house was black steel only 6 foot tails were used in csst. The Black pipe is still fine.
Sorry Bob I do my best to install quality products from companies that stand behind their products, not dirtbag corporations who only look at the bottom line. I mean lets get real here, we are not talking about a faulty lav faucet here or a dripping ballcock. Customers lives are at stake here, dont they at least have the decentcy to notify them?
@ August 31, 2013 8:26 AM in CSSThttp://www.prweb.com/releases/2013/6/prweb10810275.htm
@ August 30, 2013 10:47 PM in CSSTthat these EXPERTS ....."THINK" it will work....Really! If I have to bet my business on it and maybe even my customers and their childrens lives on it, dont we at least deserve some kinda third party testing on the bonding "THEORY' Oh wait thats right... this is the OLD CSST way way back from a few years ago. For me to go into a house and inform potential customers that it needs to be grounded is absolutely ridiculous considering there is no real third party testing to confirm this. That is what the case in Montgomery county was all about. I simply tell them it has to be replaced with professionally installed black steel pipe and that will greatly lower their chance of burning their house and family to a crisp. Unfortunately that's the truth!
@ August 30, 2013 10:29 PM in CSSTI believe the house was built 2002 and if you look in the code book at that time bonding still wasnt required.
@ August 28, 2013 6:24 PM in CSSTJust started a new job where the house was burned down from CSST and a lightning strike. House was built using steel pipe except they got lazy when any fitting had to be done, so they used CSST whenever tying into an appliance with 6 foot tails. The tail to the gas fireplace was the culprit, the current jumped to the side of the fireplace and turned the CSST to swiss cheese and smoked 1/2 the house and unfortunately killing the woman's two dogs. The insurance company and the fire investigators removed the suspect CSST but never informed the woman of the impending lawsuits.
Its amazing how well the manufacturers have kept this thing hushed up. After I informed the woman of the open cases and how to do a google search she has now hired a lawyer.
If they would have finished the job in steel pipe or copper, they would probably be just replacing a couple of tvs ans a refrigerator, not half the house.
@ July 28, 2013 4:35 PM in Water conservation and old toiletsthat use them could use your advice because I have never seen one that doesnt smell like old urine.
@ July 28, 2013 11:12 AM in Copper prices affected by Bank manipulation of MarketsThey post news clippings everyday as to whats going on with these subjects.
Dont stay too long, it gets depressing.
@ July 28, 2013 11:07 AM in Water conservation and old toiletsA new local Giant food store decided to go GREEN and install waterless urinals in the store restrooms. Nothing better to cut down on food spending than slipping in the mens room and breathing urine vapor before shopping. A second store was built in a neighboring township a few months later except this township had a plumbing inspector with brains and he shot it down. Personally when I see waterless urinals I use the stall, hmmm big water savings there.
@ July 27, 2013 8:35 AM in ECATJust wondering if anyone here has been following this device.
Could really change the way we install boilers.
@ July 5, 2013 8:41 AM in reviews of new mirco channel coilsAir Temp units last year. They have gone to both condenser and evaporators of aluminum, so far so good.
My main unit is ARCO AIRE (ICP) and they have gone to just an aluminum evaporator. They even have a 20 minute video on the counter at my supplier detailing why they have done this. Of course it is all about performance, not a word about cost BUT they do give a 10 year no hassle warranty . With that kind of warranty they are willing to bet it will hold up. We will see. Putting one in today. Maybe it will be a good thing because I have been hearing all types of problems with copper coils lately. All different makes.
@ July 4, 2013 9:20 PM in What type of dehumidification systemshttp://www.tech-4-you.com/ESC/PDF/Entergy/7_Entergy_Novelaire.pdf
@ July 4, 2013 12:31 PM in What type of dehumidification systemsI dont know. I would imagine the type system that is circulated through the floor and walls, similar to radiant heat.