New Heat Pump

Trane came and replaced the heat pump friday!  Since they were schedulaed to arrive between 7-8 AM, I had to get up at 6 AM to be dressed, fed and ready for strangers.  Which also meant feeding the cats, herding them into the bedroom the day, and cleaning the litterboxes.  Naturally, they were late (but only by 30 minutes).  Which was OK because I barely finished breakfast.

First, they disassembled the indoor part.

And removed it...

Then removed the outside unit.

I tried not to bother them too much.  I know contractors hate that.  But these guys were pretty friendly and I did have a few questions along the way.  So I showed up quietly every 30 minutes or so mostly just to observe the progress.

And because of a friend's bad experience once, I glanced around to make sure none of my more "interesting" tools or equipment was missing.  Me friend had some serious theft while his house was being renovated (he got it all back because the thief was really stupid).  They did borrow one of my tools, but it was back on the rack before they left.

But I love to watch things being done.  I usually learn something useful...  Knowing what the inside of enclosed equipment looks like has allowed me to fix a few things myself for free.  For example, once the old unit started leaking water on the basement floor, and I had seen a water collection tray that looked kind of flimsy.  But I knew where it was inside.  So I remove that sheet metal panel, found a loose bracket and re-leveled the tray tightly.  👍

So they finally got to the part about installing the new outside unit.  Which seemed to take forever (but without them seeming to be doing anything with it), so I went out to take a look while they were busy inside.  

There was some noise that worried me, but it turned out to be some equipment that was temporarily attached.  I think it was either a power pack to run the equipment diagnostics before they hooked it up to the house current, or while they were hooking it up to the house circuit box OR it was pumping coolant into the system.  I didn't bother them about it; they were still working.

Whatever it was, it got turned off and detached eventually.  Because they only attached the outside electric cables after they detached it, I'm guessing it was a temporary power supply for testing purposes.

So here is the new outside unit.  It's big.  The old one reached my waist; this thing reaches my shoulder.  And it has a cover to prevent rain/snow/sleet.  The previous unit had a separate electric thaw system.  Because of the size, the ventilation slots around the casing reduce heat build-up in Summer.  

Everything about this unit suggests better operation and long life.  I think I am going to be happy for a long time.  

The last thing they did was install a new thermostat.  My previous one was digital, but only like a clock is digital.  That display showed all the choices and had about 4 manual buttons.  Easy to change from heating to cooling, change the temperature target, and control the fan.

The new one looked more like a smartphone app.  I can even control it with a smartphone if I want to (I don't).  And it is programmable (which doesn't work well for my rather unsheduled life).  But when I had the guy show me how it worked, it was actually simple to control manually.  In non-programmable mode, it is just a touch screen instead of manual buttons (whew). 

Touch the screen and it wakes up.  I can touch "heating/cooling" to change that, up/down arrows for changing the target temperature, and "fan" allows 3 choices (on when "unit is on", on all the time, or a 10 minute on/off cycle).  There are other touch choices, but those are for programmable scheduling mode and I have no need for that.

I should explain that.  I've mentioned I keep an irregular schedule.  I just sleep when I'm tired (or bored).  Sometimes I go to bed at 10 PM, sometimes I go to bed at 2 AM, and sometimes I just stay up all night.  No way can I program the thermostat for that.

Back when I had a regular office job, I had a fancy programmable thermostat.  And I should mention that (year-round) I kept the house at 76F daytime and 68F nightime weekdays.  Kept it 72F daytime on weekends.  And that worked (the thermostat allowed you to choose days).

Now that I'm retired, it's 72 and 68 everyday (I sleep better a bit cool).  But as I said, the hours are regular anymore.  So non-scheduled works for me. 

So here are the results after 2 days...

The Trane unit works better than any York or Ruud unit I have ever had!  It cools and heats quickly.  The previous unit took 4 hours to cool the house 4 degrees F.  This one takes 30 minutes either heating or cooling.

It is unbelievably quiet!  The previous unit made some noise even when new that I could hear in the bedroom at night (the outside unit is right under my bedroom window).  It was mostly just fan noise at first, but by the end it sounded like motorcycles driving up and down the street.  

This Trane unit (an XL) is so quiet I didn't even think it was on.  But standing close to it, I could barely hear it when it was operating.  A kitchen temperate probe thermometer set into a floor vent says it sends out 54F air.  That's actually higher than the previous one (which did 44F when new), but it is more powerful (3.0 tons airflow to 1.5).

And it is extremely energy-efficient.  Before I chose to buy an XL Trane, I visited several websites that seemed to be either expert testers (like Consumer Reports) or non-brand-oriented sites created by experienced but independent heat pump repairmen.  

The general consensus was that the XL Trane should pay back the cost in electrical use and lack of repair costs in 10-12 years.  And since they also said the Trane unit should last 15-20 years, that almost suggests I get it and use it for free!  

The concept bothers me slightly.  There ain't no such thing as a free lunch.  But I have to admit that, if a piece of equipment uses only 75% of the electricity and lasts 2x as long, you have to be gaining something somewhere!  So, I am very pleased (even if it is just the ultra-quiet operation).  

But I have a gripe!  The Trane unit uses a different size air filter than the previous unit.  I like to order good-quality filters in bulk.  So I went to pull the new filter out.  I wanted to know the brand and MERV rating (thats the size of various pollutants it can filter).  I can't (without damaging it, I think).  It catches inside somewhere.

So before I have to replace it, I ordered a dozen the same size but MERV 11 rating and duration (3 months) I usually do from Amazon.  When they arrive, I will force the new one out to examine it.  If the new ones are also hard to put in and out, I will call the Trane company and suggest they didn't construct the filter slot well (it was manually shaped on site).  That could get awkward, so I sure hope the new ones fit easily.

But overall, this Trane is by far the best heat pump I've ever had.  But I'll know better about that in 10 years.  With luck, this will be my last heat pump.

Ooh, I have to mention this too.  My electric co-op sends users a $100 -150 check anytime they use less electricity than the same Quarter of the previous year.  And the new Quarter starts June 1st.  If the new Trane is as efficient as they (and neutral websites) claim, I'll get a nice bonus!