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https://www.danfoss.com/en-us/service-and-support/refrigerant-center/r404a/

Replacement of R404A: your main questions answered

R404A will soon be banned in new refrigeration...

Well let’s see…

How old is the unit , tonnage vs Sq Ft (load calculation) and demographic location?

It’s better for humidity control in 1st stage running longer..

What is their complaint ?...

It’s part of the pm to drain/check the automatic condensate air bleeders on my end, very few know to check the intake air filter or change the oil..

The last few leaks I found was on the separate...

I started electrical long ago but moved into other trades..I did hydronic/oil /gas boilers well before HVAC

The most critical was the sequence of operation (many many manufacturers) that eludes...

As you mentioned

But there is also a register directly above the thermostat in the ceiling that is basically blowing right on it.

Ez peezy! You should be able to close the inside damper to...

I’m having difficulty thinking this is an actual tech just because this is your most basic 101 for electrical..

If power is actually off it’s off! Period! No amps at all..aka “if you turn it on it...

I’m wondering when this newer Mitsubishi Ecodan R32 Monobloc Air Source Heat Pump will become available

The unit is packaged outside and it’s a glycol chilled and heated system

Several other...

Aquatherm by FirstCo AH , hot water heat coil, fed from the hot water tank with its own coil..there’s a 2.5 ton a/c box coil on it
...

You might as well just remove indoor plumbing and just use a water hose, lol

Then replace lighting with candles..

I’m late to this show/subject and skimmed through it..

Was there any mention of connecting/using the existing hydronics into a hot water coil as supplementary / primary heat?

I have been at...

It’s really going to depend on your future boss and their preferred methods..

You need to know more about the building/home design/ demographics and load calculations/ ductwork sizing then proper...

I don’t see any amp draws..my concern is seeing that your readings has less than a 100psi difference when pressures drop and that could be bad /sticking valves in the compressor..

You would see...

No problem ! the sequence of operation and visual observation of what was listed could not really be anything else that I saw…I’m glad you found and confirmed the problem! Your Welcome!

One of the best ones I had was they replaced the gas valve, short nipple and redid the gas trap..during early fall…it’s now November and I found very low entering nat gas pressure

I took it back...

Check the regulator before the gas valve..they will freeze up especially in colder weather due to the WC..the colder weather always reveals it when you have low incoming pressure to the gas valve
...

Gas pressure is low,you need to troubleshoot it

Not enough gas supply pressure…it’s not mentioned if it’s propane or nat gas..

What is your unit? Gas or propane? What is your gas supply pressure to the gas valve?

Sometimes you just have to tell them your findings and let them make an “educated” comfort decision…

Not everything is designed to last forever..

It sucks but I tell all clients the hardline...

Not trying to be an azz but I don’t think that carrier guy knows what he is talking about…

S.O.O is easy to figure out..

It’s a simple Inducer, inducer proof (24v or sensor) to spark,24v...

Yeppers! If I only had a time machine to change a few things/decisions…however I’m happier now with my current RN Girlfriend..We are both making up for lost time.

I had one of those hobbies long ago, it was defective early on , no replacement parts available so I had to get rid of it..next owner did the same (eventually)

Maybe, just maybe I’ll get an...

Hey now! Just tell them….Someone always needs to clean the floors/bathrooms and change the liners of the trash cans, lol..The job doesn’t pay that well but most people like that , enjoy the struggle...

I enjoyed telling the non field experienced “degree” management that I can easily do their jobs but they cannot do mine. They should not be allowed those positions unless they have a minimum of 15...

I will add that I’m now able to advance and work on massive sized equipment large commercial/ industrial that has their own “personality” . I see more control related issues as well. I’m able to...

On my end I did leave my last employer due to the monotony on many levels…

Always going behind others to fix their mistakes

Management didn’t accept they made major mistakes with not...

Being consistent is key…if they choose to modify their lifestyle, it’s on them.

No different than programming a thermostat..you get everything set just right for the majority and someone decided...

VFDs don’t like that particular method..nor do they like misaligned pulleys…

I’m still amazed to this day how no one really checks it (especially after a new motor replacement and the belts are...

I’m guessing I should be fortunate because I had boilers/hydronics and pneumatic experience before ever getting into the air conditioning/refrigeration phase…

I’m more ocd on learning at least the...

After seeing others and they are around the same price, you might a well take a chance on getting the right voltage motor

Only if it’s the correct voltage and the bearings aren’t shot/loud in operation..

Scrapping? You are on your own, lol

You never scrap it out till it’s replaced because the info is on the old parts..

But now you learned something important and what not to do

You replace the motor and hamster cage wheel instead..(cut off wheel on a grinder, on the old cage as it’s easier) as those parts are available and generally in stock

You sometimes have to speak...