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going to ask the obvious....
1-what t-stat/baysens is on the wall?
2-"hearing relay"? at unit or at t-stat?
3-was running the machine from test function attempted?
4-is there power to the inducer...

Not real clear as to what you are asking BUT the manufacturer will dictate any/all acceptable pressure drops.

ECM motors_the speed of the motor is dictated by settings chosen during installation.
X-13 motor_the speed is dictated by the speed tap chosen
PSC motor_ the speed is dictated by the chosen lead...

Are you referring to medical manufacturing?

p.83 Product data
top right NOTE

Without model #'s of zone controller, indoor & outdoor units; all that can done is speculate that the unit in question is a gas/oil furnace.

You give no indication of how long this system has been operating.
So; you will need to make the phone call to Syracuse and go from there.

that handi box & cover need more caulk smeared on them.
really another foot of UF; would it have broke the bank?

NO!
That furnace looks to be 2 stage with variable speed blower
That AC....plain as can be.

gonad
gonad
family jewels

1- is this a furnace/ac or heat pump?
2-model # of all attached pieces?
3-have they contacted tech support while on the job site?
4-did you state the line set is only 4'?
5-is the correct TXV...

It has 3 speeds; you can only use 1.

my guess would have been luxaire/york

Well, the first thing you will need to do is provide a model # of equipment you are inquiring about.
Then we can go about the task of dispensing guidance.

If you were to look at furnace manual; it will probably lead you down the road you need to go down.
The manual may even have info about the blower cfm.

As too frequently occurs; lack of information provided and expecting a miracle.
What brand equp?
What mod old t-stat?
What mod new t-stat?
Helps to know sequence of operation also!

NOW is the time to bring it to the contractors attention.

::DD:::DD:::DD:.

Longer than that, look in top right corner....
He is a sheltie, super smart and loving boy.

Shetland Sheepdog.
Oversized by AKC standard, but thoroughbred nonetheless.

Unless you had an additional labor warranty; Warranty does not mean FREE.
Manufacturers DO NOT cover refrigerant.
Nothing ship for free.
Replacement of a MAJOR component does not imply remove,...

Your contractor will know what to do.

What he said....

The best thing you can do is throw that nest of excrement in the trash.

1-If it's not broke, don't fix it.
2-Go ahead and budget to replace; then when it BREAKS it will not be a shock to the budget.
3-Get a quote to replace.
4-There is no magic answer.

are you saying the"reply with quote" tab is not there?

Is that an aftermarket motor?

1-didn't comprehend the rules you agreed to when you signed on to this forum.....NO PRICES!
2-not sure what any of them have done except cast doubt on the other.
3-most equipment can be jumped out...

1_someone should have put a level on & in that unit AND read the install instructions.
2_let me guess' they check CO inside the structure and DID NOT bother checking CO in exhaust pipe.
3_BOTH...

Black screen here.

If you can't get a one on one with Mechanical Contractor; have GC find out:
1- Is MC a FAD dealer
2_ Check "100% customer satisfaction", (see if you builders head spins on that one.)
Have been...

See if I'm following.....
You have a home under construction?
Did you inquire about upgrading from 95% to the infinity line or was that just an option given by mechanical contractor so you have...

Not knowing mod of furnaces' assuming gas furn, those "gaskets are generally loose strand fiber.
Don't see why high temp caulk would not solve the issue.
Carrier will even sell you the high temp...

My guess is; there are only 2 wires back there. How hard is that to figure out
DO NOT WASTE TIME OR MONEY ON NEST!

as was stated; op doesn't know if that ID breaker is for indoor unit or outdoor unit___Problem #1
If either breaker is under sized; you are going to have issues.
If either breaker is weak or buss...

Feed them NON self rising cornmeal.
Use self-rising and it will kill the worms.

Your wallet will dictate when to stop adding.

The algorithm of digital thermostats is so narrow that "generally if you see a change in displayed temperature there is either an issue with the system or a door is open".

152 has a record feature (min/max av) only for what/when it is attached to currently
& 7 more scales.
That's what I could tell.

Do you have cookies enabled?

I don't see the first thing indicating what that inducer is doing other than "cutting off".
This is an open forum that step by step instructions lead to other "issues"
Is that inducer 24v? doubt...

Time to learn what a manometer is for.

My money is on; that disconnect will be laying down forever the first time the top has to come off.

Is the installing contractor a carrier authorized dealer?
Most every outdoor section comes precharged for that specific UNIT & 15' of lineset.
Additional charge is based on length of lineset &...

1-have you had it tested??
there are 500+ types of microbial growth.
2-looks like cockroach crap.

Just something to go by.

1-call a qualified service contractor.
2-Keep throwing parts at it.
Your choice.

What troubleshooting steps have been performed?

Do you mean an ECM and not think VFD are you?
ECM is an ECM, VFD not so much.

...and bring back cool cwiz

You've got mail.