I have a 2800sq ft house in need of a new system. First company came out and said "oof, that return duct is only 10in dia for the 1st floor and 14in dia for the 2nd floor. It will be impossible to give you a Heat Pump that will perform". The 2nd company came and said "no problem, we will throw in a 4.5ton system and you will like the rebates and energy savings". I appreciated that the first company gave an honest assessment of my setup and limitations.
@@ericw357 Yeah the first Company definitely sounds like they did all their homework for you. That 2nd one is just trying make money and doesn’t care for the customer. The duct work on the system in this video was only 10in diameter on a single return for the whole top floor on a 3 ton heat pump. It was killing compressors and motor the day it was installed.
@@HometownHVAC I agree, but it might be a reasonable compromise in certain cases. I added a weighted bypass damper and it took care of all these problems. It increases the heat levels at the registers but as you know, heat from a heat pump is not excessive to begin with. The smaller ductwork may suffice in this case unless it is also used for gas heat or A/C.
Yikes is that an xv20i? Man if people are gonna be selling equipment that is that expensive please install it right! Airflow is key to the life of your system
The lady across the street has the exact same size and style 1955 house I have. very well made house. I saw a bunch of AC trucks at her house so when I saw her I asked whats up. Her old system never worked right so bought a brand new system. Thats not working good either the drip line keeps clogging and the ac is not that great. I'm pretty good electronics guy very handy know alot about ac systems and looked at it. Her 1000 ft house only has one return register. It was missing the return closest to the ac unit in the garage. The builder never installed it. Mine has 2 one close the other far bedroom both 12 inch ducts. Not alot of air coming out of her ducts. The new ac guys never said a word. 2 Mexican installers didn't speak english. Its all about the air flow.
I dont trust those supco meggohmeter. About 2 years ago i bought one and tried it on a bad compressor and it displayed bad on the device witch is what i expected since my meter had found it to be grounded before i hooked up the megger, then i tried it on the second stage compressor since its a trane voyager and it tested bad, i ohmed out the other one with the meter and it checked out good, I even disconnected the grounded one and left the other one connected and it came on. The compressor was not overamping or locked or anything. Definitely recommend the klein tools megger.
If static pressure is too high on this unit, would lowering the blower fan speed help? The temps past the coil may be a little higher (heat) and lower (cooling).
@@jbsimmons54 Yes it could help but with a static that high even on the lowest blower speed your still going to have a slightly high static and the unit will not preform well. You will also pay more in the power bill because it will never shut off due to trying to reach temp.
@@CarreraTrackOntheFloor Yes if there was no way to upsize the ductwork we would have to go with a lower tonnage or we could do away with that system and install Mini splits which are ductless heat pump systems.
I highly recommend a really good in duct thermometer to every home owner. Its very accurate and you can track your AC's performance over the years. Just measure the temp in the duct in the house closest to the ac air handler. Write that down. I own a "Fieldpiece SPK2" tool it works really good $39 Amazon. The other thing that's really important is to tape in all the homes ac filters. Filter metal receptacles are notoriously sloppy. The filter does not fit air tight and it needs to be air tight. The second the filter gets a little dusty all the air will just sneak around the edge of the filter. if your filter is not real dirty after 3 months you have a sloppy holder and the filter is doing nothing. I use stage tape from amazon less messy that duct tape. Just close the gap around the edge of the filter then its air tight and 100% filtered. if you have never taped your filter in air tight odds are really good the air handler coils are clogged. That's not good its poor ac performance and will rust out your unit.
Yep #1 rule is simple as ABC Air flow before charge Yep added a many return air vents on an oversized equipment bc lacking air flow & or also maybe add more supply ducts where possible
Should never just turn a kicked breaker on. You may have just killed that new compressor. Always ohm out your T1 and T2 and check to ground. Before turning on the breaker.
@@robertcherry4971 Homeowner had Breaker off when I got there it tripped when I tried to turn it on. The compressor was already done. Turning a breaker on to a compressor that has tripped could hurt the compressor but in most cases its not going to, thats why a breaker trips in the first place, to prevent damage from over current.
You obviously don't work on a lot of houses with really old electrical, sometimes breakers don't trip when you want them to and fire starts shooting out of things, or you trip the main and then it decides not to reset
@iraregister7589 This home had new electrical. I have worked on plenty of homes with old electrical 😂 if thats a risk the home owner wants to take then thats on them but I do always reassure them that it needs replacing
@@richlikeg3722 It will cause a higher discharge pressure. If it runs like this continuously it will cause the compressor to over heat and damage the windings inside. Not only is it doing damage to the compressor but is also hurting the indoor blower motor and causing the power bill to go up.
I have a 2800sq ft house in need of a new system. First company came out and said "oof, that return duct is only 10in dia for the 1st floor and 14in dia for the 2nd floor. It will be impossible to give you a Heat Pump that will perform". The 2nd company came and said "no problem, we will throw in a 4.5ton system and you will like the rebates and energy savings".
I appreciated that the first company gave an honest assessment of my setup and limitations.
@@ericw357 Yeah the first Company definitely sounds like they did all their homework for you. That 2nd one is just trying make money and doesn’t care for the customer. The duct work on the system in this video was only 10in diameter on a single return for the whole top floor on a 3 ton heat pump. It was killing compressors and motor the day it was installed.
How about adding a bypass damper to relieve static duct pressure?
@@Cotronixco That would just be a band aid fix. Return ductwork needs to be removed and upsized
@@HometownHVAC I agree, but it might be a reasonable compromise in certain cases. I added a weighted bypass damper and it took care of all these problems. It increases the heat levels at the registers but as you know, heat from a heat pump is not excessive to begin with. The smaller ductwork may suffice in this case unless it is also used for gas heat or A/C.
Wow New compressor grounded / that spray is why I switched all my gage sets over to low lose. Fitting & a ball valve both on hose ends
Yikes is that an xv20i? Man if people are gonna be selling equipment that is that expensive please install it right! Airflow is key to the life of your system
@@zaccody6980 Yes sir it was. I 100% agree with you man. You cant install this expensive top of the line equipment and not do all your homework.
The lady across the street has the exact same size and style 1955 house I have. very well made house. I saw a bunch of AC trucks at her house so when I saw her I asked whats up. Her old system never worked right so bought a brand new system. Thats not working good either the drip line keeps clogging and the ac is not that great. I'm pretty good electronics guy very handy know alot about ac systems and looked at it. Her 1000 ft house only has one return register. It was missing the return closest to the ac unit in the garage. The builder never installed it. Mine has 2 one close the other far bedroom both 12 inch ducts. Not alot of air coming out of her ducts. The new ac guys never said a word. 2 Mexican installers didn't speak english. Its all about the air flow.
I dont trust those supco meggohmeter. About 2 years ago i bought one and tried it on a bad compressor and it displayed bad on the device witch is what i expected since my meter had found it to be grounded before i hooked up the megger, then i tried it on the second stage compressor since its a trane voyager and it tested bad, i ohmed out the other one with the meter and it checked out good, I even disconnected the grounded one and left the other one connected and it came on. The compressor was not overamping or locked or anything. Definitely recommend the klein tools megger.
Absolutely cooked 🍳
If static pressure is too high on this unit, would lowering the blower fan speed help? The temps past the coil may be a little higher (heat) and lower (cooling).
@@jbsimmons54 Yes it could help but with a static that high even on the lowest blower speed your still going to have a slightly high static and the unit will not preform well. You will also pay more in the power bill because it will never shut off due to trying to reach temp.
If you can't change the duct work due to access for example, would you install a small tonnage unit?
@@CarreraTrackOntheFloor Yes if there was no way to upsize the ductwork we would have to go with a lower tonnage or we could do away with that system and install Mini splits which are ductless heat pump systems.
I highly recommend a really good in duct thermometer to every home owner. Its very accurate and you can track your AC's performance over the years. Just measure the temp in the duct in the house closest to the ac air handler. Write that down. I own a "Fieldpiece SPK2" tool it works really good $39 Amazon. The other thing that's really important is to tape in all the homes ac filters. Filter metal receptacles are notoriously sloppy. The filter does not fit air tight and it needs to be air tight. The second the filter gets a little dusty all the air will just sneak around the edge of the filter. if your filter is not real dirty after 3 months you have a sloppy holder and the filter is doing nothing. I use stage tape from amazon less messy that duct tape. Just close the gap around the edge of the filter then its air tight and 100% filtered. if you have never taped your filter in air tight odds are really good the air handler coils are clogged. That's not good its poor ac performance and will rust out your unit.
Yep #1 rule is simple as ABC Air flow before charge
Yep added a many return air vents on an oversized equipment bc lacking air flow & or also maybe add more supply ducts where possible
@@jmead6121 Got that right.
I don’t wish you any bad luck but wearing metal jewelry can be hazardous if accidentally grounded.
Should never just turn a kicked breaker on. You may have just killed that new compressor. Always ohm out your T1 and T2 and check to ground. Before turning on the breaker.
@@robertcherry4971 Homeowner had Breaker off when I got there it tripped when I tried to turn it on. The compressor was already done. Turning a breaker on to a compressor that has tripped could hurt the compressor but in most cases its not going to, thats why a breaker trips in the first place, to prevent damage from over current.
@@HometownHVAC Exactly.
You obviously don't work on a lot of houses with really old electrical, sometimes breakers don't trip when you want them to and fire starts shooting out of things, or you trip the main and then it decides not to reset
@iraregister7589 This home had new electrical. I have worked on plenty of homes with old electrical 😂 if thats a risk the home owner wants to take then thats on them but I do always reassure them that it needs replacing
@@iraregister7589 Exactly
What would the refrigerant pressures show if there was high static?
@@richlikeg3722 It will cause a higher discharge pressure. If it runs like this continuously it will cause the compressor to over heat and damage the windings inside.
Not only is it doing damage to the compressor but is also hurting the indoor blower motor and causing the power bill to go up.
dont even need to read static for an under standing as to what is a problem is.
Why would you not check static😂 ? Gotta find out what killed the compressor
Why would Trane replace that compressor again if the problem was not with the compressor but the ductwork?
@@fred-qy4lo They probably wont. I was just there for a second opinion. Im not with the company that installed it. So its their problem now.
@@HometownHVAC Thanks!
being landlord and ac installed i stay from trane/lennox.. parts are a problem..and pricey
Trane only gives 1 compressor under warranty
Return
Heat pump = NO BUENO !