Routine maintenance on HVAC save you $12,000

[capwizard]

Green green grass of home. (pic 1,2) Pictures took yesterday, I wear T-shirt and short on this sunshine sunday afternoon, as a weekend handyman.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Opened the exhaust fan from furnace and condenser of the cooler HAVC which on top of the furnace.

PS: This Goodman system, Id changed 10uf capacitor for blower fan, control PCB, flame roll out switch and sprayed rust prevention.

PS: I found out the water leak is from fireplace chimney thought the furnace's exhaust fan, not from AS- I- Thought-condenser of the cooler ! (pic15)

PS: the Cooler Coating spray (Homedepot) is a nasty stuff like TAR.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

i am showing off to the neighbors, now they all want me be their Handyman!!!......

She said " Id changed the system to YORK two years ago for $12,000 they installed in just one day, and the most of neighbors did.", and how well her kids doing in the school gonna be a MD Doctor.........bohr....bohr ....bohr........"

PS: OK, I will keep my ANTIQUE Goodman runs as long as I can!!!!

PS: That's why HVAC makes money and TV repair business is SUCKs

[goontron]

Re: Routine maintenance on HVAC save you $12,000

"is SUCKs"

You have an extra "is" in there...

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Thank you for pay attention to it, It is SUCKs , grammar is wrong but (is) is my version of emphasize, use as a (be).......

I think TV repair business is SUCKs better than TV repair business SUCKs, it mearns TV repair business is going to be SUCK, or
TV repair business is....SUCKs.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

$12,000 one day, I wanna go into HVAC business. .........Ha......Ha............ "you did not have HVAC license"...........OK, Who told you, The Boss needs the license..I am a investor and hire 3 peoples have HVAC licenses then I can sale and service the HVAC unit. Kinda like I open a hospital and hire MDs work for me...................

PS: Service HVAC is much easier than repair TV. PLs don't bug me........ My Personal Opinion.

PS: Crane one time charge $250, customer metal ductwork $250, two HVAC tech.s daily salary about &240 each.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

i'm an amateur.........This is my preconceived opinions , Hope, someone might give me better ideas. let us save money together.

How to clean the copper fittings and connectors: brush with WD40 then heavy grease. (prevent freon leakage)

PS: Why I said "brush with WD40" ......I [canopener] the non-air-WD40 can, correct the oil, put in the cosmetic spray bottle, reuse it.

How to clean the fins of the condenser: First DustOff + spray vinegar + brush with baking soda powder + water off the bubbles.

How do I know if my current air conditioner uses what kind of refrigerant? Most air conditioners have a nameplate on the unit that identifies the type of refrigerant it contains.

How to charge an Air Conditioning unit low on freon:

Step by Step instructions on how to properly Check Refrigerant Charge!
https://www.youtube.com/watch?v=SUyN94Y39Ro

Is my Air Conditioning unit low on freon?
https://www.youtube.com/watch?v=c4i6_Xi5si4

How to Charge an Air Conditioner That is Low On Freon ~ AC 101
https://www.youtube.com/watch?v=0bi1bcyPSyY


HVAC Maintenance Checklist (by Trane)
https://www.trane.com/residential/en...ance-tips.html
Regular HVAC preventative maintenance is the best way to ensure trouble-free operation and peak performance.

pic3 Printable checklist
http://www.hvacsticker.com/images/pr...ecklist-lg.jpg

pic4 Printable checklist
http://www.sawyoo.com/postpic/2013/1...pdf_617493.png

[keeney123]

Re: Routine maintenance on HVAC save you $12,000

I believe the temperatures in your picture are wrong. After the expansion valve it needs to be above 32 F so condensation does not freeze on evaporator. I also believe after compressor it will be much higher than 150 F.

[keeney123]

Re: Routine maintenance on HVAC save you $12,000

If you want to go into this you could take a 9 month course and get a certificate. Then you could work 1 to 2 years in the field. Finally you could start your own business. That way you would be well versed in the field. The reason these guys get paid a lot of money is because it is a physical/mental job like a mechanic. You could get paid well as a lineman for the power company. If you went into medical electronics you would be paid well.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

I only know air conditioning changes gas to liquid, liquid to gas. That is all my knowledge.

i have two friends both have HVAC certifications, they are all doing something else because of the harsh weather and toughness of the jobs.

PS: i'm an investor post #6

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Beware of HVAC Scams!! My neighbors should watch this before they spended $12,000.

I cleaned two outdoor Condenser and Compressor units, Kinda like this one. Look at this one! What does yours look like?

I will check the Capacitors next time.

[sam_sam_sam]

Re: Routine maintenance on HVAC save you $12,000

I believe the temperatures in your picture are wrong. After the expansion valve it needs to be above 32 F so condensation does not freeze on evaporator. I also believe after compressor it will be much higher than 150 F.

Your right the evaporator coil temp would need to be more than 32*F other wise it would freeze

40 to 50 *F Evaporator coil temp but ---> one way to really check this is take a reading on ether side of the evaporator coil you need at least 15* F difference between the two reading

The condenser coil would any where from 120* to 180* air discharge temp depending on how old the unit is but---> one way to check this is the liquid line temp should only some what warm to the touch not hot

[srhofmann]

Re: Routine maintenance on HVAC save you $12,000

Your right the evaporator coil temp would need to be more than 32*F other wise it would freeze

40 to 50 *F Evaporator coil temp but ---> one way to really check this is take a reading on ether side of the evaporator coil you need at least 15* F difference between the two reading

The condenser coil would any where from 120* to 180* air discharge temp depending on how old the unit is but---> one way to check this is the liquid line temp should only some what warm to the touch not hot

The evaporator coil temp does need to be above freezing but the actual liquid temp will be below freezing before the evap. Reduced airflow across the coils will cause frost/ice to form because not enough heat is removed from the air to keep the coils above 32. A clogged air filter and incorrect blower speed, too low, are 2 simple things to look for. Another cause is an under charge of the system, the reduced pressure in the lines will allow the phase change from liquid to gas to occur at a lower temperature.

A 15 degree temp drop is a little low in my experience. Once the environment has stabilized it should probably be closer to 18-20. The best thing is to refer to the manufacturers charts to see what it really should be. High indoor humidity along with high outside air temp will reduce the temp drop.

[sam_sam_sam]

Re: Routine maintenance on HVAC save you $12,000

What you have there is very true
I was basing this on older units that did not have high efficiency and that was the hard fast rule back then

Now if one of newer units that has a VFD fan motor then yes the temp difference will be 18* to 20* F
It could even be a little more more than that if has a temp sensor on the evaporator coil

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Test Run Capacitors and change compressor electric connectors.

A unit 5/40uf tested are 4.31/38.5 uf

B unit 5/40uf tested are 4.2/36.2 uf

It seems to be OK , I Ordered two of Run Capacitors gonna change them anyway.

PS: The Electric wire 220v terminals look really bad. I changed them. Will put some solder next time.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Ordered two new 5/40uf and changed them for Preventive maintenance.

A unit 5/40uf tested are 4.31/38.5 uf

B unit 5/40uf tested are 4.2/36.2 uf

PS: 5 uf is for Fan, 40 uf is for Compressor.

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Routine maintenance on HVAC save you $12,000

In this 5 bedroom 2 story house I found another gas furnace lay horizontally over the attic. So each floor has their own HVAC system.

PS: Totally I changed 4 capacitors and one PCB....................

[sam_sam_sam]

Re: Routine maintenance on HVAC save you $12,000

This is just me BUT when I one pole contacter I change them on site
Here is why I do this with one pole contacter only break one side of 220 so that means that you still have 120 volts going to the compressor and fan not problem unless you have a short in either the fan or compressor to me this is not a good thing I always use two pole contacter for this reason

[capwizard]

Re: Routine maintenance on HVAC save you $12,000

Yes, 2 pole compressor contactor is better......

1 vs. 2 pole contactors
I have always replaced the contactor with the same thing that was already in the unit. If it was a single pole, put a single pole back. But the other day I was told that I could just use a double pole for for all replacements.

Goodman puts single poles on all their builders units doesn't seem to make a difference in the long run I think they're just cheaper.

What is a Single Double & Tripple Pole Contactor -and Can / Should you change yours?
https://www.youtube.com/watch?v=o-bjYucLXBk

how to replace a contactor
https://www.youtube.com/watch?v=3oz5HLk6ZDk

[ljintexas]

Re: Routine maintenance on HVAC save you $12,000

The reason they use a single pole contactor is two fold, first, and foremost, it is cheaper. However, in theory, it saves them from having to furnish a crankcase heater for the compressor by applying 120 volts across the motor windings of the compressor, keeping the oil warm that is in the crankcase.

Now you know.....the REST of the story!