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-   -   Can I use an a/c evaporator A coil with a Heat Pump condenser? (http://www.diychatroom.com/f17/can-i-use-c-evaporator-coil-heat-pump-condenser-40673/)

fiver 03-19-2009 10:32 AM

Can I use an a/c evaporator A coil with a Heat Pump condenser?
 
my 20 year old carrier 2.5 ton a/c condenser unit is bad. I can get a "hardly used" 8 year old 2.5 carrier HEAT PUMP condenser nearly free, just to get thru this summer (want to replace everything in the fall or next spring after some construction).

what are the chances this can be used with my existing A/C evaporator A coil for a/c-only operation ? I'm not too concerned with perfect efficiency at this point, obviously, just need a 1 season solution and I know a guy who knows a guy who would install it for for a case of beer and a fishing trip :-), but he is not available this week to ask this question, and I have to jump to get this unit.

Thanks!

beenthere 03-19-2009 11:10 AM

Would almost need model numbers of both the old coil, and the 7 year old outdoor unit, to make a guess.

SULTINI 03-19-2009 01:58 PM

Fiver used unit
 
Go for it what do you have to loose????

Should get you through the summer as long as the coil is the same tonnage as the outdoor unit.

hvaclover 03-20-2009 03:50 PM

Not possible. The ac coil is sized for ac only and the design criteria for a hp coil is diff than an ac. Rows of tubes, fin spacing, press drop.

SULTINI 03-20-2009 05:29 PM

Coil
 
Quote:

Originally Posted by hvaclover (Post 247472)
Not possible. The ac coil is sized for ac only and the design criteria for a hp coil is diff than an ac. Rows of tubes, fin spacing, press drop.


I knew you were going for this one, please read the question again, he was asking for the summer. 21/2 ton will work with a 21/2 ton condensing unit. It is a matched set, it has to work.:furious: Remember read the question, all apologies accepted. Thanks for not banning me.

hvaclover 03-20-2009 05:40 PM

Quote:

Originally Posted by SULTINI (Post 247523)
I knew you were going for this one, please read the question again, he was asking for the summer. 21/2 ton will work with a 21/2 ton condensing unit. It is a matched set, it has to work.:furious: Remember read the question, all apologies accepted. Thanks for not banning me.

Hey if you are into mismatching knock yourself out.

I was quite aware of what was posted. A 2 1/2 to coil on one mfg condenser might do two tons or less. Conversely, it might do three tons on another.

That's why it's called "Nominal tonnage".

Go read a design manual 'ya hack.

SULTINI 03-20-2009 06:01 PM

21/2 TON is 21/2 TON
 
Quote:

Originally Posted by hvaclover (Post 247529)
Hey if you are into mismatching knock yourself out.

I was quite aware of what was posted. A 2 1/2 to coil on one mfg condenser might do two tons or less. Conversely, it might do three tons on another.

That's why it's called "Nominal tonnage".

Go read a design manual 'ya hack.

Look here King Hack the guy is using the unit for a couple months then replacing it with a matched set.
It's a freebie for the summer, what's wrong with you
Besides your picture.?? So if is a little up or down Eng wise the pressures might be off a little bit no biggie.
I say use it and knock off your nominal engineering Baloney. YOU ARE :confused1:

hvaclover 03-20-2009 06:08 PM

Quote:

Originally Posted by SULTINI (Post 247537)
Look here King Hack the guy is using the unit for a couple months then replacing it with a matched set.
It's a freebie for the summer, what's wrong with you
Besides your picture.?? So if is a little up or down Eng wise the pressures might be off a little bit no biggie.
I say use it and knock off your nominal engineering Baloney. YOU ARE :confused1:

And if he follows your advice and just throws any old evap in there are gonna repair it when it either floods back and slugs the comp or fires from under or over pressure?

Jesus Christ I am glad you don't work my area! I'd be cleaning up after you!

Plumber101 03-20-2009 07:30 PM

Quote:

Originally Posted by SULTINI (Post 246942)
Go for it what do you have to loose????

Should get you through the summer as long as the coil is the same tonnage as the outdoor unit.


The coil needs to be matched to the HP.

If you are going to repair a system then do it right the first time. Don't hack the job

On another note is there any way to get IN-Sultin locked off this site. What a num-nut.

pnutzhome 03-20-2009 11:05 PM

Quote:

Originally Posted by Plumber101 (Post 247601)
The coil needs to be matched to the HP.

If you are going to repair a system then do it right the first time. Don't hack the job

On another note is there any way to get IN-Sultin locked off this site. What a num-nut.


plumber ,my toilet is clogged can you come out and clean it?

kenmac 03-20-2009 11:21 PM

Quote:

Originally Posted by pnutzhome (Post 247697)
plumber ,my toilet is clogged can you come out and clean it?






Look, I don't have a dog in this fight......PLEASE LET IT GO..:thumbsup:

hvaclover 03-20-2009 11:44 PM

Quote:

Originally Posted by pnutzhome (Post 247697)
plumber ,my toilet is clogged can you come out and clean it?

HHMMMM......Punz must be into scat big time.

newtech 03-21-2009 06:07 AM

Quote:

Originally Posted by fiver (Post 246829)
my 20 year old carrier 2.5 ton a/c condenser unit is bad. I can get a "hardly used" 8 year old 2.5 carrier HEAT PUMP condenser nearly free, just to get thru this summer (want to replace everything in the fall or next spring after some construction).

what are the chances this can be used with my existing A/C evaporator A coil for a/c-only operation ? I'm not too concerned with perfect efficiency at this point, obviously, just need a 1 season solution and I know a guy who knows a guy who would install it for for a case of beer and a fishing trip :-), but he is not available this week to ask this question, and I have to jump to get this unit.

Thanks!

Should be ok to get you thru the summer.

newtech 03-21-2009 06:09 AM

Quote:

Originally Posted by Plumber101 (Post 247601)
The coil needs to be matched to the HP.

If you are going to repair a system then do it right the first time. Don't hack the job

On another note is there any way to get IN-Sultin locked off this site. What a num-nut.

He is not doing a permenant repair. A fix for the summer until he can replace the system:thumbsup:

SULTINI 03-21-2009 06:14 AM

Horse power
 
Quote:

Originally Posted by Plumber101 (Post 247601)
The coil needs to be matched to the HP.

If you are going to repair a system then do it right the first time. Don't hack the job

On another note is there any way to get IN-Sultin locked off this site. What a num-nut.

Sounds like your doing Refrigeration work with horsepower. What we are talking about is a temporary unit freebie for a couple months then throwaway.
Why do you call me names I never called you any, besides I'd rather take advise from an apprentice than a plumber. Why should I get thrown off ?? You guys need to get some common sense.


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