Results 1 to 12 of 12
Thread: 2 condensers, one evaporator
-
10-25-2011, 02:33 PM #1
New Guest
- Join Date
- Oct 2011
- Location
- Baltimore
- Posts
- 4
2 condensers, one evaporator
Can I replace a 10 ton single circuit, AC only condensing unit with two 5 ton split systems condensers?
I have a situation where I cant replace the existing R-22 evaporator and a R22 condensing unit is not available.
I plan on running the units in tandem. What controls should I have to make this work? How can I ensure proper and equal oil return? The old unit is 230V 3phase, 5/8 LL and 1 3/8 suction line.
Any input would help.
-
10-25-2011, 05:54 PM #2
Global Moderator
- Join Date
- May 2000
- Location
- Indianapolis, IN, USA
- Posts
- 31,559
I wouldn't. Get a matched 2 circuit coil. Otherwise, may have to use solenoids or checkvalves to aim refrigerant the right direction.
-
10-25-2011, 05:58 PM #3
Professional Member
- Join Date
- Jul 2001
- Location
- maryland
- Posts
- 1,315
Buy a Goodman 10ton R-22 condenser.
Saving the world...one service call at a time.
-
10-25-2011, 06:13 PM #4
Professional Member*
- Join Date
- Sep 2008
- Location
- Mesquite Tx.
- Posts
- 341
One of the compressors will end up with all the oil. Then you know what happens to the other one.
Nos operor non pensio volutabrum
-
10-25-2011, 06:24 PM #5
Professional Member
- Join Date
- Feb 2010
- Location
- MEXICO
- Posts
- 410
the dual-circuit evaporator?
-
10-25-2011, 06:59 PM #6
Professional Member*
- Join Date
- Dec 2010
- Location
- Down by the river
- Posts
- 1,417
you can replace it with 2- 5 ton systems twinned into the same duct.
It's hard to stop a Trane. but I have made one helluva living keeping them going.
-
10-25-2011, 07:38 PM #7
New Guest
- Join Date
- Oct 2011
- Location
- Baltimore
- Posts
- 4
Checked with Goodman he in MD. No 10 ton R22 units available. The evaporator I have is a 3 circuit horizontal coil in a section of duct being used for a process. Changing that coil is not an option at this time. I'm thinking if I split the piping even between the two units, put check valves in the liquid lines, and install crankcase heaters, this might work. If only I could install a oil equalization linebetween the compressors.... Thoughts?
-
10-25-2011, 08:12 PM #8
ARP Committee/Professional Member*
- Join Date
- Apr 2007
- Location
- Kaufman county, Texas
- Posts
- 8,361
I am having a hard time believing you cannot get a 10 ton condenser, might need to make some more calls.
If you really cannot, can you repair the old one in any way? What is wrong with it?I draw all my schematics in crayon now. If they cannot always be correct, they can at least be colorful.
Service calls submitted after 3PM will be posted the next business day.
I give free estimates [Wild Ass Guesses] over the phone.
I am not in business to make money from other people so that I can afford to work for you for free.
If the fall is over, mmmm let's say, 6 feet or so,.. I do not 'bounce' very well.
-
10-25-2011, 08:52 PM #9
Professional Member
- Join Date
- Jul 2001
- Location
- maryland
- Posts
- 1,315
I JUST BOUGHT ONE about three weeks ago.
Originally Posted by FitterTom
Call the Capitol Heights branch.Saving the world...one service call at a time.
-
10-25-2011, 09:30 PM #10
Professional Member
- Join Date
- Feb 2010
- Location
- MEXICO
- Posts
- 410
which is the current model or brand of your machine?
-
10-25-2011, 10:25 PM #11
Professional Member*
- Join Date
- Dec 2005
- Posts
- 1,655
Please don't do it. Please don't try it. You will give HVAC a bad name. Originally Posted by FitterTom
Customer WILL HAVE to spend the money. Else, back off.
-
10-26-2011, 07:47 AM #12
New Guest
- Join Date
- Oct 2011
- Location
- Baltimore
- Posts
- 4
Wow. Goodman in Frederick has a 10 ton condensing unit. I checked a few weeks ago and none were available. Problem solved, thanks.
Reply With Quote
