Question about Heating & Cooling
HEIL MAX PERFORMANCE 10 CENTRAL AIR OUTSIDE UNIT, RATED VOLTAGE 508-530. hOW MANY TONS IS THIS UNIT?
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Carrier air handler tonnage?
That is a fairly large difference. It is usually ok to have the inside evap. coil and blower up to 1 ton larger than the outside condenser. That will make the unit slightly more efficient as well as less likely to freeze up on low airflow situations. It is not recommended to install a new condenser on an old evap coil. There has been a lot of changes to the design of the coils in the last little while. For example a 10 year old 2 ton coil may only have 3 cubic feet of volume but a new 2 ton coil may have 4 cubit feet of volume.
There are many factors that may have infulenced the decision on what size condenser to install. Many of which can only be done by visiting the home and doing alot of work, checking the duct sizing bioth supply and return, inspecting the insulation and windows of the home etc. etc. Most of the time that never gets done. You can blame the contractor for not doing a complete check, but at the same time you can blame the customer because many contractors that are that good loose the job to a cheaper bid that did not no any of the research. It is a catch 22 for everyone involved.
There is ALOT more to sizing equipment that many people think, sadly that also includes many HVAC contractors. Way too many people use "rule of thumbs" or flat out "guess".
Sorry for the rant but your queston can only be answered by a good well educated HVAC contractor visiting your home. That type of a contractor is getting hard to find these days in such a price competetive world.
Posted on Oct 14, 2008
First check to see if you have afloat switch inside the air handler ar underneath the air handler. Its purpose is to shut the outside ac off if the drain stops up. Very common. If this is OK take cover off unit and with screw driver push in the contactor. It is located about the middle of the panel. It has main power at the bottom. If unit comes on you cave a control voltage problem. Meaning something is not allowing 24 volts to the contactor. If your out of Refrigerant the low pressure swich will have it off. Call a service tech. Rusty
Posted on Jun 09, 2009
The attic fan is not a part of your a/c system, and you should not run it while you are running the a/c. If you are currently using the attic fan, it is possible that someone wired it so that the a/c won't turn on while the attic fan is on. Otherwise if the thermostat is set below room temp, and says it is calling for cool, then the problem is most likely coming from an issue at the outside unit itself. Make sure to check your fuses, at the fuse panel and outside breaker. Hope this helps
FYI.. the only part of the system that might use batteries is the thermostat.
Posted on Jul 28, 2009
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