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In a VS air handler with a single speed heat pump, does the blower operate at the same top CFM in heating and cooling?

Thanks. Didn't mean to be confusing.

When I check the Trane site, it is not clear which units are scroll compressors, except, I think, it's variable speed top end condensing unit. At this point,...

It would be a 5T/410, replacing a 5T/R22. I am not looking for the highest SEER but the most reliable. In the past, I've read of EMI and circuit board problems with VS air handlers (they are less...

Does Trane require a new line set for the warranty? My line set is 3/4 suction and 3/8 liquid? I'd be replacing an R22 5T with a 410 5T.

Can it be cleaned with RX11 without voiding the warranty?...

The time has come to replace the 5T Carrier HP, about 9 years old, 10 SEER, due to leaks in the evaporator coil. Thought about replacing it a few years ago but put about a grand in repairs because...

The system continues to cycle normally. I doubt that a technician could find anything unless I can repeat problem. I guess it's possible that the condensor contactor hung up, but odd that it only...

How much ice would form on the evaporator without the AH running? I suspect that when the thermostat again called for heat within 20 minutes, the condensing unit and AH would have synchronized. ...

Would the compressor have shut down automatically without the AH operating?

New contactor and fan on the condensing unit in January.

Damdest thing.

As said before, what would have happened if I was not around, although I suppose if I wasn't the temperature setting...

It's not a new install. The system has been working fine this winter in HP mode and this summer in cool. The manual fan control works too.

It seemed like the stat hung up. Has that happened...

Carrier 5T Heatpump system with a Focus Pro 5000 thermostat.

While the AC was operating, I raised the temperature 2 degrees. A few minutes the AH fan shut down (after the normal delay), but the...

Pleaded filters reduce airflow to much at high CFMs for air conditioning. I can see them bow-in and hear them drop sometimes in the filter box (house has three) when the fan goes off. I suppose a...

Can you have a TXV on the AH for cooling and a fixed orfice or piston on the condensor? I would think so.

Thanks.

If it's a HP with piston-orifices (no TXVs) can a TXV be added to the condensor as well? It's presently a 10SEER system. I understand that a new AH would have be 13 SEER or higher.

After 1/2010 R22 systems cannot be manufactured for sale in the USA, but parts will be available.

Will it be possible to buy a complete R22 air handler rather than just the A-coil (a choice...

That's a good setting for all electric heat.

As long as the heat pump can maintain the temperature evening staying on you want you are heating for less that using all electric or aux. heat.

But...

Gas heat is less complicated, easier to maintain, and infinitly more reliable. Had it for decades when we lived in CT and knew many people who switched from oil to gas for the reliability alone.

When you enter the setup for each setting, you can scroll through the numbers that are available. 3 is a good start. I think all the numbers from 1 to 9 or 14 (depending on what is being set up)...

Forget that the installation manual says that. It doesn't have to be set to 9. Set both to 3. Also check that CPH for the compressor stage is 3, which recommended. The number merely determines...

Change the CPH for e-heat alone (emergency heat) to 3 and do the same for the aux. heat CPH setting. That way they will not cycle too rapidly. These setting are accessed through the manual in the...

Sorry: I meant to say "accumulator" not "receiver" in my question.

That's the point I've made to my tech. when I question all the complication of a HP for a place like central-south Florida. A location with rather consistent temps get the most out of a HP. All he...

I've thought that for a long time. When I say that to my tech. he looks at me crossed eyed, doesn't understand.

A previous home near West Palm had two ACs and resistance heating. Heating in the...

Yes this an excellent observation and points out one of my criticisms of HPs. They can save money if running right but are complicated and the average homeowner has not idea how well they are...

That makes sense and I suspected cost can be a factor.

But would a HP have more refrigerant in the system than an equal AC --both properly charged? How much refrig. is stored as liquid in the...