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My experience with the stat leads me to believe it doesn't always report it's measured temperature.
A good way to verify is let it overcool then turn off cooling so it doesn't have a target...

Does anyone have any specific info on the Frost Control algorithm?
I understand when the outside temperature gets very cold it lowers the target humidity setting, but by how much? Does anyone have...

An ECM doesn't have to have a PFC front end as shown in this case.

Actually correcting for power factor is something the power company wants but it may actually make the ECM controller less...

You may want to look here:

http://www.smarthome.com

I can venture a guess on why it would always be ok for a single pipe system.

When the induced draft blower draws air into the house the resultant pressure in the house would be higher than that...

Theoretically yes, in reality ?

Since it is not an expensive unit I'd much rather have them compromise on the cabinet vs. it's innards. Once it's installed the fact that it is thinner becomes insignificant.

I've had the downflow version (93%) for 1 1/2 yrs. now with no issues, it works well. I'd buy another if I had to do it over again.

In my installation it goes right by the inlet.

I have a GCV9 downflow and use a 20"x25"x2" filter.

Don't forget about your AC, how much AC you need could determine what blower size you need.
Your installer should be able to tell you.

If you could get us some model numbers I'm sure we can get the info you need.

2 CPH will make it run longer and be off longer. The unit removes humidity best when it has been on for some time and worse in the transition periods. Don't know if it will kick in the second stage...

You may consider running the upstairs unit at 2 CPH.

Check that your CPH (cycles per hour) settings are correct. If they are set too high the unit(s) wont run long enough for adequate humidity removal. You may want to call the manufacturer and see what...

I have a GCV90704 which I think is basically the same thing but a downflow.
It's been working perfectly for a year now in a 2000 sq ft ranch.

I have an IAQ with about the same amount of play. Until mentioned here I never noticed it so it's not an issue since I've had it for over a year now. It's snug enough that it doesn't move unless I...

:D

It's not a heat pump application so the "O" is used for something else like probably a feature activation line.

Refer your installer to this post:

http://hvac-talk.com/vbb/showthread.php?p=1328894#post1328894

Y and O for Goodman

I'm using ramp profile B.
on, 50% for 1/2 min,constant 100%, 100% 1 min., off

Have your contractor wire it like a Trane, it will probably work then, mine did.

This was an older post, the ductwork has since been revised.
As I remember the temperature delta was within specs.

Thanks!

There is no visual indication if it's calling for dehumid or not.

But
If the yellow LED is on it's calling for dehumidification.
It's it's off, it's operating at full speed.

The best way to...

The green blower speed LED does one flash per 100 CFM.
At full speed, 1000 CFM, you'll see 10 flashes.
At reduced speed, 850 CFM, you'll see 8 flashes.

Note: it's kinda hard to count these but...

From the product spec. for a Goodman GCV90704CXB:

High Fire Input 69000
High Fire Output 65000 - 94.2%
Low Fire Input 48000
Low Fire Output 45000 - 93.7%

The burner efficiencies are...