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Next time your t-stat calls for heat, take note of the time. Wait about 12 minutes and then stand in front of it (the t-stat) and see if stage 2 kicks in (without the temperature in the house...

No. As I said earlier, even if it is 55* outside and the setpoint temp is set to 75* on the t-stat it would come on. If I change the span settings to "stage 1 = 1, stage 2=6" it would come on. And,...

I feel I should give an update on my t-stat.

It turns out that I had a defective t-stat...actually 3.

After replacing the t-stat with another (same model) and then replacing it again, I finally...

Are you saying that E and W2

Call and ask your local HVAC service installer/service company.

The question was

If W2 turns on/off aux heat
and
E turns on/off a relay that disables the condenser
then

If W2 and E were jumpered together like so many thermostat manuals suggest, wouldn't...

That cannot possibly be true.

Here's some info for IDEAL functionality.

Do the math - the math does not lie.

A heat pump can extract heat down to 0* Kelvin (which is semething like -459* F) This is what is called "absolute...

I am not exactly asking a trade secret here. It is a very simple question. If I was asking how to do an install then, ok, maybe I would understand. But asking a simple question like this deserves an...

I have a Goodman single stage HP with 10K strip (so it is a 2 stage heat, 1 stage cool system)
In the instruction manual for my T-stat, there is the recommendation to jumper W2 and E terminals....

I have a heat pump and this morning I was thinking about it's efficiency.

The pipe/tubing insulation is on the thicker of the two lines and it goes from the exterior of the air handler to the...

Side job.

In either case, the instructions say nothing about "if temperature rise is not detected within x minutes, stage 2 is activated." It seems to me that as long as there is temperature rise,...

Its a CTC model 43558 (2 heat, 2 cool)

Here is a link


http://www.ntsupply.com/files/products/43558.pdf

I believe I have a defective t-stat.

I have a HP with electric strips. Everything works fine except stage 2 kicks in after about 15 minutes of operation - regardless of temperature increase.

If...

I have a CTC model 43558 T-stat and an electric hybrid heat pump. All is working well exept stage 2 heat (single stage 10K strip) - It comes on earlier than I would like as when it is 40* outside,...

Would just like to know so that I can call in a tech if I need to. Would hate to spend money on some thing that isn't broke.

Sree - open the air handler (top front cover) and set the following dip switches:


Run the unit for 20 minutes and take a temperature reading at 6" from the condenser outside on the thicker of...

I have a Goodman 2.5 ton 15 seer heat pump (2.5 ton 14 seer condenser and 3 ton AH). The unit comes pre-charged with enough R22 for 15 foot of line. I have 13-14 foot of line.

I know you are...