Heat/Em. Heat/Aux Heat/W2 question....

[zw17]

If the title wasn't confusing enough, this post might be

American Standard HP system with a propane gas back up 90+% furnace.

Honeywell Vision Pro 8000 3/heat 2/cool T-stat

I cannot for the life of me figure out how to get the Y1 signal to drop out if and when the back up heat is called for.

I was told that I could avoid the fossil fuel kit by using the VP8000 stat.

Any advice would help.

[tinknocker27]

something is wrong in your set up.

[BowhunterNC]

Are you using a outdoor temp sensor?

[zw17]

Are you using a outdoor temp sensor?

No, and I see in the installers guide that you need a OA sensor stat to allow the t-stat to act as the fossil fuel kit. But how is that going to allow Y1 to drop out on a call for back up heat? It reads like it is more of a compressor lock out in low OA temps.

[BowhunterNC]

You will lose the call on Y1 if the temp. drops below the setup point (od sensor) and W1 will call turning on the furnace

[beenthere]

Honeywell doesn't have the greatest install instructions, when its comes to their thermostats.

However.

Discussions of this type are not allowed in the open residential forums.

Get your post count up to 15 and apply for pro membership.
Once accepted, you'll have access to teh pro tech forums. Where this set up has been gone over many times.

Along with a multitude of other advise and wisdom about many other things.

Plus, you'll have access to the Pro Educational forums.

[BowhunterNC]

The furnace and the heatpump won't run at the same time

[zw17]

Discussions of this type are not allowed in the open residential forums.

Get your post count up to 15 and apply for pro membership.
Once accepted, you'll have access to teh pro tech forums. Where this set up has been gone over many times.

Sorry Beenthere. I will do this and check out the PTF.

[Airmechanical]

The furnace and the heatpump won't run at the same time

actually that information is incorrect

when the system goes into defrost, the furnace and heat pump will run at the same time

ofcourse, it must be hooked up properly for that to happen!

and this is why an experienced pro should hook it up



.

[zw17]

actually that information is incorrect

when the system goes into defrost, the furnace and heat pump will run at the same time

ofcourse, it must be hooked up properly for that to happen!

and this is why an experienced pro should hook it up

Trick answer huh?