Does this unit properly control a 2 stage furnace?
910899
We have 2 separate furnaces in our home and this unit only controls one of them. It does a wonderful job.
910900
I think that it is supposed to handle up to 3 stages on the furnace. Hopefully Honeywell could clarify that. My experience is with my 15 year old furnace which is a heat pump. It is not 2 stage. This thermostat does allow my furnace to switch to auxiliary heat when the temperature gets below 22 or so.
910901
I have a 1 year old variable stage Lennox high efficiency gas furnace and the thermostat and control work just fine.
1466815
No it does not allow for that, it has a control on top of unit 1-5 for different heat settings I only need to turn it to number 2 as it heats good at that
1916860
Yes and no. It works on one and not so much on another that is just like it. Right after I 'set' the times it works on that one, on and off. Then after a few cycles it quits. After turning it on manually, it will turn off as set for a few cycles. However, after a cycle or two it won't turn that one off and I need to 'reset' the controller. I haven't connected an appliance module on it.
1170873
Yes, it has settings for heat pumps or natural gas. I use it on my natural gas furnace.
1330749
Their are two knobs that independently control each burner. Beware, they don't work well on the low setting. They don't adjust very well and for this reason the unit is frustrating.
1545210
Actually it controls the furnace, not A/C. But other than that, did you get any solid lights? Mine gave no lights, solid or blinking, and I had 24v.In my case, it was one of the relays that wasn't transferring the 24v to the blower.
412012
Both...which is why it must be powered by EAC terminals on integrated furnace control board. Not a do it yourself project.
2267774
In that it works a/c and furnace, yes. For tech questions suggest you ask google.
1172424
yup but you need to power it from another source if you only got two wire , depending on the furnace you may have 4 . i had the battery powered stats that did fine on a two wire but wifi needs more power so i got a transformer to run the stat . Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse my furnace had no point to put a third wire for common power "c" terminal so i went and wired stat to the aux supply plugged it in a remote outlet and ran another set wires to stat on wall all set and running fine if you get this set up the tech line at h-well can give you the terminals to mount your 2 new wires the ins booklet had no diagram to run a aux power source c n rc for the new power and remove jumper r n y for the furnace wire pair call to make sure very helpfull Coleman Cable 09632 CL2 Bulk Thermostat Cable, 18-Gauge 2-Conductor 100-Feet used
1290664
No, this thermostat requires constant power - you will need a 24V "common" wire connected to the thermostat's "C" terminal. You would either need to run additional wires from your furnace to this thermostat, or there is an adapter you may be able to install into your current setup, but I'm not sure if you can make it work with only two wires. Either way you will need to modify your current configuration to include the common wire. See Venstar ACC0410 Add-A-Wire for all 24VAC Thermostats
304045
No regarding the wattage. While the thermostat does control draw, user can't restrict it to only certain wattage.
2035225
My furnace installer who has experience with these units says either will work, but the return air is preferred for greater efficiency since the manual unit (mine) only starts when the blower motor turns on. I also found I had to set the humidity control at a higher rate than the manual specified to create more humidification because of the previous statement.
585509
Because my builder ran only 4 wires from the thermostat to the furnace, the fan is always on auto. But regardless, I have seen nothing that would allow you to program the fan only.
999220
That means that it has the capability of varying its output to suit the load versus running at one speed all the time. Normal furnaces are on or off and run full capacity even when they don't need too. This one can modulate its gas input to run at a lower capacity which is more efficient than single stage units.
871645
Yes, it works very well in my house. I only had a small space in the furnace to install the unit. It fit well and works very well.
2081077
John: No. This kit is designed for a single zone (multi stage system--this description often confuses people. multi-stage refers to differing heat and or HVAC levels---not number of zones in the house). The included interface panel is installed at the equipment and serves one zone only. If you have a home with 3 zones and 3 separate HVAC units, then you would need 3 kits (be careful here because the wireless signal of each unit might bleed over and cause problems with the others). If however you have a home with one HVAC unit running 3 separate zones (which is rare in a residential set-up) then you need to change out your existing Zone controller at the equipment and go to the Honeywell Truezone Panel. Honeywell does make a wireless adaptable Truezone System (not sold on Amazon). For a one plant multi-zone system you would need the Truezone panel, wireless Multizone interface and the required number of wireless thermostats. No sure Amazon sells all you need. I would strongly recommend a simple call to Honeywell Customer/Tech support and lay out what you are trying to accomplish. Be careful how you ask the question. The Honeywell unit Amazon sells is designated (by model number) as one that should only be installed by a professional HVAC tech (of which I am not). When I called about my unit, they would not answer once I told them I was not a HVAC contractor. I got around it by calling again a fibbing a little. Alternatively, you could try searching the model number and calling one of the vendors (ie SupplyHouse) as they offer free technical advice--but not as good a price as Amazon. Lastly, unless I had much experience with HVAC systems, I would not attempt installing this unit in a multi-zone system with professional HVAC help. Good Luck, Steve
1400477
Yes, moderate difficulty. I wanted that unit because of it's ability to turn the furnace on at night, then the AC on during the day. It woks fine.