EWC Controls Forum

Not really sure why you have an online forum when every answer is "call us"...

I have a UT-3000 with 2012 model year Amana communicating 2-stage HP and 2-stage (non-modulating) communicating gas furnace. 2 of 3 zones have Honeywell Prestige 2.0 thermostats that I have installed; third is an old Honeywell single-stage HP stat. Looking for advice as to how the thermostat should ...

After spending quite a bit of time working with the folks at EWC (and they're great to work with, BTW), the bottom line is that the CTK03 is not compatible with the UT3000, due to some assumptions Honeywell made when they designed the CTK03 - essentially, it wants to be the single source of control ...

Outside temp finally dropped enough for the gas backup to kick in, went right to 60% system demand with 2 zones calling at 37%.

The plot thickens. Today, I came home and found 2 zones calling for heat, the OAS shows 41 degrees and the system was running in hi fire and showed 62% system demand. And that's with the OAS SP at 30 degrees. So clearly, something's not right. I power cycled and did a full reset of the UT-3000 to ...

My board is v1.16 (installed new last July) and the legacy demand is set to 75% When the HP stats are calling for heat, the individual zones show 37%, which seems correct since the stat thinks its controlling a 2-stage heat pump. But still, with only one zone calling for heat (at 37%), the system ...

UT-3000, 3 zones, Dual-Fuel Amana ComfortNet 2-stage HP and 2-stage gas furnace. Communicating stat on Z1, Honeywell Prestige on Z2 & Z3 configured for heatpump mode. OAS SP is 32, W2 threshold is 85% When the outside temp is below 32 and a single zone calls for heat (always Z2 or Z3, as Z1 is in a ...

Any ideas or suggestions?

Doesn't explain why or how the CTK03 can be calling for heat while the UT3000 shows no call for heat from that zone. And that's the more pressing problem.

I've got a newly installed (May of this year) Amana 96% propane furnace / 16-seer 2-stage heat pump with a UT3000 board, 3 zones and one CTK03 thermostat on Zone 1 and H/C stats on the other two. UT3000 has v1.16 firmware installed. Everything worked fine all summer long, but now that it's heating ...