ST-2D two (2) zone with A/C and Heat pump >>upgrade to NCM-300 and ecobee 3

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Richterbox
Posts: 2
Joined: Mon Jan 29, 2018 10:47 am

ST-2D two (2) zone with A/C and Heat pump >>upgrade to NCM-300 and ecobee 3

Post by Richterbox » Mon Jan 29, 2018 11:08 am

Hello,
Can you send me a schematic on wires on this upgraded setup? I have found this: http://ewccontrols.com/acrobat/090512a0369.pdf
But it lacks the heat pump hook up.
Here are several pictures of my current setup. I already have a NCM-300 ready to go and 2 ecobee 3. I have been told to ignore my current O/B and Blue wire such is a RH on my setup and repurpose for a common to avoid PEK install as I have spare wire on both zones. Is this correct?

I have:
- oil burning furnace
- heat pump mounted on top of furnace ( I think year round)
- outside Air Con unit.
- 2 motorized dampers (1 per zone/ floor)
- 2 zones (1 per floor)
- 2 floors
- 1 thermostat per floor

Seems like I'm uninstalling my heat pump control completely?
I've included current (old) system photos for reference.

Please Help?!
Andrew
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Paul Z.
Posts: 186
Joined: Thu Dec 08, 2011 3:05 pm

Re: ST-2D two (2) zone with A/C and Heat pump >>upgrade to NCM-300 and ecobee 3

Post by Paul Z. » Tue Jan 30, 2018 8:09 am

Give me a call have a few questions 18004463110X490

Richterbox
Posts: 2
Joined: Mon Jan 29, 2018 10:47 am

Re: ST-2D two (2) zone with A/C and Heat pump >>upgrade to NCM-300 and ecobee 3

Post by Richterbox » Tue Jan 30, 2018 4:10 pm

Here is the heat pump that is also on oil heater. Is this system considered duel fuel?
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