Honeywell TH 4110D wiring question

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hc_24
Posts: 2
Joined: Sat Nov 20, 2010 10:12 am

Honeywell TH 4110D wiring question

Post by hc_24 »

I have a EWC -ST3D controlling 3 zones. I have oil furnace hot air heating and american standard central airconditioning. I want to replace the dial thermostat with a honeywell TH 4110D programmable thermostat on Zone 1 since it is the compatible thermostat per the manual. The wires coming in Zone 1 are W, Y, R1, O, B and G from the EWC-ST3d panel. The terminals available on the thermostat are: W, Y, G, O, Rc, R, B and C. Can you suggest the wiring diagram to connect the wires to the thermostat?

Thanks You.
-Harsh
Eric K.

Re: Honeywell TH 4110D wiring question

Post by Eric K. »

Harsh,

Match terminal to terminal. Also, jumper the R and Rc on the thermostat and connect to R1 on the zone panel. Do not connect the C, use the batteries to power the thermostat.

Eric
hc_24
Posts: 2
Joined: Sat Nov 20, 2010 10:12 am

Re: Honeywell TH 4110D wiring question

Post by hc_24 »

Thank you!
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