Since this is not a DIY site we can't give instructions however Ecobee support can help you if you call them.
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I have a question about the wiring. I have a Peerless oil burner and I am going to be using Ecobee4 thermostat to control it. I haven't installed the thermostat yet.
Downstairs- RH (white) and W/B (Black) wire.
Upstairs- RC jump RH (Red). RH (Yellow). Y/O (Black). W/B (Black) wire
I am not sure what W/B wire is and what Y/O is. The instructions don't have these wires listed and the backplate doesn't have these letters on it. The existing thermostat works just fine with these wires but I am not sure the purpose of them.
Thanks.
Since this is not a DIY site we can't give instructions however Ecobee support can help you if you call them.