ecobee パワーエクステンダーキット Cワイヤーアダプター - ecobee スマートサーモスタット用 - プログラム可能なWiFiサーモスタットアクセサリー

Works fine. I recommend this product.

DIY installed on a 20 yr old combo AC/Propane Furnace unit to run with the Ecobee Essential. Exactly followed the easy to read and understand instructions for a 4 wire system that needed a C wire. Magnet on the back works well and there is about a foot of new wire to so that the PEK placement has some flexibility. If you have basic mechanical ability, it’s a pretty straightforward DIY project. Their video does a good job helping explain and showing installation. If you’re not sure if you can have a C wire or where this connects, there are lots of videos out there on how to do this. Installation is basically turn off the power, locate where your 4 wires terminate at the AC/Furnace control board, disconnect and reconnect the 4 wires into the marked and color coded holes in the PEK - it’s a button push and slight tug to confirm the wire is secure. Then connecting the 5 marked and color coded PEK wires on the board where the 4 wires were attached. 4 of the wires go where the original ones went. The 5th wire is the new C wire, and it goes to the C wire terminal on that board. Double check, triple check, then install your Ecobee and keep going per the instructions. Bottom line: Easy and the Ecobee is working great! (Note: With our older furnace, bc of how the pilot and gas ignition works, the Ecobee thermostat setting for the furnace under “Equipment” had to be set to be controlled by the furnace and fan instead of the Ecobee. It was straight forward using the menus on the screen.)

Several weeks ago I woke up to 6-inches of water in my basement. I got off easy compared to many of my neighbors, the only thing broken for me was my PEK. I unconnected the dead one, connected the new one and my furnace and ecobee thermostat started working again.

Works perfectly for people who don’t have fifth wire at thermostat so you don’t have to run a wire through the wall to the furnace love it easy install any one can do it.

Works perfect, and considerably cheaper than most places. Works as it should