Hello, I'm new here and hoping you guys can help clarify something for me. I have an Ecobee4 which I connected to my thermostat via supplied PEK adapter. This allowed me to free up a wire in my 5 conductor thermostat wire so I can wire my solenoid off my humidifier to my ecobee (C->Solenoid->ACC+). This worked perfectly allowing me to control my humidifier and still allow the Ecobee to work as normal.
So, I also have a VanEE 90H HRV and I believe it should be interlocked to the furnace fan. So I connected the appropriate pin outs from the wiring harness to the coil in my relay. I followed the wiring diagram in my owner's manual of the HRV on how to connect the wires to the furnace control board. So this is where it gets a little confusing. I have the PEK connected, so I made the connections after the furnace and before the pek. So I basically did the following:
G terminal to common contact on relay
NC contact on relay to G wire on PEK
NO contact on relay to R terminal
My HRV now kicks on the fan when its activated and it seems that the Ecobee will turn the fan on as well when needed. All seems to work fine.
I have attached pictures of the wiring diagrams I followed.
My questions are these:
1) should I have made the connections after the PEK connector? (Between pek and thermostat)
2) does this effect the Ecobee's functionality?
3) is there something I could have done so that the Ecobee can see the fan running when the HRV turns it on?
Is this how you wired the interlock?
Kind of hard to read, it's a pretty blurry picture. I cant read the connections at the thermostat, and I believe the NC contact from the interlock goes to the G on the PEK. If so, then yes! That is how I connected my wires.
You can click the pic or file name to enlarge the picture so it's not blurry.