Xfinity REHP1AZ0 Zigbee?

My brother just moved into a house that has an old Xfinity system that I’m converting to HA. It has a system box, a Resolution Products REHP1AZ0. The manual has Zigbee printed in it, but it isn’t clear as to whether it can be paired with another Zigbee system, like something plugged into HA, or how to do it. I was planning to pull the wires and put them into an esphome device, but if I can get it paired to Zigbee, that would probably be easier. Has anyone messed with this?

From what I can gather (from a cursory search), it contains a Zigbee controller chip so it can support Zigbee sensors. It doesn’t look like it’s a Zigbee device you can use with ZHA/z2m/etc.

@pashdown I moved into a new home with the same Xfinity system. Did you figure out how to connect REHP1AZ0 to HA? I have found nothing online on how to put it into pairing mode.

I pulled the wires and put them into an ESPhome ESP8266 instead.