Panasonic/Innova FanCoil Wall Control Panel INNOVA EFB749II Panasonic PCZ-EFB749

Hi everyone,

I’m using Panasonic P-FMM40 fan coils with the Wi-Fi Wall Module PCZ-EFB749. From what I understand, these Panasonic units are functionally equivalent to the Innova Filomuro with the INNOVA EFB749II controller. I’m currently looking for a way to integrate and control these fan coils through Home Assistant.

This integration just supports a local API and is for other Innova Devices: danielrivard/homeassistant-innova: Home Assistant Integration for Innova 2.0 Heat Pump and AirLeaf

Setup

  • Fan coil: Panasonic P-FMM40 / Innova Filomuro
  • Controller: Panasonic Aquarea Air Smart Wall-Mounted Control Wi-Fi (PCZ-EFB749) / INNOVA EFB749II

What I’ve tried

  • Scanned the Wi-Fi module with nmap → no open local ports found
  • Monitored network traffic and DNS logs
  • Observed that all communication is cloud-based over HTTPS, with no apparent local API

Observed endpoints
The controller/app communicates only with:

  • api.aquarea-home.solutiontech.tech
  • core.grpc.panasonic.solutiontech.tech
  • core.panasonic.solutiontech.tech

Mobile app

iOS app: ‎Aquarea Home App - App Store

I also attempted to inspect the traffic using Proxyman, but the results were quite limited. I was only able to confirm the HTTPS/GRPC communication to the endpoints listed above, without gaining meaningful insight into the API structure.

Goal

My goal is to integrate this system into Home Assistant, ideally via a local API, or alternatively through reverse-engineering the cloud API if feasible.

If anyone has:

  • Experience with these Panasonic / Innova Wi-Fi controllers
  • Insights into the Solutiontech cloud API
  • Knowledge of existing integrations or reverse-engineering efforts

…any help or pointers would be greatly appreciated.

Thanks in advance!