There are a few Iaqualink integrations out there including the official one. Support for the devices that you can access through the Iaqualink app is limited and us in Europe have struggled to access the heat pumps. I have a Zodiac Z400 IQ and have built this HACS integration to add all the temperatures and status as well as control the heat pump. Please see depo here GitHub - colegates/iaqualink-zodiac-integration: This is an integration to support the Zodiac Z400iq Pool Heat Pump for Home Assistant ยท GitHub
Claude code is great as it built this for me in an hour or so.