Tested with a heatpump (0x08) and MP100 pool module (0x11), custom entities
compared against RC300 operation and a power meter on the circulation pump.
- boiler `poolon` (0x48A offset 0), writable, RC300 writes 01/00
- boiler `hppoolon` (0x488 offset 0 bit 6), pool heating actually active
- pool `poolshuntset` (0x5C4 offset 0, heatpump -> MP100), shunt setpoint;
`poolshunt` follows within ~2 min
- pool `poolpump` (0x5BA offset 4), 0 = running, 2 = off. This byte is only
in MP100 -> heatpump telegrams, so the pool module now also handles
telegrams it sends to other devices
- simulator: `test pool`
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013YrkDbvxEv3ZMS7SPSKCGd
