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Version 0.2.4 - Sanitize Mode Support

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@0xAHA 0xAHA released this 07 Jan 07:51
v0.2.4
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Learn about vigilant mode.

Release Notes

Version 0.2.4 - Sanitize Mode Support

🦠 New Features

Sanitize/Sterilize Mode (Optional Feature)

  • Optional sanitize switch for models that support hot water sanitization
  • Simple on/off control - Integration writes only to register 3 (0=off, 1=on)
  • Hardware-controlled behavior - The heat pump automatically handles:
    • Mode override (switches to electric heating)
    • Temperature control (sets to 65°C)
    • Auto-reset when complete (both tanks reach 65.5°C)
  • Not enabled by default - Sterilize register is optional in setup
  • Conditional switch - Only appears if sterilize_register is configured
  • Profile support - EcoSpring HP300 profile includes sanitize register pre-configured

New Profile

  • EcoSpring HP300 profile added to default profiles for easy configuration

📋 How Sanitize Mode Works

  1. When enabled via the switch, register 3 is set to 1
  2. The heat pump:
    • Overrides the current operating mode
    • Forces electric heating (E-heater mode)
    • Sets target temperature to 65°C
  3. When both tanks reach 65.5°C, the hardware automatically:
    • Resets register 3 to 0
    • Returns to normal operation mode
  4. The switch state updates on the next poll cycle

💡 Usage Recommendations

  • Weekly sanitization: Run once per week to prevent bacteria buildup
  • Automation friendly: Easily schedule via Home Assistant automations
  • Health & safety: Helps prevent Legionella and other waterborne bacteria
  • Automatic completion: No need to manually turn off - system handles it

🛠️ Configuration

The sterilize register can be configured during setup:

  • Default: Register 3
  • Location: Control Registers step (optional field)
  • The sanitize switch only appears if a sterilize register is configured

🔧 Bug Fixes & Improvements

  • Enhanced .gitignore: Added Python cache files (__pycache__/, *.pyc, etc.)
  • Updated documentation: Improved register reference table in README
  • Enhanced testing tool: Added sterilize register to modbus_test.py output
  • Better translations: Added strings for sterilize register in config flow

📚 Updated Documentation

  • Added sanitize mode section to README
  • New automation example for weekly sanitization scheduling
  • Updated dashboard integration examples with sanitize switch
  • Enhanced register reference table

📦 Files Changed

  • custom_components/midea_heatpump_hws/const.py - Added sterilize register constants
  • custom_components/midea_heatpump_hws/config_flow.py - Added sterilize register to setup
  • custom_components/midea_heatpump_hws/coordinator.py - Added read/write for sterilize mode
  • custom_components/midea_heatpump_hws/switch.py - Added MideaSterilizeSwitch entity
  • custom_components/midea_heatpump_hws/strings.json - Added translations for sterilize register
  • custom_components/midea_heatpump_hws/models/defaults/ecospring_hp300.json - New profile
  • files/modbus_test.py - Added sterilize register to test output
  • .gitignore - Added Python cache patterns
  • README.md - Comprehensive updates for v0.2.4
  • manifest.json - Version bump to 0.2.4

🔄 Upgrade Notes

  • Existing installations: The sanitize switch will appear automatically if register 3 is readable
  • New installations: Sterilize register (3) is included by default in setup
  • Custom configurations: Can be added via Configure → Control Registers
  • No breaking changes: Fully backward compatible with v0.2.3

🙏 Acknowledgments

Thanks to the community member who requested and tested this feature with their EcoSpring HP300 system!

Previous Releases

Version 0.2.3 - Profile System

  • Profile-based setup with pre-configured models
  • Multiple device support with unique entity naming
  • Export/import profiles for community sharing
  • Enhanced services for profile management

Version 0.2.2 - Temperature Limits

  • Mode-specific temperature limits
  • Enhanced 6-step configuration flow
  • Immediate UI updates after commands
  • Better error handling and validation

Version 0.2.1 - Coordinated Polling

  • 90% reduction in network traffic
  • Single coordinator for all entities
  • Improved reliability and performance

Version 0.2.0 - UI Configuration

  • Complete UI-based setup wizard
  • No YAML configuration required
  • Options flow for reconfiguration

Version 0.1.0 - Initial Release

  • Native water_heater entity
  • Built-in Modbus support
  • Basic temperature control
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