Climate Control: Thermostat entity for controlling heating/cooling water temperature
Water Heater Control: Dedicated entity for domestic hot water (DHW) temperature control
Comprehensive Monitoring: 12+ sensors for temperatures, setpoints, and runtime statistics
Status Indicators: 10 binary sensors for operational states (heating, cooling, pump, alarms, etc.)
Local Polling: Direct communication with heat pump - no cloud dependency
Dashboard Included: Pre-configured Lovelace dashboard YAML

Supported Data Points

Temperature Sensors

Sensor	Description
Inlet Setpoint (ISP)	Smart heating setpoint temperature
System Setpoint (SSP)	System setpoint temperature
Water T1	Inflow/supply water temperature
Water T2	Outflow/return water temperature
DHW T3	Domestic hot water temperature
Outdoor T4	External/outdoor temperature
Water Setpoint	Target heating water temperature
DHW Setpoint	Target domestic hot water temperature

Binary Status Sensors

Sensor	Description
Heating	Heat pump is in heating mode
Cooling	Heat pump is in cooling mode
Working	Compressor is running
DHW Mode	Domestic hot water heating active
Water Pump	Circulation pump is active
Auxiliary Heater	Backup electric heater running
Standby	System in standby mode
Alarm	System alarm active

Runtime Statistics

Sensor	Description
Runtime (PDC)	Total compressor operating hours
Auxiliary Heater Runtime	Total backup heater operating hours

Installation

Step 1: Copy Integration Files

Copy the custom_components/rdz_innova_heatpump folder to your Home Assistant custom_components directory:

<config_directory>/
└── custom_components/
    └── rdz_innova_heatpump/
        ├── __init__.py
        ├── climate.py
        ├── sensor.py
        ├── binary_sensor.py
        ├── water_heater.py
        ├── config_flow.py
        ├── manifest.json
        └── translations/
            └── en.json

Step 2: Restart Home Assistant

After copying the files, restart Home Assistant completely.

Step 3: Add Integration

Go to Settings → Devices & Services
Click + Add Integration
Search for "RDZ" or "Heat Pump Monitor"
Follow the configuration wizard

Step 4: Configure URL

When prompted, enter your heat pump's status URL. The format is typically:

http://<HEAT_PUMP_IP>/installedplugin/com.innova.pdc/<VERSION>/server/index.php?Action=GetStatus

Example:

http://192.168.11.101/installedplugin/com.innova.pdc/2.0.10/server/index.php?Action=GetStatus

To find your URL:

Access your heat pump's web interface in a browser
Open browser developer tools (F12)
Navigate to the Network tab
Look for requests to index.php?Action=GetStatus
Copy the full URL

Verify your URL works by opening it in a browser - you should see a JSON response like:

{
  "success": true,
  "sw": { "V": "3.0.49" },
  "RESULT": {
    "status": { ... }
  }
}

Troubleshooting

JSON Field Mapping Issues

Different firmware versions may have different JSON structures. If you encounter issues, you may need to modify the field mappings in __init__.py.

Known differences between firmware versions:

Field	v3.0.49+	v2.3.x
ISP (Inlet Setpoint)	`"34.3 °C"` (string with unit)	May not exist
SSP (System Setpoint)	Present	May not exist
alarm.status	`true/false`	May only have `type` field
res (aux heater)	Present	May not exist
sce	Present	May not exist

Key mappings to verify in __init__.py:

"inlet_setpoint_temp": float(status.get("ISP", "0").split()[0]),
"system_setpoint_temp": status.get("SSP"),
"water_temp_t1": status.get("watert1"),
"water_temp_t2": status.get("watert2"),
"dhw_temp_t3": status.get("dhwt3"),
"outdoor_temp_t4": status.get("t4"),
"water_setpoint": status.get("watersetpoint"),
"dhw_setpoint": status.get("dhwsetpoint"),
"is_heating": status.get("heating", False),
"is_working": status.get("pwr", False),
"is_cooling": status.get("cooling", False),
"is_dhw": status.get("san", False),
"is_pump_active": status.get("pump", False),
"is_aux_heater": status.get("res", False),
"is_standby": status.get("standby", False),

Common Issues

Integration not appearing: Ensure files are in the correct directory and restart HA completely
Connection failed: Verify the URL is accessible from your HA server
Missing sensors: Check if your firmware version supports all fields
Temperature readings incorrect: Verify JSON field names match your heat pump's response

Dashboard

A pre-configured dashboard is included in dashboards/dash.yaml. To use it:

Copy the YAML content
Go to Settings → Dashboards
Create a new dashboard or edit existing
Use the raw configuration editor to paste the YAML

The dashboard includes:

Status buttons (Alarm, Heating, Cooling, SCE, Standby)
Thermostat cards for water and DHW control
24-hour history graph
Scheduler integration (requires scheduler-card)

Services

`rdz_innova_heatpump.set_water_setpoint`

Manually set the heating water setpoint temperature.

Parameter	Type	Required	Description
temperature	float	Yes	Target temperature (35-60°C)
duration	string	No	Duration: "forever" or time-based

Example:

service: rdz_innova_heatpump.set_water_setpoint
data:
  temperature: 45
  duration: forever

API Reference

Data Fetching

Endpoint: Configurable URL (typically index.php?Action=GetStatus)
Method: GET
Update Interval: Configurable (default: 3 seconds)

Parameter Setting

Endpoint: <base_url>/index.php?Action=SetParameter
Method: POST (form-urlencoded)
Parameters:
- Key: "watersetpoint" or "dhwsetpoint"
- Value: Temperature as string
- manual: Duration ("forever" or time limit)

Technical Details

Domain: rdz_innova_heatpump
IoT Class: Local Polling
Platforms: sensor, binary_sensor, climate, water_heater
Configuration: UI-based (config_flow)

Contributing

Contributions are welcome! If you have a different firmware version or heat pump model, please share your JSON response structure to help improve compatibility.

License

This project is provided as-is for personal use with RDZ PDC heat pumps.