Plum ecoMAX boiler controller integration for Home Assistant.

Overview

This Home Assistant integration provides support for ecoMAX controllers manufactured by Plum Sp. z o.o.

It's based on PyPlumIO package and supports connection to ecoMAX controller via RS-485 to Ethernet/Wifi converters or via RS-485 to USB adapter.

Connect the ecoMAX
Installation
- HACS
- Manual
Configuration
Entities
Events
Actions
License

Connect the ecoMAX

With this integration you have two ways of connecting to your ecoMAX controller. One is directly connecting the PC that runs Home Assistant via RS485 to USB adapter.

Other way is to use RS485 to WiFi converter. This has a benefit of being able to move PC that runs Home Assistant away from the boiler and connect to it wirelessly.

Regardless of the chosen method, you'll need to find RS485 port on your ecoMAX controller. If you have ecoSTER thermostat, it's easy, as ecoSTERs also use RS485 port and you'll just have to connect your adapter/converter in parallel with it.

If you don't have ecoSTER, look for pins that are labeled as "D+" and "D-" then connect your device as follows:

Adapter ->  ecoMAX
[A]     ->  [D+]
[B]     ->  [D-]
[GND]   ->  [GND] (optional, less interference)

ecoNET 300

While this integration is built on top of PyPlumIO library, which from the start was intended as ecoNET 300 alternative, Patryk B has originally developed awesome HASS integration that communicates with ecoMAX controller via ecoNET 300 device.

Development of this integration has recently been picked up by @jontofront, so it's getting regular updates and fixes again! If you have an ecoNET 300 device, be sure to check it out!

Installation

HACS

Click the following My button to install the integration via HACS:

HACS is recommended method to install and update the plum-ecomax integration. If you still don't use it, give it a try, I'm sure you'll love it!

Manual

Clone this repository with:

git clone https://github.com/denpamusic/homeassistant-plum-ecomax

Move custom_components directory from homeassistant-plum-ecomax to your Home Assistant configuration directory. (next to configuration.yaml)

cp -r ./homeassistant-plum-ecomax/custom_components ~/.homeassistant

Restart Home Assistant.

Configuration

Adding Plum ecoMAX integration to your Home Assistant instance can be done via user interface, by using this My button:

If the above My button doesn’t work, you can also perform the following steps manually:

Browse to your Home Assistant instance.
In the sidebar click on Settings.
From the configuration menu select: Devices & Services.
In the bottom right, click on the Add Integration button.
From the list, search and select "Plum ecoMAX".

Select you connection type. Choose serial port if your ecoMAX controller is connected directly to the PC that is running Home Assistant, choose network if ecoMAX is connected via RS-485 to WiFi converter

To connect via the network you'll need to fill in Host and Port:

To connect via serial port you'll need to fill in the Device path and Baudrate:

⚠️ If you're running your Home Assistant in the docker container, don't forget to map your adapter/converter device, as described here.

Your device should now be available in your Home Assistant installation.

Entities

This integration provides the following entities, split between controller device and sub-devices.

Not all entities might be available for your controller model and entities that are deemed as unsupported during initial setup will be disabled.

ecoMAX pellet boiler controller model names has a p suffix (e. g. ecoMAX 850p), while ecoMAX installation controller model names have an i suffix (e. g. ecoMAX 850i).

Controller

The following section lists entities that are added to the ecoMAX device.

Legend:

i - ecoMAX installation controller
p - ecoMAX pellet boiler controller

ℹ️ Temperature changes of less than 0.1°C are ignored.

Heating temperature
Water heater temperature
Outside temperature
Heating target temperature
Water heater target temperature
Heating mode
Exhaust temperature
Feeder temperature
Return temperature
Heating load
Fan power
Fuel level
Fuel consumption
Total fuel burned 1
Heating power
Lower buffer temperature 2
Upper buffer temperature 2
Flame intensity 2
Lower buffer temperature 2
Upper buffer temperature 2
Flame intensity 2
Oxygen level 3
Solar temperature i
Fireplace temperature i

1 Special meter entity. It counts burned fuel when HomeAssistant is running. 2 Controller support is required. 3 ecoLAMBDA module is required.

Heating pump state
Water heater pump state
Circulation pump state
Fan state
Lighter state
Exhaust fan state
Fireplace pump state i
Solar pump state i

Summer mode (on, off, auto)

Controller power switch
Water heater disinfection switch
Water heater pump switch
Weather control switch p
Fuzzy logic switch p
Heating schedule switch p
Water heater schedule switch p

Heating temperature p
Minimum heating power p
Maximum heating power p
Minimum heating temperature p
Maximum heating temperature p
Grate mode temperature p
Fuel calorific value p

Alert
Connection status
Service password
Connected modules
Detect sub-devices

Water heater

The integration provides full control for the connected indirect water heater using Home Assistant's internal water heater platform.

This includes ability to set target temperature, switch into priority, non-priority mode or turn off.

Please note, that due to the way base water heater entity is implemented, custom modes are not allowed. Please use the following reference to convert between water heater operation modes displayed in Home Assistant and ecoMAX.

HA heater state ->  ecoMAX heater mode
[Performance]   ->  [Priority mode]
[Eco]           ->  [Non-priority mode]

Thermostats

This integration provides Home Assistant's climate platform entity for each ecoSTER thermostat connected to the ecoMAX controller.

This allows to check current room temperature, set target room temperature and change between ecoSTER operation modes.

Mixers (Circuits)

Following section lists entities that are added to each virtual device.

Please note, that for the ecoMAX installation controllers mixers are listed as circuits.

Mixers are added as sub-devices for the ecoMAX controller. They are detected only once, when integration is added to HomeAssistant.

If you connected them after setting up the integration, you can use Detect sub-devices button in Diagnostics section to force re-detection.

Legend:

i - ecoMAX installation controller
p - ecoMAX pellet boiler controller

Mixer temperature
Target mixer temperature

Mixer pump

Work mode (off, heating, floor, pump_only) p

Enable mixer i
Enable in summer mode
Weather control p
Disable pump on thermostat p

Mixer temperature
Minimum mixer temperature
Maximum mixer temperature
Day target mixer temperature 1 i
Night target mixer temperature 1 i

1 Only available on second circuit.

Events

The integration uses following events:

plum_ecomax_alert

Event is fired when ecoMAX controller issues an alert.

Event data

name (config entry name)
code (alert code)
from (datetime object representing the alert start time)
to 1 (datetime object representing the alert end time)

1 Only present if the alert has already ended.

Actions

This integration provides following actions:

Get parameter

Provides ability to get the device parameter by name.

Fields

name

Targets

ecomax
mixer

Response

name
value
min_value
max_value
device_type
device_uid
device_index 1

1 This will help identify which sub-device (mixer) this parameter belongs to. Root device (controller) is always 0, while connected mixers can have 1-5.

Set parameter

Provides ability to set device/sub-device parameter by name. Any parameter that is supported by the device/sub-device can be used with this service. To get parameter names, please download and open diagnostics data.

Fields

name
value

Targets

ecomax
mixer

Get schedule.

Allows to get different schedules from the device.

Fields

type (heating, water_heater)
weekdays (monday, tuesday, ..., etc)

Response

schedules (dictionary containing schedule states, keyed by start times)

Set schedule.

Allows to set different schedules on the device.

Fields

type (heating, water_heater)
weekdays (monday, tuesday, ..., etc)
preset (day, night)
start
end

Calibrate meter

Allows to set meter entity to a specific value. This can be used to set a value of a Total fuel burned sensor which is only available on pellet burner controllers.

Fields

value

Targets

total_fuel_burned

Reset meter

Allows to reset the meter entity value. This can be used to reset a value of the Total fuel burned sensor which is only available on pellet burner controllers.