Stages don't correspond to fan_modes

[haraldhh]

This is not actually a bug. I just wanted to document my findings regarding the fan speeds. I have a Mitsubishi RW25 that I'm playing around with. I found this new integration that does a lot more than my old implementation, many thanks for the splendid work You have done!

I especially like that we now get access to more sensors. For calculating COP getting access to the actual fan speed ("stage") is really nice since it enables me to calculate a more accurate COP when fan speeds vary.

I made this little table that helps to understand what stage corresponds to which fan_speed setting;

CN105
stage       fan_modes

LOW         quiet
GENTLE      low
MEDIUM      medium
MODERATE    middle
HIGH       high

This table is probably device dependent, what speeds it offers. I use this to calculate COP in a Template Helper like this;

{# auto, low, medium, high, middle, diffuse  from HA #}
{# auto, dif, low, med, mid, hig,  from from HA, right order? #}
{# 2025-01-31 Now using stage from https://github.com/echavet/MitsubishiCN105ESPHome/ #}
{# 2025-01-31 Now using RW internal power sensor #}
{#       306, 468, 570, 702, 846  m³/h from Mitsubishi RW-25 Service Manual #}
{% set fanspeed = ({"LOW":"306", "GENTLE":"468", "MEDIUM":"570", "MODERATE":"702", "HIGH":"846"}) %}
{% set airdensity = 1.17 %}

{% if (states('sensor.input_power_rw25') |float) > 50 %}
{{ 
  ( 
    ( ( fanspeed[states('sensor.stage_rw25')]|float * airdensity * ( states('sensor.temperature_out') | float - states('sensor.temperature_in') | float ) ) * (1000/3600) ) /
    ( states('sensor.input_power_rw25') | float ) 
  ) 
}}
{% else %}
  0
{% endif %}

I have a DS18B20 temp sensor on both the input and output side of the inner unit. I should probably change the check for power to use the sub_mode = NORMAL instead.

edit, like so;

{# auto, low, medium, high, middle, diffuse  from HA #}
{# auto, dif, low, med, mid, hig,  from from HA, right order? #}
{# 2025-01-31 Now using stage from https://github.com/echavet/MitsubishiCN105ESPHome/ #}
{# 2025-01-31 Now using RW internal power sensor #}
{#       306, 468, 570, 702, 846  m³/h from Mitsubishi RW-25 Service Manual #}
{% set fanspeed = ({"LOW":"306", "GENTLE":"468", "MEDIUM":"570", "MODERATE":"702", "HIGH":"846"}) %}
{% set airdensity = 1.17 %}

{% if (states('sensor.sub_mode_rw25')) == "NORMAL" %}
{{ 
  ( 
    ( ( fanspeed[states('sensor.stage_rw25')]|float * airdensity * ( states('sensor.temperature_out') | float - states('sensor.temperature_in') | float ) ) * (1000/3600) ) /
    ( states('sensor.input_power_rw25') | float ) 
  ) 
}}
{% else %}
  0
{% endif %}

[phidauex]

Feel free to join my conversation here - I'm doing the same thing, but going about it a little differently (doing the calculations inside the ESP device rather than in HA): #228

I've had a hard time mapping some of the lower fan speeds, particularly LOW and GENTLE, since you are right, there are at least 3 different fan mode namings and it isn't easy to map them. For my MSZ-GLxx series indoor units, the remote shows a "quiet ear", and four bars of additional fan level. The manual calls them Quiet, Low, Medium, High, Super-High. I've been making a table of the mapping, but it isn't ideal yet. Your values should help with that because it looks like you've confirmed that Low and Gentle are the two lowest speeds, respectively, at least for your unit.