I think the naming of the different SG Ready states in nymea is somewhat missleading.
There are four states:
Operating mode 1
switch status 1:0
This operating status is downward compatible with the energy provider block that is frequently activated at specific times and consists of a maximum ‘hard’ blocking period of 2 hours.
Nymea currently: Off
Operating mode 2
switch status 0:0
In this switching operation, the heat pump runs in energy-efficient standard operation with proportional filling of the heat storage tank for the maximum energy provider blocking period of two hours.
Nymea currently: Low
Operating mode 3
In this operating status, the heat pump runs within the controller in boost mode for space heating and hot water production. This does not involve a definitive start-up command, but a switch-on recommendation corresponding to the increase on the day in question.
Nymea currently: Standard
Operating mode 4
switch status 1:1:
This involves a definitive start-up command, provided that this is possible within the scope of the control settings.
Nymea currently: High
The most misleading part in my opinion is that Mode 3 is named “Standard” in nymea, while it gives the heatpump the suggestion to increase its power. Standard should bei 0:0 (e.g. none of the conntacts is tied high) this means your Low state should actually be named Standard.
This is particulary important as the sgready plugin uses mode 3 (Standard in nymea terms) as the default value. This means the plugin gets the heatpump in increased mode by default, which is not what you want. See nymea-plugins/sgreadyinterface.cpp at master · nymea/nymea-plugins · GitHub
I might got something wrong when it comes to the SG Ready definitions but I think Mode 2 should be the default. Happy to hear your opinion.