Investigate representing configurable manual mode durations in the Duco integration

[ronaldvdmeer]

Summary

Investigate how the Duco integration should represent manual mode durations when those durations are installer-configurable and can change based on the installation.

Signal

Duco indicated that the manual mode duration shown as 15 minutes in the integration is only a default.

• the duration can be changed by an installer in the installation app
• the duration is automatically adjusted to 8 hours when electronic grilles are paired

This means the current wording can suggest a fixed duration even when the actual installation behaves differently.

Questions to answer

• can the active manual duration be read from the Duco API or configuration surface
• can the integration detect when the installation changes the timed behavior, such as the 8 hour case for electronic grilles
• if the duration is not readable, what is the least misleading representation in Home Assistant
• should duration remain in the label, move to an attribute, or be omitted from preset naming entirely

Scope

This issue is for investigation and design only.

Possible follow-up implementation work may include:

• adjusting labels or translations
• surfacing the effective duration dynamically
• exposing extra diagnostic or configuration context

Acceptance criteria

• the technical feasibility of reading the effective duration is documented
• the preferred Home Assistant representation is decided
• follow-up implementation work is split into one or more scoped issues if needed

References

Current manual timing labels are defined in:

• homeassistant/components/duco/strings.json
• homeassistant/components/duco/translations/en.json