Mixed circuit control

A mixed circuit feeds both another downstream heating or cooling circuit and at least one air handling unit (AHU). Because the same circuit serves two loads with different temperature requirements, myCoreAI applies a dedicated control strategy so neither side is starved.

Qualification

myCoreAI treats a circuit as mixed when all three conditions hold:

1. A reference formula is defined for the circuit — a reference held in the circuit's metadata that couples it to the other systems it feeds.
2. A supply curve exists for that reference — the baseline temperature curve against outdoor conditions.
3. Component connections link the reference to at least one downstream heating or cooling circuit and at least one downstream AHU.

Otherwise the circuit is controlled as a regular (non-mixed) circuit.

Supply temperature

myCoreAI combines its optimization target with the baseline value from the supply curve so the most demanding downstream consumer is always covered:

Circuit type	Supply temperature
Heating	Maximum of optimizer target and supply curve baseline
Cooling	Minimum of optimizer target and supply curve baseline

This prevents the AHU side from being undersupplied when the radiator side could be lowered further, and vice versa.

Fallback

If the supply curve is missing or returns a non-numeric value at the current outdoor temperature, myCoreAI logs a warning and uses the optimizer value directly, without the baseline floor or ceiling.

Identification

Mixed circuits are tagged in the Components view of myPortal.