This block routes the connectors on the evaporator side of the ETS depending on whether DHW integration is present. It also sends a signal to open the diversion valve when there is HHW or DHW load present. If the DHW integration is present, this block also controls the mixing valve which directs the condenser water to the HHW or DHW tanks, sometimes both.
When DHW integration is present:
| Input: load present | Output | ||||
|---|---|---|---|---|---|
| DHW | HHW | yMix | yDiv | TTop | TSet |
| T | T | 0.5 | 1 | The one with higher TSet | Max of two |
| T | F | 0 | 1 | DHW | DHW |
| F | T | 1 | 1 | HHW | HHW |
| F | F | 1 | 0 | HHW | HHW |
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